== sanity test 398b: DIO and buffer IO race ============== 21:51:10 (1790733070) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.48617 s, 9.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=174459: Tue Sep 29 21:53:56 2026 read: IOPS=10, BW=41.7KiB/s (42.7kB/s)(5992KiB/143811msec) clat (usec): min=30, max=571990, avg=45304.08, stdev=39800.68 lat (usec): min=30, max=571991, avg=45307.51, stdev=39801.27 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 81], 20.00th=[ 17171], | 30.00th=[ 24249], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 46400], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[177210], 99.50th=[210764], 99.90th=[379585], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 103, per=25.78%, avg=41.25, stdev=20.10, samples=282 iops : min= 1, max= 25, avg= 9.68, stdev= 5.04, samples=282 write: IOPS=10, BW=43.8KiB/s (44.8kB/s)(6296KiB/143811msec); 0 zone resets clat (usec): min=919, max=469217, avg=47842.33, stdev=53192.02 lat (usec): min=921, max=469220, avg=47847.78, stdev=53190.52 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1369], 10.00th=[ 2180], 20.00th=[ 4817], | 30.00th=[ 9372], 40.00th=[ 19792], 50.00th=[ 32900], 60.00th=[ 46400], | 70.00th=[ 60556], 80.00th=[ 80217], 90.00th=[115868], 95.00th=[149947], | 99.00th=[231736], 99.50th=[274727], 99.90th=[463471], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 7, max= 141, per=26.13%, avg=43.90, stdev=21.83, samples=279 iops : min= 1, max= 35, avg=10.34, stdev= 5.50, samples=279 lat (usec) : 50=0.52%, 100=5.24%, 250=0.68%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.56%, 4=4.52%, 10=7.49%, 20=8.98%, 50=30.83% lat (msec) : 100=26.50%, 250=10.09%, 500=0.39%, 750=0.03% cpu : usr=0.09%, sys=5.51%, ctx=6595, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174460: Tue Sep 29 21:53:56 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5940KiB/141055msec) clat (usec): min=34, max=496659, avg=43718.59, stdev=39707.02 lat (usec): min=35, max=496661, avg=43722.72, stdev=39707.78 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 61], 10.00th=[ 78], 20.00th=[ 16319], | 30.00th=[ 22676], 40.00th=[ 28705], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 52691], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[116917], | 99.00th=[173016], 99.50th=[225444], 99.90th=[341836], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 5, max= 119, per=26.18%, avg=41.89, stdev=20.61, samples=276 iops : min= 1, max= 29, avg= 9.84, stdev= 5.21, samples=276 write: IOPS=11, BW=45.0KiB/s (46.1kB/s)(6348KiB/141055msec); 0 zone resets clat (usec): min=978, max=511266, avg=47606.61, stdev=53169.95 lat (usec): min=979, max=511266, avg=47634.36, stdev=53255.26 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1352], 10.00th=[ 2089], 20.00th=[ 4817], | 30.00th=[ 9372], 40.00th=[ 19006], 50.00th=[ 31851], 60.00th=[ 45876], | 70.00th=[ 59507], 80.00th=[ 83362], 90.00th=[115868], 95.00th=[145753], | 99.00th=[225444], 99.50th=[283116], 99.90th=[480248], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 5, max= 119, per=26.61%, avg=44.70, stdev=22.04, samples=276 iops : min= 1, max= 29, avg=10.55, stdev= 5.54, samples=276 lat (usec) : 50=0.65%, 100=5.50%, 250=0.68%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.07% lat (msec) : 2=4.88%, 4=4.20%, 10=7.23%, 20=10.09%, 50=31.18% lat (msec) : 100=24.22%, 250=10.58%, 500=0.46%, 750=0.03% cpu : usr=0.08%, sys=5.46%, ctx=6486, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174461: Tue Sep 29 21:53:56 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(6028KiB/149153msec) clat (usec): min=29, max=338063, avg=43603.20, stdev=38024.05 lat (usec): min=29, max=338065, avg=43604.79, stdev=38024.07 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 79], 20.00th=[ 16450], | 30.00th=[ 22938], 40.00th=[ 28181], 50.00th=[ 35390], 60.00th=[ 43779], | 70.00th=[ 53740], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[173016], 99.50th=[225444], 99.90th=[320865], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7, max= 112, per=25.79%, avg=41.27, stdev=20.84, samples=284 iops : min= 1, max= 28, avg= 9.68, stdev= 5.23, samples=284 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(6260KiB/149153msec); 0 zone resets clat (usec): min=1006, max=864524, avg=52952.35, stdev=58790.88 lat (usec): min=1007, max=864526, avg=52962.31, stdev=58788.37 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1369], 10.00th=[ 2245], 20.00th=[ 5342], | 30.00th=[ 10945], 40.00th=[ 25035], 50.00th=[ 36963], 60.00th=[ 49021], | 70.00th=[ 66323], 80.00th=[ 91751], 90.00th=[125305], 95.00th=[164627], | 99.00th=[252707], 99.50th=[295699], 99.90th=[346031], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 126, per=24.66%, avg=41.44, stdev=20.70, samples=293 iops : min= 1, max= 31, avg= 9.73, stdev= 5.21, samples=293 lat (usec) : 50=0.65%, 100=5.21%, 250=0.78%, 500=0.23%, 750=0.13% lat (usec) : 1000=0.07% lat (msec) : 2=4.82%, 4=3.48%, 10=6.71%, 20=8.85%, 50=32.75% lat (msec) : 100=23.86%, 250=11.82%, 500=0.62%, 1000=0.03% cpu : usr=0.07%, sys=5.20%, ctx=6676, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174462: Tue Sep 29 21:53:56 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(6052KiB/143903msec) clat (usec): min=31, max=410311, avg=44489.02, stdev=39577.49 lat (usec): min=31, max=410312, avg=44496.12, stdev=39578.68 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 61], 10.00th=[ 75], 20.00th=[ 15401], | 30.00th=[ 23462], 40.00th=[ 29492], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 55313], 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[112722], | 99.00th=[170918], 99.50th=[210764], 99.90th=[358613], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 118, per=26.36%, avg=42.18, stdev=20.13, samples=280 iops : min= 1, max= 29, avg= 9.90, stdev= 5.07, samples=280 write: IOPS=10, BW=43.3KiB/s (44.4kB/s)(6236KiB/143903msec); 0 zone resets clat (usec): min=1035, max=651216, avg=48767.71, stdev=55028.63 lat (usec): min=1037, max=651219, avg=48776.42, stdev=55026.71 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1385], 10.00th=[ 2409], 20.00th=[ 5014], | 30.00th=[ 8848], 40.00th=[ 19268], 50.00th=[ 32900], 60.00th=[ 46400], | 70.00th=[ 62653], 80.00th=[ 84411], 90.00th=[120062], 95.00th=[149947], | 99.00th=[242222], 99.50th=[283116], 99.90th=[396362], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 7, max= 119, per=25.75%, avg=43.25, stdev=20.95, samples=281 iops : min= 1, max= 29, avg=10.17, stdev= 5.26, samples=281 lat (usec) : 50=1.01%, 100=5.50%, 250=1.11%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=4.69%, 4=4.04%, 10=8.04%, 20=8.37%, 50=31.18% lat (msec) : 100=24.19%, 250=11.04%, 500=0.55%, 750=0.03% cpu : usr=0.08%, sys=5.31%, ctx=6518, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=161KiB/s (165kB/s), 40.4KiB/s-42.1KiB/s (41.4kB/s-43.1kB/s), io=23.4MiB (24.6MB), run=141055-149153msec WRITE: bw=169KiB/s (173kB/s), 41.0KiB/s-45.0KiB/s (42.0kB/s-46.1kB/s), io=24.6MiB (25.7MB), run=141055-149153msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174463: Tue Sep 29 21:56:24 2026 read: IOPS=5, BW=20.2KiB/s (20.7kB/s)(5992KiB/296275msec) clat (msec): min=6, max=600, avg=37.15, stdev=40.31 lat (msec): min=6, max=600, avg=37.16, stdev=40.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 114], | 99.00th=[ 192], 99.50th=[ 241], 99.90th=[ 317], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 87, per=29.93%, avg=23.94, stdev=16.04, samples=483 iops : min= 1, max= 21, avg= 5.35, stdev= 4.03, samples=483 write: IOPS=5, BW=21.2KiB/s (21.8kB/s)(6296KiB/296275msec); 0 zone resets clat (msec): min=37, max=673, avg=152.59, stdev=83.60 lat (msec): min=37, max=673, avg=152.59, stdev=83.60 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 203], 90.00th=[ 262], 95.00th=[ 305], | 99.00th=[ 472], 99.50th=[ 542], 99.90th=[ 667], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 55, per=25.00%, avg=21.00, stdev=10.31, samples=575 iops : min= 1, max= 13, avg= 4.61, stdev= 2.64, samples=575 lat (msec) : 10=2.96%, 20=17.02%, 50=19.30%, 100=20.54%, 250=34.18% lat (msec) : 500=5.70%, 750=0.29% cpu : usr=0.05%, sys=1.13%, ctx=5199, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174464: Tue Sep 29 21:56:24 2026 read: IOPS=5, BW=20.0KiB/s (20.5kB/s)(5940KiB/296986msec) clat (msec): min=6, max=516, avg=38.13, stdev=45.47 lat (msec): min=6, max=516, avg=38.13, stdev=45.47 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 49], 90.00th=[ 87], 95.00th=[ 124], | 99.00th=[ 205], 99.50th=[ 262], 99.90th=[ 506], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 87, per=29.74%, avg=23.79, stdev=16.62, samples=481 iops : min= 1, max= 21, avg= 5.31, stdev= 4.18, samples=481 write: IOPS=5, BW=21.4KiB/s (21.9kB/s)(6348KiB/296986msec); 0 zone resets clat (msec): min=41, max=770, avg=151.16, stdev=84.01 lat (msec): min=41, max=770, avg=151.17, stdev=84.00 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 116], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 253], 95.00th=[ 313], | 99.00th=[ 477], 99.50th=[ 550], 99.90th=[ 709], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 55, per=25.38%, avg=21.32, stdev=10.37, samples=570 iops : min= 1, max= 13, avg= 4.68, stdev= 2.65, samples=570 lat (msec) : 10=2.77%, 20=18.23%, 50=18.23%, 100=19.53%, 250=35.61% lat (msec) : 500=5.14%, 750=0.46%, 1000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5211, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174465: Tue Sep 29 21:56:24 2026 read: IOPS=5, BW=20.3KiB/s (20.8kB/s)(6028KiB/296730msec) clat (msec): min=5, max=513, avg=39.18, stdev=43.42 lat (msec): min=5, max=513, avg=39.18, stdev=43.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 55], 90.00th=[ 93], 95.00th=[ 122], | 99.00th=[ 207], 99.50th=[ 249], 99.90th=[ 481], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 103, per=28.52%, avg=22.82, stdev=15.74, samples=509 iops : min= 1, max= 25, avg= 5.07, stdev= 3.98, samples=509 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6260KiB/296730msec); 0 zone resets clat (msec): min=42, max=1059, avg=151.59, stdev=84.32 lat (msec): min=42, max=1059, avg=151.60, stdev=84.32 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 117], 50.00th=[ 129], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 199], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 456], 99.50th=[ 558], 99.90th=[ 844], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 55, per=25.22%, avg=21.18, stdev=10.27, samples=567 iops : min= 1, max= 13, avg= 4.65, stdev= 2.63, samples=567 lat (msec) : 10=2.67%, 20=17.90%, 50=18.29%, 100=19.76%, 250=35.94% lat (msec) : 500=4.98%, 750=0.39%, 1000=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.12%, ctx=5313, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174466: Tue Sep 29 21:56:24 2026 read: IOPS=5, BW=20.5KiB/s (21.0kB/s)(6052KiB/295099msec) clat (msec): min=5, max=490, avg=37.81, stdev=42.91 lat (msec): min=5, max=490, avg=37.82, stdev=42.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 88], 95.00th=[ 122], | 99.00th=[ 201], 99.50th=[ 239], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 7, max= 119, per=29.43%, avg=23.55, stdev=17.02, samples=495 iops : min= 1, max= 29, avg= 5.25, stdev= 4.28, samples=495 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6236KiB/295099msec); 0 zone resets clat (msec): min=36, max=718, avg=152.31, stdev=81.02 lat (msec): min=36, max=718, avg=152.31, stdev=81.02 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 116], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 203], 90.00th=[ 255], 95.00th=[ 321], | 99.00th=[ 456], 99.50th=[ 493], 99.90th=[ 625], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 47, per=24.80%, avg=20.83, stdev=10.32, samples=573 iops : min= 1, max= 11, avg= 4.56, stdev= 2.65, samples=573 lat (msec) : 10=2.93%, 20=18.52%, 50=18.13%, 100=19.50%, 250=35.25% lat (msec) : 500=5.44%, 750=0.23% cpu : usr=0.04%, sys=1.10%, ctx=5301, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=80.9KiB/s (82.8kB/s), 20.0KiB/s-20.5KiB/s (20.5kB/s-21.0kB/s), io=23.4MiB (24.6MB), run=295099-296986msec WRITE: bw=84.7KiB/s (86.7kB/s), 21.1KiB/s-21.4KiB/s (21.6kB/s-21.9kB/s), io=24.6MiB (25.7MB), run=295099-296986msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=174526: Tue Sep 29 21:57:08 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5920KiB/33968msec) clat (usec): min=34, max=260960, avg=48537.85, stdev=36417.15 lat (usec): min=35, max=260961, avg=48540.22, stdev=36417.59 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 88], 20.00th=[ 22676], | 30.00th=[ 31065], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 52691], | 70.00th=[ 62129], 80.00th=[ 73925], 90.00th=[ 90702], 95.00th=[103285], | 99.00th=[175113], 99.50th=[229639], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 62, max= 380, per=25.14%, avg=173.70, stdev=71.87, samples=67 iops : min= 3, max= 23, avg=10.09, stdev= 4.52, samples=67 write: IOPS=11, BW=187KiB/s (192kB/s)(6368KiB/33968msec); 0 zone resets clat (usec): min=1559, max=296328, avg=39910.69, stdev=41510.41 lat (usec): min=1562, max=296330, avg=39965.39, stdev=41475.66 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2474], 10.00th=[ 4293], 20.00th=[ 7177], | 30.00th=[ 10814], 40.00th=[ 15139], 50.00th=[ 23200], 60.00th=[ 36963], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[101188], 95.00th=[125305], | 99.00th=[175113], 99.50th=[242222], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 380, per=25.70%, avg=186.84, stdev=73.67, samples=67 iops : min= 1, max= 23, avg=10.93, stdev= 4.64, samples=67 lat (usec) : 50=0.26%, 100=5.86%, 250=1.43%, 500=0.13%, 750=0.13% lat (msec) : 2=1.30%, 4=3.39%, 10=10.68%, 20=9.38%, 50=30.34% lat (msec) : 100=28.91%, 250=7.94%, 500=0.26% cpu : usr=0.07%, sys=5.94%, ctx=1709, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174527: Tue Sep 29 21:57:08 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34644msec) clat (usec): min=44, max=263025, avg=51579.09, stdev=39219.22 lat (usec): min=44, max=263025, avg=51589.92, stdev=39235.70 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 83], 10.00th=[ 115], 20.00th=[ 24249], | 30.00th=[ 31065], 40.00th=[ 38536], 50.00th=[ 45351], 60.00th=[ 56361], | 70.00th=[ 64750], 80.00th=[ 77071], 90.00th=[100140], 95.00th=[112722], | 99.00th=[189793], 99.50th=[238027], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 310, per=23.90%, avg=165.12, stdev=65.10, samples=68 iops : min= 1, max= 19, avg= 9.54, stdev= 4.11, samples=68 write: IOPS=11, BW=189KiB/s (193kB/s)(6544KiB/34644msec); 0 zone resets clat (usec): min=1532, max=253180, avg=38756.34, stdev=40812.47 lat (usec): min=1534, max=253184, avg=38766.50, stdev=40813.22 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2900], 10.00th=[ 4490], 20.00th=[ 7046], | 30.00th=[ 9634], 40.00th=[ 15139], 50.00th=[ 24249], 60.00th=[ 36963], | 70.00th=[ 48497], 80.00th=[ 65799], 90.00th=[ 93848], 95.00th=[114820], | 99.00th=[189793], 99.50th=[210764], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 443, per=25.95%, avg=188.63, stdev=91.21, samples=68 iops : min= 1, max= 27, avg=11.04, stdev= 5.77, samples=68 lat (usec) : 50=0.13%, 100=4.04%, 250=1.56%, 500=0.39%, 750=0.13% lat (msec) : 2=1.17%, 4=3.12%, 10=13.02%, 20=8.85%, 50=30.34% lat (msec) : 100=28.26%, 250=8.72%, 500=0.26% cpu : usr=0.11%, sys=5.87%, ctx=1663, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174528: Tue Sep 29 21:57:08 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/34042msec) clat (usec): min=39, max=315007, avg=47592.49, stdev=37777.73 lat (usec): min=39, max=315009, avg=47595.10, stdev=37777.21 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 78], 10.00th=[ 93], 20.00th=[ 19268], | 30.00th=[ 29754], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[112722], | 99.00th=[181404], 99.50th=[225444], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 63, max= 352, per=26.58%, avg=183.66, stdev=68.25, samples=67 iops : min= 3, max= 22, avg=10.72, stdev= 4.33, samples=67 write: IOPS=11, BW=177KiB/s (181kB/s)(6032KiB/34042msec); 0 zone resets clat (usec): min=1570, max=255980, avg=40399.05, stdev=40912.12 lat (usec): min=1572, max=255982, avg=40411.80, stdev=40907.96 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2933], 10.00th=[ 4424], 20.00th=[ 7308], | 30.00th=[ 11338], 40.00th=[ 17433], 50.00th=[ 28443], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[126354], | 99.00th=[191890], 99.50th=[248513], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 381, per=24.15%, avg=175.57, stdev=78.22, samples=67 iops : min= 1, max= 23, avg=10.21, stdev= 4.89, samples=67 lat (usec) : 50=0.39%, 100=5.60%, 250=1.69%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.52% lat (msec) : 2=1.69%, 4=3.12%, 10=9.51%, 20=9.11%, 50=32.55% lat (msec) : 100=27.60%, 250=7.55%, 500=0.26% cpu : usr=0.11%, sys=5.51%, ctx=1626, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174529: Tue Sep 29 21:57:08 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33581msec) clat (usec): min=41, max=265751, avg=50181.07, stdev=39870.04 lat (usec): min=42, max=265753, avg=50182.99, stdev=39869.96 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 76], 10.00th=[ 94], 20.00th=[ 15795], | 30.00th=[ 31589], 40.00th=[ 40109], 50.00th=[ 47449], 60.00th=[ 54264], | 70.00th=[ 62653], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[111674], | 99.00th=[200279], 99.50th=[250610], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 501, per=25.73%, avg=177.77, stdev=81.61, samples=66 iops : min= 1, max= 31, avg=10.35, stdev= 5.18, samples=66 write: IOPS=11, BW=186KiB/s (191kB/s)(6256KiB/33581msec); 0 zone resets clat (usec): min=1447, max=264995, avg=36828.81, stdev=40062.58 lat (usec): min=1448, max=264997, avg=36881.36, stdev=40158.81 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 3326], 10.00th=[ 4113], 20.00th=[ 6587], | 30.00th=[ 9372], 40.00th=[ 14353], 50.00th=[ 21365], 60.00th=[ 31851], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[198181], 99.50th=[231736], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 61, max= 382, per=25.98%, avg=188.88, stdev=78.60, samples=65 iops : min= 3, max= 23, avg=11.05, stdev= 4.95, samples=65 lat (usec) : 50=0.52%, 100=4.95%, 250=2.21%, 500=0.52%, 750=0.39% lat (msec) : 2=1.56%, 4=4.04%, 10=11.46%, 20=9.11%, 50=28.26% lat (msec) : 100=28.91%, 250=7.55%, 500=0.52% cpu : usr=0.08%, sys=5.88%, ctx=1653, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=691KiB/s (708kB/s), 166KiB/s-184KiB/s (170kB/s-188kB/s), io=23.4MiB (24.5MB), run=33581-34644msec WRITE: bw=727KiB/s (745kB/s), 177KiB/s-189KiB/s (181kB/s-193kB/s), io=24.6MiB (25.8MB), run=33581-34644msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174531: Tue Sep 29 21:57:58 2026 read: IOPS=4, BW=71.6KiB/s (73.3kB/s)(5920KiB/82711msec) clat (msec): min=6, max=312, avg=46.86, stdev=42.55 lat (msec): min=6, max=312, avg=46.86, stdev=42.56 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 49], 80.00th=[ 61], 90.00th=[ 90], 95.00th=[ 136], | 99.00th=[ 230], 99.50th=[ 275], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 29, max= 254, per=28.06%, avg=81.08, stdev=50.74, samples=143 iops : min= 1, max= 15, avg= 4.30, stdev= 3.25, samples=143 write: IOPS=4, BW=76.0KiB/s (78.8kB/s)(6368KiB/82711msec); 0 zone resets clat (msec): min=63, max=513, avg=163.93, stdev=69.04 lat (msec): min=63, max=513, avg=163.94, stdev=69.04 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 82], 10.00th=[ 93], 20.00th=[ 112], | 30.00th=[ 126], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 205], 90.00th=[ 251], 95.00th=[ 296], | 99.00th=[ 414], 99.50th=[ 447], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 29, max= 191, per=25.78%, avg=78.37, stdev=32.54, samples=159 iops : min= 1, max= 11, avg= 4.12, stdev= 2.13, samples=159 lat (msec) : 10=1.04%, 20=8.46%, 50=24.87%, 100=18.36%, 250=41.80% lat (msec) : 500=5.34%, 750=0.13% cpu : usr=0.04%, sys=1.25%, ctx=1337, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174532: Tue Sep 29 21:57:58 2026 read: IOPS=4, BW=70.4KiB/s (72.1kB/s)(5744KiB/81538msec) clat (msec): min=8, max=243, avg=46.45, stdev=41.13 lat (msec): min=8, max=243, avg=46.45, stdev=41.13 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 96], 95.00th=[ 153], | 99.00th=[ 205], 99.50th=[ 234], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 24, max= 320, per=30.17%, avg=87.19, stdev=54.13, samples=130 iops : min= 1, max= 20, avg= 4.68, stdev= 3.43, samples=130 write: IOPS=5, BW=80.3KiB/s (82.2kB/s)(6544KiB/81538msec); 0 zone resets clat (msec): min=49, max=419, avg=158.32, stdev=62.58 lat (msec): min=49, max=419, avg=158.33, stdev=62.59 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 84], 10.00th=[ 94], 20.00th=[ 107], | 30.00th=[ 122], 40.00th=[ 134], 50.00th=[ 144], 60.00th=[ 157], | 70.00th=[ 176], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 284], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 24, max= 159, per=26.62%, avg=80.91, stdev=31.55, samples=159 iops : min= 1, max= 9, avg= 4.28, stdev= 2.07, samples=159 lat (msec) : 10=0.39%, 20=9.90%, 50=23.70%, 100=16.54%, 250=45.05% lat (msec) : 500=4.43% cpu : usr=0.05%, sys=1.19%, ctx=1366, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174533: Tue Sep 29 21:57:58 2026 read: IOPS=5, BW=80.1KiB/s (82.0kB/s)(6256KiB/78082msec) clat (msec): min=8, max=226, avg=43.76, stdev=37.34 lat (msec): min=8, max=226, avg=43.76, stdev=37.34 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 96], 95.00th=[ 132], | 99.00th=[ 203], 99.50th=[ 211], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 29, max= 414, per=31.64%, avg=91.44, stdev=62.26, samples=135 iops : min= 1, max= 25, avg= 4.95, stdev= 3.94, samples=135 write: IOPS=4, BW=77.3KiB/s (79.1kB/s)(6032KiB/78082msec); 0 zone resets clat (msec): min=54, max=478, avg=161.45, stdev=70.16 lat (msec): min=54, max=478, avg=161.46, stdev=70.16 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 80], 10.00th=[ 91], 20.00th=[ 107], | 30.00th=[ 121], 40.00th=[ 131], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 180], 80.00th=[ 209], 90.00th=[ 251], 95.00th=[ 300], | 99.00th=[ 409], 99.50th=[ 477], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 31, max= 190, per=25.73%, avg=78.21, stdev=32.97, samples=151 iops : min= 1, max= 11, avg= 4.12, stdev= 2.16, samples=151 lat (msec) : 10=0.52%, 20=10.03%, 50=27.73%, 100=16.02%, 250=40.62% lat (msec) : 500=5.08% cpu : usr=0.04%, sys=1.22%, ctx=1348, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174534: Tue Sep 29 21:57:58 2026 read: IOPS=4, BW=74.6KiB/s (76.4kB/s)(6032KiB/80842msec) clat (msec): min=10, max=243, avg=45.08, stdev=37.79 lat (msec): min=10, max=243, avg=45.08, stdev=37.79 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 57], 90.00th=[ 89], 95.00th=[ 127], | 99.00th=[ 215], 99.50th=[ 228], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 29, max= 286, per=30.02%, avg=86.76, stdev=55.85, samples=135 iops : min= 1, max= 17, avg= 4.66, stdev= 3.53, samples=135 write: IOPS=4, BW=77.4KiB/s (79.2kB/s)(6256KiB/80842msec); 0 zone resets clat (msec): min=44, max=508, avg=163.06, stdev=68.29 lat (msec): min=44, max=508, avg=163.10, stdev=68.29 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 82], 10.00th=[ 94], 20.00th=[ 108], | 30.00th=[ 124], 40.00th=[ 136], 50.00th=[ 148], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 211], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 401], 99.50th=[ 430], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 31, max= 159, per=25.62%, avg=77.90, stdev=30.69, samples=157 iops : min= 1, max= 9, avg= 4.09, stdev= 2.01, samples=157 lat (msec) : 20=8.59%, 50=27.47%, 100=15.89%, 250=42.97%, 500=4.95% lat (msec) : 750=0.13% cpu : usr=0.04%, sys=1.21%, ctx=1358, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=290KiB/s (297kB/s), 70.4KiB/s-80.1KiB/s (72.1kB/s-82.0kB/s), io=23.4MiB (24.5MB), run=78082-82711msec WRITE: bw=305KiB/s (312kB/s), 76.0KiB/s-80.3KiB/s (78.8kB/s-82.2kB/s), io=24.6MiB (25.8MB), run=78082-82711msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=174553: Tue Sep 29 21:58:11 2026 read: IOPS=1, BW=1788KiB/s (1831kB/s)(7168KiB/4009msec) clat (usec): min=537, max=425109, avg=220060.15, stdev=133409.18 lat (usec): min=538, max=425111, avg=220062.12, stdev=133409.26 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[154141], | 30.00th=[187696], 40.00th=[187696], 50.00th=[198181], 60.00th=[256902], | 70.00th=[256902], 80.00th=[316670], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 1992, max= 3976, per=55.56%, avg=2499.50, stdev=984.40, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1277KiB/s (1308kB/s)(5120KiB/4009msec); 0 zone resets clat (msec): min=262, max=767, avg=483.70, stdev=228.09 lat (msec): min=262, max=767, avg=483.85, stdev=228.07 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1988, max= 2039, per=32.03%, avg=2017.25, stdev=21.33, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=13.12%, ctx=241, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174554: Tue Sep 29 21:58:11 2026 read: IOPS=0, BW=450KiB/s (461kB/s)(2048KiB/4552msec) clat (usec): min=861, max=196721, avg=98791.46, stdev=138494.49 lat (usec): min=863, max=196724, avg=98793.85, stdev=138494.97 clat percentiles (usec): | 1.00th=[ 865], 5.00th=[ 865], 10.00th=[ 865], 20.00th=[ 865], | 30.00th=[ 865], 40.00th=[ 865], 50.00th=[ 865], 60.00th=[196084], | 70.00th=[196084], 80.00th=[196084], 90.00th=[196084], 95.00th=[196084], | 99.00th=[196084], 99.50th=[196084], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 1434, max= 2027, per=38.46%, avg=1730.50, stdev=419.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2250KiB/s (2304kB/s)(10.0MiB/4552msec); 0 zone resets clat (msec): min=80, max=1101, avg=432.25, stdev=325.01 lat (msec): min=80, max=1101, avg=432.35, stdev=325.03 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 133], | 30.00th=[ 239], 40.00th=[ 268], 50.00th=[ 334], 60.00th=[ 338], | 70.00th=[ 397], 80.00th=[ 575], 90.00th=[ 860], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1984, max= 4055, per=42.67%, avg=2687.33, stdev=1053.40, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=13.25%, ctx=164, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174555: Tue Sep 29 21:58:11 2026 read: IOPS=1, BW=1672KiB/s (1712kB/s)(6144KiB/3674msec) clat (usec): min=595, max=323351, avg=174950.98, stdev=125129.21 lat (usec): min=597, max=323353, avg=174952.65, stdev=125129.06 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 44303], | 30.00th=[ 44303], 40.00th=[212861], 50.00th=[212861], 60.00th=[221250], | 70.00th=[246416], 80.00th=[246416], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 1984, max= 4055, per=55.80%, avg=2510.50, stdev=1029.73, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1672KiB/s (1712kB/s)(6144KiB/3674msec); 0 zone resets clat (msec): min=253, max=677, avg=425.57, stdev=191.84 lat (msec): min=253, max=678, avg=425.92, stdev=192.23 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 401], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1381, max= 2043, per=30.02%, avg=1890.80, stdev=285.61, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=15.76%, ctx=256, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174556: Tue Sep 29 21:58:11 2026 read: IOPS=1, BW=1343KiB/s (1375kB/s)(5120KiB/3812msec) clat (usec): min=627, max=638448, avg=199569.62, stdev=262724.33 lat (usec): min=629, max=638450, avg=199570.94, stdev=262724.46 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 627], | 30.00th=[ 725], 40.00th=[ 725], 50.00th=[137364], 60.00th=[137364], | 70.00th=[221250], 80.00th=[221250], 90.00th=[641729], 95.00th=[641729], | 99.00th=[641729], 99.50th=[641729], 99.90th=[641729], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 3976, max= 4079, per=89.52%, avg=4027.50, stdev=72.83, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1880KiB/s (1926kB/s)(7168KiB/3812msec); 0 zone resets clat (msec): min=148, max=594, avg=385.76, stdev=164.08 lat (msec): min=149, max=594, avg=385.91, stdev=164.08 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 253], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1988, max= 3984, per=38.19%, avg=2405.00, stdev=882.79, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=25.00%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=14.64%, ctx=220, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4499KiB/s (4607kB/s), 450KiB/s-1788KiB/s (461kB/s-1831kB/s), io=20.0MiB (20.0MB), run=3674-4552msec WRITE: bw=6299KiB/s (6450kB/s), 1277KiB/s-2250KiB/s (1308kB/s-2304kB/s), io=28.0MiB (29.4MB), run=3674-4552msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174558: Tue Sep 29 21:58:12 2026 read: IOPS=1, BW=1502KiB/s (1538kB/s)(7168KiB/4772msec) clat (msec): min=104, max=733, avg=276.72, stdev=228.78 lat (msec): min=104, max=733, avg=276.72, stdev=228.78 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 384], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 2043, max= 4079, per=75.44%, avg=2971.67, stdev=1029.69, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1073KiB/s (1099kB/s)(5120KiB/4772msec); 0 zone resets clat (msec): min=218, max=1074, avg=559.09, stdev=327.85 lat (msec): min=218, max=1074, avg=559.19, stdev=327.86 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 2011, max= 2043, per=36.79%, avg=2028.33, stdev=16.17, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.88%, ctx=79, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174559: Tue Sep 29 21:58:12 2026 read: IOPS=0, BW=394KiB/s (403kB/s)(2048KiB/5199msec) clat (msec): min=93, max=177, avg=135.18, stdev=59.62 lat (msec): min=93, max=177, avg=135.18, stdev=59.62 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 1393, max= 1980, per=42.82%, avg=1686.50, stdev=415.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1970KiB/s (2017kB/s)(10.0MiB/5199msec); 0 zone resets clat (msec): min=107, max=1807, avg=490.30, stdev=665.89 lat (msec): min=107, max=1807, avg=490.38, stdev=665.89 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 117], | 30.00th=[ 123], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 222], | 70.00th=[ 253], 80.00th=[ 255], 90.00th=[ 1687], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 2011, max= 4063, per=54.78%, avg=3020.75, stdev=1145.45, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 2000=16.67% cpu : usr=0.00%, sys=3.91%, ctx=74, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174560: Tue Sep 29 21:58:12 2026 read: IOPS=1, BW=1302KiB/s (1333kB/s)(6144KiB/4719msec) clat (msec): min=72, max=471, avg=245.71, stdev=181.90 lat (msec): min=72, max=471, avg=245.71, stdev=181.90 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 259], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 2031, max= 4079, per=69.04%, avg=2719.33, stdev=1177.54, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1302KiB/s (1333kB/s)(6144KiB/4719msec); 0 zone resets clat (msec): min=252, max=1096, avg=538.08, stdev=304.83 lat (msec): min=252, max=1096, avg=538.19, stdev=304.85 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 527], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2043, max= 4023, per=49.02%, avg=2703.00, stdev=1143.15, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=16.67%, 500=50.00%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=3.79%, ctx=102, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174561: Tue Sep 29 21:58:12 2026 read: IOPS=1, BW=1024KiB/s (1049kB/s)(5120KiB/5000msec) clat (msec): min=71, max=304, avg=196.26, stdev=97.63 lat (msec): min=71, max=304, avg=196.26, stdev=97.63 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 72], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1980, max= 6095, per=100.00%, avg=4037.50, stdev=2909.74, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1434KiB/s (1468kB/s)(7168KiB/5000msec); 0 zone resets clat (msec): min=102, max=1519, avg=573.23, stdev=556.54 lat (msec): min=102, max=1519, avg=573.38, stdev=556.52 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 140], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 234], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 1083], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1980, max= 4096, per=45.93%, avg=2532.50, stdev=1042.65, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 1000=8.33%, 2000=16.67% cpu : usr=0.00%, sys=3.44%, ctx=77, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3939KiB/s (4034kB/s), 394KiB/s-1502KiB/s (403kB/s-1538kB/s), io=20.0MiB (20.0MB), run=4719-5199msec WRITE: bw=5515KiB/s (5647kB/s), 1073KiB/s-1970KiB/s (1099kB/s-2017kB/s), io=28.0MiB (29.4MB), run=4719-5199msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=174568: Tue Sep 29 21:58:28 2026 read: IOPS=1, BW=4256KiB/s (4358kB/s)(12.0MiB/2887msec) clat (msec): min=836, max=1110, avg=933.09, stdev=154.05 lat (msec): min=836, max=1110, avg=933.09, stdev=154.05 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7787, max= 8143, per=100.00%, avg=7965.00, stdev=251.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.07%, sys=11.05%, ctx=378, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174569: Tue Sep 29 21:58:28 2026 read: IOPS=0, BW=1183KiB/s (1212kB/s)(4096KiB/3462msec) clat (nsec): min=809328k, max=809328k, avg=809328244.00, stdev= 0.00 lat (nsec): min=809331k, max=809331k, avg=809330859.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2366KiB/s (2423kB/s)(8192KiB/3462msec); 0 zone resets clat (msec): min=1202, max=1416, avg=1309.25, stdev=151.31 lat (msec): min=1202, max=1417, avg=1310.04, stdev=151.48 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1418], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8143, max= 8143, per=93.09%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.14%, sys=4.31%, ctx=144, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174570: Tue Sep 29 21:58:28 2026 write: IOPS=0, BW=3280KiB/s (3359kB/s)(12.0MiB/3746msec); 0 zone resets clat (msec): min=894, max=1533, avg=1246.08, stdev=324.43 lat (msec): min=894, max=1533, avg=1247.78, stdev=324.77 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7772, max= 8126, per=90.88%, avg=7949.00, stdev=250.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.07%, ctx=49, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174571: Tue Sep 29 21:58:28 2026 write: IOPS=0, BW=3596KiB/s (3682kB/s)(12.0MiB/3417msec); 0 zone resets clat (msec): min=442, max=2132, avg=1102.04, stdev=903.96 lat (msec): min=443, max=2132, avg=1102.46, stdev=903.87 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8015, max= 8143, per=92.36%, avg=8079.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.06%, sys=2.81%, ctx=48, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4733KiB/s (4846kB/s), 1183KiB/s-4256KiB/s (1212kB/s-4358kB/s), io=16.0MiB (16.8MB), run=2887-3462msec WRITE: bw=8747KiB/s (8957kB/s), 2366KiB/s-3596KiB/s (2423kB/s-3682kB/s), io=32.0MiB (33.6MB), run=3417-3746msec rand-rw: (groupid=0, jobs=1): err= 0: pid=174573: Tue Sep 29 21:58:29 2026 read: IOPS=0, BW=3010KiB/s (3082kB/s)(12.0MiB/4083msec) clat (msec): min=265, max=2044, avg=1360.60, stdev=958.13 lat (msec): min=265, max=2044, avg=1360.61, stdev=958.13 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 1770], 50.00th=[ 1770], 60.00th=[ 1770], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.69%, ctx=56, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174574: Tue Sep 29 21:58:29 2026 read: IOPS=0, BW=980KiB/s (1004kB/s)(4096KiB/4179msec) clat (nsec): min=2324.1M, max=2324.1M, avg=2324093688.00, stdev= 0.00 lat (nsec): min=2324.1M, max=2324.1M, avg=2324094963.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2333], 5.00th=[ 2333], 10.00th=[ 2333], 20.00th=[ 2333], | 30.00th=[ 2333], 40.00th=[ 2333], 50.00th=[ 2333], 60.00th=[ 2333], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1960KiB/s (2007kB/s)(8192KiB/4179msec); 0 zone resets clat (msec): min=619, max=1233, avg=926.52, stdev=434.71 lat (msec): min=619, max=1234, avg=927.12, stdev=434.89 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.87%, ctx=45, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174575: Tue Sep 29 21:58:29 2026 write: IOPS=0, BW=3246KiB/s (3324kB/s)(12.0MiB/3785msec); 0 zone resets clat (msec): min=360, max=1725, avg=1258.08, stdev=777.66 lat (msec): min=363, max=1726, avg=1259.49, stdev=776.21 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8110, max= 8175, per=100.00%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.01%, ctx=40, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=174576: Tue Sep 29 21:58:29 2026 write: IOPS=0, BW=3570KiB/s (3656kB/s)(12.0MiB/3442msec); 0 zone resets clat (msec): min=923, max=1566, avg=1146.15, stdev=364.14 lat (msec): min=924, max=1566, avg=1146.77, stdev=363.91 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.42%, ctx=53, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3921KiB/s (4015kB/s), 980KiB/s-3010KiB/s (1004kB/s-3082kB/s), io=16.0MiB (16.8MB), run=4083-4179msec WRITE: bw=7841KiB/s (8029kB/s), 1960KiB/s-3570KiB/s (2007kB/s-3656kB/s), io=32.0MiB (33.6MB), run=3442-4179msec