== sanity test 398b: DIO and buffer IO race ============== 10:47:38 (1782485258) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.4654 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=182864: Fri Jun 26 10:49:26 2026 read: IOPS=16, BW=65.8KiB/s (67.4kB/s)(5992KiB/90997msec) clat (usec): min=32, max=296173, avg=33177.20, stdev=20907.04 lat (usec): min=32, max=296175, avg=33181.57, stdev=20905.80 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 8586], 10.00th=[ 13698], 20.00th=[ 17695], | 30.00th=[ 21627], 40.00th=[ 25035], 50.00th=[ 28967], 60.00th=[ 34341], | 70.00th=[ 39584], 80.00th=[ 46400], 90.00th=[ 57934], 95.00th=[ 70779], | 99.00th=[100140], 99.50th=[107480], 99.90th=[152044], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 15, max= 150, per=25.22%, avg=65.32, stdev=21.30, samples=180 iops : min= 3, max= 37, avg=15.70, stdev= 5.38, samples=180 write: IOPS=17, BW=69.2KiB/s (70.8kB/s)(6296KiB/90997msec); 0 zone resets clat (usec): min=878, max=179221, avg=26145.52, stdev=26298.60 lat (usec): min=879, max=179221, avg=26147.96, stdev=26299.18 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 1631], 20.00th=[ 3294], | 30.00th=[ 6063], 40.00th=[ 12256], 50.00th=[ 19530], 60.00th=[ 25035], | 70.00th=[ 34341], 80.00th=[ 45876], 90.00th=[ 62129], 95.00th=[ 77071], | 99.00th=[120062], 99.50th=[130548], 99.90th=[154141], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 7, max= 144, per=25.33%, avg=68.64, stdev=24.62, samples=180 iops : min= 1, max= 36, avg=16.52, stdev= 6.20, samples=180 lat (usec) : 50=0.26%, 100=1.73%, 250=0.07%, 1000=0.13% lat (msec) : 2=6.74%, 4=4.92%, 10=7.91%, 20=16.73%, 50=45.51% lat (msec) : 100=14.62%, 250=1.37%, 500=0.03% cpu : usr=0.08%, sys=6.69%, ctx=6557, 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=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=182865: Fri Jun 26 10:49:26 2026 read: IOPS=16, BW=64.0KiB/s (66.5kB/s)(5940KiB/91405msec) clat (usec): min=37, max=335514, avg=34081.83, stdev=22823.42 lat (usec): min=38, max=335516, avg=34084.39, stdev=22822.43 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8979], 10.00th=[ 13960], 20.00th=[ 18220], | 30.00th=[ 22152], 40.00th=[ 26084], 50.00th=[ 29492], 60.00th=[ 34341], | 70.00th=[ 40109], 80.00th=[ 46924], 90.00th=[ 58983], 95.00th=[ 72877], | 99.00th=[114820], 99.50th=[131597], 99.90th=[204473], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 15, max= 119, per=24.87%, avg=64.40, stdev=22.74, samples=181 iops : min= 3, max= 29, avg=15.47, stdev= 5.72, samples=181 write: IOPS=17, BW=69.4KiB/s (71.1kB/s)(6348KiB/91405msec); 0 zone resets clat (usec): min=866, max=162068, avg=25627.68, stdev=25916.84 lat (usec): min=867, max=162070, avg=25629.33, stdev=25917.38 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1303], 10.00th=[ 1483], 20.00th=[ 2802], | 30.00th=[ 5866], 40.00th=[ 11207], 50.00th=[ 18482], 60.00th=[ 24511], | 70.00th=[ 33424], 80.00th=[ 44303], 90.00th=[ 62653], 95.00th=[ 77071], | 99.00th=[113771], 99.50th=[125305], 99.90th=[145753], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 23, max= 144, per=25.34%, avg=68.67, stdev=24.78, samples=181 iops : min= 5, max= 36, avg=16.54, stdev= 6.28, samples=181 lat (usec) : 50=0.23%, 100=1.63%, 250=0.13%, 1000=0.10% lat (msec) : 2=7.52%, 4=5.47%, 10=7.39%, 20=15.95%, 50=45.12% lat (msec) : 100=14.88%, 250=1.56%, 500=0.03% cpu : usr=0.11%, sys=6.66%, ctx=6434, 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=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=182866: Fri Jun 26 10:49:26 2026 read: IOPS=16, BW=66.0KiB/s (67.6kB/s)(6028KiB/91291msec) clat (usec): min=37, max=183872, avg=33795.34, stdev=21955.66 lat (usec): min=38, max=183873, avg=33801.32, stdev=21955.44 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 112], 10.00th=[ 12649], 20.00th=[ 16909], | 30.00th=[ 20841], 40.00th=[ 24773], 50.00th=[ 30016], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 48497], 90.00th=[ 61604], 95.00th=[ 72877], | 99.00th=[112722], 99.50th=[121111], 99.90th=[137364], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 15, max= 134, per=25.23%, avg=65.34, stdev=20.35, samples=180 iops : min= 3, max= 33, avg=15.69, stdev= 5.11, samples=180 write: IOPS=17, BW=68.6KiB/s (70.2kB/s)(6260KiB/91291msec); 0 zone resets clat (usec): min=889, max=334421, avg=25702.40, stdev=27139.99 lat (usec): min=890, max=334424, avg=25704.02, stdev=27139.93 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1532], 20.00th=[ 2900], | 30.00th=[ 5407], 40.00th=[ 11469], 50.00th=[ 19530], 60.00th=[ 25560], | 70.00th=[ 33817], 80.00th=[ 43779], 90.00th=[ 58983], 95.00th=[ 73925], | 99.00th=[115868], 99.50th=[137364], 99.90th=[191890], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 15, max= 158, per=24.94%, avg=67.59, stdev=26.42, samples=180 iops : min= 3, max= 39, avg=16.28, stdev= 6.65, samples=180 lat (usec) : 50=0.55%, 100=1.89%, 250=0.13%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=6.93%, 4=5.53%, 10=7.49%, 20=16.34%, 50=43.59% lat (msec) : 100=15.56%, 250=1.69%, 500=0.03% cpu : usr=0.09%, sys=6.83%, ctx=6526, 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=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=182867: Fri Jun 26 10:49:26 2026 read: IOPS=16, BW=65.4KiB/s (67.0kB/s)(6052KiB/92480msec) clat (usec): min=20, max=233842, avg=33711.32, stdev=22718.52 lat (usec): min=20, max=233843, avg=33715.95, stdev=22718.83 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 469], 10.00th=[ 12387], 20.00th=[ 17433], | 30.00th=[ 21365], 40.00th=[ 25297], 50.00th=[ 28967], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 47449], 90.00th=[ 60031], 95.00th=[ 74974], | 99.00th=[106431], 99.50th=[127402], 99.90th=[227541], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 15, max= 151, per=25.02%, avg=64.81, stdev=22.96, samples=183 iops : min= 3, max= 37, avg=15.56, stdev= 5.74, samples=183 write: IOPS=16, BW=67.4KiB/s (69.0kB/s)(6236KiB/92480msec); 0 zone resets clat (usec): min=882, max=348141, avg=26524.33, stdev=26609.44 lat (usec): min=883, max=348143, avg=26526.00, stdev=26609.90 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1565], 20.00th=[ 3163], | 30.00th=[ 6456], 40.00th=[ 12911], 50.00th=[ 20841], 60.00th=[ 27395], | 70.00th=[ 33817], 80.00th=[ 44827], 90.00th=[ 63177], 95.00th=[ 77071], | 99.00th=[113771], 99.50th=[125305], 99.90th=[135267], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 15, max= 159, per=24.59%, avg=66.64, stdev=25.71, samples=183 iops : min= 3, max= 39, avg=16.03, stdev= 6.45, samples=183 lat (usec) : 50=0.49%, 100=1.89%, 250=0.07%, 500=0.07%, 1000=0.13% lat (msec) : 2=6.90%, 4=5.14%, 10=6.80%, 20=16.54%, 50=45.25% lat (msec) : 100=15.20%, 250=1.50%, 500=0.03% cpu : usr=0.09%, sys=6.68%, ctx=6585, 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=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=260KiB/s (266kB/s), 64.0KiB/s-66.0KiB/s (66.5kB/s-67.6kB/s), io=23.4MiB (24.6MB), run=90997-92480msec WRITE: bw=272KiB/s (278kB/s), 67.4KiB/s-69.4KiB/s (69.0kB/s-71.1kB/s), io=24.6MiB (25.7MB), run=90997-92480msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182859: Fri Jun 26 10:49:53 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5992KiB/119471msec) clat (msec): min=4, max=841, avg=30.25, stdev=33.76 lat (msec): min=4, max=841, avg=30.26, stdev=33.76 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 67], 95.00th=[ 89], | 99.00th=[ 136], 99.50th=[ 146], 99.90th=[ 182], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 175, per=25.40%, avg=50.54, stdev=35.22, samples=232 iops : min= 1, max= 43, avg=11.99, stdev= 8.84, samples=232 write: IOPS=13, BW=52.7KiB/s (53.0kB/s)(6296KiB/119471msec); 0 zone resets clat (msec): min=9, max=267, avg=46.88, stdev=33.67 lat (msec): min=9, max=267, avg=46.88, stdev=33.67 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 55], 80.00th=[ 70], 90.00th=[ 91], 95.00th=[ 112], | 99.00th=[ 157], 99.50th=[ 201], 99.90th=[ 245], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 7, max= 158, per=25.20%, avg=52.42, stdev=33.41, samples=235 iops : min= 1, max= 39, avg=12.46, stdev= 8.41, samples=235 lat (msec) : 10=6.93%, 20=26.63%, 50=40.98%, 100=19.76%, 250=5.63% lat (msec) : 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=2.74%, ctx=5011, 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=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=182860: Fri Jun 26 10:49:53 2026 read: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5940KiB/120508msec) clat (msec): min=3, max=865, avg=30.93, stdev=34.61 lat (msec): min=3, max=865, avg=30.93, stdev=34.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 46], 90.00th=[ 71], 95.00th=[ 88], | 99.00th=[ 128], 99.50th=[ 155], 99.90th=[ 211], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 175, per=25.00%, avg=49.76, stdev=36.36, samples=233 iops : min= 1, max= 43, avg=11.79, stdev= 9.12, samples=233 write: IOPS=13, BW=52.7KiB/s (53.9kB/s)(6348KiB/120508msec); 0 zone resets clat (msec): min=8, max=275, avg=46.77, stdev=33.61 lat (msec): min=8, max=275, avg=46.77, stdev=33.61 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 72], 90.00th=[ 93], 95.00th=[ 114], | 99.00th=[ 161], 99.50th=[ 194], 99.90th=[ 243], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 149, per=25.09%, avg=52.19, stdev=32.76, samples=237 iops : min= 1, max= 37, avg=12.40, stdev= 8.23, samples=237 lat (msec) : 4=0.03%, 10=7.26%, 20=26.56%, 50=39.49%, 100=21.42% lat (msec) : 250=5.18%, 500=0.03%, 1000=0.03% cpu : usr=0.06%, sys=2.66%, ctx=4936, 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=182861: Fri Jun 26 10:49:53 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6028KiB/119772msec) clat (msec): min=4, max=216, avg=30.29, stdev=27.83 lat (msec): min=4, max=216, avg=30.30, stdev=27.83 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 69], 95.00th=[ 85], | 99.00th=[ 142], 99.50th=[ 157], 99.90th=[ 201], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 7, max= 167, per=25.40%, avg=50.55, stdev=34.46, samples=234 iops : min= 1, max= 41, avg=11.99, stdev= 8.67, samples=234 write: IOPS=13, BW=52.3KiB/s (53.5kB/s)(6260KiB/119772msec); 0 zone resets clat (msec): min=9, max=885, avg=47.14, stdev=40.27 lat (msec): min=9, max=885, avg=47.15, stdev=40.28 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 55], 80.00th=[ 70], 90.00th=[ 95], 95.00th=[ 120], | 99.00th=[ 157], 99.50th=[ 190], 99.90th=[ 236], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 165, per=25.02%, avg=52.04, stdev=34.75, samples=236 iops : min= 1, max= 41, avg=12.36, stdev= 8.72, samples=236 lat (msec) : 10=7.19%, 20=27.31%, 50=39.84%, 100=19.50%, 250=6.12% lat (msec) : 1000=0.03% cpu : usr=0.07%, sys=2.75%, ctx=4997, 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=182862: Fri Jun 26 10:49:53 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6052KiB/120400msec) clat (msec): min=4, max=204, avg=30.24, stdev=28.12 lat (msec): min=4, max=204, avg=30.24, stdev=28.12 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 69], 95.00th=[ 88], | 99.00th=[ 140], 99.50th=[ 153], 99.90th=[ 188], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 7, max= 192, per=25.43%, avg=50.62, stdev=35.87, samples=234 iops : min= 1, max= 48, avg=12.00, stdev= 9.01, samples=234 write: IOPS=12, BW=51.8KiB/s (53.0kB/s)(6236KiB/120400msec); 0 zone resets clat (msec): min=8, max=874, avg=47.66, stdev=40.20 lat (msec): min=8, max=874, avg=47.66, stdev=40.20 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 71], 90.00th=[ 94], 95.00th=[ 117], | 99.00th=[ 157], 99.50th=[ 199], 99.90th=[ 284], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 175, per=24.74%, avg=51.45, stdev=34.34, samples=237 iops : min= 1, max= 43, avg=12.21, stdev= 8.62, samples=237 lat (msec) : 10=8.40%, 20=26.33%, 50=38.77%, 100=20.61%, 250=5.79% lat (msec) : 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=2.72%, ctx=5030, 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=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=199KiB/s (204kB/s), 49.3KiB/s-50.3KiB/s (50.5kB/s-51.5kB/s), io=23.4MiB (24.6MB), run=119471-120508msec WRITE: bw=209KiB/s (214kB/s), 51.8KiB/s-52.7KiB/s (53.0kB/s-53.0kB/s), io=24.6MiB (25.7MB), run=119471-120508msec 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=182899: Fri Jun 26 10:50:28 2026 read: IOPS=14, BW=229KiB/s (234kB/s)(5920KiB/25886msec) clat (usec): min=35, max=142022, avg=36567.43, stdev=22350.97 lat (usec): min=35, max=142023, avg=36568.53, stdev=22351.01 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 13173], 20.00th=[ 20579], | 30.00th=[ 24511], 40.00th=[ 28967], 50.00th=[ 33424], 60.00th=[ 36963], | 70.00th=[ 43254], 80.00th=[ 52167], 90.00th=[ 64226], 95.00th=[ 78119], | 99.00th=[113771], 99.50th=[121111], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 95, max= 542, per=24.66%, avg=228.06, stdev=81.28, samples=51 iops : min= 5, max= 33, avg=13.51, stdev= 5.10, samples=51 write: IOPS=15, BW=246KiB/s (252kB/s)(6368KiB/25886msec); 0 zone resets clat (usec): min=1259, max=159548, avg=30655.19, stdev=27535.71 lat (usec): min=1261, max=159550, avg=30657.39, stdev=27536.03 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2040], 10.00th=[ 3064], 20.00th=[ 5211], | 30.00th=[ 11076], 40.00th=[ 17695], 50.00th=[ 22414], 60.00th=[ 29754], | 70.00th=[ 39060], 80.00th=[ 54264], 90.00th=[ 71828], 95.00th=[ 86508], | 99.00th=[115868], 99.50th=[128451], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 95, max= 478, per=25.18%, avg=245.00, stdev=87.33, samples=51 iops : min= 5, max= 29, avg=14.57, stdev= 5.51, samples=51 lat (usec) : 50=0.65%, 100=2.73% lat (msec) : 2=2.34%, 4=5.21%, 10=7.29%, 20=14.06%, 50=45.44% lat (msec) : 100=20.83%, 250=1.43% cpu : usr=0.08%, sys=7.18%, ctx=1803, 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=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=182900: Fri Jun 26 10:50:28 2026 read: IOPS=14, BW=230KiB/s (235kB/s)(5744KiB/25015msec) clat (usec): min=53, max=178286, avg=37784.99, stdev=25027.08 lat (usec): min=55, max=178287, avg=37793.51, stdev=25034.72 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 90], 10.00th=[ 15008], 20.00th=[ 20579], | 30.00th=[ 24249], 40.00th=[ 29492], 50.00th=[ 33162], 60.00th=[ 38011], | 70.00th=[ 43779], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 83362], | 99.00th=[135267], 99.50th=[143655], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 94, max= 416, per=24.69%, avg=228.37, stdev=77.69, samples=49 iops : min= 5, max= 26, avg=13.51, stdev= 4.87, samples=49 write: IOPS=16, BW=262KiB/s (268kB/s)(6544KiB/25015msec); 0 zone resets clat (usec): min=1309, max=132166, avg=27877.61, stdev=27518.30 lat (usec): min=1312, max=132167, avg=27879.72, stdev=27518.54 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 1958], 10.00th=[ 2376], 20.00th=[ 4146], | 30.00th=[ 7701], 40.00th=[ 13698], 50.00th=[ 19530], 60.00th=[ 26084], | 70.00th=[ 34341], 80.00th=[ 50594], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[121111], 99.50th=[126354], 99.90th=[132645], 99.95th=[132645], | 99.99th=[132645] bw ( KiB/s): min= 63, max= 509, per=26.70%, avg=259.82, stdev=96.52, samples=49 iops : min= 3, max= 31, avg=15.49, stdev= 6.08, samples=49 lat (usec) : 100=2.47%, 250=0.13% lat (msec) : 2=3.12%, 4=6.90%, 10=8.72%, 20=14.84%, 50=42.84% lat (msec) : 100=18.10%, 250=2.86% cpu : usr=0.07%, sys=7.52%, ctx=1713, 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=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=182901: Fri Jun 26 10:50:28 2026 read: IOPS=15, BW=255KiB/s (262kB/s)(6256KiB/24490msec) clat (usec): min=36, max=146473, avg=35100.14, stdev=21502.70 lat (usec): min=36, max=146474, avg=35101.78, stdev=21503.56 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 13435], 20.00th=[ 18744], | 30.00th=[ 23462], 40.00th=[ 27395], 50.00th=[ 31327], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 51119], 90.00th=[ 62129], 95.00th=[ 71828], | 99.00th=[103285], 99.50th=[120062], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 96, max= 415, per=27.72%, avg=256.40, stdev=72.38, samples=48 iops : min= 6, max= 25, avg=15.27, stdev= 4.49, samples=48 write: IOPS=15, BW=246KiB/s (252kB/s)(6032KiB/24490msec); 0 zone resets clat (usec): min=1225, max=159560, avg=28229.29, stdev=26149.30 lat (usec): min=1227, max=159563, avg=28231.57, stdev=26149.44 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1926], 10.00th=[ 2835], 20.00th=[ 5276], | 30.00th=[ 9241], 40.00th=[ 15401], 50.00th=[ 21103], 60.00th=[ 27395], | 70.00th=[ 36439], 80.00th=[ 46400], 90.00th=[ 63701], 95.00th=[ 81265], | 99.00th=[119014], 99.50th=[129500], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 95, max= 413, per=24.91%, avg=242.37, stdev=83.92, samples=48 iops : min= 5, max= 25, avg=14.40, stdev= 5.31, samples=48 lat (usec) : 50=0.26%, 100=3.12%, 250=0.13%, 500=0.13% lat (msec) : 2=2.73%, 4=5.08%, 10=8.07%, 20=15.49%, 50=45.18% lat (msec) : 100=18.23%, 250=1.56% cpu : usr=0.06%, sys=7.26%, ctx=1726, 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=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=182902: Fri Jun 26 10:50:28 2026 read: IOPS=15, BW=244KiB/s (249kB/s)(6032KiB/24759msec) clat (usec): min=43, max=167654, avg=34941.95, stdev=22153.67 lat (usec): min=44, max=167655, avg=34943.08, stdev=22153.68 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 141], 20.00th=[ 19006], | 30.00th=[ 22938], 40.00th=[ 27657], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 43779], 80.00th=[ 50070], 90.00th=[ 62653], 95.00th=[ 72877], | 99.00th=[104334], 99.50th=[109577], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 96, max= 383, per=26.26%, avg=242.92, stdev=71.77, samples=48 iops : min= 6, max= 23, avg=14.44, stdev= 4.45, samples=48 write: IOPS=15, BW=253KiB/s (259kB/s)(6256KiB/24759msec); 0 zone resets clat (usec): min=1412, max=178840, avg=29235.10, stdev=29099.70 lat (usec): min=1413, max=178843, avg=29251.95, stdev=29129.90 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 1975], 10.00th=[ 2573], 20.00th=[ 4752], | 30.00th=[ 8455], 40.00th=[ 13566], 50.00th=[ 18744], 60.00th=[ 27657], | 70.00th=[ 38536], 80.00th=[ 52167], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[124257], 99.50th=[160433], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 63, max= 478, per=25.85%, avg=251.52, stdev=93.62, samples=48 iops : min= 3, max= 29, avg=14.98, stdev= 5.87, samples=48 lat (usec) : 50=0.13%, 100=4.56%, 250=0.26%, 1000=0.13% lat (msec) : 2=2.60%, 4=5.08%, 10=10.42%, 20=14.45%, 50=41.93% lat (msec) : 100=18.49%, 250=1.95% cpu : usr=0.09%, sys=7.37%, ctx=1739, 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=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=925KiB/s (947kB/s), 229KiB/s-255KiB/s (234kB/s-262kB/s), io=23.4MiB (24.5MB), run=24490-25886msec WRITE: bw=973KiB/s (997kB/s), 246KiB/s-262KiB/s (252kB/s-268kB/s), io=24.6MiB (25.8MB), run=24490-25886msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182904: Fri Jun 26 10:50:36 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(5920KiB/34463msec) clat (msec): min=6, max=191, avg=34.33, stdev=25.20 lat (msec): min=6, max=191, avg=34.33, stdev=25.19 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 47], 90.00th=[ 68], 95.00th=[ 88], | 99.00th=[ 129], 99.50th=[ 140], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 31, max= 477, per=24.74%, avg=171.19, stdev=91.83, samples=68 iops : min= 1, max= 29, avg= 9.94, stdev= 5.77, samples=68 write: IOPS=11, BW=185KiB/s (189kB/s)(6368KiB/34463msec); 0 zone resets clat (msec): min=10, max=217, avg=54.26, stdev=34.40 lat (msec): min=10, max=217, avg=54.28, stdev=34.41 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 53], | 70.00th=[ 62], 80.00th=[ 75], 90.00th=[ 104], 95.00th=[ 122], | 99.00th=[ 190], 99.50th=[ 213], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 413, per=25.24%, avg=183.72, stdev=80.05, samples=68 iops : min= 1, max= 25, avg=10.74, stdev= 5.07, samples=68 lat (msec) : 10=1.82%, 20=15.10%, 50=52.47%, 100=23.44%, 250=7.16% cpu : usr=0.04%, sys=2.75%, ctx=1281, 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=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=182905: Fri Jun 26 10:50:36 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34592msec) clat (msec): min=5, max=195, avg=34.61, stdev=27.35 lat (msec): min=5, max=195, avg=34.61, stdev=27.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 49], 90.00th=[ 68], 95.00th=[ 95], | 99.00th=[ 134], 99.50th=[ 155], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 31, max= 445, per=24.39%, avg=168.79, stdev=103.49, samples=66 iops : min= 1, max= 27, avg= 9.79, stdev= 6.55, samples=66 write: IOPS=11, BW=189KiB/s (194kB/s)(6544KiB/34592msec); 0 zone resets clat (msec): min=8, max=217, avg=53.98, stdev=35.21 lat (msec): min=8, max=217, avg=53.98, stdev=35.21 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 52], | 70.00th=[ 66], 80.00th=[ 79], 90.00th=[ 104], 95.00th=[ 127], | 99.00th=[ 167], 99.50th=[ 192], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 448, per=25.63%, avg=186.56, stdev=93.75, samples=68 iops : min= 1, max= 28, avg=10.91, stdev= 5.94, samples=68 lat (msec) : 10=2.60%, 20=17.58%, 50=48.83%, 100=22.92%, 250=8.07% cpu : usr=0.05%, sys=2.57%, ctx=1245, 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=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=182906: Fri Jun 26 10:50:36 2026 read: IOPS=11, BW=182KiB/s (187kB/s)(6256KiB/34300msec) clat (msec): min=7, max=186, avg=36.58, stdev=29.51 lat (msec): min=7, max=186, avg=36.58, stdev=29.51 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 73], 95.00th=[ 103], | 99.00th=[ 157], 99.50th=[ 176], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 31, max= 539, per=26.51%, avg=183.47, stdev=107.96, samples=66 iops : min= 1, max= 33, avg=10.70, stdev= 6.81, samples=66 write: IOPS=10, BW=176KiB/s (180kB/s)(6032KiB/34300msec); 0 zone resets clat (msec): min=12, max=213, avg=52.60, stdev=32.44 lat (msec): min=12, max=213, avg=52.60, stdev=32.44 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 72], 90.00th=[ 96], 95.00th=[ 116], | 99.00th=[ 186], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 31, max= 413, per=23.60%, avg=171.78, stdev=79.54, samples=67 iops : min= 1, max= 25, avg= 9.97, stdev= 5.04, samples=67 lat (msec) : 10=1.43%, 20=18.49%, 50=48.18%, 100=24.87%, 250=7.03% cpu : usr=0.06%, sys=2.59%, ctx=1267, 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=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=182907: Fri Jun 26 10:50:36 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33847msec) clat (msec): min=5, max=255, avg=36.65, stdev=29.96 lat (msec): min=5, max=255, avg=36.65, stdev=29.96 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 73], 95.00th=[ 97], | 99.00th=[ 155], 99.50th=[ 180], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 62, max= 448, per=25.35%, avg=175.44, stdev=90.79, samples=66 iops : min= 3, max= 28, avg=10.21, stdev= 5.78, samples=66 write: IOPS=11, BW=185KiB/s (189kB/s)(6256KiB/33847msec); 0 zone resets clat (msec): min=11, max=166, avg=50.78, stdev=30.13 lat (msec): min=11, max=166, avg=50.78, stdev=30.12 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 61], 80.00th=[ 77], 90.00th=[ 92], 95.00th=[ 113], | 99.00th=[ 153], 99.50th=[ 159], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 31, max= 477, per=25.14%, avg=183.02, stdev=93.42, samples=66 iops : min= 1, max= 29, avg=10.68, stdev= 5.87, samples=66 lat (msec) : 10=1.56%, 20=18.23%, 50=51.43%, 100=22.79%, 250=5.86% lat (msec) : 500=0.13% cpu : usr=0.07%, sys=2.79%, ctx=1279, 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=692KiB/s (709kB/s), 166KiB/s-182KiB/s (170kB/s-187kB/s), io=23.4MiB (24.5MB), run=33847-34592msec WRITE: bw=728KiB/s (746kB/s), 176KiB/s-189KiB/s (180kB/s-194kB/s), io=24.6MiB (25.8MB), run=33847-34592msec 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=182922: Fri Jun 26 10:50:49 2026 read: IOPS=2, BW=2725KiB/s (2791kB/s)(7168KiB/2630msec) clat (usec): min=509, max=310385, avg=181785.14, stdev=95275.91 lat (usec): min=510, max=310387, avg=182224.22, stdev=95254.23 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[147850], | 30.00th=[177210], 40.00th=[177210], 50.00th=[187696], 60.00th=[212861], | 70.00th=[212861], 80.00th=[235930], 90.00th=[312476], 95.00th=[312476], | 99.00th=[312476], 99.50th=[312476], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 2043, max= 4047, per=59.95%, avg=2998.00, stdev=1005.30, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1947KiB/s (1993kB/s)(5120KiB/2630msec); 0 zone resets clat (msec): min=115, max=308, avg=242.66, stdev=75.83 lat (msec): min=115, max=308, avg=242.74, stdev=75.84 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 2043, max= 6131, per=58.38%, avg=4087.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=21.07%, ctx=217, 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=182923: Fri Jun 26 10:50:49 2026 read: IOPS=0, BW=500KiB/s (512kB/s)(2048KiB/4095msec) clat (usec): min=783, max=439451, avg=220117.16, stdev=310185.09 lat (usec): min=784, max=439455, avg=220120.04, stdev=310187.14 clat percentiles (usec): | 1.00th=[ 783], 5.00th=[ 783], 10.00th=[ 783], 20.00th=[ 783], | 30.00th=[ 783], 40.00th=[ 783], 50.00th=[ 783], 60.00th=[438305], | 70.00th=[438305], 80.00th=[438305], 90.00th=[438305], 95.00th=[438305], | 99.00th=[438305], 99.50th=[438305], 99.90th=[438305], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 1430, max= 2035, per=34.64%, avg=1732.50, stdev=427.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2501KiB/s (2561kB/s)(10.0MiB/4095msec); 0 zone resets clat (msec): min=104, max=660, avg=343.58, stdev=195.26 lat (msec): min=104, max=660, avg=343.73, stdev=195.26 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 251], 50.00th=[ 253], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 567], 90.00th=[ 575], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2043, max= 6107, per=58.01%, avg=4061.00, stdev=1659.20, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 1.63, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=15.17%, ctx=128, 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=182924: Fri Jun 26 10:50:49 2026 read: IOPS=1, BW=1789KiB/s (1832kB/s)(6144KiB/3434msec) clat (usec): min=654, max=398364, avg=183730.45, stdev=137432.85 lat (usec): min=655, max=398364, avg=183731.57, stdev=137432.51 clat percentiles (usec): | 1.00th=[ 652], 5.00th=[ 652], 10.00th=[ 652], 20.00th=[108528], | 30.00th=[108528], 40.00th=[122160], 50.00th=[122160], 60.00th=[233833], | 70.00th=[238027], 80.00th=[238027], 90.00th=[396362], 95.00th=[396362], | 99.00th=[396362], 99.50th=[396362], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 2023, max= 4039, per=50.69%, avg=2535.00, stdev=1002.70, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1789KiB/s (1832kB/s)(6144KiB/3434msec); 0 zone resets clat (msec): min=180, max=730, avg=383.04, stdev=206.03 lat (msec): min=180, max=730, avg=383.22, stdev=206.11 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 518], 80.00th=[ 518], 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= 1395, max= 2043, per=27.25%, avg=1907.80, stdev=286.78, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=16.20%, ctx=129, 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=182925: Fri Jun 26 10:50:49 2026 read: IOPS=1, BW=1495KiB/s (1531kB/s)(5120KiB/3425msec) clat (usec): min=512, max=535263, avg=158429.60, stdev=219978.19 lat (usec): min=513, max=535265, avg=158431.04, stdev=219978.59 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 1909], 40.00th=[ 1909], 50.00th=[117965], 60.00th=[117965], | 70.00th=[137364], 80.00th=[137364], 90.00th=[534774], 95.00th=[534774], | 99.00th=[534774], 99.50th=[534774], 99.90th=[534774], 99.95th=[534774], | 99.99th=[534774] bw ( KiB/s): min= 4039, max= 4071, per=81.08%, avg=4055.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2093KiB/s (2143kB/s)(7168KiB/3425msec); 0 zone resets clat (msec): min=129, max=538, avg=346.41, stdev=151.41 lat (msec): min=129, max=538, avg=346.49, stdev=151.42 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 178], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 342], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 485], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2023, max= 4087, per=36.38%, avg=2547.00, stdev=1026.70, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=14.66%, ctx=148, 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=5001KiB/s (5121kB/s), 500KiB/s-2725KiB/s (512kB/s-2791kB/s), io=20.0MiB (20.0MB), run=2630-4095msec WRITE: bw=7002KiB/s (7170kB/s), 1789KiB/s-2501KiB/s (1832kB/s-2561kB/s), io=28.0MiB (29.4MB), run=2630-4095msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182918: Fri Jun 26 10:50:49 2026 read: IOPS=1, BW=1843KiB/s (1887kB/s)(7168KiB/3889msec) clat (msec): min=46, max=535, avg=212.59, stdev=175.04 lat (msec): min=46, max=535, avg=212.59, stdev=175.04 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 99], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 146], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 372], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 1939, max= 4087, per=61.50%, avg=3037.00, stdev=1208.57, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1317KiB/s (1348kB/s)(5120KiB/3889msec); 0 zone resets clat (msec): min=267, max=593, avg=447.56, stdev=123.80 lat (msec): min=267, max=593, avg=447.68, stdev=123.78 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 527], 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= 1889, max= 2043, per=28.58%, avg=1975.75, stdev=79.27, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=4.53%, ctx=64, 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=182919: Fri Jun 26 10:50:49 2026 read: IOPS=0, BW=496KiB/s (508kB/s)(2048KiB/4130msec) clat (msec): min=115, max=398, avg=257.33, stdev=200.12 lat (msec): min=115, max=398, avg=257.33, stdev=200.12 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1928, max= 2039, per=40.17%, avg=1983.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2479KiB/s (2539kB/s)(10.0MiB/4130msec); 0 zone resets clat (msec): min=145, max=766, avg=333.61, stdev=180.54 lat (msec): min=145, max=766, avg=333.74, stdev=180.53 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 180], | 30.00th=[ 199], 40.00th=[ 205], 50.00th=[ 342], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 388], 90.00th=[ 422], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1889, max= 4087, per=43.41%, avg=3000.83, stdev=1110.13, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=50.00%, 1000=8.33% cpu : usr=0.02%, sys=6.47%, ctx=99, 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=182920: Fri Jun 26 10:50:49 2026 read: IOPS=1, BW=1482KiB/s (1517kB/s)(6144KiB/4147msec) clat (msec): min=53, max=990, avg=328.00, stdev=343.11 lat (msec): min=53, max=990, avg=328.01, stdev=343.11 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 78], | 30.00th=[ 78], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 266], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1928, max= 4087, per=51.14%, avg=2525.25, stdev=1042.58, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1482KiB/s (1517kB/s)(6144KiB/4147msec); 0 zone resets clat (msec): min=133, max=802, avg=351.97, stdev=248.60 lat (msec): min=133, max=802, avg=352.15, stdev=248.52 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 275], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1835, max= 4087, per=34.52%, avg=2386.40, stdev=954.57, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 1000=16.67% cpu : usr=0.00%, sys=6.30%, ctx=89, 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=182921: Fri Jun 26 10:50:49 2026 read: IOPS=1, BW=1522KiB/s (1559kB/s)(5120KiB/3363msec) clat (msec): min=93, max=412, avg=200.60, stdev=132.14 lat (msec): min=93, max=412, avg=200.60, stdev=132.14 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 128], 60.00th=[ 128], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 1889, max= 4087, per=54.13%, avg=2673.00, stdev=1226.98, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2131KiB/s (2183kB/s)(7168KiB/3363msec); 0 zone resets clat (msec): min=94, max=636, avg=320.62, stdev=198.75 lat (msec): min=94, max=636, avg=320.72, stdev=198.75 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 138], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 330], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 451], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1889, max= 4079, per=36.19%, avg=2501.75, stdev=1053.47, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=4.28%, ctx=70, 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=4939KiB/s (5057kB/s), 496KiB/s-1843KiB/s (508kB/s-1887kB/s), io=20.0MiB (20.0MB), run=3363-4147msec WRITE: bw=6914KiB/s (7080kB/s), 1317KiB/s-2479KiB/s (1348kB/s-2539kB/s), io=28.0MiB (29.4MB), run=3363-4147msec 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=182936: Fri Jun 26 10:51:00 2026 read: IOPS=1, BW=4791KiB/s (4906kB/s)(12.0MiB/2565msec) clat (msec): min=441, max=1018, avg=815.48, stdev=324.34 lat (msec): min=441, max=1018, avg=815.48, stdev=324.34 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8094, max= 8192, per=100.00%, avg=8143.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.15%, ctx=89, 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=182938: Fri Jun 26 10:51:00 2026 read: IOPS=0, BW=1535KiB/s (1572kB/s)(4096KiB/2668msec) clat (nsec): min=1483.9M, max=1483.9M, avg=1483940877.00, stdev= 0.00 lat (nsec): min=1483.9M, max=1483.9M, avg=1483943802.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1485], 5.00th=[ 1485], 10.00th=[ 1485], 20.00th=[ 1485], | 30.00th=[ 1485], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3070KiB/s (3144kB/s)(8192KiB/2668msec); 0 zone resets clat (msec): min=238, max=734, avg=486.28, stdev=351.10 lat (msec): min=238, max=734, avg=486.67, stdev=350.94 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.60%, ctx=41, 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=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=182940: Fri Jun 26 10:51:00 2026 write: IOPS=1, BW=5260KiB/s (5387kB/s)(12.0MiB/2336msec); 0 zone resets clat (msec): min=480, max=891, avg=706.57, stdev=208.59 lat (msec): min=481, max=892, avg=707.74, stdev=208.18 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8175, max= 8192, per=66.64%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=12.51%, ctx=104, 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=182941: Fri Jun 26 10:51:00 2026 write: IOPS=1, BW=5596KiB/s (5730kB/s)(12.0MiB/2196msec); 0 zone resets clat (msec): min=369, max=1195, avg=652.61, stdev=470.23 lat (msec): min=369, max=1196, avg=653.20, stdev=470.48 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 5475, max= 8192, per=55.64%, avg=6833.50, stdev=1921.21, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.92%, ctx=53, 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=6141KiB/s (6288kB/s), 1535KiB/s-4791KiB/s (1572kB/s-4906kB/s), io=16.0MiB (16.8MB), run=2565-2668msec WRITE: bw=11.0MiB/s (12.6MB/s), 3070KiB/s-5596KiB/s (3144kB/s-5730kB/s), io=32.0MiB (33.6MB), run=2196-2668msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182934: Fri Jun 26 10:51:00 2026 read: IOPS=1, BW=6234KiB/s (6384kB/s)(12.0MiB/1971msec) clat (msec): min=509, max=695, avg=628.47, stdev=103.59 lat (msec): min=509, max=695, avg=628.47, stdev=103.59 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 8062, max= 8126, per=97.38%, avg=8094.00, stdev=45.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=18.07%, ctx=673, majf=0, minf=7 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=182935: Fri Jun 26 10:51:00 2026 read: IOPS=0, BW=2243KiB/s (2297kB/s)(4096KiB/1826msec) clat (nsec): min=650950k, max=650950k, avg=650950136.00, stdev= 0.00 lat (nsec): min=650951k, max=650951k, avg=650951277.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 8110, max= 8110, per=97.57%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4486KiB/s (4594kB/s)(8192KiB/1826msec); 0 zone resets clat (msec): min=417, max=628, avg=523.00, stdev=148.69 lat (msec): min=418, max=628, avg=523.57, stdev=148.83 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 8062, max= 8062, per=68.75%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=10.74%, ctx=98, 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=182937: Fri Jun 26 10:51:00 2026 write: IOPS=1, BW=4398KiB/s (4504kB/s)(12.0MiB/2794msec); 0 zone resets clat (msec): min=439, max=1363, avg=863.42, stdev=466.66 lat (msec): min=439, max=1364, avg=863.83, stdev=466.75 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8126, max= 8192, per=69.57%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.22%, ctx=52, majf=0, minf=7 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=182939: Fri Jun 26 10:51:00 2026 write: IOPS=1, BW=6150KiB/s (6298kB/s)(12.0MiB/1998msec); 0 zone resets clat (msec): min=166, max=1307, avg=607.63, stdev=613.23 lat (msec): min=166, max=1308, avg=608.02, stdev=613.29 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min=11175, max=11175, per=95.29%, avg=11175.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=8.31%, ctx=66, 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 Run status group 0 (all jobs): READ: bw=8313KiB/s (8512kB/s), 2243KiB/s-6234KiB/s (2297kB/s-6384kB/s), io=16.0MiB (16.8MB), run=1826-1971msec WRITE: bw=11.5MiB/s (12.0MB/s), 4398KiB/s-6150KiB/s (4504kB/s-6298kB/s), io=32.0MiB (33.6MB), run=1826-2794msec