== sanity test 398b: DIO and buffer IO race ============== 21:41:31 (1784943691) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.24908 s, 15.5 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=181136: Fri Jul 24 21:42:35 2026 read: IOPS=27, BW=109KiB/s (112kB/s)(5992KiB/54830msec) clat (usec): min=47, max=730479, avg=19805.89, stdev=21222.85 lat (usec): min=48, max=730480, avg=19806.66, stdev=21222.84 clat percentiles (usec): | 1.00th=[ 94], 5.00th=[ 8094], 10.00th=[ 9372], 20.00th=[ 11469], | 30.00th=[ 13304], 40.00th=[ 15270], 50.00th=[ 17433], 60.00th=[ 19792], | 70.00th=[ 22676], 80.00th=[ 25822], 90.00th=[ 31327], 95.00th=[ 38011], | 99.00th=[ 53740], 99.50th=[ 61080], 99.90th=[137364], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 6, max= 175, per=24.97%, avg=109.14, stdev=28.60, samples=109 iops : min= 1, max= 43, avg=26.89, stdev= 7.14, samples=109 write: IOPS=28, BW=115KiB/s (118kB/s)(6296KiB/54830msec); 0 zone resets clat (usec): min=753, max=92954, avg=15853.75, stdev=12775.76 lat (usec): min=753, max=92955, avg=15854.80, stdev=12775.79 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2376], 10.00th=[ 3032], 20.00th=[ 3982], | 30.00th=[ 6587], 40.00th=[10552], 50.00th=[13435], 60.00th=[15795], | 70.00th=[19268], 80.00th=[25035], 90.00th=[33817], 95.00th=[41157], | 99.00th=[57934], 99.50th=[63177], 99.90th=[77071], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 32, max= 224, per=25.32%, avg=115.73, stdev=31.53, samples=108 iops : min= 8, max= 56, avg=28.54, stdev= 7.89, samples=108 lat (usec) : 50=0.03%, 100=0.59%, 250=0.59%, 500=0.03%, 1000=0.13% lat (msec) : 2=1.43%, 4=8.79%, 10=14.10%, 20=40.53%, 50=32.00% lat (msec) : 100=1.73%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=22.86%, ctx=8957, 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=181137: Fri Jul 24 21:42:35 2026 read: IOPS=27, BW=108KiB/s (111kB/s)(5940KiB/54925msec) clat (usec): min=30, max=103040, avg=19455.88, stdev=10532.70 lat (usec): min=30, max=103042, avg=19456.62, stdev=10532.72 clat percentiles (usec): | 1.00th=[ 105], 5.00th=[ 8356], 10.00th=[ 9634], 20.00th=[ 11207], | 30.00th=[ 12911], 40.00th=[ 14877], 50.00th=[ 17433], 60.00th=[ 19792], | 70.00th=[ 22676], 80.00th=[ 26084], 90.00th=[ 31851], 95.00th=[ 38536], | 99.00th=[ 55837], 99.50th=[ 63177], 99.90th=[ 84411], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 6, max= 167, per=24.69%, avg=107.89, stdev=28.74, samples=109 iops : min= 1, max= 41, avg=26.58, stdev= 7.15, samples=109 write: IOPS=28, BW=116KiB/s (118kB/s)(6348KiB/54925msec); 0 zone resets clat (usec): min=864, max=713617, avg=16278.33, stdev=21484.73 lat (usec): min=864, max=713618, avg=16279.20, stdev=21484.76 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 2245], 10.00th=[ 3032], 20.00th=[ 4228], | 30.00th=[ 6652], 40.00th=[ 10552], 50.00th=[ 13173], 60.00th=[ 15926], | 70.00th=[ 20317], 80.00th=[ 25822], 90.00th=[ 33162], 95.00th=[ 40633], | 99.00th=[ 54264], 99.50th=[ 63701], 99.90th=[ 79168], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 63, max= 224, per=25.42%, avg=116.17, stdev=31.35, samples=108 iops : min= 15, max= 56, avg=28.65, stdev= 7.89, samples=108 lat (usec) : 50=0.03%, 100=0.33%, 250=0.46%, 500=0.03%, 1000=0.23% lat (msec) : 2=1.76%, 4=7.58%, 10=15.17%, 20=39.65%, 50=32.85% lat (msec) : 100=1.86%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=22.98%, ctx=8996, majf=0, minf=18 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=181138: Fri Jul 24 21:42:35 2026 read: IOPS=28, BW=113KiB/s (116kB/s)(6028KiB/53169msec) clat (usec): min=48, max=88509, avg=19023.37, stdev=10923.93 lat (usec): min=49, max=88510, avg=19024.58, stdev=10924.09 clat percentiles (usec): | 1.00th=[ 92], 5.00th=[ 7635], 10.00th=[ 9110], 20.00th=[10814], | 30.00th=[12518], 40.00th=[14353], 50.00th=[16909], 60.00th=[19530], | 70.00th=[22414], 80.00th=[25822], 90.00th=[31589], 95.00th=[38536], | 99.00th=[58983], 99.50th=[70779], 99.90th=[84411], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 56, max= 176, per=26.16%, avg=114.34, stdev=24.80, samples=104 iops : min= 14, max= 44, avg=28.19, stdev= 6.24, samples=104 write: IOPS=29, BW=118KiB/s (121kB/s)(6260KiB/53169msec); 0 zone resets clat (usec): min=788, max=711661, avg=15527.25, stdev=21339.82 lat (usec): min=789, max=711662, avg=15529.06, stdev=21339.46 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 2114], 10.00th=[ 2868], 20.00th=[ 3720], | 30.00th=[ 5866], 40.00th=[ 9765], 50.00th=[ 12518], 60.00th=[ 15926], | 70.00th=[ 19268], 80.00th=[ 25035], 90.00th=[ 31851], 95.00th=[ 36963], | 99.00th=[ 51643], 99.50th=[ 58459], 99.90th=[106431], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 40, max= 199, per=25.96%, avg=118.63, stdev=34.69, samples=104 iops : min= 10, max= 49, avg=29.27, stdev= 8.62, samples=104 lat (usec) : 50=0.03%, 100=0.55%, 250=0.68%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=2.05%, 4=8.85%, 10=15.36%, 20=39.13%, 50=31.51% lat (msec) : 100=1.53%, 250=0.03%, 750=0.03% cpu : usr=0.12%, sys=23.23%, ctx=8729, 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=181139: Fri Jul 24 21:42:35 2026 read: IOPS=27, BW=110KiB/s (113kB/s)(6052KiB/54940msec) clat (usec): min=37, max=82078, avg=19502.69, stdev=10310.31 lat (usec): min=40, max=82079, avg=19503.58, stdev=10310.29 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 7832], 10.00th=[ 9110], 20.00th=[11076], | 30.00th=[13304], 40.00th=[15664], 50.00th=[17957], 60.00th=[20317], | 70.00th=[22938], 80.00th=[26346], 90.00th=[32113], 95.00th=[38536], | 99.00th=[53740], 99.50th=[58459], 99.90th=[80217], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 47, max= 183, per=25.40%, avg=110.98, stdev=25.52, samples=108 iops : min= 11, max= 45, avg=27.35, stdev= 6.41, samples=108 write: IOPS=28, BW=114KiB/s (116kB/s)(6236KiB/54940msec); 0 zone resets clat (usec): min=888, max=723997, avg=16191.42, stdev=21919.30 lat (usec): min=889, max=723998, avg=16192.58, stdev=21919.43 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 2474], 10.00th=[ 3130], 20.00th=[ 4113], | 30.00th=[ 6390], 40.00th=[ 10290], 50.00th=[ 12518], 60.00th=[ 15795], | 70.00th=[ 20055], 80.00th=[ 25297], 90.00th=[ 33817], 95.00th=[ 40633], | 99.00th=[ 55313], 99.50th=[ 62129], 99.90th=[ 79168], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 48, max= 176, per=24.98%, avg=114.16, stdev=28.22, samples=108 iops : min= 12, max= 44, avg=28.15, stdev= 6.97, samples=108 lat (usec) : 50=0.13%, 100=0.52%, 250=0.49%, 500=0.03%, 1000=0.07% lat (msec) : 2=1.53%, 4=8.30%, 10=15.79%, 20=37.37%, 50=34.02% lat (msec) : 100=1.73%, 750=0.03% cpu : usr=0.12%, sys=23.14%, ctx=9012, 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=437KiB/s (448kB/s), 108KiB/s-113KiB/s (111kB/s-116kB/s), io=23.4MiB (24.6MB), run=53169-54940msec WRITE: bw=458KiB/s (469kB/s), 114KiB/s-118KiB/s (116kB/s-121kB/s), io=24.6MiB (25.7MB), run=53169-54940msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181131: Fri Jul 24 21:42:48 2026 read: IOPS=22, BW=89.3KiB/s (91.4kB/s)(5992KiB/67133msec) clat (msec): min=3, max=723, avg=18.96, stdev=23.07 lat (msec): min=3, max=723, avg=18.96, stdev=23.07 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 49], | 99.00th=[ 70], 99.50th=[ 75], 99.90th=[ 84], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 23, max= 264, per=25.09%, avg=89.33, stdev=53.96, samples=132 iops : min= 5, max= 66, avg=22.02, stdev=13.59, samples=132 write: IOPS=23, BW=93.8KiB/s (96.0kB/s)(6296KiB/67133msec); 0 zone resets clat (msec): min=5, max=123, avg=24.47, stdev=16.09 lat (msec): min=5, max=123, avg=24.48, stdev=16.09 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 38], 90.00th=[ 47], 95.00th=[ 55], | 99.00th=[ 79], 99.50th=[ 91], 99.90th=[ 121], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 23, max= 248, per=25.10%, avg=93.61, stdev=52.83, samples=132 iops : min= 5, max= 62, avg=23.09, stdev=13.32, samples=132 lat (msec) : 4=0.10%, 10=22.59%, 20=37.79%, 50=33.50%, 100=5.86% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.10%, sys=11.85%, ctx=6128, 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=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=181133: Fri Jul 24 21:42:48 2026 read: IOPS=22, BW=88.6KiB/s (90.7kB/s)(5940KiB/67046msec) clat (msec): min=3, max=700, avg=18.74, stdev=22.84 lat (msec): min=3, max=700, avg=18.75, stdev=22.84 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 50], | 99.00th=[ 72], 99.50th=[ 77], 99.90th=[ 112], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 16, max= 287, per=24.99%, avg=88.96, stdev=54.85, samples=132 iops : min= 4, max= 71, avg=21.92, stdev=13.79, samples=132 write: IOPS=23, BW=94.7KiB/s (96.0kB/s)(6348KiB/67046msec); 0 zone resets clat (msec): min=5, max=110, avg=24.57, stdev=15.37 lat (msec): min=5, max=110, avg=24.57, stdev=15.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 46], 95.00th=[ 54], | 99.00th=[ 75], 99.50th=[ 92], 99.90th=[ 104], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 23, max= 256, per=25.42%, avg=94.83, stdev=51.36, samples=132 iops : min= 5, max= 64, avg=23.39, stdev=12.94, samples=132 lat (msec) : 4=0.10%, 10=21.74%, 20=38.61%, 50=33.76%, 100=5.57% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.09%, sys=11.85%, ctx=6067, 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=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=181134: Fri Jul 24 21:42:48 2026 read: IOPS=22, BW=89.5KiB/s (91.7kB/s)(6028KiB/67324msec) clat (usec): min=2648, max=83751, avg=18460.67, stdev=14282.08 lat (usec): min=2649, max=83752, avg=18461.62, stdev=14282.15 clat percentiles (usec): | 1.00th=[ 3556], 5.00th=[ 5080], 10.00th=[ 5932], 20.00th=[ 7570], | 30.00th=[ 9503], 40.00th=[11600], 50.00th=[13435], 60.00th=[16188], | 70.00th=[20055], 80.00th=[27395], 90.00th=[40109], 95.00th=[49021], | 99.00th=[66323], 99.50th=[74974], 99.90th=[82314], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 23, max= 280, per=25.29%, avg=90.04, stdev=55.08, samples=133 iops : min= 5, max= 70, avg=22.20, stdev=13.88, samples=133 write: IOPS=23, BW=92.0KiB/s (95.2kB/s)(6260KiB/67324msec); 0 zone resets clat (msec): min=4, max=704, avg=25.11, stdev=23.96 lat (msec): min=4, max=704, avg=25.11, stdev=23.96 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 38], 90.00th=[ 48], 95.00th=[ 55], | 99.00th=[ 81], 99.50th=[ 101], 99.90th=[ 138], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 31, max= 296, per=25.04%, avg=93.41, stdev=56.12, samples=133 iops : min= 7, max= 74, avg=23.04, stdev=14.14, samples=133 lat (msec) : 4=0.85%, 10=22.01%, 20=37.70%, 50=33.33%, 100=5.89% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.11%, sys=11.58%, ctx=6079, 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=181135: Fri Jul 24 21:42:48 2026 read: IOPS=22, BW=90.3KiB/s (92.5kB/s)(6052KiB/67002msec) clat (msec): min=3, max=101, avg=18.70, stdev=14.22 lat (msec): min=3, max=101, avg=18.70, stdev=14.22 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 28], 90.00th=[ 39], 95.00th=[ 48], | 99.00th=[ 67], 99.50th=[ 78], 99.90th=[ 101], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 8, max= 280, per=25.44%, avg=90.58, stdev=53.08, samples=132 iops : min= 2, max= 70, avg=22.33, stdev=13.37, samples=132 write: IOPS=23, BW=93.1KiB/s (95.3kB/s)(6236KiB/67002msec); 0 zone resets clat (msec): min=5, max=705, avg=24.69, stdev=23.41 lat (msec): min=5, max=705, avg=24.69, stdev=23.41 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 36], 90.00th=[ 45], 95.00th=[ 54], | 99.00th=[ 84], 99.50th=[ 97], 99.90th=[ 138], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 31, max= 264, per=25.02%, avg=93.33, stdev=51.08, samples=132 iops : min= 7, max= 66, avg=23.02, stdev=12.89, samples=132 lat (msec) : 4=0.16%, 10=21.29%, 20=39.03%, 50=33.92%, 100=5.34% lat (msec) : 250=0.23%, 750=0.03% cpu : usr=0.10%, sys=11.78%, ctx=6203, 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=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=357KiB/s (365kB/s), 88.6KiB/s-90.3KiB/s (90.7kB/s-92.5kB/s), io=23.4MiB (24.6MB), run=67002-67324msec WRITE: bw=373KiB/s (382kB/s), 92.0KiB/s-94.7KiB/s (95.2kB/s-96.0kB/s), io=24.6MiB (25.7MB), run=67002-67324msec 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=181171: Fri Jul 24 21:43:08 2026 read: IOPS=22, BW=357KiB/s (366kB/s)(5920KiB/16574msec) clat (usec): min=35, max=94430, avg=23044.54, stdev=13886.46 lat (usec): min=36, max=94430, avg=23045.42, stdev=13886.48 clat percentiles (usec): | 1.00th=[ 89], 5.00th=[ 7635], 10.00th=[10814], 20.00th=[13042], | 30.00th=[15401], 40.00th=[17957], 50.00th=[20317], 60.00th=[23462], | 70.00th=[26346], 80.00th=[30278], 90.00th=[39060], 95.00th=[49546], | 99.00th=[74974], 99.50th=[79168], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 190, max= 640, per=24.01%, avg=347.00, stdev=106.47, samples=32 iops : min= 11, max= 40, avg=21.25, stdev= 6.64, samples=32 write: IOPS=24, BW=384KiB/s (393kB/s)(6368KiB/16574msec); 0 zone resets clat (usec): min=1068, max=74604, avg=19939.73, stdev=13169.41 lat (usec): min=1069, max=74605, avg=19941.18, stdev=13169.53 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 4146], 10.00th=[ 5276], 20.00th=[ 8291], | 30.00th=[11338], 40.00th=[14353], 50.00th=[17171], 60.00th=[20317], | 70.00th=[25297], 80.00th=[29492], 90.00th=[38536], 95.00th=[47449], | 99.00th=[57934], 99.50th=[73925], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 128, max= 576, per=24.87%, avg=378.09, stdev=103.14, samples=32 iops : min= 8, max= 36, avg=23.19, stdev= 6.54, samples=32 lat (usec) : 50=0.13%, 100=0.78%, 250=0.91%, 500=0.26% lat (msec) : 2=0.65%, 4=1.69%, 10=13.15%, 20=36.33%, 50=42.06% lat (msec) : 100=4.04% cpu : usr=0.07%, sys=27.45%, ctx=2897, 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=181173: Fri Jul 24 21:43:08 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(5744KiB/15947msec) clat (usec): min=34, max=72684, avg=22464.17, stdev=11413.90 lat (usec): min=35, max=72686, avg=22464.98, stdev=11413.93 clat percentiles (usec): | 1.00th=[ 104], 5.00th=[ 269], 10.00th=[10290], 20.00th=[13698], | 30.00th=[16188], 40.00th=[19006], 50.00th=[21365], 60.00th=[23200], | 70.00th=[26608], 80.00th=[31065], 90.00th=[38011], 95.00th=[42730], | 99.00th=[56361], 99.50th=[58983], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 159, max= 608, per=25.08%, avg=362.42, stdev=101.54, samples=31 iops : min= 9, max= 38, avg=22.23, stdev= 6.41, samples=31 write: IOPS=25, BW=410KiB/s (420kB/s)(6544KiB/15947msec); 0 zone resets clat (usec): min=1329, max=88602, avg=19215.32, stdev=13726.66 lat (usec): min=1330, max=88604, avg=19216.76, stdev=13726.71 clat percentiles (usec): | 1.00th=[ 2802], 5.00th=[ 4490], 10.00th=[ 5211], 20.00th=[ 7570], | 30.00th=[10421], 40.00th=[13173], 50.00th=[15533], 60.00th=[18744], | 70.00th=[22938], 80.00th=[29230], 90.00th=[38011], 95.00th=[46924], | 99.00th=[64226], 99.50th=[74974], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 192, max= 669, per=27.19%, avg=413.32, stdev=103.16, samples=31 iops : min= 12, max= 41, avg=25.42, stdev= 6.37, samples=31 lat (usec) : 50=0.13%, 100=0.13%, 250=1.95%, 500=0.39% lat (msec) : 2=0.26%, 4=1.30%, 10=15.63%, 20=34.11%, 50=43.23% lat (msec) : 100=2.86% cpu : usr=0.13%, sys=27.52%, ctx=2798, 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=181175: Fri Jul 24 21:43:08 2026 read: IOPS=23, BW=383KiB/s (392kB/s)(6256KiB/16330msec) clat (usec): min=74, max=109276, avg=21935.89, stdev=12607.24 lat (usec): min=75, max=109276, avg=21936.99, stdev=12607.22 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 208], 10.00th=[ 10028], 20.00th=[ 12649], | 30.00th=[ 14877], 40.00th=[ 17695], 50.00th=[ 20317], 60.00th=[ 23200], | 70.00th=[ 26608], 80.00th=[ 30540], 90.00th=[ 35914], 95.00th=[ 42730], | 99.00th=[ 57410], 99.50th=[ 70779], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 191, max= 672, per=26.43%, avg=381.97, stdev=104.41, samples=32 iops : min= 11, max= 42, avg=23.44, stdev= 6.54, samples=32 write: IOPS=23, BW=369KiB/s (378kB/s)(6032KiB/16330msec); 0 zone resets clat (usec): min=1428, max=78326, avg=20351.15, stdev=13952.05 lat (usec): min=1429, max=78328, avg=20377.54, stdev=13932.68 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3982], 10.00th=[ 5145], 20.00th=[ 7504], | 30.00th=[11207], 40.00th=[14615], 50.00th=[17433], 60.00th=[21103], | 70.00th=[25297], 80.00th=[30278], 90.00th=[39060], 95.00th=[47449], | 99.00th=[67634], 99.50th=[70779], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 96, max= 608, per=23.87%, avg=362.75, stdev=124.38, samples=32 iops : min= 6, max= 38, avg=22.22, stdev= 7.78, samples=32 lat (usec) : 100=0.65%, 250=2.34%, 500=0.26% lat (msec) : 2=0.52%, 4=1.95%, 10=11.59%, 20=35.55%, 50=44.01% lat (msec) : 100=2.99%, 250=0.13% cpu : usr=0.07%, sys=27.10%, ctx=2842, 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=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=181176: Fri Jul 24 21:43:08 2026 read: IOPS=23, BW=374KiB/s (383kB/s)(6032KiB/16129msec) clat (usec): min=77, max=112600, avg=21958.42, stdev=13292.31 lat (usec): min=77, max=112601, avg=21959.25, stdev=13292.40 clat percentiles (usec): | 1.00th=[ 90], 5.00th=[ 131], 10.00th=[ 9372], 20.00th=[ 12649], | 30.00th=[ 14746], 40.00th=[ 17171], 50.00th=[ 20055], 60.00th=[ 22676], | 70.00th=[ 26346], 80.00th=[ 30278], 90.00th=[ 37487], 95.00th=[ 46400], | 99.00th=[ 63701], 99.50th=[ 65274], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 190, max= 669, per=25.89%, avg=374.09, stdev=100.18, samples=32 iops : min= 11, max= 41, avg=22.94, stdev= 6.23, samples=32 write: IOPS=24, BW=388KiB/s (397kB/s)(6256KiB/16129msec); 0 zone resets clat (usec): min=1078, max=71958, avg=19786.25, stdev=12440.17 lat (usec): min=1079, max=71960, avg=19787.75, stdev=12440.45 clat percentiles (usec): | 1.00th=[ 2704], 5.00th=[ 4080], 10.00th=[ 5014], 20.00th=[ 8291], | 30.00th=[11731], 40.00th=[14877], 50.00th=[16909], 60.00th=[20579], | 70.00th=[24773], 80.00th=[31065], 90.00th=[36963], 95.00th=[41681], | 99.00th=[54264], 99.50th=[60556], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 191, max= 704, per=25.59%, avg=388.94, stdev=114.99, samples=32 iops : min= 11, max= 44, avg=23.88, stdev= 7.25, samples=32 lat (usec) : 100=1.17%, 250=1.95%, 500=0.13%, 750=0.13% lat (msec) : 2=0.13%, 4=2.21%, 10=12.11%, 20=36.20%, 50=43.10% lat (msec) : 100=2.73%, 250=0.13% cpu : usr=0.09%, sys=27.33%, ctx=2931, 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=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=1445KiB/s (1480kB/s), 357KiB/s-383KiB/s (366kB/s-392kB/s), io=23.4MiB (24.5MB), run=15947-16574msec WRITE: bw=1520KiB/s (1557kB/s), 369KiB/s-410KiB/s (378kB/s-420kB/s), io=24.6MiB (25.8MB), run=15947-16574msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181169: Fri Jul 24 21:43:11 2026 read: IOPS=19, BW=310KiB/s (317kB/s)(5920KiB/19104msec) clat (msec): min=3, max=100, avg=21.81, stdev=14.07 lat (msec): min=3, max=100, avg=21.81, stdev=14.07 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 42], 95.00th=[ 53], | 99.00th=[ 65], 99.50th=[ 68], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 159, max= 640, per=23.94%, avg=300.03, stdev=125.86, samples=37 iops : min= 9, max= 40, avg=18.22, stdev= 8.05, samples=37 write: IOPS=20, BW=333KiB/s (341kB/s)(6368KiB/19104msec); 0 zone resets clat (msec): min=7, max=133, avg=27.59, stdev=16.88 lat (msec): min=7, max=133, avg=27.59, stdev=16.88 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 52], 95.00th=[ 62], | 99.00th=[ 82], 99.50th=[ 101], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 95, max= 768, per=24.84%, avg=327.62, stdev=141.41, samples=37 iops : min= 5, max= 48, avg=19.95, stdev= 9.06, samples=37 lat (msec) : 4=0.13%, 10=8.20%, 20=41.41%, 50=41.28%, 100=8.59% lat (msec) : 250=0.39% cpu : usr=0.09%, sys=14.39%, ctx=1772, 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=181170: Fri Jul 24 21:43:11 2026 read: IOPS=18, BW=302KiB/s (309kB/s)(5744KiB/19019msec) clat (msec): min=5, max=100, avg=22.57, stdev=15.23 lat (msec): min=5, max=100, avg=22.57, stdev=15.23 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 33], 90.00th=[ 43], 95.00th=[ 55], | 99.00th=[ 85], 99.50th=[ 96], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 128, max= 608, per=23.69%, avg=296.81, stdev=107.98, samples=37 iops : min= 8, max= 38, avg=18.00, stdev= 6.92, samples=37 write: IOPS=21, BW=344KiB/s (352kB/s)(6544KiB/19019msec); 0 zone resets clat (msec): min=6, max=109, avg=26.52, stdev=16.10 lat (msec): min=6, max=109, avg=26.52, stdev=16.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 51], 95.00th=[ 57], | 99.00th=[ 75], 99.50th=[ 80], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 127, max= 864, per=25.49%, avg=336.19, stdev=161.53, samples=37 iops : min= 7, max= 54, avg=20.46, stdev=10.32, samples=37 lat (msec) : 10=10.94%, 20=40.36%, 50=40.23%, 100=8.20%, 250=0.26% cpu : usr=0.07%, sys=14.50%, ctx=1809, 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=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=181172: Fri Jul 24 21:43:11 2026 read: IOPS=20, BW=327KiB/s (335kB/s)(6256KiB/19103msec) clat (msec): min=5, max=128, avg=23.05, stdev=16.96 lat (msec): min=5, max=128, avg=23.05, stdev=16.96 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 44], 95.00th=[ 61], | 99.00th=[ 88], 99.50th=[ 116], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 127, max= 800, per=25.96%, avg=325.32, stdev=157.69, samples=37 iops : min= 7, max= 50, avg=19.78, stdev=10.07, samples=37 write: IOPS=19, BW=316KiB/s (323kB/s)(6032KiB/19103msec); 0 zone resets clat (usec): min=6443, max=86346, avg=26673.52, stdev=15672.92 lat (usec): min=6445, max=86347, avg=26675.65, stdev=15672.61 clat percentiles (usec): | 1.00th=[ 7439], 5.00th=[ 9372], 10.00th=[10683], 20.00th=[12911], | 30.00th=[15139], 40.00th=[18482], 50.00th=[22938], 60.00th=[27919], | 70.00th=[31327], 80.00th=[39060], 90.00th=[50594], 95.00th=[56361], | 99.00th=[70779], 99.50th=[80217], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 95, max= 672, per=23.02%, avg=303.65, stdev=135.45, samples=37 iops : min= 5, max= 42, avg=18.43, stdev= 8.68, samples=37 lat (msec) : 10=9.90%, 20=42.45%, 50=38.54%, 100=8.85%, 250=0.26% cpu : usr=0.09%, sys=14.26%, ctx=1773, 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=181174: Fri Jul 24 21:43:11 2026 read: IOPS=19, BW=316KiB/s (324kB/s)(6032KiB/19085msec) clat (msec): min=3, max=127, avg=21.92, stdev=15.84 lat (msec): min=3, max=127, avg=21.92, stdev=15.84 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 41], 95.00th=[ 53], | 99.00th=[ 90], 99.50th=[ 106], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 63, max= 832, per=24.50%, avg=307.00, stdev=158.56, samples=37 iops : min= 3, max= 52, avg=18.65, stdev=10.15, samples=37 write: IOPS=20, BW=328KiB/s (336kB/s)(6256KiB/19085msec); 0 zone resets clat (msec): min=7, max=131, avg=27.47, stdev=16.36 lat (msec): min=7, max=131, avg=27.47, stdev=16.36 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 50], 95.00th=[ 58], | 99.00th=[ 80], 99.50th=[ 83], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 159, max= 672, per=24.37%, avg=321.46, stdev=125.15, samples=37 iops : min= 9, max= 42, avg=19.57, stdev= 8.01, samples=37 lat (msec) : 4=0.13%, 10=10.16%, 20=40.62%, 50=41.67%, 100=6.90% lat (msec) : 250=0.52% cpu : usr=0.08%, sys=14.26%, ctx=1777, 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=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=1254KiB/s (1284kB/s), 302KiB/s-327KiB/s (309kB/s-335kB/s), io=23.4MiB (24.5MB), run=19019-19104msec WRITE: bw=1319KiB/s (1351kB/s), 316KiB/s-344KiB/s (323kB/s-352kB/s), io=24.6MiB (25.8MB), run=19019-19104msec 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=181187: Fri Jul 24 21:43:20 2026 read: IOPS=2, BW=2881KiB/s (2950kB/s)(7168KiB/2488msec) clat (usec): min=858, max=274180, avg=144077.12, stdev=85117.04 lat (usec): min=859, max=274181, avg=144078.23, stdev=85117.19 clat percentiles (usec): | 1.00th=[ 857], 5.00th=[ 857], 10.00th=[ 857], 20.00th=[113771], | 30.00th=[121111], 40.00th=[121111], 50.00th=[123208], 60.00th=[173016], | 70.00th=[173016], 80.00th=[202376], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 1973, max= 4096, per=47.49%, avg=3388.33, stdev=1225.71, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=2, BW=2058KiB/s (2107kB/s)(5120KiB/2488msec); 0 zone resets clat (msec): min=158, max=425, avg=273.08, stdev=131.17 lat (msec): min=158, max=426, avg=273.14, stdev=131.18 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 197], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2048, max= 3663, per=28.58%, avg=2855.50, stdev=1141.98, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 lat (usec) : 1000=8.33% lat (msec) : 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=52.39%, ctx=1215, 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=181189: Fri Jul 24 21:43:20 2026 read: IOPS=0, BW=714KiB/s (731kB/s)(2048KiB/2870msec) clat (msec): min=120, max=206, avg=163.54, stdev=60.50 lat (msec): min=120, max=206, avg=163.55, stdev=60.50 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 122], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 207], 90.00th=[ 207], 95.00th=[ 207], | 99.00th=[ 207], 99.50th=[ 207], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 1831, max= 1946, per=26.47%, avg=1888.50, stdev=81.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3568KiB/s (3654kB/s)(10.0MiB/2870msec); 0 zone resets clat (msec): min=118, max=337, avg=243.96, stdev=77.49 lat (msec): min=118, max=337, avg=244.03, stdev=77.48 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 222], 50.00th=[ 271], 60.00th=[ 275], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 321], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 3663, max= 4096, per=39.92%, avg=3987.75, stdev=216.50, samples=4 iops : min= 3, max= 4, avg= 3.75, stdev= 0.50, samples=4 lat (msec) : 250=50.00%, 500=50.00% cpu : usr=0.00%, sys=50.40%, ctx=444, 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=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=181191: Fri Jul 24 21:43:20 2026 read: IOPS=2, BW=2448KiB/s (2507kB/s)(6144KiB/2510msec) clat (usec): min=471, max=142144, avg=75094.30, stdev=72401.05 lat (usec): min=472, max=142144, avg=75095.16, stdev=72401.04 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 27919], 50.00th=[ 27919], 60.00th=[139461], | 70.00th=[139461], 80.00th=[139461], 90.00th=[141558], 95.00th=[141558], | 99.00th=[141558], 99.50th=[141558], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 2048, max= 5495, per=52.86%, avg=3771.50, stdev=2437.40, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2448KiB/s (2507kB/s)(6144KiB/2510msec); 0 zone resets clat (msec): min=161, max=604, avg=340.15, stdev=165.96 lat (msec): min=162, max=604, avg=340.20, stdev=165.96 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 368], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1831, max= 2048, per=19.70%, avg=1968.25, stdev=103.36, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=38.74%, ctx=266, 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=181192: Fri Jul 24 21:43:20 2026 read: IOPS=2, BW=2053KiB/s (2102kB/s)(5120KiB/2494msec) clat (usec): min=422, max=200945, avg=43007.92, stdev=88437.80 lat (usec): min=422, max=200946, avg=43008.76, stdev=88437.78 clat percentiles (usec): | 1.00th=[ 424], 5.00th=[ 424], 10.00th=[ 424], 20.00th=[ 424], | 30.00th=[ 478], 40.00th=[ 478], 50.00th=[ 824], 60.00th=[ 824], | 70.00th=[ 12387], 80.00th=[ 12387], 90.00th=[200279], 95.00th=[200279], | 99.00th=[200279], 99.50th=[200279], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 7327, max= 7327, per=100.00%, avg=7327.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2874KiB/s (2943kB/s)(7168KiB/2494msec); 0 zone resets clat (msec): min=152, max=480, avg=299.62, stdev=108.19 lat (msec): min=152, max=480, avg=299.67, stdev=108.20 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 228], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 296], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 363], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 1831, max= 4096, per=26.61%, avg=2658.33, stdev=1249.77, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 20=8.33%, 250=33.33%, 500=33.33% cpu : usr=0.04%, sys=42.44%, ctx=241, 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=7136KiB/s (7307kB/s), 714KiB/s-2881KiB/s (731kB/s-2950kB/s), io=20.0MiB (20.0MB), run=2488-2870msec WRITE: bw=9990KiB/s (10.2MB/s), 2058KiB/s-3568KiB/s (2107kB/s-3654kB/s), io=28.0MiB (29.4MB), run=2488-2870msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181185: Fri Jul 24 21:43:20 2026 read: IOPS=3, BW=3392KiB/s (3474kB/s)(7168KiB/2113msec) clat (msec): min=57, max=190, avg=108.54, stdev=48.25 lat (msec): min=57, max=190, avg=108.54, stdev=48.25 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 67], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 97], 60.00th=[ 114], | 70.00th=[ 114], 80.00th=[ 155], 90.00th=[ 190], 95.00th=[ 190], | 99.00th=[ 190], 99.50th=[ 190], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 1946, max= 5269, per=41.93%, avg=2825.50, stdev=1629.65, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=2, BW=2423KiB/s (2481kB/s)(5120KiB/2113msec); 0 zone resets clat (msec): min=70, max=570, avg=260.26, stdev=191.69 lat (msec): min=70, max=570, avg=260.32, stdev=191.70 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2039, max= 5840, per=35.08%, avg=3309.00, stdev=2191.91, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 lat (msec) : 100=41.67%, 250=41.67%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=17.04%, ctx=277, 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=181186: Fri Jul 24 21:43:20 2026 read: IOPS=0, BW=674KiB/s (690kB/s)(2048KiB/3039msec) clat (msec): min=103, max=680, avg=391.98, stdev=408.08 lat (msec): min=103, max=680, avg=391.99, stdev=408.08 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 104], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 2048, max= 2048, per=30.39%, avg=2048.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3370KiB/s (3450kB/s)(10.0MiB/3039msec); 0 zone resets clat (msec): min=68, max=434, avg=213.16, stdev=109.67 lat (msec): min=68, max=434, avg=213.23, stdev=109.66 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 104], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 201], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 234], 90.00th=[ 342], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 2039, max= 5840, per=31.73%, avg=2993.75, stdev=1897.50, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.73, samples=4 lat (msec) : 100=8.33%, 250=66.67%, 500=16.67%, 750=8.33% cpu : usr=0.03%, sys=21.07%, ctx=178, 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=181188: Fri Jul 24 21:43:20 2026 read: IOPS=1, BW=2026KiB/s (2075kB/s)(6144KiB/3032msec) clat (msec): min=34, max=505, avg=190.59, stdev=207.11 lat (msec): min=34, max=505, avg=190.59, stdev=207.11 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 48], | 30.00th=[ 48], 40.00th=[ 69], 50.00th=[ 69], 60.00th=[ 86], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1946, max= 2039, per=29.57%, avg=1992.50, stdev=65.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2026KiB/s (2075kB/s)(6144KiB/3032msec); 0 zone resets clat (msec): min=46, max=724, avg=311.50, stdev=275.95 lat (msec): min=46, max=724, avg=311.58, stdev=275.95 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 122], 50.00th=[ 122], 60.00th=[ 376], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1809, max= 2048, per=21.05%, avg=1986.00, stdev=118.08, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 50=25.00%, 100=25.00%, 250=8.33%, 500=16.67%, 750=25.00% cpu : usr=0.00%, sys=15.37%, ctx=102, 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=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=181190: Fri Jul 24 21:43:20 2026 read: IOPS=2, BW=2339KiB/s (2395kB/s)(5120KiB/2189msec) clat (msec): min=55, max=245, avg=125.89, stdev=77.20 lat (msec): min=55, max=245, avg=125.89, stdev=77.20 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 85], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3275KiB/s (3353kB/s)(7168KiB/2189msec); 0 zone resets clat (msec): min=60, max=661, avg=220.61, stdev=217.96 lat (msec): min=60, max=661, avg=220.69, stdev=217.96 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 94], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 120], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 363], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 3524, max= 5840, per=47.56%, avg=4486.67, stdev=1206.41, samples=3 iops : min= 3, max= 5, avg= 4.00, stdev= 1.00, samples=3 lat (msec) : 100=41.67%, 250=41.67%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=16.68%, ctx=97, 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=6739KiB/s (6901kB/s), 674KiB/s-3392KiB/s (690kB/s-3474kB/s), io=20.0MiB (20.0MB), run=2113-3039msec WRITE: bw=9435KiB/s (9661kB/s), 2026KiB/s-3370KiB/s (2075kB/s-3450kB/s), io=28.0MiB (29.4MB), run=2113-3039msec 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=181197: Fri Jul 24 21:43:30 2026 read: IOPS=1, BW=5059KiB/s (5180kB/s)(12.0MiB/2429msec) clat (msec): min=432, max=1413, avg=792.13, stdev=540.65 lat (msec): min=432, max=1413, avg=792.14, stdev=540.65 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 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= 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%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=35.21%, ctx=2679, 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=181198: Fri Jul 24 21:43:30 2026 read: IOPS=0, BW=1587KiB/s (1625kB/s)(4096KiB/2581msec) clat (nsec): min=1413.9M, max=1413.9M, avg=1413875096.00, stdev= 0.00 lat (nsec): min=1413.9M, max=1413.9M, avg=1413876438.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1418], 5.00th=[ 1418], 10.00th=[ 1418], 20.00th=[ 1418], | 30.00th=[ 1418], 40.00th=[ 1418], 50.00th=[ 1418], 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= 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 write: IOPS=0, BW=3174KiB/s (3250kB/s)(8192KiB/2581msec); 0 zone resets clat (msec): min=437, max=667, avg=552.56, stdev=163.02 lat (msec): min=437, max=668, avg=552.86, stdev=163.01 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8094, max= 8094, per=76.87%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=15.58%, ctx=1049, 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=181199: Fri Jul 24 21:43:30 2026 write: IOPS=0, BW=3949KiB/s (4043kB/s)(12.0MiB/3112msec); 0 zone resets clat (msec): min=77, max=2645, avg=1016.34, stdev=1416.66 lat (msec): min=77, max=2646, avg=1016.72, stdev=1416.57 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 78], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 8192, max= 8192, per=77.80%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=10.77%, ctx=88, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=181200: Fri Jul 24 21:43:30 2026 write: IOPS=1, BW=4811KiB/s (4927kB/s)(12.0MiB/2554msec); 0 zone resets clat (msec): min=158, max=2163, avg=832.47, stdev=1152.98 lat (msec): min=158, max=2164, avg=832.86, stdev=1152.97 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 176], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min=11314, max=11314, per=100.00%, avg=11314.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=12.61%, ctx=59, 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=6348KiB/s (6500kB/s), 1587KiB/s-5059KiB/s (1625kB/s-5180kB/s), io=16.0MiB (16.8MB), run=2429-2581msec WRITE: bw=10.3MiB/s (10.8MB/s), 3174KiB/s-4811KiB/s (3250kB/s-4927kB/s), io=32.0MiB (33.6MB), run=2554-3112msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181202: Fri Jul 24 21:43:30 2026 read: IOPS=1, BW=4558KiB/s (4667kB/s)(12.0MiB/2696msec) clat (msec): min=192, max=2032, avg=898.37, stdev=991.74 lat (msec): min=192, max=2032, avg=898.37, stdev=991.74 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 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) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=10.69%, ctx=88, 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=181203: Fri Jul 24 21:43:30 2026 read: IOPS=0, BW=1681KiB/s (1721kB/s)(4096KiB/2437msec) clat (nsec): min=1241.5M, max=1241.5M, avg=1241541577.00, stdev= 0.00 lat (nsec): min=1241.5M, max=1241.5M, avg=1241543365.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] 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=3362KiB/s (3442kB/s)(8192KiB/2437msec); 0 zone resets clat (msec): min=353, max=804, avg=578.81, stdev=318.53 lat (msec): min=353, max=804, avg=579.12, stdev=318.54 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 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= 8159, max= 8159, per=63.17%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=10.06%, ctx=74, 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=181204: Fri Jul 24 21:43:30 2026 write: IOPS=1, BW=5278KiB/s (5405kB/s)(12.0MiB/2328msec); 0 zone resets clat (msec): min=236, max=1794, avg=767.06, stdev=890.15 lat (msec): min=237, max=1795, avg=767.30, stdev=890.19 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.10%, ctx=70, 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=181205: Fri Jul 24 21:43:30 2026 write: IOPS=1, BW=4844KiB/s (4960kB/s)(12.0MiB/2537msec); 0 zone resets clat (msec): min=493, max=1076, avg=844.81, stdev=309.22 lat (msec): min=493, max=1076, avg=845.06, stdev=309.15 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1083], 80.00th=[ 1083], 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= 8126, max= 8192, per=63.17%, 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=11.08%, 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 Run status group 0 (all jobs): READ: bw=6077KiB/s (6223kB/s), 1681KiB/s-4558KiB/s (1721kB/s-4667kB/s), io=16.0MiB (16.8MB), run=2437-2696msec WRITE: bw=12.6MiB/s (13.2MB/s), 3362KiB/s-5278KiB/s (3442kB/s-5405kB/s), io=32.0MiB (33.6MB), run=2328-2537msec