== sanity test 398b: DIO and buffer IO race ============== 13:05:54 (1786035954) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.49627 s, 6.7 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=144296: Thu Aug 6 13:08:52 2026 read: IOPS=9, BW=39.1KiB/s (40.1kB/s)(5992KiB/153198msec) clat (usec): min=35, max=345411, avg=51768.70, stdev=38378.33 lat (usec): min=35, max=345412, avg=51771.29, stdev=38379.41 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 73], 10.00th=[ 12518], 20.00th=[ 24249], | 30.00th=[ 30540], 40.00th=[ 36963], 50.00th=[ 44303], 60.00th=[ 52691], | 70.00th=[ 62653], 80.00th=[ 77071], 90.00th=[ 99091], 95.00th=[116917], | 99.00th=[189793], 99.50th=[231736], 99.90th=[320865], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 86, per=25.12%, avg=38.94, stdev=16.92, samples=299 iops : min= 1, max= 21, avg= 9.07, stdev= 4.27, samples=299 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6296KiB/153198msec); 0 zone resets clat (usec): min=971, max=961893, avg=47616.46, stdev=51821.84 lat (usec): min=972, max=961896, avg=47622.11, stdev=51821.56 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1631], 10.00th=[ 2802], 20.00th=[ 6194], | 30.00th=[ 12649], 40.00th=[ 22414], 50.00th=[ 34866], 60.00th=[ 49546], | 70.00th=[ 63177], 80.00th=[ 82314], 90.00th=[108528], 95.00th=[135267], | 99.00th=[179307], 99.50th=[244319], 99.90th=[574620], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 5, max= 103, per=24.93%, avg=40.64, stdev=19.57, samples=301 iops : min= 1, max= 25, avg= 9.50, stdev= 4.94, samples=301 lat (usec) : 50=0.23%, 100=3.78%, 250=0.10%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.16% lat (msec) : 2=4.20%, 4=2.57%, 10=7.19%, 20=7.91%, 50=32.26% lat (msec) : 100=30.01%, 250=11.00%, 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.00%, ctx=6923, majf=0, minf=19 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=144297: Thu Aug 6 13:08:52 2026 read: IOPS=9, BW=38.9KiB/s (39.8kB/s)(5940KiB/152739msec) clat (usec): min=40, max=998884, avg=51292.57, stdev=46245.98 lat (usec): min=41, max=998885, avg=51295.18, stdev=46246.17 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 77], 10.00th=[ 11338], | 20.00th=[ 23725], 30.00th=[ 30278], 40.00th=[ 36439], | 50.00th=[ 44303], 60.00th=[ 51119], 70.00th=[ 61080], | 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[ 116917], | 99.00th=[ 170918], 99.50th=[ 200279], 99.90th=[ 650118], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 110, per=25.09%, avg=38.89, stdev=17.42, samples=297 iops : min= 1, max= 27, avg= 9.05, stdev= 4.39, samples=297 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6348KiB/152739msec); 0 zone resets clat (usec): min=1078, max=533703, avg=47843.42, stdev=48475.69 lat (usec): min=1080, max=533706, avg=47849.32, stdev=48473.84 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1680], 10.00th=[ 2638], 20.00th=[ 6194], | 30.00th=[ 11469], 40.00th=[ 22676], 50.00th=[ 36439], 60.00th=[ 47973], | 70.00th=[ 62653], 80.00th=[ 82314], 90.00th=[111674], 95.00th=[137364], | 99.00th=[200279], 99.50th=[229639], 99.90th=[383779], 99.95th=[534774], | 99.99th=[534774] bw ( KiB/s): min= 7, max= 121, per=25.20%, avg=41.08, stdev=18.40, samples=300 iops : min= 1, max= 30, avg= 9.61, stdev= 4.67, samples=300 lat (usec) : 50=0.10%, 100=3.58%, 250=0.75%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.13%, 4=3.58%, 10=7.10%, 20=7.58%, 50=33.01% lat (msec) : 100=28.68%, 250=11.04%, 500=0.23%, 750=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.90%, ctx=6828, majf=0, minf=20 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=144298: Thu Aug 6 13:08:52 2026 read: IOPS=9, BW=39.1KiB/s (40.1kB/s)(6028KiB/154056msec) clat (usec): min=33, max=1163.5k, avg=50046.49, stdev=47352.10 lat (usec): min=33, max=1163.5k, avg=50056.79, stdev=47345.41 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 200], | 20.00th=[ 22938], 30.00th=[ 28705], 40.00th=[ 35390], | 50.00th=[ 42206], 60.00th=[ 50070], 70.00th=[ 61080], | 80.00th=[ 74974], 90.00th=[ 95945], 95.00th=[ 114820], | 99.00th=[ 168821], 99.50th=[ 210764], 99.90th=[ 442500], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 125, per=25.33%, avg=39.26, stdev=18.49, samples=296 iops : min= 1, max= 31, avg= 9.15, stdev= 4.68, samples=296 write: IOPS=10, BW=40.6KiB/s (41.6kB/s)(6260KiB/154056msec); 0 zone resets clat (usec): min=1285, max=353700, avg=49845.00, stdev=50800.97 lat (usec): min=1285, max=353702, avg=49850.17, stdev=50800.79 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1647], 10.00th=[ 2540], 20.00th=[ 6259], | 30.00th=[ 11600], 40.00th=[ 24249], 50.00th=[ 36963], 60.00th=[ 49021], | 70.00th=[ 63701], 80.00th=[ 84411], 90.00th=[116917], 95.00th=[145753], | 99.00th=[227541], 99.50th=[256902], 99.90th=[320865], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 101, per=24.60%, avg=40.10, stdev=17.40, samples=300 iops : min= 1, max= 25, avg= 9.36, stdev= 4.40, samples=300 lat (usec) : 50=0.39%, 100=3.84%, 250=0.72%, 500=0.03%, 1000=0.03% lat (msec) : 2=4.36%, 4=3.29%, 10=6.67%, 20=7.42%, 50=33.40% lat (msec) : 100=28.16%, 250=11.26%, 500=0.39%, 2000=0.03% cpu : usr=0.09%, sys=4.77%, ctx=6831, majf=0, minf=19 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=144299: Thu Aug 6 13:08:52 2026 read: IOPS=9, BW=39.5KiB/s (40.4kB/s)(6052KiB/153342msec) clat (usec): min=35, max=470978, avg=49045.19, stdev=36940.37 lat (usec): min=35, max=470979, avg=49053.29, stdev=36940.28 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 110], 20.00th=[ 22676], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 50070], | 70.00th=[ 60556], 80.00th=[ 73925], 90.00th=[ 95945], 95.00th=[114820], | 99.00th=[166724], 99.50th=[189793], 99.90th=[258999], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 95, per=25.64%, avg=39.74, stdev=17.05, samples=296 iops : min= 1, max= 23, avg= 9.27, stdev= 4.30, samples=296 write: IOPS=10, BW=40.7KiB/s (41.6kB/s)(6236KiB/153342msec); 0 zone resets clat (usec): min=1218, max=1016.9k, avg=50317.70, stdev=53939.14 lat (usec): min=1219, max=1016.9k, avg=50321.26, stdev=53938.68 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1663], 10.00th=[ 2835], | 20.00th=[ 6718], 30.00th=[ 12387], 40.00th=[ 26870], | 50.00th=[ 38536], 60.00th=[ 49546], 70.00th=[ 65799], | 80.00th=[ 83362], 90.00th=[ 116917], 95.00th=[ 145753], | 99.00th=[ 208667], 99.50th=[ 238027], 99.90th=[ 316670], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 103, per=24.78%, avg=40.39, stdev=18.00, samples=300 iops : min= 1, max= 25, avg= 9.43, stdev= 4.54, samples=300 lat (usec) : 50=0.42%, 100=4.30%, 250=0.59%, 500=0.07%, 1000=0.07% lat (msec) : 2=3.94%, 4=2.80%, 10=6.93%, 20=7.26%, 50=33.76% lat (msec) : 100=28.52%, 250=11.17%, 500=0.16%, 2000=0.03% cpu : usr=0.08%, sys=4.69%, ctx=6892, majf=0, minf=20 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=156KiB/s (160kB/s), 38.9KiB/s-39.5KiB/s (39.8kB/s-40.4kB/s), io=23.4MiB (24.6MB), run=152739-154056msec WRITE: bw=163KiB/s (167kB/s), 40.6KiB/s-41.6KiB/s (41.6kB/s-42.6kB/s), io=24.6MiB (25.7MB), run=152739-154056msec fio: pid=144302, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=144301: Thu Aug 6 13:11:09 2026 read: IOPS=5, BW=20.7KiB/s (21.2kB/s)(5992KiB/289318msec) clat (msec): min=5, max=1011, avg=42.39, stdev=47.37 lat (msec): min=5, max=1011, avg=42.39, stdev=47.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 128], | 99.00th=[ 203], 99.50th=[ 234], 99.90th=[ 305], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 87, per=30.60%, avg=23.87, stdev=16.59, samples=484 iops : min= 1, max= 21, avg= 5.33, stdev= 4.20, samples=484 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6296KiB/289318msec); 0 zone resets clat (msec): min=33, max=632, avg=143.33, stdev=73.33 lat (msec): min=33, max=632, avg=143.33, stdev=73.33 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 197], 90.00th=[ 243], 95.00th=[ 292], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 600], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 63, per=26.56%, avg=21.51, stdev=10.89, samples=561 iops : min= 1, max= 15, avg= 4.73, stdev= 2.79, samples=561 lat (msec) : 10=2.83%, 20=13.31%, 50=21.03%, 100=24.06%, 250=33.92% lat (msec) : 500=4.75%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.34%, ctx=5533, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=144302: Thu Aug 6 13:11:09 2026 read: IOPS=4, BW=19.0KiB/s (19.5kB/s)(4600KiB/241832msec) clat (msec): min=5, max=1071, avg=47.28, stdev=56.79 lat (msec): min=5, max=1071, avg=47.28, stdev=56.79 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 36], | 70.00th=[ 49], 80.00th=[ 70], 90.00th=[ 109], 95.00th=[ 138], | 99.00th=[ 213], 99.50th=[ 342], 99.90th=[ 447], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 95, per=28.93%, avg=22.57, stdev=16.22, samples=392 iops : min= 1, max= 23, avg= 4.99, stdev= 4.10, samples=392 write: IOPS=5, BW=20.5KiB/s (20.0kB/s)(4948KiB/241832msec); 0 zone resets clat (msec): min=39, max=542, avg=151.44, stdev=77.41 lat (msec): min=39, max=542, avg=151.45, stdev=77.41 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 114], 50.00th=[ 131], 60.00th=[ 153], | 70.00th=[ 178], 80.00th=[ 209], 90.00th=[ 262], 95.00th=[ 309], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 514], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 55, per=25.09%, avg=20.32, stdev=10.74, samples=466 iops : min= 1, max= 13, avg= 4.42, stdev= 2.75, samples=466 lat (msec) : 10=2.43%, 20=12.44%, 50=20.06%, 100=23.07%, 250=35.51% lat (msec) : 500=6.32%, 750=0.08%, 2000=0.04% cpu : usr=0.04%, sys=1.25%, ctx=4010, majf=0, minf=19 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=1151,1237,0,0 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=144303: Thu Aug 6 13:11:09 2026 read: IOPS=5, BW=20.8KiB/s (21.3kB/s)(6028KiB/290317msec) clat (msec): min=5, max=441, avg=43.80, stdev=40.82 lat (msec): min=5, max=441, avg=43.80, stdev=40.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 93], 95.00th=[ 123], | 99.00th=[ 194], 99.50th=[ 253], 99.90th=[ 359], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 80, per=30.06%, avg=23.45, stdev=15.38, samples=495 iops : min= 1, max= 20, avg= 5.22, stdev= 3.90, samples=495 write: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6260KiB/290317msec); 0 zone resets clat (msec): min=24, max=1245, avg=143.20, stdev=78.63 lat (msec): min=24, max=1245, avg=143.21, stdev=78.63 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 99], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 194], 90.00th=[ 247], 95.00th=[ 288], | 99.00th=[ 372], 99.50th=[ 443], 99.90th=[ 642], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 63, per=26.62%, avg=21.56, stdev=11.12, samples=557 iops : min= 1, max= 15, avg= 4.74, stdev= 2.84, samples=557 lat (msec) : 10=2.70%, 20=11.85%, 50=21.45%, 100=25.36%, 250=33.66% lat (msec) : 500=4.85%, 750=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.37%, ctx=5553, 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=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=144304: Thu Aug 6 13:11:09 2026 read: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6052KiB/289982msec) clat (msec): min=5, max=510, avg=42.24, stdev=44.52 lat (msec): min=5, max=510, avg=42.25, stdev=44.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 91], 95.00th=[ 120], | 99.00th=[ 213], 99.50th=[ 292], 99.90th=[ 443], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 96, per=30.36%, avg=23.68, stdev=16.52, samples=492 iops : min= 1, max= 24, avg= 5.28, stdev= 4.18, samples=492 write: IOPS=5, BW=21.5KiB/s (22.0kB/s)(6236KiB/289982msec); 0 zone resets clat (msec): min=30, max=1244, avg=144.89, stdev=78.82 lat (msec): min=30, max=1244, avg=144.89, stdev=78.82 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 146], | 70.00th=[ 163], 80.00th=[ 201], 90.00th=[ 247], 95.00th=[ 288], | 99.00th=[ 401], 99.50th=[ 456], 99.90th=[ 558], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 63, per=26.35%, avg=21.35, stdev=10.71, samples=559 iops : min= 1, max= 15, avg= 4.68, stdev= 2.74, samples=559 lat (msec) : 10=2.70%, 20=13.54%, 50=21.26%, 100=24.45%, 250=32.91% lat (msec) : 500=4.98%, 750=0.13%, 2000=0.03% cpu : usr=0.05%, sys=1.31%, ctx=5534, 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=78.1KiB/s (79.0kB/s), 19.0KiB/s-20.9KiB/s (19.5kB/s-21.4kB/s), io=22.1MiB (23.2MB), run=241832-290317msec WRITE: bw=81.8KiB/s (83.7kB/s), 20.5KiB/s-21.8KiB/s (20.0kB/s-22.3kB/s), io=23.2MiB (24.3MB), run=241832-290317msec 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=144366: Thu Aug 6 13:11:52 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(5920KiB/31418msec) clat (usec): min=37, max=284503, avg=44422.96, stdev=35497.08 lat (usec): min=38, max=284504, avg=44429.44, stdev=35504.44 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 16057], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 57934], 80.00th=[ 65274], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[158335], 99.50th=[191890], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 62, max= 380, per=25.06%, avg=190.97, stdev=69.07, samples=61 iops : min= 3, max= 23, avg=11.13, stdev= 4.36, samples=61 write: IOPS=12, BW=203KiB/s (208kB/s)(6368KiB/31418msec); 0 zone resets clat (usec): min=1461, max=405614, avg=37410.61, stdev=43887.08 lat (usec): min=1464, max=405617, avg=37414.01, stdev=43886.28 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 1958], 10.00th=[ 2999], 20.00th=[ 5211], | 30.00th=[ 8455], 40.00th=[ 12518], 50.00th=[ 22152], 60.00th=[ 32113], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[200279], 99.50th=[254804], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 31, max= 498, per=25.20%, avg=202.08, stdev=101.11, samples=62 iops : min= 1, max= 31, avg=11.84, stdev= 6.40, samples=62 lat (usec) : 50=0.78%, 100=6.90%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=3.26%, 4=4.56%, 10=10.42%, 20=8.46%, 50=32.42% lat (msec) : 100=25.26%, 250=6.77%, 500=0.39% cpu : usr=0.07%, sys=5.31%, ctx=1487, 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=144367: Thu Aug 6 13:11:52 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(5744KiB/30795msec) clat (usec): min=42, max=174455, avg=43641.31, stdev=30975.89 lat (usec): min=42, max=174456, avg=43642.64, stdev=30975.67 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 20841], | 30.00th=[ 28705], 40.00th=[ 33424], 50.00th=[ 40109], 60.00th=[ 45876], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[160433], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 29, max= 380, per=24.53%, avg=186.92, stdev=73.94, samples=60 iops : min= 1, max= 23, avg=10.87, stdev= 4.67, samples=60 write: IOPS=13, BW=213KiB/s (218kB/s)(6544KiB/30795msec); 0 zone resets clat (usec): min=1539, max=237773, avg=36089.93, stdev=37177.20 lat (usec): min=1542, max=237776, avg=36092.26, stdev=37177.20 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1795], 10.00th=[ 2040], 20.00th=[ 5211], | 30.00th=[ 9241], 40.00th=[ 14091], 50.00th=[ 22676], 60.00th=[ 34341], | 70.00th=[ 49546], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[149947], 99.50th=[166724], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 29, max= 477, per=26.53%, avg=212.78, stdev=99.56, samples=60 iops : min= 1, max= 29, avg=12.50, stdev= 6.27, samples=60 lat (usec) : 50=0.65%, 100=5.47%, 250=0.39%, 500=0.26%, 750=0.26% lat (msec) : 2=4.82%, 4=4.04%, 10=8.59%, 20=10.29%, 50=33.20% lat (msec) : 100=26.56%, 250=5.47% cpu : usr=0.11%, sys=5.38%, ctx=1488, 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=144368: Thu Aug 6 13:11:52 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6256KiB/30949msec) clat (usec): min=45, max=270872, avg=43410.93, stdev=34671.25 lat (usec): min=45, max=270873, avg=43412.17, stdev=34671.29 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 16581], | 30.00th=[ 27657], 40.00th=[ 34341], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 55837], 80.00th=[ 65799], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[137364], 99.50th=[256902], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 63, max= 351, per=27.01%, avg=205.85, stdev=70.36, samples=60 iops : min= 3, max= 21, avg=12.07, stdev= 4.46, samples=60 write: IOPS=12, BW=195KiB/s (200kB/s)(6032KiB/30949msec); 0 zone resets clat (usec): min=1574, max=229299, avg=35825.08, stdev=38877.06 lat (usec): min=1576, max=229302, avg=35827.79, stdev=38877.11 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1876], 10.00th=[ 2376], 20.00th=[ 5669], | 30.00th=[ 9372], 40.00th=[ 15270], 50.00th=[ 22676], 60.00th=[ 32375], | 70.00th=[ 42730], 80.00th=[ 59507], 90.00th=[ 87557], 95.00th=[115868], | 99.00th=[181404], 99.50th=[204473], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 29, max= 414, per=24.20%, avg=194.08, stdev=85.93, samples=61 iops : min= 1, max= 25, avg=11.33, stdev= 5.40, samples=61 lat (usec) : 50=0.26%, 100=7.81%, 250=0.52% lat (msec) : 2=4.43%, 4=3.52%, 10=8.46%, 20=8.59%, 50=35.03% lat (msec) : 100=25.26%, 250=5.86%, 500=0.26% cpu : usr=0.05%, sys=5.04%, ctx=1444, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144369: Thu Aug 6 13:11:52 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6032KiB/31013msec) clat (usec): min=33, max=492657, avg=43920.90, stdev=40715.63 lat (usec): min=33, max=492659, avg=43933.92, stdev=40717.51 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 285], | 30.00th=[ 27132], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 47973], | 70.00th=[ 56361], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[210764], 99.90th=[492831], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 31, max= 349, per=26.08%, avg=198.71, stdev=66.85, samples=59 iops : min= 1, max= 21, avg=11.61, stdev= 4.25, samples=59 write: IOPS=12, BW=202KiB/s (207kB/s)(6256KiB/31013msec); 0 zone resets clat (usec): min=1438, max=248870, avg=36136.93, stdev=37536.34 lat (usec): min=1440, max=248873, avg=36173.51, stdev=37531.52 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1876], 10.00th=[ 2245], 20.00th=[ 5014], | 30.00th=[ 8356], 40.00th=[ 13435], 50.00th=[ 24249], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 64226], 90.00th=[ 91751], 95.00th=[108528], | 99.00th=[149947], 99.50th=[193987], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 58, max= 434, per=25.05%, avg=200.89, stdev=81.23, samples=61 iops : min= 3, max= 27, avg=11.75, stdev= 5.11, samples=61 lat (usec) : 50=1.17%, 100=7.81%, 250=0.65%, 500=0.26%, 750=0.39% lat (msec) : 2=3.91%, 4=4.30%, 10=8.98%, 20=7.94%, 50=32.68% lat (msec) : 100=25.78%, 250=5.99%, 500=0.13% cpu : usr=0.07%, sys=4.96%, ctx=1413, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=762KiB/s (781kB/s), 187KiB/s-202KiB/s (191kB/s-207kB/s), io=23.4MiB (24.5MB), run=30795-31418msec WRITE: bw=802KiB/s (821kB/s), 195KiB/s-213KiB/s (200kB/s-218kB/s), io=24.6MiB (25.8MB), run=30795-31418msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144370: Thu Aug 6 13:12:39 2026 read: IOPS=4, BW=77.1KiB/s (78.9kB/s)(5920KiB/76816msec) clat (msec): min=7, max=320, avg=45.70, stdev=46.02 lat (msec): min=7, max=320, avg=45.71, stdev=46.02 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 96], 95.00th=[ 136], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 319, per=29.36%, avg=89.85, stdev=55.37, samples=130 iops : min= 1, max= 19, avg= 4.82, stdev= 3.54, samples=130 write: IOPS=5, BW=82.9KiB/s (84.9kB/s)(6368KiB/76816msec); 0 zone resets clat (msec): min=47, max=520, avg=149.12, stdev=67.22 lat (msec): min=47, max=520, avg=149.12, stdev=67.22 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 73], 10.00th=[ 83], 20.00th=[ 97], | 30.00th=[ 110], 40.00th=[ 122], 50.00th=[ 136], 60.00th=[ 150], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 234], 95.00th=[ 268], | 99.00th=[ 397], 99.50th=[ 481], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 30, max= 191, per=26.29%, avg=84.66, stdev=37.77, samples=148 iops : min= 1, max= 11, avg= 4.49, stdev= 2.41, samples=148 lat (msec) : 10=0.52%, 20=11.20%, 50=25.00%, 100=18.23%, 250=41.28% lat (msec) : 500=3.65%, 750=0.13% cpu : usr=0.04%, sys=1.37%, ctx=1318, 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=144371: Thu Aug 6 13:12:39 2026 read: IOPS=4, BW=73.5KiB/s (75.2kB/s)(5744KiB/78174msec) clat (msec): min=5, max=343, avg=44.28, stdev=46.00 lat (msec): min=5, max=343, avg=44.28, stdev=46.00 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 89], 95.00th=[ 150], | 99.00th=[ 245], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 251, per=27.63%, avg=84.54, stdev=56.93, samples=132 iops : min= 1, max= 15, avg= 4.48, stdev= 3.62, samples=132 write: IOPS=5, BW=83.7KiB/s (85.7kB/s)(6544KiB/78174msec); 0 zone resets clat (msec): min=47, max=427, avg=151.26, stdev=65.78 lat (msec): min=47, max=427, avg=151.27, stdev=65.78 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 71], 10.00th=[ 80], 20.00th=[ 99], | 30.00th=[ 113], 40.00th=[ 123], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 174], 80.00th=[ 201], 90.00th=[ 239], 95.00th=[ 279], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 30, max= 191, per=26.51%, avg=85.37, stdev=35.76, samples=149 iops : min= 1, max= 11, avg= 4.53, stdev= 2.34, samples=149 lat (msec) : 10=1.17%, 20=11.85%, 50=22.66%, 100=19.01%, 250=40.62% lat (msec) : 500=4.69% cpu : usr=0.04%, sys=1.25%, ctx=1342, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144372: Thu Aug 6 13:12:39 2026 read: IOPS=5, BW=84.3KiB/s (86.3kB/s)(6256KiB/74195msec) clat (msec): min=5, max=337, avg=41.13, stdev=38.57 lat (msec): min=5, max=337, avg=41.13, stdev=38.57 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 41], 80.00th=[ 53], 90.00th=[ 80], 95.00th=[ 113], | 99.00th=[ 209], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 30, max= 285, per=30.07%, avg=92.01, stdev=64.23, samples=134 iops : min= 1, max= 17, avg= 4.95, stdev= 4.05, samples=134 write: IOPS=5, BW=81.3KiB/s (83.2kB/s)(6032KiB/74195msec); 0 zone resets clat (msec): min=51, max=514, avg=153.54, stdev=67.64 lat (msec): min=51, max=514, avg=153.54, stdev=67.64 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 77], 10.00th=[ 85], 20.00th=[ 99], | 30.00th=[ 111], 40.00th=[ 122], 50.00th=[ 136], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 251], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 409], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 30, max= 190, per=25.26%, avg=81.33, stdev=35.66, samples=145 iops : min= 1, max= 11, avg= 4.27, stdev= 2.31, samples=145 lat (msec) : 10=0.78%, 20=11.46%, 50=27.47%, 100=18.88%, 250=36.46% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.04%, sys=1.34%, ctx=1332, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144373: Thu Aug 6 13:12:39 2026 read: IOPS=4, BW=79.3KiB/s (81.2kB/s)(6032KiB/76106msec) clat (msec): min=7, max=303, avg=42.66, stdev=45.20 lat (msec): min=7, max=303, avg=42.67, stdev=45.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 52], 90.00th=[ 87], 95.00th=[ 140], | 99.00th=[ 266], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 319, per=29.21%, avg=89.39, stdev=58.22, samples=131 iops : min= 1, max= 19, avg= 4.77, stdev= 3.69, samples=131 write: IOPS=5, BW=82.2KiB/s (84.2kB/s)(6256KiB/76106msec); 0 zone resets clat (msec): min=48, max=513, avg=151.97, stdev=64.91 lat (msec): min=48, max=513, avg=151.98, stdev=64.91 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 85], 20.00th=[ 101], | 30.00th=[ 112], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 201], 90.00th=[ 241], 95.00th=[ 275], | 99.00th=[ 351], 99.50th=[ 430], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 30, max= 191, per=26.11%, avg=84.08, stdev=34.21, samples=146 iops : min= 1, max= 11, avg= 4.45, stdev= 2.19, samples=146 lat (msec) : 10=1.30%, 20=12.89%, 50=24.48%, 100=16.67%, 250=39.71% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.05%, sys=1.30%, ctx=1375, 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=306KiB/s (314kB/s), 73.5KiB/s-84.3KiB/s (75.2kB/s-86.3kB/s), io=23.4MiB (24.5MB), run=74195-78174msec WRITE: bw=322KiB/s (330kB/s), 81.3KiB/s-83.7KiB/s (83.2kB/s-85.7kB/s), io=24.6MiB (25.8MB), run=74195-78174msec 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=144394: Thu Aug 6 13:12:57 2026 read: IOPS=2, BW=2137KiB/s (2188kB/s)(7168KiB/3354msec) clat (usec): min=581, max=408380, avg=227989.40, stdev=129603.32 lat (usec): min=582, max=408384, avg=227991.57, stdev=129603.69 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[177210], | 30.00th=[183501], 40.00th=[183501], 50.00th=[229639], 60.00th=[270533], | 70.00th=[270533], 80.00th=[329253], 90.00th=[408945], 95.00th=[408945], | 99.00th=[408945], 99.50th=[408945], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 1780, max= 3915, per=69.86%, avg=2839.75, stdev=1101.61, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1527KiB/s (1563kB/s)(5120KiB/3354msec); 0 zone resets clat (msec): min=169, max=674, avg=319.06, stdev=207.09 lat (msec): min=175, max=674, avg=331.08, stdev=197.83 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2035, max= 5224, per=63.76%, avg=3629.50, stdev=2254.96, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.09%, sys=13.24%, ctx=155, 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=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=144396: Thu Aug 6 13:12:57 2026 read: IOPS=0, BW=410KiB/s (419kB/s)(2048KiB/5000msec) clat (usec): min=741, max=326835, avg=163788.27, stdev=230582.98 lat (usec): min=743, max=326837, avg=163790.52, stdev=230583.89 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 742], | 30.00th=[ 742], 40.00th=[ 742], 50.00th=[ 742], 60.00th=[325059], | 70.00th=[325059], 80.00th=[325059], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 1780, max= 2007, per=46.58%, avg=1893.50, stdev=160.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2048KiB/s (2097kB/s)(10.0MiB/5000msec); 0 zone resets clat (msec): min=155, max=674, avg=428.36, stdev=193.28 lat (msec): min=155, max=674, avg=428.68, stdev=193.43 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 207], | 30.00th=[ 245], 40.00th=[ 296], 50.00th=[ 414], 60.00th=[ 468], | 70.00th=[ 575], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1741, max= 4023, per=43.56%, avg=2479.29, stdev=912.15, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=11.80%, ctx=162, 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=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=144398: Thu Aug 6 13:12:57 2026 read: IOPS=1, BW=1601KiB/s (1640kB/s)(6144KiB/3837msec) clat (msec): min=7, max=259, avg=145.02, stdev=104.61 lat (msec): min=7, max=259, avg=145.02, stdev=104.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 56], | 30.00th=[ 56], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 222], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 2015, max= 3915, per=77.83%, avg=3163.67, stdev=1010.40, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1601KiB/s (1640kB/s)(6144KiB/3837msec); 0 zone resets clat (msec): min=297, max=641, avg=445.91, stdev=146.86 lat (msec): min=297, max=641, avg=446.04, stdev=146.89 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1741, max= 4031, per=41.36%, avg=2354.20, stdev=944.44, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 10=8.33%, 100=16.67%, 250=16.67%, 500=41.67%, 750=16.67% cpu : usr=0.05%, sys=9.52%, ctx=170, 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=144399: Thu Aug 6 13:12:57 2026 read: IOPS=0, BW=1016KiB/s (1041kB/s)(5120KiB/5037msec) clat (msec): min=3, max=400, avg=224.34, stdev=191.59 lat (msec): min=3, max=400, avg=224.34, stdev=191.59 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 31], 40.00th=[ 31], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 368], 80.00th=[ 368], 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= 2027, max= 5305, per=90.18%, avg=3666.00, stdev=2317.90, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1423KiB/s (1457kB/s)(7168KiB/5037msec); 0 zone resets clat (msec): min=222, max=752, avg=506.90, stdev=171.48 lat (msec): min=222, max=752, avg=507.03, stdev=171.48 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 422], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 502], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 667], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1735, max= 2048, per=34.66%, avg=1972.57, stdev=106.90, samples=7 iops : min= 1, max= 2, avg= 1.14, stdev= 0.38, samples=7 lat (msec) : 4=8.33%, 50=8.33%, 250=8.33%, 500=41.67%, 750=25.00% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=8.20%, ctx=147, 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=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=4066KiB/s (4163kB/s), 410KiB/s-2137KiB/s (419kB/s-2188kB/s), io=20.0MiB (20.0MB), run=3354-5037msec WRITE: bw=5692KiB/s (5829kB/s), 1423KiB/s-2048KiB/s (1457kB/s-2097kB/s), io=28.0MiB (29.4MB), run=3354-5037msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144392: Thu Aug 6 13:12:58 2026 read: IOPS=1, BW=1632KiB/s (1672kB/s)(7168KiB/4391msec) clat (msec): min=161, max=504, avg=297.72, stdev=141.17 lat (msec): min=161, max=504, avg=297.72, stdev=141.17 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 167], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 268], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 468], 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= 1980, max= 3136, per=59.74%, avg=2242.60, stdev=499.95, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1166KiB/s (1194kB/s)(5120KiB/4391msec); 0 zone resets clat (msec): min=160, max=961, avg=447.82, stdev=308.88 lat (msec): min=160, max=961, avg=448.03, stdev=309.05 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 2000, max= 2035, per=38.44%, avg=2020.25, stdev=15.00, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.07%, sys=2.80%, ctx=68, 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=144393: Thu Aug 6 13:12:58 2026 read: IOPS=0, BW=375KiB/s (384kB/s)(2048KiB/5455msec) clat (msec): min=137, max=287, avg=212.62, stdev=106.26 lat (msec): min=137, max=287, avg=212.62, stdev=106.26 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1508, max= 2019, per=46.98%, avg=1763.50, stdev=361.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1877KiB/s (1922kB/s)(10.0MiB/5455msec); 0 zone resets clat (msec): min=150, max=1015, avg=458.71, stdev=257.54 lat (msec): min=150, max=1015, avg=459.18, stdev=257.34 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 178], | 30.00th=[ 245], 40.00th=[ 368], 50.00th=[ 414], 60.00th=[ 456], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 651], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1976, max= 3961, per=43.66%, avg=2294.86, stdev=734.96, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 2000=8.33% cpu : usr=0.02%, sys=3.59%, ctx=98, 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=144395: Thu Aug 6 13:12:58 2026 read: IOPS=1, BW=1158KiB/s (1186kB/s)(6144KiB/5306msec) clat (msec): min=87, max=828, avg=346.14, stdev=275.79 lat (msec): min=87, max=828, avg=346.15, stdev=275.79 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 284], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 2015, max= 4000, per=88.58%, avg=3325.33, stdev=1134.95, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1158KiB/s (1186kB/s)(6144KiB/5306msec); 0 zone resets clat (msec): min=342, max=722, avg=502.53, stdev=162.61 lat (msec): min=342, max=722, avg=502.88, stdev=162.56 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 600], | 70.00th=[ 609], 80.00th=[ 609], 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= 1526, max= 2035, per=36.84%, avg=1936.33, stdev=202.27, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 100=8.33%, 250=16.67%, 500=33.33%, 750=33.33%, 1000=8.33% cpu : usr=0.06%, sys=2.85%, ctx=72, 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=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=144397: Thu Aug 6 13:12:58 2026 read: IOPS=1, BW=1024KiB/s (1049kB/s)(5120KiB/4999msec) clat (msec): min=201, max=529, avg=307.02, stdev=131.31 lat (msec): min=201, max=529, avg=307.02, stdev=131.31 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 2000, max= 3953, per=70.79%, avg=2657.33, stdev=1122.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1434KiB/s (1468kB/s)(7168KiB/4999msec); 0 zone resets clat (msec): min=211, max=607, avg=442.87, stdev=154.02 lat (msec): min=211, max=607, avg=443.36, stdev=154.11 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 334], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 447], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 584], 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= 1976, max= 4031, per=44.66%, avg=2347.33, stdev=825.26, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=2.66%, ctx=63, 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=3754KiB/s (3844kB/s), 375KiB/s-1632KiB/s (384kB/s-1672kB/s), io=20.0MiB (20.0MB), run=4391-5455msec WRITE: bw=5256KiB/s (5382kB/s), 1158KiB/s-1877KiB/s (1186kB/s-1922kB/s), io=28.0MiB (29.4MB), run=4391-5455msec 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=144407: Thu Aug 6 13:13:14 2026 read: IOPS=1, BW=4468KiB/s (4576kB/s)(12.0MiB/2750msec) clat (msec): min=818, max=956, avg=887.26, stdev=68.91 lat (msec): min=818, max=956, avg=887.27, stdev=68.91 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8062, max= 8143, per=100.00%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=12.51%, ctx=205, 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=144408: Thu Aug 6 13:13:14 2026 read: IOPS=0, BW=1011KiB/s (1035kB/s)(4096KiB/4052msec) clat (nsec): min=907481k, max=907481k, avg=907480628.00, stdev= 0.00 lat (nsec): min=907485k, max=907485k, avg=907485004.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2022KiB/s (2070kB/s)(8192KiB/4052msec); 0 zone resets clat (msec): min=1114, max=1933, avg=1524.20, stdev=578.77 lat (msec): min=1115, max=1933, avg=1524.60, stdev=578.64 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1938], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8062, max= 8062, per=99.70%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.02%, sys=3.85%, ctx=96, 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=144410: Thu Aug 6 13:13:14 2026 write: IOPS=0, BW=3097KiB/s (3171kB/s)(12.0MiB/3968msec); 0 zone resets clat (msec): min=218, max=1752, avg=1219.63, stdev=867.57 lat (msec): min=218, max=1753, avg=1220.25, stdev=867.74 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8062, max= 8062, per=99.70%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.55%, ctx=53, 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=144412: Thu Aug 6 13:13:14 2026 write: IOPS=1, BW=4265KiB/s (4368kB/s)(12.0MiB/2881msec); 0 zone resets clat (msec): min=749, max=1054, avg=866.39, stdev=164.53 lat (msec): min=750, max=1057, avg=867.71, stdev=165.95 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8062, max= 8143, per=100.00%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.48%, ctx=98, 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=4043KiB/s (4140kB/s), 1011KiB/s-4468KiB/s (1035kB/s-4576kB/s), io=16.0MiB (16.8MB), run=2750-4052msec WRITE: bw=8087KiB/s (8281kB/s), 2022KiB/s-4265KiB/s (2070kB/s-4368kB/s), io=32.0MiB (33.6MB), run=2881-4052msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144409: Thu Aug 6 13:13:14 2026 read: IOPS=0, BW=3298KiB/s (3377kB/s)(12.0MiB/3726msec) clat (msec): min=707, max=1470, avg=1151.60, stdev=396.34 lat (msec): min=707, max=1470, avg=1151.60, stdev=396.34 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.08%, sys=2.90%, ctx=64, 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=144411: Thu Aug 6 13:13:14 2026 read: IOPS=0, BW=998KiB/s (1022kB/s)(4096KiB/4105msec) clat (nsec): min=1889.1M, max=1889.1M, avg=1889057474.00, stdev= 0.00 lat (nsec): min=1889.1M, max=1889.1M, avg=1889061512.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1888], 5.00th=[ 1888], 10.00th=[ 1888], 20.00th=[ 1888], | 30.00th=[ 1888], 40.00th=[ 1888], 50.00th=[ 1888], 60.00th=[ 1888], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1996KiB/s (2044kB/s)(8192KiB/4105msec); 0 zone resets clat (msec): min=788, max=1174, avg=981.07, stdev=272.91 lat (msec): min=788, max=1178, avg=983.44, stdev=275.41 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.05%, sys=4.70%, ctx=77, 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=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=144413: Thu Aug 6 13:13:14 2026 write: IOPS=0, BW=3610KiB/s (3697kB/s)(12.0MiB/3404msec); 0 zone resets clat (msec): min=671, max=1369, avg=1114.05, stdev=385.15 lat (msec): min=671, max=1370, avg=1117.42, stdev=387.09 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 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= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.32%, ctx=87, 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=144414: Thu Aug 6 13:13:14 2026 write: IOPS=0, BW=3272KiB/s (3351kB/s)(12.0MiB/3755msec); 0 zone resets clat (msec): min=395, max=1749, avg=1126.98, stdev=683.64 lat (msec): min=396, max=1750, avg=1127.44, stdev=683.64 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7787, max= 8159, per=99.89%, avg=7973.00, stdev=263.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.50%, ctx=59, 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=3991KiB/s (4087kB/s), 998KiB/s-3298KiB/s (1022kB/s-3377kB/s), io=16.0MiB (16.8MB), run=3726-4105msec WRITE: bw=7982KiB/s (8174kB/s), 1996KiB/s-3610KiB/s (2044kB/s-3697kB/s), io=32.0MiB (33.6MB), run=3404-4105msec