== sanity test 398b: DIO and buffer IO race ============== 19:43:06 (1784763786) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.94567 s, 8.5 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=180326: Wed Jul 22 19:45:37 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5992KiB/130813msec) clat (usec): min=44, max=936912, avg=47763.66, stdev=38665.90 lat (usec): min=45, max=936914, avg=47811.11, stdev=38677.96 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 12518], 10.00th=[ 18482], 20.00th=[ 24773], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[152044], 99.50th=[214959], 99.90th=[287310], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 95, per=25.02%, avg=45.79, stdev=17.02, samples=256 iops : min= 1, max= 23, avg=10.80, stdev= 4.28, samples=256 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6296KiB/130813msec); 0 zone resets clat (usec): min=1184, max=254046, avg=37311.51, stdev=37273.90 lat (usec): min=1185, max=254047, avg=37317.21, stdev=37285.95 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1631], 10.00th=[ 2573], 20.00th=[ 5276], | 30.00th=[ 8979], 40.00th=[ 17695], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[111674], | 99.00th=[162530], 99.50th=[179307], 99.90th=[214959], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 7, max= 119, per=25.17%, avg=48.07, stdev=20.76, samples=256 iops : min= 1, max= 29, avg=11.37, stdev= 5.25, samples=256 lat (usec) : 50=0.10%, 100=1.66%, 250=0.16%, 500=0.03% lat (msec) : 2=3.74%, 4=4.13%, 10=8.72%, 20=8.53%, 50=40.30% lat (msec) : 100=26.43%, 250=6.02%, 500=0.13%, 1000=0.03% cpu : usr=0.10%, sys=5.78%, ctx=7088, 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=180327: Wed Jul 22 19:45:37 2026 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5940KiB/131175msec) clat (usec): min=35, max=867739, avg=48018.25, stdev=36074.64 lat (usec): min=35, max=867742, avg=48022.85, stdev=36075.27 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 13566], 10.00th=[ 19268], 20.00th=[ 25560], | 30.00th=[ 31065], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 65274], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[158335], 99.50th=[181404], 99.90th=[325059], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 95, per=24.64%, avg=45.10, stdev=17.67, samples=256 iops : min= 1, max= 23, avg=10.63, stdev= 4.42, samples=256 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6348KiB/131175msec); 0 zone resets clat (usec): min=1175, max=229157, avg=37394.26, stdev=36630.48 lat (usec): min=1176, max=229159, avg=37396.61, stdev=36630.66 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1663], 10.00th=[ 2606], 20.00th=[ 5473], | 30.00th=[ 9896], 40.00th=[ 20579], 50.00th=[ 28181], 60.00th=[ 36439], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[160433], 99.50th=[187696], 99.90th=[227541], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 104, per=25.21%, avg=48.14, stdev=18.61, samples=256 iops : min= 1, max= 26, avg=11.39, stdev= 4.70, samples=256 lat (usec) : 50=0.16%, 100=1.37%, 250=0.13%, 500=0.07%, 1000=0.07% lat (msec) : 2=3.55%, 4=4.56%, 10=7.62%, 20=8.20%, 50=41.41% lat (msec) : 100=26.82%, 250=5.99%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.79%, ctx=7087, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180328: Wed Jul 22 19:45:37 2026 read: IOPS=11, BW=47.4KiB/s (48.5kB/s)(6028KiB/127233msec) clat (usec): min=44, max=960946, avg=48017.97, stdev=38172.23 lat (usec): min=46, max=960947, avg=48019.72, stdev=38172.25 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 13304], 10.00th=[ 18744], 20.00th=[ 24511], | 30.00th=[ 29754], 40.00th=[ 35914], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 56361], 80.00th=[ 66847], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[164627], 99.50th=[202376], 99.90th=[252707], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 88, per=25.69%, avg=47.00, stdev=16.73, samples=250 iops : min= 1, max= 22, avg=11.12, stdev= 4.23, samples=250 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(6260KiB/127233msec); 0 zone resets clat (usec): min=1109, max=286697, avg=34792.63, stdev=34472.31 lat (usec): min=1110, max=286699, avg=34795.02, stdev=34472.18 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1713], 10.00th=[ 2671], 20.00th=[ 4883], | 30.00th=[ 9372], 40.00th=[ 17433], 50.00th=[ 25297], 60.00th=[ 34341], | 70.00th=[ 44303], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[152044], 99.50th=[170918], 99.90th=[191890], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 111, per=25.52%, avg=48.74, stdev=21.22, samples=250 iops : min= 1, max= 27, avg=11.55, stdev= 5.35, samples=250 lat (usec) : 50=0.03%, 100=1.30%, 250=0.23%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.07% lat (msec) : 2=3.22%, 4=5.27%, 10=7.62%, 20=10.03%, 50=39.97% lat (msec) : 100=26.95%, 250=5.05%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.94%, ctx=6995, 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=180329: Wed Jul 22 19:45:37 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(6052KiB/130341msec) clat (usec): min=34, max=228414, avg=47319.83, stdev=29126.80 lat (usec): min=34, max=228415, avg=47328.32, stdev=29131.66 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 13042], 10.00th=[ 19268], 20.00th=[ 25035], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 56361], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[141558], 99.50th=[170918], 99.90th=[208667], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 7, max= 93, per=25.37%, avg=46.43, stdev=16.48, samples=255 iops : min= 1, max= 23, avg=10.97, stdev= 4.18, samples=255 write: IOPS=11, BW=47.8KiB/s (48.0kB/s)(6236KiB/130341msec); 0 zone resets clat (usec): min=1123, max=935315, avg=37362.62, stdev=42491.40 lat (usec): min=1125, max=935319, avg=37365.31, stdev=42491.53 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1631], 10.00th=[ 2376], 20.00th=[ 5080], | 30.00th=[ 8848], 40.00th=[ 17171], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 49546], 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[154141], 99.50th=[168821], 99.90th=[214959], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 103, per=25.05%, avg=47.85, stdev=20.25, samples=255 iops : min= 1, max= 25, avg=11.33, stdev= 5.08, samples=255 lat (usec) : 50=0.10%, 100=1.33%, 250=0.20%, 500=0.07% lat (msec) : 2=3.91%, 4=4.56%, 10=7.78%, 20=9.21%, 50=39.78% lat (msec) : 100=27.15%, 250=5.89%, 1000=0.03% cpu : usr=0.10%, sys=5.68%, ctx=7006, 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=183KiB/s (187kB/s), 45.3KiB/s-47.4KiB/s (46.4kB/s-48.5kB/s), io=23.4MiB (24.6MB), run=127233-131175msec WRITE: bw=192KiB/s (196kB/s), 47.8KiB/s-49.2KiB/s (48.0kB/s-50.4kB/s), io=24.6MiB (25.7MB), run=127233-131175msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180322: Wed Jul 22 19:46:23 2026 read: IOPS=8, BW=34.5KiB/s (35.3kB/s)(5992KiB/173644msec) clat (msec): min=5, max=960, avg=45.58, stdev=45.93 lat (msec): min=5, max=960, avg=45.59, stdev=45.93 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 100], 95.00th=[ 129], | 99.00th=[ 194], 99.50th=[ 234], 99.90th=[ 321], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 119, per=25.76%, avg=34.78, stdev=22.50, samples=335 iops : min= 1, max= 29, avg= 8.04, stdev= 5.68, samples=335 write: IOPS=9, BW=36.3KiB/s (37.1kB/s)(6296KiB/173644msec); 0 zone resets clat (msec): min=12, max=343, avg=66.63, stdev=43.23 lat (msec): min=12, max=343, avg=66.64, stdev=43.23 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 63], | 70.00th=[ 77], 80.00th=[ 96], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 228], 99.50th=[ 251], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 111, per=25.69%, avg=36.23, stdev=20.76, samples=338 iops : min= 1, max= 27, avg= 8.39, stdev= 5.21, samples=338 lat (msec) : 10=1.07%, 20=11.82%, 50=45.67%, 100=27.34%, 250=13.70% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.07%, sys=2.38%, ctx=5056, 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=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=180323: Wed Jul 22 19:46:23 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(5940KiB/177238msec) clat (msec): min=6, max=938, avg=46.74, stdev=44.84 lat (msec): min=6, max=938, avg=46.75, stdev=44.85 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 100], 95.00th=[ 132], | 99.00th=[ 192], 99.50th=[ 209], 99.90th=[ 245], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 125, per=25.49%, avg=34.42, stdev=22.81, samples=335 iops : min= 1, max= 31, avg= 7.95, stdev= 5.75, samples=335 write: IOPS=8, BW=35.8KiB/s (36.7kB/s)(6348KiB/177238msec); 0 zone resets clat (msec): min=11, max=332, avg=67.67, stdev=45.25 lat (msec): min=11, max=332, avg=67.67, stdev=45.25 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 127], 95.00th=[ 148], | 99.00th=[ 239], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 111, per=25.35%, avg=35.74, stdev=20.70, samples=345 iops : min= 1, max= 27, avg= 8.28, stdev= 5.20, samples=345 lat (msec) : 10=0.78%, 20=11.39%, 50=45.90%, 100=26.86%, 250=14.68% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.07%, sys=2.27%, ctx=5131, 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=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=180324: Wed Jul 22 19:46:23 2026 read: IOPS=8, BW=34.5KiB/s (35.4kB/s)(6028KiB/174585msec) clat (msec): min=4, max=315, avg=45.91, stdev=39.24 lat (msec): min=4, max=315, avg=45.91, stdev=39.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 95], 95.00th=[ 126], | 99.00th=[ 188], 99.50th=[ 247], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7, max= 132, per=25.83%, avg=34.87, stdev=21.31, samples=336 iops : min= 1, max= 33, avg= 8.06, stdev= 5.37, samples=336 write: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6260KiB/174585msec); 0 zone resets clat (msec): min=14, max=980, avg=67.07, stdev=49.65 lat (msec): min=14, max=980, avg=67.07, stdev=49.65 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 63], | 70.00th=[ 78], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 159], | 99.00th=[ 224], 99.50th=[ 253], 99.90th=[ 347], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 111, per=25.24%, avg=35.59, stdev=20.95, samples=342 iops : min= 1, max= 27, avg= 8.24, stdev= 5.26, samples=342 lat (msec) : 10=0.94%, 20=10.68%, 50=47.49%, 100=27.54%, 250=12.86% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.06%, sys=2.38%, ctx=5194, 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=180325: Wed Jul 22 19:46:23 2026 read: IOPS=8, BW=34.5KiB/s (35.3kB/s)(6052KiB/175649msec) clat (msec): min=5, max=295, avg=45.24, stdev=38.37 lat (msec): min=5, max=295, avg=45.24, stdev=38.37 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 100], 95.00th=[ 125], | 99.00th=[ 197], 99.50th=[ 207], 99.90th=[ 253], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 111, per=25.95%, avg=35.03, stdev=22.31, samples=336 iops : min= 1, max= 27, avg= 8.10, stdev= 5.63, samples=336 write: IOPS=8, BW=35.5KiB/s (36.4kB/s)(6236KiB/175649msec); 0 zone resets clat (msec): min=10, max=991, avg=68.47, stdev=50.95 lat (msec): min=10, max=991, avg=68.48, stdev=50.95 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 96], 90.00th=[ 130], 95.00th=[ 161], | 99.00th=[ 232], 99.50th=[ 255], 99.90th=[ 342], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 118, per=25.06%, avg=35.33, stdev=20.67, samples=343 iops : min= 1, max= 29, avg= 8.17, stdev= 5.21, samples=343 lat (msec) : 10=1.04%, 20=11.59%, 50=45.51%, 100=27.77%, 250=13.74% lat (msec) : 500=0.33%, 1000=0.03% cpu : usr=0.06%, sys=2.34%, ctx=5101, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=135KiB/s (139kB/s), 33.5KiB/s-34.5KiB/s (34.3kB/s-35.4kB/s), io=23.4MiB (24.6MB), run=173644-177238msec WRITE: bw=142KiB/s (145kB/s), 35.5KiB/s-36.3KiB/s (36.4kB/s-37.1kB/s), io=24.6MiB (25.7MB), run=173644-177238msec 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=180373: Wed Jul 22 19:47:11 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(5920KiB/37636msec) clat (usec): min=55, max=215409, avg=53725.65, stdev=32151.19 lat (usec): min=56, max=215410, avg=53731.08, stdev=32152.62 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 82], 10.00th=[ 17695], 20.00th=[ 28705], | 30.00th=[ 35914], 40.00th=[ 41157], 50.00th=[ 50594], 60.00th=[ 58459], | 70.00th=[ 66323], 80.00th=[ 80217], 90.00th=[ 96994], 95.00th=[112722], | 99.00th=[131597], 99.50th=[158335], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 318, per=24.98%, avg=155.65, stdev=61.37, samples=74 iops : min= 1, max= 19, avg= 8.89, stdev= 3.88, samples=74 write: IOPS=10, BW=169KiB/s (173kB/s)(6368KiB/37636msec); 0 zone resets clat (usec): min=1840, max=191574, avg=44292.98, stdev=40990.13 lat (usec): min=1843, max=191577, avg=44304.41, stdev=40987.19 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 3326], 10.00th=[ 5342], 20.00th=[ 8586], | 30.00th=[ 12911], 40.00th=[ 23200], 50.00th=[ 31589], 60.00th=[ 41681], | 70.00th=[ 57410], 80.00th=[ 76022], 90.00th=[102237], 95.00th=[137364], | 99.00th=[173016], 99.50th=[177210], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 410, per=25.68%, avg=168.43, stdev=64.40, samples=74 iops : min= 1, max= 25, avg= 9.70, stdev= 4.08, samples=74 lat (usec) : 100=2.86%, 250=0.78%, 500=0.13%, 1000=0.26% lat (msec) : 2=0.65%, 4=2.86%, 10=8.59%, 20=7.94%, 50=32.81% lat (msec) : 100=33.59%, 250=9.51% cpu : usr=0.09%, sys=6.26%, ctx=1874, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180374: Wed Jul 22 19:47:11 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(5744KiB/37989msec) clat (usec): min=57, max=201985, avg=56329.46, stdev=32587.56 lat (usec): min=59, max=201987, avg=56353.89, stdev=32586.55 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 13304], 10.00th=[ 22938], 20.00th=[ 32113], | 30.00th=[ 37487], 40.00th=[ 43254], 50.00th=[ 51119], 60.00th=[ 60031], | 70.00th=[ 68682], 80.00th=[ 79168], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[170918], 99.50th=[185598], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 287, per=24.12%, avg=150.24, stdev=63.43, samples=75 iops : min= 1, max= 17, avg= 8.55, stdev= 4.01, samples=75 write: IOPS=10, BW=172KiB/s (176kB/s)(6544KiB/37989msec); 0 zone resets clat (usec): min=1836, max=209351, avg=42909.20, stdev=36898.37 lat (usec): min=1838, max=209354, avg=42918.48, stdev=36903.26 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 11], | 30.00th=[ 16], 40.00th=[ 24], 50.00th=[ 33], 60.00th=[ 44], | 70.00th=[ 54], 80.00th=[ 74], 90.00th=[ 95], 95.00th=[ 117], | 99.00th=[ 157], 99.50th=[ 165], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 380, per=26.09%, avg=171.17, stdev=72.02, samples=75 iops : min= 1, max= 23, avg= 9.88, stdev= 4.53, samples=75 lat (usec) : 100=1.17%, 250=0.91%, 750=0.13% lat (msec) : 2=0.26%, 4=3.65%, 10=5.86%, 20=11.07%, 50=34.24% lat (msec) : 100=34.51%, 250=8.20% cpu : usr=0.11%, sys=6.19%, ctx=1955, 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=180375: Wed Jul 22 19:47:11 2026 read: IOPS=10, BW=163KiB/s (167kB/s)(6256KiB/38387msec) clat (usec): min=50, max=178002, avg=54054.56, stdev=34178.55 lat (usec): min=51, max=178003, avg=54056.99, stdev=34178.28 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 91], 10.00th=[ 17171], 20.00th=[ 28181], | 30.00th=[ 34866], 40.00th=[ 40109], 50.00th=[ 48497], 60.00th=[ 55837], | 70.00th=[ 66847], 80.00th=[ 81265], 90.00th=[103285], 95.00th=[117965], | 99.00th=[156238], 99.50th=[175113], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 62, max= 319, per=26.03%, avg=162.16, stdev=61.26, samples=75 iops : min= 3, max= 19, avg= 9.29, stdev= 3.85, samples=75 write: IOPS=9, BW=157KiB/s (161kB/s)(6032KiB/38387msec); 0 zone resets clat (usec): min=1838, max=220436, avg=45256.20, stdev=39033.51 lat (usec): min=1840, max=220439, avg=45262.91, stdev=39029.69 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 10], | 30.00th=[ 17], 40.00th=[ 28], 50.00th=[ 39], 60.00th=[ 49], | 70.00th=[ 59], 80.00th=[ 72], 90.00th=[ 104], 95.00th=[ 121], | 99.00th=[ 171], 99.50th=[ 209], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 31, max= 319, per=23.78%, avg=156.03, stdev=63.25, samples=74 iops : min= 1, max= 19, avg= 8.92, stdev= 3.99, samples=74 lat (usec) : 100=3.12%, 250=1.17% lat (msec) : 2=0.39%, 4=2.34%, 10=8.07%, 20=7.68%, 50=34.11% lat (msec) : 100=32.03%, 250=11.07% cpu : usr=0.09%, sys=5.91%, ctx=1920, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180376: Wed Jul 22 19:47:11 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(6032KiB/37190msec) clat (usec): min=51, max=177698, avg=51917.68, stdev=32085.91 lat (usec): min=52, max=177699, avg=51920.32, stdev=32086.09 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 86], 10.00th=[ 3720], 20.00th=[ 27657], | 30.00th=[ 34866], 40.00th=[ 42730], 50.00th=[ 49021], 60.00th=[ 56361], | 70.00th=[ 64226], 80.00th=[ 76022], 90.00th=[ 92799], 95.00th=[108528], | 99.00th=[143655], 99.50th=[173016], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 31, max= 316, per=26.02%, avg=162.10, stdev=61.87, samples=73 iops : min= 1, max= 19, avg= 9.34, stdev= 3.91, samples=73 write: IOPS=10, BW=168KiB/s (172kB/s)(6256KiB/37190msec); 0 zone resets clat (usec): min=1642, max=244684, avg=44382.36, stdev=41134.16 lat (usec): min=1644, max=244687, avg=44387.54, stdev=41136.72 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 14], 40.00th=[ 23], 50.00th=[ 34], 60.00th=[ 45], | 70.00th=[ 58], 80.00th=[ 75], 90.00th=[ 110], 95.00th=[ 130], | 99.00th=[ 165], 99.50th=[ 224], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 62, max= 347, per=25.66%, avg=168.34, stdev=66.88, samples=73 iops : min= 3, max= 21, avg= 9.74, stdev= 4.25, samples=73 lat (usec) : 100=2.99%, 250=1.43%, 500=0.13%, 750=0.13% lat (msec) : 2=0.39%, 4=2.86%, 10=9.51%, 20=8.20%, 50=33.07% lat (msec) : 100=32.03%, 250=9.24% cpu : usr=0.09%, sys=6.50%, ctx=1915, 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=624KiB/s (639kB/s), 151KiB/s-163KiB/s (155kB/s-167kB/s), io=23.4MiB (24.5MB), run=37190-38387msec WRITE: bw=656KiB/s (672kB/s), 157KiB/s-172KiB/s (161kB/s-176kB/s), io=24.6MiB (25.8MB), run=37190-38387msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180369: Wed Jul 22 19:47:21 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(5920KiB/48122msec) clat (msec): min=8, max=262, avg=49.02, stdev=41.17 lat (msec): min=8, max=262, avg=49.03, stdev=41.17 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 52], 80.00th=[ 69], 90.00th=[ 108], 95.00th=[ 138], | 99.00th=[ 209], 99.50th=[ 228], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 476, per=25.68%, avg=125.04, stdev=90.88, samples=93 iops : min= 1, max= 29, avg= 7.04, stdev= 5.79, samples=93 write: IOPS=8, BW=132KiB/s (136kB/s)(6368KiB/48122msec); 0 zone resets clat (msec): min=16, max=285, avg=74.44, stdev=49.39 lat (msec): min=16, max=285, avg=74.44, stdev=49.39 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 70], | 70.00th=[ 92], 80.00th=[ 115], 90.00th=[ 146], 95.00th=[ 176], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 414, per=25.99%, avg=133.06, stdev=81.01, samples=94 iops : min= 1, max= 25, avg= 7.55, stdev= 5.13, samples=94 lat (msec) : 10=0.13%, 20=10.94%, 50=44.01%, 100=26.56%, 250=18.10% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=2.41%, ctx=1302, 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=180370: Wed Jul 22 19:47:21 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(5744KiB/49160msec) clat (msec): min=8, max=239, avg=50.73, stdev=45.34 lat (msec): min=8, max=239, avg=50.73, stdev=45.34 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 78], 90.00th=[ 114], 95.00th=[ 153], | 99.00th=[ 218], 99.50th=[ 239], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 30, max= 447, per=25.32%, avg=123.33, stdev=93.00, samples=91 iops : min= 1, max= 27, avg= 6.95, stdev= 5.85, samples=91 write: IOPS=8, BW=133KiB/s (136kB/s)(6544KiB/49160msec); 0 zone resets clat (msec): min=15, max=334, avg=74.95, stdev=53.44 lat (msec): min=15, max=334, avg=74.95, stdev=53.44 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 90], 80.00th=[ 116], 90.00th=[ 144], 95.00th=[ 186], | 99.00th=[ 241], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 415, per=26.97%, avg=138.11, stdev=88.13, samples=93 iops : min= 1, max= 25, avg= 7.87, stdev= 5.58, samples=93 lat (msec) : 10=0.26%, 20=11.59%, 50=43.36%, 100=25.00%, 250=19.27% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.40%, ctx=1364, 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=180371: Wed Jul 22 19:47:21 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(6256KiB/48148msec) clat (msec): min=6, max=251, avg=52.74, stdev=44.51 lat (msec): min=6, max=251, avg=52.74, stdev=44.52 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 54], 80.00th=[ 83], 90.00th=[ 124], 95.00th=[ 148], | 99.00th=[ 197], 99.50th=[ 236], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 384, per=26.70%, avg=130.01, stdev=92.61, samples=95 iops : min= 1, max= 24, avg= 7.36, stdev= 5.88, samples=95 write: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48148msec); 0 zone resets clat (msec): min=18, max=291, avg=72.53, stdev=49.13 lat (msec): min=18, max=291, avg=72.53, stdev=49.13 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 57], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 109], 90.00th=[ 155], 95.00th=[ 176], | 99.00th=[ 234], 99.50th=[ 268], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 476, per=24.82%, avg=127.08, stdev=82.47, samples=93 iops : min= 1, max= 29, avg= 7.17, stdev= 5.23, samples=93 lat (msec) : 10=0.13%, 20=9.64%, 50=46.48%, 100=24.35%, 250=18.88% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.50%, ctx=1292, 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=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=180372: Wed Jul 22 19:47:21 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47683msec) clat (msec): min=8, max=279, avg=49.49, stdev=42.47 lat (msec): min=8, max=279, avg=49.50, stdev=42.47 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 71], 90.00th=[ 109], 95.00th=[ 148], | 99.00th=[ 203], 99.50th=[ 220], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 442, per=26.56%, avg=129.33, stdev=86.64, samples=91 iops : min= 1, max= 27, avg= 7.32, stdev= 5.50, samples=91 write: IOPS=8, BW=131KiB/s (134kB/s)(6256KiB/47683msec); 0 zone resets clat (msec): min=15, max=315, avg=74.07, stdev=49.73 lat (msec): min=15, max=315, avg=74.07, stdev=49.73 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 109], 90.00th=[ 146], 95.00th=[ 176], | 99.00th=[ 226], 99.50th=[ 264], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 477, per=25.81%, avg=132.17, stdev=81.51, samples=93 iops : min= 1, max= 29, avg= 7.48, stdev= 5.16, samples=93 lat (msec) : 10=0.13%, 20=10.42%, 50=45.44%, 100=25.91%, 250=17.71% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.51%, ctx=1319, 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=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=487KiB/s (499kB/s), 117KiB/s-130KiB/s (120kB/s-133kB/s), io=23.4MiB (24.5MB), run=47683-49160msec WRITE: bw=513KiB/s (525kB/s), 125KiB/s-133KiB/s (128kB/s-136kB/s), io=24.6MiB (25.8MB), run=47683-49160msec 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=180390: Wed Jul 22 19:47:37 2026 read: IOPS=1, BW=1673KiB/s (1713kB/s)(7168KiB/4285msec) clat (usec): min=681, max=1128.2k, avg=334617.01, stdev=369607.16 lat (usec): min=683, max=1128.2k, avg=334623.21, stdev=369619.77 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], | 20.00th=[ 143655], 30.00th=[ 145753], 40.00th=[ 145753], | 50.00th=[ 256902], 60.00th=[ 329253], 70.00th=[ 329253], | 80.00th=[ 337642], 90.00th=[1132463], 95.00th=[1132463], | 99.00th=[1132463], 99.50th=[1132463], 99.90th=[1132463], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 1984, max= 4079, per=62.15%, avg=2434.40, stdev=919.66, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1195KiB/s (1224kB/s)(5120KiB/4285msec); 0 zone resets clat (msec): min=117, max=598, avg=373.36, stdev=204.11 lat (msec): min=120, max=598, avg=374.08, stdev=203.15 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1984, max= 4055, per=49.10%, avg=2692.67, stdev=1180.14, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=13.77%, ctx=391, 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=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=180391: Wed Jul 22 19:47:37 2026 read: IOPS=0, BW=392KiB/s (401kB/s)(2048KiB/5228msec) clat (msec): min=232, max=309, avg=270.98, stdev=54.37 lat (msec): min=232, max=309, avg=270.98, stdev=54.37 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 1965, max= 2003, per=50.65%, avg=1984.00, stdev=26.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1959KiB/s (2006kB/s)(10.0MiB/5228msec); 0 zone resets clat (msec): min=98, max=1376, avg=452.18, stdev=491.74 lat (msec): min=98, max=1376, avg=452.34, stdev=491.79 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 112], | 30.00th=[ 127], 40.00th=[ 241], 50.00th=[ 255], 60.00th=[ 284], | 70.00th=[ 300], 80.00th=[ 368], 90.00th=[ 1368], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 2003, max= 4096, per=64.93%, avg=3561.00, stdev=885.19, samples=5 iops : min= 1, max= 4, avg= 2.80, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 2000=16.67% cpu : usr=0.00%, sys=12.70%, ctx=171, 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=180392: Wed Jul 22 19:47:37 2026 read: IOPS=1, BW=1443KiB/s (1477kB/s)(6144KiB/4259msec) clat (usec): min=700, max=378426, avg=64174.99, stdev=153952.70 lat (usec): min=702, max=378427, avg=64176.21, stdev=153952.69 clat percentiles (usec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 791], | 30.00th=[ 791], 40.00th=[ 865], 50.00th=[ 865], 60.00th=[ 2147], | 70.00th=[ 2147], 80.00th=[ 2147], 90.00th=[379585], 95.00th=[379585], | 99.00th=[379585], 99.50th=[379585], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 3908, max= 4055, per=100.00%, avg=3981.50, stdev=103.94, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1443KiB/s (1477kB/s)(6144KiB/4259msec); 0 zone resets clat (msec): min=195, max=2320, avg=629.67, stdev=832.15 lat (msec): min=195, max=2320, avg=629.74, stdev=832.14 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 338], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 1954, max= 2775, per=41.06%, avg=2252.00, stdev=454.40, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 lat (usec) : 750=8.33%, 1000=16.67% lat (msec) : 4=16.67%, 250=16.67%, 500=33.33%, >=2000=8.33% cpu : usr=0.02%, sys=11.04%, ctx=73, 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=180393: Wed Jul 22 19:47:37 2026 read: IOPS=1, BW=1335KiB/s (1367kB/s)(5120KiB/3835msec) clat (usec): min=671, max=205724, avg=43163.69, stdev=90890.89 lat (usec): min=673, max=205725, avg=43165.05, stdev=90890.55 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], 20.00th=[ 668], | 30.00th=[ 1696], 40.00th=[ 1696], 50.00th=[ 2376], 60.00th=[ 2376], | 70.00th=[ 5342], 80.00th=[ 5342], 90.00th=[206570], 95.00th=[206570], | 99.00th=[206570], 99.50th=[206570], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 7922, max= 7922, per=100.00%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1869KiB/s (1914kB/s)(7168KiB/3835msec); 0 zone resets clat (msec): min=148, max=1536, avg=512.25, stdev=495.97 lat (msec): min=149, max=1538, avg=512.75, stdev=496.49 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 184], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 292], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 751], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 1932, max= 4096, per=43.74%, avg=2398.60, stdev=949.59, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 10=8.33%, 250=33.33%, 500=16.67% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.62%, ctx=86, 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=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=3917KiB/s (4011kB/s), 392KiB/s-1673KiB/s (401kB/s-1713kB/s), io=20.0MiB (20.0MB), run=3835-5228msec WRITE: bw=5484KiB/s (5616kB/s), 1195KiB/s-1959KiB/s (1224kB/s-2006kB/s), io=28.0MiB (29.4MB), run=3835-5228msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180394: Wed Jul 22 19:47:38 2026 read: IOPS=1, BW=1190KiB/s (1218kB/s)(7168KiB/6024msec) clat (msec): min=85, max=2125, avg=614.23, stdev=735.23 lat (msec): min=85, max=2125, avg=614.23, stdev=735.23 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 113], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 355], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 995], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 2011, max= 4063, per=74.55%, avg=2534.00, stdev=1019.38, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=850KiB/s (870kB/s)(5120KiB/6024msec); 0 zone resets clat (msec): min=78, max=1038, avg=297.83, stdev=414.93 lat (msec): min=78, max=1038, avg=297.92, stdev=414.96 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 148], 80.00th=[ 148], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 2031, max= 6035, per=84.74%, avg=4033.00, stdev=2831.26, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.96%, ctx=80, 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=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=180395: Wed Jul 22 19:47:38 2026 read: IOPS=0, BW=368KiB/s (377kB/s)(2048KiB/5559msec) clat (msec): min=104, max=133, avg=118.57, stdev=20.56 lat (msec): min=104, max=133, avg=118.57, stdev=20.56 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 105], 60.00th=[ 133], | 70.00th=[ 133], 80.00th=[ 133], 90.00th=[ 133], 95.00th=[ 133], | 99.00th=[ 133], 99.50th=[ 133], 99.90th=[ 133], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 1473, max= 2031, per=51.54%, avg=1752.00, stdev=394.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1842KiB/s (1886kB/s)(10.0MiB/5559msec); 0 zone resets clat (msec): min=102, max=1875, avg=487.04, stdev=525.29 lat (msec): min=103, max=1875, avg=487.25, stdev=525.23 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 218], 50.00th=[ 355], 60.00th=[ 435], | 70.00th=[ 514], 80.00th=[ 531], 90.00th=[ 634], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 1892, max= 4071, per=49.44%, avg=2352.67, stdev=843.86, samples=6 iops : min= 1, max= 3, avg= 1.50, stdev= 0.84, samples=6 lat (msec) : 250=50.00%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.05%, sys=5.85%, ctx=112, 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=180396: Wed Jul 22 19:47:38 2026 read: IOPS=1, BW=1098KiB/s (1124kB/s)(6144KiB/5597msec) clat (msec): min=122, max=788, avg=330.65, stdev=283.05 lat (msec): min=122, max=788, avg=330.66, stdev=283.05 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 131], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 228], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 2027, max= 4079, per=74.94%, avg=2547.25, stdev=1021.20, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1098KiB/s (1124kB/s)(6144KiB/5597msec); 0 zone resets clat (msec): min=99, max=1972, avg=591.21, stdev=702.15 lat (msec): min=99, max=1972, avg=591.29, stdev=702.16 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 342], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 1889, max= 4055, per=50.72%, avg=2414.00, stdev=919.75, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=5.15%, ctx=152, 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=180397: Wed Jul 22 19:47:38 2026 read: IOPS=0, BW=977KiB/s (1000kB/s)(5120KiB/5242msec) clat (msec): min=87, max=267, avg=202.44, stdev=74.82 lat (msec): min=87, max=267, avg=202.44, stdev=74.82 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 2031, max= 4087, per=79.92%, avg=2716.33, stdev=1187.03, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1367KiB/s (1400kB/s)(7168KiB/5242msec); 0 zone resets clat (msec): min=249, max=2114, avg=566.26, stdev=684.07 lat (msec): min=249, max=2114, avg=566.67, stdev=683.94 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 279], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 313], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 380], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 1434, max= 2048, per=39.66%, avg=1887.20, stdev=261.07, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, >=2000=8.33% cpu : usr=0.00%, sys=5.13%, ctx=100, 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=3400KiB/s (3481kB/s), 368KiB/s-1190KiB/s (377kB/s-1218kB/s), io=20.0MiB (20.0MB), run=5242-6024msec WRITE: bw=4760KiB/s (4874kB/s), 850KiB/s-1842KiB/s (870kB/s-1886kB/s), io=28.0MiB (29.4MB), run=5242-6024msec 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=180404: Wed Jul 22 19:47:54 2026 read: IOPS=2, BW=11.6MiB/s (12.1MB/s)(12.0MiB/1036msec) clat (msec): min=211, max=445, avg=324.00, stdev=117.25 lat (msec): min=211, max=445, avg=324.00, stdev=117.25 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7288, max= 7288, per=76.78%, avg=7288.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=13.72%, ctx=47, 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=180405: Wed Jul 22 19:47:54 2026 read: IOPS=0, BW=2373KiB/s (2430kB/s)(4096KiB/1726msec) clat (nsec): min=512531k, max=512531k, avg=512531342.00, stdev= 0.00 lat (nsec): min=512534k, max=512534k, avg=512534078.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7772, max= 7772, per=81.88%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4746KiB/s (4860kB/s)(8192KiB/1726msec); 0 zone resets clat (msec): min=220, max=920, avg=570.20, stdev=495.07 lat (msec): min=220, max=920, avg=570.41, stdev=495.07 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8031, max= 8031, per=89.46%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=7.36%, ctx=57, 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=180406: Wed Jul 22 19:47:54 2026 write: IOPS=0, BW=3367KiB/s (3447kB/s)(12.0MiB/3650msec); 0 zone resets clat (msec): min=255, max=2199, avg=1214.60, stdev=972.06 lat (msec): min=256, max=2199, avg=1214.92, stdev=971.98 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8143, max= 8143, per=90.71%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.67%, ctx=89, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180407: Wed Jul 22 19:47:54 2026 write: IOPS=1, BW=4123KiB/s (4222kB/s)(12.0MiB/2980msec); 0 zone resets clat (msec): min=340, max=1725, avg=990.87, stdev=696.51 lat (msec): min=340, max=1726, avg=991.57, stdev=696.52 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8031, max= 8126, per=89.99%, avg=8078.50, stdev=67.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.96%, ctx=44, 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=9492KiB/s (9720kB/s), 2373KiB/s-11.6MiB/s (2430kB/s-12.1MB/s), io=16.0MiB (16.8MB), run=1036-1726msec WRITE: bw=8978KiB/s (9193kB/s), 3367KiB/s-4746KiB/s (3447kB/s-4860kB/s), io=32.0MiB (33.6MB), run=1726-3650msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180409: Wed Jul 22 19:47:54 2026 read: IOPS=1, BW=4653KiB/s (4764kB/s)(12.0MiB/2641msec) clat (msec): min=809, max=862, avg=840.40, stdev=27.42 lat (msec): min=809, max=862, avg=840.40, stdev=27.42 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7968, max= 8015, per=100.00%, avg=7991.50, stdev=33.23, 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=17.61%, ctx=321, 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=180410: Wed Jul 22 19:47:54 2026 read: IOPS=0, BW=1750KiB/s (1792kB/s)(4096KiB/2340msec) clat (nsec): min=1135.7M, max=1135.7M, avg=1135743040.00, stdev= 0.00 lat (nsec): min=1135.7M, max=1135.7M, avg=1135744855.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3501KiB/s (3585kB/s)(8192KiB/2340msec); 0 zone resets clat (msec): min=536, max=665, avg=600.96, stdev=91.22 lat (msec): min=536, max=666, avg=601.67, stdev=91.72 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 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=84.16%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.93%, ctx=185, 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=180411: Wed Jul 22 19:47:54 2026 write: IOPS=0, BW=3607KiB/s (3693kB/s)(12.0MiB/3407msec); 0 zone resets clat (msec): min=192, max=2110, avg=1134.81, stdev=959.09 lat (msec): min=193, max=2110, avg=1135.16, stdev=959.09 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 2106], 80.00th=[ 2106], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 8015, max= 8159, per=84.09%, avg=8087.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.79%, ctx=62, 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=180412: Wed Jul 22 19:47:54 2026 write: IOPS=1, BW=4544KiB/s (4653kB/s)(12.0MiB/2704msec); 0 zone resets clat (msec): min=709, max=1109, avg=899.51, stdev=200.80 lat (msec): min=711, max=1110, avg=900.73, stdev=200.34 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7846, max= 7907, per=81.90%, avg=7876.50, stdev=43.13, 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=6.77%, ctx=49, 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=6204KiB/s (6353kB/s), 1750KiB/s-4653KiB/s (1792kB/s-4764kB/s), io=16.0MiB (16.8MB), run=2340-2641msec WRITE: bw=9618KiB/s (9849kB/s), 3501KiB/s-4544KiB/s (3585kB/s-4653kB/s), io=32.0MiB (33.6MB), run=2340-3407msec