== sanity test 398b: DIO and buffer IO race ============== 12:36:49 (1786466209) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.70172 s, 10.7 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=154717: Tue Aug 11 12:38:55 2026 read: IOPS=13, BW=55.9KiB/s (57.2kB/s)(5992KiB/107188msec) clat (usec): min=32, max=738298, avg=35442.01, stdev=32201.64 lat (usec): min=32, max=738300, avg=35444.79, stdev=32201.30 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 139], 20.00th=[ 16712], | 30.00th=[ 20841], 40.00th=[ 25297], 50.00th=[ 30016], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 53216], 90.00th=[ 66323], 95.00th=[ 79168], | 99.00th=[115868], 99.50th=[164627], 99.90th=[337642], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 6, max= 126, per=25.91%, avg=55.71, stdev=23.63, samples=211 iops : min= 1, max= 31, avg=13.31, stdev= 5.96, samples=211 write: IOPS=14, BW=58.7KiB/s (60.1kB/s)(6296KiB/107188msec); 0 zone resets clat (usec): min=992, max=335776, avg=34130.74, stdev=34397.13 lat (usec): min=994, max=335779, avg=34132.53, stdev=34397.05 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1958], 20.00th=[ 4178], | 30.00th=[ 8455], 40.00th=[ 16188], 50.00th=[ 25560], 60.00th=[ 34866], | 70.00th=[ 44827], 80.00th=[ 58459], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[154141], 99.50th=[175113], 99.90th=[248513], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 7, max= 136, per=26.03%, avg=58.84, stdev=22.66, samples=210 iops : min= 1, max= 34, avg=14.10, stdev= 5.71, samples=210 lat (usec) : 50=0.81%, 100=3.71%, 250=0.52%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.14%, 4=4.92%, 10=7.36%, 20=12.79%, 50=40.49% lat (msec) : 100=20.70%, 250=3.16%, 500=0.10%, 750=0.03% cpu : usr=0.09%, sys=6.28%, ctx=6572, 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=154719: Tue Aug 11 12:38:55 2026 read: IOPS=13, BW=54.6KiB/s (55.9kB/s)(5940KiB/108767msec) clat (usec): min=33, max=272035, avg=35330.68, stdev=26028.58 lat (usec): min=33, max=272037, avg=35332.15, stdev=26028.45 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 322], 20.00th=[ 17171], | 30.00th=[ 21365], 40.00th=[ 25822], 50.00th=[ 30540], 60.00th=[ 35914], | 70.00th=[ 42730], 80.00th=[ 52167], 90.00th=[ 68682], 95.00th=[ 81265], | 99.00th=[115868], 99.50th=[143655], 99.90th=[242222], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 6, max= 127, per=25.27%, avg=54.32, stdev=22.34, samples=214 iops : min= 1, max= 31, avg=12.97, stdev= 5.60, samples=214 write: IOPS=14, BW=58.4KiB/s (59.8kB/s)(6348KiB/108767msec); 0 zone resets clat (usec): min=868, max=714969, avg=35227.34, stdev=39765.18 lat (usec): min=870, max=714971, avg=35229.80, stdev=39764.48 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1385], 10.00th=[ 1827], 20.00th=[ 3949], | 30.00th=[ 7111], 40.00th=[ 15401], 50.00th=[ 25560], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 59507], 90.00th=[ 79168], 95.00th=[ 99091], | 99.00th=[149947], 99.50th=[202376], 99.90th=[312476], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 140, per=25.66%, avg=58.00, stdev=25.14, samples=214 iops : min= 1, max= 35, avg=13.90, stdev= 6.31, samples=214 lat (usec) : 50=0.55%, 100=3.94%, 250=0.33%, 500=0.16%, 1000=0.13% lat (msec) : 2=5.66%, 4=4.75%, 10=7.81%, 20=12.24%, 50=39.16% lat (msec) : 100=22.01%, 250=3.06%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=6.33%, ctx=6516, 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=154720: Tue Aug 11 12:38:55 2026 read: IOPS=13, BW=55.9KiB/s (57.2kB/s)(6028KiB/107869msec) clat (usec): min=30, max=782810, avg=34950.20, stdev=31830.37 lat (usec): min=30, max=782811, avg=34954.44, stdev=31830.25 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 159], 20.00th=[ 16319], | 30.00th=[ 20841], 40.00th=[ 25035], 50.00th=[ 29492], 60.00th=[ 34866], | 70.00th=[ 42206], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 79168], | 99.00th=[123208], 99.50th=[143655], 99.90th=[206570], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 111, per=26.03%, avg=55.96, stdev=21.68, samples=211 iops : min= 1, max= 27, avg=13.39, stdev= 5.47, samples=211 write: IOPS=14, BW=58.0KiB/s (59.4kB/s)(6260KiB/107869msec); 0 zone resets clat (usec): min=962, max=488527, avg=35026.19, stdev=36296.24 lat (usec): min=963, max=488529, avg=35030.66, stdev=36298.03 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 2024], 20.00th=[ 4359], | 30.00th=[ 7898], 40.00th=[ 16188], 50.00th=[ 25822], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[145753], 99.50th=[179307], 99.90th=[295699], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 15, max= 135, per=25.56%, avg=57.76, stdev=21.96, samples=212 iops : min= 3, max= 33, avg=13.84, stdev= 5.51, samples=212 lat (usec) : 50=0.55%, 100=4.04%, 250=0.59%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.18%, 4=4.59%, 10=7.78%, 20=12.83%, 50=39.42% lat (msec) : 100=21.55%, 250=3.22%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.95%, ctx=6432, 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=154723: Tue Aug 11 12:38:55 2026 read: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6052KiB/111195msec) clat (usec): min=32, max=552108, avg=35848.16, stdev=29379.63 lat (usec): min=32, max=552110, avg=35851.05, stdev=29380.06 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 101], 20.00th=[ 16909], | 30.00th=[ 21365], 40.00th=[ 26084], 50.00th=[ 30540], 60.00th=[ 36963], | 70.00th=[ 44827], 80.00th=[ 54264], 90.00th=[ 67634], 95.00th=[ 79168], | 99.00th=[125305], 99.50th=[156238], 99.90th=[240124], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 7, max= 143, per=25.66%, avg=55.16, stdev=23.96, samples=214 iops : min= 1, max= 35, avg=13.19, stdev= 6.03, samples=214 write: IOPS=14, BW=56.1KiB/s (57.4kB/s)(6236KiB/111195msec); 0 zone resets clat (usec): min=827, max=906602, avg=36282.38, stdev=43887.89 lat (usec): min=827, max=906605, avg=36284.96, stdev=43887.85 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1401], 10.00th=[ 1909], 20.00th=[ 4146], | 30.00th=[ 8094], 40.00th=[ 17171], 50.00th=[ 26608], 60.00th=[ 35390], | 70.00th=[ 46400], 80.00th=[ 61080], 90.00th=[ 80217], 95.00th=[105382], | 99.00th=[179307], 99.50th=[204473], 99.90th=[429917], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 15, max= 142, per=24.89%, avg=56.25, stdev=21.75, samples=216 iops : min= 3, max= 35, avg=13.46, stdev= 5.50, samples=216 lat (usec) : 50=0.85%, 100=4.07%, 250=0.59%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=5.21%, 4=4.65%, 10=7.16%, 20=11.56%, 50=39.65% lat (msec) : 100=21.81%, 250=3.81%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=6.01%, ctx=6692, 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=216KiB/s (221kB/s), 54.4KiB/s-55.9KiB/s (55.7kB/s-57.2kB/s), io=23.4MiB (24.6MB), run=107188-111195msec WRITE: bw=226KiB/s (232kB/s), 56.1KiB/s-58.7KiB/s (57.4kB/s-60.1kB/s), io=24.6MiB (25.7MB), run=107188-111195msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154718: Tue Aug 11 12:40:51 2026 read: IOPS=6, BW=26.5KiB/s (27.1kB/s)(5992KiB/226423msec) clat (msec): min=5, max=746, avg=31.44, stdev=34.59 lat (msec): min=5, max=746, avg=31.44, stdev=34.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 66], 95.00th=[ 91], | 99.00th=[ 142], 99.50th=[ 178], 99.90th=[ 300], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 103, per=27.01%, avg=28.36, stdev=19.30, samples=411 iops : min= 1, max= 25, avg= 6.51, stdev= 4.88, samples=411 write: IOPS=6, BW=27.8KiB/s (28.5kB/s)(6296KiB/226423msec); 0 zone resets clat (msec): min=29, max=561, avg=113.71, stdev=57.39 lat (msec): min=29, max=561, avg=113.71, stdev=57.39 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 70], | 30.00th=[ 79], 40.00th=[ 88], 50.00th=[ 97], 60.00th=[ 111], | 70.00th=[ 128], 80.00th=[ 150], 90.00th=[ 192], 95.00th=[ 228], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 477], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 64, per=24.99%, avg=27.49, stdev=12.58, samples=444 iops : min= 1, max= 16, avg= 6.29, stdev= 3.18, samples=444 lat (msec) : 10=4.23%, 20=18.49%, 50=20.83%, 100=30.08%, 250=24.54% lat (msec) : 500=1.76%, 750=0.07% cpu : usr=0.05%, sys=1.68%, ctx=5592, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154721: Tue Aug 11 12:40:51 2026 read: IOPS=6, BW=26.2KiB/s (26.9kB/s)(5940KiB/226498msec) clat (msec): min=5, max=740, avg=32.06, stdev=33.50 lat (msec): min=5, max=740, avg=32.06, stdev=33.50 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 65], 95.00th=[ 86], | 99.00th=[ 150], 99.50th=[ 178], 99.90th=[ 338], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 103, per=27.26%, avg=28.63, stdev=18.47, samples=403 iops : min= 1, max= 25, avg= 6.58, stdev= 4.64, samples=403 write: IOPS=7, BW=28.0KiB/s (28.7kB/s)(6348KiB/226498msec); 0 zone resets clat (msec): min=30, max=561, avg=112.49, stdev=56.23 lat (msec): min=30, max=561, avg=112.50, stdev=56.23 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 68], | 30.00th=[ 78], 40.00th=[ 86], 50.00th=[ 96], 60.00th=[ 109], | 70.00th=[ 128], 80.00th=[ 155], 90.00th=[ 194], 95.00th=[ 226], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 485], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 71, per=25.02%, avg=27.52, stdev=12.92, samples=447 iops : min= 1, max= 17, avg= 6.30, stdev= 3.29, samples=447 lat (msec) : 10=4.00%, 20=17.22%, 50=21.35%, 100=31.64%, 250=24.51% lat (msec) : 500=1.20%, 750=0.07% cpu : usr=0.06%, sys=1.76%, ctx=5670, 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=154722: Tue Aug 11 12:40:51 2026 read: IOPS=6, BW=26.5KiB/s (27.1kB/s)(6028KiB/227351msec) clat (msec): min=5, max=334, avg=33.68, stdev=31.65 lat (msec): min=5, max=334, avg=33.68, stdev=31.65 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 72], 95.00th=[ 94], | 99.00th=[ 150], 99.50th=[ 186], 99.90th=[ 309], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 119, per=26.61%, avg=27.94, stdev=18.82, samples=419 iops : min= 1, max= 29, avg= 6.40, stdev= 4.73, samples=419 write: IOPS=6, BW=27.5KiB/s (28.2kB/s)(6260KiB/227351msec); 0 zone resets clat (msec): min=33, max=839, avg=112.61, stdev=58.81 lat (msec): min=33, max=839, avg=112.61, stdev=58.81 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 78], 40.00th=[ 85], 50.00th=[ 95], 60.00th=[ 109], | 70.00th=[ 127], 80.00th=[ 155], 90.00th=[ 194], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 317], 99.90th=[ 447], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 63, per=24.81%, avg=27.29, stdev=13.14, samples=445 iops : min= 1, max= 15, avg= 6.24, stdev= 3.34, samples=445 lat (msec) : 10=3.52%, 20=17.09%, 50=21.35%, 100=32.52%, 250=23.93% lat (msec) : 500=1.56%, 1000=0.03% cpu : usr=0.05%, sys=1.66%, ctx=5574, 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=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=154724: Tue Aug 11 12:40:51 2026 read: IOPS=6, BW=26.9KiB/s (27.5kB/s)(6052KiB/225281msec) clat (msec): min=4, max=300, avg=32.50, stdev=32.42 lat (msec): min=4, max=300, avg=32.50, stdev=32.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 71], 95.00th=[ 94], | 99.00th=[ 163], 99.50th=[ 218], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 117, per=27.97%, avg=29.37, stdev=19.17, samples=401 iops : min= 1, max= 29, avg= 6.76, stdev= 4.83, samples=401 write: IOPS=6, BW=27.7KiB/s (28.3kB/s)(6236KiB/225281msec); 0 zone resets clat (msec): min=34, max=866, avg=112.73, stdev=58.00 lat (msec): min=34, max=866, avg=112.74, stdev=57.99 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 78], 40.00th=[ 86], 50.00th=[ 96], 60.00th=[ 108], | 70.00th=[ 128], 80.00th=[ 157], 90.00th=[ 194], 95.00th=[ 220], | 99.00th=[ 279], 99.50th=[ 313], 99.90th=[ 422], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 64, per=25.13%, avg=27.64, stdev=12.80, samples=438 iops : min= 1, max= 16, avg= 6.32, stdev= 3.25, samples=438 lat (msec) : 10=4.65%, 20=18.68%, 50=19.53%, 100=31.74%, 250=24.02% lat (msec) : 500=1.33%, 1000=0.03% cpu : usr=0.05%, sys=1.70%, ctx=5575, 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=106KiB/s (108kB/s), 26.2KiB/s-26.9KiB/s (26.9kB/s-27.5kB/s), io=23.4MiB (24.6MB), run=225281-227351msec WRITE: bw=111KiB/s (113kB/s), 27.5KiB/s-28.0KiB/s (28.2kB/s-28.7kB/s), io=24.6MiB (25.7MB), run=225281-227351msec 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=154768: Tue Aug 11 12:41:25 2026 read: IOPS=14, BW=226KiB/s (231kB/s)(5920KiB/26248msec) clat (usec): min=29, max=366887, avg=38802.94, stdev=37330.71 lat (usec): min=29, max=366888, avg=38804.97, stdev=37331.81 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 11600], | 30.00th=[ 23462], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 47449], 80.00th=[ 57934], 90.00th=[ 71828], 95.00th=[ 90702], | 99.00th=[143655], 99.50th=[362808], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 63, max= 477, per=24.55%, avg=222.71, stdev=77.24, samples=51 iops : min= 3, max= 29, avg=13.16, stdev= 4.82, samples=51 write: IOPS=15, BW=243KiB/s (248kB/s)(6368KiB/26248msec); 0 zone resets clat (usec): min=1585, max=233016, avg=29304.68, stdev=30963.45 lat (usec): min=1587, max=233019, avg=29341.72, stdev=31009.62 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2311], 10.00th=[ 3228], 20.00th=[ 5080], | 30.00th=[ 8160], 40.00th=[ 12387], 50.00th=[ 19530], 60.00th=[ 27132], | 70.00th=[ 38536], 80.00th=[ 50070], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[164627], 99.50th=[214959], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 473, per=25.36%, avg=241.96, stdev=105.14, samples=51 iops : min= 1, max= 29, avg=14.37, stdev= 6.67, samples=51 lat (usec) : 50=0.78%, 100=7.03%, 250=0.78%, 500=0.13%, 1000=0.65% lat (msec) : 2=1.04%, 4=6.64%, 10=9.90%, 20=11.46%, 50=38.80% lat (msec) : 100=19.66%, 250=2.86%, 500=0.26% cpu : usr=0.10%, sys=7.35%, ctx=1597, 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=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=154769: Tue Aug 11 12:41:25 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(5744KiB/25904msec) clat (usec): min=41, max=281819, avg=38541.83, stdev=32331.04 lat (usec): min=42, max=281821, avg=38543.29, stdev=32330.96 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 76], 20.00th=[ 13960], | 30.00th=[ 24249], 40.00th=[ 29754], 50.00th=[ 36963], 60.00th=[ 42206], | 70.00th=[ 46924], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 83362], | 99.00th=[164627], 99.50th=[240124], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 60, max= 407, per=24.49%, avg=222.14, stdev=77.36, samples=51 iops : min= 3, max= 25, avg=13.12, stdev= 4.91, samples=51 write: IOPS=15, BW=253KiB/s (259kB/s)(6544KiB/25904msec); 0 zone resets clat (usec): min=1622, max=314517, avg=28996.99, stdev=31342.23 lat (usec): min=1626, max=314517, avg=29003.43, stdev=31349.96 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2278], 10.00th=[ 3032], 20.00th=[ 5145], | 30.00th=[ 8356], 40.00th=[ 11994], 50.00th=[ 19530], 60.00th=[ 27132], | 70.00th=[ 36439], 80.00th=[ 48497], 90.00th=[ 65799], 95.00th=[ 84411], | 99.00th=[129500], 99.50th=[145753], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 477, per=26.49%, avg=252.75, stdev=109.61, samples=51 iops : min= 1, max= 29, avg=15.04, stdev= 6.89, samples=51 lat (usec) : 50=0.65%, 100=5.99%, 250=1.30%, 500=0.39% lat (msec) : 2=2.08%, 4=6.25%, 10=11.07%, 20=10.42%, 50=39.19% lat (msec) : 100=19.92%, 250=2.47%, 500=0.26% cpu : usr=0.08%, sys=7.57%, ctx=1647, 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=154770: Tue Aug 11 12:41:25 2026 read: IOPS=14, BW=237KiB/s (243kB/s)(6256KiB/26407msec) clat (usec): min=35, max=161328, avg=35604.02, stdev=28117.15 lat (usec): min=35, max=161329, avg=35605.43, stdev=28117.17 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 182], | 30.00th=[ 22938], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 66847], 95.00th=[ 85459], | 99.00th=[137364], 99.50th=[156238], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 63, max= 446, per=26.19%, avg=237.52, stdev=86.74, samples=52 iops : min= 3, max= 27, avg=14.08, stdev= 5.48, samples=52 write: IOPS=14, BW=228KiB/s (234kB/s)(6032KiB/26407msec); 0 zone resets clat (usec): min=1668, max=200939, avg=32882.62, stdev=34141.29 lat (usec): min=1670, max=200941, avg=32888.82, stdev=34138.49 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2311], 10.00th=[ 3982], 20.00th=[ 6194], | 30.00th=[ 8586], 40.00th=[ 12780], 50.00th=[ 19006], 60.00th=[ 31065], | 70.00th=[ 41157], 80.00th=[ 55313], 90.00th=[ 80217], 95.00th=[106431], | 99.00th=[145753], 99.50th=[196084], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 412, per=23.60%, avg=225.13, stdev=82.39, samples=52 iops : min= 3, max= 25, avg=13.31, stdev= 5.23, samples=52 lat (usec) : 50=1.69%, 100=7.94%, 250=0.65%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.30%, 4=3.65%, 10=11.72%, 20=10.55%, 50=37.11% lat (msec) : 100=21.22%, 250=3.52% cpu : usr=0.09%, sys=7.40%, ctx=1555, 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=154771: Tue Aug 11 12:41:25 2026 read: IOPS=14, BW=238KiB/s (243kB/s)(6032KiB/25387msec) clat (usec): min=33, max=416619, avg=38434.15, stdev=36930.32 lat (usec): min=33, max=416620, avg=38440.65, stdev=36925.15 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 72], 20.00th=[ 635], | 30.00th=[ 20841], 40.00th=[ 28705], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 47973], 80.00th=[ 58459], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[147850], 99.50th=[248513], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 63, max= 476, per=26.06%, avg=236.38, stdev=84.12, samples=50 iops : min= 3, max= 29, avg=14.00, stdev= 5.30, samples=50 write: IOPS=15, BW=246KiB/s (252kB/s)(6256KiB/25387msec); 0 zone resets clat (usec): min=1655, max=267378, avg=27479.17, stdev=30115.96 lat (usec): min=1655, max=267380, avg=27484.83, stdev=30116.41 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2040], 10.00th=[ 3032], 20.00th=[ 4948], | 30.00th=[ 7439], 40.00th=[ 10290], 50.00th=[ 14877], 60.00th=[ 23725], | 70.00th=[ 34341], 80.00th=[ 45351], 90.00th=[ 68682], 95.00th=[ 87557], | 99.00th=[125305], 99.50th=[143655], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 31, max= 476, per=25.89%, avg=246.96, stdev=88.81, samples=50 iops : min= 1, max= 29, avg=14.68, stdev= 5.59, samples=50 lat (usec) : 50=1.43%, 100=6.77%, 250=0.91%, 500=0.65%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.47%, 4=5.47%, 10=12.24%, 20=11.59%, 50=35.55% lat (msec) : 100=19.53%, 250=2.86%, 500=0.26% cpu : usr=0.09%, sys=7.45%, ctx=1524, 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=907KiB/s (929kB/s), 222KiB/s-238KiB/s (227kB/s-243kB/s), io=23.4MiB (24.5MB), run=25387-26407msec WRITE: bw=954KiB/s (977kB/s), 228KiB/s-253KiB/s (234kB/s-259kB/s), io=24.6MiB (25.8MB), run=25387-26407msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154773: Tue Aug 11 12:41:55 2026 read: IOPS=6, BW=106KiB/s (108kB/s)(5920KiB/55893msec) clat (msec): min=6, max=222, avg=32.68, stdev=32.58 lat (msec): min=6, max=222, avg=32.68, stdev=32.58 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 45], 90.00th=[ 75], 95.00th=[ 99], | 99.00th=[ 167], 99.50th=[ 209], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 30, max= 348, per=27.40%, avg=115.61, stdev=69.93, samples=100 iops : min= 1, max= 21, avg= 6.50, stdev= 4.44, samples=100 write: IOPS=7, BW=114KiB/s (117kB/s)(6368KiB/55893msec); 0 zone resets clat (msec): min=32, max=344, avg=109.23, stdev=55.23 lat (msec): min=32, max=344, avg=109.24, stdev=55.23 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 50], 10.00th=[ 57], 20.00th=[ 64], | 30.00th=[ 73], 40.00th=[ 84], 50.00th=[ 94], 60.00th=[ 105], | 70.00th=[ 123], 80.00th=[ 153], 90.00th=[ 190], 95.00th=[ 230], | 99.00th=[ 288], 99.50th=[ 321], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 223, per=25.79%, avg=114.50, stdev=54.97, samples=109 iops : min= 1, max= 13, avg= 6.41, stdev= 3.57, samples=109 lat (msec) : 10=2.86%, 20=20.18%, 50=19.14%, 100=32.42%, 250=23.70% lat (msec) : 500=1.69% cpu : usr=0.06%, sys=2.02%, ctx=1364, 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=154774: Tue Aug 11 12:41:55 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(5744KiB/56660msec) clat (msec): min=7, max=272, avg=30.85, stdev=29.89 lat (msec): min=7, max=272, avg=30.85, stdev=29.89 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 70], 95.00th=[ 108], | 99.00th=[ 133], 99.50th=[ 150], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 351, per=26.62%, avg=112.35, stdev=74.31, samples=100 iops : min= 1, max= 21, avg= 6.32, stdev= 4.71, samples=100 write: IOPS=7, BW=115KiB/s (118kB/s)(6544KiB/56660msec); 0 zone resets clat (msec): min=32, max=411, avg=111.19, stdev=60.71 lat (msec): min=32, max=411, avg=111.20, stdev=60.71 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 52], 10.00th=[ 57], 20.00th=[ 67], | 30.00th=[ 73], 40.00th=[ 81], 50.00th=[ 91], 60.00th=[ 105], | 70.00th=[ 123], 80.00th=[ 153], 90.00th=[ 199], 95.00th=[ 234], | 99.00th=[ 305], 99.50th=[ 338], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 30, max= 224, per=25.86%, avg=114.82, stdev=54.78, samples=112 iops : min= 1, max= 14, avg= 6.45, stdev= 3.58, samples=112 lat (msec) : 10=3.12%, 20=20.96%, 50=18.36%, 100=32.16%, 250=22.79% lat (msec) : 500=2.60% cpu : usr=0.05%, sys=1.84%, ctx=1402, 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=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=154775: Tue Aug 11 12:41:55 2026 read: IOPS=7, BW=113KiB/s (115kB/s)(6256KiB/55481msec) clat (msec): min=6, max=208, avg=31.04, stdev=31.99 lat (msec): min=6, max=208, avg=31.04, stdev=31.99 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 62], 95.00th=[ 106], | 99.00th=[ 174], 99.50th=[ 182], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 30, max= 412, per=28.72%, avg=121.19, stdev=86.99, samples=102 iops : min= 1, max= 25, avg= 6.83, stdev= 5.58, samples=102 write: IOPS=6, BW=109KiB/s (111kB/s)(6032KiB/55481msec); 0 zone resets clat (msec): min=39, max=348, avg=114.25, stdev=56.71 lat (msec): min=39, max=348, avg=114.26, stdev=56.71 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 80], 40.00th=[ 87], 50.00th=[ 95], 60.00th=[ 105], | 70.00th=[ 126], 80.00th=[ 159], 90.00th=[ 201], 95.00th=[ 236], | 99.00th=[ 305], 99.50th=[ 342], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 29, max= 223, per=24.87%, avg=110.41, stdev=50.58, samples=107 iops : min= 1, max= 13, avg= 6.16, stdev= 3.26, samples=107 lat (msec) : 10=3.39%, 20=22.92%, 50=19.14%, 100=30.47%, 250=22.92% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.94%, ctx=1375, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154776: Tue Aug 11 12:41:55 2026 read: IOPS=6, BW=108KiB/s (110kB/s)(6032KiB/55932msec) clat (msec): min=6, max=238, avg=31.98, stdev=34.31 lat (msec): min=6, max=238, avg=31.98, stdev=34.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 75], 95.00th=[ 102], | 99.00th=[ 182], 99.50th=[ 190], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 30, max= 414, per=28.14%, avg=118.74, stdev=82.24, samples=99 iops : min= 1, max= 25, avg= 6.69, stdev= 5.27, samples=99 write: IOPS=6, BW=112KiB/s (115kB/s)(6256KiB/55932msec); 0 zone resets clat (msec): min=35, max=438, avg=111.52, stdev=57.99 lat (msec): min=35, max=438, avg=111.52, stdev=57.99 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 78], 40.00th=[ 86], 50.00th=[ 95], 60.00th=[ 109], | 70.00th=[ 123], 80.00th=[ 146], 90.00th=[ 180], 95.00th=[ 222], | 99.00th=[ 321], 99.50th=[ 414], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 31, max= 255, per=25.32%, avg=112.41, stdev=53.10, samples=109 iops : min= 1, max= 15, avg= 6.28, stdev= 3.44, samples=109 lat (msec) : 10=3.78%, 20=22.79%, 50=16.41%, 100=31.12%, 250=24.22% lat (msec) : 500=1.69% cpu : usr=0.07%, sys=1.95%, ctx=1405, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=423KiB/s (433kB/s), 101KiB/s-113KiB/s (104kB/s-115kB/s), io=23.4MiB (24.5MB), run=55481-56660msec WRITE: bw=445KiB/s (455kB/s), 109KiB/s-115KiB/s (111kB/s-118kB/s), io=24.6MiB (25.8MB), run=55481-56660msec 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=154794: Tue Aug 11 12:42:08 2026 read: IOPS=2, BW=2377KiB/s (2435kB/s)(7168KiB/3015msec) clat (usec): min=481, max=387792, avg=128746.13, stdev=145652.43 lat (usec): min=482, max=387793, avg=128747.71, stdev=145652.60 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], 20.00th=[ 490], | 30.00th=[ 734], 40.00th=[ 734], 50.00th=[111674], 60.00th=[185598], | 70.00th=[185598], 80.00th=[214959], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 2035, max= 4213, per=59.10%, avg=3434.33, stdev=1214.43, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1698KiB/s (1739kB/s)(5120KiB/3015msec); 0 zone resets clat (msec): min=229, max=596, avg=390.31, stdev=141.37 lat (msec): min=229, max=598, avg=390.83, stdev=142.18 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 443], 80.00th=[ 443], 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= 2035, max= 4071, per=33.37%, avg=2715.00, stdev=1174.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=10.42%, ctx=121, 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=154795: Tue Aug 11 12:42:08 2026 read: IOPS=0, BW=581KiB/s (595kB/s)(2048KiB/3524msec) clat (msec): min=8, max=183, avg=95.62, stdev=123.83 lat (msec): min=8, max=183, avg=95.62, stdev=123.83 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 9], 10.00th=[ 9], 20.00th=[ 9], | 30.00th=[ 9], 40.00th=[ 9], 50.00th=[ 9], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 1469, max= 2035, per=30.15%, avg=1752.00, stdev=400.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2906KiB/s (2976kB/s)(10.0MiB/3524msec); 0 zone resets clat (msec): min=97, max=537, avg=297.61, stdev=153.56 lat (msec): min=97, max=537, avg=299.37, stdev=152.05 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 133], | 30.00th=[ 167], 40.00th=[ 190], 50.00th=[ 247], 60.00th=[ 321], | 70.00th=[ 397], 80.00th=[ 405], 90.00th=[ 481], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2035, max= 6083, per=49.84%, avg=4055.00, stdev=1652.68, samples=4 iops : min= 1, max= 5, avg= 3.00, stdev= 1.63, samples=4 lat (msec) : 10=8.33%, 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=13.06%, ctx=137, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154796: Tue Aug 11 12:42:08 2026 read: IOPS=1, BW=1924KiB/s (1970kB/s)(6144KiB/3193msec) clat (msec): min=89, max=525, avg=242.49, stdev=163.09 lat (msec): min=89, max=525, avg=242.49, stdev=163.09 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 90], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 255], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2027, max= 4079, per=58.38%, avg=3392.33, stdev=1182.42, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1924KiB/s (1970kB/s)(6144KiB/3193msec); 0 zone resets clat (msec): min=141, max=563, avg=285.02, stdev=156.06 lat (msec): min=141, max=563, avg=285.21, stdev=156.02 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2035, max= 2896, per=27.67%, avg=2251.25, stdev=429.84, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=13.25%, ctx=157, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154798: Tue Aug 11 12:42:08 2026 read: IOPS=1, BW=1625KiB/s (1664kB/s)(5120KiB/3150msec) clat (usec): min=383, max=229565, avg=82934.41, stdev=112922.48 lat (usec): min=383, max=229566, avg=82935.48, stdev=112922.61 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], 20.00th=[ 383], | 30.00th=[ 1631], 40.00th=[ 1631], 50.00th=[ 2311], 60.00th=[ 2311], | 70.00th=[181404], 80.00th=[181404], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 2039, max= 6107, per=70.09%, avg=4073.00, stdev=2876.51, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2276KiB/s (2330kB/s)(7168KiB/3150msec); 0 zone resets clat (msec): min=243, max=610, avg=381.65, stdev=133.84 lat (msec): min=243, max=610, avg=381.91, stdev=133.65 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 268], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 376], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 477], 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= 1521, max= 2039, per=23.74%, avg=1931.40, stdev=229.46, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=11.18%, ctx=104, 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=5812KiB/s (5951kB/s), 581KiB/s-2377KiB/s (595kB/s-2435kB/s), io=20.0MiB (20.0MB), run=3015-3524msec WRITE: bw=8136KiB/s (8331kB/s), 1698KiB/s-2906KiB/s (1739kB/s-2976kB/s), io=28.0MiB (29.4MB), run=3015-3524msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154799: Tue Aug 11 12:42:09 2026 read: IOPS=1, BW=1908KiB/s (1954kB/s)(7168KiB/3756msec) clat (msec): min=92, max=480, avg=200.99, stdev=134.40 lat (msec): min=92, max=480, avg=200.99, stdev=134.40 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 103], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 234], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 2023, max= 4055, per=61.29%, avg=2956.25, stdev=1081.90, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1363KiB/s (1396kB/s)(5120KiB/3756msec); 0 zone resets clat (msec): min=147, max=876, avg=460.30, stdev=282.22 lat (msec): min=147, max=884, avg=462.06, stdev=285.32 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1980, max= 2039, per=29.89%, avg=2018.25, stdev=26.32, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.75%, ctx=87, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154800: Tue Aug 11 12:42:09 2026 read: IOPS=0, BW=493KiB/s (505kB/s)(2048KiB/4152msec) clat (msec): min=149, max=486, avg=318.14, stdev=238.29 lat (msec): min=149, max=486, avg=318.14, stdev=238.29 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 2023, max= 2031, per=42.03%, avg=2027.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2466KiB/s (2525kB/s)(10.0MiB/4152msec); 0 zone resets clat (msec): min=98, max=663, avg=322.13, stdev=187.03 lat (msec): min=98, max=664, avg=322.23, stdev=187.02 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 186], | 30.00th=[ 205], 40.00th=[ 211], 50.00th=[ 220], 60.00th=[ 236], | 70.00th=[ 359], 80.00th=[ 481], 90.00th=[ 567], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1961, max= 6119, per=53.66%, avg=3623.00, stdev=1719.99, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=4.43%, ctx=106, 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=154801: Tue Aug 11 12:42:09 2026 read: IOPS=1, BW=1511KiB/s (1547kB/s)(6144KiB/4066msec) clat (msec): min=84, max=389, avg=155.20, stdev=116.05 lat (msec): min=84, max=389, avg=155.20, stdev=116.05 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 116], | 70.00th=[ 132], 80.00th=[ 132], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 3961, max= 4047, per=83.02%, avg=4004.00, stdev=60.81, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1511KiB/s (1547kB/s)(6144KiB/4066msec); 0 zone resets clat (msec): min=188, max=682, avg=486.65, stdev=210.80 lat (msec): min=188, max=683, avg=486.75, stdev=210.78 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 617], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1961, max= 2039, per=29.84%, avg=2014.50, stdev=36.01, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=3.47%, ctx=71, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154802: Tue Aug 11 12:42:09 2026 read: IOPS=1, BW=1206KiB/s (1235kB/s)(5120KiB/4246msec) clat (msec): min=63, max=542, avg=228.80, stdev=184.72 lat (msec): min=63, max=542, avg=228.81, stdev=184.72 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 64], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 197], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 207], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1973, max= 4079, per=55.81%, avg=2691.67, stdev=1201.73, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1688KiB/s (1729kB/s)(7168KiB/4246msec); 0 zone resets clat (msec): min=139, max=923, avg=432.93, stdev=296.50 lat (msec): min=139, max=923, avg=433.30, stdev=296.82 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 192], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 334], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 726], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1961, max= 2027, per=29.58%, avg=1997.00, stdev=34.99, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=2.85%, ctx=65, 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=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=4823KiB/s (4939kB/s), 493KiB/s-1908KiB/s (505kB/s-1954kB/s), io=20.0MiB (20.0MB), run=3756-4246msec WRITE: bw=6753KiB/s (6915kB/s), 1363KiB/s-2466KiB/s (1396kB/s-2525kB/s), io=28.0MiB (29.4MB), run=3756-4246msec 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=154810: Tue Aug 11 12:42:21 2026 read: IOPS=0, BW=3436KiB/s (3519kB/s)(12.0MiB/3576msec) clat (msec): min=901, max=1627, avg=1190.81, stdev=384.93 lat (msec): min=901, max=1627, avg=1190.81, stdev=384.93 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7585, max= 8094, per=100.00%, avg=7839.50, stdev=359.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.80%, ctx=52, 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=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=154811: Tue Aug 11 12:42:21 2026 read: IOPS=0, BW=2723KiB/s (2789kB/s)(4096KiB/1504msec) clat (nsec): min=243900k, max=243900k, avg=243900277.00, stdev= 0.00 lat (nsec): min=243904k, max=243904k, avg=243903932.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 5910, max= 5910, per=100.00%, avg=5910.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5447KiB/s (5578kB/s)(8192KiB/1504msec); 0 zone resets clat (msec): min=551, max=655, avg=603.43, stdev=73.84 lat (msec): min=551, max=656, avg=603.97, stdev=73.96 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 8143, max= 8143, per=65.36%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=10.98%, 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=154812: Tue Aug 11 12:42:21 2026 write: IOPS=1, BW=5141KiB/s (5265kB/s)(12.0MiB/2390msec); 0 zone resets clat (msec): min=504, max=1244, avg=791.44, stdev=396.79 lat (msec): min=506, max=1244, avg=792.60, stdev=396.13 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 6400, max= 8143, per=58.36%, avg=7271.50, stdev=1232.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.14%, ctx=37, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154813: Tue Aug 11 12:42:21 2026 write: IOPS=1, BW=4672KiB/s (4784kB/s)(12.0MiB/2630msec); 0 zone resets clat (msec): min=396, max=1823, avg=874.27, stdev=821.91 lat (msec): min=396, max=1823, avg=876.27, stdev=820.69 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 6849, max= 8143, per=60.17%, avg=7496.00, stdev=915.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.23%, sys=5.36%, ctx=41, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4582KiB/s (4692kB/s), 2723KiB/s-3436KiB/s (2789kB/s-3519kB/s), io=16.0MiB (16.8MB), run=1504-3576msec WRITE: bw=12.2MiB/s (12.8MB/s), 4672KiB/s-5447KiB/s (4784kB/s-5578kB/s), io=32.0MiB (33.6MB), run=1504-2630msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154815: Tue Aug 11 12:42:21 2026 read: IOPS=1, BW=4264KiB/s (4366kB/s)(12.0MiB/2882msec) clat (msec): min=858, max=1075, avg=960.22, stdev=109.11 lat (msec): min=858, max=1075, avg=960.22, stdev=109.11 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.03%, sys=13.78%, ctx=304, 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=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=154816: Tue Aug 11 12:42:21 2026 read: IOPS=0, BW=1211KiB/s (1240kB/s)(4096KiB/3382msec) clat (nsec): min=1017.3M, max=1017.3M, avg=1017286748.00, stdev= 0.00 lat (nsec): min=1017.3M, max=1017.3M, avg=1017288443.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 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=2422KiB/s (2480kB/s)(8192KiB/3382msec); 0 zone resets clat (msec): min=1065, max=1294, avg=1179.90, stdev=161.65 lat (msec): min=1067, max=1294, avg=1181.18, stdev=160.70 clat percentiles (msec): | 1.00th=[ 1070], 5.00th=[ 1070], 10.00th=[ 1070], 20.00th=[ 1070], | 30.00th=[ 1070], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8143, max= 8143, per=84.47%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=8.07%, ctx=301, 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=154817: Tue Aug 11 12:42:21 2026 write: IOPS=0, BW=3615KiB/s (3702kB/s)(12.0MiB/3399msec); 0 zone resets clat (msec): min=680, max=1853, avg=1122.16, stdev=637.59 lat (msec): min=681, max=1883, avg=1132.53, stdev=654.79 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8143, max= 8175, per=84.64%, avg=8159.00, stdev=22.63, 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=0.03%, sys=7.18%, ctx=51, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154818: Tue Aug 11 12:42:21 2026 write: IOPS=1, BW=4987KiB/s (5107kB/s)(12.0MiB/2464msec); 0 zone resets clat (msec): min=576, max=990, avg=818.13, stdev=215.60 lat (msec): min=576, max=997, avg=820.83, stdev=218.42 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8143, max= 8143, per=84.47%, avg=8143.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.28%, ctx=48, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4844KiB/s (4961kB/s), 1211KiB/s-4264KiB/s (1240kB/s-4366kB/s), io=16.0MiB (16.8MB), run=2882-3382msec WRITE: bw=9640KiB/s (9872kB/s), 2422KiB/s-4987KiB/s (2480kB/s-5107kB/s), io=32.0MiB (33.6MB), run=2464-3399msec