== sanity test 398b: DIO and buffer IO race ============== 10:17:26 (1784125046) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.43318 s, 9.3 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 fio: pid=188933, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=188938: Wed Jul 15 10:18:53 2026 read: IOPS=21, BW=85.1KiB/s (87.2kB/s)(5992KiB/70392msec) clat (usec): min=34, max=528589, avg=26487.59, stdev=20214.42 lat (usec): min=35, max=528590, avg=26488.90, stdev=20214.52 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 8094], 10.00th=[ 11207], 20.00th=[ 14353], | 30.00th=[ 17171], 40.00th=[ 20317], 50.00th=[ 23462], 60.00th=[ 26608], | 70.00th=[ 30802], 80.00th=[ 36439], 90.00th=[ 45351], 95.00th=[ 53216], | 99.00th=[ 81265], 99.50th=[ 89654], 99.90th=[130548], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 18, max= 183, per=25.27%, avg=84.67, stdev=23.95, samples=139 iops : min= 4, max= 45, avg=20.58, stdev= 5.99, samples=139 write: IOPS=22, BW=89.4KiB/s (91.6kB/s)(6296KiB/70392msec); 0 zone resets clat (usec): min=828, max=135588, avg=19454.60, stdev=18873.74 lat (usec): min=829, max=135590, avg=19459.49, stdev=18871.43 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1418], 10.00th=[ 1893], 20.00th=[ 3228], | 30.00th=[ 5014], 40.00th=[ 10159], 50.00th=[ 14615], 60.00th=[ 19268], | 70.00th=[ 24511], 80.00th=[ 32375], 90.00th=[ 45351], 95.00th=[ 57934], | 99.00th=[ 81265], 99.50th=[ 94897], 99.90th=[131597], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 6, max= 175, per=25.37%, avg=89.04, stdev=31.38, samples=139 iops : min= 1, max= 43, avg=21.68, stdev= 7.92, samples=139 lat (usec) : 50=0.33%, 100=1.20%, 250=0.20%, 500=0.03%, 1000=0.33% lat (msec) : 2=5.31%, 4=7.26%, 10=9.67%, 20=25.75%, 50=42.87% lat (msec) : 100=6.64%, 250=0.39%, 750=0.03% cpu : usr=0.11%, sys=11.28%, ctx=7279, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188939: Wed Jul 15 10:18:53 2026 read: IOPS=21, BW=84.4KiB/s (86.4kB/s)(5940KiB/70374msec) clat (usec): min=36, max=442663, avg=26410.52, stdev=20415.28 lat (usec): min=40, max=442663, avg=26413.32, stdev=20414.18 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 7439], 10.00th=[ 10290], 20.00th=[ 13435], | 30.00th=[ 16319], 40.00th=[ 19006], 50.00th=[ 22414], 60.00th=[ 26346], | 70.00th=[ 30540], 80.00th=[ 36439], 90.00th=[ 46924], 95.00th=[ 55837], | 99.00th=[ 90702], 99.50th=[112722], 99.90th=[173016], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 6, max= 142, per=25.08%, avg=84.01, stdev=26.56, samples=139 iops : min= 1, max= 35, avg=20.42, stdev= 6.69, samples=139 write: IOPS=22, BW=90.2KiB/s (92.4kB/s)(6348KiB/70374msec); 0 zone resets clat (usec): min=736, max=170595, avg=19572.57, stdev=19691.72 lat (usec): min=737, max=170597, avg=19575.81, stdev=19691.00 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1352], 10.00th=[ 1795], 20.00th=[ 2868], | 30.00th=[ 4686], 40.00th=[ 9241], 50.00th=[ 14484], 60.00th=[ 19268], | 70.00th=[ 25035], 80.00th=[ 32637], 90.00th=[ 45876], 95.00th=[ 58459], | 99.00th=[ 82314], 99.50th=[104334], 99.90th=[168821], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 12, max= 192, per=25.50%, avg=89.50, stdev=31.47, samples=139 iops : min= 3, max= 48, avg=21.81, stdev= 7.94, samples=139 lat (usec) : 50=0.16%, 100=0.94%, 250=0.49%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.36% lat (msec) : 2=5.92%, 4=7.68%, 10=10.12%, 20=26.46%, 50=39.91% lat (msec) : 100=7.29%, 250=0.55%, 500=0.03% cpu : usr=0.09%, sys=11.39%, ctx=7377, 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=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=188940: Wed Jul 15 10:18:53 2026 read: IOPS=21, BW=84.2KiB/s (86.2kB/s)(6028KiB/71592msec) clat (usec): min=36, max=140536, avg=25538.89, stdev=16127.12 lat (usec): min=36, max=140538, avg=25540.53, stdev=16127.31 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 7504], 10.00th=[ 10159], 20.00th=[ 13304], | 30.00th=[ 16319], 40.00th=[ 19268], 50.00th=[ 22414], 60.00th=[ 25297], | 70.00th=[ 30540], 80.00th=[ 36439], 90.00th=[ 44827], 95.00th=[ 56361], | 99.00th=[ 83362], 99.50th=[ 96994], 99.90th=[121111], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 31, max= 183, per=25.22%, avg=84.50, stdev=29.22, samples=141 iops : min= 7, max= 45, avg=20.55, stdev= 7.39, samples=141 write: IOPS=21, BW=87.4KiB/s (89.5kB/s)(6260KiB/71592msec); 0 zone resets clat (usec): min=839, max=500444, avg=21103.42, stdev=24133.81 lat (usec): min=840, max=500446, avg=21107.51, stdev=24132.61 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1418], 10.00th=[ 1942], 20.00th=[ 3228], | 30.00th=[ 5407], 40.00th=[ 10290], 50.00th=[ 15664], 60.00th=[ 20055], | 70.00th=[ 26084], 80.00th=[ 34866], 90.00th=[ 47449], 95.00th=[ 60556], | 99.00th=[ 99091], 99.50th=[116917], 99.90th=[139461], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 18, max= 199, per=24.78%, avg=86.97, stdev=30.93, samples=142 iops : min= 4, max= 49, avg=21.17, stdev= 7.79, samples=142 lat (usec) : 50=0.39%, 100=1.20%, 250=0.46%, 500=0.03%, 1000=0.33% lat (msec) : 2=5.18%, 4=6.84%, 10=10.58%, 20=26.50%, 50=40.79% lat (msec) : 100=7.03%, 250=0.65%, 750=0.03% cpu : usr=0.10%, sys=11.05%, ctx=7390, 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=188941: Wed Jul 15 10:18:53 2026 read: IOPS=21, BW=84.7KiB/s (86.7kB/s)(6052KiB/71487msec) clat (usec): min=35, max=131702, avg=25470.51, stdev=16281.84 lat (usec): min=35, max=131703, avg=25472.29, stdev=16281.26 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 6718], 10.00th=[ 10421], 20.00th=[ 13698], | 30.00th=[ 16319], 40.00th=[ 19268], 50.00th=[ 21890], 60.00th=[ 25822], | 70.00th=[ 30016], 80.00th=[ 35914], 90.00th=[ 44827], 95.00th=[ 53216], | 99.00th=[ 83362], 99.50th=[ 94897], 99.90th=[117965], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 31, max= 160, per=25.19%, avg=84.37, stdev=26.25, samples=140 iops : min= 7, max= 40, avg=20.52, stdev= 6.64, samples=140 write: IOPS=21, BW=87.2KiB/s (89.3kB/s)(6236KiB/71487msec); 0 zone resets clat (usec): min=838, max=497670, avg=21064.93, stdev=23806.62 lat (usec): min=839, max=497672, avg=21066.31, stdev=23806.62 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1450], 10.00th=[ 1991], 20.00th=[ 3294], | 30.00th=[ 5538], 40.00th=[ 10290], 50.00th=[ 15664], 60.00th=[ 20841], | 70.00th=[ 26346], 80.00th=[ 34866], 90.00th=[ 47973], 95.00th=[ 60556], | 99.00th=[ 94897], 99.50th=[107480], 99.90th=[175113], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 12, max= 192, per=24.68%, avg=86.63, stdev=31.42, samples=141 iops : min= 3, max= 48, avg=21.09, stdev= 7.89, samples=141 lat (usec) : 50=0.20%, 100=1.50%, 250=0.49%, 750=0.03%, 1000=0.29% lat (msec) : 2=4.88%, 4=7.00%, 10=9.90%, 20=26.86%, 50=41.37% lat (msec) : 100=6.93%, 250=0.52%, 500=0.03% cpu : usr=0.09%, sys=11.14%, ctx=7369, 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=335KiB/s (343kB/s), 84.2KiB/s-85.1KiB/s (86.2kB/s-87.2kB/s), io=23.4MiB (24.6MB), run=70374-71592msec WRITE: bw=351KiB/s (360kB/s), 87.2KiB/s-90.2KiB/s (89.3kB/s-92.4kB/s), io=24.6MiB (25.7MB), run=70374-71592msec rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=188933: Wed Jul 15 10:19:12 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(2956KiB/65070msec) clat (msec): min=7, max=768, avg=36.86, stdev=36.81 lat (msec): min=7, max=768, avg=36.86, stdev=36.81 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 52], 90.00th=[ 67], 95.00th=[ 87], | 99.00th=[ 129], 99.50th=[ 174], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 111, per=19.58%, avg=45.22, stdev=19.11, samples=127 iops : min= 1, max= 27, avg=10.74, stdev= 4.82, samples=127 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(3076KiB/65070msec); 0 zone resets clat (msec): min=11, max=171, avg=48.81, stdev=26.34 lat (msec): min=11, max=171, avg=48.81, stdev=26.34 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 57], 80.00th=[ 67], 90.00th=[ 84], 95.00th=[ 101], | 99.00th=[ 142], 99.50th=[ 163], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 7, max= 87, per=19.64%, avg=47.33, stdev=15.53, samples=127 iops : min= 1, max= 21, avg=11.26, stdev= 3.97, samples=127 lat (msec) : 10=0.80%, 20=16.17%, 50=53.08%, 100=25.78%, 250=4.04% lat (msec) : 1000=0.07% cpu : usr=0.06%, sys=4.11%, ctx=2215, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=740,769,0,0 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=188934: Wed Jul 15 10:19:12 2026 read: IOPS=16, BW=65.6KiB/s (67.2kB/s)(5940KiB/90485msec) clat (msec): min=3, max=694, avg=23.51, stdev=28.41 lat (msec): min=3, max=694, avg=23.51, stdev=28.41 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 53], 95.00th=[ 70], | 99.00th=[ 117], 99.50th=[ 127], 99.90th=[ 213], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 240, per=28.47%, avg=65.76, stdev=49.58, samples=178 iops : min= 1, max= 60, avg=15.90, stdev=12.46, samples=178 write: IOPS=17, BW=70.2KiB/s (71.8kB/s)(6348KiB/90485msec); 0 zone resets clat (msec): min=6, max=229, avg=34.82, stdev=25.59 lat (msec): min=6, max=229, avg=34.83, stdev=25.59 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 71], 95.00th=[ 86], | 99.00th=[ 116], 99.50th=[ 142], 99.90th=[ 201], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 15, max= 199, per=29.09%, avg=70.12, stdev=45.85, samples=178 iops : min= 3, max= 49, avg=16.99, stdev=11.53, samples=178 lat (msec) : 4=0.07%, 10=16.24%, 20=33.82%, 50=33.50%, 100=14.36% lat (msec) : 250=1.99%, 750=0.03% cpu : usr=0.09%, sys=4.75%, ctx=5312, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188935: Wed Jul 15 10:19:12 2026 read: IOPS=16, BW=66.4KiB/s (68.0kB/s)(6028KiB/90744msec) clat (msec): min=3, max=183, avg=23.31, stdev=21.36 lat (msec): min=3, max=183, avg=23.31, stdev=21.36 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 35], 90.00th=[ 53], 95.00th=[ 69], | 99.00th=[ 100], 99.50th=[ 114], 99.90th=[ 169], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 7, max= 224, per=28.72%, avg=66.35, stdev=46.15, samples=178 iops : min= 1, max= 56, avg=16.04, stdev=11.59, samples=178 write: IOPS=17, BW=68.0KiB/s (70.6kB/s)(6260KiB/90744msec); 0 zone resets clat (msec): min=6, max=728, avg=35.34, stdev=31.82 lat (msec): min=6, max=728, avg=35.34, stdev=31.82 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 68], 95.00th=[ 85], | 99.00th=[ 138], 99.50th=[ 165], 99.90th=[ 232], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 208, per=28.53%, avg=68.76, stdev=46.21, samples=178 iops : min= 3, max= 52, avg=16.65, stdev=11.62, samples=178 lat (msec) : 4=0.07%, 10=15.49%, 20=34.24%, 50=33.79%, 100=14.39% lat (msec) : 250=1.99%, 750=0.03% cpu : usr=0.10%, sys=4.69%, ctx=5322, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188936: Wed Jul 15 10:19:12 2026 read: IOPS=16, BW=66.9KiB/s (68.5kB/s)(6052KiB/90432msec) clat (msec): min=3, max=176, avg=23.64, stdev=21.96 lat (msec): min=3, max=176, avg=23.64, stdev=21.96 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 26], 80.00th=[ 37], 90.00th=[ 54], 95.00th=[ 70], | 99.00th=[ 105], 99.50th=[ 118], 99.90th=[ 155], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 7, max= 223, per=29.36%, avg=67.82, stdev=47.15, samples=176 iops : min= 1, max= 55, avg=16.42, stdev=11.84, samples=176 write: IOPS=17, BW=68.0KiB/s (70.6kB/s)(6236KiB/90432msec); 0 zone resets clat (msec): min=6, max=729, avg=34.86, stdev=29.87 lat (msec): min=6, max=729, avg=34.86, stdev=29.87 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 69], 95.00th=[ 83], | 99.00th=[ 109], 99.50th=[ 138], 99.90th=[ 174], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 200, per=28.65%, avg=69.04, stdev=46.29, samples=178 iops : min= 3, max= 50, avg=16.72, stdev=11.64, samples=178 lat (msec) : 4=0.10%, 10=15.98%, 20=33.40%, 50=33.43%, 100=15.46% lat (msec) : 250=1.60%, 750=0.03% cpu : usr=0.08%, sys=4.86%, ctx=5303, 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=231KiB/s (237kB/s), 45.4KiB/s-66.9KiB/s (46.5kB/s-68.5kB/s), io=20.5MiB (21.5MB), run=65070-90744msec WRITE: bw=242KiB/s (247kB/s), 47.3KiB/s-70.2KiB/s (48.4kB/s-71.8kB/s), io=21.4MiB (22.4MB), run=65070-90744msec 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=188972: Wed Jul 15 10:19:37 2026 read: IOPS=19, BW=304KiB/s (311kB/s)(5920KiB/19469msec) clat (usec): min=44, max=114761, avg=26340.88, stdev=16344.69 lat (usec): min=44, max=114763, avg=26344.18, stdev=16343.99 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 111], 10.00th=[ 11600], 20.00th=[ 15008], | 30.00th=[ 17695], 40.00th=[ 20579], 50.00th=[ 23987], 60.00th=[ 27132], | 70.00th=[ 29754], 80.00th=[ 35914], 90.00th=[ 48497], 95.00th=[ 54789], | 99.00th=[ 85459], 99.50th=[107480], 99.90th=[114820], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 63, max= 576, per=24.60%, avg=301.08, stdev=105.04, samples=38 iops : min= 3, max= 36, avg=18.21, stdev= 6.73, samples=38 write: IOPS=20, BW=327KiB/s (335kB/s)(6368KiB/19469msec); 0 zone resets clat (usec): min=1266, max=145352, avg=24212.32, stdev=21653.93 lat (usec): min=1268, max=145354, avg=24214.04, stdev=21653.96 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2737], 10.00th=[ 3818], 20.00th=[ 6325], | 30.00th=[ 10421], 40.00th=[ 13829], 50.00th=[ 17957], 60.00th=[ 22152], | 70.00th=[ 29754], 80.00th=[ 40109], 90.00th=[ 53740], 95.00th=[ 67634], | 99.00th=[ 95945], 99.50th=[137364], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 191, max= 640, per=25.42%, avg=327.42, stdev=100.86, samples=38 iops : min= 11, max= 40, avg=19.87, stdev= 6.44, samples=38 lat (usec) : 50=0.26%, 100=2.08%, 250=0.78%, 500=0.13% lat (msec) : 2=1.04%, 4=4.69%, 10=9.90%, 20=27.47%, 50=43.75% lat (msec) : 100=9.38%, 250=0.52% cpu : usr=0.09%, sys=12.67%, ctx=2160, 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=188973: Wed Jul 15 10:19:37 2026 read: IOPS=18, BW=294KiB/s (301kB/s)(5744KiB/19555msec) clat (usec): min=58, max=104993, avg=29059.58, stdev=17137.20 lat (usec): min=59, max=104994, avg=29060.68, stdev=17137.28 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 6718], 10.00th=[ 13304], 20.00th=[ 16319], | 30.00th=[ 19268], 40.00th=[ 22414], 50.00th=[ 25560], 60.00th=[ 30016], | 70.00th=[ 34341], 80.00th=[ 38536], 90.00th=[ 49021], 95.00th=[ 65274], | 99.00th=[ 98042], 99.50th=[ 98042], 99.90th=[105382], 99.95th=[105382], | 99.99th=[105382] bw ( KiB/s): min= 160, max= 416, per=23.87%, avg=292.18, stdev=68.26, samples=38 iops : min= 10, max= 26, avg=17.66, stdev= 4.30, samples=38 write: IOPS=20, BW=335KiB/s (343kB/s)(6544KiB/19555msec); 0 zone resets clat (usec): min=1426, max=77253, avg=22027.21, stdev=17041.85 lat (usec): min=1428, max=77256, avg=22039.35, stdev=17032.94 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2835], 10.00th=[ 3720], 20.00th=[ 5538], | 30.00th=[ 9765], 40.00th=[13435], 50.00th=[17695], 60.00th=[22152], | 70.00th=[29230], 80.00th=[38011], 90.00th=[46400], 95.00th=[54264], | 99.00th=[68682], 99.50th=[73925], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 160, max= 608, per=25.59%, avg=329.63, stdev=99.08, samples=38 iops : min= 10, max= 38, avg=20.03, stdev= 6.35, samples=38 lat (usec) : 100=1.17%, 250=0.65% lat (msec) : 2=1.43%, 4=5.08%, 10=10.81%, 20=25.13%, 50=47.01% lat (msec) : 100=8.59%, 250=0.13% cpu : usr=0.09%, sys=12.57%, ctx=2161, 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=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=188974: Wed Jul 15 10:19:37 2026 read: IOPS=20, BW=320KiB/s (328kB/s)(6256KiB/19532msec) clat (usec): min=43, max=137074, avg=27942.05, stdev=17862.74 lat (usec): min=44, max=137075, avg=27953.48, stdev=17865.88 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 233], 10.00th=[ 12518], 20.00th=[ 15795], | 30.00th=[ 18220], 40.00th=[ 21365], 50.00th=[ 24773], 60.00th=[ 27132], | 70.00th=[ 31589], 80.00th=[ 37487], 90.00th=[ 48497], 95.00th=[ 60031], | 99.00th=[ 93848], 99.50th=[108528], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 95, max= 576, per=26.02%, avg=318.50, stdev=90.85, samples=38 iops : min= 5, max= 36, avg=19.32, stdev= 5.80, samples=38 write: IOPS=19, BW=309KiB/s (316kB/s)(6032KiB/19532msec); 0 zone resets clat (usec): min=1722, max=101601, avg=22727.26, stdev=18319.61 lat (usec): min=1723, max=101602, avg=22729.00, stdev=18319.58 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2769], 10.00th=[ 3621], 20.00th=[ 5669], | 30.00th=[ 11469], 40.00th=[ 14615], 50.00th=[ 18482], 60.00th=[ 22676], | 70.00th=[ 28443], 80.00th=[ 36963], 90.00th=[ 49021], 95.00th=[ 60031], | 99.00th=[ 87557], 99.50th=[101188], 99.90th=[101188], 99.95th=[101188], | 99.99th=[101188] bw ( KiB/s): min= 127, max= 477, per=23.53%, avg=303.03, stdev=92.33, samples=38 iops : min= 7, max= 29, avg=18.34, stdev= 5.73, samples=38 lat (usec) : 50=0.26%, 100=1.69%, 250=0.65% lat (msec) : 2=0.91%, 4=5.08%, 10=8.46%, 20=27.34%, 50=46.48% lat (msec) : 100=8.59%, 250=0.52% cpu : usr=0.06%, sys=12.71%, ctx=2071, 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=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=188975: Wed Jul 15 10:19:37 2026 read: IOPS=19, BW=317KiB/s (325kB/s)(6032KiB/19018msec) clat (usec): min=48, max=118505, avg=27163.76, stdev=18976.84 lat (usec): min=48, max=118506, avg=27164.64, stdev=18976.82 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 388], 20.00th=[ 14615], | 30.00th=[ 17695], 40.00th=[ 21103], 50.00th=[ 24511], 60.00th=[ 28705], | 70.00th=[ 32637], 80.00th=[ 37487], 90.00th=[ 46400], 95.00th=[ 64226], | 99.00th=[102237], 99.50th=[105382], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 159, max= 480, per=25.67%, avg=314.24, stdev=89.13, samples=37 iops : min= 9, max= 30, avg=19.03, stdev= 5.71, samples=37 write: IOPS=20, BW=329KiB/s (337kB/s)(6256KiB/19018msec); 0 zone resets clat (usec): min=1323, max=128996, avg=22137.04, stdev=20827.57 lat (usec): min=1325, max=128997, avg=22139.82, stdev=20826.89 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2311], 10.00th=[ 3032], 20.00th=[ 5276], | 30.00th=[ 8455], 40.00th=[ 12125], 50.00th=[ 16319], 60.00th=[ 19792], | 70.00th=[ 26608], 80.00th=[ 35390], 90.00th=[ 50594], 95.00th=[ 64750], | 99.00th=[ 89654], 99.50th=[128451], 99.90th=[129500], 99.95th=[129500], | 99.99th=[129500] bw ( KiB/s): min= 159, max= 576, per=25.38%, avg=326.89, stdev=96.49, samples=37 iops : min= 9, max= 36, avg=19.81, stdev= 6.19, samples=37 lat (usec) : 50=0.39%, 100=3.39%, 250=0.78%, 500=0.65% lat (msec) : 2=1.56%, 4=5.86%, 10=10.81%, 20=25.26%, 50=42.19% lat (msec) : 100=8.20%, 250=0.91% cpu : usr=0.11%, sys=12.16%, ctx=2001, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=1225KiB/s (1254kB/s), 294KiB/s-320KiB/s (301kB/s-328kB/s), io=23.4MiB (24.5MB), run=19018-19555msec WRITE: bw=1289KiB/s (1320kB/s), 309KiB/s-335KiB/s (316kB/s-343kB/s), io=24.6MiB (25.8MB), run=19018-19555msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188967: Wed Jul 15 10:19:43 2026 read: IOPS=14, BW=238KiB/s (243kB/s)(5920KiB/24911msec) clat (msec): min=4, max=134, avg=25.01, stdev=19.94 lat (msec): min=4, max=134, avg=25.01, stdev=19.94 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 52], 95.00th=[ 68], | 99.00th=[ 99], 99.50th=[ 129], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 31, max= 606, per=24.62%, avg=234.43, stdev=135.75, samples=49 iops : min= 1, max= 37, avg=13.98, stdev= 8.50, samples=49 write: IOPS=15, BW=256KiB/s (262kB/s)(6368KiB/24911msec); 0 zone resets clat (msec): min=8, max=213, avg=39.24, stdev=26.89 lat (msec): min=8, max=213, avg=39.24, stdev=26.89 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 56], 90.00th=[ 71], 95.00th=[ 92], | 99.00th=[ 146], 99.50th=[ 186], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 31, max= 672, per=25.34%, avg=253.90, stdev=126.25, samples=49 iops : min= 1, max= 42, avg=15.20, stdev= 8.01, samples=49 lat (msec) : 10=8.59%, 20=30.08%, 50=42.84%, 100=16.02%, 250=2.47% cpu : usr=0.10%, sys=5.17%, ctx=1394, 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=188968: Wed Jul 15 10:19:43 2026 read: IOPS=14, BW=230KiB/s (236kB/s)(5744KiB/24963msec) clat (msec): min=4, max=179, avg=26.12, stdev=21.49 lat (msec): min=4, max=179, avg=26.12, stdev=21.49 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 57], 95.00th=[ 70], | 99.00th=[ 103], 99.50th=[ 122], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 52, max= 734, per=24.50%, avg=233.25, stdev=127.99, samples=48 iops : min= 3, max= 45, avg=13.92, stdev= 8.04, samples=48 write: IOPS=16, BW=262KiB/s (268kB/s)(6544KiB/24963msec); 0 zone resets clat (msec): min=6, max=207, avg=37.92, stdev=24.02 lat (msec): min=6, max=207, avg=37.92, stdev=24.01 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 45], 80.00th=[ 54], 90.00th=[ 67], 95.00th=[ 75], | 99.00th=[ 136], 99.50th=[ 146], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 63, max= 701, per=25.94%, avg=259.90, stdev=130.90, samples=49 iops : min= 3, max= 43, avg=15.59, stdev= 8.24, samples=49 lat (msec) : 10=6.51%, 20=30.99%, 50=44.92%, 100=15.76%, 250=1.82% cpu : usr=0.06%, sys=5.18%, ctx=1354, 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=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=188969: Wed Jul 15 10:19:43 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(6256KiB/25138msec) clat (msec): min=4, max=131, avg=26.79, stdev=22.37 lat (msec): min=4, max=131, avg=26.79, stdev=22.37 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 60], 95.00th=[ 75], | 99.00th=[ 115], 99.50th=[ 125], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 62, max= 574, per=25.83%, avg=245.88, stdev=138.91, samples=49 iops : min= 3, max= 35, avg=14.69, stdev= 8.75, samples=49 write: IOPS=14, BW=240KiB/s (246kB/s)(6032KiB/25138msec); 0 zone resets clat (msec): min=8, max=205, avg=38.72, stdev=27.10 lat (msec): min=8, max=205, avg=38.73, stdev=27.10 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 56], 90.00th=[ 73], 95.00th=[ 89], | 99.00th=[ 138], 99.50th=[ 159], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 94, max= 672, per=23.10%, avg=231.45, stdev=123.40, samples=49 iops : min= 5, max= 42, avg=13.80, stdev= 7.81, samples=49 lat (msec) : 10=8.98%, 20=30.34%, 50=41.67%, 100=16.28%, 250=2.73% cpu : usr=0.09%, sys=5.10%, ctx=1377, 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=188970: Wed Jul 15 10:19:43 2026 read: IOPS=15, BW=242KiB/s (247kB/s)(6032KiB/24967msec) clat (msec): min=4, max=131, avg=27.09, stdev=21.49 lat (msec): min=4, max=131, avg=27.09, stdev=21.49 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 59], 95.00th=[ 74], | 99.00th=[ 108], 99.50th=[ 127], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 63, max= 669, per=25.09%, avg=238.82, stdev=138.08, samples=49 iops : min= 3, max= 41, avg=14.27, stdev= 8.65, samples=49 write: IOPS=15, BW=251KiB/s (257kB/s)(6256KiB/24967msec); 0 zone resets clat (msec): min=6, max=153, avg=37.55, stdev=24.60 lat (msec): min=6, max=153, avg=37.55, stdev=24.60 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 68], 95.00th=[ 87], | 99.00th=[ 136], 99.50th=[ 148], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 95, max= 699, per=24.72%, avg=247.71, stdev=126.35, samples=49 iops : min= 5, max= 43, avg=14.82, stdev= 7.98, samples=49 lat (msec) : 10=7.29%, 20=31.51%, 50=42.19%, 100=16.54%, 250=2.47% cpu : usr=0.07%, sys=5.09%, ctx=1316, 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=953KiB/s (976kB/s), 230KiB/s-249KiB/s (236kB/s-255kB/s), io=23.4MiB (24.5MB), run=24911-25138msec WRITE: bw=1002KiB/s (1027kB/s), 240KiB/s-262KiB/s (246kB/s-268kB/s), io=24.6MiB (25.8MB), run=24911-25138msec 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=188984: Wed Jul 15 10:19:52 2026 read: IOPS=2, BW=2058KiB/s (2107kB/s)(7168KiB/3483msec) clat (usec): min=382, max=1993.9k, avg=337236.06, stdev=733063.71 lat (usec): min=382, max=1993.9k, avg=337237.31, stdev=733063.99 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], | 20.00th=[ 510], 30.00th=[ 545], 40.00th=[ 545], | 50.00th=[ 111674], 60.00th=[ 123208], 70.00th=[ 123208], | 80.00th=[ 129500], 90.00th=[1988101], 95.00th=[1988101], | 99.00th=[1988101], 99.50th=[1988101], 99.90th=[1988101], | 99.95th=[1988101], 99.99th=[1988101] bw ( KiB/s): min= 1969, max=10219, per=100.00%, avg=6094.00, stdev=5833.63, samples=2 iops : min= 1, max= 9, avg= 5.00, stdev= 5.66, samples=2 write: IOPS=1, BW=1470KiB/s (1505kB/s)(5120KiB/3483msec); 0 zone resets clat (msec): min=78, max=315, avg=197.91, stdev=110.48 lat (msec): min=78, max=315, avg=197.96, stdev=110.48 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 3938, max= 4087, per=59.47%, avg=4012.50, stdev=105.36, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=20.71%, ctx=706, 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=188985: Wed Jul 15 10:19:52 2026 read: IOPS=0, BW=482KiB/s (494kB/s)(2048KiB/4249msec) clat (msec): min=163, max=222, avg=193.40, stdev=41.74 lat (msec): min=163, max=222, avg=193.40, stdev=41.74 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 224], 95.00th=[ 224], | 99.00th=[ 224], 99.50th=[ 224], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 1753, max= 2027, per=39.22%, avg=1890.00, stdev=193.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2410KiB/s (2468kB/s)(10.0MiB/4249msec); 0 zone resets clat (msec): min=59, max=1995, avg=375.34, stdev=574.87 lat (msec): min=59, max=1995, avg=375.48, stdev=574.84 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 127], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 190], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 259], 90.00th=[ 368], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 1753, max= 8159, per=53.13%, avg=3585.00, stdev=2701.48, samples=5 iops : min= 1, max= 7, avg= 2.80, stdev= 2.49, samples=5 lat (msec) : 100=8.33%, 250=66.67%, 500=16.67%, 2000=8.33% cpu : usr=0.02%, sys=24.01%, ctx=232, 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=188986: Wed Jul 15 10:19:52 2026 read: IOPS=1, BW=1651KiB/s (1690kB/s)(6144KiB/3722msec) clat (usec): min=379, max=255012, avg=87857.10, stdev=108719.17 lat (usec): min=380, max=255014, avg=87858.33, stdev=108719.56 clat percentiles (usec): | 1.00th=[ 379], 5.00th=[ 379], 10.00th=[ 379], 20.00th=[ 445], | 30.00th=[ 445], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 91751], | 70.00th=[179307], 80.00th=[179307], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 2027, max= 7876, per=100.00%, avg=4951.50, stdev=4135.87, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1651KiB/s (1690kB/s)(6144KiB/3722msec); 0 zone resets clat (msec): min=138, max=2060, avg=502.91, stdev=764.38 lat (msec): min=138, max=2060, avg=502.96, stdev=764.39 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 211], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 1777, max= 4055, per=43.79%, avg=2954.50, stdev=1209.22, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=19.99%, ctx=138, 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=188987: Wed Jul 15 10:19:52 2026 read: IOPS=1, BW=1676KiB/s (1717kB/s)(5120KiB/3054msec) clat (usec): min=485, max=142209, avg=95167.41, stdev=55221.45 lat (usec): min=486, max=142210, avg=95168.54, stdev=55221.51 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], 20.00th=[ 486], | 30.00th=[101188], 40.00th=[101188], 50.00th=[108528], 60.00th=[108528], | 70.00th=[123208], 80.00th=[123208], 90.00th=[141558], 95.00th=[141558], | 99.00th=[141558], 99.50th=[141558], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2347KiB/s (2403kB/s)(7168KiB/3054msec); 0 zone resets clat (msec): min=61, max=1858, avg=365.13, stdev=660.81 lat (msec): min=61, max=1858, avg=365.31, stdev=660.77 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 104], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 232], 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= 5224, max= 6144, per=84.24%, avg=5684.00, stdev=650.54, samples=2 iops : min= 5, max= 6, avg= 5.50, stdev= 0.71, samples=2 lat (usec) : 500=8.33% lat (msec) : 100=25.00%, 250=58.33%, 2000=8.33% cpu : usr=0.00%, sys=22.14%, ctx=542, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4820KiB/s (4936kB/s), 482KiB/s-2058KiB/s (494kB/s-2107kB/s), io=20.0MiB (20.0MB), run=3054-4249msec WRITE: bw=6748KiB/s (6910kB/s), 1470KiB/s-2410KiB/s (1505kB/s-2468kB/s), io=28.0MiB (29.4MB), run=3054-4249msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188989: Wed Jul 15 10:19:52 2026 read: IOPS=1, BW=1594KiB/s (1633kB/s)(7168KiB/4496msec) clat (msec): min=46, max=2149, avg=500.68, stdev=752.49 lat (msec): min=46, max=2149, avg=500.68, stdev=752.49 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 57], | 30.00th=[ 80], 40.00th=[ 80], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 600], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 1980, max= 3968, per=55.50%, avg=2509.75, stdev=972.66, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1139KiB/s (1166kB/s)(5120KiB/4496msec); 0 zone resets clat (msec): min=60, max=242, avg=148.51, stdev=76.91 lat (msec): min=61, max=242, avg=148.59, stdev=76.91 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 93], 40.00th=[ 93], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1980, max= 1984, per=31.30%, avg=1982.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=5.72%, ctx=95, 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=188990: Wed Jul 15 10:19:52 2026 read: IOPS=0, BW=454KiB/s (465kB/s)(2048KiB/4514msec) clat (usec): min=62886, max=98293, avg=80589.99, stdev=25036.61 lat (usec): min=62887, max=98295, avg=80591.45, stdev=25036.69 clat percentiles (usec): | 1.00th=[62653], 5.00th=[62653], 10.00th=[62653], 20.00th=[62653], | 30.00th=[62653], 40.00th=[62653], 50.00th=[62653], 60.00th=[98042], | 70.00th=[98042], 80.00th=[98042], 90.00th=[98042], 95.00th=[98042], | 99.00th=[98042], 99.50th=[98042], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 1818, max= 1984, per=42.04%, avg=1901.00, stdev=117.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2268KiB/s (2323kB/s)(10.0MiB/4514msec); 0 zone resets clat (msec): min=72, max=2079, avg=409.00, stdev=600.36 lat (msec): min=72, max=2079, avg=409.09, stdev=600.36 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 159], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 236], 80.00th=[ 300], 90.00th=[ 542], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 2043, max= 5953, per=55.29%, avg=3501.25, stdev=1867.34, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 1.71, samples=4 lat (msec) : 100=25.00%, 250=50.00%, 500=8.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.77%, ctx=119, 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=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=188991: Wed Jul 15 10:19:52 2026 read: IOPS=1, BW=1458KiB/s (1493kB/s)(6144KiB/4215msec) clat (msec): min=45, max=250, avg=138.07, stdev=76.81 lat (msec): min=45, max=250, avg=138.07, stdev=76.81 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 63], | 30.00th=[ 63], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 142], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 251], 95.00th=[ 251], | 99.00th=[ 251], 99.50th=[ 251], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 1980, max= 5953, per=73.57%, avg=3327.00, stdev=2274.44, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1458KiB/s (1493kB/s)(6144KiB/4215msec); 0 zone resets clat (msec): min=81, max=2085, avg=527.35, stdev=766.90 lat (msec): min=81, max=2085, avg=527.43, stdev=766.89 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 253], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 2089], 95.00th=[ 2089], | 99.00th=[ 2089], 99.50th=[ 2089], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 1858, max= 2048, per=31.29%, avg=1981.00, stdev=75.07, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=41.67%, 500=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=10.35%, ctx=99, 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=188992: Wed Jul 15 10:19:52 2026 read: IOPS=1, BW=1131KiB/s (1158kB/s)(5120KiB/4528msec) clat (msec): min=36, max=346, avg=205.12, stdev=140.91 lat (msec): min=36, max=346, avg=205.12, stdev=140.91 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 37], 10.00th=[ 37], 20.00th=[ 37], | 30.00th=[ 73], 40.00th=[ 73], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 3961, max= 3968, per=87.67%, avg=3964.50, stdev= 4.95, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1583KiB/s (1621kB/s)(7168KiB/4528msec); 0 zone resets clat (msec): min=90, max=2155, avg=487.30, stdev=739.09 lat (msec): min=90, max=2155, avg=487.39, stdev=739.08 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 138], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 249], 60.00th=[ 262], | 70.00th=[ 262], 80.00th=[ 305], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 1921, max= 4096, per=42.43%, avg=2686.67, stdev=1222.04, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 50=8.33%, 100=16.67%, 250=25.00%, 500=41.67%, >=2000=8.33% cpu : usr=0.02%, sys=9.81%, ctx=108, 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=4523KiB/s (4632kB/s), 454KiB/s-1594KiB/s (465kB/s-1633kB/s), io=20.0MiB (20.0MB), run=4215-4528msec WRITE: bw=6332KiB/s (6484kB/s), 1139KiB/s-2268KiB/s (1166kB/s-2323kB/s), io=28.0MiB (29.4MB), run=4215-4528msec 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=189003: Wed Jul 15 10:20:00 2026 read: IOPS=1, BW=7429KiB/s (7608kB/s)(12.0MiB/1654msec) clat (msec): min=398, max=675, avg=536.58, stdev=138.18 lat (msec): min=398, max=675, avg=536.59, stdev=138.18 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 6954, max= 8110, per=78.25%, avg=7532.00, stdev=817.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=27.04%, ctx=864, 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=189004: Wed Jul 15 10:20:00 2026 read: IOPS=0, BW=2407KiB/s (2464kB/s)(4096KiB/1702msec) clat (nsec): min=489540k, max=489540k, avg=489539619.00, stdev= 0.00 lat (nsec): min=489542k, max=489542k, avg=489542223.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 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= 6059, max= 6059, per=62.94%, avg=6059.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4813KiB/s (4929kB/s)(8192KiB/1702msec); 0 zone resets clat (msec): min=572, max=599, avg=586.26, stdev=19.36 lat (msec): min=572, max=600, avg=586.56, stdev=19.37 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 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= 8110, max= 8110, per=52.12%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=15.81%, ctx=461, 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=189005: Wed Jul 15 10:20:00 2026 write: IOPS=1, BW=5835KiB/s (5975kB/s)(12.0MiB/2106msec); 0 zone resets clat (msec): min=430, max=994, avg=683.07, stdev=286.38 lat (msec): min=430, max=994, avg=683.41, stdev=286.39 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 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= 8110, max= 8175, per=52.33%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=8.27%, 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=189006: Wed Jul 15 10:20:00 2026 write: IOPS=1, BW=7543KiB/s (7724kB/s)(12.0MiB/1629msec); 0 zone resets clat (msec): min=375, max=720, avg=529.33, stdev=175.38 lat (msec): min=376, max=720, avg=529.67, stdev=175.39 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8110, max= 8175, per=52.33%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=8.60%, ctx=50, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=9626KiB/s (9857kB/s), 2407KiB/s-7429KiB/s (2464kB/s-7608kB/s), io=16.0MiB (16.8MB), run=1654-1702msec WRITE: bw=15.2MiB/s (15.9MB/s), 4813KiB/s-7543KiB/s (4929kB/s-7724kB/s), io=32.0MiB (33.6MB), run=1629-2106msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188999: Wed Jul 15 10:20:00 2026 read: IOPS=1, BW=6575KiB/s (6732kB/s)(12.0MiB/1869msec) clat (msec): min=172, max=1210, avg=615.71, stdev=534.99 lat (msec): min=172, max=1210, avg=615.71, stdev=534.99 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min=11100, max=11100, per=100.00%, avg=11100.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.83%, ctx=52, 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=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=189000: Wed Jul 15 10:20:00 2026 read: IOPS=0, BW=1932KiB/s (1978kB/s)(4096KiB/2120msec) clat (nsec): min=646647k, max=646647k, avg=646647314.00, stdev= 0.00 lat (nsec): min=646650k, max=646650k, avg=646649576.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3864KiB/s (3957kB/s)(8192KiB/2120msec); 0 zone resets clat (msec): min=183, max=1246, avg=714.62, stdev=751.58 lat (msec): min=183, max=1246, avg=715.04, stdev=751.68 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.06%, ctx=47, 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=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=189001: Wed Jul 15 10:20:00 2026 write: IOPS=1, BW=5456KiB/s (5587kB/s)(12.0MiB/2252msec); 0 zone resets clat (msec): min=395, max=1250, avg=740.28, stdev=450.99 lat (msec): min=395, max=1251, avg=740.89, stdev=451.27 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8126, max= 8192, per=56.08%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=10.57%, ctx=66, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=189002: Wed Jul 15 10:20:00 2026 write: IOPS=2, BW=8264KiB/s (8462kB/s)(12.0MiB/1487msec); 0 zone resets clat (msec): min=362, max=548, avg=471.98, stdev=97.11 lat (msec): min=362, max=548, avg=472.25, stdev=97.20 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 6725, max= 6725, per=46.22%, avg=6725.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=13.80%, ctx=57, 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=7728KiB/s (7914kB/s), 1932KiB/s-6575KiB/s (1978kB/s-6732kB/s), io=16.0MiB (16.8MB), run=1869-2120msec WRITE: bw=14.2MiB/s (14.9MB/s), 3864KiB/s-8264KiB/s (3957kB/s-8462kB/s), io=32.0MiB (33.6MB), run=1487-2252msec