== sanity test 398b: DIO and buffer IO race ============== 23:11:59 (1788837119) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.25396 s, 8.0 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=144327: Mon Sep 7 23:14:41 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(5992KiB/138785msec) clat (usec): min=29, max=958149, avg=44989.44, stdev=42689.57 lat (usec): min=29, max=958202, avg=44994.26, stdev=42689.88 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 69], 20.00th=[ 18220], | 30.00th=[ 25560], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 45876], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[164627], 99.50th=[198181], 99.90th=[308282], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 109, per=25.50%, avg=42.84, stdev=18.91, samples=271 iops : min= 1, max= 27, avg=10.07, stdev= 4.78, samples=271 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6296KiB/138785msec); 0 zone resets clat (usec): min=732, max=541321, avg=44999.98, stdev=49172.19 lat (usec): min=732, max=541322, avg=45002.59, stdev=49172.84 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1369], 20.00th=[ 3720], | 30.00th=[ 7635], 40.00th=[ 16712], 50.00th=[ 31327], 60.00th=[ 43779], | 70.00th=[ 60031], 80.00th=[ 79168], 90.00th=[110625], 95.00th=[139461], | 99.00th=[196084], 99.50th=[229639], 99.90th=[408945], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 95, per=25.62%, avg=45.10, stdev=18.93, samples=271 iops : min= 1, max= 23, avg=10.63, stdev= 4.77, samples=271 lat (usec) : 50=0.88%, 100=5.63%, 250=0.72%, 500=0.16%, 750=0.10% lat (usec) : 1000=0.23% lat (msec) : 2=6.74%, 4=3.81%, 10=6.67%, 20=7.06%, 50=32.55% lat (msec) : 100=25.49%, 250=9.70%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.54%, ctx=6038, 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=144329: Mon Sep 7 23:14:41 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5940KiB/139225msec) clat (usec): min=20, max=447698, avg=43910.70, stdev=36322.07 lat (usec): min=20, max=447699, avg=43916.25, stdev=36322.18 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 72], 20.00th=[ 18220], | 30.00th=[ 24773], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 54264], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[154141], 99.50th=[208667], 99.90th=[312476], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 5, max= 112, per=25.19%, avg=42.32, stdev=20.75, samples=273 iops : min= 1, max= 28, avg= 9.93, stdev= 5.22, samples=273 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6348KiB/139225msec); 0 zone resets clat (usec): min=743, max=1061.4k, avg=46285.69, stdev=53250.93 lat (usec): min=743, max=1061.4k, avg=46288.28, stdev=53251.33 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1532], | 20.00th=[ 4490], 30.00th=[ 9241], 40.00th=[ 20317], | 50.00th=[ 34866], 60.00th=[ 47449], 70.00th=[ 60556], | 80.00th=[ 78119], 90.00th=[ 109577], 95.00th=[ 137364], | 99.00th=[ 202376], 99.50th=[ 238027], 99.90th=[ 396362], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 5, max= 103, per=25.65%, avg=45.14, stdev=18.42, samples=273 iops : min= 1, max= 25, avg=10.64, stdev= 4.65, samples=273 lat (usec) : 50=0.78%, 100=5.08%, 250=0.55%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=6.18%, 4=3.55%, 10=6.61%, 20=8.17%, 50=32.85% lat (msec) : 100=25.88%, 250=9.70%, 500=0.23%, 2000=0.03% cpu : usr=0.07%, sys=4.63%, ctx=6263, 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=144330: Mon Sep 7 23:14:41 2026 read: IOPS=10, BW=42.3KiB/s (43.4kB/s)(6028KiB/142359msec) clat (usec): min=31, max=353129, avg=43998.18, stdev=33939.43 lat (usec): min=31, max=353131, avg=44000.02, stdev=33939.60 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 76], 20.00th=[ 19792], | 30.00th=[ 25560], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 54264], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[147850], 99.50th=[166724], 99.90th=[278922], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 103, per=25.41%, avg=42.68, stdev=19.44, samples=274 iops : min= 1, max= 25, avg=10.03, stdev= 4.89, samples=274 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(6260KiB/142359msec); 0 zone resets clat (usec): min=827, max=1303.6k, avg=48251.50, stdev=60654.25 lat (usec): min=828, max=1303.6k, avg=48261.78, stdev=60664.34 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1565], | 20.00th=[ 4293], 30.00th=[ 9503], 40.00th=[ 20841], | 50.00th=[ 35390], 60.00th=[ 48497], 70.00th=[ 62129], | 80.00th=[ 81265], 90.00th=[ 111674], 95.00th=[ 139461], | 99.00th=[ 206570], 99.50th=[ 308282], 99.90th=[ 675283], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 7, max= 135, per=24.87%, avg=43.77, stdev=20.64, samples=277 iops : min= 1, max= 33, avg=10.30, stdev= 5.18, samples=277 lat (usec) : 50=0.98%, 100=4.52%, 250=0.42%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=6.32%, 4=3.61%, 10=6.12%, 20=7.68%, 50=33.43% lat (msec) : 100=26.69%, 250=9.44%, 500=0.36%, 750=0.03%, 2000=0.03% cpu : usr=0.08%, sys=4.56%, ctx=6279, 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=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=144331: Mon Sep 7 23:14:41 2026 read: IOPS=10, BW=42.6KiB/s (43.7kB/s)(6052KiB/141949msec) clat (usec): min=28, max=497963, avg=44031.55, stdev=38412.17 lat (usec): min=28, max=497965, avg=44036.13, stdev=38408.71 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 68], 20.00th=[ 17957], | 30.00th=[ 25297], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 54264], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[166724], 99.50th=[233833], 99.90th=[371196], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 7, max= 118, per=25.73%, avg=43.23, stdev=20.48, samples=273 iops : min= 1, max= 29, avg=10.16, stdev= 5.16, samples=273 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(6236KiB/141949msec); 0 zone resets clat (usec): min=815, max=1261.3k, avg=47970.01, stdev=62520.94 lat (usec): min=816, max=1261.3k, avg=47974.76, stdev=62521.42 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1188], 10.00th=[ 1467], | 20.00th=[ 3916], 30.00th=[ 8848], 40.00th=[ 19792], | 50.00th=[ 34341], 60.00th=[ 47449], 70.00th=[ 62129], | 80.00th=[ 82314], 90.00th=[ 109577], 95.00th=[ 137364], | 99.00th=[ 206570], 99.50th=[ 278922], 99.90th=[ 792724], | 99.95th=[1266680], 99.99th=[1266680] bw ( KiB/s): min= 7, max= 111, per=25.15%, avg=44.27, stdev=20.00, samples=275 iops : min= 1, max= 27, avg=10.41, stdev= 5.02, samples=275 lat (usec) : 50=1.01%, 100=5.66%, 250=0.52%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.18%, 4=4.00%, 10=6.28%, 20=7.16%, 50=32.62% lat (msec) : 100=26.20%, 250=9.34%, 500=0.46%, 750=0.03%, 1000=0.03% lat (msec) : 2000=0.03% cpu : usr=0.08%, sys=4.50%, ctx=6191, 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=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=169KiB/s (173kB/s), 42.3KiB/s-43.2KiB/s (43.4kB/s-44.2kB/s), io=23.4MiB (24.6MB), run=138785-142359msec WRITE: bw=177KiB/s (181kB/s), 43.9KiB/s-45.6KiB/s (44.0kB/s-46.7kB/s), io=24.6MiB (25.7MB), run=138785-142359msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144332: Mon Sep 7 23:17:35 2026 read: IOPS=4, BW=19.0KiB/s (19.5kB/s)(5992KiB/315180msec) clat (msec): min=5, max=1001, avg=42.39, stdev=45.25 lat (msec): min=5, max=1001, avg=42.39, stdev=45.25 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 46], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 113], | 99.00th=[ 201], 99.50th=[ 220], 99.90th=[ 575], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 87, per=29.18%, avg=21.88, stdev=15.06, samples=527 iops : min= 1, max= 21, avg= 4.86, stdev= 3.81, samples=527 write: IOPS=4, BW=19.0KiB/s (20.5kB/s)(6296KiB/315180msec); 0 zone resets clat (msec): min=30, max=876, avg=159.64, stdev=76.01 lat (msec): min=30, max=876, avg=159.64, stdev=76.01 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 82], 20.00th=[ 100], | 30.00th=[ 114], 40.00th=[ 130], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 184], 80.00th=[ 213], 90.00th=[ 253], 95.00th=[ 296], | 99.00th=[ 418], 99.50th=[ 468], 99.90th=[ 634], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 55, per=25.12%, avg=19.85, stdev= 8.97, samples=607 iops : min= 1, max= 13, avg= 4.34, stdev= 2.29, samples=607 lat (msec) : 10=2.12%, 20=11.98%, 50=22.53%, 100=19.56%, 250=38.28% lat (msec) : 500=5.27%, 750=0.20%, 1000=0.03%, 2000=0.03% cpu : usr=0.03%, sys=0.96%, ctx=5131, 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=144333: Mon Sep 7 23:17:35 2026 read: IOPS=4, BW=18.8KiB/s (19.3kB/s)(5940KiB/315129msec) clat (msec): min=4, max=1096, avg=43.23, stdev=52.08 lat (msec): min=4, max=1096, avg=43.24, stdev=52.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 89], 95.00th=[ 114], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 818], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 87, per=29.56%, avg=22.17, stdev=14.60, samples=515 iops : min= 1, max= 21, avg= 4.92, stdev= 3.71, samples=515 write: IOPS=5, BW=20.1KiB/s (20.6kB/s)(6348KiB/315129msec); 0 zone resets clat (msec): min=35, max=736, avg=157.84, stdev=74.17 lat (msec): min=35, max=736, avg=157.85, stdev=74.18 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 81], 20.00th=[ 99], | 30.00th=[ 112], 40.00th=[ 128], 50.00th=[ 140], 60.00th=[ 159], | 70.00th=[ 184], 80.00th=[ 211], 90.00th=[ 259], 95.00th=[ 300], | 99.00th=[ 388], 99.50th=[ 443], 99.90th=[ 592], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 55, per=25.23%, avg=19.93, stdev= 9.21, samples=610 iops : min= 1, max= 13, avg= 4.36, stdev= 2.36, samples=610 lat (msec) : 10=2.21%, 20=11.82%, 50=22.07%, 100=19.63%, 250=37.89% lat (msec) : 500=6.18%, 750=0.13%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=0.99%, ctx=5259, 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=144334: Mon Sep 7 23:17:35 2026 read: IOPS=4, BW=19.1KiB/s (19.5kB/s)(6028KiB/316125msec) clat (msec): min=5, max=577, avg=44.08, stdev=39.87 lat (msec): min=5, max=577, avg=44.08, stdev=39.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 63], 90.00th=[ 88], 95.00th=[ 116], | 99.00th=[ 190], 99.50th=[ 224], 99.90th=[ 388], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 103, per=28.89%, avg=21.67, stdev=14.25, samples=534 iops : min= 1, max= 25, avg= 4.80, stdev= 3.60, samples=534 write: IOPS=4, BW=19.8KiB/s (20.3kB/s)(6260KiB/316125msec); 0 zone resets clat (msec): min=34, max=1230, avg=159.29, stdev=80.03 lat (msec): min=34, max=1230, avg=159.29, stdev=80.03 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 81], 20.00th=[ 97], | 30.00th=[ 112], 40.00th=[ 128], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 211], 90.00th=[ 259], 95.00th=[ 305], | 99.00th=[ 405], 99.50th=[ 460], 99.90th=[ 600], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 48, per=24.70%, avg=19.51, stdev= 9.19, samples=613 iops : min= 1, max= 12, avg= 4.26, stdev= 2.34, samples=613 lat (msec) : 10=2.02%, 20=10.51%, 50=22.66%, 100=21.13%, 250=37.92% lat (msec) : 500=5.53%, 750=0.20%, 2000=0.03% cpu : usr=0.04%, sys=0.99%, ctx=5127, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144335: Mon Sep 7 23:17:35 2026 read: IOPS=4, BW=19.2KiB/s (19.7kB/s)(6052KiB/315271msec) clat (msec): min=5, max=401, avg=43.35, stdev=40.17 lat (msec): min=5, max=401, avg=43.35, stdev=40.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 61], 90.00th=[ 95], 95.00th=[ 125], | 99.00th=[ 197], 99.50th=[ 247], 99.90th=[ 342], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 80, per=30.49%, avg=22.86, stdev=14.92, samples=510 iops : min= 1, max= 20, avg= 5.10, stdev= 3.78, samples=510 write: IOPS=4, BW=19.8KiB/s (20.3kB/s)(6236KiB/315271msec); 0 zone resets clat (msec): min=34, max=1221, avg=159.89, stdev=79.55 lat (msec): min=34, max=1221, avg=159.89, stdev=79.55 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 81], 20.00th=[ 99], | 30.00th=[ 114], 40.00th=[ 129], 50.00th=[ 146], 60.00th=[ 163], | 70.00th=[ 184], 80.00th=[ 213], 90.00th=[ 257], 95.00th=[ 300], | 99.00th=[ 376], 99.50th=[ 435], 99.90th=[ 877], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 48, per=24.84%, avg=19.63, stdev= 9.06, samples=609 iops : min= 1, max= 12, avg= 4.29, stdev= 2.31, samples=609 lat (msec) : 10=1.82%, 20=12.17%, 50=22.49%, 100=19.47%, 250=38.12% lat (msec) : 500=5.76%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=0.99%, ctx=5252, 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=75.0KiB/s (77.8kB/s), 18.8KiB/s-19.2KiB/s (19.3kB/s-19.7kB/s), io=23.4MiB (24.6MB), run=315129-316125msec WRITE: bw=79.5KiB/s (81.4kB/s), 19.8KiB/s-20.1KiB/s (20.3kB/s-20.6kB/s), io=24.6MiB (25.7MB), run=315129-316125msec 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=144399: Mon Sep 7 23:18:15 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(5920KiB/27646msec) clat (usec): min=35, max=209801, avg=36803.94, stdev=32958.81 lat (usec): min=35, max=209803, avg=36805.49, stdev=32958.87 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 14091], 40.00th=[ 27919], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[137364], 99.50th=[149947], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 94, max= 638, per=25.78%, avg=218.34, stdev=99.66, samples=53 iops : min= 5, max= 39, avg=12.92, stdev= 6.30, samples=53 write: IOPS=14, BW=230KiB/s (236kB/s)(6368KiB/27646msec); 0 zone resets clat (usec): min=1429, max=253871, avg=33915.81, stdev=40835.41 lat (usec): min=1430, max=253872, avg=33920.68, stdev=40833.62 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1680], 10.00th=[ 1876], 20.00th=[ 3982], | 30.00th=[ 7111], 40.00th=[ 10814], 50.00th=[ 17171], 60.00th=[ 28443], | 70.00th=[ 39584], 80.00th=[ 59507], 90.00th=[ 90702], 95.00th=[122160], | 99.00th=[214959], 99.50th=[240124], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 63, max= 474, per=26.37%, avg=234.98, stdev=91.79, samples=53 iops : min= 3, max= 29, avg=13.98, stdev= 5.79, samples=53 lat (usec) : 50=1.69%, 100=10.55%, 250=1.30%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.39% lat (msec) : 2=5.73%, 4=4.82%, 10=9.24%, 20=9.51%, 50=29.82% lat (msec) : 100=21.22%, 250=5.34%, 500=0.13% cpu : usr=0.07%, sys=4.87%, ctx=1325, 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=144401: Mon Sep 7 23:18:15 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(5744KiB/27095msec) clat (usec): min=24, max=199965, avg=37250.44, stdev=33488.29 lat (usec): min=24, max=199966, avg=37251.84, stdev=33488.47 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 46], 10.00th=[ 58], 20.00th=[ 71], | 30.00th=[ 13566], 40.00th=[ 27395], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 62653], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[139461], 99.50th=[187696], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 447, per=25.63%, avg=217.06, stdev=103.03, samples=52 iops : min= 1, max= 27, avg=12.85, stdev= 6.51, samples=52 write: IOPS=15, BW=242KiB/s (247kB/s)(6544KiB/27095msec); 0 zone resets clat (usec): min=1158, max=314216, avg=32407.36, stdev=39863.26 lat (usec): min=1159, max=314220, avg=32409.74, stdev=39863.27 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1680], 10.00th=[ 1942], 20.00th=[ 4359], | 30.00th=[ 6587], 40.00th=[ 9896], 50.00th=[ 14877], 60.00th=[ 26346], | 70.00th=[ 41157], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[102237], | 99.00th=[181404], 99.50th=[229639], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 444, per=27.67%, avg=246.58, stdev=100.73, samples=52 iops : min= 1, max= 27, avg=14.71, stdev= 6.43, samples=52 lat (usec) : 50=2.73%, 100=9.38%, 250=0.78%, 500=0.13% lat (msec) : 2=5.86%, 4=4.69%, 10=12.11%, 20=7.81%, 50=28.65% lat (msec) : 100=23.05%, 250=4.56%, 500=0.26% cpu : usr=0.08%, sys=4.68%, ctx=1233, 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=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=144402: Mon Sep 7 23:18:15 2026 read: IOPS=13, BW=221KiB/s (227kB/s)(6256KiB/28244msec) clat (usec): min=33, max=373667, avg=34457.87, stdev=33940.10 lat (usec): min=34, max=373668, avg=34459.25, stdev=33940.15 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 60], 20.00th=[ 73], | 30.00th=[ 13435], 40.00th=[ 25822], 50.00th=[ 31851], 60.00th=[ 39584], | 70.00th=[ 46400], 80.00th=[ 56361], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[123208], 99.50th=[200279], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 62, max= 534, per=26.94%, avg=228.22, stdev=103.57, samples=54 iops : min= 3, max= 33, avg=13.59, stdev= 6.52, samples=54 write: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28244msec); 0 zone resets clat (usec): min=1069, max=361304, avg=38093.20, stdev=45128.36 lat (usec): min=1071, max=361308, avg=38099.35, stdev=45127.15 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1614], 10.00th=[ 1909], 20.00th=[ 4686], | 30.00th=[ 7570], 40.00th=[ 13566], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[114820], | 99.00th=[246416], 99.50th=[320865], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 31, max= 539, per=24.02%, avg=214.05, stdev=97.93, samples=55 iops : min= 1, max= 33, avg=12.69, stdev= 6.17, samples=55 lat (usec) : 50=2.47%, 100=10.42%, 250=1.04%, 500=0.13% lat (msec) : 2=5.60%, 4=3.26%, 10=9.38%, 20=6.51%, 50=34.64% lat (msec) : 100=22.14%, 250=3.91%, 500=0.52% cpu : usr=0.09%, sys=5.14%, ctx=1368, 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=144403: Mon Sep 7 23:18:15 2026 read: IOPS=13, BW=213KiB/s (219kB/s)(6032KiB/28260msec) clat (usec): min=34, max=216770, avg=36488.30, stdev=33075.37 lat (usec): min=34, max=216771, avg=36489.57, stdev=33075.43 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 70], | 30.00th=[ 16712], 40.00th=[ 25297], 50.00th=[ 30802], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[133694], 99.50th=[145753], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 495, per=25.58%, avg=216.69, stdev=105.25, samples=54 iops : min= 1, max= 30, avg=12.83, stdev= 6.57, samples=54 write: IOPS=13, BW=221KiB/s (227kB/s)(6256KiB/28260msec); 0 zone resets clat (usec): min=957, max=275407, avg=36489.77, stdev=43758.08 lat (usec): min=960, max=275408, avg=36493.09, stdev=43757.55 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1549], 10.00th=[ 1860], 20.00th=[ 3654], | 30.00th=[ 7111], 40.00th=[ 11600], 50.00th=[ 18482], 60.00th=[ 30540], | 70.00th=[ 43779], 80.00th=[ 64750], 90.00th=[ 94897], 95.00th=[129500], | 99.00th=[204473], 99.50th=[248513], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 479, per=24.84%, avg=221.36, stdev=107.64, samples=55 iops : min= 1, max= 29, avg=13.16, stdev= 6.79, samples=55 lat (usec) : 50=1.43%, 100=11.07%, 250=0.52%, 500=0.52%, 1000=0.39% lat (msec) : 2=5.47%, 4=4.82%, 10=8.20%, 20=9.64%, 50=29.95% lat (msec) : 100=21.74%, 250=6.12%, 500=0.13% cpu : usr=0.07%, sys=5.18%, ctx=1355, 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=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=848KiB/s (868kB/s), 212KiB/s-221KiB/s (217kB/s-227kB/s), io=23.4MiB (24.5MB), run=27095-28260msec WRITE: bw=892KiB/s (913kB/s), 214KiB/s-242KiB/s (219kB/s-247kB/s), io=24.6MiB (25.8MB), run=27095-28260msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144396: Mon Sep 7 23:18:50 2026 read: IOPS=5, BW=93.1KiB/s (95.3kB/s)(5920KiB/63616msec) clat (msec): min=6, max=288, avg=37.67, stdev=40.98 lat (msec): min=6, max=288, avg=37.67, stdev=40.98 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 77], 95.00th=[ 125], | 99.00th=[ 220], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 414, per=27.04%, avg=100.85, stdev=67.05, samples=114 iops : min= 1, max= 25, avg= 5.55, stdev= 4.29, samples=114 write: IOPS=6, BW=100KiB/s (103kB/s)(6368KiB/63616msec); 0 zone resets clat (msec): min=39, max=407, avg=123.93, stdev=62.92 lat (msec): min=39, max=407, avg=123.93, stdev=62.92 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 95], 50.00th=[ 106], 60.00th=[ 117], | 70.00th=[ 136], 80.00th=[ 167], 90.00th=[ 203], 95.00th=[ 243], | 99.00th=[ 363], 99.50th=[ 405], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 223, per=26.21%, avg=102.74, stdev=46.67, samples=121 iops : min= 1, max= 13, avg= 5.66, stdev= 3.02, samples=121 lat (msec) : 10=1.95%, 20=19.01%, 50=19.27%, 100=28.26%, 250=28.91% lat (msec) : 500=2.60% cpu : usr=0.06%, sys=1.18%, ctx=1215, 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=144397: Mon Sep 7 23:18:50 2026 read: IOPS=5, BW=89.5KiB/s (91.7kB/s)(5744KiB/64148msec) clat (msec): min=5, max=335, avg=36.59, stdev=38.42 lat (msec): min=5, max=335, avg=36.59, stdev=38.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 45], 90.00th=[ 75], 95.00th=[ 115], | 99.00th=[ 199], 99.50th=[ 241], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 29, max= 319, per=27.87%, avg=103.96, stdev=66.59, samples=107 iops : min= 1, max= 19, avg= 5.77, stdev= 4.23, samples=107 write: IOPS=6, BW=102KiB/s (104kB/s)(6544KiB/64148msec); 0 zone resets clat (msec): min=27, max=442, avg=123.78, stdev=70.86 lat (msec): min=27, max=442, avg=123.78, stdev=70.86 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 50], 10.00th=[ 62], 20.00th=[ 74], | 30.00th=[ 83], 40.00th=[ 93], 50.00th=[ 106], 60.00th=[ 118], | 70.00th=[ 134], 80.00th=[ 161], 90.00th=[ 209], 95.00th=[ 288], | 99.00th=[ 380], 99.50th=[ 418], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 30, max= 256, per=26.69%, avg=104.63, stdev=50.85, samples=121 iops : min= 1, max= 16, avg= 5.79, stdev= 3.33, samples=121 lat (msec) : 10=3.12%, 20=14.84%, 50=23.18%, 100=26.69%, 250=27.86% lat (msec) : 500=4.30% cpu : usr=0.04%, sys=1.26%, ctx=1349, 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=144398: Mon Sep 7 23:18:50 2026 read: IOPS=6, BW=101KiB/s (103kB/s)(6256KiB/62159msec) clat (msec): min=5, max=334, avg=32.99, stdev=37.89 lat (msec): min=5, max=334, avg=32.99, stdev=37.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 62], 95.00th=[ 90], | 99.00th=[ 211], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 447, per=30.54%, avg=113.93, stdev=81.11, samples=108 iops : min= 1, max= 27, avg= 6.35, stdev= 5.11, samples=108 write: IOPS=6, BW=97.0KiB/s (99.4kB/s)(6032KiB/62159msec); 0 zone resets clat (msec): min=31, max=438, avg=129.85, stdev=70.48 lat (msec): min=31, max=438, avg=129.85, stdev=70.48 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 65], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 239], 95.00th=[ 296], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 29, max= 223, per=24.78%, avg=97.13, stdev=45.48, samples=120 iops : min= 1, max= 13, avg= 5.30, stdev= 2.95, samples=120 lat (msec) : 10=4.69%, 20=18.62%, 50=22.14%, 100=23.31%, 250=27.21% lat (msec) : 500=4.04% cpu : usr=0.03%, sys=1.21%, ctx=1204, 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=144400: Mon Sep 7 23:18:50 2026 read: IOPS=5, BW=95.5KiB/s (97.7kB/s)(6032KiB/63194msec) clat (msec): min=6, max=353, avg=35.89, stdev=41.34 lat (msec): min=6, max=353, avg=35.90, stdev=41.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 75], 95.00th=[ 111], | 99.00th=[ 255], 99.50th=[ 279], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 30, max= 320, per=28.71%, avg=107.08, stdev=68.47, samples=111 iops : min= 1, max= 20, avg= 5.94, stdev= 4.38, samples=111 write: IOPS=6, BW=98.0KiB/s (101kB/s)(6256KiB/63194msec); 0 zone resets clat (msec): min=36, max=507, avg=126.80, stdev=68.78 lat (msec): min=36, max=507, avg=126.80, stdev=68.78 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 161], 90.00th=[ 211], 95.00th=[ 271], | 99.00th=[ 380], 99.50th=[ 418], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 29, max= 224, per=25.65%, avg=100.54, stdev=47.92, samples=123 iops : min= 1, max= 14, avg= 5.52, stdev= 3.13, samples=123 lat (msec) : 10=3.26%, 20=17.97%, 50=20.44%, 100=26.17%, 250=28.52% lat (msec) : 500=3.52%, 750=0.13% cpu : usr=0.05%, sys=1.18%, ctx=1278, 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=373KiB/s (382kB/s), 89.5KiB/s-101KiB/s (91.7kB/s-103kB/s), io=23.4MiB (24.5MB), run=62159-64148msec WRITE: bw=393KiB/s (402kB/s), 97.0KiB/s-102KiB/s (99.4kB/s-104kB/s), io=24.6MiB (25.8MB), run=62159-64148msec 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=144423: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=1992KiB/s (2039kB/s)(7168KiB/3599msec) clat (usec): min=473, max=400290, avg=154064.02, stdev=139902.63 lat (usec): min=474, max=400291, avg=154065.63, stdev=139902.61 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 474], 10.00th=[ 474], 20.00th=[ 652], | 30.00th=[128451], 40.00th=[128451], 50.00th=[145753], 60.00th=[154141], | 70.00th=[154141], 80.00th=[248513], 90.00th=[400557], 95.00th=[400557], | 99.00th=[400557], 99.50th=[400557], 99.90th=[400557], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 4047, max= 5988, per=91.93%, avg=5017.50, stdev=1372.49, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1423KiB/s (1457kB/s)(5120KiB/3599msec); 0 zone resets clat (msec): min=113, max=743, avg=498.51, stdev=256.80 lat (msec): min=113, max=743, avg=498.60, stdev=256.77 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1872, max= 2035, per=25.68%, avg=1962.33, stdev=82.92, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=11.31%, ctx=136, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144424: Mon Sep 7 23:19:04 2026 read: IOPS=0, BW=554KiB/s (567kB/s)(2048KiB/3700msec) clat (msec): min=170, max=196, avg=183.25, stdev=18.62 lat (msec): min=170, max=196, avg=183.25, stdev=18.62 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 1961, max= 1980, per=36.10%, avg=1970.50, stdev=13.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2768KiB/s (2834kB/s)(10.0MiB/3700msec); 0 zone resets clat (msec): min=73, max=557, avg=333.03, stdev=142.15 lat (msec): min=73, max=557, avg=333.12, stdev=142.15 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 228], | 30.00th=[ 239], 40.00th=[ 262], 50.00th=[ 321], 60.00th=[ 368], | 70.00th=[ 384], 80.00th=[ 388], 90.00th=[ 514], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2003, max= 5616, per=46.28%, avg=3536.40, stdev=1533.65, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.05%, sys=12.17%, 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=144425: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=1638KiB/s (1677kB/s)(6144KiB/3752msec) clat (usec): min=1922, max=418571, avg=246539.50, stdev=155727.54 lat (usec): min=1923, max=418572, avg=246540.83, stdev=155727.50 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 1926], 10.00th=[ 1926], 20.00th=[120062], | 30.00th=[120062], 40.00th=[283116], 50.00th=[283116], 60.00th=[308282], | 70.00th=[350225], 80.00th=[350225], 90.00th=[417334], 95.00th=[417334], | 99.00th=[417334], 99.50th=[417334], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 2031, max= 4047, per=61.59%, avg=3361.67, stdev=1152.56, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1638KiB/s (1677kB/s)(6144KiB/3752msec); 0 zone resets clat (msec): min=168, max=576, avg=378.22, stdev=137.72 lat (msec): min=169, max=576, avg=378.29, stdev=137.71 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 393], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1896, max= 3744, per=30.59%, avg=2337.20, stdev=788.42, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 250=16.67%, 500=66.67%, 750=8.33% cpu : usr=0.00%, sys=11.78%, ctx=168, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144426: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=1564KiB/s (1601kB/s)(5120KiB/3274msec) clat (usec): min=514, max=232294, avg=90343.79, stdev=121645.26 lat (usec): min=515, max=232295, avg=90344.86, stdev=121645.07 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 1991], 40.00th=[ 1991], 50.00th=[ 2376], 60.00th=[ 2376], | 70.00th=[214959], 80.00th=[214959], 90.00th=[231736], 95.00th=[231736], | 99.00th=[231736], 99.50th=[231736], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 1980, max= 6011, per=73.20%, avg=3995.50, stdev=2850.35, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2189KiB/s (2242kB/s)(7168KiB/3274msec); 0 zone resets clat (msec): min=233, max=573, avg=402.88, stdev=121.15 lat (msec): min=233, max=573, avg=402.96, stdev=121.16 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 279], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 405], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1872, max= 2035, per=25.83%, avg=1973.50, stdev=62.48, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=10.85%, ctx=122, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5458KiB/s (5589kB/s), 554KiB/s-1992KiB/s (567kB/s-2039kB/s), io=20.0MiB (20.0MB), run=3274-3752msec WRITE: bw=7642KiB/s (7825kB/s), 1423KiB/s-2768KiB/s (1457kB/s-2834kB/s), io=28.0MiB (29.4MB), run=3274-3752msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144418: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=2009KiB/s (2057kB/s)(7168KiB/3568msec) clat (msec): min=68, max=348, avg=170.85, stdev=104.43 lat (msec): min=68, max=348, avg=170.85, stdev=104.43 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 77], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 150], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 275], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1906, max= 6710, per=99.40%, avg=4308.00, stdev=3396.94, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1435KiB/s (1469kB/s)(5120KiB/3568msec); 0 zone resets clat (msec): min=139, max=916, avg=467.27, stdev=305.26 lat (msec): min=140, max=917, avg=467.65, stdev=304.93 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1342, max= 4063, per=38.40%, avg=2330.00, stdev=1192.27, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.36%, ctx=59, 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=144419: Mon Sep 7 23:19:04 2026 read: IOPS=0, BW=433KiB/s (444kB/s)(2048KiB/4725msec) clat (msec): min=134, max=687, avg=411.06, stdev=390.57 lat (msec): min=134, max=687, avg=411.06, stdev=390.57 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1349, max= 1906, per=37.55%, avg=1627.50, stdev=393.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2167KiB/s (2219kB/s)(10.0MiB/4725msec); 0 zone resets clat (msec): min=153, max=901, avg=388.05, stdev=229.68 lat (msec): min=153, max=901, avg=388.16, stdev=229.68 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 182], | 30.00th=[ 247], 40.00th=[ 255], 50.00th=[ 317], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 527], 90.00th=[ 609], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1896, max= 4096, per=40.15%, avg=2436.33, stdev=866.69, samples=6 iops : min= 1, max= 4, avg= 1.67, stdev= 1.21, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.04%, sys=3.90%, ctx=69, 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=144420: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=1694KiB/s (1735kB/s)(6144KiB/3627msec) clat (msec): min=88, max=643, avg=351.47, stdev=249.16 lat (msec): min=88, max=643, avg=351.47, stdev=249.16 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 234], 50.00th=[ 234], 60.00th=[ 388], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1928, max= 4087, per=76.78%, avg=3327.67, stdev=1213.61, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1694KiB/s (1735kB/s)(6144KiB/3627msec); 0 zone resets clat (msec): min=131, max=476, avg=247.86, stdev=123.14 lat (msec): min=131, max=476, avg=248.12, stdev=123.19 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 232], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1928, max= 3923, per=38.93%, avg=2362.20, stdev=873.16, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=1.90%, ctx=48, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144421: Mon Sep 7 23:19:04 2026 read: IOPS=1, BW=1100KiB/s (1127kB/s)(5120KiB/4653msec) clat (msec): min=79, max=472, avg=251.42, stdev=153.44 lat (msec): min=79, max=472, avg=251.43, stdev=153.44 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1906, max= 3792, per=59.44%, avg=2576.33, stdev=1054.65, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1541KiB/s (1577kB/s)(7168KiB/4653msec); 0 zone resets clat (msec): min=121, max=1080, avg=483.01, stdev=323.46 lat (msec): min=121, max=1080, avg=483.41, stdev=323.44 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 249], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 472], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 667], 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= 1932, max= 2719, per=35.25%, avg=2139.00, stdev=327.67, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=2.69%, ctx=48, 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=4334KiB/s (4438kB/s), 433KiB/s-2009KiB/s (444kB/s-2057kB/s), io=20.0MiB (20.0MB), run=3568-4725msec WRITE: bw=6068KiB/s (6214kB/s), 1435KiB/s-2167KiB/s (1469kB/s-2219kB/s), io=28.0MiB (29.4MB), run=3568-4725msec 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=144438: Mon Sep 7 23:19:19 2026 read: IOPS=1, BW=5324KiB/s (5452kB/s)(12.0MiB/2308msec) clat (msec): min=641, max=779, avg=724.46, stdev=72.93 lat (msec): min=641, max=779, avg=724.46, stdev=72.93 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7831, max= 7953, per=100.00%, avg=7892.00, stdev=86.27, 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=0.04%, sys=5.98%, ctx=85, 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=144440: Mon Sep 7 23:19:19 2026 read: IOPS=0, BW=1591KiB/s (1629kB/s)(4096KiB/2575msec) clat (nsec): min=285760k, max=285760k, avg=285759763.00, stdev= 0.00 lat (nsec): min=285763k, max=285763k, avg=285762693.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 6501, max= 6501, per=100.00%, avg=6501.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3181KiB/s (3258kB/s)(8192KiB/2575msec); 0 zone resets clat (msec): min=971, max=1196, avg=1083.96, stdev=158.90 lat (msec): min=973, max=1196, avg=1085.00, stdev=157.88 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8078, max= 8078, per=91.86%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.09%, ctx=54, 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=144441: Mon Sep 7 23:19:19 2026 write: IOPS=0, BW=3298KiB/s (3377kB/s)(12.0MiB/3726msec); 0 zone resets clat (msec): min=282, max=2024, avg=1205.65, stdev=875.93 lat (msec): min=282, max=2025, avg=1206.08, stdev=875.93 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 8143, max= 8175, per=92.78%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.87%, ctx=49, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144442: Mon Sep 7 23:19:19 2026 write: IOPS=0, BW=3692KiB/s (3781kB/s)(12.0MiB/3328msec); 0 zone resets clat (msec): min=323, max=2017, avg=1087.47, stdev=859.40 lat (msec): min=323, max=2018, avg=1087.90, stdev=859.46 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 8000, max= 8094, per=91.51%, avg=8047.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.12%, sys=3.40%, ctx=44, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6363KiB/s (6515kB/s), 1591KiB/s-5324KiB/s (1629kB/s-5452kB/s), io=16.0MiB (16.8MB), run=2308-2575msec WRITE: bw=8794KiB/s (9005kB/s), 3181KiB/s-3692KiB/s (3258kB/s-3781kB/s), io=32.0MiB (33.6MB), run=2575-3726msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144435: Mon Sep 7 23:19:19 2026 read: IOPS=1, BW=5437KiB/s (5568kB/s)(12.0MiB/2260msec) clat (msec): min=695, max=723, avg=707.01, stdev=14.24 lat (msec): min=695, max=723, avg=707.01, stdev=14.24 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8062, max= 8143, per=100.00%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.09%, sys=14.03%, ctx=387, 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=144436: Mon Sep 7 23:19:19 2026 read: IOPS=0, BW=1437KiB/s (1472kB/s)(4096KiB/2850msec) clat (nsec): min=729566k, max=729566k, avg=729565664.00, stdev= 0.00 lat (nsec): min=729569k, max=729569k, avg=729568640.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2874KiB/s (2943kB/s)(8192KiB/2850msec); 0 zone resets clat (msec): min=850, max=1096, avg=973.75, stdev=174.01 lat (msec): min=851, max=1097, avg=974.23, stdev=173.98 clat percentiles (msec): | 1.00th=[ 852], 5.00th=[ 852], 10.00th=[ 852], 20.00th=[ 852], | 30.00th=[ 852], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8143, max= 8143, per=98.31%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.07%, sys=8.70%, ctx=274, 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=144437: Mon Sep 7 23:19:19 2026 write: IOPS=0, BW=3106KiB/s (3181kB/s)(12.0MiB/3956msec); 0 zone resets clat (msec): min=278, max=2546, avg=1293.04, stdev=1152.87 lat (msec): min=280, max=2547, avg=1293.86, stdev=1152.32 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1053], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 8126, max= 8159, per=98.30%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.63%, ctx=42, 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=144439: Mon Sep 7 23:19:19 2026 write: IOPS=0, BW=3884KiB/s (3977kB/s)(12.0MiB/3164msec); 0 zone resets clat (msec): min=533, max=1558, avg=965.60, stdev=531.31 lat (msec): min=534, max=1559, avg=965.97, stdev=531.16 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7772, max= 8062, per=95.58%, avg=7917.00, stdev=205.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.93%, ctx=64, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5749KiB/s (5887kB/s), 1437KiB/s-5437KiB/s (1472kB/s-5568kB/s), io=16.0MiB (16.8MB), run=2260-2850msec WRITE: bw=8283KiB/s (8482kB/s), 2874KiB/s-3884KiB/s (2943kB/s-3977kB/s), io=32.0MiB (33.6MB), run=2850-3956msec