== sanity test 398b: DIO and buffer IO race ============== 16:29:12 (1781209752) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.04248 s, 16.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=153544: Thu Jun 11 16:30:27 2026 read: IOPS=22, BW=91.5KiB/s (93.7kB/s)(5992KiB/65491msec) clat (usec): min=36, max=704108, avg=22038.58, stdev=22730.04 lat (usec): min=36, max=704109, avg=22039.83, stdev=22730.08 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 126], 10.00th=[ 8848], 20.00th=[ 11731], | 30.00th=[ 13960], 40.00th=[ 15926], 50.00th=[ 19006], 60.00th=[ 22414], | 70.00th=[ 25822], 80.00th=[ 30016], 90.00th=[ 38011], 95.00th=[ 46400], | 99.00th=[ 76022], 99.50th=[ 94897], 99.90th=[145753], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 13, max= 159, per=24.87%, avg=91.04, stdev=28.78, samples=130 iops : min= 3, max= 39, avg=22.25, stdev= 7.24, samples=130 write: IOPS=24, BW=96.1KiB/s (98.4kB/s)(6296KiB/65491msec); 0 zone resets clat (usec): min=823, max=241454, avg=20486.53, stdev=19824.59 lat (usec): min=824, max=241456, avg=20490.52, stdev=19823.67 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 2024], 10.00th=[ 2835], 20.00th=[ 4424], | 30.00th=[ 7242], 40.00th=[ 11863], 50.00th=[ 16057], 60.00th=[ 20579], | 70.00th=[ 26084], 80.00th=[ 32375], 90.00th=[ 42730], 95.00th=[ 54789], | 99.00th=[ 84411], 99.50th=[109577], 99.90th=[189793], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 39, max= 159, per=25.15%, avg=96.34, stdev=26.06, samples=129 iops : min= 9, max= 39, avg=23.58, stdev= 6.58, samples=129 lat (usec) : 50=0.16%, 100=1.63%, 250=1.30%, 500=0.26%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=2.44%, 4=6.97%, 10=11.82%, 20=30.83%, 50=39.49% lat (msec) : 100=4.36%, 250=0.55%, 750=0.03% cpu : usr=0.12%, sys=16.98%, ctx=8311, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153545: Thu Jun 11 16:30:27 2026 read: IOPS=22, BW=90.9KiB/s (93.1kB/s)(5940KiB/65367msec) clat (usec): min=34, max=156869, avg=22297.16, stdev=15395.80 lat (usec): min=35, max=156871, avg=22298.69, stdev=15395.78 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 172], 10.00th=[ 9110], 20.00th=[ 11994], | 30.00th=[ 14091], 40.00th=[ 16188], 50.00th=[ 18744], 60.00th=[ 22152], | 70.00th=[ 25822], 80.00th=[ 31065], 90.00th=[ 40109], 95.00th=[ 48497], | 99.00th=[ 80217], 99.50th=[ 92799], 99.90th=[141558], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 6, max= 159, per=24.68%, avg=90.32, stdev=26.69, samples=129 iops : min= 1, max= 39, avg=22.08, stdev= 6.72, samples=129 write: IOPS=24, BW=97.1KiB/s (99.4kB/s)(6348KiB/65367msec); 0 zone resets clat (usec): min=920, max=711436, avg=20176.00, stdev=24629.94 lat (usec): min=921, max=711437, avg=20178.27, stdev=24630.53 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1827], 10.00th=[ 2704], 20.00th=[ 4146], | 30.00th=[ 6718], 40.00th=[ 11863], 50.00th=[ 16057], 60.00th=[ 20317], | 70.00th=[ 25297], 80.00th=[ 32375], 90.00th=[ 41157], 95.00th=[ 51643], | 99.00th=[ 85459], 99.50th=[ 95945], 99.90th=[131597], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 31, max= 230, per=25.32%, avg=96.99, stdev=30.83, samples=128 iops : min= 7, max= 57, avg=23.74, stdev= 7.77, samples=128 lat (usec) : 50=0.20%, 100=1.33%, 250=1.24%, 500=0.07%, 1000=0.07% lat (msec) : 2=3.16%, 4=6.71%, 10=11.69%, 20=32.26%, 50=38.25% lat (msec) : 100=4.62%, 250=0.39%, 750=0.03% cpu : usr=0.14%, sys=17.08%, ctx=8409, 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=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=153546: Thu Jun 11 16:30:27 2026 read: IOPS=23, BW=92.2KiB/s (94.5kB/s)(6028KiB/65350msec) clat (usec): min=31, max=223585, avg=21441.56, stdev=14690.50 lat (usec): min=31, max=223586, avg=21443.68, stdev=14690.46 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 124], 10.00th=[ 8979], 20.00th=[ 11994], | 30.00th=[ 14091], 40.00th=[ 16188], 50.00th=[ 18482], 60.00th=[ 21627], | 70.00th=[ 25297], 80.00th=[ 30016], 90.00th=[ 38011], 95.00th=[ 44827], | 99.00th=[ 68682], 99.50th=[ 84411], 99.90th=[152044], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 13, max= 182, per=25.10%, avg=91.86, stdev=28.30, samples=129 iops : min= 3, max= 45, avg=22.47, stdev= 7.13, samples=129 write: IOPS=23, BW=95.8KiB/s (98.1kB/s)(6260KiB/65350msec); 0 zone resets clat (usec): min=837, max=678375, avg=20954.57, stdev=25167.70 lat (usec): min=837, max=678377, avg=20957.10, stdev=25168.28 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1958], 10.00th=[ 2638], 20.00th=[ 4293], | 30.00th=[ 7439], 40.00th=[ 12387], 50.00th=[ 16581], 60.00th=[ 20841], | 70.00th=[ 26608], 80.00th=[ 33162], 90.00th=[ 42206], 95.00th=[ 52691], | 99.00th=[ 92799], 99.50th=[119014], 99.90th=[164627], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 20, max= 159, per=24.82%, avg=95.06, stdev=30.92, samples=129 iops : min= 5, max= 39, avg=23.27, stdev= 7.73, samples=129 lat (usec) : 50=0.23%, 100=1.89%, 250=1.17%, 500=0.16%, 1000=0.10% lat (msec) : 2=2.77%, 4=6.67%, 10=10.68%, 20=33.20%, 50=38.28% lat (msec) : 100=4.30%, 250=0.52%, 750=0.03% cpu : usr=0.13%, sys=16.70%, ctx=8261, 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=153547: Thu Jun 11 16:30:27 2026 read: IOPS=23, BW=92.7KiB/s (94.9kB/s)(6052KiB/65313msec) clat (usec): min=37, max=688641, avg=22024.09, stdev=22118.92 lat (usec): min=37, max=688642, avg=22025.25, stdev=22118.90 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 130], 10.00th=[ 8717], 20.00th=[ 11731], | 30.00th=[ 13960], 40.00th=[ 16319], 50.00th=[ 19006], 60.00th=[ 22152], | 70.00th=[ 25560], 80.00th=[ 30278], 90.00th=[ 38536], 95.00th=[ 46400], | 99.00th=[ 68682], 99.50th=[ 85459], 99.90th=[139461], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 6, max= 160, per=25.37%, avg=92.84, stdev=28.71, samples=128 iops : min= 1, max= 40, avg=22.70, stdev= 7.26, samples=128 write: IOPS=23, BW=95.5KiB/s (97.8kB/s)(6236KiB/65313msec); 0 zone resets clat (usec): min=981, max=249989, avg=20367.44, stdev=19388.46 lat (usec): min=982, max=249990, avg=20369.75, stdev=19389.19 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1909], 10.00th=[ 2671], 20.00th=[ 4228], | 30.00th=[ 6587], 40.00th=[ 11469], 50.00th=[ 15926], 60.00th=[ 20841], | 70.00th=[ 26084], 80.00th=[ 32900], 90.00th=[ 44303], 95.00th=[ 54264], | 99.00th=[ 80217], 99.50th=[103285], 99.90th=[175113], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 27, max= 174, per=24.82%, avg=95.05, stdev=29.26, samples=129 iops : min= 6, max= 43, avg=23.26, stdev= 7.39, samples=129 lat (usec) : 50=0.13%, 100=1.53%, 250=1.56%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=2.70%, 4=6.80%, 10=12.57%, 20=30.24%, 50=39.19% lat (msec) : 100=4.65%, 250=0.36%, 750=0.03% cpu : usr=0.11%, sys=17.04%, ctx=8324, 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=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=367KiB/s (375kB/s), 90.9KiB/s-92.7KiB/s (93.1kB/s-94.9kB/s), io=23.4MiB (24.6MB), run=65313-65491msec WRITE: bw=384KiB/s (393kB/s), 95.5KiB/s-97.1KiB/s (97.8kB/s-99.4kB/s), io=24.6MiB (25.7MB), run=65313-65491msec fio: pid=153541, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=153540: Thu Jun 11 16:31:22 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(5992KiB/120643msec) clat (msec): min=4, max=720, avg=20.47, stdev=24.49 lat (msec): min=4, max=720, avg=20.47, stdev=24.49 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 38], 95.00th=[ 51], | 99.00th=[ 92], 99.50th=[ 111], 99.90th=[ 169], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 152, per=29.37%, avg=49.93, stdev=29.49, samples=237 iops : min= 1, max= 38, avg=12.03, stdev= 7.42, samples=237 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(6296KiB/120643msec); 0 zone resets clat (msec): min=18, max=252, avg=56.99, stdev=28.43 lat (msec): min=18, max=252, avg=56.99, stdev=28.43 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 56], | 70.00th=[ 65], 80.00th=[ 75], 90.00th=[ 92], 95.00th=[ 113], | 99.00th=[ 153], 99.50th=[ 174], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 7, max= 135, per=29.20%, avg=51.98, stdev=22.88, samples=239 iops : min= 1, max= 33, avg=12.54, stdev= 5.84, samples=239 lat (msec) : 10=11.17%, 20=21.94%, 50=39.19%, 100=23.34%, 250=4.26% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.10%, sys=4.84%, ctx=6380, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=153541: Thu Jun 11 16:31:22 2026 read: IOPS=8, BW=35.5KiB/s (36.3kB/s)(2540KiB/71634msec) clat (msec): min=5, max=699, avg=29.73, stdev=35.25 lat (msec): min=5, max=699, avg=29.73, stdev=35.25 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 55], 95.00th=[ 71], | 99.00th=[ 117], 99.50th=[ 153], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 95, per=21.58%, avg=36.68, stdev=19.93, samples=135 iops : min= 1, max= 23, avg= 8.64, stdev= 5.02, samples=135 write: IOPS=9, BW=38.6KiB/s (39.6kB/s)(2768KiB/71634msec); 0 zone resets clat (msec): min=28, max=248, avg=75.91, stdev=30.34 lat (msec): min=28, max=248, avg=75.91, stdev=30.34 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 41], 10.00th=[ 46], 20.00th=[ 52], | 30.00th=[ 58], 40.00th=[ 64], 50.00th=[ 70], 60.00th=[ 78], | 70.00th=[ 87], 80.00th=[ 97], 90.00th=[ 111], 95.00th=[ 134], | 99.00th=[ 184], 99.50th=[ 192], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 7, max= 79, per=21.59%, avg=38.43, stdev=12.87, samples=141 iops : min= 1, max= 19, avg= 9.06, stdev= 3.25, samples=141 lat (msec) : 10=3.54%, 20=17.92%, 50=29.59%, 100=39.31%, 250=9.49% lat (msec) : 750=0.08% cpu : usr=0.05%, sys=4.71%, ctx=2159, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=636,692,0,0 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=153542: Thu Jun 11 16:31:22 2026 read: IOPS=12, BW=50.5KiB/s (51.7kB/s)(6028KiB/119471msec) clat (msec): min=3, max=241, avg=20.27, stdev=17.33 lat (msec): min=3, max=241, avg=20.28, stdev=17.33 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 22], 80.00th=[ 27], 90.00th=[ 36], 95.00th=[ 50], | 99.00th=[ 92], 99.50th=[ 109], 99.90th=[ 222], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 7, max= 128, per=29.94%, avg=50.91, stdev=27.13, samples=233 iops : min= 1, max= 32, avg=12.28, stdev= 6.87, samples=233 write: IOPS=13, BW=52.4KiB/s (53.7kB/s)(6260KiB/119471msec); 0 zone resets clat (msec): min=17, max=808, avg=56.65, stdev=33.69 lat (msec): min=17, max=808, avg=56.65, stdev=33.69 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 55], | 70.00th=[ 64], 80.00th=[ 74], 90.00th=[ 93], 95.00th=[ 111], | 99.00th=[ 161], 99.50th=[ 178], 99.90th=[ 255], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 15, max= 127, per=29.27%, avg=52.11, stdev=22.55, samples=236 iops : min= 3, max= 31, avg=12.58, stdev= 5.74, samples=236 lat (msec) : 4=0.03%, 10=9.67%, 20=23.50%, 50=39.68%, 100=23.24% lat (msec) : 250=3.81%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.84%, ctx=6340, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153543: Thu Jun 11 16:31:22 2026 read: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6052KiB/119147msec) clat (msec): min=4, max=141, avg=19.86, stdev=15.48 lat (msec): min=4, max=141, avg=19.87, stdev=15.48 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 51], | 99.00th=[ 80], 99.50th=[ 95], 99.90th=[ 136], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 7, max= 144, per=30.44%, avg=51.75, stdev=27.58, samples=231 iops : min= 1, max= 36, avg=12.48, stdev= 6.98, samples=231 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(6236KiB/119147msec); 0 zone resets clat (msec): min=18, max=742, avg=56.98, stdev=32.89 lat (msec): min=18, max=742, avg=56.98, stdev=32.89 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 27], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 56], | 70.00th=[ 64], 80.00th=[ 75], 90.00th=[ 92], 95.00th=[ 110], | 99.00th=[ 153], 99.50th=[ 188], 99.90th=[ 253], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 15, max= 119, per=29.31%, avg=52.18, stdev=21.93, samples=236 iops : min= 3, max= 29, avg=12.59, stdev= 5.60, samples=236 lat (msec) : 10=10.74%, 20=23.76%, 50=37.79%, 100=23.89%, 250=3.74% lat (msec) : 500=0.03%, 750=0.03% cpu : usr=0.08%, sys=4.85%, ctx=6320, 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=171KiB/s (175kB/s), 35.5KiB/s-50.8KiB/s (36.3kB/s-52.0kB/s), io=20.1MiB (21.1MB), run=71634-120643msec WRITE: bw=179KiB/s (183kB/s), 38.6KiB/s-52.4KiB/s (39.6kB/s-53.7kB/s), io=21.1MiB (22.1MB), run=71634-120643msec 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=153580: Thu Jun 11 16:31:44 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(5920KiB/16444msec) clat (usec): min=38, max=188675, avg=23225.22, stdev=19871.27 lat (usec): min=38, max=188676, avg=23226.30, stdev=19871.29 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 65], 10.00th=[ 104], 20.00th=[ 11338], | 30.00th=[ 15664], 40.00th=[ 17957], 50.00th=[ 21103], 60.00th=[ 23725], | 70.00th=[ 28181], 80.00th=[ 32113], 90.00th=[ 40633], 95.00th=[ 53216], | 99.00th=[109577], 99.50th=[123208], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 160, max= 574, per=24.26%, avg=353.25, stdev=97.42, samples=32 iops : min= 10, max= 35, avg=21.50, stdev= 6.08, samples=32 write: IOPS=24, BW=387KiB/s (397kB/s)(6368KiB/16444msec); 0 zone resets clat (usec): min=1409, max=173374, avg=19544.43, stdev=17785.23 lat (usec): min=1411, max=173375, avg=19568.55, stdev=17826.30 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2540], 10.00th=[ 3621], 20.00th=[ 5211], | 30.00th=[ 6783], 40.00th=[ 9372], 50.00th=[ 13960], 60.00th=[ 19268], | 70.00th=[ 26608], 80.00th=[ 32900], 90.00th=[ 42206], 95.00th=[ 52691], | 99.00th=[ 67634], 99.50th=[ 82314], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 189, max= 670, per=25.02%, avg=383.25, stdev=113.20, samples=32 iops : min= 11, max= 41, avg=23.38, stdev= 7.05, samples=32 lat (usec) : 50=0.52%, 100=4.04%, 250=2.99%, 500=0.26% lat (msec) : 2=1.43%, 4=5.60%, 10=16.02%, 20=23.31%, 50=39.45% lat (msec) : 100=5.73%, 250=0.65% cpu : usr=0.10%, sys=18.62%, ctx=1971, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153581: Thu Jun 11 16:31:44 2026 read: IOPS=22, BW=356KiB/s (364kB/s)(5744KiB/16146msec) clat (usec): min=50, max=130804, avg=23643.80, stdev=16532.60 lat (usec): min=51, max=130806, avg=23644.87, stdev=16532.61 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 82], 10.00th=[ 126], 20.00th=[ 11600], | 30.00th=[ 16450], 40.00th=[ 20055], 50.00th=[ 23200], 60.00th=[ 25822], | 70.00th=[ 29754], 80.00th=[ 34341], 90.00th=[ 41157], 95.00th=[ 51643], | 99.00th=[ 73925], 99.50th=[ 89654], 99.90th=[130548], 99.95th=[130548], | 99.99th=[130548] bw ( KiB/s): min= 190, max= 541, per=24.46%, avg=356.16, stdev=98.31, samples=31 iops : min= 11, max= 33, avg=21.68, stdev= 6.11, samples=31 write: IOPS=25, BW=405KiB/s (415kB/s)(6544KiB/16146msec); 0 zone resets clat (usec): min=1362, max=250296, avg=18443.97, stdev=19299.60 lat (usec): min=1363, max=250297, avg=18446.32, stdev=19299.51 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2474], 10.00th=[ 3621], 20.00th=[ 5211], | 30.00th=[ 6783], 40.00th=[ 8979], 50.00th=[ 13304], 60.00th=[ 17695], | 70.00th=[ 23200], 80.00th=[ 29754], 90.00th=[ 37487], 95.00th=[ 50070], | 99.00th=[ 69731], 99.50th=[ 78119], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 191, max= 702, per=26.07%, avg=399.42, stdev=111.50, samples=31 iops : min= 11, max= 43, avg=24.39, stdev= 7.00, samples=31 lat (usec) : 100=3.12%, 250=3.39%, 500=0.52%, 750=0.65% lat (msec) : 2=1.43%, 4=4.95%, 10=17.58%, 20=21.09%, 50=41.93% lat (msec) : 100=4.95%, 250=0.26%, 500=0.13% cpu : usr=0.14%, sys=19.02%, ctx=2023, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153582: Thu Jun 11 16:31:44 2026 read: IOPS=23, BW=382KiB/s (391kB/s)(6256KiB/16393msec) clat (usec): min=40, max=95548, avg=22502.23, stdev=17323.21 lat (usec): min=40, max=95549, avg=22503.55, stdev=17323.30 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 86], 20.00th=[ 306], | 30.00th=[14615], 40.00th=[18220], 50.00th=[22152], 60.00th=[24511], | 70.00th=[28967], 80.00th=[35390], 90.00th=[43254], 95.00th=[51643], | 99.00th=[78119], 99.50th=[94897], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 159, max= 638, per=26.43%, avg=384.78, stdev=107.74, samples=32 iops : min= 9, max= 39, avg=23.47, stdev= 6.83, samples=32 write: IOPS=22, BW=368KiB/s (377kB/s)(6032KiB/16393msec); 0 zone resets clat (usec): min=1697, max=119206, avg=19782.66, stdev=18497.63 lat (usec): min=1699, max=119207, avg=19795.83, stdev=18499.47 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2900], 10.00th=[ 3589], 20.00th=[ 5014], | 30.00th=[ 6915], 40.00th=[ 10028], 50.00th=[ 14091], 60.00th=[ 17433], | 70.00th=[ 23725], 80.00th=[ 32637], 90.00th=[ 45351], 95.00th=[ 56361], | 99.00th=[ 87557], 99.50th=[110625], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 158, max= 670, per=23.80%, avg=364.56, stdev=116.33, samples=32 iops : min= 9, max= 41, avg=22.19, stdev= 7.22, samples=32 lat (usec) : 50=0.52%, 100=5.47%, 250=4.04%, 500=0.52%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=0.91%, 4=5.99%, 10=13.41%, 20=23.31%, 50=38.80% lat (msec) : 100=6.51%, 250=0.26% cpu : usr=0.13%, sys=18.16%, ctx=2079, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153583: Thu Jun 11 16:31:44 2026 read: IOPS=23, BW=376KiB/s (385kB/s)(6032KiB/16043msec) clat (usec): min=39, max=111202, avg=20982.87, stdev=15715.58 lat (usec): min=40, max=111203, avg=20984.08, stdev=15715.39 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 103], 20.00th=[ 3589], | 30.00th=[ 14746], 40.00th=[ 17171], 50.00th=[ 19792], 60.00th=[ 22938], | 70.00th=[ 27395], 80.00th=[ 31851], 90.00th=[ 39584], 95.00th=[ 46924], | 99.00th=[ 64750], 99.50th=[104334], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 160, max= 606, per=25.73%, avg=374.61, stdev=115.71, samples=31 iops : min= 10, max= 37, avg=22.84, stdev= 7.20, samples=31 write: IOPS=24, BW=390KiB/s (399kB/s)(6256KiB/16043msec); 0 zone resets clat (usec): min=1626, max=153218, avg=20575.53, stdev=19524.78 lat (usec): min=1628, max=153221, avg=20578.30, stdev=19524.97 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2507], 10.00th=[ 3458], 20.00th=[ 5145], | 30.00th=[ 7177], 40.00th=[ 10552], 50.00th=[ 14615], 60.00th=[ 20055], | 70.00th=[ 25035], 80.00th=[ 32900], 90.00th=[ 45876], 95.00th=[ 53740], | 99.00th=[ 88605], 99.50th=[121111], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 160, max= 670, per=25.44%, avg=389.68, stdev=96.24, samples=31 iops : min= 10, max= 41, avg=23.77, stdev= 5.95, samples=31 lat (usec) : 50=0.13%, 100=4.43%, 250=4.04%, 500=0.91% lat (msec) : 2=0.78%, 4=6.25%, 10=14.06%, 20=25.00%, 50=39.45% lat (msec) : 100=4.30%, 250=0.65% cpu : usr=0.10%, sys=18.84%, ctx=2000, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1457KiB/s (1492kB/s), 356KiB/s-382KiB/s (364kB/s-391kB/s), io=23.4MiB (24.5MB), run=16043-16444msec WRITE: bw=1532KiB/s (1569kB/s), 368KiB/s-405KiB/s (377kB/s-415kB/s), io=24.6MiB (25.8MB), run=16043-16444msec fio: pid=153588, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=153585: Thu Jun 11 16:32:01 2026 read: IOPS=11, BW=176KiB/s (180kB/s)(5920KiB/33593msec) clat (msec): min=5, max=124, avg=21.98, stdev=21.20 lat (msec): min=5, max=124, avg=21.98, stdev=21.20 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 33], 90.00th=[ 55], 95.00th=[ 72], | 99.00th=[ 103], 99.50th=[ 121], 99.90th=[ 125], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 31, max= 510, per=26.20%, avg=174.50, stdev=91.56, samples=66 iops : min= 1, max= 31, avg=10.17, stdev= 5.76, samples=66 write: IOPS=11, BW=190KiB/s (194kB/s)(6368KiB/33593msec); 0 zone resets clat (msec): min=27, max=332, avg=63.70, stdev=31.67 lat (msec): min=27, max=332, avg=63.70, stdev=31.67 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 33], 10.00th=[ 36], 20.00th=[ 40], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 57], 60.00th=[ 63], | 70.00th=[ 70], 80.00th=[ 83], 90.00th=[ 102], 95.00th=[ 120], | 99.00th=[ 176], 99.50th=[ 188], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 53, max= 382, per=26.67%, avg=188.85, stdev=87.64, samples=66 iops : min= 3, max= 23, avg=11.06, stdev= 5.55, samples=66 lat (msec) : 10=16.54%, 20=17.71%, 50=28.91%, 100=30.73%, 250=5.99% lat (msec) : 500=0.13% cpu : usr=0.10%, sys=4.30%, ctx=1560, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153586: Thu Jun 11 16:32:01 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33250msec) clat (msec): min=4, max=137, avg=20.21, stdev=21.51 lat (msec): min=4, max=137, avg=20.21, stdev=21.51 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 27], 90.00th=[ 47], 95.00th=[ 72], | 99.00th=[ 101], 99.50th=[ 136], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 26, max= 445, per=26.24%, avg=174.77, stdev=108.52, samples=64 iops : min= 1, max= 27, avg=10.17, stdev= 6.75, samples=64 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33250msec); 0 zone resets clat (msec): min=22, max=263, avg=63.14, stdev=31.90 lat (msec): min=22, max=263, avg=63.15, stdev=31.91 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 32], 10.00th=[ 34], 20.00th=[ 40], | 30.00th=[ 44], 40.00th=[ 48], 50.00th=[ 54], 60.00th=[ 62], | 70.00th=[ 71], 80.00th=[ 83], 90.00th=[ 104], 95.00th=[ 127], | 99.00th=[ 171], 99.50th=[ 186], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 63, max= 350, per=27.74%, avg=196.42, stdev=85.40, samples=65 iops : min= 3, max= 21, avg=11.54, stdev= 5.42, samples=65 lat (msec) : 10=18.62%, 20=16.93%, 50=30.86%, 100=27.08%, 250=6.25% lat (msec) : 500=0.26% cpu : usr=0.12%, sys=4.44%, ctx=1577, 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=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=153587: Thu Jun 11 16:32:01 2026 read: IOPS=12, BW=198KiB/s (202kB/s)(6256KiB/31641msec) clat (msec): min=5, max=207, avg=19.86, stdev=20.11 lat (msec): min=5, max=207, avg=19.87, stdev=20.11 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 26], 90.00th=[ 43], 95.00th=[ 59], | 99.00th=[ 103], 99.50th=[ 124], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 512, per=29.96%, avg=199.52, stdev=124.81, samples=62 iops : min= 1, max= 32, avg=11.74, stdev= 7.89, samples=62 write: IOPS=11, BW=191KiB/s (195kB/s)(6032KiB/31641msec); 0 zone resets clat (msec): min=21, max=251, avg=63.13, stdev=31.96 lat (msec): min=21, max=251, avg=63.14, stdev=31.96 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 31], 10.00th=[ 34], 20.00th=[ 40], | 30.00th=[ 45], 40.00th=[ 48], 50.00th=[ 54], 60.00th=[ 62], | 70.00th=[ 72], 80.00th=[ 83], 90.00th=[ 103], 95.00th=[ 128], | 99.00th=[ 188], 99.50th=[ 234], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 382, per=26.77%, avg=189.53, stdev=84.42, samples=62 iops : min= 1, max= 23, avg=11.11, stdev= 5.37, samples=62 lat (msec) : 10=17.06%, 20=20.31%, 50=30.99%, 100=26.17%, 250=5.34% lat (msec) : 500=0.13% cpu : usr=0.10%, sys=4.60%, ctx=1542, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=153588: Thu Jun 11 16:32:01 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(4480KiB/26923msec) clat (msec): min=5, max=196, avg=23.90, stdev=24.18 lat (msec): min=5, max=196, avg=23.91, stdev=24.18 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 35], 90.00th=[ 56], 95.00th=[ 71], | 99.00th=[ 126], 99.50th=[ 128], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 31, max= 448, per=25.49%, avg=169.73, stdev=98.20, samples=52 iops : min= 1, max= 28, avg= 9.87, stdev= 6.25, samples=52 write: IOPS=11, BW=180KiB/s (184kB/s)(4848KiB/26923msec); 0 zone resets clat (msec): min=24, max=203, avg=66.18, stdev=33.34 lat (msec): min=24, max=203, avg=66.19, stdev=33.34 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 32], 10.00th=[ 33], 20.00th=[ 40], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 56], 60.00th=[ 65], | 70.00th=[ 79], 80.00th=[ 90], 90.00th=[ 112], 95.00th=[ 132], | 99.00th=[ 169], 99.50th=[ 201], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 62, max= 414, per=25.20%, avg=178.43, stdev=89.22, samples=53 iops : min= 3, max= 25, avg=10.42, stdev= 5.66, samples=53 lat (msec) : 10=14.90%, 20=16.78%, 50=30.65%, 100=29.11%, 250=8.39% cpu : usr=0.10%, sys=4.82%, ctx=1222, 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=281,303,0,0 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=667KiB/s (683kB/s), 166KiB/s-198KiB/s (170kB/s-202kB/s), io=21.9MiB (22.9MB), run=26923-33593msec WRITE: bw=708KiB/s (725kB/s), 180KiB/s-197KiB/s (184kB/s-202kB/s), io=23.2MiB (24.4MB), run=26923-33593msec 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=153604: Thu Jun 11 16:32:14 2026 read: IOPS=1, BW=1200KiB/s (1228kB/s)(7168KiB/5975msec) clat (usec): min=485, max=2088.7k, avg=661734.14, stdev=918973.74 lat (usec): min=486, max=2088.7k, avg=661735.59, stdev=918974.14 clat percentiles (usec): | 1.00th=[ 486], 5.00th=[ 486], 10.00th=[ 486], | 20.00th=[ 126354], 30.00th=[ 152044], 40.00th=[ 152044], | 50.00th=[ 158335], 60.00th=[ 191890], 70.00th=[ 191890], | 80.00th=[1920992], 90.00th=[2088764], 95.00th=[2088764], | 99.00th=[2088764], 99.50th=[2088764], 99.90th=[2088764], | 99.95th=[2088764], 99.99th=[2088764] bw ( KiB/s): min= 2019, max= 6083, per=100.00%, avg=3046.25, stdev=2024.53, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=0, BW=857KiB/s (877kB/s)(5120KiB/5975msec); 0 zone resets clat (msec): min=109, max=495, avg=257.13, stdev=147.73 lat (msec): min=109, max=495, avg=257.20, stdev=147.74 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 2027, max= 4071, per=65.56%, avg=2713.67, stdev=1175.51, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 250=58.33%, 500=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=18.50%, ctx=1279, 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=153607: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=296KiB/s (303kB/s)(2048KiB/6926msec) clat (msec): min=180, max=185, avg=183.09, stdev= 3.64 lat (msec): min=180, max=185, avg=183.09, stdev= 3.64 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 1469, max= 2035, per=59.27%, avg=1752.00, stdev=400.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1478KiB/s (1514kB/s)(10.0MiB/6926msec); 0 zone resets clat (msec): min=149, max=4026, avg=640.62, stdev=1193.85 lat (msec): min=149, max=4026, avg=640.73, stdev=1193.84 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 211], 50.00th=[ 257], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 384], 90.00th=[ 447], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 2027, max= 6095, per=88.50%, avg=3663.00, stdev=1702.04, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 250=50.00%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=15.05%, ctx=256, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153608: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=1003KiB/s (1028kB/s)(6144KiB/6123msec) clat (usec): min=631, max=318656, avg=138202.92, stdev=126793.62 lat (usec): min=632, max=318657, avg=138204.12, stdev=126793.42 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[ 717], | 30.00th=[ 717], 40.00th=[110625], 50.00th=[110625], 60.00th=[168821], | 70.00th=[229639], 80.00th=[229639], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 2027, max= 4087, per=91.89%, avg=2716.33, stdev=1187.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=1003KiB/s (1028kB/s)(6144KiB/6123msec); 0 zone resets clat (msec): min=121, max=4183, avg=877.88, stdev=1621.48 lat (msec): min=121, max=4183, avg=877.96, stdev=1621.48 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 259], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 4178], 95.00th=[ 4178], | 99.00th=[ 4178], 99.50th=[ 4178], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4178] bw ( KiB/s): min= 2027, max= 2748, per=54.91%, avg=2272.67, stdev=411.73, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=50.00%, 500=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=13.66%, ctx=217, 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=153609: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=760KiB/s (778kB/s)(5120KiB/6741msec) clat (usec): min=715, max=328492, avg=161386.63, stdev=127356.11 lat (usec): min=716, max=328583, avg=161405.64, stdev=127385.40 clat percentiles (usec): | 1.00th=[ 717], 5.00th=[ 717], 10.00th=[ 717], 20.00th=[ 717], | 30.00th=[109577], 40.00th=[109577], 50.00th=[123208], 60.00th=[123208], | 70.00th=[244319], 80.00th=[244319], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 2035, max= 6107, per=100.00%, avg=4071.00, stdev=2879.34, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1063KiB/s (1089kB/s)(7168KiB/6741msec); 0 zone resets clat (msec): min=112, max=4330, avg=814.89, stdev=1552.75 lat (msec): min=112, max=4330, avg=814.96, stdev=1552.76 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 176], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 224], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 355], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 1398, max= 2043, per=45.32%, avg=1875.75, stdev=318.57, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=12.08%, ctx=218, 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=2957KiB/s (3028kB/s), 296KiB/s-1200KiB/s (303kB/s-1228kB/s), io=20.0MiB (20.0MB), run=5975-6926msec WRITE: bw=4140KiB/s (4239kB/s), 857KiB/s-1478KiB/s (877kB/s-1514kB/s), io=28.0MiB (29.4MB), run=5975-6926msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153602: Thu Jun 11 16:32:14 2026 read: IOPS=1, BW=1276KiB/s (1307kB/s)(7168KiB/5616msec) clat (msec): min=68, max=2081, avg=687.39, stdev=862.59 lat (msec): min=68, max=2081, avg=687.39, stdev=862.59 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 70], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 222], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 1770], 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= 1996, max= 4071, per=100.00%, avg=2965.75, stdev=1102.56, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=912KiB/s (934kB/s)(5120KiB/5616msec); 0 zone resets clat (msec): min=107, max=252, avg=155.63, stdev=58.88 lat (msec): min=107, max=252, avg=155.72, stdev=58.88 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 253], 95.00th=[ 253], | 99.00th=[ 253], 99.50th=[ 253], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 2007, max= 3992, per=63.40%, avg=2518.25, stdev=982.60, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=50.00%, 500=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.47%, ctx=62, 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=153603: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=284KiB/s (291kB/s)(2048KiB/7218msec) clat (msec): min=80, max=601, avg=341.07, stdev=368.96 lat (msec): min=80, max=601, avg=341.07, stdev=368.96 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 81], | 30.00th=[ 81], 40.00th=[ 81], 50.00th=[ 81], 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= 1992, max= 2027, per=70.83%, avg=2009.50, stdev=24.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1419KiB/s (1453kB/s)(10.0MiB/7218msec); 0 zone resets clat (msec): min=124, max=4202, avg=651.54, stdev=1254.41 lat (msec): min=124, max=4202, avg=651.62, stdev=1254.41 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 167], | 30.00th=[ 188], 40.00th=[ 194], 50.00th=[ 197], 60.00th=[ 247], | 70.00th=[ 253], 80.00th=[ 372], 90.00th=[ 575], 95.00th=[ 4212], | 99.00th=[ 4212], 99.50th=[ 4212], 99.90th=[ 4212], 99.95th=[ 4212], | 99.99th=[ 4212] bw ( KiB/s): min= 2007, max= 6131, per=91.86%, avg=3648.80, stdev=1712.56, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.01%, sys=5.50%, ctx=200, 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=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=153605: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=864KiB/s (885kB/s)(6144KiB/7113msec) clat (msec): min=74, max=362, avg=219.96, stdev=96.26 lat (msec): min=74, max=362, avg=219.96, stdev=96.26 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 247], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2023, max= 4087, per=95.79%, avg=2717.67, stdev=1185.92, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=864KiB/s (885kB/s)(6144KiB/7113msec); 0 zone resets clat (msec): min=102, max=4479, avg=951.12, stdev=1732.93 lat (msec): min=102, max=4479, avg=951.26, stdev=1733.03 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 368], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 4463], 95.00th=[ 4463], | 99.00th=[ 4463], 99.50th=[ 4463], 99.90th=[ 4463], 99.95th=[ 4463], | 99.99th=[ 4463] bw ( KiB/s): min= 1965, max= 2775, per=55.43%, avg=2201.50, stdev=383.76, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=4.78%, ctx=164, 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=153606: Thu Jun 11 16:32:14 2026 read: IOPS=0, BW=799KiB/s (818kB/s)(5120KiB/6407msec) clat (msec): min=56, max=382, avg=218.97, stdev=118.77 lat (msec): min=56, max=382, avg=218.97, stdev=118.77 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2023, max= 3930, per=93.95%, avg=2665.33, stdev=1095.28, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1119KiB/s (1146kB/s)(7168KiB/6407msec); 0 zone resets clat (msec): min=135, max=4088, avg=745.21, stdev=1475.38 lat (msec): min=136, max=4088, avg=745.33, stdev=1475.41 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 138], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 176], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 296], 90.00th=[ 4077], 95.00th=[ 4077], | 99.00th=[ 4077], 99.50th=[ 4077], 99.90th=[ 4077], 99.95th=[ 4077], | 99.99th=[ 4077] bw ( KiB/s): min= 1404, max= 4079, per=72.35%, avg=2873.75, stdev=1392.26, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, >=2000=8.33% cpu : usr=0.05%, sys=5.70%, ctx=95, 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=2837KiB/s (2905kB/s), 284KiB/s-1276KiB/s (291kB/s-1307kB/s), io=20.0MiB (20.0MB), run=5616-7218msec WRITE: bw=3972KiB/s (4068kB/s), 864KiB/s-1419KiB/s (885kB/s-1453kB/s), io=28.0MiB (29.4MB), run=5616-7218msec 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=153616: Thu Jun 11 16:32:24 2026 read: IOPS=1, BW=6282KiB/s (6433kB/s)(12.0MiB/1956msec) clat (msec): min=523, max=761, avg=643.66, stdev=119.00 lat (msec): min=523, max=761, avg=643.66, stdev=119.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7627, max= 8126, per=100.00%, avg=7876.50, stdev=352.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.70%, ctx=49, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=153617: Thu Jun 11 16:32:24 2026 read: IOPS=0, BW=1457KiB/s (1492kB/s)(4096KiB/2811msec) clat (nsec): min=167430k, max=167430k, avg=167429919.00, stdev= 0.00 lat (nsec): min=167433k, max=167433k, avg=167433431.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 167], 95.00th=[ 167], | 99.00th=[ 167], 99.50th=[ 167], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 5953, max= 5953, per=100.00%, avg=5953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2914KiB/s (2984kB/s)(8192KiB/2811msec); 0 zone resets clat (msec): min=778, max=1825, avg=1302.18, stdev=740.49 lat (msec): min=780, max=1826, avg=1303.07, stdev=739.66 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 1821], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8126, max= 8126, per=69.71%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.68%, ctx=92, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153618: Thu Jun 11 16:32:24 2026 write: IOPS=1, BW=5281KiB/s (5407kB/s)(12.0MiB/2327msec); 0 zone resets clat (msec): min=412, max=950, avg=763.90, stdev=304.36 lat (msec): min=413, max=951, avg=764.33, stdev=304.37 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8126, max= 8159, per=69.85%, 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%, 1000=66.67% cpu : usr=0.04%, sys=6.84%, ctx=55, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153620: Thu Jun 11 16:32:24 2026 write: IOPS=1, BW=7907KiB/s (8097kB/s)(12.0MiB/1554msec); 0 zone resets clat (msec): min=292, max=842, avg=500.09, stdev=298.45 lat (msec): min=293, max=842, avg=500.43, stdev=298.45 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 6068, max= 8126, per=60.88%, avg=7097.00, stdev=1455.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.06%, sys=12.94%, ctx=70, 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=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=5829KiB/s (5968kB/s), 1457KiB/s-6282KiB/s (1492kB/s-6433kB/s), io=16.0MiB (16.8MB), run=1956-2811msec WRITE: bw=11.4MiB/s (11.9MB/s), 2914KiB/s-7907KiB/s (2984kB/s-8097kB/s), io=32.0MiB (33.6MB), run=1554-2811msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153619: Thu Jun 11 16:32:24 2026 read: IOPS=1, BW=6660KiB/s (6820kB/s)(12.0MiB/1845msec) clat (msec): min=555, max=664, avg=593.27, stdev=61.85 lat (msec): min=555, max=664, avg=593.28, stdev=61.85 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 6430, max= 8143, per=100.00%, avg=7286.50, stdev=1211.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=24.67%, ctx=401, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153621: Thu Jun 11 16:32:24 2026 read: IOPS=0, BW=1580KiB/s (1618kB/s)(4096KiB/2593msec) clat (nsec): min=449131k, max=449131k, avg=449131043.00, stdev= 0.00 lat (nsec): min=449134k, max=449134k, avg=449133586.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 6838, max= 6838, per=100.00%, avg=6838.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3159KiB/s (3235kB/s)(8192KiB/2593msec); 0 zone resets clat (msec): min=772, max=1240, avg=1006.23, stdev=330.87 lat (msec): min=772, max=1240, avg=1006.63, stdev=330.92 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8143, max= 8143, per=65.43%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=10.15%, ctx=194, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153622: Thu Jun 11 16:32:24 2026 write: IOPS=1, BW=4667KiB/s (4779kB/s)(12.0MiB/2633msec); 0 zone resets clat (msec): min=231, max=1205, avg=834.43, stdev=526.85 lat (msec): min=231, max=1205, avg=834.88, stdev=526.85 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 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= 8126, max= 8143, per=65.36%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.65%, ctx=66, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153623: Thu Jun 11 16:32:24 2026 write: IOPS=1, BW=5109KiB/s (5232kB/s)(12.0MiB/2405msec); 0 zone resets clat (msec): min=336, max=1018, avg=761.78, stdev=371.31 lat (msec): min=336, max=1019, avg=762.30, stdev=371.47 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8094, max= 8143, per=65.24%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.11%, ctx=63, 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=6319KiB/s (6470kB/s), 1580KiB/s-6660KiB/s (1618kB/s-6820kB/s), io=16.0MiB (16.8MB), run=1845-2593msec WRITE: bw=12.2MiB/s (12.7MB/s), 3159KiB/s-5109KiB/s (3235kB/s-5232kB/s), io=32.0MiB (33.6MB), run=2405-2633msec