== sanity test 398b: DIO and buffer IO race ============== 08:20:16 (1787574016) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.76781 s, 8.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144415: Mon Aug 24 08:22:50 2026 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5992KiB/132201msec) clat (usec): min=33, max=1025.5k, avg=42970.35, stdev=45892.77 lat (usec): min=33, max=1025.5k, avg=42973.47, stdev=45893.46 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 90], | 20.00th=[ 18744], 30.00th=[ 25035], 40.00th=[ 30016], | 50.00th=[ 34866], 60.00th=[ 42206], 70.00th=[ 52167], | 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[ 101188], | 99.00th=[ 156238], 99.50th=[ 179307], 99.90th=[ 868221], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 7, max= 110, per=25.34%, avg=45.11, stdev=20.39, samples=259 iops : min= 1, max= 27, avg=10.62, stdev= 5.12, samples=259 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(6296KiB/132201msec); 0 zone resets clat (usec): min=937, max=353092, avg=42760.23, stdev=44795.53 lat (usec): min=938, max=353094, avg=42767.51, stdev=44802.86 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1303], 10.00th=[ 2024], 20.00th=[ 4424], | 30.00th=[ 8586], 40.00th=[ 19530], 50.00th=[ 31065], 60.00th=[ 41681], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[101188], 95.00th=[128451], | 99.00th=[198181], 99.50th=[217056], 99.90th=[316670], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 111, per=25.45%, avg=47.60, stdev=20.48, samples=258 iops : min= 1, max= 27, avg=11.24, stdev= 5.15, samples=258 lat (usec) : 50=0.36%, 100=4.75%, 250=0.78%, 500=0.10%, 1000=0.26% lat (msec) : 2=5.05%, 4=4.26%, 10=6.93%, 20=8.98%, 50=35.58% lat (msec) : 100=25.10%, 250=7.58%, 500=0.20%, 1000=0.03%, 2000=0.03% cpu : usr=0.10%, sys=4.99%, ctx=6526, 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=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=144416: Mon Aug 24 08:22:50 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5940KiB/133144msec) clat (usec): min=33, max=457109, avg=42187.23, stdev=31632.58 lat (usec): min=33, max=457111, avg=42191.82, stdev=31633.67 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 392], 20.00th=[ 19792], | 30.00th=[ 24773], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[147850], 99.90th=[246416], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 7, max= 96, per=24.94%, avg=44.39, stdev=19.22, samples=261 iops : min= 1, max= 24, avg=10.44, stdev= 4.86, samples=261 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(6348KiB/133144msec); 0 zone resets clat (usec): min=1005, max=998033, avg=44077.67, stdev=52916.97 lat (usec): min=1006, max=998035, avg=44080.25, stdev=52917.88 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1369], 10.00th=[ 2278], 20.00th=[ 5014], | 30.00th=[ 9110], 40.00th=[ 21103], 50.00th=[ 33424], 60.00th=[ 44827], | 70.00th=[ 56886], 80.00th=[ 73925], 90.00th=[101188], 95.00th=[129500], | 99.00th=[177210], 99.50th=[212861], 99.90th=[809501], 99.95th=[994051], | 99.99th=[994051] bw ( KiB/s): min= 7, max= 117, per=25.33%, avg=47.38, stdev=21.36, samples=261 iops : min= 1, max= 29, avg=11.20, stdev= 5.38, samples=261 lat (usec) : 50=0.39%, 100=3.91%, 250=0.46%, 500=0.16%, 750=0.03% lat (msec) : 2=4.72%, 4=4.04%, 10=7.58%, 20=8.95%, 50=35.74% lat (msec) : 100=26.66%, 250=7.16%, 500=0.13%, 1000=0.07% cpu : usr=0.08%, sys=4.99%, ctx=6658, majf=0, minf=20 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=144417: Mon Aug 24 08:22:50 2026 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6028KiB/132977msec) clat (usec): min=28, max=994114, avg=42392.84, stdev=40963.34 lat (usec): min=28, max=997192, avg=42398.84, stdev=41009.78 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 89], 20.00th=[ 18744], | 30.00th=[ 24773], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[101188], | 99.00th=[149947], 99.50th=[185598], 99.90th=[362808], 99.95th=[994051], | 99.99th=[994051] bw ( KiB/s): min= 7, max= 96, per=25.38%, avg=45.18, stdev=19.56, samples=259 iops : min= 1, max= 24, avg=10.64, stdev= 4.95, samples=259 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6260KiB/132977msec); 0 zone resets clat (usec): min=963, max=322331, avg=43805.47, stdev=44260.85 lat (usec): min=963, max=322334, avg=43807.48, stdev=44260.51 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1303], 10.00th=[ 1778], 20.00th=[ 4490], | 30.00th=[ 9372], 40.00th=[ 20579], 50.00th=[ 32900], 60.00th=[ 44827], | 70.00th=[ 60031], 80.00th=[ 73925], 90.00th=[104334], 95.00th=[126354], | 99.00th=[189793], 99.50th=[233833], 99.90th=[267387], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 94, per=25.06%, avg=46.87, stdev=18.88, samples=259 iops : min= 1, max= 23, avg=11.06, stdev= 4.73, samples=259 lat (usec) : 50=0.52%, 100=4.72%, 250=0.52%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.63%, 4=4.00%, 10=6.35%, 20=8.82%, 50=34.83% lat (msec) : 100=26.20%, 250=7.78%, 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=4.92%, ctx=6607, 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=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=144418: Mon Aug 24 08:22:50 2026 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(6052KiB/134421msec) clat (usec): min=32, max=208814, avg=41231.96, stdev=30144.64 lat (usec): min=32, max=208815, avg=41233.56, stdev=30144.74 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 112], 20.00th=[ 19006], | 30.00th=[ 24511], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 51119], 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[131597], 99.50th=[160433], 99.90th=[202376], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 7, max= 101, per=25.13%, avg=44.73, stdev=18.54, samples=262 iops : min= 1, max= 25, avg=10.53, stdev= 4.65, samples=262 write: IOPS=11, BW=46.4KiB/s (47.5kB/s)(6236KiB/134421msec); 0 zone resets clat (usec): min=916, max=953471, avg=45867.00, stdev=52909.49 lat (usec): min=916, max=953472, avg=45872.91, stdev=52906.45 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1237], 10.00th=[ 1991], 20.00th=[ 4883], | 30.00th=[ 10159], 40.00th=[ 21103], 50.00th=[ 34341], 60.00th=[ 44827], | 70.00th=[ 59507], 80.00th=[ 77071], 90.00th=[106431], 95.00th=[133694], | 99.00th=[198181], 99.50th=[263193], 99.90th=[549454], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 111, per=24.56%, avg=45.93, stdev=19.78, samples=263 iops : min= 1, max= 27, avg=10.83, stdev= 4.97, samples=263 lat (usec) : 50=0.62%, 100=4.17%, 250=0.78%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=4.98%, 4=4.00%, 10=6.32%, 20=9.08%, 50=36.13% lat (msec) : 100=25.65%, 250=7.71%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.06%, ctx=6760, majf=0, minf=20 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=179KiB/s (183kB/s), 44.6KiB/s-45.3KiB/s (45.7kB/s-46.4kB/s), io=23.4MiB (24.6MB), run=132201-134421msec WRITE: bw=187KiB/s (192kB/s), 46.4KiB/s-47.7KiB/s (47.5kB/s-48.8kB/s), io=24.6MiB (25.7MB), run=132201-134421msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144420: Mon Aug 24 08:25:38 2026 read: IOPS=4, BW=19.9KiB/s (20.3kB/s)(5992KiB/301633msec) clat (msec): min=5, max=1056, avg=38.10, stdev=47.46 lat (msec): min=5, max=1056, avg=38.11, stdev=47.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 53], 90.00th=[ 85], 95.00th=[ 112], | 99.00th=[ 182], 99.50th=[ 257], 99.90th=[ 542], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 79, per=28.63%, avg=22.62, stdev=15.69, samples=510 iops : min= 1, max= 19, avg= 5.02, stdev= 3.95, samples=510 write: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6296KiB/301633msec); 0 zone resets clat (msec): min=40, max=949, avg=155.28, stdev=73.59 lat (msec): min=40, max=949, avg=155.29, stdev=73.60 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 95], | 30.00th=[ 111], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 178], 80.00th=[ 203], 90.00th=[ 251], 95.00th=[ 292], | 99.00th=[ 397], 99.50th=[ 435], 99.90th=[ 575], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 56, per=24.89%, avg=20.66, stdev= 9.33, samples=584 iops : min= 1, max= 14, avg= 4.54, stdev= 2.38, samples=584 lat (msec) : 10=3.35%, 20=16.54%, 50=18.82%, 100=18.85%, 250=36.98% lat (msec) : 500=5.34%, 750=0.07%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.03%, ctx=5157, 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=144421: Mon Aug 24 08:25:38 2026 read: IOPS=4, BW=19.7KiB/s (20.2kB/s)(5940KiB/300892msec) clat (msec): min=5, max=1126, avg=36.03, stdev=45.87 lat (msec): min=5, max=1126, avg=36.05, stdev=45.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 77], 95.00th=[ 101], | 99.00th=[ 167], 99.50th=[ 228], 99.90th=[ 542], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 104, per=29.24%, avg=23.10, stdev=15.95, samples=496 iops : min= 1, max= 26, avg= 5.16, stdev= 4.05, samples=496 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6348KiB/300892msec); 0 zone resets clat (msec): min=41, max=862, avg=155.79, stdev=72.39 lat (msec): min=41, max=862, avg=155.80, stdev=72.39 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 70], 10.00th=[ 81], 20.00th=[ 97], | 30.00th=[ 112], 40.00th=[ 127], 50.00th=[ 140], 60.00th=[ 159], | 70.00th=[ 180], 80.00th=[ 209], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 380], 99.50th=[ 439], 99.90th=[ 542], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 48, per=24.97%, avg=20.73, stdev= 9.29, samples=588 iops : min= 1, max= 12, avg= 4.55, stdev= 2.37, samples=588 lat (msec) : 10=3.61%, 20=16.21%, 50=19.79%, 100=17.74%, 250=37.27% lat (msec) : 500=5.21%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.03%, ctx=5066, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144422: Mon Aug 24 08:25:38 2026 read: IOPS=5, BW=20.3KiB/s (20.8kB/s)(6028KiB/297358msec) clat (msec): min=4, max=562, avg=37.20, stdev=36.39 lat (msec): min=4, max=562, avg=37.21, stdev=36.40 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 110], | 99.00th=[ 169], 99.50th=[ 194], 99.90th=[ 279], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 111, per=28.95%, avg=22.87, stdev=16.18, samples=508 iops : min= 1, max= 27, avg= 5.09, stdev= 4.10, samples=508 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6260KiB/297358msec); 0 zone resets clat (msec): min=36, max=1320, avg=154.08, stdev=76.54 lat (msec): min=36, max=1320, avg=154.08, stdev=76.54 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 82], 20.00th=[ 95], | 30.00th=[ 110], 40.00th=[ 124], 50.00th=[ 140], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 205], 90.00th=[ 243], 95.00th=[ 284], | 99.00th=[ 401], 99.50th=[ 439], 99.90th=[ 743], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 56, per=24.96%, avg=20.72, stdev= 9.38, samples=580 iops : min= 1, max= 14, avg= 4.55, stdev= 2.40, samples=580 lat (msec) : 10=2.70%, 20=16.11%, 50=20.18%, 100=19.17%, 250=37.17% lat (msec) : 500=4.52%, 750=0.10%, 2000=0.03% cpu : usr=0.04%, sys=0.97%, ctx=4928, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144423: Mon Aug 24 08:25:38 2026 read: IOPS=5, BW=20.5KiB/s (20.0kB/s)(6052KiB/295758msec) clat (msec): min=5, max=558, avg=35.78, stdev=34.14 lat (msec): min=5, max=558, avg=35.79, stdev=34.14 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 101], | 99.00th=[ 167], 99.50th=[ 182], 99.90th=[ 249], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 96, per=29.86%, avg=23.59, stdev=15.98, samples=494 iops : min= 1, max= 24, avg= 5.25, stdev= 4.02, samples=494 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6236KiB/295758msec); 0 zone resets clat (msec): min=38, max=1411, avg=154.89, stdev=80.32 lat (msec): min=38, max=1411, avg=154.89, stdev=80.32 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 78], 20.00th=[ 93], | 30.00th=[ 108], 40.00th=[ 125], 50.00th=[ 142], 60.00th=[ 161], | 70.00th=[ 176], 80.00th=[ 207], 90.00th=[ 249], 95.00th=[ 284], | 99.00th=[ 401], 99.50th=[ 451], 99.90th=[ 869], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 56, per=24.95%, avg=20.71, stdev= 9.61, samples=577 iops : min= 1, max= 14, avg= 4.52, stdev= 2.44, samples=577 lat (msec) : 10=2.80%, 20=16.28%, 50=20.87%, 100=19.53%, 250=35.51% lat (msec) : 500=4.82%, 750=0.13%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.01%, ctx=5041, 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=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=79.6KiB/s (81.5kB/s), 19.7KiB/s-20.5KiB/s (20.2kB/s-20.0kB/s), io=23.4MiB (24.6MB), run=295758-301633msec WRITE: bw=83.3KiB/s (85.3kB/s), 20.9KiB/s-21.1KiB/s (21.4kB/s-21.6kB/s), io=24.6MiB (25.7MB), run=295758-301633msec 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=144486: Mon Aug 24 08:26:18 2026 read: IOPS=13, BW=221KiB/s (227kB/s)(5920KiB/26760msec) clat (usec): min=39, max=136785, avg=34593.02, stdev=27295.07 lat (usec): min=39, max=136787, avg=34594.13, stdev=27295.05 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 90], | 30.00th=[ 20841], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 46400], 80.00th=[ 53740], 90.00th=[ 65274], 95.00th=[ 83362], | 99.00th=[122160], 99.50th=[135267], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 29, max= 382, per=27.13%, avg=219.21, stdev=80.37, samples=52 iops : min= 1, max= 23, avg=13.00, stdev= 5.08, samples=52 write: IOPS=14, BW=238KiB/s (244kB/s)(6368KiB/26760msec); 0 zone resets clat (usec): min=1257, max=277673, avg=34360.70, stdev=38805.20 lat (usec): min=1259, max=277674, avg=34362.73, stdev=38805.03 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1729], 10.00th=[ 2737], 20.00th=[ 5014], | 30.00th=[ 7635], 40.00th=[ 12911], 50.00th=[ 19792], 60.00th=[ 30540], | 70.00th=[ 41157], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[111674], | 99.00th=[179307], 99.50th=[189793], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 58, max= 529, per=27.93%, avg=237.37, stdev=88.10, samples=52 iops : min= 3, max= 33, avg=14.19, stdev= 5.53, samples=52 lat (usec) : 50=0.78%, 100=9.38%, 250=0.91%, 750=0.13% lat (msec) : 2=3.91%, 4=5.60%, 10=10.03%, 20=9.51%, 50=35.29% lat (msec) : 100=19.92%, 250=4.43%, 500=0.13% cpu : usr=0.06%, sys=5.80%, 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=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=144488: Mon Aug 24 08:26:18 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5744KiB/29288msec) clat (usec): min=37, max=308827, avg=36959.16, stdev=35000.25 lat (usec): min=37, max=308828, avg=36965.35, stdev=34994.98 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 91], | 30.00th=[ 20055], 40.00th=[ 27132], 50.00th=[ 32637], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 58459], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[152044], 99.50th=[208667], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 21, max= 383, per=25.23%, avg=203.85, stdev=98.27, samples=55 iops : min= 1, max= 23, avg=12.04, stdev= 6.21, samples=55 write: IOPS=13, BW=223KiB/s (229kB/s)(6544KiB/29288msec); 0 zone resets clat (usec): min=1299, max=342347, avg=38243.63, stdev=45507.99 lat (usec): min=1301, max=342385, avg=38262.36, stdev=45514.19 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1795], 10.00th=[ 2900], 20.00th=[ 5080], | 30.00th=[ 8356], 40.00th=[ 12649], 50.00th=[ 20841], 60.00th=[ 31065], | 70.00th=[ 46924], 80.00th=[ 66323], 90.00th=[ 98042], 95.00th=[126354], | 99.00th=[198181], 99.50th=[229639], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 43, max= 413, per=26.44%, avg=224.75, stdev=96.84, samples=57 iops : min= 2, max= 25, avg=13.35, stdev= 6.14, samples=57 lat (usec) : 50=1.43%, 100=8.20%, 250=0.78%, 500=0.65%, 750=0.26% lat (msec) : 2=3.91%, 4=4.30%, 10=10.16%, 20=10.03%, 50=32.81% lat (msec) : 100=20.96%, 250=6.12%, 500=0.39% cpu : usr=0.07%, sys=5.15%, ctx=1387, 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=144489: Mon Aug 24 08:26:18 2026 read: IOPS=13, BW=211KiB/s (216kB/s)(6256KiB/29635msec) clat (usec): min=32, max=288989, avg=40749.25, stdev=37079.65 lat (usec): min=33, max=288990, avg=40750.44, stdev=37079.69 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 93], | 30.00th=[ 22414], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 42206], | 70.00th=[ 51643], 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[166724], 99.50th=[191890], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 58, max= 439, per=26.02%, avg=210.23, stdev=94.71, samples=57 iops : min= 3, max= 27, avg=12.46, stdev= 5.94, samples=57 write: IOPS=12, BW=204KiB/s (208kB/s)(6032KiB/29635msec); 0 zone resets clat (usec): min=1457, max=293524, avg=36034.54, stdev=39601.94 lat (usec): min=1457, max=293526, avg=36036.68, stdev=39601.82 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1795], 10.00th=[ 2868], 20.00th=[ 5866], | 30.00th=[ 8455], 40.00th=[ 12911], 50.00th=[ 23462], 60.00th=[ 33162], | 70.00th=[ 44303], 80.00th=[ 61080], 90.00th=[ 87557], 95.00th=[121111], | 99.00th=[177210], 99.50th=[244319], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 63, max= 472, per=23.75%, avg=201.88, stdev=80.64, samples=56 iops : min= 3, max= 29, avg=11.93, stdev= 5.13, samples=56 lat (usec) : 50=1.43%, 100=9.24%, 250=0.78%, 1000=0.13% lat (msec) : 2=3.91%, 4=3.12%, 10=9.77%, 20=8.59%, 50=34.24% lat (msec) : 100=21.48%, 250=7.03%, 500=0.26% cpu : usr=0.07%, sys=5.29%, ctx=1490, 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=144490: Mon Aug 24 08:26:18 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28243msec) clat (usec): min=34, max=204523, avg=37728.21, stdev=34331.90 lat (usec): min=34, max=204525, avg=37730.76, stdev=34332.59 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 74], | 30.00th=[ 18220], 40.00th=[ 27132], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 82314], 95.00th=[ 95945], | 99.00th=[156238], 99.50th=[175113], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 31, max= 383, per=26.82%, avg=216.69, stdev=89.16, samples=54 iops : min= 1, max= 23, avg=12.85, stdev= 5.60, samples=54 write: IOPS=13, BW=222KiB/s (227kB/s)(6256KiB/28243msec); 0 zone resets clat (usec): min=1323, max=302082, avg=35161.90, stdev=43744.78 lat (usec): min=1324, max=302083, avg=35164.35, stdev=43746.22 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1663], 10.00th=[ 2147], 20.00th=[ 4228], | 30.00th=[ 6783], 40.00th=[ 10945], 50.00th=[ 17695], 60.00th=[ 25560], | 70.00th=[ 42730], 80.00th=[ 58983], 90.00th=[ 91751], 95.00th=[125305], | 99.00th=[214959], 99.50th=[225444], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 498, per=26.13%, avg=222.07, stdev=95.70, samples=55 iops : min= 1, max= 31, avg=13.18, stdev= 6.01, samples=55 lat (usec) : 50=1.04%, 100=10.55%, 250=1.17% lat (msec) : 2=4.56%, 4=4.95%, 10=10.03%, 20=9.90%, 50=30.21% lat (msec) : 100=21.74%, 250=5.73%, 500=0.13% cpu : usr=0.07%, sys=5.06%, ctx=1415, 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=808KiB/s (828kB/s), 196KiB/s-221KiB/s (201kB/s-227kB/s), io=23.4MiB (24.5MB), run=26760-29635msec WRITE: bw=850KiB/s (871kB/s), 204KiB/s-238KiB/s (208kB/s-244kB/s), io=24.6MiB (25.8MB), run=26760-29635msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144483: Mon Aug 24 08:27:01 2026 read: IOPS=5, BW=83.0KiB/s (85.0kB/s)(5920KiB/71294msec) clat (msec): min=6, max=215, avg=36.19, stdev=31.07 lat (msec): min=6, max=215, avg=36.19, stdev=31.07 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 80], 95.00th=[ 100], | 99.00th=[ 163], 99.50th=[ 180], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 30, max= 318, per=28.56%, avg=94.54, stdev=60.68, samples=123 iops : min= 1, max= 19, avg= 5.15, stdev= 3.85, samples=123 write: IOPS=5, BW=89.3KiB/s (91.5kB/s)(6368KiB/71294msec); 0 zone resets clat (msec): min=50, max=523, avg=144.90, stdev=71.55 lat (msec): min=50, max=523, avg=144.90, stdev=71.55 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 124], 60.00th=[ 140], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 239], 95.00th=[ 288], | 99.00th=[ 418], 99.50th=[ 477], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 30, max= 192, per=25.85%, avg=89.97, stdev=41.58, samples=139 iops : min= 1, max= 12, avg= 4.84, stdev= 2.69, samples=139 lat (msec) : 10=1.95%, 20=16.93%, 50=19.01%, 100=22.79%, 250=34.77% lat (msec) : 500=4.43%, 750=0.13% cpu : usr=0.04%, sys=1.16%, ctx=1280, 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=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=144484: Mon Aug 24 08:27:01 2026 read: IOPS=4, BW=79.4KiB/s (81.4kB/s)(5744KiB/72301msec) clat (msec): min=7, max=359, avg=38.97, stdev=39.31 lat (msec): min=7, max=359, avg=38.97, stdev=39.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 56], 90.00th=[ 82], 95.00th=[ 127], | 99.00th=[ 180], 99.50th=[ 190], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 30, max= 382, per=28.00%, avg=92.69, stdev=63.64, samples=121 iops : min= 1, max= 23, avg= 5.02, stdev= 4.03, samples=121 write: IOPS=5, BW=90.5KiB/s (92.7kB/s)(6544KiB/72301msec); 0 zone resets clat (msec): min=40, max=509, avg=141.72, stdev=69.97 lat (msec): min=40, max=509, avg=141.73, stdev=69.97 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 127], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 188], 90.00th=[ 230], 95.00th=[ 275], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 30, max= 222, per=25.96%, avg=90.32, stdev=42.78, samples=142 iops : min= 1, max= 13, avg= 4.86, stdev= 2.71, samples=142 lat (msec) : 10=2.21%, 20=14.45%, 50=20.18%, 100=22.01%, 250=36.72% lat (msec) : 500=4.30%, 750=0.13% cpu : usr=0.04%, sys=1.15%, ctx=1280, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144485: Mon Aug 24 08:27:01 2026 read: IOPS=5, BW=88.9KiB/s (91.1kB/s)(6256KiB/70340msec) clat (msec): min=7, max=455, avg=37.85, stdev=41.07 lat (msec): min=7, max=455, avg=37.85, stdev=41.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 83], 95.00th=[ 113], | 99.00th=[ 194], 99.50th=[ 226], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 318, per=29.88%, avg=98.90, stdev=70.39, samples=125 iops : min= 1, max= 19, avg= 5.39, stdev= 4.47, samples=125 write: IOPS=5, BW=85.8KiB/s (87.8kB/s)(6032KiB/70340msec); 0 zone resets clat (msec): min=43, max=508, avg=146.70, stdev=72.78 lat (msec): min=43, max=508, avg=146.71, stdev=72.78 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 79], 20.00th=[ 94], | 30.00th=[ 107], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 188], 90.00th=[ 236], 95.00th=[ 284], | 99.00th=[ 464], 99.50th=[ 506], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 30, max= 192, per=25.15%, avg=87.51, stdev=38.04, samples=135 iops : min= 1, max= 12, avg= 4.69, stdev= 2.45, samples=135 lat (msec) : 10=2.08%, 20=17.45%, 50=22.01%, 100=17.71%, 250=36.46% lat (msec) : 500=3.91%, 750=0.39% cpu : usr=0.03%, sys=1.13%, ctx=1351, 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= 0: pid=144487: Mon Aug 24 08:27:01 2026 read: IOPS=5, BW=83.7KiB/s (85.7kB/s)(6032KiB/72075msec) clat (msec): min=6, max=424, avg=41.05, stdev=44.43 lat (msec): min=6, max=424, avg=41.05, stdev=44.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 55], 90.00th=[ 91], 95.00th=[ 127], | 99.00th=[ 228], 99.50th=[ 305], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 30, max= 287, per=28.46%, avg=94.19, stdev=59.31, samples=124 iops : min= 1, max= 17, avg= 5.10, stdev= 3.73, samples=124 write: IOPS=5, BW=86.8KiB/s (88.9kB/s)(6256KiB/72075msec); 0 zone resets clat (msec): min=42, max=414, avg=144.56, stdev=63.39 lat (msec): min=42, max=414, avg=144.56, stdev=63.39 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 118], 50.00th=[ 132], 60.00th=[ 150], | 70.00th=[ 171], 80.00th=[ 192], 90.00th=[ 232], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 380], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 31, max= 192, per=24.90%, avg=86.67, stdev=40.11, samples=141 iops : min= 1, max= 12, avg= 4.63, stdev= 2.59, samples=141 lat (msec) : 10=1.82%, 20=14.97%, 50=22.01%, 100=19.79%, 250=37.63% lat (msec) : 500=3.78% cpu : usr=0.03%, sys=1.16%, ctx=1328, 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=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=331KiB/s (339kB/s), 79.4KiB/s-88.9KiB/s (81.4kB/s-91.1kB/s), io=23.4MiB (24.5MB), run=70340-72301msec WRITE: bw=349KiB/s (357kB/s), 85.8KiB/s-90.5KiB/s (87.8kB/s-92.7kB/s), io=24.6MiB (25.8MB), run=70340-72301msec 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=144520: Mon Aug 24 08:27:15 2026 read: IOPS=2, BW=2060KiB/s (2110kB/s)(7168KiB/3479msec) clat (msec): min=81, max=404, avg=188.83, stdev=147.18 lat (msec): min=81, max=404, avg=188.83, stdev=147.18 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 88], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 125], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 401], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1992, max= 4231, per=75.99%, avg=3331.33, stdev=1182.48, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1472KiB/s (1507kB/s)(5120KiB/3479msec); 0 zone resets clat (msec): min=167, max=759, avg=393.61, stdev=234.06 lat (msec): min=167, max=759, avg=393.72, stdev=234.08 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 481], 80.00th=[ 481], 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= 1410, max= 2043, per=30.45%, avg=1869.00, stdev=263.47, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=3.62%, ctx=77, 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=144521: Mon Aug 24 08:27:15 2026 read: IOPS=0, BW=438KiB/s (449kB/s)(2048KiB/4671msec) clat (msec): min=80, max=650, avg=365.63, stdev=403.19 lat (msec): min=80, max=650, avg=365.63, stdev=403.19 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=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1917, max= 2043, per=45.16%, avg=1980.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2192KiB/s (2245kB/s)(10.0MiB/4671msec); 0 zone resets clat (msec): min=171, max=893, avg=390.13, stdev=265.52 lat (msec): min=171, max=893, avg=390.28, stdev=265.64 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 224], | 30.00th=[ 245], 40.00th=[ 262], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 376], 90.00th=[ 877], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 2019, max= 4096, per=48.84%, avg=2997.67, stdev=1065.22, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=2.89%, ctx=56, 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=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=144522: Mon Aug 24 08:27:15 2026 read: IOPS=1, BW=1707KiB/s (1748kB/s)(6144KiB/3599msec) clat (msec): min=76, max=636, avg=280.10, stdev=270.15 lat (msec): min=76, max=636, avg=280.10, stdev=270.15 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 153], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1892, max= 5657, per=72.54%, avg=3180.33, stdev=2145.44, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1707KiB/s (1748kB/s)(6144KiB/3599msec); 0 zone resets clat (msec): min=118, max=693, avg=302.32, stdev=218.99 lat (msec): min=118, max=693, avg=302.41, stdev=218.99 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1885, max= 4101, per=43.60%, avg=2676.33, stdev=1236.32, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=25.00% cpu : usr=0.00%, sys=3.97%, ctx=67, 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=144523: Mon Aug 24 08:27:15 2026 read: IOPS=1, BW=1737KiB/s (1779kB/s)(5120KiB/2947msec) clat (msec): min=63, max=524, avg=191.88, stdev=188.57 lat (msec): min=63, max=524, avg=191.88, stdev=188.57 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 64], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 124], 60.00th=[ 124], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 3771, max= 3785, per=86.18%, avg=3778.00, stdev= 9.90, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2432KiB/s (2491kB/s)(7168KiB/2947msec); 0 zone resets clat (msec): min=135, max=453, avg=268.98, stdev=100.30 lat (msec): min=135, max=453, avg=269.24, stdev=100.23 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 230], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 243], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 338], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1992, max= 4087, per=51.58%, avg=3165.75, stdev=951.69, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=16.67%, 750=8.33% cpu : usr=0.00%, sys=3.73%, ctx=60, 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=4385KiB/s (4490kB/s), 438KiB/s-2060KiB/s (449kB/s-2110kB/s), io=20.0MiB (20.0MB), run=2947-4671msec WRITE: bw=6138KiB/s (6286kB/s), 1472KiB/s-2432KiB/s (1507kB/s-2491kB/s), io=28.0MiB (29.4MB), run=2947-4671msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144525: Mon Aug 24 08:27:16 2026 read: IOPS=2, BW=2192KiB/s (2245kB/s)(7168KiB/3270msec) clat (msec): min=139, max=367, avg=222.45, stdev=84.33 lat (msec): min=139, max=367, avg=222.45, stdev=84.33 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 190], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 279], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1984, max= 4718, per=47.67%, avg=2690.00, stdev=1352.21, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1566KiB/s (1603kB/s)(5120KiB/3270msec); 0 zone resets clat (msec): min=218, max=505, avg=341.47, stdev=111.40 lat (msec): min=218, max=505, avg=341.66, stdev=111.35 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1984, max= 4087, per=32.05%, avg=2532.25, stdev=1036.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=14.19%, ctx=201, 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=144526: Mon Aug 24 08:27:16 2026 read: IOPS=0, BW=564KiB/s (578kB/s)(2048KiB/3629msec) clat (msec): min=2, max=491, avg=246.88, stdev=345.49 lat (msec): min=2, max=491, avg=246.91, stdev=345.45 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 3], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1622, max= 2043, per=32.47%, avg=1832.50, stdev=297.69, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2822KiB/s (2889kB/s)(10.0MiB/3629msec); 0 zone resets clat (msec): min=70, max=633, avg=310.15, stdev=204.51 lat (msec): min=70, max=633, avg=310.23, stdev=204.51 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 109], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 199], 60.00th=[ 300], | 70.00th=[ 372], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1984, max= 6131, per=44.90%, avg=3547.25, stdev=1967.76, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 4=8.33%, 100=8.33%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.03%, sys=13.56%, ctx=124, 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=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=144527: Mon Aug 24 08:27:16 2026 read: IOPS=1, BW=1899KiB/s (1944kB/s)(6144KiB/3236msec) clat (usec): min=796, max=353384, avg=209045.55, stdev=134724.85 lat (usec): min=797, max=353385, avg=209046.67, stdev=134724.91 clat percentiles (usec): | 1.00th=[ 799], 5.00th=[ 799], 10.00th=[ 799], 20.00th=[115868], | 30.00th=[115868], 40.00th=[210764], 50.00th=[210764], 60.00th=[233833], | 70.00th=[341836], 80.00th=[341836], 90.00th=[354419], 95.00th=[354419], | 99.00th=[354419], 99.50th=[354419], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 2043, max= 4087, per=59.65%, avg=3366.00, stdev=1147.30, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1899KiB/s (1944kB/s)(6144KiB/3236msec); 0 zone resets clat (msec): min=131, max=506, avg=329.34, stdev=150.73 lat (msec): min=131, max=506, avg=329.43, stdev=150.74 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 326], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1984, max= 3308, per=28.84%, avg=2278.60, stdev=575.97, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=13.14%, ctx=166, 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=144528: Mon Aug 24 08:27:16 2026 read: IOPS=1, BW=1596KiB/s (1634kB/s)(5120KiB/3209msec) clat (usec): min=360, max=631631, avg=200405.61, stdev=260619.73 lat (usec): min=361, max=631632, avg=200406.74, stdev=260619.71 clat percentiles (usec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[133694], 60.00th=[133694], | 70.00th=[235930], 80.00th=[235930], 90.00th=[633340], 95.00th=[633340], | 99.00th=[633340], 99.50th=[633340], 99.90th=[633340], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 2043, max= 3968, per=47.58%, avg=2684.67, stdev=1111.40, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2234KiB/s (2287kB/s)(7168KiB/3209msec); 0 zone resets clat (msec): min=78, max=575, avg=312.21, stdev=182.94 lat (msec): min=78, max=575, avg=312.28, stdev=182.95 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 140], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 284], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 489], 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= 1721, max= 4087, per=31.22%, avg=2466.50, stdev=1090.11, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=11.69%, ctx=140, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5643KiB/s (5779kB/s), 564KiB/s-2192KiB/s (578kB/s-2245kB/s), io=20.0MiB (20.0MB), run=3209-3629msec WRITE: bw=7901KiB/s (8090kB/s), 1566KiB/s-2822KiB/s (1603kB/s-2889kB/s), io=28.0MiB (29.4MB), run=3209-3629msec 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=144536: Mon Aug 24 08:27:29 2026 read: IOPS=1, BW=4103KiB/s (4201kB/s)(12.0MiB/2995msec) clat (msec): min=677, max=1106, avg=958.11, stdev=243.52 lat (msec): min=677, max=1106, avg=958.11, stdev=243.52 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 1099], 50.00th=[ 1099], 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= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=14.30%, ctx=258, majf=0, minf=7 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=144537: Mon Aug 24 08:27:29 2026 read: IOPS=0, BW=1205KiB/s (1234kB/s)(4096KiB/3398msec) clat (nsec): min=681493k, max=681493k, avg=681493155.00, stdev= 0.00 lat (nsec): min=681494k, max=681494k, avg=681494340.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2411KiB/s (2469kB/s)(8192KiB/3398msec); 0 zone resets clat (msec): min=500, max=2025, avg=1263.00, stdev=1077.81 lat (msec): min=502, max=2025, avg=1264.25, stdev=1076.92 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 2022], | 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= 7907, max= 7907, per=90.61%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.62%, ctx=88, 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=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=144538: Mon Aug 24 08:27:29 2026 write: IOPS=0, BW=3272KiB/s (3351kB/s)(12.0MiB/3755msec); 0 zone resets clat (msec): min=543, max=1964, avg=1167.79, stdev=725.97 lat (msec): min=544, max=1964, avg=1168.23, stdev=725.92 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8094, max= 8192, per=93.32%, avg=8143.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.69%, ctx=98, majf=0, minf=7 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=144539: Mon Aug 24 08:27:29 2026 write: IOPS=1, BW=4099KiB/s (4197kB/s)(12.0MiB/2998msec); 0 zone resets clat (msec): min=357, max=2069, avg=976.28, stdev=949.80 lat (msec): min=358, max=2070, avg=976.61, stdev=949.77 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 6747, max= 8126, per=85.22%, avg=7436.50, stdev=975.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.97%, ctx=48, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4822KiB/s (4937kB/s), 1205KiB/s-4103KiB/s (1234kB/s-4201kB/s), io=16.0MiB (16.8MB), run=2995-3398msec WRITE: bw=8726KiB/s (8936kB/s), 2411KiB/s-4099KiB/s (2469kB/s-4197kB/s), io=32.0MiB (33.6MB), run=2998-3755msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144540: Mon Aug 24 08:27:30 2026 read: IOPS=0, BW=2888KiB/s (2957kB/s)(12.0MiB/4255msec) clat (msec): min=769, max=2184, avg=1404.50, stdev=718.32 lat (msec): min=769, max=2184, avg=1404.50, stdev=718.32 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8110, max= 8143, per=100.00%, avg=8126.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.19%, ctx=53, 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=144541: Mon Aug 24 08:27:30 2026 read: IOPS=0, BW=862KiB/s (883kB/s)(4096KiB/4751msec) clat (nsec): min=2379.1M, max=2379.1M, avg=2379113484.00, stdev= 0.00 lat (nsec): min=2379.1M, max=2379.1M, avg=2379115616.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2366], 5.00th=[ 2366], 10.00th=[ 2366], 20.00th=[ 2366], | 30.00th=[ 2366], 40.00th=[ 2366], 50.00th=[ 2366], 60.00th=[ 2366], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1724KiB/s (1766kB/s)(8192KiB/4751msec); 0 zone resets clat (msec): min=657, max=1653, avg=1155.33, stdev=703.82 lat (msec): min=658, max=1653, avg=1156.09, stdev=703.99 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 1653], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=2.84%, ctx=44, 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=144542: Mon Aug 24 08:27:30 2026 write: IOPS=0, BW=2564KiB/s (2626kB/s)(12.0MiB/4792msec); 0 zone resets clat (msec): min=370, max=2459, avg=1572.17, stdev=1079.51 lat (msec): min=370, max=2459, avg=1572.67, stdev=1079.53 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 1888], 50.00th=[ 1888], 60.00th=[ 1888], | 70.00th=[ 2467], 80.00th=[ 2467], 90.00th=[ 2467], 95.00th=[ 2467], | 99.00th=[ 2467], 99.50th=[ 2467], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, 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=0.08%, sys=2.42%, ctx=55, 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=144543: Mon Aug 24 08:27:30 2026 write: IOPS=0, BW=2776KiB/s (2842kB/s)(12.0MiB/4427msec); 0 zone resets clat (msec): min=593, max=3030, avg=1461.85, stdev=1361.08 lat (msec): min=593, max=3030, avg=1462.18, stdev=1361.18 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 3037], 80.00th=[ 3037], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, 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=2.35%, ctx=57, 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=3449KiB/s (3531kB/s), 862KiB/s-2888KiB/s (883kB/s-2957kB/s), io=16.0MiB (16.8MB), run=4255-4751msec WRITE: bw=6838KiB/s (7002kB/s), 1724KiB/s-2776KiB/s (1766kB/s-2842kB/s), io=32.0MiB (33.6MB), run=4427-4792msec