== sanity test 398b: DIO and buffer IO race ============== 02:28:58 (1775197738) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.20893 s, 8.1 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=148710: Fri Apr 3 02:31:21 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5992KiB/121854msec) clat (usec): min=35, max=821865, avg=39948.72, stdev=35220.29 lat (usec): min=35, max=821867, avg=39952.01, stdev=35220.47 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 66], 10.00th=[ 212], 20.00th=[ 19268], | 30.00th=[ 23987], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 58983], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[135267], 99.50th=[160433], 99.90th=[316670], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 118, per=25.28%, avg=49.04, stdev=20.61, samples=239 iops : min= 1, max= 29, avg=11.62, stdev= 5.21, samples=239 write: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6296KiB/121854msec); 0 zone resets clat (usec): min=1144, max=255174, avg=39098.34, stdev=38168.03 lat (usec): min=1144, max=255175, avg=39100.81, stdev=38167.75 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1631], 10.00th=[ 2671], 20.00th=[ 5276], | 30.00th=[ 9765], 40.00th=[ 19006], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 52167], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[115868], | 99.00th=[162530], 99.50th=[198181], 99.90th=[221250], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 15, max= 135, per=25.38%, avg=51.51, stdev=19.68, samples=239 iops : min= 3, max= 33, avg=12.23, stdev= 4.93, samples=239 lat (usec) : 50=0.23%, 100=4.17%, 250=0.49%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.03% lat (msec) : 2=3.65%, 4=4.26%, 10=8.04%, 20=10.29%, 50=38.51% lat (msec) : 100=24.74%, 250=5.24%, 500=0.07%, 1000=0.03% cpu : usr=0.10%, sys=6.22%, ctx=6979, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148711: Fri Apr 3 02:31:21 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5940KiB/122352msec) clat (usec): min=28, max=350258, avg=39344.84, stdev=28424.30 lat (usec): min=29, max=350259, avg=39349.25, stdev=28422.77 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 69], 10.00th=[ 1680], 20.00th=[ 19792], | 30.00th=[ 24511], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 58983], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[116917], 99.50th=[128451], 99.90th=[346031], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 119, per=25.01%, avg=48.52, stdev=19.80, samples=238 iops : min= 1, max= 29, avg=11.48, stdev= 5.01, samples=238 write: IOPS=12, BW=51.9KiB/s (53.1kB/s)(6348KiB/122352msec); 0 zone resets clat (usec): min=1116, max=830793, avg=39951.51, stdev=44866.83 lat (usec): min=1118, max=830794, avg=39957.35, stdev=44864.99 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1598], 10.00th=[ 2474], 20.00th=[ 5735], | 30.00th=[ 10814], 40.00th=[ 19530], 50.00th=[ 30016], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[170918], 99.50th=[221250], 99.90th=[438305], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 110, per=25.31%, avg=51.39, stdev=21.20, samples=240 iops : min= 1, max= 27, avg=12.19, stdev= 5.33, samples=240 lat (usec) : 50=0.16%, 100=3.91%, 250=0.46%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.13%, 4=3.97%, 10=7.06%, 20=10.84%, 50=39.62% lat (msec) : 100=24.90%, 250=4.46%, 500=0.23%, 1000=0.03% cpu : usr=0.10%, sys=6.30%, ctx=7006, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148712: Fri Apr 3 02:31:21 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6028KiB/123222msec) clat (usec): min=32, max=248710, avg=38344.52, stdev=26477.52 lat (usec): min=33, max=248711, avg=38346.47, stdev=26477.65 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 67], 10.00th=[ 96], 20.00th=[ 19268], | 30.00th=[ 24511], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 56886], 90.00th=[ 72877], 95.00th=[ 84411], | 99.00th=[116917], 99.50th=[137364], 99.90th=[170918], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 7, max= 102, per=25.23%, avg=48.94, stdev=19.19, samples=239 iops : min= 1, max= 25, avg=11.59, stdev= 4.85, samples=239 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6260KiB/123222msec); 0 zone resets clat (usec): min=1169, max=979276, avg=41482.01, stdev=47283.51 lat (usec): min=1171, max=979280, avg=41485.28, stdev=47283.83 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1713], 10.00th=[ 3130], 20.00th=[ 6194], | 30.00th=[ 10683], 40.00th=[ 21365], 50.00th=[ 32375], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[168821], 99.50th=[229639], 99.90th=[530580], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 7, max= 118, per=24.82%, avg=50.38, stdev=19.40, samples=241 iops : min= 1, max= 29, avg=11.96, stdev= 4.88, samples=241 lat (usec) : 50=0.55%, 100=4.49%, 250=0.33%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.07% lat (msec) : 2=3.22%, 4=3.42%, 10=8.33%, 20=9.99%, 50=39.81% lat (msec) : 100=24.74%, 250=4.72%, 500=0.10%, 750=0.03%, 1000=0.03% cpu : usr=0.09%, sys=6.32%, ctx=7010, 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=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=148713: Fri Apr 3 02:31:21 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6052KiB/123638msec) clat (usec): min=32, max=413734, avg=39476.89, stdev=30693.93 lat (usec): min=32, max=413736, avg=39479.89, stdev=30695.10 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 116], 20.00th=[ 18482], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 58983], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[141558], 99.50th=[177210], 99.90th=[267387], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7, max= 125, per=25.25%, avg=48.98, stdev=20.04, samples=241 iops : min= 1, max= 31, avg=11.59, stdev= 5.06, samples=241 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(6236KiB/123638msec); 0 zone resets clat (usec): min=1232, max=951616, avg=40613.73, stdev=45356.59 lat (usec): min=1232, max=951619, avg=40622.66, stdev=45355.52 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1745], 10.00th=[ 2835], 20.00th=[ 5342], | 30.00th=[ 10421], 40.00th=[ 20841], 50.00th=[ 32113], 60.00th=[ 41681], | 70.00th=[ 53216], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[170918], 99.50th=[198181], 99.90th=[346031], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 119, per=24.94%, avg=50.63, stdev=20.01, samples=240 iops : min= 1, max= 29, avg=12.01, stdev= 5.02, samples=240 lat (usec) : 50=0.36%, 100=4.26%, 250=0.65%, 500=0.10%, 750=0.07% lat (msec) : 2=3.32%, 4=4.23%, 10=7.49%, 20=10.71%, 50=38.31% lat (msec) : 100=25.20%, 250=5.14%, 500=0.13%, 1000=0.03% cpu : usr=0.09%, sys=6.12%, ctx=7039, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=194KiB/s (199kB/s), 48.5KiB/s-49.2KiB/s (49.7kB/s-50.4kB/s), io=23.4MiB (24.6MB), run=121854-123638msec WRITE: bw=203KiB/s (208kB/s), 50.4KiB/s-51.9KiB/s (51.6kB/s-53.1kB/s), io=24.6MiB (25.7MB), run=121854-123638msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148706: Fri Apr 3 02:33:12 2026 read: IOPS=6, BW=25.6KiB/s (26.2kB/s)(5992KiB/234325msec) clat (msec): min=5, max=859, avg=31.65, stdev=38.35 lat (msec): min=5, max=859, avg=31.65, stdev=38.35 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 69], 95.00th=[ 88], | 99.00th=[ 159], 99.50th=[ 218], 99.90th=[ 313], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 103, per=27.33%, avg=27.88, stdev=18.89, samples=417 iops : min= 1, max= 25, avg= 6.36, stdev= 4.76, samples=417 write: IOPS=6, BW=26.9KiB/s (27.5kB/s)(6296KiB/234325msec); 0 zone resets clat (msec): min=37, max=528, avg=118.42, stdev=59.90 lat (msec): min=37, max=528, avg=118.43, stdev=59.90 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 74], | 30.00th=[ 83], 40.00th=[ 91], 50.00th=[ 102], 60.00th=[ 113], | 70.00th=[ 130], 80.00th=[ 157], 90.00th=[ 199], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 388], 99.90th=[ 514], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 56, per=24.80%, avg=26.54, stdev=12.41, samples=459 iops : min= 1, max= 14, avg= 6.01, stdev= 3.16, samples=459 lat (msec) : 10=3.48%, 20=21.81%, 50=16.60%, 100=30.08%, 250=25.72% lat (msec) : 500=2.21%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.62%, ctx=5396, 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=148707: Fri Apr 3 02:33:12 2026 read: IOPS=6, BW=25.3KiB/s (25.9kB/s)(5940KiB/234604msec) clat (msec): min=6, max=905, avg=32.80, stdev=41.54 lat (msec): min=6, max=905, avg=32.80, stdev=41.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 72], 95.00th=[ 105], | 99.00th=[ 167], 99.50th=[ 192], 99.90th=[ 485], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 96, per=27.58%, avg=28.13, stdev=18.65, samples=410 iops : min= 1, max= 24, avg= 6.41, stdev= 4.74, samples=410 write: IOPS=6, BW=27.1KiB/s (27.7kB/s)(6348KiB/234604msec); 0 zone resets clat (msec): min=36, max=524, avg=116.82, stdev=58.66 lat (msec): min=36, max=524, avg=116.83, stdev=58.67 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 74], | 30.00th=[ 83], 40.00th=[ 91], 50.00th=[ 101], 60.00th=[ 112], | 70.00th=[ 127], 80.00th=[ 153], 90.00th=[ 197], 95.00th=[ 239], | 99.00th=[ 317], 99.50th=[ 380], 99.90th=[ 493], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 7, max= 63, per=24.88%, avg=26.62, stdev=12.46, samples=462 iops : min= 1, max= 15, avg= 6.03, stdev= 3.18, samples=462 lat (msec) : 10=3.42%, 20=20.83%, 50=17.55%, 100=29.95%, 250=26.04% lat (msec) : 500=2.15%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.64%, ctx=5443, 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=148708: Fri Apr 3 02:33:12 2026 read: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6028KiB/234771msec) clat (msec): min=5, max=327, avg=32.55, stdev=33.36 lat (msec): min=5, max=327, avg=32.55, stdev=33.36 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 75], 95.00th=[ 102], | 99.00th=[ 159], 99.50th=[ 201], 99.90th=[ 284], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 96, per=26.30%, avg=26.83, stdev=18.45, samples=435 iops : min= 1, max= 24, avg= 6.08, stdev= 4.67, samples=435 write: IOPS=6, BW=26.7KiB/s (27.3kB/s)(6260KiB/234771msec); 0 zone resets clat (msec): min=39, max=1013, avg=118.34, stdev=64.93 lat (msec): min=39, max=1013, avg=118.35, stdev=64.93 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 91], 50.00th=[ 102], 60.00th=[ 114], | 70.00th=[ 129], 80.00th=[ 159], 90.00th=[ 201], 95.00th=[ 234], | 99.00th=[ 330], 99.50th=[ 380], 99.90th=[ 651], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 63, per=24.55%, avg=26.26, stdev=12.91, samples=461 iops : min= 1, max= 15, avg= 5.94, stdev= 3.29, samples=461 lat (msec) : 10=3.87%, 20=20.38%, 50=17.48%, 100=29.79%, 250=26.53% lat (msec) : 500=1.86%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.67%, ctx=5342, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148709: Fri Apr 3 02:33:12 2026 read: IOPS=6, BW=26.0KiB/s (26.7kB/s)(6052KiB/232406msec) clat (msec): min=5, max=307, avg=31.45, stdev=32.33 lat (msec): min=5, max=307, avg=31.45, stdev=32.33 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 30], 80.00th=[ 43], 90.00th=[ 70], 95.00th=[ 99], | 99.00th=[ 167], 99.50th=[ 188], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 103, per=28.00%, avg=28.56, stdev=18.66, samples=411 iops : min= 1, max= 25, avg= 6.53, stdev= 4.71, samples=411 write: IOPS=6, BW=26.8KiB/s (27.5kB/s)(6236KiB/232406msec); 0 zone resets clat (msec): min=36, max=1004, avg=118.24, stdev=63.02 lat (msec): min=36, max=1004, avg=118.24, stdev=63.02 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 89], 50.00th=[ 102], 60.00th=[ 114], | 70.00th=[ 132], 80.00th=[ 159], 90.00th=[ 199], 95.00th=[ 241], | 99.00th=[ 305], 99.50th=[ 363], 99.90th=[ 651], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 56, per=24.82%, avg=26.56, stdev=12.56, samples=454 iops : min= 1, max= 14, avg= 6.02, stdev= 3.20, samples=454 lat (msec) : 10=4.33%, 20=21.35%, 50=16.76%, 100=29.59%, 250=25.81% lat (msec) : 500=2.08%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.63%, ctx=5351, 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=102KiB/s (105kB/s), 25.3KiB/s-26.0KiB/s (25.9kB/s-26.7kB/s), io=23.4MiB (24.6MB), run=232406-234771msec WRITE: bw=107KiB/s (110kB/s), 26.7KiB/s-27.1KiB/s (27.3kB/s-27.7kB/s), io=24.6MiB (25.7MB), run=232406-234771msec 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=148774: Fri Apr 3 02:33:45 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(5920KiB/23893msec) clat (usec): min=35, max=129236, avg=32895.95, stdev=26324.50 lat (usec): min=36, max=129237, avg=32897.19, stdev=26324.51 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 109], | 30.00th=[ 17433], 40.00th=[ 25035], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 42730], 80.00th=[ 54789], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[103285], 99.50th=[128451], 99.90th=[129500], 99.95th=[129500], | 99.99th=[129500] bw ( KiB/s): min= 63, max= 542, per=24.10%, avg=241.24, stdev=90.35, samples=46 iops : min= 3, max= 33, avg=14.35, stdev= 5.74, samples=46 write: IOPS=16, BW=267KiB/s (273kB/s)(6368KiB/23893msec); 0 zone resets clat (usec): min=1495, max=200555, avg=29239.87, stdev=31654.62 lat (usec): min=1498, max=200556, avg=29244.71, stdev=31653.51 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1893], 10.00th=[ 2474], 20.00th=[ 4817], | 30.00th=[ 7439], 40.00th=[ 10683], 50.00th=[ 17433], 60.00th=[ 25297], | 70.00th=[ 35914], 80.00th=[ 51643], 90.00th=[ 71828], 95.00th=[ 91751], | 99.00th=[139461], 99.50th=[181404], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 62, max= 512, per=25.00%, avg=263.24, stdev=101.57, samples=46 iops : min= 3, max= 32, avg=15.72, stdev= 6.45, samples=46 lat (usec) : 50=0.78%, 100=8.33%, 250=1.56%, 500=0.26%, 750=0.26% lat (msec) : 2=3.52%, 4=5.60%, 10=10.55%, 20=12.63%, 50=34.51% lat (msec) : 100=19.79%, 250=2.21% cpu : usr=0.14%, sys=7.79%, ctx=1552, 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=148775: Fri Apr 3 02:33:45 2026 read: IOPS=15, BW=241KiB/s (247kB/s)(5744KiB/23836msec) clat (usec): min=37, max=184026, avg=34378.73, stdev=27848.35 lat (usec): min=37, max=184026, avg=34380.01, stdev=27848.34 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 404], | 30.00th=[ 19792], 40.00th=[ 26084], 50.00th=[ 31327], 60.00th=[ 36963], | 70.00th=[ 44827], 80.00th=[ 57410], 90.00th=[ 67634], 95.00th=[ 84411], | 99.00th=[105382], 99.50th=[154141], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 126, max= 415, per=24.03%, avg=240.52, stdev=66.98, samples=46 iops : min= 7, max= 25, avg=14.30, stdev= 4.22, samples=46 write: IOPS=17, BW=275KiB/s (281kB/s)(6544KiB/23836msec); 0 zone resets clat (usec): min=1513, max=144520, avg=27699.99, stdev=27862.37 lat (usec): min=1514, max=144520, avg=27705.73, stdev=27864.08 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1876], 10.00th=[ 2737], 20.00th=[ 4752], | 30.00th=[ 7832], 40.00th=[ 11994], 50.00th=[ 18482], 60.00th=[ 25297], | 70.00th=[ 32113], 80.00th=[ 50070], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[112722], 99.50th=[128451], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 93, max= 480, per=25.65%, avg=270.07, stdev=87.94, samples=46 iops : min= 5, max= 30, avg=16.15, stdev= 5.61, samples=46 lat (usec) : 50=1.17%, 100=7.29%, 250=0.78%, 500=0.13%, 750=0.13% lat (msec) : 2=3.91%, 4=4.95%, 10=10.68%, 20=13.54%, 50=35.81% lat (msec) : 100=19.53%, 250=2.08% cpu : usr=0.08%, sys=7.22%, ctx=1546, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148776: Fri Apr 3 02:33:45 2026 read: IOPS=16, BW=262KiB/s (268kB/s)(6256KiB/23915msec) clat (usec): min=34, max=273256, avg=32019.74, stdev=32376.29 lat (usec): min=35, max=273259, avg=32029.99, stdev=32367.96 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 81], | 30.00th=[ 14746], 40.00th=[ 23725], 50.00th=[ 27395], 60.00th=[ 33162], | 70.00th=[ 41157], 80.00th=[ 52167], 90.00th=[ 68682], 95.00th=[ 79168], | 99.00th=[164627], 99.50th=[225444], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 60, max= 539, per=26.01%, avg=260.35, stdev=112.14, samples=46 iops : min= 3, max= 33, avg=15.54, stdev= 7.10, samples=46 write: IOPS=15, BW=252KiB/s (258kB/s)(6032KiB/23915msec); 0 zone resets clat (usec): min=1616, max=231438, avg=29807.93, stdev=31609.06 lat (usec): min=1618, max=231441, avg=29810.37, stdev=31609.18 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1909], 10.00th=[ 3064], 20.00th=[ 5276], | 30.00th=[ 8094], 40.00th=[ 12649], 50.00th=[ 21103], 60.00th=[ 28705], | 70.00th=[ 36963], 80.00th=[ 47973], 90.00th=[ 70779], 95.00th=[ 90702], | 99.00th=[128451], 99.50th=[231736], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 63, max= 479, per=23.35%, avg=245.83, stdev=103.55, samples=46 iops : min= 3, max= 29, avg=14.63, stdev= 6.52, samples=46 lat (usec) : 50=1.56%, 100=9.51%, 250=1.56%, 500=0.26%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=3.12%, 4=3.78%, 10=10.94%, 20=11.33%, 50=36.72% lat (msec) : 100=17.71%, 250=2.86%, 500=0.13% cpu : usr=0.12%, sys=7.34%, ctx=1487, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148777: Fri Apr 3 02:33:45 2026 read: IOPS=16, BW=265KiB/s (271kB/s)(6032KiB/22800msec) clat (usec): min=34, max=156928, avg=31071.58, stdev=26413.21 lat (usec): min=34, max=156928, avg=31075.34, stdev=26423.59 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 85], | 30.00th=[ 16909], 40.00th=[ 23462], 50.00th=[ 28705], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50070], 90.00th=[ 67634], 95.00th=[ 77071], | 99.00th=[132645], 99.50th=[143655], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 31, max= 510, per=26.43%, avg=264.57, stdev=103.88, samples=44 iops : min= 1, max= 31, avg=15.82, stdev= 6.54, samples=44 write: IOPS=17, BW=274KiB/s (281kB/s)(6256KiB/22800msec); 0 zone resets clat (usec): min=1523, max=184826, avg=27900.33, stdev=29203.57 lat (usec): min=1525, max=184828, avg=27902.68, stdev=29203.76 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2474], 10.00th=[ 3392], 20.00th=[ 5735], | 30.00th=[ 7570], 40.00th=[ 11469], 50.00th=[ 16712], 60.00th=[ 24773], | 70.00th=[ 34341], 80.00th=[ 48497], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[124257], 99.50th=[183501], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 124, max= 473, per=26.17%, avg=275.55, stdev=84.05, samples=44 iops : min= 7, max= 29, avg=16.48, stdev= 5.33, samples=44 lat (usec) : 50=1.04%, 100=9.24%, 250=1.04%, 500=0.39%, 750=0.13% lat (msec) : 2=1.69%, 4=5.60%, 10=12.24%, 20=13.41%, 50=35.68% lat (msec) : 100=17.32%, 250=2.21% cpu : usr=0.14%, sys=7.56%, ctx=1489, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1002KiB/s (1026kB/s), 241KiB/s-265KiB/s (247kB/s-271kB/s), io=23.4MiB (24.5MB), run=22800-23915msec WRITE: bw=1054KiB/s (1079kB/s), 252KiB/s-275KiB/s (258kB/s-281kB/s), io=24.6MiB (25.8MB), run=22800-23915msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148779: Fri Apr 3 02:34:16 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(5920KiB/53453msec) clat (msec): min=7, max=156, avg=30.09, stdev=24.31 lat (msec): min=7, max=156, avg=30.10, stdev=24.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 56], 95.00th=[ 79], | 99.00th=[ 132], 99.50th=[ 148], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 30, max= 346, per=26.06%, avg=115.17, stdev=68.81, samples=100 iops : min= 1, max= 21, avg= 6.51, stdev= 4.41, samples=100 write: IOPS=7, BW=119KiB/s (122kB/s)(6368KiB/53453msec); 0 zone resets clat (msec): min=31, max=341, avg=106.15, stdev=53.30 lat (msec): min=31, max=341, avg=106.16, stdev=53.30 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 67], | 30.00th=[ 74], 40.00th=[ 81], 50.00th=[ 89], 60.00th=[ 102], | 70.00th=[ 113], 80.00th=[ 144], 90.00th=[ 180], 95.00th=[ 222], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 256, per=25.62%, avg=119.11, stdev=52.78, samples=105 iops : min= 1, max= 16, avg= 6.74, stdev= 3.42, samples=105 lat (msec) : 10=3.12%, 20=17.58%, 50=21.74%, 100=34.77%, 250=21.22% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.85%, ctx=1504, 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=148780: Fri Apr 3 02:34:16 2026 read: IOPS=6, BW=106KiB/s (109kB/s)(5744KiB/54173msec) clat (msec): min=6, max=243, avg=31.81, stdev=30.91 lat (msec): min=6, max=243, avg=31.81, stdev=30.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 63], 95.00th=[ 105], | 99.00th=[ 176], 99.50th=[ 184], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 21, max= 383, per=26.51%, avg=117.18, stdev=71.21, samples=97 iops : min= 1, max= 23, avg= 6.64, stdev= 4.51, samples=97 write: IOPS=7, BW=121KiB/s (124kB/s)(6544KiB/54173msec); 0 zone resets clat (msec): min=35, max=319, avg=104.33, stdev=49.42 lat (msec): min=35, max=319, avg=104.33, stdev=49.42 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 51], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 75], 40.00th=[ 84], 50.00th=[ 90], 60.00th=[ 99], | 70.00th=[ 110], 80.00th=[ 136], 90.00th=[ 178], 95.00th=[ 209], | 99.00th=[ 259], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 223, per=26.20%, avg=121.84, stdev=51.31, samples=106 iops : min= 1, max= 13, avg= 6.92, stdev= 3.28, samples=106 lat (msec) : 10=1.95%, 20=20.05%, 50=20.96%, 100=34.38%, 250=21.74% lat (msec) : 500=0.91% cpu : usr=0.03%, sys=1.88%, ctx=1456, 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=148781: Fri Apr 3 02:34:16 2026 read: IOPS=7, BW=122KiB/s (125kB/s)(6256KiB/51417msec) clat (msec): min=7, max=259, avg=31.37, stdev=31.18 lat (msec): min=7, max=259, avg=31.37, stdev=31.18 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 61], 95.00th=[ 90], | 99.00th=[ 199], 99.50th=[ 228], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 384, per=29.19%, avg=129.01, stdev=87.57, samples=96 iops : min= 1, max= 24, avg= 7.39, stdev= 5.60, samples=96 write: IOPS=7, BW=117KiB/s (120kB/s)(6032KiB/51417msec); 0 zone resets clat (msec): min=35, max=329, avg=103.69, stdev=48.72 lat (msec): min=35, max=329, avg=103.69, stdev=48.72 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 67], | 30.00th=[ 73], 40.00th=[ 81], 50.00th=[ 90], 60.00th=[ 101], | 70.00th=[ 113], 80.00th=[ 136], 90.00th=[ 174], 95.00th=[ 213], | 99.00th=[ 271], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 224, per=25.11%, avg=116.77, stdev=49.57, samples=101 iops : min= 1, max= 14, avg= 6.61, stdev= 3.20, samples=101 lat (msec) : 10=2.21%, 20=20.18%, 50=22.40%, 100=33.33%, 250=20.96% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.90%, ctx=1502, 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=148782: Fri Apr 3 02:34:16 2026 read: IOPS=7, BW=112KiB/s (115kB/s)(6032KiB/53672msec) clat (msec): min=7, max=266, avg=32.46, stdev=29.31 lat (msec): min=7, max=266, avg=32.46, stdev=29.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 67], 95.00th=[ 93], | 99.00th=[ 161], 99.50th=[ 165], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 30, max= 352, per=27.67%, avg=122.30, stdev=68.98, samples=97 iops : min= 1, max= 22, avg= 6.95, stdev= 4.38, samples=97 write: IOPS=7, BW=117KiB/s (119kB/s)(6256KiB/53672msec); 0 zone resets clat (msec): min=43, max=373, avg=105.83, stdev=51.62 lat (msec): min=43, max=373, avg=105.83, stdev=51.62 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 69], | 30.00th=[ 75], 40.00th=[ 85], 50.00th=[ 91], 60.00th=[ 100], | 70.00th=[ 113], 80.00th=[ 131], 90.00th=[ 176], 95.00th=[ 205], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 192, per=25.08%, avg=116.62, stdev=49.14, samples=106 iops : min= 1, max= 12, avg= 6.59, stdev= 3.20, samples=106 lat (msec) : 10=1.82%, 20=19.92%, 50=20.83%, 100=35.16%, 250=20.96% lat (msec) : 500=1.30% cpu : usr=0.06%, sys=1.98%, ctx=1533, 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=442KiB/s (453kB/s), 106KiB/s-122KiB/s (109kB/s-125kB/s), io=23.4MiB (24.5MB), run=51417-54173msec WRITE: bw=465KiB/s (476kB/s), 117KiB/s-121KiB/s (119kB/s-124kB/s), io=24.6MiB (25.8MB), run=51417-54173msec 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=148795: Fri Apr 3 02:34:32 2026 read: IOPS=1, BW=1226KiB/s (1256kB/s)(7168KiB/5846msec) clat (usec): min=677, max=3796.2k, avg=692271.55, stdev=1375368.30 lat (usec): min=678, max=3796.2k, avg=692273.07, stdev=1375368.20 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], | 20.00th=[ 115868], 30.00th=[ 131597], 40.00th=[ 131597], | 50.00th=[ 173016], 60.00th=[ 183501], 70.00th=[ 183501], | 80.00th=[ 446694], 90.00th=[3808429], 95.00th=[3808429], | 99.00th=[3808429], 99.50th=[3808429], 99.90th=[3808429], | 99.95th=[3808429], 99.99th=[3808429] bw ( KiB/s): min= 2043, max= 4007, per=79.90%, avg=2799.00, stdev=947.76, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=876KiB/s (897kB/s)(5120KiB/5846msec); 0 zone resets clat (msec): min=103, max=383, avg=190.48, stdev=113.83 lat (msec): min=103, max=383, avg=190.55, stdev=113.82 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 203], 80.00th=[ 203], 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= 2003, max= 6131, per=68.90%, avg=3379.00, stdev=2383.30, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=11.15%, ctx=514, 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=148796: Fri Apr 3 02:34:32 2026 read: IOPS=0, BW=395KiB/s (404kB/s)(2048KiB/5186msec) clat (usec): min=1602, max=238576, avg=120089.69, stdev=167566.02 lat (usec): min=1603, max=238580, avg=120091.98, stdev=167567.67 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1598], 10.00th=[ 1598], 20.00th=[ 1598], | 30.00th=[ 1598], 40.00th=[ 1598], 50.00th=[ 1598], 60.00th=[238027], | 70.00th=[238027], 80.00th=[238027], 90.00th=[238027], 95.00th=[238027], | 99.00th=[238027], 99.50th=[238027], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 1526, max= 2000, per=50.33%, avg=1763.00, stdev=335.17, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1975KiB/s (2022kB/s)(10.0MiB/5186msec); 0 zone resets clat (msec): min=127, max=2337, avg=487.05, stdev=666.10 lat (msec): min=127, max=2337, avg=487.13, stdev=666.10 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 146], 40.00th=[ 169], 50.00th=[ 220], 60.00th=[ 334], | 70.00th=[ 426], 80.00th=[ 430], 90.00th=[ 535], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2027, max= 8000, per=81.63%, avg=4003.00, stdev=2813.13, samples=4 iops : min= 1, max= 7, avg= 3.00, stdev= 2.83, samples=4 lat (msec) : 2=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.01%, ctx=145, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148797: Fri Apr 3 02:34:32 2026 read: IOPS=1, BW=1140KiB/s (1168kB/s)(6144KiB/5388msec) clat (msec): min=28, max=521, avg=201.90, stdev=178.58 lat (msec): min=28, max=521, avg=201.90, stdev=178.58 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 29], 10.00th=[ 29], 20.00th=[ 63], | 30.00th=[ 63], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 190], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 2003, max= 4000, per=71.86%, avg=2517.25, stdev=988.61, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1140KiB/s (1168kB/s)(6144KiB/5388msec); 0 zone resets clat (msec): min=177, max=2472, avg=683.15, stdev=887.35 lat (msec): min=181, max=2472, avg=684.04, stdev=886.79 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 456], | 70.00th=[ 514], 80.00th=[ 514], 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= 1973, max= 2942, per=45.60%, avg=2236.25, stdev=471.02, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=8.45%, ctx=195, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148798: Fri Apr 3 02:34:32 2026 read: IOPS=1, BW=1046KiB/s (1071kB/s)(5120KiB/4896msec) clat (msec): min=2, max=233, avg=147.17, stdev=90.36 lat (msec): min=2, max=233, avg=147.17, stdev=90.36 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 4055, max= 4079, per=100.00%, avg=4067.00, stdev=16.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1464KiB/s (1499kB/s)(7168KiB/4896msec); 0 zone resets clat (msec): min=112, max=2746, avg=590.26, stdev=962.77 lat (msec): min=112, max=2746, avg=590.34, stdev=962.76 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 131], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 567], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 1486, max= 5919, per=77.57%, avg=3804.00, stdev=2223.46, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 lat (msec) : 4=8.33%, 250=75.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.58%, ctx=142, 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=3503KiB/s (3587kB/s), 395KiB/s-1226KiB/s (404kB/s-1256kB/s), io=20.0MiB (20.0MB), run=4896-5846msec WRITE: bw=4905KiB/s (5022kB/s), 876KiB/s-1975KiB/s (897kB/s-2022kB/s), io=28.0MiB (29.4MB), run=4896-5846msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148800: Fri Apr 3 02:34:32 2026 read: IOPS=1, BW=1197KiB/s (1226kB/s)(7168KiB/5986msec) clat (msec): min=52, max=3014, avg=593.07, stdev=1086.72 lat (msec): min=52, max=3014, avg=593.07, stdev=1086.72 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 71], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 82], 60.00th=[ 236], | 70.00th=[ 236], 80.00th=[ 617], 90.00th=[ 3004], 95.00th=[ 3004], | 99.00th=[ 3004], 99.50th=[ 3004], 99.90th=[ 3004], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 1756, max= 4096, per=72.48%, avg=2479.50, stdev=1085.58, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=0, BW=855KiB/s (876kB/s)(5120KiB/5986msec); 0 zone resets clat (msec): min=105, max=773, avg=335.87, stdev=265.17 lat (msec): min=105, max=773, avg=335.95, stdev=265.17 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 2048, max= 4063, per=63.80%, avg=3055.50, stdev=1424.82, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 lat (msec) : 100=33.33%, 250=25.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=3.19%, ctx=56, 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=148801: Fri Apr 3 02:34:32 2026 read: IOPS=0, BW=378KiB/s (387kB/s)(2048KiB/5417msec) clat (msec): min=60, max=109, avg=84.93, stdev=34.34 lat (msec): min=60, max=109, avg=84.93, stdev=34.34 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 61], | 30.00th=[ 61], 40.00th=[ 61], 50.00th=[ 61], 60.00th=[ 110], | 70.00th=[ 110], 80.00th=[ 110], 90.00th=[ 110], 95.00th=[ 110], | 99.00th=[ 110], 99.50th=[ 110], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 1759, max= 2043, per=55.57%, avg=1901.00, stdev=200.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1890KiB/s (1936kB/s)(10.0MiB/5417msec); 0 zone resets clat (msec): min=86, max=2484, avg=513.24, stdev=719.61 lat (msec): min=86, max=2485, avg=513.39, stdev=719.57 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 292], | 70.00th=[ 393], 80.00th=[ 414], 90.00th=[ 760], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 2023, max= 6131, per=68.19%, avg=3265.40, stdev=1831.58, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 1000=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=3.73%, 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=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=148802: Fri Apr 3 02:34:32 2026 read: IOPS=1, BW=1077KiB/s (1103kB/s)(6144KiB/5706msec) clat (msec): min=55, max=243, avg=144.73, stdev=77.81 lat (msec): min=55, max=243, avg=144.73, stdev=77.81 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 80], | 30.00th=[ 80], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 148], | 70.00th=[ 230], 80.00th=[ 230], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 2007, max= 4087, per=99.20%, avg=3393.67, stdev=1200.89, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1077KiB/s (1103kB/s)(6144KiB/5706msec); 0 zone resets clat (msec): min=192, max=2535, avg=775.73, stdev=885.58 lat (msec): min=192, max=2535, avg=775.82, stdev=885.59 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 451], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 1635, max= 2043, per=41.00%, avg=1963.67, stdev=161.58, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.58%, ctx=103, 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=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=148803: Fri Apr 3 02:34:32 2026 read: IOPS=0, BW=930KiB/s (952kB/s)(5120KiB/5505msec) clat (msec): min=60, max=144, avg=90.33, stdev=33.04 lat (msec): min=60, max=144, avg=90.33, stdev=33.04 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 68], 40.00th=[ 68], 50.00th=[ 84], 60.00th=[ 84], | 70.00th=[ 95], 80.00th=[ 95], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 2043, max= 6131, per=100.00%, avg=4087.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1302KiB/s (1333kB/s)(7168KiB/5505msec); 0 zone resets clat (msec): min=168, max=2710, avg=707.66, stdev=908.15 lat (msec): min=168, max=2710, avg=707.81, stdev=908.14 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 226], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 284], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 743], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 1802, max= 4087, per=51.78%, avg=2479.75, stdev=1076.21, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=33.33%, 250=33.33%, 500=8.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=3.07%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3421KiB/s (3503kB/s), 378KiB/s-1197KiB/s (387kB/s-1226kB/s), io=20.0MiB (20.0MB), run=5417-5986msec WRITE: bw=4790KiB/s (4905kB/s), 855KiB/s-1890KiB/s (876kB/s-1936kB/s), io=28.0MiB (29.4MB), run=5417-5986msec 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=148810: Fri Apr 3 02:34:44 2026 read: IOPS=1, BW=5227KiB/s (5352kB/s)(12.0MiB/2351msec) clat (msec): min=688, max=825, avg=763.24, stdev=69.65 lat (msec): min=688, max=825, avg=763.24, stdev=69.65 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=16.89%, ctx=349, 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=148812: Fri Apr 3 02:34:44 2026 read: IOPS=0, BW=1366KiB/s (1399kB/s)(4096KiB/2999msec) clat (nsec): min=598785k, max=598785k, avg=598784817.00, stdev= 0.00 lat (nsec): min=598787k, max=598787k, avg=598787085.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 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= 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=2732KiB/s (2797kB/s)(8192KiB/2999msec); 0 zone resets clat (msec): min=686, max=1611, avg=1148.97, stdev=654.34 lat (msec): min=687, max=1613, avg=1150.18, stdev=654.87 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=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8192, max= 8192, per=74.98%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.34%, ctx=191, 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=148813: Fri Apr 3 02:34:44 2026 write: IOPS=1, BW=4676KiB/s (4788kB/s)(12.0MiB/2628msec); 0 zone resets clat (msec): min=457, max=1166, avg=855.36, stdev=362.48 lat (msec): min=457, max=1167, avg=855.80, stdev=362.76 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8143, max= 8143, per=74.53%, 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=0.00%, sys=6.81%, ctx=61, 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=148816: Fri Apr 3 02:34:44 2026 write: IOPS=1, BW=6444KiB/s (6598kB/s)(12.0MiB/1907msec); 0 zone resets clat (msec): min=271, max=867, avg=619.38, stdev=310.21 lat (msec): min=271, max=868, avg=620.04, stdev=310.64 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8143, max= 8143, per=74.53%, 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%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=10.28%, ctx=73, 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=5463KiB/s (5594kB/s), 1366KiB/s-5227KiB/s (1399kB/s-5352kB/s), io=16.0MiB (16.8MB), run=2351-2999msec WRITE: bw=10.7MiB/s (11.2MB/s), 2732KiB/s-6444KiB/s (2797kB/s-6598kB/s), io=32.0MiB (33.6MB), run=1907-2999msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148811: Fri Apr 3 02:34:45 2026 read: IOPS=0, BW=3986KiB/s (4081kB/s)(12.0MiB/3083msec) clat (msec): min=307, max=1630, avg=1011.61, stdev=665.67 lat (msec): min=307, max=1630, avg=1011.61, stdev=665.67 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.08%, ctx=45, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148814: Fri Apr 3 02:34:45 2026 read: IOPS=0, BW=1188KiB/s (1216kB/s)(4096KiB/3448msec) clat (nsec): min=1229.2M, max=1229.2M, avg=1229246316.00, stdev= 0.00 lat (nsec): min=1229.2M, max=1229.2M, avg=1229247191.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2376KiB/s (2433kB/s)(8192KiB/3448msec); 0 zone resets clat (msec): min=771, max=1396, avg=1083.76, stdev=441.91 lat (msec): min=772, max=1396, avg=1084.62, stdev=441.16 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8192, max= 8192, per=86.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.06%, ctx=51, 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=148815: Fri Apr 3 02:34:45 2026 write: IOPS=0, BW=3540KiB/s (3625kB/s)(12.0MiB/3471msec); 0 zone resets clat (msec): min=277, max=1602, avg=1114.16, stdev=728.36 lat (msec): min=277, max=1603, avg=1114.70, stdev=728.53 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8192, max= 8192, per=86.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.34%, ctx=62, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148817: Fri Apr 3 02:34:45 2026 write: IOPS=1, BW=4361KiB/s (4465kB/s)(12.0MiB/2818msec); 0 zone resets clat (msec): min=293, max=1488, avg=896.40, stdev=597.72 lat (msec): min=293, max=1489, avg=896.74, stdev=597.75 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8062, max= 8126, per=85.74%, avg=8094.00, stdev=45.25, 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=4.47%, 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=4752KiB/s (4866kB/s), 1188KiB/s-3986KiB/s (1216kB/s-4081kB/s), io=16.0MiB (16.8MB), run=3083-3448msec WRITE: bw=9441KiB/s (9667kB/s), 2376KiB/s-4361KiB/s (2433kB/s-4465kB/s), io=32.0MiB (33.6MB), run=2818-3471msec