== sanity test 398b: DIO and buffer IO race ============== 07:43:50 (1787399030) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.74281 s, 5.8 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=178408: Sat Aug 22 07:46:51 2026 read: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5992KiB/158348msec) clat (usec): min=39, max=359457, avg=58828.87, stdev=39451.85 lat (usec): min=39, max=359459, avg=58845.25, stdev=39454.26 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 13304], 10.00th=[ 19792], 20.00th=[ 28705], | 30.00th=[ 36439], 40.00th=[ 43779], 50.00th=[ 51119], 60.00th=[ 59507], | 70.00th=[ 68682], 80.00th=[ 82314], 90.00th=[106431], 95.00th=[131597], | 99.00th=[191890], 99.50th=[223347], 99.90th=[329253], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 103, per=24.89%, avg=37.59, stdev=16.32, samples=309 iops : min= 1, max= 25, avg= 8.71, stdev= 4.10, samples=309 write: IOPS=9, BW=39.8KiB/s (40.7kB/s)(6296KiB/158348msec); 0 zone resets clat (usec): min=1216, max=827969, avg=44236.12, stdev=48845.14 lat (usec): min=1217, max=827971, avg=44239.27, stdev=48844.96 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1598], 10.00th=[ 2802], 20.00th=[ 5997], | 30.00th=[ 12256], 40.00th=[ 23200], 50.00th=[ 31589], 60.00th=[ 42206], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[106431], 95.00th=[130548], | 99.00th=[191890], 99.50th=[223347], 99.90th=[400557], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 110, per=25.02%, avg=39.54, stdev=19.47, samples=309 iops : min= 1, max= 27, avg= 9.20, stdev= 4.90, samples=309 lat (usec) : 50=0.13%, 100=1.50%, 250=0.16%, 500=0.07% lat (msec) : 2=3.84%, 4=3.48%, 10=6.90%, 20=7.88%, 50=33.72% lat (msec) : 100=30.76%, 250=11.30%, 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=4.54%, ctx=7003, 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=178409: Sat Aug 22 07:46:51 2026 read: IOPS=9, BW=38.5KiB/s (39.5kB/s)(5940KiB/154117msec) clat (usec): min=42, max=444308, avg=57207.99, stdev=37235.82 lat (usec): min=43, max=444310, avg=57215.36, stdev=37239.16 clat percentiles (usec): | 1.00th=[ 71], 5.00th=[ 15795], 10.00th=[ 21890], 20.00th=[ 29492], | 30.00th=[ 36963], 40.00th=[ 42730], 50.00th=[ 50070], 60.00th=[ 57410], | 70.00th=[ 66847], 80.00th=[ 79168], 90.00th=[100140], 95.00th=[122160], | 99.00th=[183501], 99.50th=[229639], 99.90th=[287310], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 7, max= 86, per=25.40%, avg=38.35, stdev=16.63, samples=300 iops : min= 1, max= 21, avg= 8.91, stdev= 4.19, samples=300 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6348KiB/154117msec); 0 zone resets clat (usec): min=1096, max=1040.5k, avg=43234.43, stdev=50781.16 lat (usec): min=1097, max=1040.5k, avg=43243.37, stdev=50784.09 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1549], 10.00th=[ 2343], | 20.00th=[ 5342], 30.00th=[ 9896], 40.00th=[ 19792], | 50.00th=[ 31065], 60.00th=[ 42206], 70.00th=[ 55837], | 80.00th=[ 74974], 90.00th=[ 100140], 95.00th=[ 122160], | 99.00th=[ 187696], 99.50th=[ 219153], 99.90th=[ 505414], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 127, per=26.08%, avg=41.20, stdev=19.62, samples=298 iops : min= 1, max= 31, avg= 9.62, stdev= 4.92, samples=298 lat (usec) : 50=0.07%, 100=1.01%, 250=0.13%, 750=0.07%, 1000=0.03% lat (msec) : 2=4.46%, 4=3.97%, 10=7.26%, 20=7.49%, 50=33.59% lat (msec) : 100=31.71%, 250=9.90%, 500=0.26%, 750=0.03%, 2000=0.03% cpu : usr=0.08%, sys=4.51%, ctx=6719, 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=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=178410: Sat Aug 22 07:46:51 2026 read: IOPS=9, BW=39.4KiB/s (40.4kB/s)(6028KiB/152891msec) clat (usec): min=38, max=890578, avg=55754.01, stdev=41038.86 lat (usec): min=38, max=890579, avg=55761.20, stdev=41038.93 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 15008], 10.00th=[ 21627], 20.00th=[ 28443], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 46924], 60.00th=[ 55837], | 70.00th=[ 64750], 80.00th=[ 78119], 90.00th=[101188], 95.00th=[122160], | 99.00th=[173016], 99.50th=[200279], 99.90th=[325059], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 87, per=25.82%, avg=38.98, stdev=16.58, samples=300 iops : min= 1, max= 21, avg= 9.07, stdev= 4.17, samples=300 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6260KiB/152891msec); 0 zone resets clat (usec): min=1096, max=406863, avg=43685.99, stdev=45299.65 lat (usec): min=1098, max=406865, avg=43692.18, stdev=45298.78 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1598], 10.00th=[ 2540], 20.00th=[ 5800], | 30.00th=[ 11207], 40.00th=[ 21627], 50.00th=[ 30540], 60.00th=[ 42730], | 70.00th=[ 56361], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[129500], | 99.00th=[191890], 99.50th=[254804], 99.90th=[329253], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 103, per=25.70%, avg=40.60, stdev=18.37, samples=299 iops : min= 1, max= 25, avg= 9.47, stdev= 4.62, samples=299 lat (usec) : 50=0.10%, 100=1.53%, 250=0.20%, 750=0.03% lat (msec) : 2=3.91%, 4=4.20%, 10=6.45%, 20=7.13%, 50=35.94% lat (msec) : 100=30.08%, 250=10.12%, 500=0.29%, 1000=0.03% cpu : usr=0.07%, sys=4.50%, ctx=6774, 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=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=178411: Sat Aug 22 07:46:51 2026 read: IOPS=9, BW=39.4KiB/s (40.3kB/s)(6052KiB/153715msec) clat (usec): min=36, max=1046.9k, avg=56726.81, stdev=45834.90 lat (usec): min=36, max=1046.9k, avg=56729.21, stdev=45834.53 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 8979], 10.00th=[ 20055], | 20.00th=[ 28443], 30.00th=[ 34341], 40.00th=[ 41157], | 50.00th=[ 47449], 60.00th=[ 55837], 70.00th=[ 66323], | 80.00th=[ 80217], 90.00th=[ 103285], 95.00th=[ 127402], | 99.00th=[ 189793], 99.50th=[ 210764], 99.90th=[ 417334], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 87, per=25.87%, avg=39.06, stdev=16.31, samples=301 iops : min= 1, max= 21, avg= 9.09, stdev= 4.09, samples=301 write: IOPS=10, BW=40.6KiB/s (41.5kB/s)(6236KiB/153715msec); 0 zone resets clat (usec): min=1173, max=367281, avg=43220.10, stdev=45172.16 lat (usec): min=1174, max=367282, avg=43222.12, stdev=45172.36 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1565], 10.00th=[ 2278], 20.00th=[ 5407], | 30.00th=[ 9896], 40.00th=[ 20317], 50.00th=[ 30802], 60.00th=[ 42206], | 70.00th=[ 54789], 80.00th=[ 76022], 90.00th=[104334], 95.00th=[127402], | 99.00th=[214959], 99.50th=[231736], 99.90th=[358613], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 7, max= 101, per=25.40%, avg=40.14, stdev=19.02, samples=302 iops : min= 1, max= 25, avg= 9.35, stdev= 4.78, samples=302 lat (usec) : 50=0.16%, 100=1.66%, 250=0.10%, 500=0.07%, 1000=0.07% lat (msec) : 2=4.65%, 4=3.35%, 10=7.75%, 20=7.39%, 50=35.16% lat (msec) : 100=28.26%, 250=11.10%, 500=0.26%, 2000=0.03% cpu : usr=0.08%, sys=4.46%, ctx=6727, 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=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=152KiB/s (155kB/s), 37.8KiB/s-39.4KiB/s (38.7kB/s-40.4kB/s), io=23.4MiB (24.6MB), run=152891-158348msec WRITE: bw=159KiB/s (163kB/s), 39.8KiB/s-41.2KiB/s (40.7kB/s-42.2kB/s), io=24.6MiB (25.7MB), run=152891-158348msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178413: Sat Aug 22 07:47:32 2026 read: IOPS=7, BW=30.2KiB/s (30.0kB/s)(5992KiB/198162msec) clat (msec): min=6, max=918, avg=53.23, stdev=53.81 lat (msec): min=6, max=918, avg=53.23, stdev=53.82 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 78], 90.00th=[ 122], 95.00th=[ 153], | 99.00th=[ 245], 99.50th=[ 262], 99.90th=[ 542], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 119, per=25.82%, avg=30.99, stdev=22.09, samples=373 iops : min= 1, max= 29, avg= 7.05, stdev= 5.59, samples=373 write: IOPS=7, BW=31.8KiB/s (32.5kB/s)(6296KiB/198162msec); 0 zone resets clat (msec): min=10, max=488, avg=75.08, stdev=57.99 lat (msec): min=10, max=488, avg=75.08, stdev=57.98 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 85], 80.00th=[ 113], 90.00th=[ 153], 95.00th=[ 190], | 99.00th=[ 279], 99.50th=[ 330], 99.90th=[ 468], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 120, per=25.24%, avg=31.80, stdev=21.46, samples=382 iops : min= 1, max= 30, avg= 7.25, stdev= 5.42, samples=382 lat (msec) : 10=1.04%, 20=10.81%, 50=43.42%, 100=25.36%, 250=18.16% lat (msec) : 500=1.14%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=1.88%, ctx=4925, 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=178414: Sat Aug 22 07:47:32 2026 read: IOPS=7, BW=29.9KiB/s (30.6kB/s)(5940KiB/198528msec) clat (msec): min=4, max=1062, avg=54.01, stdev=57.68 lat (msec): min=4, max=1062, avg=54.02, stdev=57.68 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 77], 90.00th=[ 124], 95.00th=[ 159], | 99.00th=[ 251], 99.50th=[ 279], 99.90th=[ 542], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 128, per=25.93%, avg=31.11, stdev=22.46, samples=369 iops : min= 1, max= 32, avg= 7.08, stdev= 5.67, samples=369 write: IOPS=7, BW=31.0KiB/s (32.7kB/s)(6348KiB/198528msec); 0 zone resets clat (msec): min=8, max=484, avg=74.43, stdev=56.25 lat (msec): min=8, max=484, avg=74.44, stdev=56.25 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 38], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 88], 80.00th=[ 112], 90.00th=[ 150], 95.00th=[ 186], | 99.00th=[ 255], 99.50th=[ 334], 99.90th=[ 460], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 127, per=25.43%, avg=32.04, stdev=21.39, samples=383 iops : min= 1, max= 31, avg= 7.32, stdev= 5.41, samples=383 lat (msec) : 10=1.01%, 20=11.36%, 50=43.95%, 100=24.71%, 250=17.90% lat (msec) : 500=1.01%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.90%, ctx=5067, 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=178415: Sat Aug 22 07:47:32 2026 read: IOPS=7, BW=30.6KiB/s (31.3kB/s)(6028KiB/197035msec) clat (msec): min=6, max=445, avg=52.45, stdev=47.79 lat (msec): min=6, max=445, avg=52.45, stdev=47.79 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 81], 90.00th=[ 118], 95.00th=[ 150], | 99.00th=[ 209], 99.50th=[ 257], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 127, per=26.24%, avg=31.49, stdev=22.17, samples=370 iops : min= 1, max= 31, avg= 7.17, stdev= 5.59, samples=370 write: IOPS=7, BW=31.8KiB/s (32.5kB/s)(6260KiB/197035msec); 0 zone resets clat (msec): min=11, max=1081, avg=75.29, stdev=60.18 lat (msec): min=11, max=1081, avg=75.29, stdev=60.18 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 88], 80.00th=[ 112], 90.00th=[ 150], 95.00th=[ 186], | 99.00th=[ 271], 99.50th=[ 305], 99.90th=[ 510], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 111, per=25.53%, avg=32.17, stdev=20.72, samples=376 iops : min= 1, max= 27, avg= 7.34, stdev= 5.23, samples=376 lat (msec) : 10=1.20%, 20=10.12%, 50=43.82%, 100=25.33%, 250=18.52% lat (msec) : 500=0.94%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.98%, ctx=5019, 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=178416: Sat Aug 22 07:47:32 2026 read: IOPS=7, BW=30.6KiB/s (31.3kB/s)(6052KiB/197721msec) clat (msec): min=7, max=530, avg=52.66, stdev=49.67 lat (msec): min=7, max=530, avg=52.66, stdev=49.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 58], 80.00th=[ 78], 90.00th=[ 117], 95.00th=[ 155], | 99.00th=[ 234], 99.50th=[ 284], 99.90th=[ 401], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 7, max= 125, per=26.28%, avg=31.53, stdev=22.06, samples=370 iops : min= 1, max= 31, avg= 7.19, stdev= 5.57, samples=370 write: IOPS=7, BW=31.5KiB/s (32.3kB/s)(6236KiB/197721msec); 0 zone resets clat (msec): min=12, max=1074, avg=75.57, stdev=61.93 lat (msec): min=12, max=1074, avg=75.58, stdev=61.93 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 67], | 70.00th=[ 85], 80.00th=[ 113], 90.00th=[ 150], 95.00th=[ 182], | 99.00th=[ 288], 99.50th=[ 334], 99.90th=[ 523], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 119, per=25.22%, avg=31.77, stdev=20.90, samples=378 iops : min= 1, max= 29, avg= 7.24, stdev= 5.26, samples=378 lat (msec) : 10=1.04%, 20=11.04%, 50=42.45%, 100=26.56%, 250=17.61% lat (msec) : 500=1.20%, 750=0.07%, 2000=0.03% cpu : usr=0.06%, sys=1.87%, ctx=4784, 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=121KiB/s (124kB/s), 29.9KiB/s-30.6KiB/s (30.6kB/s-31.3kB/s), io=23.4MiB (24.6MB), run=197035-198528msec WRITE: bw=127KiB/s (130kB/s), 31.5KiB/s-31.0KiB/s (32.3kB/s-32.7kB/s), io=24.6MiB (25.7MB), run=197035-198528msec 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=178462: Sat Aug 22 07:48:25 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(5920KiB/39664msec) clat (usec): min=44, max=263318, avg=58003.14, stdev=38982.38 lat (usec): min=45, max=263319, avg=58004.67, stdev=38982.37 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 74], 10.00th=[ 17433], 20.00th=[ 29492], | 30.00th=[ 35390], 40.00th=[ 44303], 50.00th=[ 52167], 60.00th=[ 59507], | 70.00th=[ 69731], 80.00th=[ 81265], 90.00th=[107480], 95.00th=[127402], | 99.00th=[193987], 99.50th=[227541], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 30, max= 318, per=25.08%, avg=151.23, stdev=63.27, samples=77 iops : min= 1, max= 19, avg= 8.68, stdev= 4.03, samples=77 write: IOPS=10, BW=161KiB/s (164kB/s)(6368KiB/39664msec); 0 zone resets clat (usec): min=1579, max=273505, avg=45429.76, stdev=44272.78 lat (usec): min=1582, max=273507, avg=45434.84, stdev=44271.16 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2933], 10.00th=[ 4883], 20.00th=[ 8029], | 30.00th=[ 13435], 40.00th=[ 21890], 50.00th=[ 31589], 60.00th=[ 41157], | 70.00th=[ 55837], 80.00th=[ 80217], 90.00th=[108528], 95.00th=[133694], | 99.00th=[217056], 99.50th=[223347], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 60, max= 381, per=25.58%, avg=162.45, stdev=68.62, samples=77 iops : min= 3, max= 23, avg= 9.39, stdev= 4.38, samples=77 lat (usec) : 50=0.26%, 100=2.73%, 250=0.52%, 500=0.13% lat (msec) : 2=1.17%, 4=2.86%, 10=9.11%, 20=7.55%, 50=32.16% lat (msec) : 100=30.99%, 250=12.24%, 500=0.26% cpu : usr=0.09%, sys=4.80%, ctx=1810, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178463: Sat Aug 22 07:48:25 2026 read: IOPS=9, BW=149KiB/s (152kB/s)(5744KiB/38580msec) clat (usec): min=48, max=281480, avg=59852.22, stdev=38211.91 lat (usec): min=48, max=281482, avg=59855.00, stdev=38212.30 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 145], 10.00th=[ 23200], 20.00th=[ 31327], | 30.00th=[ 38536], 40.00th=[ 46924], 50.00th=[ 55313], 60.00th=[ 62129], | 70.00th=[ 69731], 80.00th=[ 81265], 90.00th=[106431], 95.00th=[131597], | 99.00th=[196084], 99.50th=[278922], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 256, per=24.56%, avg=148.11, stdev=57.71, samples=75 iops : min= 1, max= 16, avg= 8.49, stdev= 3.61, samples=75 write: IOPS=10, BW=170KiB/s (174kB/s)(6544KiB/38580msec); 0 zone resets clat (usec): min=1389, max=297949, avg=41121.93, stdev=41038.88 lat (usec): min=1390, max=297951, avg=41133.33, stdev=41031.79 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 5], 20.00th=[ 8], | 30.00th=[ 14], 40.00th=[ 22], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 68], 90.00th=[ 94], 95.00th=[ 118], | 99.00th=[ 194], 99.50th=[ 205], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 472, per=26.49%, avg=168.20, stdev=80.39, samples=75 iops : min= 1, max= 29, avg= 9.76, stdev= 5.12, samples=75 lat (usec) : 50=0.13%, 100=1.82%, 250=0.39%, 500=0.13% lat (msec) : 2=0.65%, 4=3.91%, 10=9.11%, 20=8.33%, 50=33.85% lat (msec) : 100=32.16%, 250=9.11%, 500=0.39% cpu : usr=0.07%, sys=5.03%, ctx=1747, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178464: Sat Aug 22 07:48:25 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(6256KiB/38513msec) clat (usec): min=47, max=306616, avg=56868.52, stdev=38943.43 lat (usec): min=48, max=306617, avg=56871.36, stdev=38944.11 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 76], 10.00th=[ 17695], 20.00th=[ 29754], | 30.00th=[ 37487], 40.00th=[ 45351], 50.00th=[ 51119], 60.00th=[ 60031], | 70.00th=[ 67634], 80.00th=[ 80217], 90.00th=[101188], 95.00th=[126354], | 99.00th=[198181], 99.50th=[231736], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 30, max= 320, per=27.03%, avg=162.97, stdev=73.09, samples=75 iops : min= 1, max= 20, avg= 9.41, stdev= 4.65, samples=75 write: IOPS=9, BW=157KiB/s (160kB/s)(6032KiB/38513msec); 0 zone resets clat (usec): min=1654, max=219905, avg=42501.84, stdev=41046.01 lat (usec): min=1656, max=219909, avg=42510.10, stdev=41041.58 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 5], 20.00th=[ 8], | 30.00th=[ 13], 40.00th=[ 22], 50.00th=[ 30], 60.00th=[ 41], | 70.00th=[ 54], 80.00th=[ 74], 90.00th=[ 102], 95.00th=[ 128], | 99.00th=[ 182], 99.50th=[ 203], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 30, max= 347, per=24.28%, avg=154.19, stdev=73.91, samples=75 iops : min= 1, max= 21, avg= 8.87, stdev= 4.65, samples=75 lat (usec) : 50=0.13%, 100=3.12%, 250=0.91%, 500=0.13%, 750=0.13% lat (msec) : 2=0.39%, 4=4.56%, 10=7.81%, 20=7.81%, 50=32.81% lat (msec) : 100=31.25%, 250=10.81%, 500=0.13% cpu : usr=0.08%, sys=5.33%, ctx=1867, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178465: Sat Aug 22 07:48:25 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(6032KiB/37984msec) clat (usec): min=36, max=352015, avg=53256.51, stdev=38755.07 lat (usec): min=36, max=352018, avg=53259.60, stdev=38758.37 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 75], 10.00th=[ 611], 20.00th=[ 26870], | 30.00th=[ 32900], 40.00th=[ 40109], 50.00th=[ 48497], 60.00th=[ 57410], | 70.00th=[ 67634], 80.00th=[ 76022], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[183501], 99.50th=[223347], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 31, max= 351, per=26.46%, avg=159.53, stdev=71.37, samples=73 iops : min= 1, max= 21, avg= 9.21, stdev= 4.52, samples=73 write: IOPS=10, BW=165KiB/s (169kB/s)(6256KiB/37984msec); 0 zone resets clat (usec): min=1697, max=308919, avg=45036.32, stdev=45191.34 lat (usec): min=1699, max=308922, avg=45057.70, stdev=45191.14 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2147], 10.00th=[ 4359], 20.00th=[ 7832], | 30.00th=[ 12649], 40.00th=[ 20055], 50.00th=[ 32113], 60.00th=[ 41157], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[109577], 95.00th=[135267], | 99.00th=[189793], 99.50th=[223347], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 62, max= 316, per=26.25%, avg=166.70, stdev=59.53, samples=73 iops : min= 3, max= 19, avg= 9.66, stdev= 3.77, samples=73 lat (usec) : 50=0.13%, 100=3.78%, 250=0.65%, 500=0.13%, 750=0.39% lat (msec) : 2=1.43%, 4=3.91%, 10=7.94%, 20=8.85%, 50=32.16% lat (msec) : 100=29.82%, 250=10.55%, 500=0.26% cpu : usr=0.08%, sys=5.04%, ctx=1772, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=604KiB/s (618kB/s), 149KiB/s-162KiB/s (152kB/s-166kB/s), io=23.4MiB (24.5MB), run=37984-39664msec WRITE: bw=635KiB/s (651kB/s), 157KiB/s-170KiB/s (160kB/s-174kB/s), io=24.6MiB (25.8MB), run=37984-39664msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178467: Sat Aug 22 07:48:37 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(5920KiB/50583msec) clat (msec): min=7, max=279, avg=54.71, stdev=50.21 lat (msec): min=7, max=279, avg=54.76, stdev=50.20 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 136], 95.00th=[ 178], | 99.00th=[ 232], 99.50th=[ 243], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 351, per=25.48%, avg=119.49, stdev=79.56, samples=96 iops : min= 1, max= 21, avg= 6.67, stdev= 5.01, samples=96 write: IOPS=7, BW=126KiB/s (129kB/s)(6368KiB/50583msec); 0 zone resets clat (msec): min=15, max=387, avg=75.96, stdev=55.19 lat (msec): min=15, max=387, avg=75.96, stdev=55.19 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 49], 50.00th=[ 59], 60.00th=[ 72], | 70.00th=[ 91], 80.00th=[ 112], 90.00th=[ 148], 95.00th=[ 186], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 447, per=26.48%, avg=130.53, stdev=82.26, samples=95 iops : min= 1, max= 27, avg= 7.36, stdev= 5.18, samples=95 lat (msec) : 10=0.52%, 20=8.33%, 50=45.96%, 100=25.65%, 250=18.62% lat (msec) : 500=0.91% cpu : usr=0.08%, sys=1.95%, ctx=1265, 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=178468: Sat Aug 22 07:48:37 2026 read: IOPS=7, BW=113KiB/s (115kB/s)(5744KiB/51042msec) clat (msec): min=9, max=247, avg=52.75, stdev=49.46 lat (msec): min=9, max=247, avg=52.75, stdev=49.46 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 73], 90.00th=[ 124], 95.00th=[ 184], | 99.00th=[ 241], 99.50th=[ 245], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 29, max= 447, per=25.75%, avg=120.76, stdev=87.15, samples=92 iops : min= 1, max= 27, avg= 6.74, stdev= 5.48, samples=92 write: IOPS=8, BW=128KiB/s (131kB/s)(6544KiB/51042msec); 0 zone resets clat (msec): min=14, max=416, avg=78.25, stdev=60.47 lat (msec): min=14, max=416, avg=78.25, stdev=60.47 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 91], 80.00th=[ 115], 90.00th=[ 157], 95.00th=[ 207], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 31, max= 447, per=25.96%, avg=128.00, stdev=85.44, samples=99 iops : min= 1, max= 27, avg= 7.20, stdev= 5.36, samples=99 lat (msec) : 10=0.13%, 20=11.33%, 50=41.15%, 100=27.60%, 250=18.62% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.94%, ctx=1247, 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=178469: Sat Aug 22 07:48:37 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/49893msec) clat (msec): min=6, max=242, avg=52.14, stdev=44.08 lat (msec): min=6, max=242, avg=52.16, stdev=44.09 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 127], 95.00th=[ 150], | 99.00th=[ 203], 99.50th=[ 241], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 29, max= 415, per=27.63%, avg=129.58, stdev=90.95, samples=95 iops : min= 1, max= 25, avg= 7.28, stdev= 5.73, samples=95 write: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49893msec); 0 zone resets clat (msec): min=14, max=415, avg=78.04, stdev=59.82 lat (msec): min=14, max=415, avg=78.05, stdev=59.83 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 38], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 73], | 70.00th=[ 89], 80.00th=[ 113], 90.00th=[ 161], 95.00th=[ 203], | 99.00th=[ 296], 99.50th=[ 376], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 31, max= 351, per=24.57%, avg=121.15, stdev=78.67, samples=97 iops : min= 1, max= 21, avg= 6.76, stdev= 4.93, samples=97 lat (msec) : 10=0.39%, 20=10.03%, 50=44.27%, 100=26.43%, 250=18.10% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.90%, ctx=1237, 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=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=178470: Sat Aug 22 07:48:37 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6032KiB/50285msec) clat (msec): min=7, max=323, avg=53.85, stdev=47.42 lat (msec): min=7, max=323, avg=53.85, stdev=47.42 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 85], 90.00th=[ 122], 95.00th=[ 155], | 99.00th=[ 224], 99.50th=[ 279], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 30, max= 510, per=26.67%, avg=125.10, stdev=87.81, samples=94 iops : min= 1, max= 31, avg= 7.02, stdev= 5.52, samples=94 write: IOPS=7, BW=124KiB/s (127kB/s)(6256KiB/50285msec); 0 zone resets clat (msec): min=15, max=321, avg=76.50, stdev=53.08 lat (msec): min=15, max=321, avg=76.50, stdev=53.08 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 73], | 70.00th=[ 90], 80.00th=[ 110], 90.00th=[ 148], 95.00th=[ 190], | 99.00th=[ 284], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 383, per=26.07%, avg=128.51, stdev=80.28, samples=96 iops : min= 1, max= 23, avg= 7.23, stdev= 5.05, samples=96 lat (msec) : 10=0.26%, 20=11.33%, 50=40.10%, 100=29.30%, 250=17.71% lat (msec) : 500=1.30% cpu : usr=0.05%, sys=1.93%, ctx=1203, 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=469KiB/s (481kB/s), 113KiB/s-125KiB/s (115kB/s-128kB/s), io=23.4MiB (24.5MB), run=49893-51042msec WRITE: bw=494KiB/s (506kB/s), 121KiB/s-128KiB/s (124kB/s-131kB/s), io=24.6MiB (25.8MB), run=49893-51042msec 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=178488: Sat Aug 22 07:48:54 2026 read: IOPS=1, BW=1528KiB/s (1564kB/s)(7168KiB/4692msec) clat (msec): min=180, max=360, avg=282.45, stdev=69.13 lat (msec): min=180, max=360, avg=282.45, stdev=69.13 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 197], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 305], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 334], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1954, max= 4231, per=59.44%, avg=2535.25, stdev=1130.56, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1091KiB/s (1117kB/s)(5120KiB/4692msec); 0 zone resets clat (msec): min=259, max=1181, avg=537.96, stdev=391.35 lat (msec): min=259, max=1181, avg=538.17, stdev=391.29 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1615, max= 3871, per=39.35%, avg=2350.25, stdev=1026.61, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=16.67%, 500=66.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.83%, ctx=238, 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=178489: Sat Aug 22 07:48:54 2026 read: IOPS=0, BW=427KiB/s (437kB/s)(2048KiB/4801msec) clat (msec): min=11, max=276, avg=144.20, stdev=187.50 lat (msec): min=11, max=276, avg=144.20, stdev=187.50 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 12], 10.00th=[ 12], 20.00th=[ 12], | 30.00th=[ 12], 40.00th=[ 12], 50.00th=[ 12], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 275], 95.00th=[ 275], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 1477, max= 1980, per=40.53%, avg=1728.50, stdev=355.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2133KiB/s (2184kB/s)(10.0MiB/4801msec); 0 zone resets clat (msec): min=177, max=949, avg=446.36, stdev=228.05 lat (msec): min=177, max=949, avg=446.56, stdev=228.03 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 288], | 30.00th=[ 309], 40.00th=[ 334], 50.00th=[ 338], 60.00th=[ 401], | 70.00th=[ 409], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1615, max= 3961, per=36.74%, avg=2194.14, stdev=789.53, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 20=8.33%, 250=8.33%, 500=58.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=11.44%, ctx=145, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178490: Sat Aug 22 07:48:54 2026 read: IOPS=1, BW=1646KiB/s (1686kB/s)(6144KiB/3732msec) clat (usec): min=763, max=455439, avg=161281.53, stdev=194336.95 lat (usec): min=764, max=455441, avg=161283.23, stdev=194337.02 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 766], 10.00th=[ 766], 20.00th=[ 938], | 30.00th=[ 938], 40.00th=[ 6456], 50.00th=[ 6456], 60.00th=[179307], | 70.00th=[325059], 80.00th=[325059], 90.00th=[455082], 95.00th=[455082], | 99.00th=[455082], 99.50th=[455082], 99.90th=[455082], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 1980, max= 3908, per=76.27%, avg=3253.00, stdev=1102.61, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1646KiB/s (1686kB/s)(6144KiB/3732msec); 0 zone resets clat (msec): min=314, max=625, avg=460.23, stdev=131.30 lat (msec): min=315, max=626, avg=460.53, stdev=131.03 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 527], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1436, max= 1980, per=29.95%, avg=1788.40, stdev=248.82, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 1000=16.67% lat (msec) : 10=8.33%, 250=8.33%, 500=41.67%, 750=25.00% cpu : usr=0.03%, sys=10.48%, ctx=143, 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=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=178491: Sat Aug 22 07:48:54 2026 read: IOPS=1, BW=1144KiB/s (1172kB/s)(5120KiB/4475msec) clat (usec): min=685, max=528045, avg=198130.05, stdev=269492.52 lat (usec): min=687, max=528047, avg=198131.58, stdev=269492.76 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 685], | 30.00th=[ 1860], 40.00th=[ 1860], 50.00th=[ 4080], 60.00th=[ 4080], | 70.00th=[455082], 80.00th=[455082], 90.00th=[526386], 95.00th=[526386], | 99.00th=[526386], 99.50th=[526386], 99.90th=[526386], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 1980, max= 5873, per=92.06%, avg=3926.50, stdev=2752.77, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1602KiB/s (1640kB/s)(7168KiB/4475msec); 0 zone resets clat (msec): min=188, max=1031, avg=496.31, stdev=359.06 lat (msec): min=191, max=1031, avg=497.30, stdev=358.82 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 245], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 338], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 1003], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1587, max= 3923, per=47.54%, avg=2839.25, stdev=1231.85, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 10=8.33%, 250=16.67%, 500=33.33%, 750=8.33% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.92%, ctx=153, 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=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=4266KiB/s (4368kB/s), 427KiB/s-1646KiB/s (437kB/s-1686kB/s), io=20.0MiB (20.0MB), run=3732-4801msec WRITE: bw=5972KiB/s (6115kB/s), 1091KiB/s-2133KiB/s (1117kB/s-2184kB/s), io=28.0MiB (29.4MB), run=3732-4801msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178483: Sat Aug 22 07:48:55 2026 read: IOPS=1, BW=1602KiB/s (1641kB/s)(7168KiB/4474msec) clat (msec): min=102, max=497, avg=286.60, stdev=168.20 lat (msec): min=102, max=497, avg=286.60, stdev=168.20 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 113], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 253], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 443], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 1950, max= 4626, per=76.10%, avg=2646.75, stdev=1319.77, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1144KiB/s (1172kB/s)(5120KiB/4474msec); 0 zone resets clat (msec): min=142, max=856, avg=486.33, stdev=334.43 lat (msec): min=142, max=856, avg=486.46, stdev=334.42 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 2000, max= 6119, per=69.56%, avg=3387.33, stdev=2365.79, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=2.28%, ctx=49, 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=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=178484: Sat Aug 22 07:48:55 2026 read: IOPS=0, BW=348KiB/s (356kB/s)(2048KiB/5887msec) clat (msec): min=137, max=751, avg=444.17, stdev=434.24 lat (msec): min=137, max=751, avg=444.17, stdev=434.24 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1490, max= 2043, per=50.79%, avg=1766.50, stdev=391.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1739KiB/s (1781kB/s)(10.0MiB/5887msec); 0 zone resets clat (msec): min=221, max=869, avg=484.15, stdev=221.08 lat (msec): min=221, max=869, avg=484.48, stdev=220.95 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 241], | 30.00th=[ 271], 40.00th=[ 326], 50.00th=[ 447], 60.00th=[ 518], | 70.00th=[ 584], 80.00th=[ 667], 90.00th=[ 701], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1490, max= 4039, per=45.09%, avg=2196.00, stdev=766.81, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=25.00%, 500=25.00%, 750=33.33%, 1000=16.67% cpu : usr=0.03%, sys=4.62%, ctx=141, 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=178485: Sat Aug 22 07:48:55 2026 read: IOPS=1, BW=1513KiB/s (1549kB/s)(6144KiB/4061msec) clat (msec): min=143, max=1051, avg=351.19, stdev=346.79 lat (msec): min=143, max=1051, avg=351.20, stdev=346.79 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1917, max= 4079, per=96.56%, avg=3358.33, stdev=1248.23, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1513KiB/s (1549kB/s)(6144KiB/4061msec); 0 zone resets clat (msec): min=140, max=503, avg=299.44, stdev=164.56 lat (msec): min=140, max=503, avg=299.55, stdev=164.59 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 330], | 70.00th=[ 485], 80.00th=[ 485], 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= 1950, max= 4432, per=57.37%, avg=2794.00, stdev=1418.77, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.67%, ctx=66, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178486: Sat Aug 22 07:48:55 2026 read: IOPS=1, BW=1149KiB/s (1177kB/s)(5120KiB/4455msec) clat (msec): min=148, max=497, avg=246.64, stdev=145.16 lat (msec): min=148, max=497, avg=246.64, stdev=145.16 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 2011, max= 6119, per=100.00%, avg=4065.00, stdev=2904.79, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1609KiB/s (1648kB/s)(7168KiB/4455msec); 0 zone resets clat (msec): min=161, max=883, avg=443.56, stdev=294.79 lat (msec): min=161, max=883, avg=443.88, stdev=294.69 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 313], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 735], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1917, max= 4000, per=56.91%, avg=2771.50, stdev=982.47, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.60%, ctx=135, 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=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=3479KiB/s (3562kB/s), 348KiB/s-1602KiB/s (356kB/s-1641kB/s), io=20.0MiB (20.0MB), run=4061-5887msec WRITE: bw=4870KiB/s (4987kB/s), 1144KiB/s-1739KiB/s (1172kB/s-1781kB/s), io=28.0MiB (29.4MB), run=4061-5887msec 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=178499: Sat Aug 22 07:49:12 2026 read: IOPS=1, BW=5997KiB/s (6141kB/s)(12.0MiB/2049msec) clat (msec): min=537, max=698, avg=633.02, stdev=84.52 lat (msec): min=537, max=698, avg=633.03, stdev=84.52 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 8031, max= 8143, per=100.00%, avg=8087.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=17.33%, ctx=166, 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=178500: Sat Aug 22 07:49:12 2026 read: IOPS=0, BW=805KiB/s (824kB/s)(4096KiB/5089msec) clat (nsec): min=3259.1M, max=3259.1M, avg=3259079880.00, stdev= 0.00 lat (nsec): min=3259.1M, max=3259.1M, avg=3259083497.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3272], 5.00th=[ 3272], 10.00th=[ 3272], 20.00th=[ 3272], | 30.00th=[ 3272], 40.00th=[ 3272], 50.00th=[ 3272], 60.00th=[ 3272], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] 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=1610KiB/s (1648kB/s)(8192KiB/5089msec); 0 zone resets clat (msec): min=756, max=824, avg=790.57, stdev=48.46 lat (msec): min=756, max=825, avg=790.96, stdev=48.39 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 827], | 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=5.74%, ctx=455, 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=178501: Sat Aug 22 07:49:12 2026 write: IOPS=0, BW=2638KiB/s (2701kB/s)(12.0MiB/4658msec); 0 zone resets clat (msec): min=328, max=3644, avg=1490.78, stdev=1867.12 lat (msec): min=330, max=3645, avg=1492.11, stdev=1867.15 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8078, max= 8192, per=100.00%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.95%, ctx=67, 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=178502: Sat Aug 22 07:49:12 2026 write: IOPS=0, BW=2408KiB/s (2466kB/s)(12.0MiB/5102msec); 0 zone resets clat (msec): min=291, max=4156, avg=1660.33, stdev=2164.75 lat (msec): min=292, max=4156, avg=1661.12, stdev=2164.44 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 4144], 80.00th=[ 4144], 90.00th=[ 4144], 95.00th=[ 4144], | 99.00th=[ 4144], 99.50th=[ 4144], 99.90th=[ 4144], 99.95th=[ 4144], | 99.99th=[ 4144] bw ( KiB/s): min= 7501, max= 8015, per=100.00%, avg=7758.00, stdev=363.45, 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=2.57%, ctx=65, 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=3219KiB/s (3297kB/s), 805KiB/s-5997KiB/s (824kB/s-6141kB/s), io=16.0MiB (16.8MB), run=2049-5089msec WRITE: bw=6423KiB/s (6577kB/s), 1610KiB/s-2638KiB/s (1648kB/s-2701kB/s), io=32.0MiB (33.6MB), run=4658-5102msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178503: Sat Aug 22 07:49:12 2026 read: IOPS=0, BW=2369KiB/s (2426kB/s)(12.0MiB/5187msec) clat (msec): min=573, max=3729, avg=1668.31, stdev=1786.59 lat (msec): min=573, max=3730, avg=1668.53, stdev=1786.96 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 3742], 80.00th=[ 3742], 90.00th=[ 3742], 95.00th=[ 3742], | 99.00th=[ 3742], 99.50th=[ 3742], 99.90th=[ 3742], 99.95th=[ 3742], | 99.99th=[ 3742] bw ( KiB/s): min= 8110, max= 8126, per=100.00%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.10%, 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=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=178504: Sat Aug 22 07:49:12 2026 read: IOPS=0, BW=746KiB/s (764kB/s)(4096KiB/5491msec) clat (nsec): min=3964.7M, max=3964.7M, avg=3964669245.00, stdev= 0.00 lat (nsec): min=3964.7M, max=3964.7M, avg=3964670693.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3977], 5.00th=[ 3977], 10.00th=[ 3977], 20.00th=[ 3977], | 30.00th=[ 3977], 40.00th=[ 3977], 50.00th=[ 3977], 60.00th=[ 3977], | 70.00th=[ 3977], 80.00th=[ 3977], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] 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=1492KiB/s (1528kB/s)(8192KiB/5491msec); 0 zone resets clat (msec): min=626, max=657, avg=642.42, stdev=21.84 lat (msec): min=627, max=658, avg=642.82, stdev=21.88 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, 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=1.51%, ctx=36, 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=178505: Sat Aug 22 07:49:12 2026 write: IOPS=0, BW=2285KiB/s (2340kB/s)(12.0MiB/5377msec); 0 zone resets clat (msec): min=309, max=4297, avg=1737.71, stdev=2221.86 lat (msec): min=309, max=4299, avg=1739.18, stdev=2222.40 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8031, max= 8110, per=100.00%, avg=8070.50, stdev=55.86, 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=1.75%, ctx=40, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178506: Sat Aug 22 07:49:12 2026 write: IOPS=0, BW=2289KiB/s (2344kB/s)(12.0MiB/5368msec); 0 zone resets clat (msec): min=836, max=3626, avg=1771.01, stdev=1607.12 lat (msec): min=836, max=3627, avg=1771.47, stdev=1607.09 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.04%, sys=2.79%, ctx=38, 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=2984KiB/s (3055kB/s), 746KiB/s-2369KiB/s (764kB/s-2426kB/s), io=16.0MiB (16.8MB), run=5187-5491msec WRITE: bw=5968KiB/s (6111kB/s), 1492KiB/s-2289KiB/s (1528kB/s-2344kB/s), io=32.0MiB (33.6MB), run=5368-5491msec