== sanity test 398b: DIO and buffer IO race ============== 10:16:26 (1787840186) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.67621 s, 10.8 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=144511: Thu Aug 27 10:18:34 2026 read: IOPS=13, BW=53.2KiB/s (54.4kB/s)(5992KiB/112735msec) clat (usec): min=33, max=959738, avg=35912.12, stdev=37053.15 lat (usec): min=33, max=959740, avg=35918.22, stdev=37050.83 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 86], 20.00th=[ 15664], | 30.00th=[ 20841], 40.00th=[ 24773], 50.00th=[ 29754], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 53216], 90.00th=[ 68682], 95.00th=[ 84411], | 99.00th=[122160], 99.50th=[175113], 99.90th=[291505], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 15, max= 120, per=25.28%, avg=53.34, stdev=22.26, samples=219 iops : min= 3, max= 30, avg=12.72, stdev= 5.61, samples=219 write: IOPS=13, BW=55.8KiB/s (57.2kB/s)(6296KiB/112735msec); 0 zone resets clat (usec): min=967, max=433657, avg=37160.15, stdev=36595.70 lat (usec): min=968, max=433659, avg=37167.64, stdev=36606.37 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1254], 10.00th=[ 1909], 20.00th=[ 4228], | 30.00th=[ 8979], 40.00th=[ 19530], 50.00th=[ 30016], 60.00th=[ 39584], | 70.00th=[ 50070], 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[154141], 99.50th=[181404], 99.90th=[295699], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=55.81, stdev=20.85, samples=220 iops : min= 1, max= 29, avg=13.34, stdev= 5.24, samples=220 lat (usec) : 50=1.27%, 100=4.07%, 250=0.29%, 500=0.20%, 1000=0.13% lat (msec) : 2=5.24%, 4=4.46%, 10=7.16%, 20=11.78%, 50=38.80% lat (msec) : 100=22.27%, 250=4.17%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=5.93%, ctx=6614, 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=144512: Thu Aug 27 10:18:34 2026 read: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5940KiB/112848msec) clat (usec): min=28, max=1022.1k, avg=36214.49, stdev=37228.32 lat (usec): min=28, max=1022.1k, avg=36218.99, stdev=37227.30 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 56], 10.00th=[ 113], | 20.00th=[ 15401], 30.00th=[ 20579], 40.00th=[ 25035], | 50.00th=[ 30540], 60.00th=[ 36963], 70.00th=[ 43779], | 80.00th=[ 54264], 90.00th=[ 69731], 95.00th=[ 84411], | 99.00th=[ 122160], 99.50th=[ 141558], 99.90th=[ 248513], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 119, per=25.29%, avg=53.36, stdev=22.05, samples=218 iops : min= 1, max= 29, avg=12.72, stdev= 5.56, samples=218 write: IOPS=14, BW=56.3KiB/s (57.6kB/s)(6348KiB/112848msec); 0 zone resets clat (usec): min=704, max=357246, avg=36907.40, stdev=38548.80 lat (usec): min=706, max=357247, avg=36912.95, stdev=38548.31 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1795], 20.00th=[ 4228], | 30.00th=[ 8291], 40.00th=[ 18482], 50.00th=[ 27919], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 62129], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[170918], 99.50th=[212861], 99.90th=[291505], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 119, per=25.43%, avg=56.21, stdev=22.63, samples=221 iops : min= 1, max= 29, avg=13.44, stdev= 5.67, samples=221 lat (usec) : 50=0.88%, 100=3.78%, 250=0.46%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.44%, 4=4.79%, 10=7.13%, 20=12.60%, 50=38.77% lat (msec) : 100=21.29%, 250=4.30%, 500=0.16%, 2000=0.03% cpu : usr=0.07%, sys=5.78%, ctx=6512, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144513: Thu Aug 27 10:18:34 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6028KiB/113348msec) clat (usec): min=32, max=999520, avg=35619.54, stdev=38508.63 lat (usec): min=32, max=999521, avg=35621.76, stdev=38508.93 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 81], | 20.00th=[ 15270], 30.00th=[ 20317], 40.00th=[ 24249], | 50.00th=[ 29230], 60.00th=[ 34866], 70.00th=[ 42730], | 80.00th=[ 52167], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[ 141558], 99.50th=[ 185598], 99.90th=[ 358613], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 135, per=25.06%, avg=52.87, stdev=22.78, samples=223 iops : min= 1, max= 33, avg=12.61, stdev= 5.73, samples=223 write: IOPS=13, BW=55.2KiB/s (56.6kB/s)(6260KiB/113348msec); 0 zone resets clat (usec): min=780, max=264570, avg=37906.87, stdev=37546.18 lat (usec): min=781, max=264571, avg=37908.28, stdev=37546.18 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1827], 20.00th=[ 4555], | 30.00th=[ 9372], 40.00th=[ 19530], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[162530], 99.50th=[198181], 99.90th=[254804], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 183, per=24.85%, avg=54.93, stdev=22.56, samples=223 iops : min= 1, max= 45, avg=13.12, stdev= 5.66, samples=223 lat (usec) : 50=1.27%, 100=3.97%, 250=0.39%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=5.79%, 4=3.91%, 10=6.90%, 20=12.53%, 50=39.03% lat (msec) : 100=21.29%, 250=4.52%, 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=5.86%, ctx=6566, 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=144514: Thu Aug 27 10:18:34 2026 read: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6052KiB/111301msec) clat (usec): min=29, max=238126, avg=35000.80, stdev=27522.62 lat (usec): min=29, max=238127, avg=35001.97, stdev=27522.71 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 147], 20.00th=[ 15008], | 30.00th=[ 20055], 40.00th=[ 24249], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 43254], 80.00th=[ 53740], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[115868], 99.50th=[141558], 99.90th=[231736], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 128, per=25.92%, avg=54.69, stdev=19.80, samples=216 iops : min= 1, max= 32, avg=13.07, stdev= 4.99, samples=216 write: IOPS=14, BW=56.0KiB/s (57.4kB/s)(6236KiB/111301msec); 0 zone resets clat (usec): min=930, max=1171.0k, avg=37145.41, stdev=48077.47 lat (usec): min=932, max=1171.0k, avg=37148.21, stdev=48079.26 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1582], | 20.00th=[ 3523], 30.00th=[ 7242], 40.00th=[ 16712], | 50.00th=[ 26346], 60.00th=[ 34866], 70.00th=[ 47449], | 80.00th=[ 64226], 90.00th=[ 86508], 95.00th=[ 108528], | 99.00th=[ 175113], 99.50th=[ 202376], 99.90th=[ 362808], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 127, per=25.36%, avg=56.05, stdev=21.74, samples=217 iops : min= 1, max= 31, avg=13.41, stdev= 5.47, samples=217 lat (usec) : 50=1.04%, 100=3.61%, 250=0.39%, 500=0.10%, 1000=0.16% lat (msec) : 2=6.61%, 4=4.20%, 10=6.71%, 20=13.96%, 50=37.63% lat (msec) : 100=21.06%, 250=4.36%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.77%, ctx=6471, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=212KiB/s (217kB/s), 52.6KiB/s-54.4KiB/s (53.9kB/s-55.7kB/s), io=23.4MiB (24.6MB), run=111301-113348msec WRITE: bw=222KiB/s (227kB/s), 55.2KiB/s-56.3KiB/s (56.6kB/s-57.6kB/s), io=24.6MiB (25.7MB), run=111301-113348msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144507: Thu Aug 27 10:20:44 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(5992KiB/243561msec) clat (msec): min=5, max=1040, avg=32.07, stdev=39.89 lat (msec): min=5, max=1040, avg=32.07, stdev=39.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 64], 95.00th=[ 87], | 99.00th=[ 146], 99.50th=[ 165], 99.90th=[ 397], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 87, per=27.58%, avg=27.03, stdev=17.44, samples=429 iops : min= 1, max= 21, avg= 6.13, stdev= 4.40, samples=429 write: IOPS=6, BW=25.8KiB/s (26.5kB/s)(6296KiB/243561msec); 0 zone resets clat (msec): min=30, max=448, avg=123.94, stdev=55.90 lat (msec): min=30, max=448, avg=123.94, stdev=55.90 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 99], 50.00th=[ 110], 60.00th=[ 124], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 203], 95.00th=[ 234], | 99.00th=[ 292], 99.50th=[ 330], 99.90th=[ 384], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 56, per=25.00%, avg=25.50, stdev=11.05, samples=477 iops : min= 1, max= 14, avg= 5.75, stdev= 2.83, samples=477 lat (msec) : 10=4.98%, 20=16.57%, 50=21.03%, 100=25.75%, 250=29.79% lat (msec) : 500=1.86%, 2000=0.03% cpu : usr=0.05%, sys=1.26%, ctx=5475, 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=144508: Thu Aug 27 10:20:44 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(5940KiB/243952msec) clat (msec): min=5, max=1087, avg=33.14, stdev=42.53 lat (msec): min=5, max=1087, avg=33.14, stdev=42.53 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 67], 95.00th=[ 90], | 99.00th=[ 174], 99.50th=[ 224], 99.90th=[ 388], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 95, per=26.76%, avg=26.23, stdev=17.35, samples=438 iops : min= 1, max= 23, avg= 5.93, stdev= 4.37, samples=438 write: IOPS=6, BW=26.0KiB/s (26.6kB/s)(6348KiB/243952msec); 0 zone resets clat (msec): min=29, max=601, avg=122.43, stdev=57.04 lat (msec): min=29, max=601, avg=122.44, stdev=57.04 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 199], 95.00th=[ 232], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 518], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 63, per=25.16%, avg=25.66, stdev=11.18, samples=478 iops : min= 1, max= 15, avg= 5.79, stdev= 2.84, samples=478 lat (msec) : 10=4.72%, 20=16.41%, 50=20.48%, 100=26.63%, 250=29.82% lat (msec) : 500=1.86%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.24%, ctx=5400, 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=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=144509: Thu Aug 27 10:20:44 2026 read: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6028KiB/243395msec) clat (msec): min=4, max=454, avg=33.92, stdev=33.14 lat (msec): min=4, max=454, avg=33.93, stdev=33.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 140], 99.50th=[ 194], 99.90th=[ 330], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 103, per=26.93%, avg=26.40, stdev=17.26, samples=442 iops : min= 1, max= 25, avg= 5.98, stdev= 4.34, samples=442 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6260KiB/243395msec); 0 zone resets clat (msec): min=36, max=1233, avg=122.57, stdev=63.51 lat (msec): min=36, max=1233, avg=122.57, stdev=63.51 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 197], 95.00th=[ 230], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 609], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 63, per=24.99%, avg=25.49, stdev=11.53, samples=475 iops : min= 1, max= 15, avg= 5.75, stdev= 2.93, samples=475 lat (msec) : 10=4.62%, 20=16.24%, 50=20.18%, 100=27.44%, 250=29.59% lat (msec) : 500=1.82%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.24%, ctx=5495, 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=144510: Thu Aug 27 10:20:44 2026 read: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6052KiB/244123msec) clat (msec): min=5, max=454, avg=32.18, stdev=31.83 lat (msec): min=5, max=454, avg=32.18, stdev=31.83 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 68], 95.00th=[ 88], | 99.00th=[ 138], 99.50th=[ 190], 99.90th=[ 380], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 111, per=27.60%, avg=27.05, stdev=18.35, samples=434 iops : min= 1, max= 27, avg= 6.14, stdev= 4.60, samples=434 write: IOPS=6, BW=25.5KiB/s (26.2kB/s)(6236KiB/244123msec); 0 zone resets clat (msec): min=27, max=1177, avg=125.07, stdev=64.66 lat (msec): min=27, max=1177, avg=125.07, stdev=64.67 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 203], 95.00th=[ 243], | 99.00th=[ 330], 99.50th=[ 368], 99.90th=[ 456], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 56, per=24.70%, avg=25.19, stdev=11.05, samples=479 iops : min= 1, max= 14, avg= 5.68, stdev= 2.82, samples=479 lat (msec) : 10=5.60%, 20=16.44%, 50=19.76%, 100=27.25%, 250=28.55% lat (msec) : 500=2.38%, 2000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5448, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=98.4KiB/s (101kB/s), 24.3KiB/s-24.8KiB/s (24.9kB/s-25.4kB/s), io=23.4MiB (24.6MB), run=243395-244123msec WRITE: bw=103KiB/s (105kB/s), 25.5KiB/s-26.0KiB/s (26.2kB/s-26.6kB/s), io=24.6MiB (25.7MB), run=243395-244123msec 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=144562: Thu Aug 27 10:21:24 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(5920KiB/30518msec) clat (usec): min=37, max=285587, avg=40943.90, stdev=38400.18 lat (usec): min=37, max=285589, avg=40945.11, stdev=38400.37 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 84], | 30.00th=[ 18220], 40.00th=[ 27657], 50.00th=[ 35390], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 64226], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[160433], 99.50th=[210764], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 63, max= 376, per=24.18%, avg=189.59, stdev=73.96, samples=59 iops : min= 3, max= 23, avg=11.15, stdev= 4.73, samples=59 write: IOPS=13, BW=209KiB/s (214kB/s)(6368KiB/30518msec); 0 zone resets clat (usec): min=1265, max=375128, avg=38128.22, stdev=46059.17 lat (usec): min=1267, max=375130, avg=38130.13, stdev=46059.28 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1713], 10.00th=[ 2245], 20.00th=[ 5342], | 30.00th=[ 8455], 40.00th=[ 12911], 50.00th=[ 20841], 60.00th=[ 31589], | 70.00th=[ 46924], 80.00th=[ 67634], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[221250], 99.50th=[295699], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 30, max= 416, per=25.03%, avg=206.29, stdev=94.60, samples=59 iops : min= 1, max= 26, avg=12.20, stdev= 5.98, samples=59 lat (usec) : 50=1.56%, 100=8.85%, 250=1.30%, 500=0.39%, 750=0.13% lat (msec) : 2=4.56%, 4=4.43%, 10=9.11%, 20=9.64%, 50=27.47% lat (msec) : 100=24.48%, 250=7.68%, 500=0.39% cpu : usr=0.06%, sys=5.38%, ctx=1390, 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=144563: Thu Aug 27 10:21:24 2026 read: IOPS=11, BW=191KiB/s (196kB/s)(5744KiB/30069msec) clat (usec): min=36, max=169376, avg=41557.90, stdev=34279.00 lat (usec): min=37, max=169377, avg=41564.21, stdev=34278.21 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 149], | 30.00th=[ 22676], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[107480], | 99.00th=[135267], 99.50th=[166724], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 54, max= 463, per=24.37%, avg=191.08, stdev=88.08, samples=59 iops : min= 3, max= 28, avg=11.24, stdev= 5.57, samples=59 write: IOPS=13, BW=218KiB/s (223kB/s)(6544KiB/30069msec); 0 zone resets clat (usec): min=1457, max=272832, avg=36516.66, stdev=38899.30 lat (usec): min=1460, max=272834, avg=36518.85, stdev=38899.48 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2008], 10.00th=[ 3097], 20.00th=[ 5538], | 30.00th=[ 9634], 40.00th=[ 16188], 50.00th=[ 24249], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 63177], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[168821], 99.50th=[193987], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 480, per=26.35%, avg=217.12, stdev=90.86, samples=59 iops : min= 1, max= 30, avg=12.86, stdev= 5.80, samples=59 lat (usec) : 50=1.43%, 100=7.29%, 250=0.78%, 500=0.26% lat (msec) : 2=2.86%, 4=4.95%, 10=8.72%, 20=9.51%, 50=35.29% lat (msec) : 100=22.01%, 250=6.64%, 500=0.26% cpu : usr=0.06%, sys=5.71%, ctx=1461, 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=144564: Thu Aug 27 10:21:24 2026 read: IOPS=12, BW=205KiB/s (210kB/s)(6256KiB/30551msec) clat (usec): min=30, max=329381, avg=41882.40, stdev=34778.42 lat (usec): min=31, max=329382, avg=41883.59, stdev=34778.40 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 15401], | 30.00th=[ 24249], 40.00th=[ 32113], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[ 96994], | 99.00th=[168821], 99.50th=[183501], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 61, max= 384, per=26.13%, avg=204.85, stdev=80.34, samples=60 iops : min= 3, max= 24, avg=12.10, stdev= 5.07, samples=60 write: IOPS=12, BW=197KiB/s (202kB/s)(6032KiB/30551msec); 0 zone resets clat (usec): min=1447, max=402052, avg=37381.88, stdev=46290.93 lat (usec): min=1449, max=402055, avg=37413.14, stdev=46275.31 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1729], 10.00th=[ 2147], 20.00th=[ 3851], | 30.00th=[ 7242], 40.00th=[ 10683], 50.00th=[ 17433], 60.00th=[ 31327], | 70.00th=[ 48497], 80.00th=[ 67634], 90.00th=[ 95945], 95.00th=[125305], | 99.00th=[191890], 99.50th=[291505], 99.90th=[400557], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 62, max= 510, per=23.88%, avg=196.77, stdev=100.19, samples=60 iops : min= 3, max= 31, avg=11.58, stdev= 6.32, samples=60 lat (usec) : 50=1.04%, 100=8.20%, 250=0.13% lat (msec) : 2=4.56%, 4=5.73%, 10=8.33%, 20=9.90%, 50=31.12% lat (msec) : 100=24.48%, 250=6.12%, 500=0.39% cpu : usr=0.05%, sys=5.89%, ctx=1423, 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=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=144565: Thu Aug 27 10:21:24 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(6032KiB/29070msec) clat (usec): min=31, max=164430, avg=39857.80, stdev=33691.29 lat (usec): min=32, max=164431, avg=39865.27, stdev=33708.18 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 82], | 30.00th=[ 20579], 40.00th=[ 29754], 50.00th=[ 37487], 60.00th=[ 45876], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[104334], | 99.00th=[133694], 99.50th=[156238], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 62, max= 383, per=26.41%, avg=207.02, stdev=73.95, samples=57 iops : min= 3, max= 23, avg=12.23, stdev= 4.65, samples=57 write: IOPS=13, BW=215KiB/s (220kB/s)(6256KiB/29070msec); 0 zone resets clat (usec): min=1369, max=289773, avg=35429.45, stdev=40235.62 lat (usec): min=1371, max=289775, avg=35431.55, stdev=40235.68 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1663], 10.00th=[ 2147], 20.00th=[ 4686], | 30.00th=[ 7898], 40.00th=[ 12649], 50.00th=[ 19792], 60.00th=[ 28705], | 70.00th=[ 44303], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[123208], | 99.00th=[164627], 99.50th=[200279], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 480, per=26.12%, avg=215.21, stdev=89.47, samples=57 iops : min= 1, max= 30, avg=12.74, stdev= 5.65, samples=57 lat (usec) : 50=1.82%, 100=8.85%, 250=1.04% lat (msec) : 2=5.21%, 4=4.56%, 10=8.46%, 20=10.29%, 50=30.21% lat (msec) : 100=22.66%, 250=6.77%, 500=0.13% cpu : usr=0.07%, sys=5.72%, ctx=1329, 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=784KiB/s (803kB/s), 191KiB/s-207KiB/s (196kB/s-212kB/s), io=23.4MiB (24.5MB), run=29070-30551msec WRITE: bw=825KiB/s (845kB/s), 197KiB/s-218KiB/s (202kB/s-223kB/s), io=24.6MiB (25.8MB), run=29070-30551msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144567: Thu Aug 27 10:22:01 2026 read: IOPS=5, BW=90.4KiB/s (92.5kB/s)(5920KiB/65518msec) clat (msec): min=6, max=362, avg=37.31, stdev=47.80 lat (msec): min=6, max=362, avg=37.31, stdev=47.80 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 91], 95.00th=[ 142], | 99.00th=[ 266], 99.50th=[ 313], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 29, max= 381, per=28.62%, avg=102.76, stdev=69.77, samples=112 iops : min= 1, max= 23, avg= 5.71, stdev= 4.39, samples=112 write: IOPS=6, BW=97.2KiB/s (99.5kB/s)(6368KiB/65518msec); 0 zone resets clat (msec): min=36, max=462, avg=129.78, stdev=71.67 lat (msec): min=36, max=462, avg=129.78, stdev=71.67 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 75], | 30.00th=[ 91], 40.00th=[ 97], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 226], 95.00th=[ 292], | 99.00th=[ 409], 99.50th=[ 451], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 27, max= 220, per=25.92%, avg=97.98, stdev=49.22, samples=127 iops : min= 1, max= 13, avg= 5.42, stdev= 3.15, samples=127 lat (msec) : 10=4.56%, 20=20.05%, 50=15.89%, 100=26.69%, 250=28.52% lat (msec) : 500=4.30% cpu : usr=0.04%, sys=1.19%, ctx=1338, 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=144568: Thu Aug 27 10:22:01 2026 read: IOPS=5, BW=86.2KiB/s (88.3kB/s)(5744KiB/66645msec) clat (msec): min=6, max=340, avg=37.65, stdev=50.71 lat (msec): min=6, max=340, avg=37.65, stdev=50.71 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 87], 95.00th=[ 146], | 99.00th=[ 259], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 27, max= 415, per=28.04%, avg=100.65, stdev=69.94, samples=111 iops : min= 1, max= 25, avg= 5.59, stdev= 4.42, samples=111 write: IOPS=6, BW=98.2KiB/s (101kB/s)(6544KiB/66645msec); 0 zone resets clat (msec): min=33, max=487, avg=129.77, stdev=74.35 lat (msec): min=33, max=487, avg=129.78, stdev=74.35 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 97], 50.00th=[ 112], 60.00th=[ 122], | 70.00th=[ 140], 80.00th=[ 167], 90.00th=[ 230], 95.00th=[ 288], | 99.00th=[ 380], 99.50th=[ 430], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 27, max= 224, per=26.95%, avg=101.86, stdev=49.97, samples=125 iops : min= 1, max= 14, avg= 5.68, stdev= 3.23, samples=125 lat (msec) : 10=5.08%, 20=18.88%, 50=16.80%, 100=24.48%, 250=29.82% lat (msec) : 500=4.95% cpu : usr=0.03%, sys=1.28%, ctx=1394, 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=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=144569: Thu Aug 27 10:22:01 2026 read: IOPS=6, BW=97.5KiB/s (99.8kB/s)(6256KiB/64176msec) clat (msec): min=6, max=371, avg=34.69, stdev=40.83 lat (msec): min=6, max=371, avg=34.69, stdev=40.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 116], | 99.00th=[ 207], 99.50th=[ 330], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 29, max= 351, per=29.46%, avg=105.77, stdev=77.11, samples=117 iops : min= 1, max= 21, avg= 5.91, stdev= 4.84, samples=117 write: IOPS=5, BW=93.0KiB/s (96.2kB/s)(6032KiB/64176msec); 0 zone resets clat (msec): min=31, max=546, avg=134.09, stdev=73.60 lat (msec): min=31, max=546, avg=134.10, stdev=73.59 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 100], 50.00th=[ 115], 60.00th=[ 133], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 426], 99.50th=[ 527], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 28, max= 254, per=24.97%, avg=94.39, stdev=47.17, samples=126 iops : min= 1, max= 15, avg= 5.20, stdev= 3.04, samples=126 lat (msec) : 10=4.95%, 20=18.36%, 50=19.79%, 100=24.09%, 250=28.39% lat (msec) : 500=4.17%, 750=0.26% cpu : usr=0.02%, sys=1.22%, ctx=1391, 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=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=144570: Thu Aug 27 10:22:01 2026 read: IOPS=5, BW=92.4KiB/s (94.6kB/s)(6032KiB/65287msec) clat (msec): min=6, max=318, avg=35.22, stdev=40.26 lat (msec): min=6, max=318, avg=35.22, stdev=40.26 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 77], 95.00th=[ 126], | 99.00th=[ 220], 99.50th=[ 234], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 286, per=30.20%, avg=108.40, stdev=68.70, samples=109 iops : min= 1, max= 17, avg= 6.08, stdev= 4.35, samples=109 write: IOPS=5, BW=95.8KiB/s (98.1kB/s)(6256KiB/65287msec); 0 zone resets clat (msec): min=33, max=463, avg=132.79, stdev=70.59 lat (msec): min=33, max=463, avg=132.79, stdev=70.59 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 228], 95.00th=[ 279], | 99.00th=[ 397], 99.50th=[ 443], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 29, max= 192, per=25.65%, avg=96.95, stdev=47.71, samples=127 iops : min= 1, max= 12, avg= 5.35, stdev= 3.03, samples=127 lat (msec) : 10=4.30%, 20=19.40%, 50=17.32%, 100=23.83%, 250=30.86% lat (msec) : 500=4.30% cpu : usr=0.03%, sys=1.23%, ctx=1380, 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=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=359KiB/s (368kB/s), 86.2KiB/s-97.5KiB/s (88.3kB/s-99.8kB/s), io=23.4MiB (24.5MB), run=64176-66645msec WRITE: bw=378KiB/s (387kB/s), 93.0KiB/s-98.2KiB/s (96.2kB/s-101kB/s), io=24.6MiB (25.8MB), run=64176-66645msec 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=144594: Thu Aug 27 10:22:14 2026 read: IOPS=1, BW=1934KiB/s (1980kB/s)(7168KiB/3707msec) clat (msec): min=73, max=331, avg=179.60, stdev=105.94 lat (msec): min=73, max=331, avg=179.60, stdev=105.94 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 157], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 313], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1777, max= 4096, per=66.83%, avg=2952.75, stdev=1301.74, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1381KiB/s (1414kB/s)(5120KiB/3707msec); 0 zone resets clat (msec): min=181, max=625, avg=444.87, stdev=168.93 lat (msec): min=181, max=625, avg=444.94, stdev=168.93 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 542], 80.00th=[ 542], 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= 1875, max= 2048, per=32.22%, avg=1993.00, stdev=70.17, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=6.34%, ctx=95, 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=144595: Thu Aug 27 10:22:14 2026 read: IOPS=0, BW=448KiB/s (458kB/s)(2048KiB/4574msec) clat (msec): min=113, max=135, avg=124.09, stdev=15.55 lat (msec): min=113, max=135, avg=124.09, stdev=15.55 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 136], 90.00th=[ 136], 95.00th=[ 136], | 99.00th=[ 136], 99.50th=[ 136], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 1712, max= 1875, per=40.60%, avg=1793.50, stdev=115.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2239KiB/s (2292kB/s)(10.0MiB/4574msec); 0 zone resets clat (msec): min=102, max=954, avg=427.95, stdev=300.02 lat (msec): min=102, max=955, avg=428.24, stdev=300.02 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 134], | 30.00th=[ 197], 40.00th=[ 220], 50.00th=[ 249], 60.00th=[ 435], | 70.00th=[ 558], 80.00th=[ 592], 90.00th=[ 835], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1875, max= 4096, per=45.70%, avg=2826.60, stdev=1160.59, samples=5 iops : min= 1, max= 4, avg= 2.20, stdev= 1.64, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=4.42%, ctx=77, 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=144596: Thu Aug 27 10:22:14 2026 read: IOPS=1, BW=1326KiB/s (1357kB/s)(6144KiB/4635msec) clat (msec): min=94, max=317, avg=187.23, stdev=101.42 lat (msec): min=94, max=317, avg=187.24, stdev=101.42 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 174], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 2023, max= 4096, per=74.46%, avg=3289.67, stdev=1110.52, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1326KiB/s (1357kB/s)(6144KiB/4635msec); 0 zone resets clat (msec): min=171, max=1274, avg=553.94, stdev=441.15 lat (msec): min=171, max=1274, avg=554.04, stdev=441.17 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 405], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1875, max= 4096, per=40.43%, avg=2500.75, stdev=1065.90, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.94%, ctx=86, 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=144597: Thu Aug 27 10:22:14 2026 read: IOPS=1, BW=1210KiB/s (1239kB/s)(5120KiB/4233msec) clat (msec): min=59, max=420, avg=193.27, stdev=138.99 lat (msec): min=59, max=420, avg=193.27, stdev=138.99 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 59], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 3750, max= 4047, per=88.24%, avg=3898.50, stdev=210.01, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1693KiB/s (1734kB/s)(7168KiB/4233msec); 0 zone resets clat (msec): min=133, max=966, avg=440.91, stdev=312.00 lat (msec): min=133, max=966, avg=441.04, stdev=311.98 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 211], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 317], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 785], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1875, max= 4096, per=38.93%, avg=2407.60, stdev=946.30, samples=5 iops : min= 1, max= 4, avg= 1.80, stdev= 1.30, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=16.67% cpu : usr=0.00%, sys=4.75%, ctx=86, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4419KiB/s (4525kB/s), 448KiB/s-1934KiB/s (458kB/s-1980kB/s), io=20.0MiB (20.0MB), run=3707-4635msec WRITE: bw=6186KiB/s (6334kB/s), 1326KiB/s-2239KiB/s (1357kB/s-2292kB/s), io=28.0MiB (29.4MB), run=3707-4635msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144589: Thu Aug 27 10:22:14 2026 read: IOPS=2, BW=2880KiB/s (2949kB/s)(7168KiB/2489msec) clat (usec): min=824, max=298023, avg=150735.19, stdev=103222.63 lat (usec): min=825, max=298024, avg=150736.41, stdev=103222.79 clat percentiles (usec): | 1.00th=[ 824], 5.00th=[ 824], 10.00th=[ 824], 20.00th=[ 31327], | 30.00th=[147850], 40.00th=[147850], 50.00th=[175113], 60.00th=[198181], | 70.00th=[198181], 80.00th=[202376], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 2039, max= 4000, per=76.46%, avg=3279.33, stdev=1078.85, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2057KiB/s (2106kB/s)(5120KiB/2489msec); 0 zone resets clat (msec): min=234, max=376, avg=275.92, stdev=57.60 lat (msec): min=234, max=377, avg=276.03, stdev=57.60 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 2039, max= 4015, per=50.41%, avg=3027.00, stdev=1397.24, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 1000=8.33% lat (msec) : 50=8.33%, 250=50.00%, 500=33.33% cpu : usr=0.00%, sys=22.51%, ctx=275, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144590: Thu Aug 27 10:22:14 2026 read: IOPS=0, BW=429KiB/s (439kB/s)(2048KiB/4774msec) clat (msec): min=198, max=298, avg=248.54, stdev=71.08 lat (msec): min=198, max=298, avg=248.54, stdev=71.08 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1939, max= 1984, per=45.73%, avg=1961.50, stdev=31.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2145KiB/s (2196kB/s)(10.0MiB/4774msec); 0 zone resets clat (msec): min=140, max=625, avg=407.41, stdev=221.21 lat (msec): min=140, max=625, avg=407.68, stdev=221.41 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 142], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 443], 60.00th=[ 558], | 70.00th=[ 584], 80.00th=[ 617], 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= 1984, max= 6107, per=45.00%, avg=2702.50, stdev=1668.01, samples=6 iops : min= 1, max= 5, avg= 1.67, stdev= 1.63, samples=6 lat (msec) : 250=41.67%, 500=16.67%, 750=41.67% cpu : usr=0.00%, sys=16.20%, ctx=219, 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=144591: Thu Aug 27 10:22:14 2026 read: IOPS=1, BW=1760KiB/s (1802kB/s)(6144KiB/3491msec) clat (usec): min=694, max=336242, avg=141410.88, stdev=156277.72 lat (usec): min=695, max=336243, avg=141411.90, stdev=156277.56 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 717], | 30.00th=[ 717], 40.00th=[ 2835], 50.00th=[ 2835], 60.00th=[252707], | 70.00th=[254804], 80.00th=[254804], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 2035, max= 4087, per=78.78%, avg=3379.00, stdev=1164.49, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1760KiB/s (1802kB/s)(6144KiB/3491msec); 0 zone resets clat (msec): min=190, max=695, avg=395.93, stdev=182.29 lat (msec): min=190, max=695, avg=396.00, stdev=182.30 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 422], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2007, max= 4079, per=42.31%, avg=2541.00, stdev=1025.45, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 4=8.33%, 250=16.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=16.96%, ctx=249, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144592: Thu Aug 27 10:22:14 2026 read: IOPS=1, BW=1365KiB/s (1398kB/s)(5120KiB/3750msec) clat (usec): min=1112, max=238745, avg=83876.08, stdev=113860.60 lat (usec): min=1113, max=238746, avg=83877.09, stdev=113860.64 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1106], 10.00th=[ 1106], 20.00th=[ 1106], | 30.00th=[ 2507], 40.00th=[ 2507], 50.00th=[ 3785], 60.00th=[ 3785], | 70.00th=[173016], 80.00th=[173016], 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1911KiB/s (1957kB/s)(7168KiB/3750msec); 0 zone resets clat (msec): min=229, max=649, avg=435.05, stdev=178.73 lat (msec): min=229, max=649, avg=435.31, stdev=178.58 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 232], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 502], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 617], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1984, max= 2043, per=33.61%, avg=2018.00, stdev=24.31, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=8.33%, 4=16.67%, 250=33.33%, 500=16.67%, 750=25.00% cpu : usr=0.03%, sys=15.41%, ctx=147, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4290KiB/s (4393kB/s), 429KiB/s-2880KiB/s (439kB/s-2949kB/s), io=20.0MiB (20.0MB), run=2489-4774msec WRITE: bw=6006KiB/s (6150kB/s), 1760KiB/s-2145KiB/s (1802kB/s-2196kB/s), io=28.0MiB (29.4MB), run=2489-4774msec 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=144604: Thu Aug 27 10:22:27 2026 read: IOPS=1, BW=5005KiB/s (5125kB/s)(12.0MiB/2455msec) clat (msec): min=635, max=823, avg=748.77, stdev=99.99 lat (msec): min=635, max=823, avg=748.77, stdev=99.99 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 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= 7922, max= 8047, per=100.00%, avg=7984.50, stdev=88.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.91%, ctx=453, 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=144605: Thu Aug 27 10:22:27 2026 read: IOPS=0, BW=1475KiB/s (1510kB/s)(4096KiB/2777msec) clat (nsec): min=737068k, max=737068k, avg=737067682.00, stdev= 0.00 lat (nsec): min=737070k, max=737070k, avg=737070342.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7922, max= 7922, per=100.00%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2950KiB/s (3021kB/s)(8192KiB/2777msec); 0 zone resets clat (msec): min=542, max=1322, avg=932.41, stdev=551.66 lat (msec): min=542, max=1322, avg=932.73, stdev=551.65 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7787, max= 7787, per=85.32%, avg=7787.00, 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=9.40%, ctx=145, 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=144606: Thu Aug 27 10:22:27 2026 write: IOPS=0, BW=3423KiB/s (3505kB/s)(12.0MiB/3590msec); 0 zone resets clat (msec): min=409, max=2005, avg=1147.45, stdev=804.36 lat (msec): min=410, max=2005, avg=1147.79, stdev=804.37 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7787, max= 7787, per=85.32%, avg=7787.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.85%, ctx=110, 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=144608: Thu Aug 27 10:22:27 2026 write: IOPS=1, BW=5189KiB/s (5314kB/s)(12.0MiB/2368msec); 0 zone resets clat (msec): min=300, max=1594, avg=745.45, stdev=735.22 lat (msec): min=300, max=1594, avg=746.17, stdev=734.93 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 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= 6736, max= 7922, per=80.30%, avg=7329.00, stdev=838.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=7.10%, 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 Run status group 0 (all jobs): READ: bw=5900KiB/s (6041kB/s), 1475KiB/s-5005KiB/s (1510kB/s-5125kB/s), io=16.0MiB (16.8MB), run=2455-2777msec WRITE: bw=9128KiB/s (9347kB/s), 2950KiB/s-5189KiB/s (3021kB/s-5314kB/s), io=32.0MiB (33.6MB), run=2368-3590msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144607: Thu Aug 27 10:22:27 2026 read: IOPS=0, BW=3744KiB/s (3834kB/s)(12.0MiB/3282msec) clat (msec): min=321, max=1721, avg=1038.58, stdev=700.67 lat (msec): min=321, max=1721, avg=1038.58, stdev=700.67 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.11%, ctx=52, 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=144609: Thu Aug 27 10:22:27 2026 read: IOPS=0, BW=1203KiB/s (1231kB/s)(4096KiB/3406msec) clat (nsec): min=1527.6M, max=1527.6M, avg=1527621747.00, stdev= 0.00 lat (nsec): min=1527.6M, max=1527.6M, avg=1527623977.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1536], 5.00th=[ 1536], 10.00th=[ 1536], 20.00th=[ 1536], | 30.00th=[ 1536], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2405KiB/s (2463kB/s)(8192KiB/3406msec); 0 zone resets clat (msec): min=736, max=1005, avg=870.60, stdev=190.28 lat (msec): min=737, max=1006, avg=872.24, stdev=190.09 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8143, max= 8143, per=84.65%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.93%, ctx=58, 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=144610: Thu Aug 27 10:22:27 2026 write: IOPS=0, BW=4078KiB/s (4176kB/s)(12.0MiB/3013msec); 0 zone resets clat (msec): min=676, max=1261, avg=960.35, stdev=292.71 lat (msec): min=676, max=1261, avg=960.65, stdev=292.68 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8143, max= 8175, per=84.81%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.52%, ctx=43, 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=144611: Thu Aug 27 10:22:27 2026 write: IOPS=1, BW=4750KiB/s (4864kB/s)(12.0MiB/2587msec); 0 zone resets clat (msec): min=380, max=1188, avg=758.95, stdev=406.61 lat (msec): min=380, max=1189, avg=759.34, stdev=406.64 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1183], 80.00th=[ 1183], 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= 8175, max= 8175, per=84.98%, avg=8175.00, stdev= 0.00, 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=0.04%, sys=5.38%, ctx=69, 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=4810KiB/s (4926kB/s), 1203KiB/s-3744KiB/s (1231kB/s-3834kB/s), io=16.0MiB (16.8MB), run=3282-3406msec WRITE: bw=9621KiB/s (9852kB/s), 2405KiB/s-4750KiB/s (2463kB/s-4864kB/s), io=32.0MiB (33.6MB), run=2587-3406msec