== sanity test 398b: DIO and buffer IO race ============== 09:04:04 (1787576644) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.8432 s, 7.4 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=179376: Mon Aug 24 09:06:36 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5992KiB/129412msec) clat (usec): min=32, max=1140.9k, avg=47171.68, stdev=42289.64 lat (usec): min=33, max=1140.9k, avg=47173.10, stdev=42289.68 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 106], 10.00th=[ 15401], | 20.00th=[ 22414], 30.00th=[ 28181], 40.00th=[ 33817], | 50.00th=[ 41157], 60.00th=[ 47973], 70.00th=[ 56361], | 80.00th=[ 66847], 90.00th=[ 86508], 95.00th=[ 103285], | 99.00th=[ 149947], 99.50th=[ 175113], 99.90th=[ 274727], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 103, per=24.97%, avg=45.95, stdev=19.34, samples=253 iops : min= 1, max= 25, avg=10.83, stdev= 4.86, samples=253 write: IOPS=12, BW=48.7KiB/s (49.8kB/s)(6296KiB/129412msec); 0 zone resets clat (usec): min=863, max=253036, avg=37045.81, stdev=39291.47 lat (usec): min=865, max=253038, avg=37051.60, stdev=39292.88 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1319], 20.00th=[ 2835], | 30.00th=[ 5669], 40.00th=[ 15139], 50.00th=[ 26608], 60.00th=[ 36439], | 70.00th=[ 49021], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[117965], | 99.00th=[158335], 99.50th=[193987], 99.90th=[250610], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 152, per=25.09%, avg=48.42, stdev=21.26, samples=253 iops : min= 1, max= 38, avg=11.45, stdev= 5.38, samples=253 lat (usec) : 50=0.23%, 100=2.18%, 250=0.20%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=8.11%, 4=4.36%, 10=5.86%, 20=9.11%, 50=36.23% lat (msec) : 100=26.50%, 250=6.67%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=4.51%, ctx=6278, 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=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=179377: Mon Aug 24 09:06:36 2026 read: IOPS=11, BW=46.0KiB/s (47.1kB/s)(5940KiB/129103msec) clat (usec): min=46, max=1082.2k, avg=47838.13, stdev=41629.34 lat (usec): min=47, max=1082.2k, avg=47840.78, stdev=41629.25 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 10552], 10.00th=[ 16581], | 20.00th=[ 22938], 30.00th=[ 28181], 40.00th=[ 34341], | 50.00th=[ 40633], 60.00th=[ 48497], 70.00th=[ 56886], | 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[ 104334], | 99.00th=[ 162530], 99.50th=[ 206570], 99.90th=[ 299893], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 111, per=24.98%, avg=45.97, stdev=19.90, samples=251 iops : min= 1, max= 27, avg=10.82, stdev= 5.00, samples=251 write: IOPS=12, BW=49.2KiB/s (50.3kB/s)(6348KiB/129103msec); 0 zone resets clat (usec): min=748, max=273554, avg=36172.42, stdev=39078.92 lat (usec): min=750, max=273557, avg=36177.66, stdev=39082.65 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1319], 20.00th=[ 3097], | 30.00th=[ 5997], 40.00th=[ 14353], 50.00th=[ 24773], 60.00th=[ 35914], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[173016], 99.50th=[191890], 99.90th=[261096], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 117, per=25.42%, avg=49.05, stdev=22.35, samples=251 iops : min= 1, max= 29, avg=11.61, stdev= 5.62, samples=251 lat (usec) : 50=0.16%, 100=1.66%, 250=0.20%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.33% lat (msec) : 2=7.68%, 4=4.26%, 10=6.93%, 20=9.21%, 50=36.10% lat (msec) : 100=27.02%, 250=6.22%, 500=0.13%, 2000=0.03% cpu : usr=0.06%, sys=4.62%, ctx=6264, 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=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=179378: Mon Aug 24 09:06:36 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6028KiB/127963msec) clat (usec): min=28, max=281182, avg=45111.55, stdev=31957.50 lat (usec): min=28, max=281183, avg=45113.01, stdev=31957.51 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 14615], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[152044], 99.50th=[181404], 99.90th=[252707], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 110, per=25.77%, avg=47.42, stdev=20.14, samples=248 iops : min= 1, max= 27, avg=11.19, stdev= 5.07, samples=248 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6260KiB/127963msec); 0 zone resets clat (usec): min=742, max=1125.2k, avg=37948.63, stdev=47648.84 lat (usec): min=743, max=1125.2k, avg=37951.75, stdev=47649.09 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1319], | 20.00th=[ 2999], 30.00th=[ 6194], 40.00th=[ 15270], | 50.00th=[ 26346], 60.00th=[ 36439], 70.00th=[ 49021], | 80.00th=[ 66323], 90.00th=[ 92799], 95.00th=[ 117965], | 99.00th=[ 156238], 99.50th=[ 198181], 99.90th=[ 214959], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 111, per=25.30%, avg=48.84, stdev=20.87, samples=250 iops : min= 1, max= 27, avg=11.56, stdev= 5.25, samples=250 lat (usec) : 50=0.39%, 100=2.47%, 250=0.23%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=7.49%, 4=4.17%, 10=6.38%, 20=8.89%, 50=37.79% lat (msec) : 100=25.00%, 250=6.74%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=4.40%, ctx=6096, 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=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=179379: Mon Aug 24 09:06:36 2026 read: IOPS=11, BW=46.5KiB/s (47.7kB/s)(6052KiB/130024msec) clat (usec): min=30, max=278448, avg=47064.79, stdev=33452.65 lat (usec): min=30, max=278449, avg=47068.34, stdev=33453.12 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 14353], 20.00th=[ 22676], | 30.00th=[ 27919], 40.00th=[ 33817], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 58459], 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[105382], | 99.00th=[166724], 99.50th=[200279], 99.90th=[270533], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 128, per=25.40%, avg=46.73, stdev=19.72, samples=252 iops : min= 1, max= 32, avg=11.02, stdev= 4.99, samples=252 write: IOPS=11, BW=47.0KiB/s (49.1kB/s)(6236KiB/130024msec); 0 zone resets clat (usec): min=720, max=1135.1k, avg=37352.99, stdev=48214.62 lat (usec): min=721, max=1135.1k, avg=37355.52, stdev=48216.11 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1139], 10.00th=[ 1303], | 20.00th=[ 2573], 30.00th=[ 5800], 40.00th=[ 15795], | 50.00th=[ 25822], 60.00th=[ 35914], 70.00th=[ 48497], | 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[ 113771], | 99.00th=[ 168821], 99.50th=[ 196084], 99.90th=[ 283116], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 118, per=24.72%, avg=47.72, stdev=21.42, samples=254 iops : min= 1, max= 29, avg=11.27, stdev= 5.39, samples=254 lat (usec) : 50=0.65%, 100=2.47%, 250=0.13%, 750=0.03%, 1000=0.49% lat (msec) : 2=7.91%, 4=4.88%, 10=5.34%, 20=8.24%, 50=36.33% lat (msec) : 100=26.69%, 250=6.67%, 500=0.13%, 2000=0.03% cpu : usr=0.07%, sys=4.46%, ctx=6265, 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=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=185KiB/s (189kB/s), 46.0KiB/s-47.1KiB/s (47.1kB/s-48.2kB/s), io=23.4MiB (24.6MB), run=127963-130024msec WRITE: bw=193KiB/s (198kB/s), 47.0KiB/s-49.2KiB/s (49.1kB/s-50.3kB/s), io=24.6MiB (25.7MB), run=127963-130024msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179371: Mon Aug 24 09:07:31 2026 read: IOPS=8, BW=32.4KiB/s (33.2kB/s)(5992KiB/185012msec) clat (msec): min=4, max=1205, avg=48.65, stdev=52.75 lat (msec): min=4, max=1205, avg=48.65, stdev=52.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 68], 90.00th=[ 103], 95.00th=[ 140], | 99.00th=[ 209], 99.50th=[ 266], 99.90th=[ 338], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 120, per=25.58%, avg=33.00, stdev=21.71, samples=352 iops : min= 1, max= 30, avg= 7.59, stdev= 5.45, samples=352 write: IOPS=8, BW=34.0KiB/s (34.8kB/s)(6296KiB/185012msec); 0 zone resets clat (msec): min=11, max=346, avg=70.85, stdev=47.41 lat (msec): min=11, max=346, avg=70.85, stdev=47.41 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 83], 80.00th=[ 100], 90.00th=[ 134], 95.00th=[ 165], | 99.00th=[ 243], 99.50th=[ 275], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 120, per=25.25%, avg=34.08, stdev=20.42, samples=358 iops : min= 1, max= 30, avg= 7.86, stdev= 5.14, samples=358 lat (msec) : 10=1.40%, 20=10.51%, 50=44.47%, 100=28.55%, 250=14.36% lat (msec) : 500=0.68%, 2000=0.03% cpu : usr=0.05%, sys=1.55%, ctx=4631, 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=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=179372: Mon Aug 24 09:07:31 2026 read: IOPS=8, BW=32.4KiB/s (33.2kB/s)(5940KiB/183050msec) clat (msec): min=6, max=1228, avg=47.38, stdev=51.71 lat (msec): min=6, max=1228, avg=47.38, stdev=51.71 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 66], 90.00th=[ 99], 95.00th=[ 131], | 99.00th=[ 218], 99.50th=[ 259], 99.90th=[ 405], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 104, per=25.53%, avg=32.94, stdev=21.41, samples=349 iops : min= 1, max= 26, avg= 7.58, stdev= 5.37, samples=349 write: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6348KiB/183050msec); 0 zone resets clat (msec): min=10, max=506, avg=70.62, stdev=47.96 lat (msec): min=10, max=506, avg=70.62, stdev=47.96 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 49], 50.00th=[ 58], 60.00th=[ 67], | 70.00th=[ 82], 80.00th=[ 101], 90.00th=[ 134], 95.00th=[ 163], | 99.00th=[ 230], 99.50th=[ 271], 99.90th=[ 397], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 119, per=25.77%, avg=34.79, stdev=19.54, samples=353 iops : min= 1, max= 29, avg= 8.04, stdev= 4.91, samples=353 lat (msec) : 10=1.33%, 20=10.68%, 50=44.04%, 100=28.97%, 250=14.23% lat (msec) : 500=0.68%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.53%, ctx=4601, 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=179373: Mon Aug 24 09:07:31 2026 read: IOPS=8, BW=32.7KiB/s (33.4kB/s)(6028KiB/184578msec) clat (msec): min=6, max=389, avg=48.77, stdev=44.10 lat (msec): min=6, max=389, avg=48.77, stdev=44.10 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 107], 95.00th=[ 142], | 99.00th=[ 203], 99.50th=[ 268], 99.90th=[ 330], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 168, per=25.87%, avg=33.38, stdev=21.53, samples=350 iops : min= 1, max= 42, avg= 7.68, stdev= 5.43, samples=350 write: IOPS=8, BW=33.9KiB/s (34.7kB/s)(6260KiB/184578msec); 0 zone resets clat (msec): min=12, max=1263, avg=70.61, stdev=55.75 lat (msec): min=12, max=1263, avg=70.62, stdev=55.75 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 65], | 70.00th=[ 80], 80.00th=[ 99], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 230], 99.50th=[ 271], 99.90th=[ 426], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 119, per=25.09%, avg=33.88, stdev=20.58, samples=358 iops : min= 1, max= 29, avg= 7.81, stdev= 5.17, samples=358 lat (msec) : 10=1.33%, 20=11.20%, 50=42.94%, 100=29.00%, 250=14.94% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.06%, sys=1.52%, ctx=4691, 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=179375: Mon Aug 24 09:07:31 2026 read: IOPS=8, BW=32.9KiB/s (33.7kB/s)(6052KiB/183711msec) clat (msec): min=5, max=378, avg=47.36, stdev=43.02 lat (msec): min=5, max=378, avg=47.37, stdev=43.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 52], 80.00th=[ 68], 90.00th=[ 103], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 255], 99.90th=[ 305], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 167, per=26.27%, avg=33.89, stdev=22.52, samples=347 iops : min= 1, max= 41, avg= 7.82, stdev= 5.66, samples=347 write: IOPS=8, BW=33.9KiB/s (34.8kB/s)(6236KiB/183711msec); 0 zone resets clat (msec): min=9, max=1270, avg=71.49, stdev=56.34 lat (msec): min=9, max=1270, avg=71.49, stdev=56.35 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 82], 80.00th=[ 101], 90.00th=[ 134], 95.00th=[ 163], | 99.00th=[ 239], 99.50th=[ 275], 99.90th=[ 435], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 111, per=25.57%, avg=34.52, stdev=19.72, samples=351 iops : min= 1, max= 27, avg= 7.98, stdev= 4.96, samples=351 lat (msec) : 10=1.69%, 20=11.69%, 50=42.25%, 100=29.10%, 250=14.65% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.05%, sys=1.51%, ctx=4566, 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=130KiB/s (133kB/s), 32.4KiB/s-32.9KiB/s (33.2kB/s-33.7kB/s), io=23.4MiB (24.6MB), run=183050-185012msec WRITE: bw=136KiB/s (139kB/s), 33.9KiB/s-34.7KiB/s (34.7kB/s-35.5kB/s), io=24.6MiB (25.7MB), run=183050-185012msec 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=179420: Mon Aug 24 09:08:28 2026 read: IOPS=9, BW=150KiB/s (154kB/s)(5920KiB/39425msec) clat (usec): min=47, max=199911, avg=56319.54, stdev=34329.55 lat (usec): min=48, max=199913, avg=56321.11, stdev=34329.47 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 12518], 20.00th=[ 29754], | 30.00th=[ 39060], 40.00th=[ 45351], 50.00th=[ 53216], 60.00th=[ 60556], | 70.00th=[ 69731], 80.00th=[ 81265], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[154141], 99.50th=[183501], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 62, max= 413, per=24.80%, avg=150.54, stdev=61.25, samples=76 iops : min= 3, max= 25, avg= 8.64, stdev= 3.87, samples=76 write: IOPS=10, BW=162KiB/s (165kB/s)(6368KiB/39425msec); 0 zone resets clat (usec): min=1535, max=259305, avg=45804.13, stdev=48562.77 lat (usec): min=1538, max=259309, avg=45806.69, stdev=48562.90 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1795], 10.00th=[ 2704], 20.00th=[ 6063], | 30.00th=[ 10552], 40.00th=[ 17433], 50.00th=[ 28967], 60.00th=[ 40109], | 70.00th=[ 56361], 80.00th=[ 84411], 90.00th=[120062], 95.00th=[149947], | 99.00th=[198181], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 352, per=25.49%, avg=162.91, stdev=69.49, samples=76 iops : min= 1, max= 22, avg= 9.42, stdev= 4.44, samples=76 lat (usec) : 50=0.26%, 100=3.78%, 250=0.65% lat (msec) : 2=3.78%, 4=3.65%, 10=6.90%, 20=7.94%, 50=30.08% lat (msec) : 100=30.99%, 250=11.72%, 500=0.26% cpu : usr=0.07%, sys=4.17%, ctx=1577, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179421: Mon Aug 24 09:08:28 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(5744KiB/38522msec) clat (usec): min=37, max=288866, avg=59003.33, stdev=42795.28 lat (usec): min=37, max=288868, avg=59062.41, stdev=42802.85 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 67], 10.00th=[ 95], 20.00th=[ 26870], | 30.00th=[ 36439], 40.00th=[ 43779], 50.00th=[ 51643], 60.00th=[ 60556], | 70.00th=[ 71828], 80.00th=[ 88605], 90.00th=[112722], 95.00th=[139461], | 99.00th=[179307], 99.50th=[263193], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 318, per=24.88%, avg=151.00, stdev=62.05, samples=74 iops : min= 1, max= 19, avg= 8.66, stdev= 4.00, samples=74 write: IOPS=10, BW=170KiB/s (174kB/s)(6544KiB/38522msec); 0 zone resets clat (usec): min=1389, max=229489, avg=42108.99, stdev=43138.83 lat (usec): min=1391, max=229493, avg=42120.92, stdev=43135.74 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1893], 10.00th=[ 2999], 20.00th=[ 6652], | 30.00th=[ 11207], 40.00th=[ 16712], 50.00th=[ 25822], 60.00th=[ 39060], | 70.00th=[ 55313], 80.00th=[ 77071], 90.00th=[107480], 95.00th=[131597], | 99.00th=[179307], 99.50th=[185598], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 510, per=26.51%, avg=169.37, stdev=86.69, samples=75 iops : min= 1, max= 31, avg= 9.83, stdev= 5.51, samples=75 lat (usec) : 50=0.52%, 100=4.17%, 750=0.26%, 1000=0.13% lat (msec) : 2=3.39%, 4=4.43%, 10=6.90%, 20=10.16%, 50=27.47% lat (msec) : 100=29.30%, 250=12.89%, 500=0.39% cpu : usr=0.08%, sys=4.12%, ctx=1576, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179422: Mon Aug 24 09:08:28 2026 read: IOPS=10, BW=161KiB/s (165kB/s)(6256KiB/38813msec) clat (usec): min=35, max=421074, avg=57710.76, stdev=45318.81 lat (usec): min=35, max=421076, avg=57721.42, stdev=45323.31 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 79], 20.00th=[ 26084], | 30.00th=[ 35390], 40.00th=[ 44303], 50.00th=[ 51119], 60.00th=[ 59507], | 70.00th=[ 69731], 80.00th=[ 85459], 90.00th=[110625], 95.00th=[137364], | 99.00th=[177210], 99.50th=[274727], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 62, max= 342, per=26.53%, avg=161.04, stdev=64.73, samples=76 iops : min= 3, max= 21, avg= 9.33, stdev= 4.14, samples=76 write: IOPS=9, BW=155KiB/s (159kB/s)(6032KiB/38813msec); 0 zone resets clat (usec): min=1460, max=248632, avg=42372.53, stdev=43852.68 lat (usec): min=1463, max=248633, avg=42388.53, stdev=43854.23 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1958], 10.00th=[ 3458], 20.00th=[ 7242], | 30.00th=[ 11469], 40.00th=[ 17433], 50.00th=[ 27919], 60.00th=[ 39060], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[107480], 95.00th=[137364], | 99.00th=[189793], 99.50th=[223347], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 375, per=24.43%, avg=156.08, stdev=66.10, samples=75 iops : min= 1, max= 23, avg= 9.00, stdev= 4.20, samples=75 lat (usec) : 50=0.91%, 100=5.47%, 250=0.52%, 500=0.13% lat (msec) : 2=2.99%, 4=2.60%, 10=8.33%, 20=7.94%, 50=28.78% lat (msec) : 100=30.21%, 250=11.72%, 500=0.39% cpu : usr=0.05%, sys=4.09%, ctx=1558, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179423: Mon Aug 24 09:08:28 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38099msec) clat (usec): min=35, max=266864, avg=57724.30, stdev=43553.36 lat (usec): min=36, max=266866, avg=57725.84, stdev=43553.38 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 22676], | 30.00th=[ 35914], 40.00th=[ 44827], 50.00th=[ 50594], 60.00th=[ 61604], | 70.00th=[ 72877], 80.00th=[ 87557], 90.00th=[117965], 95.00th=[135267], | 99.00th=[191890], 99.50th=[250610], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 31, max= 378, per=26.10%, avg=158.43, stdev=66.45, samples=74 iops : min= 1, max= 23, avg= 9.14, stdev= 4.26, samples=74 write: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38099msec); 0 zone resets clat (usec): min=1439, max=210902, avg=40775.92, stdev=42691.14 lat (usec): min=1441, max=210905, avg=40840.98, stdev=42706.21 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1811], 10.00th=[ 3163], 20.00th=[ 5800], | 30.00th=[ 10814], 40.00th=[ 17433], 50.00th=[ 25297], 60.00th=[ 36439], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[104334], 95.00th=[127402], | 99.00th=[187696], 99.50th=[200279], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 445, per=25.80%, avg=164.86, stdev=80.98, samples=74 iops : min= 1, max= 27, avg= 9.55, stdev= 5.11, samples=74 lat (usec) : 50=0.13%, 100=6.38%, 250=0.26%, 500=0.39%, 750=0.13% lat (msec) : 2=3.65%, 4=3.65%, 10=7.55%, 20=9.24%, 50=27.99% lat (msec) : 100=27.60%, 250=12.76%, 500=0.26% cpu : usr=0.06%, sys=4.09%, ctx=1551, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=608KiB/s (622kB/s), 149KiB/s-161KiB/s (153kB/s-165kB/s), io=23.4MiB (24.5MB), run=38099-39425msec WRITE: bw=639KiB/s (655kB/s), 155KiB/s-170KiB/s (159kB/s-174kB/s), io=24.6MiB (25.8MB), run=38099-39425msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179425: Mon Aug 24 09:08:49 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(5920KiB/58017msec) clat (msec): min=9, max=333, avg=60.82, stdev=48.40 lat (msec): min=9, max=333, avg=60.83, stdev=48.39 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 67], 80.00th=[ 89], 90.00th=[ 126], 95.00th=[ 159], | 99.00th=[ 222], 99.50th=[ 288], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 310, per=25.70%, avg=105.13, stdev=61.75, samples=110 iops : min= 1, max= 19, avg= 5.74, stdev= 3.92, samples=110 write: IOPS=6, BW=110KiB/s (112kB/s)(6368KiB/58017msec); 0 zone resets clat (msec): min=20, max=374, avg=88.39, stdev=52.61 lat (msec): min=20, max=374, avg=88.39, stdev=52.61 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 35], 10.00th=[ 41], 20.00th=[ 49], | 30.00th=[ 56], 40.00th=[ 64], 50.00th=[ 74], 60.00th=[ 85], | 70.00th=[ 99], 80.00th=[ 116], 90.00th=[ 167], 95.00th=[ 203], | 99.00th=[ 259], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 23, max= 255, per=25.83%, avg=111.32, stdev=54.91, samples=112 iops : min= 1, max= 15, avg= 6.12, stdev= 3.45, samples=112 lat (msec) : 10=0.13%, 20=4.56%, 50=34.77%, 100=37.76%, 250=21.61% lat (msec) : 500=1.17% cpu : usr=0.04%, sys=1.21%, ctx=1076, 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=179427: Mon Aug 24 09:08:49 2026 read: IOPS=6, BW=98.3KiB/s (101kB/s)(5744KiB/58462msec) clat (msec): min=9, max=321, avg=58.81, stdev=50.23 lat (msec): min=9, max=321, avg=58.82, stdev=50.24 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 50], | 70.00th=[ 60], 80.00th=[ 84], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 243], 99.50th=[ 251], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 22, max= 341, per=25.80%, avg=105.52, stdev=69.35, samples=107 iops : min= 1, max= 21, avg= 5.76, stdev= 4.37, samples=107 write: IOPS=6, BW=112KiB/s (115kB/s)(6544KiB/58462msec); 0 zone resets clat (msec): min=20, max=565, avg=90.57, stdev=61.81 lat (msec): min=20, max=565, avg=90.58, stdev=61.81 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 34], 10.00th=[ 39], 20.00th=[ 48], | 30.00th=[ 56], 40.00th=[ 64], 50.00th=[ 72], 60.00th=[ 82], | 70.00th=[ 97], 80.00th=[ 124], 90.00th=[ 167], 95.00th=[ 215], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 30, max= 350, per=26.13%, avg=112.62, stdev=63.52, samples=114 iops : min= 1, max= 21, avg= 6.20, stdev= 4.00, samples=114 lat (msec) : 10=0.39%, 20=5.21%, 50=35.16%, 100=36.20%, 250=21.48% lat (msec) : 500=1.43%, 750=0.13% cpu : usr=0.04%, sys=1.46%, ctx=1162, 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=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=179428: Mon Aug 24 09:08:49 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(6256KiB/56548msec) clat (msec): min=7, max=323, avg=59.81, stdev=51.29 lat (msec): min=7, max=323, avg=59.82, stdev=51.29 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 42], 60.00th=[ 49], | 70.00th=[ 62], 80.00th=[ 84], 90.00th=[ 129], 95.00th=[ 176], | 99.00th=[ 264], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 23, max= 414, per=28.42%, avg=116.25, stdev=74.43, samples=106 iops : min= 1, max= 25, avg= 6.43, stdev= 4.68, samples=106 write: IOPS=6, BW=107KiB/s (109kB/s)(6032KiB/56548msec); 0 zone resets clat (msec): min=16, max=567, avg=87.41, stdev=56.55 lat (msec): min=16, max=567, avg=87.41, stdev=56.55 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 31], 10.00th=[ 36], 20.00th=[ 46], | 30.00th=[ 54], 40.00th=[ 62], 50.00th=[ 71], 60.00th=[ 82], | 70.00th=[ 100], 80.00th=[ 126], 90.00th=[ 161], 95.00th=[ 194], | 99.00th=[ 259], 99.50th=[ 326], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 31, max= 318, per=25.02%, avg=107.83, stdev=60.64, samples=109 iops : min= 1, max= 19, avg= 5.91, stdev= 3.81, samples=109 lat (msec) : 10=0.26%, 20=5.34%, 50=38.54%, 100=33.33%, 250=21.09% lat (msec) : 500=1.30%, 750=0.13% cpu : usr=0.05%, sys=1.24%, ctx=1105, 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=179429: Mon Aug 24 09:08:49 2026 read: IOPS=6, BW=104KiB/s (107kB/s)(6032KiB/57756msec) clat (msec): min=8, max=429, avg=61.50, stdev=53.03 lat (msec): min=8, max=429, avg=61.51, stdev=53.03 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 65], 80.00th=[ 81], 90.00th=[ 130], 95.00th=[ 182], | 99.00th=[ 268], 99.50th=[ 305], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 31, max= 286, per=26.45%, avg=108.17, stdev=64.31, samples=108 iops : min= 1, max= 17, avg= 5.92, stdev= 4.08, samples=108 write: IOPS=6, BW=108KiB/s (111kB/s)(6256KiB/57756msec); 0 zone resets clat (msec): min=16, max=395, avg=88.01, stdev=53.72 lat (msec): min=16, max=395, avg=88.01, stdev=53.72 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 32], 10.00th=[ 39], 20.00th=[ 49], | 30.00th=[ 55], 40.00th=[ 65], 50.00th=[ 72], 60.00th=[ 83], | 70.00th=[ 101], 80.00th=[ 117], 90.00th=[ 159], 95.00th=[ 205], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 351, per=25.81%, avg=111.25, stdev=60.69, samples=110 iops : min= 1, max= 21, avg= 6.13, stdev= 3.80, samples=110 lat (msec) : 10=0.26%, 20=3.65%, 50=36.46%, 100=36.98%, 250=21.09% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.32%, ctx=1165, 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=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=410KiB/s (420kB/s), 98.3KiB/s-111KiB/s (101kB/s-113kB/s), io=23.4MiB (24.5MB), run=56548-58462msec WRITE: bw=431KiB/s (441kB/s), 107KiB/s-112KiB/s (109kB/s-115kB/s), io=24.6MiB (25.8MB), run=56548-58462msec 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=179444: Mon Aug 24 09:09:09 2026 read: IOPS=1, BW=1513KiB/s (1549kB/s)(7168KiB/4738msec) clat (msec): min=179, max=397, avg=259.39, stdev=85.67 lat (msec): min=179, max=397, avg=259.40, stdev=85.67 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 182], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 230], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 355], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 1462, max= 4055, per=91.45%, avg=2876.25, stdev=1342.79, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1081KiB/s (1107kB/s)(5120KiB/4738msec); 0 zone resets clat (msec): min=128, max=1169, avg=543.18, stdev=398.13 lat (msec): min=128, max=1169, avg=543.64, stdev=397.85 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1996, max= 2039, per=45.74%, avg=2014.50, stdev=21.92, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=2.72%, 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=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=179445: Mon Aug 24 09:09:09 2026 read: IOPS=0, BW=315KiB/s (322kB/s)(2048KiB/6510msec) clat (msec): min=209, max=242, avg=225.96, stdev=23.40 lat (msec): min=209, max=242, avg=225.96, stdev=23.40 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1430, max= 2000, per=54.53%, avg=1715.00, stdev=403.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1573KiB/s (1611kB/s)(10.0MiB/6510msec); 0 zone resets clat (msec): min=195, max=1240, avg=573.80, stdev=356.57 lat (msec): min=195, max=1241, avg=573.96, stdev=356.57 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 300], | 30.00th=[ 351], 40.00th=[ 409], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 567], 80.00th=[ 575], 90.00th=[ 1183], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1988, max= 4000, per=51.39%, avg=2263.00, stdev=702.15, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 2000=16.67% cpu : usr=0.02%, sys=3.12%, ctx=93, 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=179446: Mon Aug 24 09:09:09 2026 read: IOPS=1, BW=1248KiB/s (1278kB/s)(6144KiB/4924msec) clat (msec): min=127, max=1563, avg=397.86, stdev=571.40 lat (msec): min=127, max=1563, avg=397.86, stdev=571.40 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 1996, max= 2039, per=64.08%, avg=2015.40, stdev=18.06, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1248KiB/s (1278kB/s)(6144KiB/4924msec); 0 zone resets clat (msec): min=209, max=1037, avg=415.87, stdev=320.11 lat (msec): min=210, max=1037, avg=415.98, stdev=320.10 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 372], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 1996, max= 2876, per=50.67%, avg=2231.50, stdev=430.03, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=66.67%, 500=16.67%, 2000=16.67% cpu : usr=0.02%, sys=2.95%, ctx=85, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179447: Mon Aug 24 09:09:09 2026 read: IOPS=0, BW=870KiB/s (890kB/s)(5120KiB/5888msec) clat (msec): min=127, max=609, avg=244.57, stdev=205.49 lat (msec): min=127, max=609, avg=244.57, stdev=205.49 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 176], 60.00th=[ 176], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1217KiB/s (1247kB/s)(7168KiB/5888msec); 0 zone resets clat (msec): min=200, max=1714, avg=646.99, stdev=534.23 lat (msec): min=200, max=1715, avg=648.07, stdev=535.15 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 224], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 430], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 953], 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= 1617, max= 2043, per=44.22%, avg=1947.67, stdev=163.23, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.65%, ctx=89, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3146KiB/s (3221kB/s), 315KiB/s-1513KiB/s (322kB/s-1549kB/s), io=20.0MiB (20.0MB), run=4738-6510msec WRITE: bw=4404KiB/s (4510kB/s), 1081KiB/s-1573KiB/s (1107kB/s-1611kB/s), io=28.0MiB (29.4MB), run=4738-6510msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179449: Mon Aug 24 09:09:09 2026 read: IOPS=1, BW=1466KiB/s (1501kB/s)(7168KiB/4889msec) clat (usec): min=750, max=329945, avg=187464.74, stdev=134437.11 lat (usec): min=752, max=329947, avg=187466.41, stdev=134437.33 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 1663], | 30.00th=[193987], 40.00th=[193987], 50.00th=[227541], 60.00th=[263193], | 70.00th=[263193], 80.00th=[295699], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 1735, max= 4031, per=85.81%, avg=2736.50, stdev=1054.78, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1047KiB/s (1072kB/s)(5120KiB/4889msec); 0 zone resets clat (msec): min=333, max=1416, avg=704.34, stdev=422.93 lat (msec): min=334, max=1416, avg=704.69, stdev=422.77 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 2015, max= 4079, per=60.69%, avg=2709.67, stdev=1185.92, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=16.67%, 500=33.33%, 750=25.00%, 2000=8.33% cpu : usr=0.06%, sys=8.31%, ctx=177, 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=179450: Mon Aug 24 09:09:09 2026 read: IOPS=0, BW=319KiB/s (327kB/s)(2048KiB/6421msec) clat (usec): min=584, max=276426, avg=138505.49, stdev=195050.11 lat (usec): min=585, max=276429, avg=138507.36, stdev=195050.70 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[ 586], | 30.00th=[ 586], 40.00th=[ 586], 50.00th=[ 586], 60.00th=[274727], | 70.00th=[274727], 80.00th=[274727], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 1577, max= 2035, per=56.63%, avg=1806.00, stdev=323.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1595KiB/s (1633kB/s)(10.0MiB/6421msec); 0 zone resets clat (msec): min=172, max=1181, avg=589.83, stdev=304.51 lat (msec): min=172, max=1182, avg=589.93, stdev=304.51 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 288], | 30.00th=[ 409], 40.00th=[ 527], 50.00th=[ 531], 60.00th=[ 542], | 70.00th=[ 558], 80.00th=[ 693], 90.00th=[ 995], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1735, max= 4071, per=57.46%, avg=2565.43, stdev=1010.54, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=8.33%, 500=25.00%, 750=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.40%, ctx=166, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179451: Mon Aug 24 09:09:09 2026 read: IOPS=1, BW=1470KiB/s (1505kB/s)(6144KiB/4181msec) clat (usec): min=497, max=454088, avg=211979.34, stdev=165660.23 lat (usec): min=499, max=454089, avg=211980.61, stdev=165660.22 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 80217], | 30.00th=[ 80217], 40.00th=[183501], 50.00th=[183501], 60.00th=[217056], | 70.00th=[337642], 80.00th=[337642], 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= 2000, max= 4071, per=79.37%, avg=2531.25, stdev=1026.63, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1470KiB/s (1505kB/s)(6144KiB/4181msec); 0 zone resets clat (msec): min=148, max=752, avg=412.04, stdev=228.02 lat (msec): min=149, max=753, avg=412.15, stdev=228.01 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 430], | 70.00th=[ 600], 80.00th=[ 600], 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= 1735, max= 3984, per=54.61%, avg=2438.50, stdev=1039.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=10.98%, ctx=174, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179452: Mon Aug 24 09:09:09 2026 read: IOPS=0, BW=854KiB/s (874kB/s)(5120KiB/5998msec) clat (usec): min=741, max=528112, avg=272072.37, stdev=257488.77 lat (usec): min=742, max=528113, avg=272073.65, stdev=257488.63 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 742], | 30.00th=[ 2933], 40.00th=[ 2933], 50.00th=[333448], 60.00th=[333448], | 70.00th=[497026], 80.00th=[497026], 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= 2031, max= 4087, per=85.26%, avg=2719.00, stdev=1184.73, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1195KiB/s (1224kB/s)(7168KiB/5998msec); 0 zone resets clat (msec): min=211, max=1491, avg=637.10, stdev=425.41 lat (msec): min=211, max=1491, avg=637.44, stdev=425.38 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 226], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 617], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 684], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 1961, max= 2043, per=45.01%, avg=2009.50, stdev=29.80, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=16.67%, 750=41.67%, 2000=8.33% cpu : usr=0.00%, sys=6.95%, ctx=160, 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=3190KiB/s (3266kB/s), 319KiB/s-1470KiB/s (327kB/s-1505kB/s), io=20.0MiB (20.0MB), run=4181-6421msec WRITE: bw=4465KiB/s (4573kB/s), 1047KiB/s-1595KiB/s (1072kB/s-1633kB/s), io=28.0MiB (29.4MB), run=4181-6421msec 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=179460: Mon Aug 24 09:09:32 2026 read: IOPS=0, BW=1548KiB/s (1585kB/s)(12.0MiB/7939msec) clat (msec): min=772, max=4952, avg=2465.24, stdev=2200.42 lat (msec): min=772, max=4952, avg=2465.24, stdev=2200.42 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 1670], 50.00th=[ 1670], 60.00th=[ 1670], | 70.00th=[ 4933], 80.00th=[ 4933], 90.00th=[ 4933], 95.00th=[ 4933], | 99.00th=[ 4933], 99.50th=[ 4933], 99.90th=[ 4933], 99.95th=[ 4933], | 99.99th=[ 4933] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=1.68%, ctx=55, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179461: Mon Aug 24 09:09:32 2026 read: IOPS=0, BW=550KiB/s (564kB/s)(4096KiB/7442msec) clat (nsec): min=1891.5M, max=1891.5M, avg=1891483476.00, stdev= 0.00 lat (nsec): min=1891.5M, max=1891.5M, avg=1891485910.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1888], 5.00th=[ 1888], 10.00th=[ 1888], 20.00th=[ 1888], | 30.00th=[ 1888], 40.00th=[ 1888], 50.00th=[ 1888], 60.00th=[ 1888], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] 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 write: IOPS=0, BW=1101KiB/s (1127kB/s)(8192KiB/7442msec); 0 zone resets clat (msec): min=707, max=4713, avg=2710.37, stdev=2832.84 lat (msec): min=707, max=4714, avg=2710.88, stdev=2832.86 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 4732], | 70.00th=[ 4732], 80.00th=[ 4732], 90.00th=[ 4732], 95.00th=[ 4732], | 99.00th=[ 4732], 99.50th=[ 4732], 99.90th=[ 4732], 99.95th=[ 4732], | 99.99th=[ 4732] 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) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.59%, 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=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=179462: Mon Aug 24 09:09:32 2026 write: IOPS=0, BW=1600KiB/s (1638kB/s)(12.0MiB/7681msec); 0 zone resets clat (msec): min=840, max=5044, avg=2395.14, stdev=2305.79 lat (msec): min=840, max=5044, avg=2396.17, stdev=2305.46 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 5067], 80.00th=[ 5067], 90.00th=[ 5067], 95.00th=[ 5067], | 99.00th=[ 5067], 99.50th=[ 5067], 99.90th=[ 5067], 99.95th=[ 5067], | 99.99th=[ 5067] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.16%, sys=2.80%, ctx=104, 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=179464: Mon Aug 24 09:09:32 2026 write: IOPS=0, BW=1721KiB/s (1762kB/s)(12.0MiB/7141msec); 0 zone resets clat (msec): min=287, max=5872, avg=2218.03, stdev=3166.77 lat (msec): min=287, max=5873, avg=2218.49, stdev=3166.72 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 5873], 80.00th=[ 5873], 90.00th=[ 5873], 95.00th=[ 5873], | 99.00th=[ 5873], 99.50th=[ 5873], 99.90th=[ 5873], 99.95th=[ 5873], | 99.99th=[ 5873] bw ( KiB/s): min= 8062, max= 8175, per=100.00%, avg=8118.50, stdev=79.90, 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=0.13%, sys=1.97%, ctx=60, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2064KiB/s (2113kB/s), 550KiB/s-1548KiB/s (564kB/s-1585kB/s), io=16.0MiB (16.8MB), run=7442-7939msec WRITE: bw=4266KiB/s (4368kB/s), 1101KiB/s-1721KiB/s (1127kB/s-1762kB/s), io=32.0MiB (33.6MB), run=7141-7681msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179463: Mon Aug 24 09:09:33 2026 read: IOPS=0, BW=1898KiB/s (1944kB/s)(12.0MiB/6474msec) clat (msec): min=953, max=4319, avg=2088.55, stdev=1932.23 lat (msec): min=953, max=4319, avg=2088.55, stdev=1932.22 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 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= 8047, per=100.00%, avg=8039.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.11%, sys=4.96%, ctx=785, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179465: Mon Aug 24 09:09:33 2026 read: IOPS=0, BW=651KiB/s (666kB/s)(4096KiB/6294msec) clat (nsec): min=972816k, max=972816k, avg=972815907.00, stdev= 0.00 lat (nsec): min=972818k, max=972818k, avg=972818249.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 969], 80.00th=[ 969], 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= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1302KiB/s (1333kB/s)(8192KiB/6294msec); 0 zone resets clat (msec): min=685, max=4232, avg=2458.80, stdev=2508.01 lat (msec): min=686, max=4236, avg=2461.34, stdev=2510.64 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 4245], | 70.00th=[ 4245], 80.00th=[ 4245], 90.00th=[ 4245], 95.00th=[ 4245], | 99.00th=[ 4245], 99.50th=[ 4245], 99.90th=[ 4245], 99.95th=[ 4245], | 99.99th=[ 4245] 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 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.32%, sys=4.00%, ctx=198, 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=179466: Mon Aug 24 09:09:33 2026 write: IOPS=0, BW=1575KiB/s (1613kB/s)(12.0MiB/7802msec); 0 zone resets clat (msec): min=600, max=5838, avg=2530.83, stdev=2878.02 lat (msec): min=601, max=5839, avg=2531.24, stdev=2877.88 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 5873], 80.00th=[ 5873], 90.00th=[ 5873], 95.00th=[ 5873], | 99.00th=[ 5873], 99.50th=[ 5873], 99.90th=[ 5873], 99.95th=[ 5873], | 99.99th=[ 5873] bw ( KiB/s): min= 7937, max= 8159, per=100.00%, avg=8048.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.13%, sys=1.15%, ctx=52, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179467: Mon Aug 24 09:09:33 2026 write: IOPS=0, BW=1729KiB/s (1770kB/s)(12.0MiB/7108msec); 0 zone resets clat (msec): min=585, max=5608, avg=2336.14, stdev=2836.42 lat (msec): min=586, max=5611, avg=2337.18, stdev=2837.60 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 5604], 80.00th=[ 5604], 90.00th=[ 5604], 95.00th=[ 5604], | 99.00th=[ 5604], 99.50th=[ 5604], 99.90th=[ 5604], 99.95th=[ 5604], | 99.99th=[ 5604] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=1.80%, ctx=45, 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=2531KiB/s (2591kB/s), 651KiB/s-1898KiB/s (666kB/s-1944kB/s), io=16.0MiB (16.8MB), run=6294-6474msec WRITE: bw=4200KiB/s (4301kB/s), 1302KiB/s-1729KiB/s (1333kB/s-1770kB/s), io=32.0MiB (33.6MB), run=6294-7802msec