== sanity test 398b: DIO and buffer IO race ============== 07:03:08 (1788692588) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.74737 s, 5.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178704: Sun Sep 6 07:05:28 2026 read: IOPS=13, BW=53.4KiB/s (54.7kB/s)(5992KiB/112160msec) clat (usec): min=43, max=296277, avg=41707.61, stdev=28650.02 lat (usec): min=44, max=296279, avg=41711.47, stdev=28649.76 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 10028], 10.00th=[ 15401], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 41681], | 70.00th=[ 47973], 80.00th=[ 58459], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[143655], 99.50th=[162530], 99.90th=[235930], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 135, per=25.66%, avg=53.62, stdev=20.80, samples=218 iops : min= 1, max= 33, avg=12.77, stdev= 5.23, samples=218 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(6296KiB/112160msec); 0 zone resets clat (usec): min=878, max=1557.3k, avg=31279.88, stdev=50921.24 lat (usec): min=878, max=1557.3k, avg=31282.39, stdev=50920.89 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1123], 10.00th=[ 1237], | 20.00th=[ 2474], 30.00th=[ 5211], 40.00th=[ 11863], | 50.00th=[ 20579], 60.00th=[ 28705], 70.00th=[ 38536], | 80.00th=[ 53740], 90.00th=[ 76022], 95.00th=[ 98042], | 99.00th=[ 139461], 99.50th=[ 185598], 99.90th=[ 225444], | 99.95th=[1551893], 99.99th=[1551893] bw ( KiB/s): min= 7, max= 132, per=25.76%, avg=56.40, stdev=24.20, samples=218 iops : min= 1, max= 33, avg=13.48, stdev= 6.08, samples=218 lat (usec) : 50=0.23%, 100=1.56%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.33% lat (msec) : 2=8.63%, 4=4.26%, 10=6.67%, 20=12.43%, 50=40.72% lat (msec) : 100=20.83%, 250=4.10%, 500=0.03%, 2000=0.03% cpu : usr=0.10%, sys=5.41%, ctx=6095, 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=178705: Sun Sep 6 07:05:28 2026 read: IOPS=13, BW=53.1KiB/s (54.3kB/s)(5940KiB/111930msec) clat (usec): min=41, max=274747, avg=41198.55, stdev=27142.54 lat (usec): min=41, max=274747, avg=41212.78, stdev=27146.44 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11731], 10.00th=[ 16188], 20.00th=[ 21365], | 30.00th=[ 25822], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 47973], 80.00th=[ 57410], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[139461], 99.50th=[156238], 99.90th=[217056], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 103, per=25.62%, avg=53.54, stdev=19.89, samples=217 iops : min= 1, max= 25, avg=12.75, stdev= 4.98, samples=217 write: IOPS=14, BW=56.7KiB/s (58.1kB/s)(6348KiB/111930msec); 0 zone resets clat (usec): min=763, max=1571.2k, avg=31766.19, stdev=50712.09 lat (usec): min=765, max=1571.2k, avg=31767.91, stdev=50712.26 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1287], | 20.00th=[ 2802], 30.00th=[ 5407], 40.00th=[ 12518], | 50.00th=[ 22152], 60.00th=[ 29230], 70.00th=[ 40109], | 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 98042], | 99.00th=[ 156238], 99.50th=[ 160433], 99.90th=[ 212861], | 99.95th=[1568670], 99.99th=[1568670] bw ( KiB/s): min= 8, max= 135, per=25.84%, avg=56.58, stdev=25.53, samples=219 iops : min= 2, max= 33, avg=13.52, stdev= 6.42, samples=219 lat (usec) : 50=0.13%, 100=1.73%, 250=0.03%, 500=0.07%, 1000=0.39% lat (msec) : 2=7.75%, 4=5.27%, 10=6.09%, 20=11.17%, 50=42.19% lat (msec) : 100=21.13%, 250=4.00%, 500=0.03%, 2000=0.03% cpu : usr=0.10%, sys=5.48%, ctx=6199, 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=178706: Sun Sep 6 07:05:28 2026 read: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6028KiB/109974msec) clat (usec): min=38, max=224502, avg=39405.19, stdev=26473.03 lat (usec): min=38, max=224503, avg=39416.07, stdev=26477.95 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 5342], 10.00th=[ 14091], 20.00th=[ 19530], | 30.00th=[ 23987], 40.00th=[ 28181], 50.00th=[ 33162], 60.00th=[ 40109], | 70.00th=[ 46400], 80.00th=[ 56886], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[125305], 99.50th=[143655], 99.90th=[183501], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 15, max= 127, per=26.33%, avg=55.03, stdev=23.30, samples=214 iops : min= 3, max= 31, avg=13.12, stdev= 5.87, samples=214 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(6260KiB/109974msec); 0 zone resets clat (usec): min=679, max=1677.6k, avg=32071.46, stdev=53720.03 lat (usec): min=680, max=1677.6k, avg=32073.19, stdev=53719.87 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1139], 10.00th=[ 1237], | 20.00th=[ 2474], 30.00th=[ 5473], 40.00th=[ 12125], | 50.00th=[ 21103], 60.00th=[ 28967], 70.00th=[ 40109], | 80.00th=[ 55313], 90.00th=[ 78119], 95.00th=[ 100140], | 99.00th=[ 147850], 99.50th=[ 187696], 99.90th=[ 229639], | 99.95th=[1669333], 99.99th=[1669333] bw ( KiB/s): min= 7, max= 133, per=26.06%, avg=57.07, stdev=23.62, samples=214 iops : min= 1, max= 33, avg=13.64, stdev= 5.96, samples=214 lat (usec) : 50=0.33%, 100=1.82%, 250=0.16%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=8.33%, 4=4.46%, 10=6.51%, 20=13.09%, 50=40.62% lat (msec) : 100=20.05%, 250=4.13%, 2000=0.03% cpu : usr=0.09%, sys=5.41%, ctx=6189, 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=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=178707: Sun Sep 6 07:05:28 2026 read: IOPS=13, BW=52.8KiB/s (54.1kB/s)(6052KiB/114637msec) clat (usec): min=36, max=1652.1k, avg=41788.45, stdev=50913.19 lat (usec): min=37, max=1652.1k, avg=41791.75, stdev=50911.84 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 293], 10.00th=[ 15139], | 20.00th=[ 20579], 30.00th=[ 24773], 40.00th=[ 30016], | 50.00th=[ 34866], 60.00th=[ 40633], 70.00th=[ 47973], | 80.00th=[ 55837], 90.00th=[ 72877], 95.00th=[ 90702], | 99.00th=[ 162530], 99.50th=[ 212861], 99.90th=[ 329253], | 99.95th=[1652556], 99.99th=[1652556] bw ( KiB/s): min= 7, max= 119, per=25.51%, avg=53.32, stdev=20.50, samples=222 iops : min= 1, max= 29, avg=12.69, stdev= 5.17, samples=222 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6236KiB/114637msec); 0 zone resets clat (usec): min=740, max=290772, avg=32781.99, stdev=34867.39 lat (usec): min=741, max=290774, avg=32783.59, stdev=34867.70 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1287], 20.00th=[ 2999], | 30.00th=[ 6456], 40.00th=[ 15795], 50.00th=[ 23462], 60.00th=[ 31589], | 70.00th=[ 43254], 80.00th=[ 56361], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[185598], 99.90th=[246416], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 133, per=24.96%, avg=54.66, stdev=22.03, samples=223 iops : min= 1, max= 33, avg=13.04, stdev= 5.54, samples=223 lat (usec) : 50=0.36%, 100=1.89%, 250=0.20%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.26% lat (msec) : 2=7.68%, 4=4.17%, 10=5.79%, 20=11.78%, 50=41.99% lat (msec) : 100=21.74%, 250=3.91%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.12%, ctx=6148, 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=209KiB/s (214kB/s), 52.8KiB/s-54.8KiB/s (54.1kB/s-56.1kB/s), io=23.4MiB (24.6MB), run=109974-114637msec WRITE: bw=219KiB/s (225kB/s), 54.4KiB/s-56.9KiB/s (55.7kB/s-58.3kB/s), io=24.6MiB (25.7MB), run=109974-114637msec fio: pid=178712, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=178709: Sun Sep 6 07:06:11 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5992KiB/156925msec) clat (msec): min=4, max=1884, avg=40.86, stdev=58.89 lat (msec): min=4, max=1884, avg=40.86, stdev=58.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 113], | 99.00th=[ 167], 99.50th=[ 192], 99.90th=[ 334], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7, max= 142, per=25.52%, avg=38.79, stdev=25.60, samples=301 iops : min= 1, max= 35, avg= 9.06, stdev= 6.43, samples=301 write: IOPS=10, BW=40.1KiB/s (41.1kB/s)(6296KiB/156925msec); 0 zone resets clat (msec): min=9, max=370, avg=60.71, stdev=44.84 lat (msec): min=9, max=370, avg=60.71, stdev=44.84 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 116], 95.00th=[ 144], | 99.00th=[ 243], 99.50th=[ 275], 99.90th=[ 347], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7, max= 136, per=25.31%, avg=40.25, stdev=24.16, samples=305 iops : min= 1, max= 34, avg= 9.42, stdev= 6.08, samples=305 lat (msec) : 10=2.54%, 20=16.15%, 50=46.55%, 100=23.96%, 250=10.22% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.06%, sys=1.84%, ctx=4814, 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=178710: Sun Sep 6 07:06:11 2026 read: IOPS=9, BW=37.9KiB/s (38.8kB/s)(5940KiB/156845msec) clat (msec): min=4, max=1793, avg=41.68, stdev=58.85 lat (msec): min=4, max=1793, avg=41.68, stdev=58.85 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 92], 95.00th=[ 118], | 99.00th=[ 192], 99.50th=[ 211], 99.90th=[ 321], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 142, per=25.51%, avg=38.77, stdev=25.90, samples=299 iops : min= 1, max= 35, avg= 9.05, stdev= 6.52, samples=299 write: IOPS=10, BW=40.5KiB/s (41.4kB/s)(6348KiB/156845msec); 0 zone resets clat (msec): min=9, max=378, avg=59.75, stdev=43.09 lat (msec): min=9, max=378, avg=59.75, stdev=43.09 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 114], 95.00th=[ 146], | 99.00th=[ 222], 99.50th=[ 232], 99.90th=[ 338], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 128, per=25.63%, avg=40.75, stdev=24.53, samples=304 iops : min= 1, max= 32, avg= 9.55, stdev= 6.17, samples=304 lat (msec) : 10=2.31%, 20=16.28%, 50=46.61%, 100=24.09%, 250=10.38% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=1.79%, ctx=4763, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178711: Sun Sep 6 07:06:11 2026 read: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6028KiB/156884msec) clat (msec): min=5, max=350, avg=41.19, stdev=37.28 lat (msec): min=5, max=350, avg=41.19, stdev=37.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 88], 95.00th=[ 118], | 99.00th=[ 190], 99.50th=[ 218], 99.90th=[ 321], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 151, per=25.43%, avg=38.65, stdev=25.11, samples=304 iops : min= 1, max= 37, avg= 9.02, stdev= 6.30, samples=304 write: IOPS=9, BW=39.9KiB/s (40.9kB/s)(6260KiB/156884msec); 0 zone resets clat (msec): min=7, max=1840, avg=60.49, stdev=60.95 lat (msec): min=7, max=1840, avg=60.50, stdev=60.95 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 57], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 111], 95.00th=[ 140], | 99.00th=[ 228], 99.50th=[ 262], 99.90th=[ 305], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 135, per=25.15%, avg=39.99, stdev=24.62, samples=305 iops : min= 1, max= 33, avg= 9.36, stdev= 6.19, samples=305 lat (msec) : 10=1.95%, 20=15.85%, 50=46.42%, 100=25.55%, 250=9.80% lat (msec) : 500=0.39%, 2000=0.03% cpu : usr=0.06%, sys=1.86%, ctx=4868, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=178712: Sun Sep 6 07:06:11 2026 read: IOPS=9, BW=38.0KiB/s (38.0kB/s)(5928KiB/155809msec) clat (msec): min=5, max=342, avg=41.11, stdev=37.09 lat (msec): min=5, max=342, avg=41.12, stdev=37.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 91], 95.00th=[ 117], | 99.00th=[ 186], 99.50th=[ 215], 99.90th=[ 305], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 135, per=25.35%, avg=38.54, stdev=25.46, samples=300 iops : min= 1, max= 33, avg= 9.00, stdev= 6.39, samples=300 write: IOPS=9, BW=39.2KiB/s (40.2kB/s)(6112KiB/155809msec); 0 zone resets clat (msec): min=10, max=1846, avg=61.98, stdev=62.32 lat (msec): min=10, max=1846, avg=61.98, stdev=62.32 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 69], 80.00th=[ 88], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 226], 99.50th=[ 266], 99.90th=[ 359], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 135, per=24.76%, avg=39.37, stdev=23.72, samples=303 iops : min= 1, max= 33, avg= 9.20, stdev= 5.96, samples=303 lat (msec) : 10=2.36%, 20=16.21%, 50=45.07%, 100=24.91%, 250=11.06% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.06%, sys=1.76%, ctx=4610, majf=0, minf=20 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1483,1528,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=152KiB/s (156kB/s), 37.9KiB/s-38.4KiB/s (38.8kB/s-39.3kB/s), io=23.3MiB (24.5MB), run=155809-156925msec WRITE: bw=159KiB/s (163kB/s), 39.2KiB/s-40.5KiB/s (40.2kB/s-41.4kB/s), io=24.4MiB (25.6MB), run=155809-156925msec 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=178753: Sun Sep 6 07:06:58 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(5920KiB/32409msec) clat (usec): min=38, max=256221, avg=49409.88, stdev=35901.88 lat (usec): min=38, max=256223, avg=49426.55, stdev=35967.82 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 105], 20.00th=[ 23462], | 30.00th=[ 29230], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 49546], | 70.00th=[ 62129], 80.00th=[ 73925], 90.00th=[ 94897], 95.00th=[105382], | 99.00th=[177210], 99.50th=[202376], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 318, per=26.51%, avg=183.16, stdev=69.86, samples=63 iops : min= 1, max= 19, avg=10.70, stdev= 4.43, samples=63 write: IOPS=12, BW=196KiB/s (201kB/s)(6368KiB/32409msec); 0 zone resets clat (usec): min=1285, max=205859, avg=34691.38, stdev=36458.45 lat (usec): min=1286, max=205861, avg=34694.28, stdev=36457.92 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1844], 10.00th=[ 2638], 20.00th=[ 5145], | 30.00th=[ 7963], 40.00th=[ 13304], 50.00th=[ 20841], 60.00th=[ 30016], | 70.00th=[ 45351], 80.00th=[ 66323], 90.00th=[ 86508], 95.00th=[ 99091], | 99.00th=[164627], 99.50th=[204473], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 21, max= 443, per=27.18%, avg=197.63, stdev=94.45, samples=63 iops : min= 1, max= 27, avg=11.62, stdev= 5.98, samples=63 lat (usec) : 50=0.39%, 100=4.17%, 250=0.39%, 750=0.26% lat (msec) : 2=3.39%, 4=4.43%, 10=10.81%, 20=8.98%, 50=34.11% lat (msec) : 100=26.56%, 250=6.38%, 500=0.13% cpu : usr=0.07%, sys=5.62%, ctx=1549, 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=178756: Sun Sep 6 07:06:58 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34649msec) clat (usec): min=42, max=321763, avg=50137.97, stdev=35667.51 lat (usec): min=42, max=321765, avg=50140.16, stdev=35667.61 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 11076], 20.00th=[ 25560], | 30.00th=[ 31851], 40.00th=[ 38536], 50.00th=[ 44827], 60.00th=[ 51643], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[162530], 99.50th=[204473], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 21, max= 374, per=23.93%, avg=165.34, stdev=71.52, samples=67 iops : min= 1, max= 23, avg= 9.60, stdev= 4.48, samples=67 write: IOPS=11, BW=189KiB/s (193kB/s)(6544KiB/34649msec); 0 zone resets clat (usec): min=1233, max=274328, avg=39463.68, stdev=42261.72 lat (usec): min=1235, max=274330, avg=39470.15, stdev=42266.83 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1827], 10.00th=[ 2769], 20.00th=[ 6652], | 30.00th=[ 9372], 40.00th=[ 17695], 50.00th=[ 26346], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 66323], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[181404], 99.50th=[204473], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 43, max= 593, per=25.94%, avg=188.57, stdev=88.26, samples=67 iops : min= 2, max= 37, avg=11.06, stdev= 5.65, samples=67 lat (usec) : 50=0.39%, 100=2.86%, 250=0.91%, 750=0.13% lat (msec) : 2=3.26%, 4=4.04%, 10=9.64%, 20=8.59%, 50=35.29% lat (msec) : 100=26.43%, 250=8.20%, 500=0.26% cpu : usr=0.08%, sys=5.27%, ctx=1685, 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=178758: Sun Sep 6 07:06:58 2026 read: IOPS=11, BW=186KiB/s (191kB/s)(6256KiB/33547msec) clat (usec): min=39, max=146169, avg=45703.22, stdev=30213.85 lat (usec): min=39, max=146171, avg=45717.67, stdev=30211.64 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 19792], | 30.00th=[ 30016], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 52167], | 70.00th=[ 60031], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[100140], | 99.00th=[121111], 99.50th=[141558], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 63, max= 443, per=27.22%, avg=188.09, stdev=66.16, samples=64 iops : min= 3, max= 27, avg=11.02, stdev= 4.22, samples=64 write: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33547msec); 0 zone resets clat (usec): min=1515, max=188337, avg=40404.15, stdev=38161.29 lat (usec): min=1517, max=188340, avg=40406.67, stdev=38161.10 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1811], 10.00th=[ 2704], 20.00th=[ 6259], | 30.00th=[ 10814], 40.00th=[ 20841], 50.00th=[ 30278], 60.00th=[ 41681], | 70.00th=[ 53216], 80.00th=[ 66323], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[166724], 99.50th=[181404], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 378, per=24.20%, avg=175.91, stdev=74.92, samples=65 iops : min= 1, max= 23, avg=10.26, stdev= 4.76, samples=65 lat (usec) : 50=0.78%, 100=5.99%, 250=0.13%, 500=0.13% lat (msec) : 2=3.65%, 4=4.04%, 10=7.16%, 20=7.55%, 50=32.29% lat (msec) : 100=31.51%, 250=6.77% cpu : usr=0.08%, sys=5.52%, ctx=1651, 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=178759: Sun Sep 6 07:06:58 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(6032KiB/33405msec) clat (usec): min=34, max=187322, avg=47169.94, stdev=32118.82 lat (usec): min=35, max=187324, avg=47171.28, stdev=32118.83 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 701], 20.00th=[ 22414], | 30.00th=[ 29754], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 58459], 80.00th=[ 70779], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[162530], 99.50th=[179307], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 30, max= 382, per=26.07%, avg=180.14, stdev=64.71, samples=65 iops : min= 1, max= 23, avg=10.52, stdev= 4.11, samples=65 write: IOPS=11, BW=187KiB/s (192kB/s)(6256KiB/33405msec); 0 zone resets clat (usec): min=1283, max=248008, avg=39649.33, stdev=39179.71 lat (usec): min=1285, max=248010, avg=39651.53, stdev=39179.73 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1844], 10.00th=[ 2638], 20.00th=[ 6325], | 30.00th=[ 11600], 40.00th=[ 20317], 50.00th=[ 28705], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 66323], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[173016], 99.50th=[204473], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 407, per=25.82%, avg=187.71, stdev=74.13, samples=65 iops : min= 1, max= 25, avg=11.00, stdev= 4.73, samples=65 lat (usec) : 50=0.52%, 100=4.17%, 250=0.13%, 750=0.13% lat (msec) : 2=3.52%, 4=4.04%, 10=6.64%, 20=9.38%, 50=36.98% lat (msec) : 100=27.60%, 250=6.90% cpu : usr=0.05%, sys=5.28%, ctx=1636, 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=691KiB/s (708kB/s), 166KiB/s-186KiB/s (170kB/s-191kB/s), io=23.4MiB (24.5MB), run=32409-34649msec WRITE: bw=727KiB/s (745kB/s), 180KiB/s-196KiB/s (184kB/s-201kB/s), io=24.6MiB (25.8MB), run=32409-34649msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178754: Sun Sep 6 07:07:08 2026 read: IOPS=8, BW=133KiB/s (136kB/s)(5920KiB/44571msec) clat (msec): min=6, max=379, avg=47.61, stdev=46.92 lat (msec): min=6, max=379, avg=47.62, stdev=46.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 71], 90.00th=[ 113], 95.00th=[ 144], | 99.00th=[ 220], 99.50th=[ 279], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 30, max= 509, per=24.81%, avg=133.24, stdev=97.50, samples=85 iops : min= 1, max= 31, avg= 7.58, stdev= 6.20, samples=85 write: IOPS=8, BW=143KiB/s (146kB/s)(6368KiB/44571msec); 0 zone resets clat (msec): min=12, max=318, avg=66.86, stdev=49.28 lat (msec): min=12, max=318, avg=66.87, stdev=49.28 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 34], 40.00th=[ 42], 50.00th=[ 53], 60.00th=[ 64], | 70.00th=[ 79], 80.00th=[ 100], 90.00th=[ 136], 95.00th=[ 174], | 99.00th=[ 232], 99.50th=[ 257], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 444, per=25.69%, avg=145.13, stdev=98.91, samples=85 iops : min= 1, max= 27, avg= 8.32, stdev= 6.24, samples=85 lat (msec) : 10=1.95%, 20=16.15%, 50=41.41%, 100=24.61%, 250=15.36% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.64%, ctx=1123, 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=178755: Sun Sep 6 07:07:08 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(5744KiB/44147msec) clat (msec): min=6, max=179, avg=41.31, stdev=34.20 lat (msec): min=6, max=179, avg=41.32, stdev=34.20 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 92], 95.00th=[ 120], | 99.00th=[ 167], 99.50th=[ 180], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 22, max= 509, per=25.57%, avg=137.30, stdev=102.23, samples=81 iops : min= 1, max= 31, avg= 7.83, stdev= 6.44, samples=81 write: IOPS=9, BW=148KiB/s (152kB/s)(6544KiB/44147msec); 0 zone resets clat (msec): min=12, max=300, avg=70.86, stdev=51.74 lat (msec): min=12, max=300, avg=70.86, stdev=51.74 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 112], 90.00th=[ 146], 95.00th=[ 178], | 99.00th=[ 241], 99.50th=[ 264], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 539, per=25.98%, avg=146.77, stdev=99.11, samples=86 iops : min= 1, max= 33, avg= 8.43, stdev= 6.26, samples=86 lat (msec) : 10=2.21%, 20=13.93%, 50=44.53%, 100=23.44%, 250=15.36% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.68%, ctx=1133, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178757: Sun Sep 6 07:07:08 2026 read: IOPS=8, BW=142KiB/s (145kB/s)(6256KiB/44040msec) clat (msec): min=7, max=305, avg=45.24, stdev=41.62 lat (msec): min=7, max=305, avg=45.24, stdev=41.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 49], 80.00th=[ 69], 90.00th=[ 101], 95.00th=[ 120], | 99.00th=[ 218], 99.50th=[ 224], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 541, per=26.92%, avg=144.55, stdev=115.96, samples=85 iops : min= 1, max= 33, avg= 8.27, stdev= 7.28, samples=85 write: IOPS=8, BW=137KiB/s (140kB/s)(6032KiB/44040msec); 0 zone resets clat (msec): min=13, max=306, avg=69.77, stdev=50.97 lat (msec): min=13, max=306, avg=69.78, stdev=50.98 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 85], 80.00th=[ 104], 90.00th=[ 142], 95.00th=[ 176], | 99.00th=[ 271], 99.50th=[ 305], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 384, per=24.45%, avg=138.17, stdev=88.18, samples=84 iops : min= 1, max= 24, avg= 7.88, stdev= 5.63, samples=84 lat (msec) : 10=2.47%, 20=14.19%, 50=43.23%, 100=24.48%, 250=14.97% lat (msec) : 500=0.65% cpu : usr=0.06%, sys=1.67%, ctx=1172, 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=178760: Sun Sep 6 07:07:08 2026 read: IOPS=8, BW=135KiB/s (139kB/s)(6032KiB/44566msec) clat (msec): min=5, max=437, avg=49.19, stdev=49.01 lat (msec): min=5, max=437, avg=49.19, stdev=49.02 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 52], 80.00th=[ 75], 90.00th=[ 111], 95.00th=[ 140], | 99.00th=[ 230], 99.50th=[ 275], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 30, max= 480, per=26.51%, avg=142.35, stdev=102.76, samples=82 iops : min= 1, max= 30, avg= 8.15, stdev= 6.48, samples=82 write: IOPS=8, BW=140KiB/s (144kB/s)(6256KiB/44566msec); 0 zone resets clat (msec): min=13, max=302, avg=65.54, stdev=49.77 lat (msec): min=13, max=302, avg=65.55, stdev=49.77 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 58], | 70.00th=[ 81], 80.00th=[ 105], 90.00th=[ 136], 95.00th=[ 169], | 99.00th=[ 222], 99.50th=[ 236], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 22, max= 476, per=24.57%, avg=138.84, stdev=106.50, samples=87 iops : min= 1, max= 29, avg= 7.92, stdev= 6.74, samples=87 lat (msec) : 10=1.69%, 20=15.36%, 50=44.27%, 100=20.96%, 250=17.32% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.66%, ctx=1203, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=537KiB/s (550kB/s), 130KiB/s-142KiB/s (133kB/s-145kB/s), io=23.4MiB (24.5MB), run=44040-44571msec WRITE: bw=565KiB/s (579kB/s), 137KiB/s-148KiB/s (140kB/s-152kB/s), io=24.6MiB (25.8MB), run=44040-44571msec 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=178773: Sun Sep 6 07:07:22 2026 read: IOPS=2, BW=2688KiB/s (2752kB/s)(7168KiB/2667msec) clat (usec): min=512, max=320970, avg=150143.24, stdev=95027.18 lat (usec): min=513, max=320971, avg=150144.67, stdev=95027.42 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[103285], | 30.00th=[149947], 40.00th=[149947], 50.00th=[152044], 60.00th=[154141], | 70.00th=[154141], 80.00th=[170918], 90.00th=[320865], 95.00th=[320865], | 99.00th=[320865], 99.50th=[320865], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 2048, max= 4015, per=61.97%, avg=3074.33, stdev=986.29, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1920KiB/s (1966kB/s)(5120KiB/2667msec); 0 zone resets clat (msec): min=113, max=423, avg=281.65, stdev=133.46 lat (msec): min=113, max=423, avg=281.79, stdev=133.53 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 414], 80.00th=[ 414], 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= 2007, max= 3878, per=42.37%, avg=2942.50, stdev=1323.00, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=13.84%, ctx=162, 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=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=178774: Sun Sep 6 07:07:22 2026 read: IOPS=0, BW=496KiB/s (508kB/s)(2048KiB/4128msec) clat (msec): min=146, max=185, avg=166.27, stdev=27.50 lat (msec): min=146, max=185, avg=166.28, stdev=27.50 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 1492, max= 2031, per=35.51%, avg=1761.50, stdev=381.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2481KiB/s (2540kB/s)(10.0MiB/4128msec); 0 zone resets clat (msec): min=205, max=666, avg=347.30, stdev=148.25 lat (msec): min=205, max=666, avg=347.39, stdev=148.25 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 209], | 30.00th=[ 236], 40.00th=[ 243], 50.00th=[ 251], 60.00th=[ 355], | 70.00th=[ 426], 80.00th=[ 439], 90.00th=[ 447], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1939, max= 4015, per=37.93%, avg=2634.50, stdev=999.62, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=50.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=13.40%, ctx=162, 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=178775: Sun Sep 6 07:07:22 2026 read: IOPS=1, BW=1786KiB/s (1828kB/s)(6144KiB/3441msec) clat (usec): min=467, max=407797, avg=133824.41, stdev=167043.10 lat (usec): min=467, max=407798, avg=133825.37, stdev=167043.41 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 1139], | 30.00th=[ 1139], 40.00th=[ 1663], 50.00th=[ 1663], 60.00th=[152044], | 70.00th=[240124], 80.00th=[240124], 90.00th=[408945], 95.00th=[408945], | 99.00th=[408945], 99.50th=[408945], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 2031, max= 4096, per=67.22%, avg=3335.00, stdev=1134.55, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1786KiB/s (1828kB/s)(6144KiB/3441msec); 0 zone resets clat (msec): min=163, max=867, avg=425.18, stdev=315.00 lat (msec): min=163, max=867, avg=425.47, stdev=315.33 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 284], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1939, max= 4096, per=45.00%, avg=3125.00, stdev=1094.45, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (usec) : 500=8.33% lat (msec) : 2=16.67%, 250=41.67%, 500=16.67%, 1000=16.67% cpu : usr=0.00%, sys=11.16%, ctx=160, 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=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=178777: Sun Sep 6 07:07:22 2026 read: IOPS=2, BW=2076KiB/s (2126kB/s)(5120KiB/2466msec) clat (usec): min=547, max=228305, avg=99788.43, stdev=109441.24 lat (usec): min=548, max=228306, avg=99789.94, stdev=109441.43 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 545], | 30.00th=[ 9634], 40.00th=[ 9634], 50.00th=[ 54264], 60.00th=[ 54264], | 70.00th=[206570], 80.00th=[206570], 90.00th=[227541], 95.00th=[227541], | 99.00th=[227541], 99.50th=[227541], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2907KiB/s (2976kB/s)(7168KiB/2466msec); 0 zone resets clat (msec): min=168, max=521, avg=273.78, stdev=114.84 lat (msec): min=168, max=521, avg=273.99, stdev=114.87 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 218], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 253], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 275], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1528, max= 4015, per=41.29%, avg=2867.25, stdev=1265.40, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=15.74%, ctx=150, 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=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=4961KiB/s (5080kB/s), 496KiB/s-2688KiB/s (508kB/s-2752kB/s), io=20.0MiB (20.0MB), run=2466-4128msec WRITE: bw=6946KiB/s (7112kB/s), 1786KiB/s-2907KiB/s (1828kB/s-2976kB/s), io=28.0MiB (29.4MB), run=2466-4128msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178778: Sun Sep 6 07:07:22 2026 read: IOPS=1, BW=1828KiB/s (1872kB/s)(7168KiB/3922msec) clat (msec): min=71, max=566, avg=241.95, stdev=188.22 lat (msec): min=71, max=566, avg=241.95, stdev=188.22 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 201], 60.00th=[ 209], | 70.00th=[ 209], 80.00th=[ 435], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1471, max= 4087, per=59.11%, avg=2881.75, stdev=1326.94, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1305KiB/s (1337kB/s)(5120KiB/3922msec); 0 zone resets clat (msec): min=117, max=745, avg=409.72, stdev=240.22 lat (msec): min=117, max=745, avg=409.82, stdev=240.22 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2003, max= 5953, per=58.29%, avg=3978.00, stdev=2793.07, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.08%, sys=4.95%, ctx=95, 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=178779: Sun Sep 6 07:07:22 2026 read: IOPS=0, BW=488KiB/s (499kB/s)(2048KiB/4201msec) clat (msec): min=390, max=480, avg=435.60, stdev=63.96 lat (msec): min=390, max=480, avg=435.60, stdev=63.96 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 1406, max= 1984, per=34.77%, avg=1695.00, stdev=408.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2438KiB/s (2496kB/s)(10.0MiB/4201msec); 0 zone resets clat (msec): min=103, max=957, avg=324.61, stdev=240.59 lat (msec): min=104, max=957, avg=324.78, stdev=240.60 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 108], | 30.00th=[ 207], 40.00th=[ 251], 50.00th=[ 284], 60.00th=[ 292], | 70.00th=[ 330], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 2003, max= 4087, per=51.67%, avg=3526.50, stdev=1017.34, samples=4 iops : min= 1, max= 3, avg= 2.50, stdev= 1.00, samples=4 lat (msec) : 250=25.00%, 500=66.67%, 1000=8.33% cpu : usr=0.05%, sys=5.10%, ctx=81, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178780: Sun Sep 6 07:07:22 2026 read: IOPS=1, BW=1498KiB/s (1534kB/s)(6144KiB/4102msec) clat (msec): min=52, max=626, avg=239.89, stdev=212.99 lat (msec): min=52, max=626, avg=239.89, stdev=212.99 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 338], 80.00th=[ 338], 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= 1976, max= 6095, per=69.16%, avg=3371.33, stdev=2359.00, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1498KiB/s (1534kB/s)(6144KiB/4102msec); 0 zone resets clat (msec): min=87, max=1211, avg=419.38, stdev=406.99 lat (msec): min=88, max=1211, avg=419.49, stdev=407.02 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 355], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1984, max= 2955, per=33.01%, avg=2253.25, stdev=468.53, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.97%, ctx=120, 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=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=178781: Sun Sep 6 07:07:22 2026 read: IOPS=1, BW=1263KiB/s (1293kB/s)(5120KiB/4055msec) clat (msec): min=64, max=468, avg=215.43, stdev=167.08 lat (msec): min=64, max=468, avg=215.43, stdev=167.08 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 84], 40.00th=[ 84], 50.00th=[ 171], 60.00th=[ 171], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 3968, max= 4063, per=82.37%, avg=4015.50, stdev=67.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1768KiB/s (1810kB/s)(7168KiB/4055msec); 0 zone resets clat (msec): min=145, max=1114, avg=393.06, stdev=333.21 lat (msec): min=145, max=1114, avg=393.33, stdev=333.18 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 347], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 388], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1549, max= 4087, per=35.32%, avg=2410.75, stdev=1138.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=121, 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=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=4875KiB/s (4992kB/s), 488KiB/s-1828KiB/s (499kB/s-1872kB/s), io=20.0MiB (20.0MB), run=3922-4201msec WRITE: bw=6825KiB/s (6989kB/s), 1305KiB/s-2438KiB/s (1337kB/s-2496kB/s), io=28.0MiB (29.4MB), run=3922-4201msec 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=178793: Sun Sep 6 07:07:37 2026 read: IOPS=1, BW=4495KiB/s (4602kB/s)(12.0MiB/2734msec) clat (msec): min=225, max=1253, avg=910.91, stdev=593.27 lat (msec): min=225, max=1253, avg=910.91, stdev=593.27 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.33%, ctx=50, 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=178794: Sun Sep 6 07:07:37 2026 read: IOPS=0, BW=1263KiB/s (1293kB/s)(4096KiB/3243msec) clat (nsec): min=767829k, max=767829k, avg=767828559.00, stdev= 0.00 lat (nsec): min=767831k, max=767831k, avg=767830915.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] 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=2526KiB/s (2587kB/s)(8192KiB/3243msec); 0 zone resets clat (msec): min=669, max=1796, avg=1232.91, stdev=797.10 lat (msec): min=675, max=1796, avg=1236.19, stdev=792.79 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 1804], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 8175, max= 8175, per=80.91%, avg=8175.00, 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=0.03%, sys=4.26%, ctx=46, 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=178795: Sun Sep 6 07:07:37 2026 write: IOPS=1, BW=4223KiB/s (4324kB/s)(12.0MiB/2910msec); 0 zone resets clat (msec): min=202, max=1532, avg=969.36, stdev=687.97 lat (msec): min=202, max=1532, avg=969.69, stdev=687.91 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 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= 8159, max= 8159, per=80.75%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.61%, ctx=40, 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=178796: Sun Sep 6 07:07:37 2026 write: IOPS=1, BW=4953KiB/s (5072kB/s)(12.0MiB/2481msec); 0 zone resets clat (msec): min=546, max=973, avg=822.20, stdev=239.00 lat (msec): min=551, max=974, avg=824.24, stdev=236.77 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 8110, max= 8159, per=80.51%, avg=8134.50, stdev=34.65, 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=4.72%, ctx=49, 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=5052KiB/s (5173kB/s), 1263KiB/s-4495KiB/s (1293kB/s-4602kB/s), io=16.0MiB (16.8MB), run=2734-3243msec WRITE: bw=9.87MiB/s (10.3MB/s), 2526KiB/s-4953KiB/s (2587kB/s-5072kB/s), io=32.0MiB (33.6MB), run=2481-3243msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178788: Sun Sep 6 07:07:37 2026 read: IOPS=1, BW=4411KiB/s (4516kB/s)(12.0MiB/2786msec) clat (msec): min=650, max=1082, avg=928.13, stdev=240.70 lat (msec): min=650, max=1082, avg=928.14, stdev=240.70 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1053], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 6023, max= 8192, per=100.00%, avg=7107.50, stdev=1533.71, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=10.13%, ctx=322, 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=178789: Sun Sep 6 07:07:37 2026 read: IOPS=0, BW=1533KiB/s (1570kB/s)(4096KiB/2672msec) clat (nsec): min=768189k, max=768189k, avg=768188699.00, stdev= 0.00 lat (nsec): min=768191k, max=768191k, avg=768190830.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7861, max= 7861, per=100.00%, avg=7861.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3066KiB/s (3139kB/s)(8192KiB/2672msec); 0 zone resets clat (msec): min=801, max=1066, avg=933.68, stdev=187.41 lat (msec): min=801, max=1067, avg=934.57, stdev=188.31 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1070], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8175, max= 8175, per=95.20%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.09%, ctx=122, 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=178790: Sun Sep 6 07:07:37 2026 write: IOPS=0, BW=3220KiB/s (3297kB/s)(12.0MiB/3816msec); 0 zone resets clat (msec): min=289, max=2187, avg=1231.20, stdev=948.75 lat (msec): min=290, max=2187, avg=1231.68, stdev=948.75 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8143, max= 8192, per=95.11%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.62%, ctx=75, 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=178791: Sun Sep 6 07:07:37 2026 write: IOPS=1, BW=4823KiB/s (4938kB/s)(12.0MiB/2548msec); 0 zone resets clat (msec): min=542, max=1239, avg=848.11, stdev=356.41 lat (msec): min=542, max=1240, avg=848.53, stdev=356.51 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8192, max= 8192, per=95.40%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.12%, ctx=53, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=5881KiB/s (6022kB/s), 1533KiB/s-4411KiB/s (1570kB/s-4516kB/s), io=16.0MiB (16.8MB), run=2672-2786msec WRITE: bw=8587KiB/s (8793kB/s), 3066KiB/s-4823KiB/s (3139kB/s-4938kB/s), io=32.0MiB (33.6MB), run=2548-3816msec