== sanity test 398b: DIO and buffer IO race ============== 19:19:58 (1788563998) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.02399 s, 6.3 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=143579: Fri Sep 4 19:22:29 2026 read: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5992KiB/127743msec) clat (usec): min=35, max=775881, avg=42304.26, stdev=37213.94 lat (usec): min=35, max=775884, avg=42309.95, stdev=37209.67 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 77], 20.00th=[ 19268], | 30.00th=[ 24773], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 52167], 80.00th=[ 64226], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[141558], 99.50th=[164627], 99.90th=[354419], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 104, per=25.47%, avg=46.87, stdev=20.40, samples=248 iops : min= 1, max= 26, avg=11.09, stdev= 5.14, samples=248 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6296KiB/127743msec); 0 zone resets clat (usec): min=913, max=279083, avg=40799.68, stdev=41579.49 lat (usec): min=914, max=279085, avg=40803.50, stdev=41579.76 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1385], 20.00th=[ 3752], | 30.00th=[ 8094], 40.00th=[ 16319], 50.00th=[ 30016], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[121111], | 99.00th=[179307], 99.50th=[189793], 99.90th=[265290], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 134, per=25.47%, avg=48.91, stdev=21.85, samples=250 iops : min= 1, max= 33, avg=11.61, stdev= 5.49, samples=250 lat (usec) : 50=0.59%, 100=4.59%, 250=0.13%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.74%, 4=3.61%, 10=6.32%, 20=10.06%, 50=35.32% lat (msec) : 100=25.39%, 250=6.71%, 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=4.92%, ctx=6289, 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=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=143580: Fri Sep 4 19:22:29 2026 read: IOPS=11, BW=45.9KiB/s (46.0kB/s)(5940KiB/129426msec) clat (usec): min=32, max=759757, avg=41917.06, stdev=37569.89 lat (usec): min=32, max=759758, avg=41921.57, stdev=37568.61 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 76], 20.00th=[ 17957], | 30.00th=[ 23987], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[191890], 99.90th=[320865], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 7, max= 118, per=24.87%, avg=45.75, stdev=20.08, samples=253 iops : min= 1, max= 29, avg=10.81, stdev= 5.07, samples=253 write: IOPS=12, BW=49.0KiB/s (50.2kB/s)(6348KiB/129426msec); 0 zone resets clat (usec): min=693, max=302679, avg=42244.58, stdev=44235.85 lat (usec): min=695, max=302680, avg=42249.46, stdev=44235.53 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1434], 20.00th=[ 3884], | 30.00th=[ 9372], 40.00th=[ 20055], 50.00th=[ 32113], 60.00th=[ 42206], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[ 99091], 95.00th=[124257], | 99.00th=[204473], 99.50th=[254804], 99.90th=[295699], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 143, per=25.38%, avg=48.73, stdev=21.94, samples=254 iops : min= 1, max= 35, avg=11.56, stdev= 5.51, samples=254 lat (usec) : 50=0.68%, 100=4.56%, 250=0.33%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=6.54%, 4=3.81%, 10=5.92%, 20=9.31%, 50=36.00% lat (msec) : 100=25.26%, 250=6.84%, 500=0.36%, 1000=0.03% cpu : usr=0.08%, sys=4.99%, ctx=6292, 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=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=143581: Fri Sep 4 19:22:29 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6028KiB/130224msec) clat (usec): min=27, max=266491, avg=40012.87, stdev=30860.88 lat (usec): min=27, max=266492, avg=40014.36, stdev=30860.93 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 18220], | 30.00th=[ 23462], 40.00th=[ 28705], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 58983], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[158335], 99.90th=[256902], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 7, max= 112, per=25.36%, avg=46.66, stdev=22.77, samples=250 iops : min= 1, max= 28, avg=11.04, stdev= 5.75, samples=250 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(6260KiB/130224msec); 0 zone resets clat (usec): min=670, max=844072, avg=44589.04, stdev=49940.37 lat (usec): min=671, max=844076, avg=44593.16, stdev=49939.64 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1172], 10.00th=[ 1336], 20.00th=[ 3884], | 30.00th=[ 8848], 40.00th=[ 19268], 50.00th=[ 32900], 60.00th=[ 44827], | 70.00th=[ 57934], 80.00th=[ 74974], 90.00th=[106431], 95.00th=[130548], | 99.00th=[198181], 99.50th=[235930], 99.90th=[346031], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 118, per=24.68%, avg=47.39, stdev=20.15, samples=255 iops : min= 1, max= 29, avg=11.22, stdev= 5.07, samples=255 lat (usec) : 50=1.20%, 100=4.49%, 250=0.29%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.39% lat (msec) : 2=6.90%, 4=3.19%, 10=5.76%, 20=9.28%, 50=35.87% lat (msec) : 100=24.15%, 250=7.98%, 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=4.92%, ctx=6253, 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=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=143582: Fri Sep 4 19:22:29 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(6052KiB/130477msec) clat (usec): min=33, max=380494, avg=41121.04, stdev=30850.85 lat (usec): min=34, max=380496, avg=41127.48, stdev=30849.06 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 77], 20.00th=[ 18482], | 30.00th=[ 23987], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[127402], 99.50th=[149947], 99.90th=[204473], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 7, max= 118, per=25.21%, avg=46.38, stdev=19.12, samples=254 iops : min= 1, max= 29, avg=10.97, stdev= 4.83, samples=254 write: IOPS=11, BW=47.8KiB/s (48.9kB/s)(6236KiB/130477msec); 0 zone resets clat (usec): min=877, max=828269, avg=43673.66, stdev=49024.30 lat (usec): min=879, max=828272, avg=43675.45, stdev=49024.34 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1156], 10.00th=[ 1287], 20.00th=[ 3556], | 30.00th=[ 8848], 40.00th=[ 19792], 50.00th=[ 33162], 60.00th=[ 44827], | 70.00th=[ 58983], 80.00th=[ 74974], 90.00th=[102237], 95.00th=[127402], | 99.00th=[191890], 99.50th=[238027], 99.90th=[471860], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 111, per=24.74%, avg=47.50, stdev=21.51, samples=255 iops : min= 1, max= 27, avg=11.25, stdev= 5.44, samples=255 lat (usec) : 50=0.91%, 100=4.52%, 250=0.29%, 500=0.13%, 1000=0.36% lat (msec) : 2=7.29%, 4=3.61%, 10=5.34%, 20=9.21%, 50=34.21% lat (msec) : 100=26.76%, 250=7.13%, 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=4.98%, ctx=6275, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=184KiB/s (188kB/s), 45.9KiB/s-46.9KiB/s (46.0kB/s-48.0kB/s), io=23.4MiB (24.6MB), run=127743-130477msec WRITE: bw=193KiB/s (197kB/s), 47.8KiB/s-49.3KiB/s (48.9kB/s-50.5kB/s), io=24.6MiB (25.7MB), run=127743-130477msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143574: Fri Sep 4 19:24:48 2026 read: IOPS=5, BW=22.3KiB/s (22.8kB/s)(5992KiB/269128msec) clat (msec): min=4, max=864, avg=35.55, stdev=44.09 lat (msec): min=4, max=864, avg=35.55, stdev=44.09 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 104], | 99.00th=[ 182], 99.50th=[ 234], 99.90th=[ 584], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 103, per=28.25%, avg=25.14, stdev=17.46, samples=461 iops : min= 1, max= 25, avg= 5.67, stdev= 4.40, samples=461 write: IOPS=5, BW=23.4KiB/s (23.0kB/s)(6296KiB/269128msec); 0 zone resets clat (msec): min=35, max=488, avg=136.86, stdev=66.10 lat (msec): min=35, max=488, avg=136.86, stdev=66.10 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 186], 90.00th=[ 228], 95.00th=[ 266], | 99.00th=[ 363], 99.50th=[ 393], 99.90th=[ 477], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 56, per=24.83%, avg=23.09, stdev=10.79, samples=525 iops : min= 1, max= 14, avg= 5.15, stdev= 2.75, samples=525 lat (msec) : 10=4.79%, 20=16.54%, 50=18.72%, 100=23.11%, 250=33.46% lat (msec) : 500=3.32%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5060, 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=143575: Fri Sep 4 19:24:48 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(5940KiB/269249msec) clat (msec): min=5, max=843, avg=34.52, stdev=41.32 lat (msec): min=5, max=843, avg=34.53, stdev=41.32 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 80], 95.00th=[ 106], | 99.00th=[ 167], 99.50th=[ 241], 99.90th=[ 376], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 88, per=28.01%, avg=24.93, stdev=16.75, samples=460 iops : min= 1, max= 22, avg= 5.62, stdev= 4.21, samples=460 write: IOPS=5, BW=23.6KiB/s (24.1kB/s)(6348KiB/269249msec); 0 zone resets clat (msec): min=33, max=557, avg=137.07, stdev=67.10 lat (msec): min=33, max=557, avg=137.07, stdev=67.10 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 121], 60.00th=[ 134], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 230], 95.00th=[ 271], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 460], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 63, per=25.01%, avg=23.26, stdev=10.79, samples=525 iops : min= 1, max= 15, avg= 5.19, stdev= 2.76, samples=525 lat (msec) : 10=4.33%, 20=18.33%, 50=17.74%, 100=22.07%, 250=33.53% lat (msec) : 500=3.94%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5014, 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=143576: Fri Sep 4 19:24:48 2026 read: IOPS=5, BW=22.5KiB/s (22.0kB/s)(6028KiB/268470msec) clat (msec): min=5, max=386, avg=35.88, stdev=36.32 lat (msec): min=5, max=386, avg=35.88, stdev=36.32 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 52], 90.00th=[ 82], 95.00th=[ 110], | 99.00th=[ 167], 99.50th=[ 218], 99.90th=[ 334], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 103, per=27.22%, avg=24.23, stdev=17.07, samples=481 iops : min= 1, max= 25, avg= 5.44, stdev= 4.30, samples=481 write: IOPS=5, BW=23.3KiB/s (23.9kB/s)(6260KiB/268470msec); 0 zone resets clat (msec): min=36, max=930, avg=136.73, stdev=66.58 lat (msec): min=36, max=930, avg=136.73, stdev=66.58 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 155], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 262], | 99.00th=[ 347], 99.50th=[ 372], 99.90th=[ 518], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 56, per=24.72%, avg=22.99, stdev=10.85, samples=525 iops : min= 1, max= 14, avg= 5.13, stdev= 2.78, samples=525 lat (msec) : 10=4.46%, 20=16.83%, 50=18.20%, 100=23.57%, 250=33.95% lat (msec) : 500=2.93%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5110, 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=143577: Fri Sep 4 19:24:48 2026 read: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6052KiB/265244msec) clat (msec): min=4, max=588, avg=34.08, stdev=39.11 lat (msec): min=4, max=588, avg=34.08, stdev=39.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 44], 90.00th=[ 77], 95.00th=[ 106], | 99.00th=[ 174], 99.50th=[ 230], 99.90th=[ 401], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 128, per=29.39%, avg=26.16, stdev=18.09, samples=448 iops : min= 1, max= 32, avg= 5.93, stdev= 4.58, samples=448 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6236KiB/265244msec); 0 zone resets clat (msec): min=27, max=913, avg=136.75, stdev=70.55 lat (msec): min=27, max=913, avg=136.75, stdev=70.55 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 118], 60.00th=[ 133], | 70.00th=[ 155], 80.00th=[ 184], 90.00th=[ 228], 95.00th=[ 275], | 99.00th=[ 372], 99.50th=[ 414], 99.90th=[ 510], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 63, per=24.99%, avg=23.24, stdev=11.07, samples=517 iops : min= 1, max= 15, avg= 5.19, stdev= 2.82, samples=517 lat (msec) : 10=4.65%, 20=18.03%, 50=18.82%, 100=22.72%, 250=32.16% lat (msec) : 500=3.52%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.06%, ctx=5065, 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=89.2KiB/s (91.3kB/s), 22.1KiB/s-22.8KiB/s (22.6kB/s-23.4kB/s), io=23.4MiB (24.6MB), run=265244-269249msec WRITE: bw=93.4KiB/s (95.6kB/s), 23.3KiB/s-23.6KiB/s (23.9kB/s-24.1kB/s), io=24.6MiB (25.7MB), run=265244-269249msec 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=143634: Fri Sep 4 19:25:27 2026 read: IOPS=13, BW=211KiB/s (216kB/s)(5920KiB/28102msec) clat (usec): min=34, max=332988, avg=40965.98, stdev=38591.84 lat (usec): min=35, max=332989, avg=40967.58, stdev=38591.87 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 116], | 30.00th=[ 23987], 40.00th=[ 29230], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 50594], 80.00th=[ 61604], 90.00th=[ 83362], 95.00th=[ 95945], | 99.00th=[168821], 99.50th=[329253], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 62, max= 474, per=25.32%, avg=209.89, stdev=83.91, samples=55 iops : min= 3, max= 29, avg=12.38, stdev= 5.23, samples=55 write: IOPS=14, BW=227KiB/s (232kB/s)(6368KiB/28102msec); 0 zone resets clat (usec): min=1317, max=172431, avg=32060.07, stdev=33125.09 lat (usec): min=1319, max=172434, avg=32082.27, stdev=33124.36 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1860], 10.00th=[ 2671], 20.00th=[ 5014], | 30.00th=[ 8160], 40.00th=[ 13435], 50.00th=[ 19530], 60.00th=[ 27132], | 70.00th=[ 39060], 80.00th=[ 58459], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[131597], 99.50th=[143655], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 62, max= 505, per=26.02%, avg=226.93, stdev=97.36, samples=55 iops : min= 3, max= 31, avg=13.45, stdev= 6.15, samples=55 lat (usec) : 50=1.43%, 100=7.68%, 250=0.78% lat (msec) : 2=2.99%, 4=5.60%, 10=9.11%, 20=11.20%, 50=33.59% lat (msec) : 100=23.05%, 250=4.30%, 500=0.26% cpu : usr=0.06%, sys=6.00%, ctx=1394, 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=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=143635: Fri Sep 4 19:25:27 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(5744KiB/28869msec) clat (usec): min=39, max=215775, avg=41056.57, stdev=30590.89 lat (usec): min=39, max=215776, avg=41061.02, stdev=30591.36 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 16712], | 30.00th=[ 25560], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 74974], 95.00th=[ 96994], | 99.00th=[121111], 99.50th=[170918], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 447, per=23.71%, avg=196.52, stdev=72.98, samples=56 iops : min= 1, max= 27, avg=11.54, stdev= 4.56, samples=56 write: IOPS=14, BW=227KiB/s (232kB/s)(6544KiB/28869msec); 0 zone resets clat (usec): min=1446, max=246763, avg=34111.03, stdev=38674.60 lat (usec): min=1449, max=246764, avg=34120.20, stdev=38669.90 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1713], 10.00th=[ 2343], 20.00th=[ 4948], | 30.00th=[ 7177], 40.00th=[ 11469], 50.00th=[ 18744], 60.00th=[ 30802], | 70.00th=[ 42206], 80.00th=[ 60031], 90.00th=[ 83362], 95.00th=[108528], | 99.00th=[170918], 99.50th=[202376], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 63, max= 494, per=25.46%, avg=222.02, stdev=91.56, samples=56 iops : min= 3, max= 30, avg=13.12, stdev= 5.73, samples=56 lat (usec) : 50=0.39%, 100=6.38%, 250=0.39%, 500=0.13% lat (msec) : 2=4.95%, 4=3.91%, 10=11.07%, 20=10.29%, 50=32.55% lat (msec) : 100=24.48%, 250=5.47% cpu : usr=0.10%, sys=5.49%, ctx=1434, 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=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=143636: Fri Sep 4 19:25:27 2026 read: IOPS=13, BW=220KiB/s (225kB/s)(6256KiB/28493msec) clat (usec): min=33, max=345220, avg=43148.92, stdev=36186.31 lat (usec): min=33, max=345221, avg=43150.73, stdev=36186.30 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 72], 20.00th=[ 19006], | 30.00th=[ 26346], 40.00th=[ 32375], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 53216], 80.00th=[ 65799], 90.00th=[ 82314], 95.00th=[ 98042], | 99.00th=[168821], 99.50th=[291505], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 62, max= 440, per=26.70%, avg=221.38, stdev=82.72, samples=55 iops : min= 3, max= 27, avg=13.13, stdev= 5.20, samples=55 write: IOPS=13, BW=212KiB/s (217kB/s)(6032KiB/28493msec); 0 zone resets clat (usec): min=1007, max=232228, avg=30483.51, stdev=32072.49 lat (usec): min=1010, max=232231, avg=30503.70, stdev=32060.14 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1795], 10.00th=[ 2933], 20.00th=[ 4817], | 30.00th=[ 7177], 40.00th=[ 10028], 50.00th=[ 16450], 60.00th=[ 30016], | 70.00th=[ 41681], 80.00th=[ 55837], 90.00th=[ 73925], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[154141], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 93, max= 382, per=24.41%, avg=212.85, stdev=83.44, samples=54 iops : min= 5, max= 23, avg=12.56, stdev= 5.28, samples=54 lat (usec) : 50=0.91%, 100=6.51%, 250=0.91%, 500=0.26%, 1000=0.13% lat (msec) : 2=3.65%, 4=4.69%, 10=11.72%, 20=7.81%, 50=34.24% lat (msec) : 100=25.78%, 250=3.12%, 500=0.26% cpu : usr=0.08%, sys=5.79%, ctx=1444, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143637: Fri Sep 4 19:25:27 2026 read: IOPS=13, BW=211KiB/s (217kB/s)(6032KiB/28522msec) clat (usec): min=43, max=479840, avg=42016.98, stdev=37577.20 lat (usec): min=44, max=479841, avg=42018.73, stdev=37576.98 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 75], 20.00th=[ 15401], | 30.00th=[ 26084], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 63177], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[139461], 99.50th=[149947], 99.90th=[480248], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 31, max= 382, per=25.84%, avg=214.19, stdev=69.61, samples=54 iops : min= 1, max= 23, avg=12.65, stdev= 4.40, samples=54 write: IOPS=13, BW=219KiB/s (225kB/s)(6256KiB/28522msec); 0 zone resets clat (usec): min=1478, max=322125, avg=31807.97, stdev=36265.29 lat (usec): min=1480, max=322127, avg=31812.58, stdev=36266.82 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1795], 10.00th=[ 2442], 20.00th=[ 5276], | 30.00th=[ 8455], 40.00th=[ 11731], 50.00th=[ 17695], 60.00th=[ 27132], | 70.00th=[ 38536], 80.00th=[ 51643], 90.00th=[ 78119], 95.00th=[103285], | 99.00th=[154141], 99.50th=[189793], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 63, max= 434, per=25.12%, avg=219.07, stdev=84.56, samples=55 iops : min= 3, max= 27, avg=12.98, stdev= 5.39, samples=55 lat (usec) : 50=0.39%, 100=6.51%, 250=1.56%, 500=0.52% lat (msec) : 2=4.17%, 4=4.04%, 10=9.90%, 20=11.46%, 50=32.42% lat (msec) : 100=24.48%, 250=4.30%, 500=0.26% cpu : usr=0.09%, sys=5.87%, ctx=1511, 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=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=830KiB/s (850kB/s), 199KiB/s-220KiB/s (204kB/s-225kB/s), io=23.4MiB (24.5MB), run=28102-28869msec WRITE: bw=873KiB/s (894kB/s), 212KiB/s-227KiB/s (217kB/s-232kB/s), io=24.6MiB (25.8MB), run=28102-28869msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143639: Fri Sep 4 19:26:03 2026 read: IOPS=5, BW=92.4KiB/s (94.6kB/s)(5920KiB/64052msec) clat (msec): min=5, max=395, avg=39.91, stdev=44.10 lat (msec): min=5, max=395, avg=39.91, stdev=44.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 51], 90.00th=[ 80], 95.00th=[ 122], | 99.00th=[ 247], 99.50th=[ 338], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 30, max= 415, per=27.10%, avg=101.10, stdev=65.37, samples=114 iops : min= 1, max= 25, avg= 5.55, stdev= 4.15, samples=114 write: IOPS=6, BW=99.4KiB/s (102kB/s)(6368KiB/64052msec); 0 zone resets clat (msec): min=28, max=467, avg=123.62, stdev=68.47 lat (msec): min=28, max=467, avg=123.62, stdev=68.47 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 91], 50.00th=[ 105], 60.00th=[ 120], | 70.00th=[ 134], 80.00th=[ 161], 90.00th=[ 218], 95.00th=[ 266], | 99.00th=[ 380], 99.50th=[ 447], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 30, max= 224, per=25.59%, avg=100.31, stdev=50.60, samples=124 iops : min= 1, max= 14, avg= 5.51, stdev= 3.25, samples=124 lat (msec) : 10=1.69%, 20=15.23%, 50=22.79%, 100=29.17%, 250=27.47% lat (msec) : 500=3.65% cpu : usr=0.04%, sys=1.37%, ctx=1432, 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=143640: Fri Sep 4 19:26:03 2026 read: IOPS=5, BW=89.5KiB/s (91.7kB/s)(5744KiB/64173msec) clat (msec): min=7, max=300, avg=36.93, stdev=35.74 lat (msec): min=7, max=300, avg=36.93, stdev=35.74 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 82], 95.00th=[ 114], | 99.00th=[ 165], 99.50th=[ 207], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 416, per=28.03%, avg=104.56, stdev=67.48, samples=107 iops : min= 1, max= 26, avg= 5.79, stdev= 4.34, samples=107 write: IOPS=6, BW=102KiB/s (104kB/s)(6544KiB/64173msec); 0 zone resets clat (msec): min=36, max=479, avg=124.23, stdev=65.26 lat (msec): min=36, max=479, avg=124.25, stdev=65.35 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 84], 40.00th=[ 94], 50.00th=[ 105], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 171], 90.00th=[ 215], 95.00th=[ 251], | 99.00th=[ 338], 99.50th=[ 363], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 213, per=25.97%, avg=101.81, stdev=48.03, samples=125 iops : min= 1, max= 13, avg= 5.60, stdev= 3.08, samples=125 lat (msec) : 10=1.69%, 20=16.67%, 50=21.09%, 100=28.78%, 250=28.91% lat (msec) : 500=2.86% cpu : usr=0.05%, sys=1.37%, ctx=1316, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143641: Fri Sep 4 19:26:03 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61866msec) clat (msec): min=6, max=312, avg=36.35, stdev=38.69 lat (msec): min=6, max=312, avg=36.35, stdev=38.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 66], 95.00th=[ 112], | 99.00th=[ 239], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 318, per=29.05%, avg=108.34, stdev=78.69, samples=114 iops : min= 1, max= 19, avg= 6.03, stdev= 4.99, samples=114 write: IOPS=6, BW=97.5KiB/s (99.8kB/s)(6032KiB/61866msec); 0 zone resets clat (msec): min=38, max=445, avg=126.20, stdev=66.49 lat (msec): min=38, max=445, avg=126.21, stdev=66.50 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 75], | 30.00th=[ 84], 40.00th=[ 94], 50.00th=[ 106], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 171], 90.00th=[ 209], 95.00th=[ 259], | 99.00th=[ 372], 99.50th=[ 376], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 30, max= 192, per=24.75%, avg=97.03, stdev=46.80, samples=122 iops : min= 1, max= 12, avg= 5.30, stdev= 3.04, samples=122 lat (msec) : 10=2.86%, 20=16.41%, 50=23.96%, 100=26.43%, 250=27.47% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.27%, ctx=1410, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143642: Fri Sep 4 19:26:03 2026 read: IOPS=6, BW=96.1KiB/s (98.4kB/s)(6032KiB/62752msec) clat (msec): min=7, max=221, avg=36.47, stdev=34.76 lat (msec): min=7, max=221, avg=36.47, stdev=34.76 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 74], 95.00th=[ 112], | 99.00th=[ 203], 99.50th=[ 218], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 30, max= 288, per=29.05%, avg=108.35, stdev=66.36, samples=109 iops : min= 1, max= 18, avg= 6.03, stdev= 4.30, samples=109 write: IOPS=6, BW=99.7KiB/s (102kB/s)(6256KiB/62752msec); 0 zone resets clat (msec): min=28, max=530, avg=125.25, stdev=69.83 lat (msec): min=28, max=530, avg=125.25, stdev=69.83 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 75], | 30.00th=[ 85], 40.00th=[ 93], 50.00th=[ 103], 60.00th=[ 118], | 70.00th=[ 140], 80.00th=[ 167], 90.00th=[ 213], 95.00th=[ 271], | 99.00th=[ 405], 99.50th=[ 418], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 31, max= 217, per=26.25%, avg=102.91, stdev=48.42, samples=120 iops : min= 1, max= 13, avg= 5.68, stdev= 3.08, samples=120 lat (msec) : 10=1.30%, 20=15.76%, 50=25.26%, 100=28.39%, 250=26.30% lat (msec) : 500=2.86%, 750=0.13% cpu : usr=0.05%, sys=1.31%, ctx=1351, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=373KiB/s (382kB/s), 89.5KiB/s-101KiB/s (91.7kB/s-104kB/s), io=23.4MiB (24.5MB), run=61866-64173msec WRITE: bw=393KiB/s (402kB/s), 97.5KiB/s-102KiB/s (99.8kB/s-104kB/s), io=24.6MiB (25.8MB), run=61866-64173msec 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=143660: Fri Sep 4 19:26:18 2026 read: IOPS=1, BW=1687KiB/s (1728kB/s)(7168KiB/4248msec) clat (usec): min=686, max=431453, avg=234682.66, stdev=139711.36 lat (usec): min=687, max=431454, avg=234684.04, stdev=139711.26 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[168821], | 30.00th=[206570], 40.00th=[206570], 50.00th=[223347], 60.00th=[240124], | 70.00th=[240124], 80.00th=[371196], 90.00th=[429917], 95.00th=[429917], | 99.00th=[429917], 99.50th=[429917], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 1973, max= 3079, per=55.86%, avg=2226.60, stdev=477.19, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1205KiB/s (1234kB/s)(5120KiB/4248msec); 0 zone resets clat (msec): min=202, max=995, avg=488.51, stdev=305.30 lat (msec): min=202, max=995, avg=488.62, stdev=305.31 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1992, max= 2043, per=36.19%, avg=2019.50, stdev=27.33, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=9.49%, ctx=252, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143661: Fri Sep 4 19:26:18 2026 read: IOPS=0, BW=399KiB/s (408kB/s)(2048KiB/5137msec) clat (usec): min=564, max=177700, avg=89132.56, stdev=125254.28 lat (usec): min=566, max=177703, avg=89134.68, stdev=125255.01 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 562], 40.00th=[ 562], 50.00th=[ 562], 60.00th=[177210], | 70.00th=[177210], 80.00th=[177210], 90.00th=[177210], 95.00th=[177210], | 99.00th=[177210], 99.50th=[177210], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 1512, max= 2000, per=44.05%, avg=1756.00, stdev=345.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1993KiB/s (2041kB/s)(10.0MiB/5137msec); 0 zone resets clat (msec): min=178, max=909, avg=479.82, stdev=244.20 lat (msec): min=178, max=910, avg=480.06, stdev=244.29 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 397], 60.00th=[ 418], | 70.00th=[ 498], 80.00th=[ 743], 90.00th=[ 760], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1805, max= 4000, per=47.19%, avg=2633.50, stdev=1041.07, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=9.81%, ctx=175, 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=143662: Fri Sep 4 19:26:18 2026 read: IOPS=1, BW=1482KiB/s (1517kB/s)(6144KiB/4146msec) clat (usec): min=384, max=334880, avg=121044.44, stdev=144746.21 lat (usec): min=385, max=334882, avg=121045.69, stdev=144746.22 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], 20.00th=[ 1926], | 30.00th=[ 1926], 40.00th=[ 25297], 50.00th=[ 25297], 60.00th=[ 99091], | 70.00th=[265290], 80.00th=[265290], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 1992, max= 4047, per=83.95%, avg=3346.33, stdev=1173.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1482KiB/s (1517kB/s)(6144KiB/4146msec); 0 zone resets clat (msec): min=83, max=913, avg=497.62, stdev=280.25 lat (msec): min=84, max=913, avg=497.90, stdev=280.38 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 567], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1499, max= 2043, per=34.25%, avg=1911.40, stdev=231.41, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 50=8.33%, 100=16.67%, 500=33.33%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=9.60%, ctx=157, 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=143663: Fri Sep 4 19:26:18 2026 read: IOPS=1, BW=1626KiB/s (1665kB/s)(5120KiB/3149msec) clat (usec): min=1879, max=368053, avg=130653.67, stdev=156818.98 lat (usec): min=1881, max=368054, avg=130654.94, stdev=156818.87 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 1876], 10.00th=[ 1876], 20.00th=[ 1876], | 30.00th=[ 3130], 40.00th=[ 3130], 50.00th=[ 72877], 60.00th=[ 72877], | 70.00th=[206570], 80.00th=[206570], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 2023, max= 6000, per=100.00%, avg=4011.50, stdev=2812.16, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2276KiB/s (2331kB/s)(7168KiB/3149msec); 0 zone resets clat (msec): min=196, max=598, avg=344.15, stdev=154.48 lat (msec): min=196, max=605, avg=345.19, stdev=156.30 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 243], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 249], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 506], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1537, max= 3946, per=42.67%, avg=2381.50, stdev=1067.86, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 100=8.33%, 250=41.67%, 500=16.67% lat (msec) : 750=16.67% cpu : usr=0.03%, sys=14.71%, ctx=176, 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=3987KiB/s (4082kB/s), 399KiB/s-1687KiB/s (408kB/s-1728kB/s), io=20.0MiB (20.0MB), run=3149-5137msec WRITE: bw=5581KiB/s (5715kB/s), 1205KiB/s-2276KiB/s (1234kB/s-2331kB/s), io=28.0MiB (29.4MB), run=3149-5137msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143665: Fri Sep 4 19:26:19 2026 read: IOPS=1, BW=1557KiB/s (1594kB/s)(7168KiB/4604msec) clat (msec): min=93, max=627, avg=294.84, stdev=217.75 lat (msec): min=94, max=627, avg=294.85, stdev=217.74 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 125], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 220], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 575], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1969, max= 3785, per=66.27%, avg=2435.25, stdev=899.94, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1112KiB/s (1139kB/s)(5120KiB/4604msec); 0 zone resets clat (msec): min=285, max=565, avg=436.45, stdev=124.73 lat (msec): min=285, max=566, avg=436.56, stdev=124.73 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 535], 80.00th=[ 535], 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= 1906, max= 4031, per=51.70%, avg=2660.00, stdev=1189.30, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=4.45%, ctx=98, 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=143666: Fri Sep 4 19:26:19 2026 read: IOPS=0, BW=368KiB/s (376kB/s)(2048KiB/5572msec) clat (msec): min=152, max=272, avg=212.61, stdev=85.33 lat (msec): min=152, max=272, avg=212.61, stdev=85.33 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 275], 95.00th=[ 275], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 1374, max= 1984, per=45.69%, avg=1679.00, stdev=431.34, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1838KiB/s (1882kB/s)(10.0MiB/5572msec); 0 zone resets clat (msec): min=126, max=1372, avg=481.29, stdev=394.98 lat (msec): min=126, max=1372, avg=481.39, stdev=395.01 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 275], 50.00th=[ 313], 60.00th=[ 334], | 70.00th=[ 342], 80.00th=[ 776], 90.00th=[ 852], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 1906, max= 6107, per=58.33%, avg=3001.33, stdev=1731.35, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=33.33%, 500=41.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.02%, sys=3.41%, ctx=96, 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=143667: Fri Sep 4 19:26:19 2026 read: IOPS=1, BW=1318KiB/s (1350kB/s)(6144KiB/4662msec) clat (msec): min=142, max=257, avg=184.80, stdev=41.63 lat (msec): min=142, max=257, avg=184.80, stdev=41.64 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 180], | 70.00th=[ 207], 80.00th=[ 207], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 1906, max= 4063, per=67.63%, avg=2485.25, stdev=1052.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1318KiB/s (1350kB/s)(6144KiB/4662msec); 0 zone resets clat (msec): min=367, max=833, avg=534.66, stdev=167.64 lat (msec): min=367, max=833, avg=535.21, stdev=167.59 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 502], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1892, max= 2043, per=38.46%, avg=1979.00, stdev=73.54, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=3.73%, ctx=128, 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=143668: Fri Sep 4 19:26:19 2026 read: IOPS=0, BW=1022KiB/s (1046kB/s)(5120KiB/5012msec) clat (msec): min=67, max=297, avg=168.69, stdev=91.81 lat (msec): min=67, max=297, avg=168.69, stdev=91.81 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 68], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 4031, max= 4047, per=100.00%, avg=4039.00, stdev=11.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1430KiB/s (1464kB/s)(7168KiB/5012msec); 0 zone resets clat (msec): min=177, max=1419, avg=579.26, stdev=426.29 lat (msec): min=177, max=1419, avg=579.45, stdev=426.21 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 279], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 477], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 810], 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= 1363, max= 3968, per=44.42%, avg=2285.60, stdev=984.16, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=3.29%, ctx=71, 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=3676KiB/s (3764kB/s), 368KiB/s-1557KiB/s (376kB/s-1594kB/s), io=20.0MiB (20.0MB), run=4604-5572msec WRITE: bw=5146KiB/s (5269kB/s), 1112KiB/s-1838KiB/s (1139kB/s-1882kB/s), io=28.0MiB (29.4MB), run=4604-5572msec 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=143676: Fri Sep 4 19:26:35 2026 read: IOPS=1, BW=6741KiB/s (6902kB/s)(12.0MiB/1823msec) clat (msec): min=191, max=893, avg=591.59, stdev=361.25 lat (msec): min=191, max=893, avg=591.59, stdev=361.25 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min=16286, max=16286, per=100.00%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=6.20%, 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=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=143678: Fri Sep 4 19:26:35 2026 read: IOPS=0, BW=1009KiB/s (1033kB/s)(4096KiB/4060msec) clat (nsec): min=1683.3M, max=1683.3M, avg=1683321431.00, stdev= 0.00 lat (nsec): min=1683.3M, max=1683.3M, avg=1683324411.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1687], 5.00th=[ 1687], 10.00th=[ 1687], 20.00th=[ 1687], | 30.00th=[ 1687], 40.00th=[ 1687], 50.00th=[ 1687], 60.00th=[ 1687], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2018KiB/s (2066kB/s)(8192KiB/4060msec); 0 zone resets clat (msec): min=995, max=1188, avg=1092.33, stdev=136.59 lat (msec): min=996, max=1189, avg=1092.75, stdev=136.70 clat percentiles (msec): | 1.00th=[ 995], 5.00th=[ 995], 10.00th=[ 995], 20.00th=[ 995], | 30.00th=[ 995], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.77%, ctx=58, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143680: Fri Sep 4 19:26:35 2026 write: IOPS=0, BW=3643KiB/s (3730kB/s)(12.0MiB/3373msec); 0 zone resets clat (msec): min=597, max=1442, avg=1094.49, stdev=441.83 lat (msec): min=598, max=1444, avg=1095.49, stdev=442.28 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.23%, ctx=49, 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=143683: Fri Sep 4 19:26:35 2026 write: IOPS=1, BW=4628KiB/s (4739kB/s)(12.0MiB/2655msec); 0 zone resets clat (msec): min=514, max=1315, avg=853.35, stdev=414.43 lat (msec): min=519, max=1315, avg=855.32, stdev=412.61 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7937, max= 8159, per=99.73%, avg=8048.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.28%, ctx=43, 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=4035KiB/s (4132kB/s), 1009KiB/s-6741KiB/s (1033kB/s-6902kB/s), io=16.0MiB (16.8MB), run=1823-4060msec WRITE: bw=8071KiB/s (8265kB/s), 2018KiB/s-4628KiB/s (2066kB/s-4739kB/s), io=32.0MiB (33.6MB), run=2655-4060msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143677: Fri Sep 4 19:26:35 2026 read: IOPS=1, BW=4157KiB/s (4257kB/s)(12.0MiB/2956msec) clat (msec): min=769, max=1077, avg=939.58, stdev=156.29 lat (msec): min=769, max=1077, avg=939.59, stdev=156.29 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 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= 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) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=10.86%, ctx=624, 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=143679: Fri Sep 4 19:26:35 2026 read: IOPS=0, BW=1197KiB/s (1226kB/s)(4096KiB/3422msec) clat (nsec): min=1023.9M, max=1023.9M, avg=1023859412.00, stdev= 0.00 lat (nsec): min=1023.9M, max=1023.9M, avg=1023862224.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1028], 5.00th=[ 1028], 10.00th=[ 1028], 20.00th=[ 1028], | 30.00th=[ 1028], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2394KiB/s (2451kB/s)(8192KiB/3422msec); 0 zone resets clat (msec): min=1103, max=1222, avg=1162.93, stdev=83.82 lat (msec): min=1104, max=1222, avg=1163.30, stdev=83.80 clat percentiles (msec): | 1.00th=[ 1099], 5.00th=[ 1099], 10.00th=[ 1099], 20.00th=[ 1099], | 30.00th=[ 1099], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 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= 8000, max= 8000, per=96.47%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.03%, sys=5.99%, ctx=341, 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=143681: Fri Sep 4 19:26:35 2026 write: IOPS=0, BW=3110KiB/s (3185kB/s)(12.0MiB/3951msec); 0 zone resets clat (msec): min=375, max=2010, avg=1273.83, stdev=829.05 lat (msec): min=376, max=2010, avg=1274.21, stdev=829.09 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8000, max= 8000, per=96.47%, avg=8000.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.24%, ctx=45, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=143682: Fri Sep 4 19:26:35 2026 write: IOPS=0, BW=3533KiB/s (3618kB/s)(12.0MiB/3478msec); 0 zone resets clat (msec): min=435, max=1851, avg=1136.57, stdev=708.26 lat (msec): min=435, max=1851, avg=1137.95, stdev=708.23 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8175, max= 8192, per=98.68%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.60%, ctx=85, 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=4788KiB/s (4903kB/s), 1197KiB/s-4157KiB/s (1226kB/s-4257kB/s), io=16.0MiB (16.8MB), run=2956-3422msec WRITE: bw=8294KiB/s (8493kB/s), 2394KiB/s-3533KiB/s (2451kB/s-3618kB/s), io=32.0MiB (33.6MB), run=3422-3951msec