== sanity test 398b: DIO and buffer IO race ============== 10:26:44 (1786804004) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.37377 s, 7.9 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=145167: Sat Aug 15 10:29:12 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5992KiB/129934msec) clat (usec): min=35, max=342384, avg=42648.08, stdev=31629.86 lat (usec): min=35, max=342394, avg=42657.93, stdev=31639.25 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 73], 10.00th=[ 12125], 20.00th=[ 20841], | 30.00th=[ 26608], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 52691], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[147850], 99.50th=[204473], 99.90th=[304088], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 111, per=24.77%, avg=45.57, stdev=19.66, samples=257 iops : min= 1, max= 27, avg=10.73, stdev= 4.93, samples=257 write: IOPS=12, BW=48.5KiB/s (49.6kB/s)(6296KiB/129934msec); 0 zone resets clat (usec): min=1207, max=631468, avg=41725.31, stdev=46272.36 lat (usec): min=1207, max=631470, avg=41727.98, stdev=46271.79 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1663], 10.00th=[ 2507], 20.00th=[ 5014], | 30.00th=[ 9896], 40.00th=[ 21103], 50.00th=[ 31065], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 68682], 90.00th=[ 96994], 95.00th=[120062], | 99.00th=[179307], 99.50th=[235930], 99.90th=[484443], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 7, max= 119, per=24.92%, avg=48.09, stdev=20.36, samples=256 iops : min= 1, max= 29, avg=11.36, stdev= 5.13, samples=256 lat (usec) : 50=0.33%, 100=3.06%, 250=0.49%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=3.87%, 4=4.49%, 10=7.29%, 20=8.95%, 50=39.10% lat (msec) : 100=25.59%, 250=6.22%, 500=0.33%, 750=0.03% cpu : usr=0.07%, sys=5.48%, ctx=7032, 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=145168: Sat Aug 15 10:29:12 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5940KiB/128354msec) clat (usec): min=27, max=387171, avg=43149.10, stdev=31496.00 lat (usec): min=27, max=387173, avg=43152.17, stdev=31496.65 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 73], 10.00th=[ 13304], 20.00th=[ 21103], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 62653], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[181404], 99.90th=[358613], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 7, max= 102, per=24.90%, avg=45.81, stdev=19.14, samples=253 iops : min= 1, max= 25, avg=10.79, stdev= 4.83, samples=253 write: IOPS=12, BW=49.5KiB/s (50.6kB/s)(6348KiB/128354msec); 0 zone resets clat (usec): min=1197, max=648554, avg=40272.28, stdev=44112.28 lat (usec): min=1198, max=648555, avg=40276.81, stdev=44113.06 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1844], 10.00th=[ 2933], 20.00th=[ 5211], | 30.00th=[ 9765], 40.00th=[ 18482], 50.00th=[ 29492], 60.00th=[ 40633], | 70.00th=[ 52691], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[183501], 99.50th=[227541], 99.90th=[446694], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 7, max= 119, per=25.36%, avg=48.95, stdev=20.29, samples=253 iops : min= 1, max= 29, avg=11.59, stdev= 5.12, samples=253 lat (usec) : 50=0.33%, 100=2.86%, 250=0.39%, 500=0.03%, 1000=0.03% lat (msec) : 2=3.12%, 4=5.08%, 10=7.78%, 20=10.29%, 50=38.09% lat (msec) : 100=26.33%, 250=5.40%, 500=0.23%, 750=0.03% cpu : usr=0.09%, sys=5.45%, ctx=6964, 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=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=145169: Sat Aug 15 10:29:12 2026 read: IOPS=11, BW=46.8KiB/s (47.0kB/s)(6028KiB/128666msec) clat (usec): min=34, max=392027, avg=43151.71, stdev=31514.90 lat (usec): min=34, max=392029, avg=43153.51, stdev=31514.86 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 75], 10.00th=[ 13829], 20.00th=[ 21627], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 62653], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[137364], 99.50th=[177210], 99.90th=[320865], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 111, per=25.45%, avg=46.83, stdev=19.50, samples=251 iops : min= 1, max= 27, avg=11.06, stdev= 4.92, samples=251 write: IOPS=12, BW=48.7KiB/s (49.8kB/s)(6260KiB/128666msec); 0 zone resets clat (usec): min=1198, max=795977, avg=40393.92, stdev=47044.11 lat (usec): min=1199, max=795979, avg=40413.58, stdev=47078.61 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1860], 10.00th=[ 2933], 20.00th=[ 5800], | 30.00th=[ 10421], 40.00th=[ 20579], 50.00th=[ 29754], 60.00th=[ 39060], | 70.00th=[ 50594], 80.00th=[ 66323], 90.00th=[ 88605], 95.00th=[114820], | 99.00th=[170918], 99.50th=[295699], 99.90th=[534774], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 103, per=25.23%, avg=48.69, stdev=20.13, samples=251 iops : min= 1, max= 25, avg=11.51, stdev= 5.05, samples=251 lat (usec) : 50=0.36%, 100=2.83%, 250=0.52%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=2.93%, 4=4.33%, 10=7.94%, 20=9.47%, 50=39.97% lat (msec) : 100=25.78%, 250=5.27%, 500=0.33%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.53%, ctx=6979, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145170: Sat Aug 15 10:29:12 2026 read: IOPS=11, BW=47.2KiB/s (48.4kB/s)(6052KiB/128087msec) clat (usec): min=32, max=296601, avg=42134.53, stdev=30494.72 lat (usec): min=32, max=296602, avg=42137.18, stdev=30495.67 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 73], 10.00th=[ 11469], 20.00th=[ 20841], | 30.00th=[ 26084], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[152044], 99.50th=[189793], 99.90th=[270533], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 102, per=25.72%, avg=47.32, stdev=18.59, samples=250 iops : min= 1, max= 25, avg=11.18, stdev= 4.68, samples=250 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(6236KiB/128087msec); 0 zone resets clat (usec): min=1116, max=782646, avg=41018.86, stdev=44695.08 lat (usec): min=1117, max=782647, avg=41021.29, stdev=44694.92 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1762], 10.00th=[ 2802], 20.00th=[ 5932], | 30.00th=[ 10552], 40.00th=[ 20841], 50.00th=[ 31589], 60.00th=[ 41681], | 70.00th=[ 53740], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[179307], 99.50th=[200279], 99.90th=[467665], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 118, per=25.17%, avg=48.58, stdev=20.67, samples=251 iops : min= 1, max= 29, avg=11.49, stdev= 5.22, samples=251 lat (usec) : 50=0.26%, 100=3.42%, 250=0.62%, 500=0.13%, 750=0.03% lat (msec) : 2=3.45%, 4=3.84%, 10=7.58%, 20=9.47%, 50=38.57% lat (msec) : 100=27.28%, 250=5.11%, 500=0.20%, 1000=0.03% cpu : usr=0.09%, sys=5.53%, ctx=7030, 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=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=185KiB/s (189kB/s), 46.1KiB/s-47.2KiB/s (47.2kB/s-48.4kB/s), io=23.4MiB (24.6MB), run=128087-129934msec WRITE: bw=193KiB/s (198kB/s), 48.5KiB/s-49.5KiB/s (49.6kB/s-50.6kB/s), io=24.6MiB (25.7MB), run=128087-129934msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145171: Sat Aug 15 10:31:25 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5992KiB/261985msec) clat (msec): min=6, max=707, avg=35.07, stdev=39.09 lat (msec): min=6, max=707, avg=35.07, stdev=39.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 75], 95.00th=[ 102], | 99.00th=[ 178], 99.50th=[ 220], 99.90th=[ 456], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 125, per=27.85%, avg=25.34, stdev=17.47, samples=457 iops : min= 1, max= 31, avg= 5.69, stdev= 4.40, samples=457 write: IOPS=6, BW=24.0KiB/s (24.6kB/s)(6296KiB/261985msec); 0 zone resets clat (msec): min=32, max=525, avg=132.85, stdev=67.79 lat (msec): min=32, max=525, avg=132.85, stdev=67.79 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 117], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 220], 95.00th=[ 259], | 99.00th=[ 363], 99.50th=[ 472], 99.90th=[ 518], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 63, per=24.86%, avg=23.61, stdev=11.45, samples=513 iops : min= 1, max= 15, avg= 5.25, stdev= 2.91, samples=513 lat (msec) : 10=2.64%, 20=18.07%, 50=20.28%, 100=24.22%, 250=31.87% lat (msec) : 500=2.77%, 750=0.16% cpu : usr=0.05%, sys=1.49%, ctx=5357, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145172: Sat Aug 15 10:31:25 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(5940KiB/262379msec) clat (msec): min=6, max=600, avg=35.69, stdev=38.29 lat (msec): min=6, max=600, avg=35.69, stdev=38.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 77], 95.00th=[ 108], | 99.00th=[ 215], 99.50th=[ 241], 99.90th=[ 292], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 96, per=27.78%, avg=25.28, stdev=16.57, samples=454 iops : min= 1, max= 24, avg= 5.67, stdev= 4.19, samples=454 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6348KiB/262379msec); 0 zone resets clat (msec): min=39, max=621, avg=131.70, stdev=65.83 lat (msec): min=39, max=621, avg=131.70, stdev=65.83 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 215], 95.00th=[ 255], | 99.00th=[ 347], 99.50th=[ 422], 99.90th=[ 575], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 63, per=25.00%, avg=23.75, stdev=11.40, samples=515 iops : min= 1, max= 15, avg= 5.28, stdev= 2.89, samples=515 lat (msec) : 10=2.44%, 20=17.48%, 50=20.57%, 100=24.02%, 250=32.58% lat (msec) : 500=2.73%, 750=0.16% cpu : usr=0.04%, sys=1.44%, ctx=5247, 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=145173: Sat Aug 15 10:31:25 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6028KiB/259471msec) clat (msec): min=5, max=291, avg=34.74, stdev=33.17 lat (msec): min=5, max=291, avg=34.74, stdev=33.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 74], 95.00th=[ 105], | 99.00th=[ 169], 99.50th=[ 199], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 111, per=27.76%, avg=25.26, stdev=17.53, samples=461 iops : min= 1, max= 27, avg= 5.67, stdev= 4.42, samples=461 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6260KiB/259471msec); 0 zone resets clat (msec): min=33, max=770, avg=132.16, stdev=68.83 lat (msec): min=33, max=770, avg=132.16, stdev=68.83 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 264], | 99.00th=[ 351], 99.50th=[ 418], 99.90th=[ 625], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 63, per=25.13%, avg=23.88, stdev=11.54, samples=505 iops : min= 1, max= 15, avg= 5.32, stdev= 2.92, samples=505 lat (msec) : 10=2.90%, 20=17.38%, 50=21.06%, 100=24.51%, 250=31.18% lat (msec) : 500=2.77%, 750=0.16%, 1000=0.03% cpu : usr=0.05%, sys=1.49%, ctx=5279, 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=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=145174: Sat Aug 15 10:31:25 2026 read: IOPS=5, BW=23.1KiB/s (23.7kB/s)(6052KiB/261912msec) clat (msec): min=6, max=488, avg=36.04, stdev=37.68 lat (msec): min=6, max=488, avg=36.05, stdev=37.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 109], | 99.00th=[ 178], 99.50th=[ 194], 99.90th=[ 372], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 119, per=28.52%, avg=25.95, stdev=18.10, samples=451 iops : min= 1, max= 29, avg= 5.84, stdev= 4.55, samples=451 write: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6236KiB/261912msec); 0 zone resets clat (msec): min=30, max=766, avg=132.81, stdev=67.81 lat (msec): min=30, max=766, avg=132.81, stdev=67.81 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 117], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 262], | 99.00th=[ 359], 99.50th=[ 409], 99.90th=[ 527], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 63, per=24.84%, avg=23.60, stdev=11.55, samples=509 iops : min= 1, max= 15, avg= 5.25, stdev= 2.93, samples=509 lat (msec) : 10=3.19%, 20=17.19%, 50=20.05%, 100=25.07%, 250=31.35% lat (msec) : 500=3.06%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.43%, ctx=5204, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=91.5KiB/s (93.7kB/s), 22.6KiB/s-23.2KiB/s (23.2kB/s-23.8kB/s), io=23.4MiB (24.6MB), run=259471-262379msec WRITE: bw=95.8KiB/s (98.1kB/s), 23.8KiB/s-24.2KiB/s (24.4kB/s-24.8kB/s), io=24.6MiB (25.7MB), run=259471-262379msec 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=145227: Sat Aug 15 10:32:04 2026 read: IOPS=11, BW=189KiB/s (194kB/s)(5920KiB/31271msec) clat (usec): min=44, max=254665, avg=41557.79, stdev=31082.52 lat (usec): min=44, max=254698, avg=41560.30, stdev=31083.15 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 81], 20.00th=[ 17957], | 30.00th=[ 25560], 40.00th=[ 32375], 50.00th=[ 38011], 60.00th=[ 45876], | 70.00th=[ 55313], 80.00th=[ 64750], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[130548], 99.50th=[181404], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 62, max= 380, per=24.74%, avg=187.02, stdev=73.61, samples=61 iops : min= 3, max= 23, avg=10.93, stdev= 4.66, samples=61 write: IOPS=12, BW=204KiB/s (209kB/s)(6368KiB/31271msec); 0 zone resets clat (usec): min=1707, max=268990, avg=39299.94, stdev=39726.55 lat (usec): min=1710, max=268994, avg=39304.78, stdev=39726.09 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 3163], 10.00th=[ 4146], 20.00th=[ 6783], | 30.00th=[ 10945], 40.00th=[ 16909], 50.00th=[ 26608], 60.00th=[ 39584], | 70.00th=[ 54264], 80.00th=[ 64750], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[175113], 99.50th=[267387], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 432, per=25.49%, avg=202.67, stdev=72.89, samples=61 iops : min= 1, max= 27, avg=11.93, stdev= 4.64, samples=61 lat (usec) : 50=0.39%, 100=5.21%, 250=1.43%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.17%, 4=4.17%, 10=10.03%, 20=9.51%, 50=33.33% lat (msec) : 100=29.04%, 250=4.69%, 500=0.39% cpu : usr=0.05%, sys=6.33%, ctx=1717, 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=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=145228: Sat Aug 15 10:32:04 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(5744KiB/31217msec) clat (usec): min=39, max=326550, avg=45099.81, stdev=34300.05 lat (usec): min=39, max=326553, avg=45101.36, stdev=34300.04 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 78], 10.00th=[ 118], 20.00th=[ 22414], | 30.00th=[ 27919], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 66323], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[130548], 99.50th=[221250], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 31, max= 412, per=24.27%, avg=183.49, stdev=74.25, samples=61 iops : min= 1, max= 25, avg=10.70, stdev= 4.70, samples=61 write: IOPS=13, BW=210KiB/s (215kB/s)(6544KiB/31217msec); 0 zone resets clat (usec): min=1838, max=268096, avg=35903.49, stdev=37002.07 lat (usec): min=1840, max=268099, avg=35906.47, stdev=37002.28 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 7], | 30.00th=[ 11], 40.00th=[ 16], 50.00th=[ 24], 60.00th=[ 33], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 87], 95.00th=[ 110], | 99.00th=[ 146], 99.50th=[ 190], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 63, max= 477, per=26.25%, avg=208.67, stdev=87.63, samples=61 iops : min= 3, max= 29, avg=12.31, stdev= 5.47, samples=61 lat (usec) : 50=0.13%, 100=3.91%, 250=2.08%, 500=0.26% lat (msec) : 2=0.78%, 4=5.60%, 10=9.38%, 20=10.16%, 50=35.55% lat (msec) : 100=26.04%, 250=5.86%, 500=0.26% cpu : usr=0.08%, sys=6.16%, ctx=1723, 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=145229: Sat Aug 15 10:32:04 2026 read: IOPS=13, BW=215KiB/s (220kB/s)(6256KiB/29063msec) clat (usec): min=42, max=237210, avg=42812.18, stdev=33831.23 lat (usec): min=42, max=237211, avg=42831.23, stdev=33811.75 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 72], 10.00th=[ 84], 20.00th=[ 19530], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 81265], 95.00th=[107480], | 99.00th=[152044], 99.50th=[219153], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 94, max= 510, per=28.61%, avg=216.26, stdev=85.29, samples=57 iops : min= 5, max= 31, avg=12.79, stdev= 5.35, samples=57 write: IOPS=12, BW=208KiB/s (213kB/s)(6032KiB/29063msec); 0 zone resets clat (usec): min=1611, max=177119, avg=32331.12, stdev=32634.12 lat (usec): min=1613, max=177122, avg=32338.18, stdev=32631.47 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 13], 50.00th=[ 20], 60.00th=[ 31], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 74], 95.00th=[ 104], | 99.00th=[ 138], 99.50th=[ 157], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 31, max= 500, per=25.98%, avg=206.58, stdev=95.75, samples=57 iops : min= 1, max= 31, avg=12.16, stdev= 6.06, samples=57 lat (usec) : 50=0.65%, 100=5.34%, 250=2.08%, 500=0.26%, 750=0.13% lat (msec) : 2=0.52%, 4=5.86%, 10=9.77%, 20=10.55%, 50=35.94% lat (msec) : 100=23.18%, 250=5.73% cpu : usr=0.07%, sys=6.42%, ctx=1628, 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=145230: Sat Aug 15 10:32:04 2026 read: IOPS=11, BW=190KiB/s (195kB/s)(6032KiB/31666msec) clat (usec): min=39, max=263269, avg=41822.10, stdev=34103.32 lat (usec): min=39, max=263271, avg=41832.57, stdev=34107.23 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 82], 20.00th=[ 16909], | 30.00th=[ 27395], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[221250], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 32, max= 443, per=25.52%, avg=192.92, stdev=77.22, samples=61 iops : min= 2, max= 27, avg=11.30, stdev= 4.88, samples=61 write: IOPS=12, BW=198KiB/s (202kB/s)(6256KiB/31666msec); 0 zone resets clat (usec): min=1784, max=337805, avg=40050.40, stdev=45440.28 lat (usec): min=1788, max=337808, avg=40053.46, stdev=45440.72 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 2737], 10.00th=[ 3752], 20.00th=[ 5669], | 30.00th=[ 8225], 40.00th=[ 13698], 50.00th=[ 25035], 60.00th=[ 37487], | 70.00th=[ 51643], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[240124], 99.50th=[254804], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 31, max= 407, per=25.88%, avg=205.77, stdev=87.47, samples=60 iops : min= 1, max= 25, avg=12.12, stdev= 5.53, samples=60 lat (usec) : 50=0.26%, 100=6.77%, 250=1.43%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.17%, 4=4.69%, 10=11.33%, 20=8.33%, 50=33.72% lat (msec) : 100=25.13%, 250=6.38%, 500=0.39% cpu : usr=0.07%, sys=5.86%, ctx=1658, 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=756KiB/s (775kB/s), 184KiB/s-215KiB/s (188kB/s-220kB/s), io=23.4MiB (24.5MB), run=29063-31666msec WRITE: bw=796KiB/s (815kB/s), 198KiB/s-210KiB/s (202kB/s-215kB/s), io=24.6MiB (25.8MB), run=29063-31666msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145231: Sat Aug 15 10:32:41 2026 read: IOPS=5, BW=86.7KiB/s (88.8kB/s)(5920KiB/68290msec) clat (msec): min=7, max=488, avg=43.02, stdev=46.70 lat (msec): min=7, max=488, avg=43.02, stdev=46.70 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 87], 95.00th=[ 131], | 99.00th=[ 232], 99.50th=[ 317], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 318, per=27.11%, avg=94.35, stdev=60.04, samples=123 iops : min= 1, max= 19, avg= 5.10, stdev= 3.84, samples=123 write: IOPS=5, BW=93.2KiB/s (95.5kB/s)(6368KiB/68290msec); 0 zone resets clat (msec): min=41, max=462, avg=130.59, stdev=62.30 lat (msec): min=41, max=462, avg=130.60, stdev=62.30 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 113], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 174], 90.00th=[ 224], 95.00th=[ 253], | 99.00th=[ 338], 99.50th=[ 405], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 191, per=25.74%, avg=94.23, stdev=42.33, samples=133 iops : min= 1, max= 11, avg= 5.08, stdev= 2.75, samples=133 lat (msec) : 10=1.17%, 20=13.67%, 50=22.40%, 100=27.34%, 250=32.42% lat (msec) : 500=2.99% cpu : usr=0.05%, sys=1.54%, ctx=1349, 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=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=145232: Sat Aug 15 10:32:41 2026 read: IOPS=5, BW=83.6KiB/s (85.7kB/s)(5744KiB/68673msec) clat (msec): min=7, max=391, avg=41.32, stdev=41.91 lat (msec): min=7, max=391, avg=41.32, stdev=41.91 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 88], 95.00th=[ 127], | 99.00th=[ 205], 99.50th=[ 211], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 30, max= 347, per=28.07%, avg=97.67, stdev=66.37, samples=114 iops : min= 1, max= 21, avg= 5.31, stdev= 4.24, samples=114 write: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6544KiB/68673msec); 0 zone resets clat (msec): min=46, max=414, avg=130.70, stdev=64.23 lat (msec): min=46, max=414, avg=130.71, stdev=64.23 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 174], 90.00th=[ 230], 95.00th=[ 271], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 31, max= 192, per=26.46%, avg=96.85, stdev=42.88, samples=131 iops : min= 1, max= 12, avg= 5.25, stdev= 2.80, samples=131 lat (msec) : 10=1.17%, 20=14.19%, 50=21.22%, 100=27.34%, 250=32.29% lat (msec) : 500=3.78% cpu : usr=0.06%, sys=1.53%, ctx=1389, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145233: Sat Aug 15 10:32:41 2026 read: IOPS=5, BW=94.5KiB/s (96.8kB/s)(6256KiB/66196msec) clat (msec): min=8, max=471, avg=39.03, stdev=39.83 lat (msec): min=8, max=471, avg=39.04, stdev=39.83 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 49], 90.00th=[ 70], 95.00th=[ 111], | 99.00th=[ 201], 99.50th=[ 228], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 30, max= 320, per=29.56%, avg=102.88, stdev=66.51, samples=120 iops : min= 1, max= 20, avg= 5.63, stdev= 4.24, samples=120 write: IOPS=5, BW=91.1KiB/s (93.3kB/s)(6032KiB/66196msec); 0 zone resets clat (msec): min=39, max=477, avg=134.10, stdev=69.24 lat (msec): min=39, max=477, avg=134.10, stdev=69.24 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 112], 60.00th=[ 130], | 70.00th=[ 146], 80.00th=[ 171], 90.00th=[ 234], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 456], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 30, max= 191, per=25.12%, avg=91.93, stdev=42.35, samples=129 iops : min= 1, max= 11, avg= 4.94, stdev= 2.74, samples=129 lat (msec) : 10=0.91%, 20=13.02%, 50=27.99%, 100=23.96%, 250=30.60% lat (msec) : 500=3.52% cpu : usr=0.06%, sys=1.76%, ctx=1457, 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=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=145234: Sat Aug 15 10:32:41 2026 read: IOPS=5, BW=89.4KiB/s (91.6kB/s)(6032KiB/67467msec) clat (msec): min=9, max=465, avg=42.66, stdev=42.30 lat (msec): min=9, max=465, avg=42.66, stdev=42.30 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 37], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 85], 95.00th=[ 131], | 99.00th=[ 203], 99.50th=[ 215], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 31, max= 288, per=28.18%, avg=98.08, stdev=60.32, samples=120 iops : min= 1, max= 18, avg= 5.34, stdev= 3.85, samples=120 write: IOPS=5, BW=92.7KiB/s (94.0kB/s)(6256KiB/67467msec); 0 zone resets clat (msec): min=34, max=541, avg=131.08, stdev=65.80 lat (msec): min=34, max=541, avg=131.09, stdev=65.80 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 72], 20.00th=[ 83], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 115], 60.00th=[ 125], | 70.00th=[ 144], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 251], | 99.00th=[ 384], 99.50th=[ 430], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 224, per=25.60%, avg=93.71, stdev=45.20, samples=131 iops : min= 1, max= 14, avg= 5.05, stdev= 2.94, samples=131 lat (msec) : 10=0.65%, 20=12.50%, 50=24.61%, 100=27.86%, 250=31.64% lat (msec) : 500=2.60%, 750=0.13% cpu : usr=0.04%, sys=1.68%, ctx=1375, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=349KiB/s (357kB/s), 83.6KiB/s-94.5KiB/s (85.7kB/s-96.8kB/s), io=23.4MiB (24.5MB), run=66196-68673msec WRITE: bw=367KiB/s (376kB/s), 91.1KiB/s-95.3KiB/s (93.3kB/s-97.6kB/s), io=24.6MiB (25.8MB), run=66196-68673msec 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=145254: Sat Aug 15 10:33:00 2026 read: IOPS=1, BW=1727KiB/s (1768kB/s)(7168KiB/4151msec) clat (msec): min=65, max=777, avg=306.16, stdev=263.80 lat (msec): min=65, max=777, avg=306.16, stdev=263.80 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 114], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 253], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 558], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 2027, max= 3984, per=57.35%, avg=2422.40, stdev=872.97, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1233KiB/s (1263kB/s)(5120KiB/4151msec); 0 zone resets clat (msec): min=165, max=476, avg=299.92, stdev=113.94 lat (msec): min=165, max=476, avg=300.00, stdev=113.93 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1992, max= 4039, per=42.72%, avg=2526.25, stdev=1008.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=4.34%, ctx=70, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145256: Sat Aug 15 10:33:00 2026 read: IOPS=0, BW=422KiB/s (433kB/s)(2048KiB/4848msec) clat (msec): min=128, max=141, avg=134.90, stdev= 9.30 lat (msec): min=128, max=141, avg=134.90, stdev= 9.30 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 142], 95.00th=[ 142], | 99.00th=[ 142], 99.50th=[ 142], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 1706, max= 2035, per=44.28%, avg=1870.50, stdev=232.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2112KiB/s (2163kB/s)(10.0MiB/4848msec); 0 zone resets clat (msec): min=178, max=874, avg=450.46, stdev=264.32 lat (msec): min=178, max=876, avg=450.84, stdev=264.74 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 190], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 300], 60.00th=[ 414], | 70.00th=[ 575], 80.00th=[ 701], 90.00th=[ 793], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1992, max= 5965, per=51.09%, avg=3021.50, stdev=1660.46, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.89%, ctx=64, 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=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=145258: Sat Aug 15 10:33:00 2026 read: IOPS=1, BW=1288KiB/s (1318kB/s)(6144KiB/4772msec) clat (msec): min=105, max=797, avg=306.64, stdev=262.91 lat (msec): min=105, max=797, avg=306.64, stdev=262.91 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 224], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1992, max= 3976, per=59.32%, avg=2505.50, stdev=980.49, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1288KiB/s (1318kB/s)(6144KiB/4772msec); 0 zone resets clat (msec): min=154, max=808, avg=402.63, stdev=228.00 lat (msec): min=154, max=809, avg=402.84, stdev=228.26 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 401], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1988, max= 2039, per=34.08%, avg=2015.40, stdev=23.63, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=33.33%, 1000=16.67% cpu : usr=0.00%, sys=3.50%, ctx=96, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145259: Sat Aug 15 10:33:00 2026 read: IOPS=1, BW=1130KiB/s (1157kB/s)(5120KiB/4532msec) clat (msec): min=74, max=155, avg=126.21, stdev=31.23 lat (msec): min=74, max=155, avg=126.22, stdev=31.23 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 157], 95.00th=[ 157], | 99.00th=[ 157], 99.50th=[ 157], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 2035, max= 6119, per=96.52%, avg=4077.00, stdev=2887.82, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1582KiB/s (1620kB/s)(7168KiB/4532msec); 0 zone resets clat (msec): min=174, max=880, avg=497.07, stdev=318.75 lat (msec): min=174, max=880, avg=497.16, stdev=318.75 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 222], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 313], 60.00th=[ 743], | 70.00th=[ 743], 80.00th=[ 869], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 2019, max= 2039, per=34.33%, avg=2030.20, stdev= 7.69, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.97%, ctx=85, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4224KiB/s (4326kB/s), 422KiB/s-1727KiB/s (433kB/s-1768kB/s), io=20.0MiB (20.0MB), run=4151-4848msec WRITE: bw=5914KiB/s (6056kB/s), 1233KiB/s-2112KiB/s (1263kB/s-2163kB/s), io=28.0MiB (29.4MB), run=4151-4848msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145252: Sat Aug 15 10:33:01 2026 read: IOPS=2, BW=2690KiB/s (2754kB/s)(7168KiB/2665msec) clat (usec): min=539, max=562096, avg=231534.23, stdev=191364.73 lat (usec): min=541, max=562097, avg=231535.71, stdev=191364.63 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 6063], | 30.00th=[231736], 40.00th=[231736], 50.00th=[250610], 60.00th=[274727], | 70.00th=[274727], 80.00th=[295699], 90.00th=[566232], 95.00th=[566232], | 99.00th=[566232], 99.50th=[566232], 99.90th=[566232], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 1996, max= 3052, per=55.04%, avg=2270.75, stdev=521.13, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1921KiB/s (1967kB/s)(5120KiB/2665msec); 0 zone resets clat (msec): min=123, max=258, avg=198.72, stdev=53.79 lat (msec): min=123, max=258, avg=198.80, stdev=53.79 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1996, max= 2035, per=34.89%, avg=2015.50, stdev=27.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=12.80%, ctx=138, 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=145253: Sat Aug 15 10:33:01 2026 read: IOPS=0, BW=413KiB/s (423kB/s)(2048KiB/4963msec) clat (usec): min=564, max=212454, avg=106509.47, stdev=149828.82 lat (usec): min=565, max=212456, avg=106511.04, stdev=149829.48 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=[212861], | 70.00th=[212861], 80.00th=[212861], 90.00th=[212861], 95.00th=[212861], | 99.00th=[212861], 99.50th=[212861], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 2031, max= 2035, per=49.27%, avg=2033.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2063KiB/s (2113kB/s)(10.0MiB/4963msec); 0 zone resets clat (msec): min=105, max=905, avg=417.31, stdev=268.27 lat (msec): min=105, max=905, avg=417.50, stdev=268.45 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 163], | 30.00th=[ 211], 40.00th=[ 247], 50.00th=[ 300], 60.00th=[ 401], | 70.00th=[ 460], 80.00th=[ 617], 90.00th=[ 760], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1996, max= 6095, per=46.72%, avg=2699.17, stdev=1663.68, samples=6 iops : min= 1, max= 5, avg= 1.67, stdev= 1.63, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=10.86%, ctx=167, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145255: Sat Aug 15 10:33:01 2026 read: IOPS=1, BW=1638KiB/s (1678kB/s)(6144KiB/3750msec) clat (usec): min=1627, max=539931, avg=253822.68, stdev=184652.86 lat (usec): min=1628, max=539932, avg=253824.11, stdev=184652.88 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1631], 10.00th=[ 1631], 20.00th=[162530], | 30.00th=[162530], 40.00th=[198181], 50.00th=[198181], 60.00th=[250610], | 70.00th=[371196], 80.00th=[371196], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 2011, max= 3992, per=60.96%, avg=2515.25, stdev=984.54, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1638KiB/s (1678kB/s)(6144KiB/3750msec); 0 zone resets clat (msec): min=132, max=836, avg=329.89, stdev=255.85 lat (msec): min=132, max=836, avg=330.62, stdev=255.73 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 284], | 70.00th=[ 296], 80.00th=[ 296], 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= 1488, max= 4023, per=40.07%, avg=2314.60, stdev=982.57, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=10.35%, ctx=186, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145257: Sat Aug 15 10:33:01 2026 read: IOPS=1, BW=1643KiB/s (1683kB/s)(5120KiB/3116msec) clat (usec): min=690, max=408357, avg=187071.31, stdev=190882.27 lat (usec): min=692, max=408358, avg=187072.58, stdev=190882.15 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 1270], 40.00th=[ 1270], 50.00th=[173016], 60.00th=[173016], | 70.00th=[354419], 80.00th=[354419], 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= 1996, max= 6083, per=97.90%, avg=4039.50, stdev=2889.95, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2300KiB/s (2356kB/s)(7168KiB/3116msec); 0 zone resets clat (msec): min=128, max=638, avg=289.43, stdev=173.70 lat (msec): min=128, max=638, avg=289.51, stdev=173.73 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 132], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 262], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 330], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1565, max= 2035, per=32.87%, avg=1899.00, stdev=223.35, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=41.67%, 750=8.33% cpu : usr=0.06%, sys=12.62%, ctx=147, 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=4127KiB/s (4226kB/s), 413KiB/s-2690KiB/s (423kB/s-2754kB/s), io=20.0MiB (20.0MB), run=2665-4963msec WRITE: bw=5777KiB/s (5916kB/s), 1638KiB/s-2300KiB/s (1678kB/s-2356kB/s), io=28.0MiB (29.4MB), run=2665-4963msec 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=145267: Sat Aug 15 10:33:17 2026 read: IOPS=0, BW=2557KiB/s (2619kB/s)(12.0MiB/4805msec) clat (msec): min=923, max=2294, avg=1570.09, stdev=688.74 lat (msec): min=923, max=2294, avg=1570.09, stdev=688.74 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.73%, ctx=67, 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=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=145269: Sat Aug 15 10:33:17 2026 read: IOPS=0, BW=811KiB/s (830kB/s)(4096KiB/5053msec) clat (nsec): min=1956.4M, max=1956.4M, avg=1956386761.00, stdev= 0.00 lat (nsec): min=1956.4M, max=1956.4M, avg=1956389218.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1955], 5.00th=[ 1955], 10.00th=[ 1955], 20.00th=[ 1955], | 30.00th=[ 1955], 40.00th=[ 1955], 50.00th=[ 1955], 60.00th=[ 1955], | 70.00th=[ 1955], 80.00th=[ 1955], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1621KiB/s (1660kB/s)(8192KiB/5053msec); 0 zone resets clat (msec): min=397, max=2630, avg=1513.90, stdev=1579.41 lat (msec): min=398, max=2631, avg=1514.84, stdev=1578.79 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 2635], | 70.00th=[ 2635], 80.00th=[ 2635], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.45%, ctx=47, 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=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=145270: Sat Aug 15 10:33:17 2026 write: IOPS=1, BW=7867KiB/s (8056kB/s)(12.0MiB/1562msec); 0 zone resets clat (msec): min=432, max=660, avg=512.75, stdev=128.02 lat (msec): min=432, max=663, avg=514.49, stdev=129.20 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 5843, max= 7728, per=100.00%, avg=6785.50, stdev=1332.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=8.01%, ctx=38, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145271: Sat Aug 15 10:33:17 2026 write: IOPS=1, BW=4342KiB/s (4446kB/s)(12.0MiB/2830msec); 0 zone resets clat (msec): min=445, max=1309, avg=941.89, stdev=445.80 lat (msec): min=446, max=1309, avg=942.78, stdev=446.03 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 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= 6077, max= 8078, per=100.00%, avg=7077.50, stdev=1414.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.85%, ctx=47, 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=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=3242KiB/s (3320kB/s), 811KiB/s-2557KiB/s (830kB/s-2619kB/s), io=16.0MiB (16.8MB), run=4805-5053msec WRITE: bw=6485KiB/s (6640kB/s), 1621KiB/s-7867KiB/s (1660kB/s-8056kB/s), io=32.0MiB (33.6MB), run=1562-5053msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145272: Sat Aug 15 10:33:17 2026 read: IOPS=0, BW=2938KiB/s (3008kB/s)(12.0MiB/4183msec) clat (msec): min=964, max=2234, avg=1393.84, stdev=727.77 lat (msec): min=964, max=2234, avg=1393.84, stdev=727.77 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7641, max= 8094, per=100.00%, avg=7867.50, stdev=320.32, 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=10.38%, ctx=461, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145273: Sat Aug 15 10:33:17 2026 read: IOPS=0, BW=921KiB/s (943kB/s)(4096KiB/4446msec) clat (nsec): min=1023.9M, max=1023.9M, avg=1023880757.00, stdev= 0.00 lat (nsec): min=1023.9M, max=1023.9M, avg=1023883107.00, 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= 7641, max= 7641, per=100.00%, avg=7641.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1843KiB/s (1887kB/s)(8192KiB/4446msec); 0 zone resets clat (msec): min=750, max=2616, avg=1683.44, stdev=1319.16 lat (msec): min=750, max=2661, avg=1706.46, stdev=1351.25 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 2601], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.49%, ctx=109, 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=145274: Sat Aug 15 10:33:17 2026 write: IOPS=0, BW=2249KiB/s (2303kB/s)(12.0MiB/5464msec); 0 zone resets clat (msec): min=623, max=2586, avg=1803.85, stdev=1040.42 lat (msec): min=623, max=2587, avg=1804.65, stdev=1040.55 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 2198], 50.00th=[ 2198], 60.00th=[ 2198], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=2.65%, ctx=60, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145275: Sat Aug 15 10:33:17 2026 write: IOPS=0, BW=3780KiB/s (3870kB/s)(12.0MiB/3251msec); 0 zone resets clat (msec): min=308, max=2503, avg=1081.13, stdev=1233.26 lat (msec): min=312, max=2503, avg=1082.90, stdev=1231.94 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7585, max= 8175, per=100.00%, avg=7880.00, stdev=417.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.06%, sys=3.82%, 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=3685KiB/s (3774kB/s), 921KiB/s-2938KiB/s (943kB/s-3008kB/s), io=16.0MiB (16.8MB), run=4183-4446msec WRITE: bw=5997KiB/s (6141kB/s), 1843KiB/s-3780KiB/s (1887kB/s-3870kB/s), io=32.0MiB (33.6MB), run=3251-5464msec