== sanity test 398b: DIO and buffer IO race ============== 16:43:01 (1786567381) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.48548 s, 9.2 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=145409: Wed Aug 12 16:45:40 2026 read: IOPS=10, BW=43.0KiB/s (44.1kB/s)(5992KiB/139203msec) clat (usec): min=25, max=854455, avg=44851.79, stdev=40201.54 lat (usec): min=25, max=854455, avg=44854.36, stdev=40200.63 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 90], 20.00th=[ 19530], | 30.00th=[ 25560], 40.00th=[ 31065], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[156238], 99.50th=[193987], 99.90th=[278922], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 104, per=25.24%, avg=42.91, stdev=20.10, samples=272 iops : min= 1, max= 26, avg=10.09, stdev= 5.08, samples=272 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6296KiB/139203msec); 0 zone resets clat (usec): min=926, max=590648, avg=45468.52, stdev=51065.73 lat (usec): min=927, max=590649, avg=45470.81, stdev=51065.23 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1811], 20.00th=[ 4817], | 30.00th=[ 9503], 40.00th=[ 19006], 50.00th=[ 30278], 60.00th=[ 43254], | 70.00th=[ 56886], 80.00th=[ 76022], 90.00th=[111674], 95.00th=[141558], | 99.00th=[212861], 99.50th=[287310], 99.90th=[387974], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 127, per=25.39%, avg=45.20, stdev=21.24, samples=271 iops : min= 1, max= 31, avg=10.68, stdev= 5.38, samples=271 lat (usec) : 50=0.81%, 100=4.33%, 250=0.42%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=5.53%, 4=3.35%, 10=7.23%, 20=9.02%, 50=34.60% lat (msec) : 100=24.80%, 250=9.31%, 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.31%, ctx=6407, 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=145410: Wed Aug 12 16:45:40 2026 read: IOPS=10, BW=43.6KiB/s (44.7kB/s)(5940KiB/136084msec) clat (usec): min=27, max=416834, avg=44059.12, stdev=35958.91 lat (usec): min=27, max=416836, avg=44060.95, stdev=35958.99 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 84], 20.00th=[ 18220], | 30.00th=[ 24773], 40.00th=[ 30278], 50.00th=[ 37487], 60.00th=[ 45351], | 70.00th=[ 54789], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[107480], | 99.00th=[166724], 99.50th=[191890], 99.90th=[337642], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 120, per=25.77%, avg=43.80, stdev=20.19, samples=264 iops : min= 1, max= 30, avg=10.31, stdev= 5.12, samples=264 write: IOPS=11, BW=46.6KiB/s (47.8kB/s)(6348KiB/136084msec); 0 zone resets clat (usec): min=939, max=921526, avg=44193.86, stdev=51252.93 lat (usec): min=941, max=921528, avg=44200.12, stdev=51251.47 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1991], 20.00th=[ 5014], | 30.00th=[ 9634], 40.00th=[ 19006], 50.00th=[ 30802], 60.00th=[ 42206], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[104334], 95.00th=[130548], | 99.00th=[210764], 99.50th=[235930], 99.90th=[476054], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 122, per=26.11%, avg=46.48, stdev=21.88, samples=266 iops : min= 1, max= 30, avg=10.98, stdev= 5.52, samples=266 lat (usec) : 50=0.65%, 100=4.43%, 250=0.39%, 500=0.07%, 1000=0.20% lat (msec) : 2=5.27%, 4=3.58%, 10=7.23%, 20=9.70%, 50=33.85% lat (msec) : 100=26.01%, 250=8.37%, 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=5.42%, ctx=6520, 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=145411: Wed Aug 12 16:45:40 2026 read: IOPS=10, BW=42.9KiB/s (43.9kB/s)(6028KiB/140599msec) clat (usec): min=30, max=619535, avg=44421.20, stdev=38487.54 lat (usec): min=30, max=619536, avg=44426.24, stdev=38488.65 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 652], 20.00th=[ 19006], | 30.00th=[ 25035], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[173016], 99.50th=[214959], 99.90th=[333448], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 7, max= 108, per=25.31%, avg=43.03, stdev=21.03, samples=272 iops : min= 1, max= 27, avg=10.13, stdev= 5.34, samples=272 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(6260KiB/140599msec); 0 zone resets clat (usec): min=986, max=1169.5k, avg=46788.87, stdev=55643.44 lat (usec): min=988, max=1169.5k, avg=46791.96, stdev=55644.29 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 1762], | 20.00th=[ 4883], 30.00th=[ 10421], 40.00th=[ 21627], | 50.00th=[ 32900], 60.00th=[ 43779], 70.00th=[ 59507], | 80.00th=[ 80217], 90.00th=[ 110625], 95.00th=[ 141558], | 99.00th=[ 217056], 99.50th=[ 238027], 99.90th=[ 316670], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 147, per=25.01%, avg=44.52, stdev=20.62, samples=273 iops : min= 1, max= 36, avg=10.49, stdev= 5.22, samples=273 lat (usec) : 50=0.62%, 100=4.10%, 250=0.13%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=6.02%, 4=3.35%, 10=5.99%, 20=9.67%, 50=35.61% lat (msec) : 100=25.23%, 250=8.79%, 500=0.29%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=5.05%, ctx=6482, 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=145412: Wed Aug 12 16:45:40 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(6052KiB/137623msec) clat (usec): min=35, max=981551, avg=44374.90, stdev=42639.30 lat (usec): min=35, max=981552, avg=44377.86, stdev=42639.97 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 87], 20.00th=[ 19530], | 30.00th=[ 25035], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 66847], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[164627], 99.50th=[206570], 99.90th=[434111], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 7, max= 119, per=26.07%, avg=44.32, stdev=21.35, samples=266 iops : min= 1, max= 29, avg=10.44, stdev= 5.40, samples=266 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6236KiB/137623msec); 0 zone resets clat (usec): min=954, max=571161, avg=44930.00, stdev=48979.36 lat (usec): min=955, max=571161, avg=44931.98, stdev=48979.22 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1876], 20.00th=[ 4752], | 30.00th=[ 9110], 40.00th=[ 19006], 50.00th=[ 31589], 60.00th=[ 43254], | 70.00th=[ 58459], 80.00th=[ 78119], 90.00th=[106431], 95.00th=[135267], | 99.00th=[221250], 99.50th=[242222], 99.90th=[320865], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 96, per=25.22%, avg=44.90, stdev=20.30, samples=270 iops : min= 1, max= 24, avg=10.60, stdev= 5.16, samples=270 lat (usec) : 50=0.55%, 100=4.49%, 250=0.23%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.53%, 4=3.58%, 10=7.10%, 20=9.28%, 50=34.24% lat (msec) : 100=26.04%, 250=8.33%, 500=0.23%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.39%, ctx=6459, 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=171KiB/s (175kB/s), 42.9KiB/s-43.0KiB/s (43.9kB/s-45.0kB/s), io=23.4MiB (24.6MB), run=136084-140599msec WRITE: bw=179KiB/s (183kB/s), 44.5KiB/s-46.6KiB/s (45.6kB/s-47.8kB/s), io=24.6MiB (25.7MB), run=136084-140599msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145405: Wed Aug 12 16:48:20 2026 read: IOPS=4, BW=19.0KiB/s (20.4kB/s)(5992KiB/300340msec) clat (msec): min=5, max=917, avg=43.01, stdev=46.55 lat (msec): min=5, max=917, avg=43.01, stdev=46.55 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 118], | 99.00th=[ 228], 99.50th=[ 271], 99.90th=[ 502], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 79, per=28.79%, avg=22.74, stdev=15.37, samples=507 iops : min= 1, max= 19, avg= 5.04, stdev= 3.87, samples=507 write: IOPS=5, BW=20.0KiB/s (21.5kB/s)(6296KiB/300340msec); 0 zone resets clat (msec): min=38, max=577, avg=149.61, stdev=73.97 lat (msec): min=38, max=577, avg=149.61, stdev=73.97 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 199], 90.00th=[ 249], 95.00th=[ 305], | 99.00th=[ 393], 99.50th=[ 443], 99.90th=[ 542], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 48, per=24.89%, avg=20.66, stdev= 9.85, samples=584 iops : min= 1, max= 12, avg= 4.51, stdev= 2.53, samples=584 lat (msec) : 10=2.38%, 20=10.71%, 50=24.19%, 100=21.52%, 250=35.87% lat (msec) : 500=5.18%, 750=0.13%, 1000=0.03% cpu : usr=0.03%, sys=1.30%, ctx=5514, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145406: Wed Aug 12 16:48:20 2026 read: IOPS=4, BW=19.9KiB/s (20.3kB/s)(5940KiB/299182msec) clat (msec): min=5, max=960, avg=42.53, stdev=47.76 lat (msec): min=5, max=960, avg=42.54, stdev=47.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 78], 95.00th=[ 113], | 99.00th=[ 220], 99.50th=[ 271], 99.90th=[ 667], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 95, per=29.00%, avg=22.91, stdev=15.05, samples=498 iops : min= 1, max= 23, avg= 5.09, stdev= 3.80, samples=498 write: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6348KiB/299182msec); 0 zone resets clat (msec): min=39, max=632, avg=148.41, stdev=75.10 lat (msec): min=39, max=632, avg=148.41, stdev=75.10 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 115], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 249], 95.00th=[ 296], | 99.00th=[ 401], 99.50th=[ 435], 99.90th=[ 567], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 55, per=25.19%, avg=20.91, stdev=10.02, samples=581 iops : min= 1, max= 13, avg= 4.57, stdev= 2.59, samples=581 lat (msec) : 10=2.05%, 20=11.17%, 50=23.44%, 100=23.50%, 250=34.44% lat (msec) : 500=5.21%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.35%, ctx=5690, 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=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=145407: Wed Aug 12 16:48:20 2026 read: IOPS=5, BW=20.2KiB/s (20.7kB/s)(6028KiB/298787msec) clat (msec): min=5, max=652, avg=44.46, stdev=44.60 lat (msec): min=5, max=652, avg=44.47, stdev=44.59 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 62], 90.00th=[ 91], 95.00th=[ 125], | 99.00th=[ 213], 99.50th=[ 275], 99.90th=[ 502], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 95, per=28.61%, avg=22.60, stdev=15.67, samples=513 iops : min= 1, max= 23, avg= 5.00, stdev= 3.96, samples=513 write: IOPS=5, BW=20.0KiB/s (21.5kB/s)(6260KiB/298787msec); 0 zone resets clat (msec): min=37, max=1186, avg=147.82, stdev=80.34 lat (msec): min=37, max=1186, avg=147.83, stdev=80.34 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 241], 95.00th=[ 300], | 99.00th=[ 418], 99.50th=[ 518], 99.90th=[ 676], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 48, per=25.33%, avg=21.03, stdev= 9.83, samples=571 iops : min= 1, max= 12, avg= 4.61, stdev= 2.54, samples=571 lat (msec) : 10=1.86%, 20=10.74%, 50=23.31%, 100=23.80%, 250=35.09% lat (msec) : 500=4.88%, 750=0.29%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5546, 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=145408: Wed Aug 12 16:48:20 2026 read: IOPS=5, BW=20.3KiB/s (20.8kB/s)(6052KiB/297829msec) clat (msec): min=5, max=474, avg=42.56, stdev=40.43 lat (msec): min=5, max=474, avg=42.56, stdev=40.43 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 121], | 99.00th=[ 205], 99.50th=[ 249], 99.90th=[ 405], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 96, per=28.96%, avg=22.88, stdev=15.93, samples=509 iops : min= 1, max= 24, avg= 5.07, stdev= 4.04, samples=509 write: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6236KiB/297829msec); 0 zone resets clat (msec): min=34, max=1010, avg=149.40, stdev=79.14 lat (msec): min=34, max=1010, avg=149.40, stdev=79.14 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 78], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 194], 90.00th=[ 247], 95.00th=[ 296], | 99.00th=[ 426], 99.50th=[ 498], 99.90th=[ 676], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 55, per=25.00%, avg=20.75, stdev= 9.78, samples=576 iops : min= 1, max= 13, avg= 4.53, stdev= 2.52, samples=576 lat (msec) : 10=2.25%, 20=11.49%, 50=23.31%, 100=22.53%, 250=35.42% lat (msec) : 500=4.79%, 750=0.20%, 2000=0.03% cpu : usr=0.03%, sys=1.32%, ctx=5549, 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=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=79.9KiB/s (81.9kB/s), 19.9KiB/s-20.3KiB/s (20.3kB/s-20.8kB/s), io=23.4MiB (24.6MB), run=297829-300340msec WRITE: bw=83.7KiB/s (85.7kB/s), 20.9KiB/s-21.2KiB/s (21.4kB/s-21.7kB/s), io=24.6MiB (25.7MB), run=297829-300340msec 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=145474: Wed Aug 12 16:49:01 2026 read: IOPS=12, BW=193KiB/s (198kB/s)(5920KiB/30596msec) clat (usec): min=35, max=242837, avg=42871.15, stdev=34445.07 lat (usec): min=35, max=242838, avg=42872.41, stdev=34445.04 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 18482], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 64750], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[177210], 99.50th=[235930], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 380, per=26.40%, avg=193.28, stdev=75.04, samples=60 iops : min= 1, max= 23, avg=11.37, stdev= 4.75, samples=60 write: IOPS=13, BW=208KiB/s (213kB/s)(6368KiB/30596msec); 0 zone resets clat (usec): min=1366, max=251564, avg=36047.03, stdev=37975.65 lat (usec): min=1368, max=251567, avg=36050.42, stdev=37977.59 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2343], 10.00th=[ 3785], 20.00th=[ 6390], | 30.00th=[ 9241], 40.00th=[ 13304], 50.00th=[ 22938], 60.00th=[ 32637], | 70.00th=[ 44827], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[168821], 99.50th=[217056], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 29, max= 512, per=27.12%, avg=208.80, stdev=92.13, samples=60 iops : min= 1, max= 32, avg=12.33, stdev= 5.85, samples=60 lat (usec) : 50=1.17%, 100=6.25%, 250=0.78%, 500=0.26% lat (msec) : 2=2.08%, 4=3.65%, 10=11.07%, 20=9.51%, 50=35.03% lat (msec) : 100=24.35%, 250=5.73%, 500=0.13% cpu : usr=0.05%, sys=5.62%, ctx=1515, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145476: Wed Aug 12 16:49:01 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(5744KiB/32686msec) clat (usec): min=39, max=245653, avg=43128.64, stdev=36003.35 lat (usec): min=40, max=245655, avg=43129.84, stdev=36003.29 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 14746], | 30.00th=[ 25297], 40.00th=[ 32900], 50.00th=[ 37487], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[102237], | 99.00th=[154141], 99.50th=[231736], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 29, max= 384, per=24.94%, avg=182.54, stdev=87.40, samples=61 iops : min= 1, max= 24, avg=10.69, stdev= 5.58, samples=61 write: IOPS=12, BW=200KiB/s (205kB/s)(6544KiB/32686msec); 0 zone resets clat (usec): min=1543, max=511189, avg=41090.07, stdev=55328.01 lat (usec): min=1546, max=511192, avg=41100.65, stdev=55342.57 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2008], 10.00th=[ 3458], 20.00th=[ 6456], | 30.00th=[ 9896], 40.00th=[ 16581], 50.00th=[ 24773], 60.00th=[ 34341], | 70.00th=[ 44303], 80.00th=[ 63701], 90.00th=[ 96994], 95.00th=[130548], | 99.00th=[223347], 99.50th=[371196], 99.90th=[509608], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 29, max= 478, per=25.72%, avg=198.06, stdev=102.03, samples=64 iops : min= 1, max= 29, avg=11.67, stdev= 6.46, samples=64 lat (usec) : 50=0.65%, 100=7.16%, 250=0.78%, 750=0.13% lat (msec) : 2=2.73%, 4=4.30%, 10=9.64%, 20=10.16%, 50=34.38% lat (msec) : 100=22.53%, 250=7.03%, 500=0.39%, 750=0.13% cpu : usr=0.07%, sys=5.80%, ctx=1546, 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=145477: Wed Aug 12 16:49:01 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(6256KiB/29408msec) clat (usec): min=40, max=328695, avg=39362.85, stdev=32825.22 lat (usec): min=40, max=328697, avg=39367.01, stdev=32825.64 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 76], 20.00th=[ 15139], | 30.00th=[ 25822], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 71828], 95.00th=[ 91751], | 99.00th=[139461], 99.50th=[256902], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 63, max= 448, per=29.34%, avg=214.79, stdev=85.87, samples=57 iops : min= 3, max= 28, avg=12.72, stdev= 5.45, samples=57 write: IOPS=12, BW=205KiB/s (210kB/s)(6032KiB/29408msec); 0 zone resets clat (usec): min=1432, max=217310, avg=36555.14, stdev=37544.26 lat (usec): min=1434, max=217311, avg=36566.55, stdev=37538.39 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2024], 10.00th=[ 2933], 20.00th=[ 5669], | 30.00th=[ 9634], 40.00th=[ 15401], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 46924], 80.00th=[ 61080], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[164627], 99.50th=[191890], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 62, max= 443, per=26.36%, avg=203.00, stdev=90.95, samples=57 iops : min= 3, max= 27, avg=11.98, stdev= 5.74, samples=57 lat (usec) : 50=0.39%, 100=7.03%, 250=0.52%, 500=0.26%, 1000=0.26% lat (msec) : 2=2.99%, 4=5.86%, 10=7.16%, 20=9.51%, 50=36.72% lat (msec) : 100=23.83%, 250=5.21%, 500=0.26% cpu : usr=0.08%, sys=5.87%, ctx=1580, 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=145478: Wed Aug 12 16:49:01 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(6032KiB/30012msec) clat (usec): min=41, max=326320, avg=44227.41, stdev=36999.60 lat (usec): min=41, max=326322, avg=44229.18, stdev=36999.69 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 16057], | 30.00th=[ 25822], 40.00th=[ 35390], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 54264], 80.00th=[ 64750], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[154141], 99.50th=[219153], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 31, max= 372, per=27.29%, avg=199.78, stdev=72.20, samples=59 iops : min= 1, max= 23, avg=11.78, stdev= 4.58, samples=59 write: IOPS=13, BW=208KiB/s (213kB/s)(6256KiB/30012msec); 0 zone resets clat (usec): min=1586, max=236934, avg=33958.00, stdev=37548.53 lat (usec): min=1588, max=236936, avg=33961.90, stdev=37548.42 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1926], 10.00th=[ 3228], 20.00th=[ 5342], | 30.00th=[ 8979], 40.00th=[ 13042], 50.00th=[ 21365], 60.00th=[ 31327], | 70.00th=[ 42730], 80.00th=[ 55313], 90.00th=[ 79168], 95.00th=[106431], | 99.00th=[183501], 99.50th=[233833], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 64, max= 410, per=27.59%, avg=212.45, stdev=77.93, samples=58 iops : min= 4, max= 25, avg=12.55, stdev= 4.90, samples=58 lat (usec) : 50=0.65%, 100=6.51%, 250=0.91%, 500=0.13% lat (msec) : 2=3.26%, 4=3.26%, 10=10.68%, 20=11.46%, 50=33.33% lat (msec) : 100=24.09%, 250=5.60%, 500=0.13% cpu : usr=0.05%, sys=5.92%, ctx=1520, 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=733KiB/s (750kB/s), 176KiB/s-213KiB/s (180kB/s-218kB/s), io=23.4MiB (24.5MB), run=29408-32686msec WRITE: bw=771KiB/s (789kB/s), 200KiB/s-208KiB/s (205kB/s-213kB/s), io=24.6MiB (25.8MB), run=29408-32686msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145479: Wed Aug 12 16:49:41 2026 read: IOPS=5, BW=82.1KiB/s (84.0kB/s)(5920KiB/72128msec) clat (msec): min=5, max=295, avg=42.21, stdev=39.28 lat (msec): min=5, max=295, avg=42.21, stdev=39.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 86], 95.00th=[ 110], | 99.00th=[ 236], 99.50th=[ 268], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 288, per=26.93%, avg=88.88, stdev=51.85, samples=129 iops : min= 1, max= 18, avg= 4.83, stdev= 3.33, samples=129 write: IOPS=5, BW=88.3KiB/s (90.4kB/s)(6368KiB/72128msec); 0 zone resets clat (msec): min=41, max=428, avg=141.07, stdev=61.79 lat (msec): min=41, max=428, avg=141.07, stdev=61.79 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 264], | 99.00th=[ 355], 99.50th=[ 426], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 30, max= 191, per=25.93%, avg=89.98, stdev=36.83, samples=138 iops : min= 1, max= 11, avg= 4.89, stdev= 2.43, samples=138 lat (msec) : 10=1.30%, 20=12.24%, 50=22.53%, 100=23.18%, 250=37.11% lat (msec) : 500=3.65% cpu : usr=0.03%, sys=1.39%, ctx=1329, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145480: Wed Aug 12 16:49:41 2026 read: IOPS=4, BW=79.3KiB/s (81.2kB/s)(5744KiB/72471msec) clat (msec): min=5, max=274, avg=40.44, stdev=35.13 lat (msec): min=5, max=274, avg=40.44, stdev=35.13 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 88], 95.00th=[ 115], | 99.00th=[ 174], 99.50th=[ 190], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 27, max= 320, per=28.09%, avg=92.69, stdev=62.34, samples=121 iops : min= 1, max= 20, avg= 5.08, stdev= 4.00, samples=121 write: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6544KiB/72471msec); 0 zone resets clat (msec): min=39, max=464, avg=141.28, stdev=67.82 lat (msec): min=39, max=464, avg=141.28, stdev=67.82 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 27, max= 224, per=26.10%, avg=90.57, stdev=41.55, samples=141 iops : min= 1, max= 14, avg= 4.93, stdev= 2.71, samples=141 lat (msec) : 10=1.56%, 20=11.72%, 50=22.79%, 100=23.44%, 250=36.98% lat (msec) : 500=3.52% cpu : usr=0.03%, sys=1.42%, ctx=1294, 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=145481: Wed Aug 12 16:49:41 2026 read: IOPS=5, BW=88.8KiB/s (90.9kB/s)(6256KiB/70440msec) clat (msec): min=7, max=304, avg=40.46, stdev=40.16 lat (msec): min=7, max=304, avg=40.46, stdev=40.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 53], 90.00th=[ 83], 95.00th=[ 129], | 99.00th=[ 218], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 320, per=30.19%, avg=99.62, stdev=67.56, samples=124 iops : min= 1, max= 20, avg= 5.50, stdev= 4.30, samples=124 write: IOPS=5, BW=85.6KiB/s (87.7kB/s)(6032KiB/70440msec); 0 zone resets clat (msec): min=48, max=613, avg=144.00, stdev=66.54 lat (msec): min=48, max=613, avg=144.00, stdev=66.54 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 94], | 30.00th=[ 106], 40.00th=[ 118], 50.00th=[ 129], 60.00th=[ 142], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 241], 95.00th=[ 275], | 99.00th=[ 359], 99.50th=[ 409], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 27, max= 191, per=24.85%, avg=86.24, stdev=37.24, samples=137 iops : min= 1, max= 11, avg= 4.66, stdev= 2.47, samples=137 lat (msec) : 10=1.69%, 20=14.45%, 50=24.22%, 100=19.01%, 250=36.20% lat (msec) : 500=4.30%, 750=0.13% cpu : usr=0.05%, sys=1.44%, ctx=1410, 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=145482: Wed Aug 12 16:49:41 2026 read: IOPS=5, BW=83.9KiB/s (85.9kB/s)(6032KiB/71907msec) clat (msec): min=6, max=317, avg=40.21, stdev=40.70 lat (msec): min=6, max=317, avg=40.21, stdev=40.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 90], 95.00th=[ 124], | 99.00th=[ 209], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 283, per=29.03%, avg=95.80, stdev=56.76, samples=123 iops : min= 1, max= 17, avg= 5.27, stdev= 3.65, samples=123 write: IOPS=5, BW=87.0KiB/s (89.1kB/s)(6256KiB/71907msec); 0 zone resets clat (msec): min=34, max=434, avg=143.87, stdev=68.69 lat (msec): min=34, max=434, avg=143.87, stdev=68.69 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 117], 50.00th=[ 129], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 228], 95.00th=[ 292], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 192, per=25.49%, avg=88.45, stdev=38.95, samples=139 iops : min= 1, max= 12, avg= 4.79, stdev= 2.56, samples=139 lat (msec) : 10=2.21%, 20=14.19%, 50=22.66%, 100=20.31%, 250=36.98% lat (msec) : 500=3.65% cpu : usr=0.03%, sys=1.42%, ctx=1347, 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=331KiB/s (338kB/s), 79.3KiB/s-88.8KiB/s (81.2kB/s-90.9kB/s), io=23.4MiB (24.5MB), run=70440-72471msec WRITE: bw=348KiB/s (356kB/s), 85.6KiB/s-90.3KiB/s (87.7kB/s-92.5kB/s), io=24.6MiB (25.8MB), run=70440-72471msec 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=145506: Wed Aug 12 16:49:57 2026 read: IOPS=1, BW=1767KiB/s (1810kB/s)(7168KiB/4056msec) clat (msec): min=171, max=297, avg=235.84, stdev=41.18 lat (msec): min=171, max=297, avg=235.84, stdev=41.18 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 209], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1563, max= 4000, per=45.19%, avg=2281.60, stdev=976.79, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1262KiB/s (1293kB/s)(5120KiB/4056msec); 0 zone resets clat (msec): min=228, max=941, avg=428.57, stdev=293.70 lat (msec): min=230, max=942, avg=429.07, stdev=293.54 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1885, max= 3683, per=33.47%, avg=2366.25, stdev=878.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=41.67%, 1000=8.33% cpu : usr=0.05%, sys=11.42%, ctx=203, 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=145507: Wed Aug 12 16:49:57 2026 read: IOPS=0, BW=539KiB/s (552kB/s)(2048KiB/3800msec) clat (msec): min=115, max=225, avg=170.53, stdev=78.24 lat (msec): min=115, max=225, avg=170.54, stdev=78.24 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 115], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 226], 95.00th=[ 226], | 99.00th=[ 226], 99.50th=[ 226], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 1462, max= 1885, per=33.15%, avg=1673.50, stdev=299.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2695KiB/s (2759kB/s)(10.0MiB/3800msec); 0 zone resets clat (msec): min=122, max=522, avg=336.93, stdev=119.78 lat (msec): min=122, max=526, avg=337.87, stdev=120.74 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 186], | 30.00th=[ 262], 40.00th=[ 309], 50.00th=[ 363], 60.00th=[ 368], | 70.00th=[ 401], 80.00th=[ 409], 90.00th=[ 430], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1462, max= 4087, per=39.97%, avg=2825.33, stdev=1163.69, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=10.79%, ctx=132, 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=145508: Wed Aug 12 16:49:57 2026 read: IOPS=1, BW=1886KiB/s (1931kB/s)(6144KiB/3258msec) clat (usec): min=488, max=554735, avg=146978.68, stdev=224306.50 lat (usec): min=489, max=554736, avg=146979.91, stdev=224306.22 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 494], | 30.00th=[ 494], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[ 61604], | 70.00th=[263193], 80.00th=[263193], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1841, max= 3771, per=55.58%, avg=2806.00, stdev=1364.72, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1886KiB/s (1931kB/s)(6144KiB/3258msec); 0 zone resets clat (msec): min=157, max=1068, avg=354.22, stdev=352.11 lat (msec): min=157, max=1068, avg=354.31, stdev=352.12 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 230], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 1841, max= 3034, per=31.88%, avg=2253.33, stdev=676.44, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=9.18%, ctx=106, 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=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=145509: Wed Aug 12 16:49:57 2026 read: IOPS=1, BW=1285KiB/s (1316kB/s)(5120KiB/3984msec) clat (usec): min=564, max=692991, avg=142120.53, stdev=307956.01 lat (usec): min=565, max=692992, avg=142121.96, stdev=307955.90 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 4359], 40.00th=[ 4359], 50.00th=[ 5407], 60.00th=[ 5407], | 70.00th=[ 7242], 80.00th=[ 7242], 90.00th=[692061], 95.00th=[692061], | 99.00th=[692061], 99.50th=[692061], 99.90th=[692061], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 1841, max= 5941, per=77.06%, avg=3891.00, stdev=2899.14, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1799KiB/s (1842kB/s)(7168KiB/3984msec); 0 zone resets clat (msec): min=166, max=885, avg=425.48, stdev=294.39 lat (msec): min=166, max=885, avg=425.94, stdev=294.26 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 180], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 326], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 802], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1625, max= 3961, per=39.56%, avg=2796.50, stdev=1195.53, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 10=25.00%, 250=16.67%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.03%, sys=7.73%, ctx=110, 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=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=5049KiB/s (5170kB/s), 539KiB/s-1886KiB/s (552kB/s-1931kB/s), io=20.0MiB (20.0MB), run=3258-4056msec WRITE: bw=7069KiB/s (7239kB/s), 1262KiB/s-2695KiB/s (1293kB/s-2759kB/s), io=28.0MiB (29.4MB), run=3258-4056msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145501: Wed Aug 12 16:49:58 2026 read: IOPS=2, BW=2129KiB/s (2180kB/s)(7168KiB/3367msec) clat (msec): min=83, max=386, avg=172.34, stdev=103.02 lat (msec): min=83, max=386, avg=172.35, stdev=103.02 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 114], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 126], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 213], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 1620, max= 4079, per=70.86%, avg=2942.25, stdev=1296.38, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1521KiB/s (1557kB/s)(5120KiB/3367msec); 0 zone resets clat (msec): min=177, max=858, avg=394.04, stdev=289.19 lat (msec): min=180, max=858, avg=394.58, stdev=288.78 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 2007, max= 2039, per=34.84%, avg=2025.00, stdev=16.49, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=66.67%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.09%, ctx=56, 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=145503: Wed Aug 12 16:49:58 2026 read: IOPS=0, BW=427KiB/s (437kB/s)(2048KiB/4798msec) clat (msec): min=68, max=123, avg=95.79, stdev=38.71 lat (msec): min=68, max=123, avg=95.79, stdev=38.71 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 69], 40.00th=[ 69], 50.00th=[ 69], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 124], 95.00th=[ 124], | 99.00th=[ 124], 99.50th=[ 124], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 1765, max= 2035, per=45.76%, avg=1900.00, stdev=190.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2134KiB/s (2185kB/s)(10.0MiB/4798msec); 0 zone resets clat (msec): min=180, max=1564, avg=437.67, stdev=410.35 lat (msec): min=180, max=1564, avg=437.77, stdev=410.35 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 190], | 30.00th=[ 239], 40.00th=[ 241], 50.00th=[ 266], 60.00th=[ 363], | 70.00th=[ 414], 80.00th=[ 439], 90.00th=[ 489], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 2007, max= 6144, per=52.57%, avg=3056.00, stdev=1725.00, samples=6 iops : min= 1, max= 6, avg= 2.33, stdev= 2.16, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.02%, sys=4.38%, ctx=91, 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=145504: Wed Aug 12 16:49:58 2026 read: IOPS=1, BW=1246KiB/s (1276kB/s)(6144KiB/4932msec) clat (msec): min=86, max=1277, avg=485.16, stdev=450.69 lat (msec): min=86, max=1277, avg=485.16, stdev=450.69 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 405], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 2007, max= 4096, per=61.21%, avg=2541.50, stdev=1036.49, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1246KiB/s (1276kB/s)(6144KiB/4932msec); 0 zone resets clat (msec): min=160, max=793, avg=325.13, stdev=238.39 lat (msec): min=160, max=794, avg=325.24, stdev=238.38 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 296], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 2015, max= 2929, per=38.84%, avg=2257.75, stdev=447.72, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 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=2.41%, 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=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=145505: Wed Aug 12 16:49:58 2026 read: IOPS=1, BW=1055KiB/s (1081kB/s)(5120KiB/4852msec) clat (msec): min=85, max=842, avg=347.35, stdev=290.87 lat (msec): min=85, max=842, avg=347.35, stdev=290.87 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 2027, max= 4071, per=65.40%, avg=2715.33, stdev=1174.09, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1477KiB/s (1513kB/s)(7168KiB/4852msec); 0 zone resets clat (msec): min=185, max=905, avg=419.44, stdev=281.91 lat (msec): min=185, max=906, avg=419.61, stdev=281.84 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 222], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 271], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 735], 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= 1921, max= 4096, per=41.56%, avg=2415.60, stdev=940.43, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.03%, ctx=77, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4152KiB/s (4252kB/s), 427KiB/s-2129KiB/s (437kB/s-2180kB/s), io=20.0MiB (20.0MB), run=3367-4932msec WRITE: bw=5813KiB/s (5953kB/s), 1246KiB/s-2134KiB/s (1276kB/s-2185kB/s), io=28.0MiB (29.4MB), run=3367-4932msec 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=145516: Wed Aug 12 16:50:13 2026 read: IOPS=1, BW=4239KiB/s (4340kB/s)(12.0MiB/2899msec) clat (msec): min=584, max=1416, avg=948.51, stdev=425.41 lat (msec): min=584, max=1416, avg=948.52, stdev=425.41 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 1418], 80.00th=[ 1418], 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= 6420, max= 7801, per=100.00%, avg=7110.50, stdev=976.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.49%, ctx=55, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145517: Wed Aug 12 16:50:13 2026 read: IOPS=0, BW=1127KiB/s (1154kB/s)(4096KiB/3636msec) clat (nsec): min=936877k, max=936877k, avg=936877156.00, stdev= 0.00 lat (nsec): min=936879k, max=936879k, avg=936879363.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2253KiB/s (2307kB/s)(8192KiB/3636msec); 0 zone resets clat (msec): min=1222, max=1342, avg=1282.11, stdev=84.74 lat (msec): min=1223, max=1342, avg=1283.14, stdev=84.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8192, max= 8192, per=90.90%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.09%, ctx=35, 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=145518: Wed Aug 12 16:50:13 2026 write: IOPS=2, BW=8950KiB/s (9165kB/s)(12.0MiB/1373msec); 0 zone resets clat (msec): min=355, max=580, avg=436.46, stdev=124.98 lat (msec): min=355, max=581, avg=437.31, stdev=125.59 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 6330, max= 7892, per=78.91%, avg=7111.00, stdev=1104.50, 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=0.15%, sys=6.27%, ctx=53, 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=145519: Wed Aug 12 16:50:13 2026 write: IOPS=1, BW=5146KiB/s (5269kB/s)(12.0MiB/2388msec); 0 zone resets clat (msec): min=357, max=1039, avg=748.76, stdev=351.93 lat (msec): min=357, max=1039, avg=749.13, stdev=351.88 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 5657, max= 7801, per=74.67%, avg=6729.00, stdev=1516.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.17%, sys=5.32%, ctx=56, 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=4506KiB/s (4614kB/s), 1127KiB/s-4239KiB/s (1154kB/s-4340kB/s), io=16.0MiB (16.8MB), run=2899-3636msec WRITE: bw=9012KiB/s (9228kB/s), 2253KiB/s-8950KiB/s (2307kB/s-9165kB/s), io=32.0MiB (33.6MB), run=1373-3636msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145521: Wed Aug 12 16:50:14 2026 read: IOPS=1, BW=5256KiB/s (5382kB/s)(12.0MiB/2338msec) clat (msec): min=676, max=983, avg=778.89, stdev=177.25 lat (msec): min=676, max=983, avg=778.90, stdev=177.25 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 5902, max= 7713, per=100.00%, avg=6807.50, stdev=1280.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=14.21%, ctx=201, majf=0, minf=7 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=145522: Wed Aug 12 16:50:14 2026 read: IOPS=0, BW=1186KiB/s (1214kB/s)(4096KiB/3454msec) clat (nsec): min=547193k, max=547193k, avg=547192740.00, stdev= 0.00 lat (nsec): min=547195k, max=547195k, avg=547195434.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7275, max= 7275, per=100.00%, avg=7275.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2372KiB/s (2429kB/s)(8192KiB/3454msec); 0 zone resets clat (msec): min=287, max=2615, avg=1451.83, stdev=1646.33 lat (msec): min=288, max=2616, avg=1452.67, stdev=1645.81 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 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] lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.66%, ctx=106, 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=145523: Wed Aug 12 16:50:14 2026 write: IOPS=1, BW=4695KiB/s (4808kB/s)(12.0MiB/2617msec); 0 zone resets clat (msec): min=862, max=879, avg=870.52, stdev= 8.60 lat (msec): min=863, max=880, avg=871.35, stdev= 8.61 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 877], 80.00th=[ 877], 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= 8015, max= 8094, per=84.91%, avg=8054.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.11%, sys=8.18%, ctx=74, majf=0, minf=7 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=145524: Wed Aug 12 16:50:14 2026 write: IOPS=1, BW=4506KiB/s (4614kB/s)(12.0MiB/2727msec); 0 zone resets clat (msec): min=363, max=1333, avg=906.02, stdev=495.38 lat (msec): min=363, max=1334, avg=906.40, stdev=495.40 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8094, max= 8094, per=85.33%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.15%, 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 Run status group 0 (all jobs): READ: bw=4743KiB/s (4857kB/s), 1186KiB/s-5256KiB/s (1214kB/s-5382kB/s), io=16.0MiB (16.8MB), run=2338-3454msec WRITE: bw=9487KiB/s (9715kB/s), 2372KiB/s-4695KiB/s (2429kB/s-4808kB/s), io=32.0MiB (33.6MB), run=2617-3454msec