== sanity test 398b: DIO and buffer IO race ============== 21:45:11 (1789782311) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.72588 s, 7.5 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=145726: Fri Sep 18 21:47:43 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5992KiB/130840msec) clat (usec): min=30, max=1164.2k, avg=42376.93, stdev=42444.62 lat (usec): min=31, max=1164.2k, avg=42379.68, stdev=42443.75 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 2966], | 20.00th=[ 19530], 30.00th=[ 24511], 40.00th=[ 29492], | 50.00th=[ 34866], 60.00th=[ 41681], 70.00th=[ 50594], | 80.00th=[ 62653], 90.00th=[ 83362], 95.00th=[ 96994], | 99.00th=[ 143655], 99.50th=[ 179307], 99.90th=[ 263193], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 112, per=25.22%, avg=45.65, stdev=19.72, samples=256 iops : min= 1, max= 28, avg=10.78, stdev= 4.97, samples=256 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6296KiB/130840msec); 0 zone resets clat (usec): min=987, max=622889, avg=42481.83, stdev=48165.14 lat (usec): min=988, max=622891, avg=42484.89, stdev=48164.31 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1270], 10.00th=[ 1631], 20.00th=[ 3818], | 30.00th=[ 7701], 40.00th=[ 18744], 50.00th=[ 30278], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[101188], 95.00th=[125305], | 99.00th=[196084], 99.50th=[225444], 99.90th=[522191], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 103, per=25.57%, avg=48.33, stdev=19.58, samples=254 iops : min= 1, max= 25, avg=11.46, stdev= 4.92, samples=254 lat (usec) : 50=0.65%, 100=3.61%, 250=0.46%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=6.28%, 4=4.52%, 10=6.09%, 20=9.24%, 50=36.82% lat (msec) : 100=24.67%, 250=7.19%, 500=0.13%, 750=0.07%, 2000=0.03% cpu : usr=0.07%, sys=5.09%, ctx=6389, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145727: Fri Sep 18 21:47:43 2026 read: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5940KiB/132580msec) clat (usec): min=27, max=467199, avg=42260.54, stdev=35360.43 lat (usec): min=28, max=467201, avg=42266.07, stdev=35358.29 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 91], 20.00th=[ 17433], | 30.00th=[ 23725], 40.00th=[ 28967], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 52691], 80.00th=[ 64226], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[162530], 99.50th=[204473], 99.90th=[387974], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 5, max= 111, per=24.80%, avg=44.88, stdev=20.16, samples=257 iops : min= 1, max= 27, avg=10.59, stdev= 5.07, samples=257 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6348KiB/132580msec); 0 zone resets clat (usec): min=966, max=1140.7k, avg=43702.13, stdev=52181.74 lat (usec): min=967, max=1140.8k, avg=43703.67, stdev=52181.69 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1696], | 20.00th=[ 4359], 30.00th=[ 9241], 40.00th=[ 20579], | 50.00th=[ 32375], 60.00th=[ 42730], 70.00th=[ 55837], | 80.00th=[ 73925], 90.00th=[ 101188], 95.00th=[ 130548], | 99.00th=[ 191890], 99.50th=[ 229639], 99.90th=[ 408945], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 149, per=25.09%, avg=47.41, stdev=20.61, samples=259 iops : min= 1, max= 37, avg=11.23, stdev= 5.18, samples=259 lat (usec) : 50=0.55%, 100=4.46%, 250=0.68%, 500=0.07%, 1000=0.07% lat (msec) : 2=6.22%, 4=3.71%, 10=6.51%, 20=9.24%, 50=34.80% lat (msec) : 100=25.65%, 250=7.81%, 500=0.20%, 2000=0.03% cpu : usr=0.07%, sys=5.14%, ctx=6508, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145729: Fri Sep 18 21:47:43 2026 read: IOPS=11, BW=45.9KiB/s (46.0kB/s)(6028KiB/131374msec) clat (usec): min=31, max=263187, avg=41021.04, stdev=31942.52 lat (usec): min=32, max=263188, avg=41022.29, stdev=31942.51 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 73], 20.00th=[ 18482], | 30.00th=[ 23725], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[147850], 99.50th=[181404], 99.90th=[227541], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 117, per=25.65%, avg=46.42, stdev=20.49, samples=253 iops : min= 1, max= 29, avg=10.98, stdev= 5.17, samples=253 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(6260KiB/131374msec); 0 zone resets clat (usec): min=931, max=1472.1k, avg=44163.11, stdev=60844.24 lat (usec): min=932, max=1472.1k, avg=44170.76, stdev=60845.81 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1631], | 20.00th=[ 4424], 30.00th=[ 9372], 40.00th=[ 21627], | 50.00th=[ 31851], 60.00th=[ 43254], 70.00th=[ 56361], | 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[ 124257], | 99.00th=[ 219153], 99.50th=[ 235930], 99.90th=[ 834667], | 99.95th=[1468007], 99.99th=[1468007] bw ( KiB/s): min= 7, max= 103, per=25.21%, avg=47.65, stdev=19.09, samples=256 iops : min= 1, max= 25, avg=11.28, stdev= 4.81, samples=256 lat (usec) : 50=0.75%, 100=5.01%, 250=0.29%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=5.92%, 4=3.42%, 10=6.67%, 20=8.50%, 50=36.07% lat (msec) : 100=25.59%, 250=7.23%, 500=0.13%, 750=0.03%, 1000=0.03% lat (msec) : 2000=0.03% cpu : usr=0.07%, sys=5.20%, ctx=6487, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145730: Fri Sep 18 21:47:43 2026 read: IOPS=11, BW=46.0KiB/s (47.1kB/s)(6052KiB/131557msec) clat (usec): min=30, max=360273, avg=41217.09, stdev=32057.48 lat (usec): min=30, max=360274, avg=41222.15, stdev=32054.13 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 102], 20.00th=[ 18744], | 30.00th=[ 24773], 40.00th=[ 29754], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 61604], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[143655], 99.50th=[175113], 99.90th=[270533], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 111, per=25.75%, avg=46.60, stdev=19.26, samples=253 iops : min= 1, max= 27, avg=11.01, stdev= 4.86, samples=253 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(6236KiB/131557msec); 0 zone resets clat (usec): min=983, max=1285.1k, avg=44026.00, stdev=55057.73 lat (usec): min=985, max=1285.1k, avg=44027.72, stdev=55057.85 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1680], | 20.00th=[ 3916], 30.00th=[ 8455], 40.00th=[ 19268], | 50.00th=[ 31065], 60.00th=[ 43254], 70.00th=[ 57934], | 80.00th=[ 76022], 90.00th=[ 106431], 95.00th=[ 129500], | 99.00th=[ 179307], 99.50th=[ 202376], 99.90th=[ 446694], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 7, max= 111, per=24.95%, avg=47.16, stdev=18.67, samples=257 iops : min= 1, max= 27, avg=11.16, stdev= 4.70, samples=257 lat (usec) : 50=1.04%, 100=3.81%, 250=0.49%, 500=0.10%, 1000=0.13% lat (msec) : 2=6.12%, 4=4.20%, 10=6.80%, 20=8.37%, 50=36.78% lat (msec) : 100=23.99%, 250=7.94%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=5.20%, ctx=6493, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=181KiB/s (185kB/s), 44.8KiB/s-46.0KiB/s (45.9kB/s-47.1kB/s), io=23.4MiB (24.6MB), run=130840-132580msec WRITE: bw=190KiB/s (194kB/s), 47.4KiB/s-48.1KiB/s (48.5kB/s-49.3kB/s), io=24.6MiB (25.7MB), run=130840-132580msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145728: Fri Sep 18 21:50:16 2026 read: IOPS=5, BW=21.0KiB/s (21.5kB/s)(5992KiB/284848msec) clat (msec): min=5, max=1228, avg=39.09, stdev=45.44 lat (msec): min=5, max=1228, avg=39.09, stdev=45.43 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 80], 95.00th=[ 105], | 99.00th=[ 169], 99.50th=[ 188], 99.90th=[ 435], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 87, per=29.32%, avg=24.33, stdev=16.44, samples=476 iops : min= 1, max= 21, avg= 5.46, stdev= 4.14, samples=476 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6296KiB/284848msec); 0 zone resets clat (msec): min=26, max=728, avg=143.53, stdev=71.84 lat (msec): min=26, max=728, avg=143.53, stdev=71.84 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 197], 90.00th=[ 243], 95.00th=[ 279], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 535], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 48, per=25.12%, avg=21.86, stdev=10.46, samples=554 iops : min= 1, max= 12, avg= 4.84, stdev= 2.66, samples=554 lat (msec) : 10=2.60%, 20=14.45%, 50=21.03%, 100=24.54%, 250=32.91% lat (msec) : 500=4.36%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.19%, ctx=5458, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145731: Fri Sep 18 21:50:16 2026 read: IOPS=5, BW=20.8KiB/s (21.3kB/s)(5940KiB/285963msec) clat (msec): min=5, max=1293, avg=38.58, stdev=48.11 lat (msec): min=5, max=1293, avg=38.58, stdev=48.11 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 53], 90.00th=[ 79], 95.00th=[ 106], | 99.00th=[ 184], 99.50th=[ 218], 99.90th=[ 363], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 95, per=29.24%, avg=24.27, stdev=17.13, samples=472 iops : min= 1, max= 23, avg= 5.45, stdev= 4.31, samples=472 write: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6348KiB/285963msec); 0 zone resets clat (msec): min=33, max=947, avg=143.84, stdev=72.58 lat (msec): min=33, max=947, avg=143.85, stdev=72.58 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 241], 95.00th=[ 275], | 99.00th=[ 376], 99.50th=[ 414], 99.90th=[ 625], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 48, per=25.23%, avg=21.95, stdev=10.22, samples=556 iops : min= 1, max= 12, avg= 4.86, stdev= 2.61, samples=556 lat (msec) : 10=2.64%, 20=14.49%, 50=21.29%, 100=23.24%, 250=33.95% lat (msec) : 500=4.30%, 750=0.03%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5217, 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=145732: Fri Sep 18 21:50:16 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6028KiB/284421msec) clat (msec): min=6, max=858, avg=40.97, stdev=43.29 lat (msec): min=6, max=858, avg=40.98, stdev=43.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 60], 90.00th=[ 86], 95.00th=[ 113], | 99.00th=[ 176], 99.50th=[ 199], 99.90th=[ 498], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 87, per=28.42%, avg=23.59, stdev=16.15, samples=493 iops : min= 1, max= 21, avg= 5.28, stdev= 4.06, samples=493 write: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6260KiB/284421msec); 0 zone resets clat (msec): min=39, max=1440, avg=142.04, stdev=77.82 lat (msec): min=39, max=1440, avg=142.05, stdev=77.82 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 194], 90.00th=[ 236], 95.00th=[ 279], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 592], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 62, per=25.01%, avg=21.76, stdev=10.85, samples=553 iops : min= 1, max= 15, avg= 4.81, stdev= 2.76, samples=553 lat (msec) : 10=2.57%, 20=13.74%, 50=21.13%, 100=25.29%, 250=33.11% lat (msec) : 500=4.04%, 750=0.07%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5429, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145733: Fri Sep 18 21:50:16 2026 read: IOPS=5, BW=21.3KiB/s (21.8kB/s)(6052KiB/284615msec) clat (msec): min=5, max=283, avg=38.80, stdev=35.38 lat (msec): min=5, max=283, avg=38.81, stdev=35.39 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 115], | 99.00th=[ 171], 99.50th=[ 194], 99.90th=[ 275], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 111, per=29.46%, avg=24.45, stdev=17.47, samples=478 iops : min= 1, max= 27, avg= 5.49, stdev= 4.38, samples=478 write: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6236KiB/284615msec); 0 zone resets clat (msec): min=39, max=1354, avg=144.64, stdev=79.24 lat (msec): min=39, max=1354, avg=144.64, stdev=79.24 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 194], 90.00th=[ 239], 95.00th=[ 279], | 99.00th=[ 388], 99.50th=[ 468], 99.90th=[ 944], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 56, per=25.01%, avg=21.76, stdev=10.20, samples=551 iops : min= 1, max= 14, avg= 4.81, stdev= 2.60, samples=551 lat (msec) : 10=2.93%, 20=14.68%, 50=20.31%, 100=23.76%, 250=33.98% lat (msec) : 500=4.17%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5421, 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=83.0KiB/s (85.0kB/s), 20.8KiB/s-21.3KiB/s (21.3kB/s-21.8kB/s), io=23.4MiB (24.6MB), run=284421-285963msec WRITE: bw=87.9KiB/s (90.0kB/s), 21.9KiB/s-22.2KiB/s (22.4kB/s-22.7kB/s), io=24.6MiB (25.7MB), run=284421-285963msec 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=145802: Fri Sep 18 21:50:56 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(5920KiB/31471msec) clat (usec): min=32, max=219710, avg=44284.71, stdev=35887.93 lat (usec): min=32, max=219712, avg=44285.98, stdev=35887.92 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 14615], | 30.00th=[ 25560], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[156238], 99.50th=[214959], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 475, per=24.73%, avg=188.18, stdev=90.62, samples=62 iops : min= 1, max= 29, avg=11.00, stdev= 5.79, samples=62 write: IOPS=12, BW=202KiB/s (207kB/s)(6368KiB/31471msec); 0 zone resets clat (usec): min=1364, max=260437, avg=37261.88, stdev=42097.95 lat (usec): min=1366, max=260439, avg=37263.99, stdev=42097.89 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1647], 10.00th=[ 2409], 20.00th=[ 5276], | 30.00th=[ 8094], 40.00th=[ 12518], 50.00th=[ 21627], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 65274], 90.00th=[ 91751], 95.00th=[114820], | 99.00th=[217056], 99.50th=[244319], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 31, max= 476, per=25.66%, avg=205.28, stdev=86.67, samples=61 iops : min= 1, max= 29, avg=12.08, stdev= 5.51, samples=61 lat (usec) : 50=0.52%, 100=7.81%, 250=0.39%, 1000=0.13% lat (msec) : 2=3.91%, 4=4.43%, 10=9.38%, 20=8.98%, 50=33.59% lat (msec) : 100=23.18%, 250=7.55%, 500=0.13% cpu : usr=0.04%, sys=5.44%, ctx=1505, 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=145803: Fri Sep 18 21:50:56 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(5744KiB/30784msec) clat (usec): min=40, max=329809, avg=44780.51, stdev=39484.36 lat (usec): min=41, max=329810, avg=44781.71, stdev=39484.36 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 15270], | 30.00th=[ 25822], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[170918], 99.50th=[278922], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 414, per=24.54%, avg=186.73, stdev=92.51, samples=60 iops : min= 1, max= 25, avg=10.88, stdev= 5.84, samples=60 write: IOPS=13, BW=213KiB/s (218kB/s)(6544KiB/30784msec); 0 zone resets clat (usec): min=1360, max=395902, avg=35349.67, stdev=42720.07 lat (usec): min=1362, max=395904, avg=35351.62, stdev=42720.05 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1778], 10.00th=[ 3064], 20.00th=[ 5473], | 30.00th=[ 8455], 40.00th=[ 12649], 50.00th=[ 18744], 60.00th=[ 31065], | 70.00th=[ 41681], 80.00th=[ 58459], 90.00th=[ 84411], 95.00th=[119014], | 99.00th=[202376], 99.50th=[214959], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 63, max= 414, per=26.70%, avg=213.58, stdev=92.38, samples=60 iops : min= 3, max= 25, avg=12.57, stdev= 5.83, samples=60 lat (usec) : 50=0.91%, 100=5.73%, 250=0.65%, 500=0.65%, 750=0.13% lat (msec) : 2=3.26%, 4=4.04%, 10=11.20%, 20=11.46%, 50=32.55% lat (msec) : 100=23.18%, 250=5.73%, 500=0.52% cpu : usr=0.06%, sys=5.90%, ctx=1511, 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=145804: Fri Sep 18 21:50:56 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6256KiB/30901msec) clat (usec): min=37, max=330131, avg=44375.13, stdev=37877.49 lat (usec): min=38, max=330132, avg=44376.47, stdev=37877.46 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 17957], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[101188], | 99.00th=[170918], 99.50th=[274727], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 58, max= 414, per=26.77%, avg=203.73, stdev=75.75, samples=60 iops : min= 3, max= 25, avg=11.95, stdev= 4.75, samples=60 write: IOPS=12, BW=195KiB/s (200kB/s)(6032KiB/30901msec); 0 zone resets clat (usec): min=1421, max=208730, avg=35218.26, stdev=37800.98 lat (usec): min=1425, max=208732, avg=35220.32, stdev=37801.00 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1680], 10.00th=[ 2540], 20.00th=[ 5800], | 30.00th=[ 8848], 40.00th=[ 12911], 50.00th=[ 20055], 60.00th=[ 32375], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[112722], | 99.00th=[175113], 99.50th=[200279], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 31, max= 379, per=24.52%, avg=196.19, stdev=82.74, samples=59 iops : min= 1, max= 23, avg=11.49, stdev= 5.27, samples=59 lat (usec) : 50=0.52%, 100=7.29%, 250=0.91%, 500=0.13% lat (msec) : 2=3.78%, 4=3.52%, 10=9.64%, 20=9.51%, 50=34.11% lat (msec) : 100=24.87%, 250=5.47%, 500=0.26% cpu : usr=0.11%, sys=5.52%, ctx=1517, 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=145805: Fri Sep 18 21:50:56 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6032KiB/31051msec) clat (usec): min=36, max=270120, avg=45241.40, stdev=42067.76 lat (usec): min=37, max=270122, avg=45242.64, stdev=42067.77 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 898], | 30.00th=[ 24249], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[126354], | 99.00th=[210764], 99.50th=[261096], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 478, per=25.78%, avg=196.18, stdev=85.14, samples=60 iops : min= 1, max= 29, avg=11.48, stdev= 5.38, samples=60 write: IOPS=12, BW=201KiB/s (206kB/s)(6256KiB/31051msec); 0 zone resets clat (usec): min=1362, max=231405, avg=35618.95, stdev=39302.03 lat (usec): min=1364, max=231406, avg=35621.05, stdev=39302.06 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1778], 10.00th=[ 2409], 20.00th=[ 5473], | 30.00th=[ 8586], 40.00th=[ 12518], 50.00th=[ 18744], 60.00th=[ 32637], | 70.00th=[ 44303], 80.00th=[ 64750], 90.00th=[ 85459], 95.00th=[114820], | 99.00th=[173016], 99.50th=[217056], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 31, max= 411, per=25.27%, avg=202.15, stdev=87.72, samples=61 iops : min= 1, max= 25, avg=11.87, stdev= 5.55, samples=61 lat (usec) : 50=1.30%, 100=7.55%, 250=0.39%, 500=0.52%, 1000=0.13% lat (msec) : 2=4.43%, 4=3.26%, 10=10.68%, 20=9.77%, 50=31.12% lat (msec) : 100=23.05%, 250=7.55%, 500=0.26% cpu : usr=0.10%, sys=5.55%, ctx=1482, 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=761KiB/s (779kB/s), 187KiB/s-202KiB/s (191kB/s-207kB/s), io=23.4MiB (24.5MB), run=30784-31471msec WRITE: bw=801KiB/s (820kB/s), 195KiB/s-213KiB/s (200kB/s-218kB/s), io=24.6MiB (25.8MB), run=30784-31471msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145806: Fri Sep 18 21:51:42 2026 read: IOPS=4, BW=78.0KiB/s (79.9kB/s)(5920KiB/75851msec) clat (msec): min=7, max=486, avg=42.84, stdev=47.65 lat (msec): min=7, max=486, avg=42.84, stdev=47.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 36], | 70.00th=[ 42], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 117], | 99.00th=[ 275], 99.50th=[ 334], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 288, per=27.99%, avg=86.77, stdev=57.84, samples=134 iops : min= 1, max= 18, avg= 4.69, stdev= 3.66, samples=134 write: IOPS=5, BW=83.0KiB/s (85.0kB/s)(6368KiB/75851msec); 0 zone resets clat (msec): min=40, max=591, avg=150.04, stdev=78.46 lat (msec): min=40, max=591, avg=150.04, stdev=78.46 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 115], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 203], 90.00th=[ 255], 95.00th=[ 305], | 99.00th=[ 451], 99.50th=[ 464], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 30, max= 221, per=26.47%, avg=86.28, stdev=40.06, samples=145 iops : min= 1, max= 13, avg= 4.65, stdev= 2.58, samples=145 lat (msec) : 10=1.30%, 20=10.94%, 50=26.95%, 100=21.74%, 250=32.94% lat (msec) : 500=5.99%, 750=0.13% cpu : usr=0.02%, sys=1.20%, ctx=1382, 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=145807: Fri Sep 18 21:51:42 2026 read: IOPS=4, BW=74.5KiB/s (76.3kB/s)(5744KiB/77130msec) clat (msec): min=5, max=247, avg=39.92, stdev=34.45 lat (msec): min=5, max=247, avg=39.92, stdev=34.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 53], 90.00th=[ 78], 95.00th=[ 110], | 99.00th=[ 215], 99.50th=[ 247], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 30, max= 318, per=29.58%, avg=91.70, stdev=59.60, samples=122 iops : min= 1, max= 19, avg= 5.01, stdev= 3.73, samples=122 write: IOPS=5, BW=84.8KiB/s (86.9kB/s)(6544KiB/77130msec); 0 zone resets clat (msec): min=46, max=702, avg=152.96, stdev=87.99 lat (msec): min=46, max=702, avg=152.97, stdev=87.99 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 101], 40.00th=[ 114], 50.00th=[ 127], 60.00th=[ 144], | 70.00th=[ 169], 80.00th=[ 201], 90.00th=[ 259], 95.00th=[ 313], | 99.00th=[ 493], 99.50th=[ 609], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 30, max= 223, per=26.29%, avg=85.69, stdev=40.65, samples=149 iops : min= 1, max= 13, avg= 4.62, stdev= 2.62, samples=149 lat (msec) : 10=2.08%, 20=11.20%, 50=23.57%, 100=23.31%, 250=34.11% lat (msec) : 500=5.21%, 750=0.52% cpu : usr=0.03%, sys=1.20%, ctx=1443, 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=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=145808: Fri Sep 18 21:51:42 2026 read: IOPS=5, BW=84.8KiB/s (86.8kB/s)(6256KiB/73795msec) clat (msec): min=7, max=475, avg=42.79, stdev=42.31 lat (msec): min=7, max=475, avg=42.80, stdev=42.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 45], 80.00th=[ 54], 90.00th=[ 82], 95.00th=[ 110], | 99.00th=[ 224], 99.50th=[ 253], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 30, max= 384, per=30.67%, avg=95.06, stdev=66.80, samples=130 iops : min= 1, max= 24, avg= 5.22, stdev= 4.25, samples=130 write: IOPS=5, BW=81.7KiB/s (83.7kB/s)(6032KiB/73795msec); 0 zone resets clat (msec): min=45, max=527, avg=150.65, stdev=81.11 lat (msec): min=45, max=527, avg=150.66, stdev=81.11 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 101], 40.00th=[ 112], 50.00th=[ 129], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 194], 90.00th=[ 262], 95.00th=[ 330], | 99.00th=[ 443], 99.50th=[ 518], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 30, max= 159, per=25.95%, avg=84.59, stdev=37.91, samples=140 iops : min= 1, max= 9, avg= 4.54, stdev= 2.42, samples=140 lat (msec) : 10=1.30%, 20=12.11%, 50=25.13%, 100=23.44%, 250=31.90% lat (msec) : 500=5.73%, 750=0.39% cpu : usr=0.03%, sys=1.22%, ctx=1408, 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=145809: Fri Sep 18 21:51:42 2026 read: IOPS=4, BW=79.9KiB/s (81.8kB/s)(6032KiB/75498msec) clat (msec): min=6, max=506, avg=46.98, stdev=49.22 lat (msec): min=6, max=506, avg=46.98, stdev=49.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 60], 90.00th=[ 92], 95.00th=[ 144], | 99.00th=[ 239], 99.50th=[ 313], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 31, max= 287, per=29.03%, avg=90.01, stdev=58.21, samples=131 iops : min= 1, max= 17, avg= 4.91, stdev= 3.65, samples=131 write: IOPS=5, BW=82.9KiB/s (84.9kB/s)(6256KiB/75498msec); 0 zone resets clat (msec): min=44, max=402, avg=147.53, stdev=67.37 lat (msec): min=44, max=402, avg=147.54, stdev=67.37 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 69], 10.00th=[ 79], 20.00th=[ 93], | 30.00th=[ 105], 40.00th=[ 118], 50.00th=[ 132], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 247], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 30, max= 191, per=25.82%, avg=84.18, stdev=40.00, samples=146 iops : min= 1, max= 11, avg= 4.52, stdev= 2.58, samples=146 lat (msec) : 10=1.95%, 20=10.81%, 50=22.53%, 100=22.53%, 250=37.24% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.04%, sys=1.22%, ctx=1388, 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=311KiB/s (318kB/s), 74.5KiB/s-84.8KiB/s (76.3kB/s-86.8kB/s), io=23.4MiB (24.5MB), run=73795-77130msec WRITE: bw=327KiB/s (335kB/s), 81.7KiB/s-84.8KiB/s (83.7kB/s-86.9kB/s), io=24.6MiB (25.8MB), run=73795-77130msec 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=145829: Fri Sep 18 21:51:56 2026 read: IOPS=2, BW=2620KiB/s (2683kB/s)(7168KiB/2736msec) clat (msec): min=95, max=575, avg=176.63, stdev=176.60 lat (msec): min=95, max=575, avg=176.63, stdev=176.60 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 96], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 106], 60.00th=[ 117], | 70.00th=[ 117], 80.00th=[ 144], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2048, max= 5665, per=71.11%, avg=3856.50, stdev=2557.61, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1871KiB/s (1916kB/s)(5120KiB/2736msec); 0 zone resets clat (msec): min=105, max=355, avg=275.09, stdev=98.14 lat (msec): min=105, max=355, avg=275.19, stdev=98.11 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1416, max= 4031, per=32.90%, avg=2498.33, stdev=1364.43, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=5.89%, ctx=88, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145830: Fri Sep 18 21:51:56 2026 read: IOPS=0, BW=678KiB/s (695kB/s)(2048KiB/3019msec) clat (msec): min=129, max=256, avg=192.98, stdev=89.75 lat (msec): min=129, max=256, avg=192.98, stdev=89.75 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 130], 50.00th=[ 130], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 1469, max= 2015, per=32.12%, avg=1742.00, stdev=386.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3392KiB/s (3473kB/s)(10.0MiB/3019msec); 0 zone resets clat (msec): min=132, max=618, avg=251.25, stdev=153.62 lat (msec): min=132, max=618, avg=251.36, stdev=153.62 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 169], 40.00th=[ 171], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 224], 80.00th=[ 262], 90.00th=[ 422], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2003, max= 6144, per=49.74%, avg=3777.00, stdev=1780.84, samples=4 iops : min= 1, max= 6, avg= 3.00, stdev= 2.16, samples=4 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=5.47%, ctx=71, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145831: Fri Sep 18 21:51:56 2026 read: IOPS=1, BW=1729KiB/s (1770kB/s)(6144KiB/3554msec) clat (msec): min=120, max=544, avg=227.53, stdev=160.88 lat (msec): min=120, max=544, avg=227.53, stdev=160.88 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2003, max= 4096, per=62.22%, avg=3374.00, stdev=1187.88, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1729KiB/s (1770kB/s)(6144KiB/3554msec); 0 zone resets clat (msec): min=179, max=621, avg=359.31, stdev=199.10 lat (msec): min=179, max=621, avg=359.65, stdev=199.47 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 292], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2011, max= 4296, per=36.53%, avg=2774.00, stdev=1318.09, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=58.33%, 500=16.67%, 750=25.00% cpu : usr=0.00%, sys=5.80%, ctx=84, 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=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=145832: Fri Sep 18 21:51:56 2026 read: IOPS=1, BW=1356KiB/s (1388kB/s)(5120KiB/3776msec) clat (msec): min=102, max=666, avg=378.57, stdev=203.03 lat (msec): min=102, max=666, avg=378.57, stdev=203.03 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2003, max= 4031, per=49.45%, avg=2681.67, stdev=1168.56, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1898KiB/s (1944kB/s)(7168KiB/3776msec); 0 zone resets clat (msec): min=124, max=589, avg=253.33, stdev=155.56 lat (msec): min=124, max=589, avg=253.42, stdev=155.57 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 186], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 288], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2048, max= 4278, per=40.72%, avg=3091.50, stdev=1210.57, samples=4 iops : min= 2, max= 4, avg= 2.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=16.67% cpu : usr=0.03%, sys=4.87%, ctx=70, 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=5424KiB/s (5554kB/s), 678KiB/s-2620KiB/s (695kB/s-2683kB/s), io=20.0MiB (20.0MB), run=2736-3776msec WRITE: bw=7593KiB/s (7775kB/s), 1729KiB/s-3392KiB/s (1770kB/s-3473kB/s), io=28.0MiB (29.4MB), run=2736-3776msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145834: Fri Sep 18 21:51:56 2026 read: IOPS=2, BW=2869KiB/s (2938kB/s)(7168KiB/2498msec) clat (usec): min=880, max=335790, avg=151014.07, stdev=108508.31 lat (usec): min=881, max=335792, avg=151015.48, stdev=108508.30 clat percentiles (usec): | 1.00th=[ 881], 5.00th=[ 881], 10.00th=[ 881], 20.00th=[ 48497], | 30.00th=[143655], 40.00th=[143655], 50.00th=[158335], 60.00th=[164627], | 70.00th=[164627], 80.00th=[206570], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1980, max= 3989, per=39.70%, avg=2502.00, stdev=991.64, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=2, BW=2050KiB/s (2099kB/s)(5120KiB/2498msec); 0 zone resets clat (msec): min=201, max=408, avg=287.43, stdev=108.12 lat (msec): min=201, max=408, avg=287.53, stdev=108.15 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 1980, max= 4079, per=30.44%, avg=2686.33, stdev=1206.13, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 50=8.33%, 250=58.33%, 500=25.00% cpu : usr=0.00%, sys=25.51%, ctx=309, 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=145835: Fri Sep 18 21:51:56 2026 read: IOPS=0, BW=631KiB/s (646kB/s)(2048KiB/3248msec) clat (msec): min=75, max=527, avg=301.22, stdev=319.62 lat (msec): min=75, max=527, avg=301.22, stdev=319.62 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 75], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1420, max= 2039, per=27.44%, avg=1729.50, stdev=437.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3153KiB/s (3228kB/s)(10.0MiB/3248msec); 0 zone resets clat (msec): min=80, max=579, avg=264.00, stdev=142.90 lat (msec): min=80, max=579, avg=264.43, stdev=142.96 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 288], | 70.00th=[ 292], 80.00th=[ 326], 90.00th=[ 368], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1980, max= 6119, per=53.26%, avg=4699.67, stdev=2356.05, samples=3 iops : min= 1, max= 5, avg= 3.67, stdev= 2.31, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=20.33%, ctx=202, 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=145836: Fri Sep 18 21:51:56 2026 read: IOPS=2, BW=2061KiB/s (2111kB/s)(6144KiB/2981msec) clat (usec): min=584, max=417613, avg=133206.78, stdev=167856.91 lat (usec): min=585, max=417614, avg=133207.84, stdev=167856.74 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[ 1221], | 30.00th=[ 1221], 40.00th=[ 3654], 50.00th=[ 3654], 60.00th=[154141], | 70.00th=[221250], 80.00th=[221250], 90.00th=[417334], 95.00th=[417334], | 99.00th=[417334], 99.50th=[417334], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 2048, max= 4055, per=53.30%, avg=3359.67, stdev=1136.62, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=2, BW=2061KiB/s (2111kB/s)(6144KiB/2981msec); 0 zone resets clat (msec): min=230, max=571, avg=363.00, stdev=131.12 lat (msec): min=231, max=572, avg=363.13, stdev=131.06 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 326], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1988, max= 3757, per=27.82%, avg=2455.00, stdev=868.36, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=21.17%, ctx=223, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145837: Fri Sep 18 21:51:56 2026 read: IOPS=1, BW=1576KiB/s (1614kB/s)(5120KiB/3249msec) clat (usec): min=459, max=191025, avg=71635.07, stdev=97824.20 lat (usec): min=459, max=191025, avg=71635.84, stdev=97824.13 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 461], | 30.00th=[ 482], 40.00th=[ 482], 50.00th=[ 545], 60.00th=[ 545], | 70.00th=[164627], 80.00th=[164627], 90.00th=[191890], 95.00th=[191890], | 99.00th=[191890], 99.50th=[191890], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2206KiB/s (2259kB/s)(7168KiB/3249msec); 0 zone resets clat (msec): min=171, max=681, avg=412.50, stdev=220.43 lat (msec): min=171, max=681, avg=412.57, stdev=220.45 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 414], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 667], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1878, max= 3961, per=26.71%, avg=2357.20, stdev=898.32, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=41.67%, 500=8.33%, 750=25.00% cpu : usr=0.09%, sys=15.49%, ctx=153, 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=6303KiB/s (6455kB/s), 631KiB/s-2869KiB/s (646kB/s-2938kB/s), io=20.0MiB (20.0MB), run=2498-3249msec WRITE: bw=8825KiB/s (9037kB/s), 2050KiB/s-3153KiB/s (2099kB/s-3228kB/s), io=28.0MiB (29.4MB), run=2498-3249msec 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=145844: Fri Sep 18 21:52:10 2026 read: IOPS=1, BW=5032KiB/s (5153kB/s)(12.0MiB/2442msec) clat (msec): min=575, max=883, avg=757.43, stdev=161.23 lat (msec): min=575, max=883, avg=757.43, stdev=161.23 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 885], 80.00th=[ 885], 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= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=15.93%, ctx=321, 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=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=145845: Fri Sep 18 21:52:10 2026 read: IOPS=0, BW=1519KiB/s (1556kB/s)(4096KiB/2696msec) clat (nsec): min=562997k, max=562997k, avg=562996627.00, stdev= 0.00 lat (nsec): min=562999k, max=562999k, avg=562998993.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 5720, max= 5720, per=94.13%, avg=5720.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3039KiB/s (3112kB/s)(8192KiB/2696msec); 0 zone resets clat (msec): min=559, max=1448, avg=1003.85, stdev=628.69 lat (msec): min=559, max=1449, avg=1004.77, stdev=629.50 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8078, max= 8078, per=91.49%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.56%, ctx=66, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145847: Fri Sep 18 21:52:10 2026 write: IOPS=0, BW=3311KiB/s (3391kB/s)(12.0MiB/3711msec); 0 zone resets clat (msec): min=273, max=1783, avg=1175.69, stdev=796.75 lat (msec): min=273, max=1783, avg=1176.02, stdev=796.73 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8126, max= 8143, per=92.13%, avg=8134.50, stdev=12.02, 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=5.52%, ctx=76, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145849: Fri Sep 18 21:52:10 2026 write: IOPS=1, BW=5461KiB/s (5592kB/s)(12.0MiB/2250msec); 0 zone resets clat (msec): min=337, max=1383, avg=702.64, stdev=589.95 lat (msec): min=338, max=1383, avg=702.97, stdev=589.98 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 5483, max= 5483, per=62.10%, avg=5483.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=8.05%, ctx=74, 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 Run status group 0 (all jobs): READ: bw=6077KiB/s (6223kB/s), 1519KiB/s-5032KiB/s (1556kB/s-5153kB/s), io=16.0MiB (16.8MB), run=2442-2696msec WRITE: bw=8830KiB/s (9042kB/s), 3039KiB/s-5461KiB/s (3112kB/s-5592kB/s), io=32.0MiB (33.6MB), run=2250-3711msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145846: Fri Sep 18 21:52:11 2026 read: IOPS=2, BW=8365KiB/s (8566kB/s)(12.0MiB/1469msec) clat (msec): min=275, max=705, avg=436.52, stdev=234.47 lat (msec): min=275, max=705, avg=436.52, stdev=234.47 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7236, max= 8094, per=100.00%, avg=7665.00, stdev=606.70, 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=11.44%, ctx=57, 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=145848: Fri Sep 18 21:52:11 2026 read: IOPS=0, BW=1109KiB/s (1136kB/s)(4096KiB/3693msec) clat (nsec): min=1526.3M, max=1526.3M, avg=1526277354.00, stdev= 0.00 lat (nsec): min=1526.3M, max=1526.3M, avg=1526279714.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1519], 5.00th=[ 1519], 10.00th=[ 1519], 20.00th=[ 1519], | 30.00th=[ 1519], 40.00th=[ 1519], 50.00th=[ 1519], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2218KiB/s (2271kB/s)(8192KiB/3693msec); 0 zone resets clat (msec): min=948, max=1055, avg=1001.56, stdev=75.69 lat (msec): min=948, max=1055, avg=1002.14, stdev=75.31 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 1053], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8078, max= 8078, per=91.04%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.09%, ctx=64, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145850: Fri Sep 18 21:52:11 2026 write: IOPS=0, BW=3743KiB/s (3833kB/s)(12.0MiB/3283msec); 0 zone resets clat (msec): min=280, max=1547, avg=1050.37, stdev=676.30 lat (msec): min=280, max=1547, avg=1050.69, stdev=676.29 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7406, max= 8078, per=87.25%, avg=7742.00, stdev=475.18, 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=0.03%, sys=3.90%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145851: Fri Sep 18 21:52:11 2026 write: IOPS=1, BW=4692KiB/s (4804kB/s)(12.0MiB/2619msec); 0 zone resets clat (msec): min=300, max=1484, avg=838.16, stdev=599.61 lat (msec): min=300, max=1484, avg=839.11, stdev=599.42 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8047, max= 8094, per=90.96%, avg=8070.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.70%, ctx=43, 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 Run status group 0 (all jobs): READ: bw=4437KiB/s (4543kB/s), 1109KiB/s-8365KiB/s (1136kB/s-8566kB/s), io=16.0MiB (16.8MB), run=1469-3693msec WRITE: bw=8873KiB/s (9086kB/s), 2218KiB/s-4692KiB/s (2271kB/s-4804kB/s), io=32.0MiB (33.6MB), run=2619-3693msec