== sanity test 398b: DIO and buffer IO race ============== 03:25:52 (1786951552) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.25131 s, 9.6 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=144000: Mon Aug 17 03:28:19 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5992KiB/128389msec) clat (usec): min=34, max=913688, avg=41765.21, stdev=38914.62 lat (usec): min=34, max=913690, avg=41774.95, stdev=38914.20 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 3163], 20.00th=[ 19530], | 30.00th=[ 25297], 40.00th=[ 29754], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[154141], 99.50th=[177210], 99.90th=[350225], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 5, max= 112, per=25.03%, avg=46.31, stdev=19.22, samples=252 iops : min= 1, max= 28, avg=10.92, stdev= 4.87, samples=252 write: IOPS=12, BW=49.0KiB/s (50.2kB/s)(6296KiB/128389msec); 0 zone resets clat (usec): min=1001, max=414266, avg=41409.40, stdev=41828.46 lat (usec): min=1003, max=414268, avg=41430.95, stdev=41835.61 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1467], 10.00th=[ 2114], 20.00th=[ 5014], | 30.00th=[ 9765], 40.00th=[ 20055], 50.00th=[ 30540], 60.00th=[ 41681], | 70.00th=[ 54264], 80.00th=[ 71828], 90.00th=[ 98042], 95.00th=[122160], | 99.00th=[179307], 99.50th=[202376], 99.90th=[270533], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7, max= 152, per=25.33%, avg=48.89, stdev=22.63, samples=251 iops : min= 1, max= 38, avg=11.57, stdev= 5.71, samples=251 lat (usec) : 50=0.62%, 100=3.65%, 250=0.42%, 500=0.07% lat (msec) : 2=4.75%, 4=3.97%, 10=7.42%, 20=9.67%, 50=38.67% lat (msec) : 100=23.70%, 250=6.90%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.09%, ctx=6591, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144001: Mon Aug 17 03:28:19 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5940KiB/127212msec) clat (usec): min=34, max=482655, avg=41426.62, stdev=33798.06 lat (usec): min=35, max=482657, avg=41428.06, stdev=33798.06 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 11994], 20.00th=[ 20055], | 30.00th=[ 25297], 40.00th=[ 29492], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 50070], 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 91751], | 99.00th=[154141], 99.50th=[223347], 99.90th=[304088], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 5, max= 111, per=25.23%, avg=46.68, stdev=21.18, samples=248 iops : min= 1, max= 27, avg=11.02, stdev= 5.33, samples=248 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(6348KiB/127212msec); 0 zone resets clat (usec): min=964, max=1001.1k, avg=40985.89, stdev=46894.96 lat (usec): min=965, max=1001.1k, avg=40990.05, stdev=46894.95 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1418], 10.00th=[ 1680], | 20.00th=[ 4555], 30.00th=[ 8717], 40.00th=[ 18744], | 50.00th=[ 30802], 60.00th=[ 41157], 70.00th=[ 54789], | 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[ 122160], | 99.00th=[ 179307], 99.50th=[ 208667], 99.90th=[ 261096], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 5, max= 128, per=25.70%, avg=49.61, stdev=22.83, samples=249 iops : min= 1, max= 32, avg=11.76, stdev= 5.78, samples=249 lat (usec) : 50=0.36%, 100=3.45%, 250=0.36%, 750=0.07%, 1000=0.07% lat (msec) : 2=5.86%, 4=3.48%, 10=7.26%, 20=9.80%, 50=37.92% lat (msec) : 100=24.93%, 250=6.18%, 500=0.23%, 2000=0.03% cpu : usr=0.08%, sys=4.97%, ctx=6442, 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=144002: Mon Aug 17 03:28:19 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6028KiB/127690msec) clat (usec): min=33, max=265511, avg=40432.52, stdev=30034.01 lat (usec): min=34, max=265512, avg=40435.15, stdev=30034.23 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 111], 20.00th=[ 19268], | 30.00th=[ 24773], 40.00th=[ 29492], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[133694], 99.50th=[170918], 99.90th=[254804], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 142, per=25.52%, avg=47.21, stdev=20.44, samples=248 iops : min= 1, max= 35, avg=11.15, stdev= 5.17, samples=248 write: IOPS=12, BW=49.0KiB/s (50.2kB/s)(6260KiB/127690msec); 0 zone resets clat (usec): min=958, max=1149.5k, avg=42269.96, stdev=49890.20 lat (usec): min=959, max=1149.5k, avg=42278.05, stdev=49888.19 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 1975], | 20.00th=[ 4490], 30.00th=[ 9634], 40.00th=[ 21627], | 50.00th=[ 32113], 60.00th=[ 42730], 70.00th=[ 54789], | 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[ 125305], | 99.00th=[ 179307], 99.50th=[ 212861], 99.90th=[ 254804], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 103, per=25.25%, avg=48.72, stdev=19.60, samples=249 iops : min= 1, max= 25, avg=11.53, stdev= 4.94, samples=249 lat (usec) : 50=0.55%, 100=4.23%, 250=0.23%, 1000=0.07% lat (msec) : 2=5.18%, 4=4.49%, 10=6.22%, 20=9.34%, 50=38.15% lat (msec) : 100=25.36%, 250=6.05%, 500=0.10%, 2000=0.03% cpu : usr=0.09%, sys=5.04%, ctx=6480, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144003: Mon Aug 17 03:28:19 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6052KiB/129589msec) clat (usec): min=33, max=575017, avg=41228.03, stdev=33135.01 lat (usec): min=34, max=575019, avg=41231.03, stdev=33139.26 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 676], 20.00th=[ 19268], | 30.00th=[ 24249], 40.00th=[ 28967], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 60556], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[168821], 99.90th=[231736], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 7, max= 111, per=25.27%, avg=46.75, stdev=20.43, samples=251 iops : min= 1, max= 27, avg=11.04, stdev= 5.15, samples=251 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6236KiB/129589msec); 0 zone resets clat (usec): min=920, max=1129.8k, avg=42685.74, stdev=51156.45 lat (usec): min=922, max=1129.8k, avg=42690.41, stdev=51157.68 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1401], 10.00th=[ 1680], | 20.00th=[ 4752], 30.00th=[ 10028], 40.00th=[ 21365], | 50.00th=[ 31589], 60.00th=[ 42206], 70.00th=[ 54264], | 80.00th=[ 71828], 90.00th=[ 101188], 95.00th=[ 123208], | 99.00th=[ 183501], 99.50th=[ 217056], 99.90th=[ 429917], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 127, per=24.75%, avg=47.76, stdev=20.83, samples=253 iops : min= 1, max= 31, avg=11.30, stdev= 5.27, samples=253 lat (usec) : 50=0.55%, 100=3.94%, 250=0.42%, 750=0.03%, 1000=0.07% lat (msec) : 2=5.63%, 4=3.55%, 10=6.28%, 20=9.73%, 50=38.09% lat (msec) : 100=24.19%, 250=7.32%, 500=0.13%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=5.04%, ctx=6602, 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=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=185KiB/s (190kB/s), 46.7KiB/s-47.2KiB/s (47.8kB/s-48.3kB/s), io=23.4MiB (24.6MB), run=127212-129589msec WRITE: bw=194KiB/s (199kB/s), 48.1KiB/s-49.9KiB/s (49.3kB/s-51.1kB/s), io=24.6MiB (25.7MB), run=127212-129589msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144004: Mon Aug 17 03:31:08 2026 read: IOPS=5, BW=20.2KiB/s (20.7kB/s)(5992KiB/296918msec) clat (msec): min=5, max=926, avg=41.77, stdev=40.51 lat (msec): min=5, max=926, avg=41.77, stdev=40.51 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 80], 95.00th=[ 108], | 99.00th=[ 188], 99.50th=[ 215], 99.90th=[ 300], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 87, per=28.41%, avg=22.73, stdev=14.61, samples=507 iops : min= 1, max= 21, avg= 5.05, stdev= 3.69, samples=507 write: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6296KiB/296918msec); 0 zone resets clat (msec): min=35, max=889, avg=148.53, stdev=65.10 lat (msec): min=35, max=889, avg=148.53, stdev=65.10 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 110], 40.00th=[ 123], 50.00th=[ 138], 60.00th=[ 153], | 70.00th=[ 171], 80.00th=[ 194], 90.00th=[ 232], 95.00th=[ 268], | 99.00th=[ 347], 99.50th=[ 388], 99.90th=[ 600], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 56, per=24.88%, avg=20.90, stdev= 8.48, samples=577 iops : min= 1, max= 14, avg= 4.58, stdev= 2.18, samples=577 lat (msec) : 10=1.24%, 20=10.25%, 50=25.81%, 100=20.35%, 250=38.67% lat (msec) : 500=3.58%, 750=0.03%, 1000=0.07% cpu : usr=0.04%, sys=1.28%, ctx=5386, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144005: Mon Aug 17 03:31:08 2026 read: IOPS=5, BW=20.1KiB/s (20.5kB/s)(5940KiB/296219msec) clat (msec): min=6, max=1015, avg=41.65, stdev=42.51 lat (msec): min=6, max=1015, avg=41.66, stdev=42.51 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 79], 95.00th=[ 107], | 99.00th=[ 174], 99.50th=[ 249], 99.90th=[ 326], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 87, per=28.35%, avg=22.68, stdev=14.93, samples=504 iops : min= 1, max= 21, avg= 5.03, stdev= 3.78, samples=504 write: IOPS=5, BW=21.4KiB/s (21.9kB/s)(6348KiB/296219msec); 0 zone resets clat (msec): min=34, max=714, avg=147.31, stdev=62.68 lat (msec): min=34, max=714, avg=147.32, stdev=62.67 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 70], 10.00th=[ 81], 20.00th=[ 97], | 30.00th=[ 111], 40.00th=[ 124], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 342], 99.50th=[ 405], 99.90th=[ 477], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 53, per=25.18%, avg=21.15, stdev= 8.86, samples=576 iops : min= 1, max= 13, avg= 4.64, stdev= 2.27, samples=576 lat (msec) : 10=1.53%, 20=10.64%, 50=23.99%, 100=21.16%, 250=39.36% lat (msec) : 500=3.26%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5502, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144006: Mon Aug 17 03:31:08 2026 read: IOPS=5, BW=20.2KiB/s (20.7kB/s)(6028KiB/298131msec) clat (msec): min=5, max=413, avg=41.60, stdev=33.93 lat (msec): min=5, max=413, avg=41.60, stdev=33.93 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 58], 90.00th=[ 82], 95.00th=[ 107], | 99.00th=[ 182], 99.50th=[ 215], 99.90th=[ 296], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 87, per=28.03%, avg=22.42, stdev=14.83, samples=517 iops : min= 1, max= 21, avg= 4.97, stdev= 3.75, samples=517 write: IOPS=5, BW=20.0KiB/s (21.5kB/s)(6260KiB/298131msec); 0 zone resets clat (msec): min=32, max=1098, avg=150.09, stdev=70.07 lat (msec): min=32, max=1098, avg=150.09, stdev=70.07 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 112], 40.00th=[ 125], 50.00th=[ 138], 60.00th=[ 153], | 70.00th=[ 169], 80.00th=[ 194], 90.00th=[ 236], 95.00th=[ 275], | 99.00th=[ 359], 99.50th=[ 409], 99.90th=[ 709], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 55, per=24.56%, avg=20.63, stdev= 8.80, samples=582 iops : min= 1, max= 13, avg= 4.51, stdev= 2.25, samples=582 lat (msec) : 10=1.30%, 20=10.32%, 50=25.52%, 100=20.38%, 250=38.41% lat (msec) : 500=3.97%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.34%, ctx=5616, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144007: Mon Aug 17 03:31:08 2026 read: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6052KiB/296216msec) clat (msec): min=6, max=403, avg=41.18, stdev=35.31 lat (msec): min=6, max=403, avg=41.19, stdev=35.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 55], 90.00th=[ 78], 95.00th=[ 102], | 99.00th=[ 192], 99.50th=[ 224], 99.90th=[ 317], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7, max= 72, per=29.58%, avg=23.67, stdev=14.88, samples=493 iops : min= 1, max= 18, avg= 5.28, stdev= 3.76, samples=493 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6236KiB/296216msec); 0 zone resets clat (msec): min=40, max=1099, avg=149.67, stdev=67.74 lat (msec): min=40, max=1099, avg=149.67, stdev=67.74 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 99], | 30.00th=[ 111], 40.00th=[ 124], 50.00th=[ 136], 60.00th=[ 150], | 70.00th=[ 169], 80.00th=[ 194], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 351], 99.50th=[ 397], 99.90th=[ 567], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 54, per=24.72%, avg=20.76, stdev= 8.43, samples=576 iops : min= 1, max= 13, avg= 4.55, stdev= 2.17, samples=576 lat (msec) : 10=1.27%, 20=11.23%, 50=25.00%, 100=19.82%, 250=38.74% lat (msec) : 500=3.87%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.30%, ctx=5457, 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=80.5KiB/s (82.5kB/s), 20.1KiB/s-20.4KiB/s (20.5kB/s-20.9kB/s), io=23.4MiB (24.6MB), run=296216-298131msec WRITE: bw=84.3KiB/s (86.3kB/s), 20.0KiB/s-21.4KiB/s (21.5kB/s-21.9kB/s), io=24.6MiB (25.7MB), run=296216-298131msec 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=144074: Mon Aug 17 03:31:47 2026 read: IOPS=12, BW=194KiB/s (198kB/s)(5920KiB/30549msec) clat (usec): min=31, max=235248, avg=41444.53, stdev=36832.82 lat (usec): min=31, max=235249, avg=41461.92, stdev=36829.86 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 74], | 30.00th=[ 20579], 40.00th=[ 30016], 50.00th=[ 36439], 60.00th=[ 44303], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[112722], | 99.00th=[154141], 99.50th=[183501], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 379, per=24.95%, avg=193.83, stdev=77.32, samples=58 iops : min= 1, max= 23, avg=11.34, stdev= 4.89, samples=58 write: IOPS=13, BW=208KiB/s (213kB/s)(6368KiB/30549msec); 0 zone resets clat (usec): min=1527, max=336017, avg=37257.11, stdev=41745.83 lat (usec): min=1530, max=336019, avg=37259.71, stdev=41745.79 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1876], 10.00th=[ 2442], 20.00th=[ 5800], | 30.00th=[ 8979], 40.00th=[ 14091], 50.00th=[ 22676], 60.00th=[ 35914], | 70.00th=[ 45876], 80.00th=[ 63177], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[189793], 99.50th=[252707], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 21, max= 438, per=25.33%, avg=207.24, stdev=89.01, samples=59 iops : min= 1, max= 27, avg=12.20, stdev= 5.62, samples=59 lat (usec) : 50=2.08%, 100=9.11%, 250=0.26%, 500=0.13% lat (msec) : 2=3.78%, 4=3.91%, 10=9.77%, 20=9.64%, 50=30.21% lat (msec) : 100=23.57%, 250=7.29%, 500=0.26% cpu : usr=0.07%, sys=5.22%, ctx=1432, 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=144075: Mon Aug 17 03:31:47 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(5744KiB/30791msec) clat (usec): min=36, max=332519, avg=45297.38, stdev=40484.23 lat (usec): min=36, max=332521, avg=45298.59, stdev=40484.22 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 281], | 30.00th=[ 25035], 40.00th=[ 32637], 50.00th=[ 40109], 60.00th=[ 49546], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[198181], 99.50th=[208667], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 31, max= 319, per=23.97%, avg=186.22, stdev=74.29, samples=60 iops : min= 1, max= 19, avg=10.87, stdev= 4.66, samples=60 write: IOPS=13, BW=213KiB/s (218kB/s)(6544KiB/30791msec); 0 zone resets clat (usec): min=1471, max=217730, avg=35158.63, stdev=38824.35 lat (usec): min=1473, max=217732, avg=35187.13, stdev=38864.53 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1909], 10.00th=[ 2606], 20.00th=[ 5538], | 30.00th=[ 8291], 40.00th=[ 11731], 50.00th=[ 19530], 60.00th=[ 30540], | 70.00th=[ 44303], 80.00th=[ 60031], 90.00th=[ 96994], 95.00th=[114820], | 99.00th=[156238], 99.50th=[187696], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 62, max= 512, per=25.82%, avg=211.23, stdev=101.15, samples=60 iops : min= 3, max= 32, avg=12.43, stdev= 6.42, samples=60 lat (usec) : 50=0.91%, 100=7.68%, 250=0.65%, 500=0.13%, 750=0.26% lat (msec) : 2=3.65%, 4=4.56%, 10=11.20%, 20=9.24%, 50=28.39% lat (msec) : 100=25.91%, 250=7.29%, 500=0.13% cpu : usr=0.06%, sys=5.01%, 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=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=144076: Mon Aug 17 03:31:47 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(6256KiB/30688msec) clat (usec): min=33, max=505477, avg=41943.57, stdev=41856.07 lat (usec): min=34, max=505478, avg=41944.75, stdev=41856.08 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 78], | 30.00th=[ 22676], 40.00th=[ 30540], 50.00th=[ 39584], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[ 96994], | 99.00th=[173016], 99.50th=[185598], 99.90th=[505414], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 45, max= 480, per=26.29%, avg=204.30, stdev=91.78, samples=60 iops : min= 2, max= 30, avg=12.00, stdev= 5.84, samples=60 write: IOPS=12, BW=197KiB/s (201kB/s)(6032KiB/30688msec); 0 zone resets clat (usec): min=1478, max=407914, avg=36993.40, stdev=42112.73 lat (usec): min=1480, max=407917, avg=37012.91, stdev=42103.05 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1893], 10.00th=[ 2868], 20.00th=[ 5276], | 30.00th=[ 9110], 40.00th=[ 14615], 50.00th=[ 23987], 60.00th=[ 33817], | 70.00th=[ 45351], 80.00th=[ 62129], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[168821], 99.50th=[223347], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 31, max= 416, per=24.06%, avg=196.85, stdev=87.28, samples=59 iops : min= 1, max= 26, avg=11.53, stdev= 5.54, samples=59 lat (usec) : 50=1.95%, 100=9.64%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=2.86%, 4=4.04%, 10=9.64%, 20=7.42%, 50=33.98% lat (msec) : 100=23.57%, 250=5.86%, 500=0.13%, 750=0.13% cpu : usr=0.07%, sys=4.85%, ctx=1370, 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=144077: Mon Aug 17 03:31:47 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(6032KiB/29524msec) clat (usec): min=33, max=342297, avg=41166.55, stdev=37817.63 lat (usec): min=34, max=342299, avg=41170.59, stdev=37814.54 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 74], | 30.00th=[ 20579], 40.00th=[ 29754], 50.00th=[ 38011], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[143655], 99.50th=[158335], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 31, max= 544, per=26.21%, avg=203.68, stdev=98.60, samples=57 iops : min= 1, max= 34, avg=11.98, stdev= 6.21, samples=57 write: IOPS=13, BW=212KiB/s (217kB/s)(6256KiB/29524msec); 0 zone resets clat (usec): min=1518, max=230553, avg=34822.31, stdev=38350.86 lat (usec): min=1519, max=230554, avg=34864.16, stdev=38358.37 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1876], 10.00th=[ 2409], 20.00th=[ 4228], | 30.00th=[ 7701], 40.00th=[ 11338], 50.00th=[ 19530], 60.00th=[ 31589], | 70.00th=[ 44303], 80.00th=[ 60556], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[168821], 99.50th=[177210], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 63, max= 448, per=25.73%, avg=210.47, stdev=85.70, samples=57 iops : min= 3, max= 28, avg=12.42, stdev= 5.46, samples=57 lat (usec) : 50=1.56%, 100=11.33%, 250=0.39%, 1000=0.13% lat (msec) : 2=3.65%, 4=6.51%, 10=8.85%, 20=7.81%, 50=27.34% lat (msec) : 100=25.78%, 250=6.51%, 500=0.13% cpu : usr=0.09%, sys=5.21%, ctx=1344, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=778KiB/s (797kB/s), 187KiB/s-204KiB/s (191kB/s-209kB/s), io=23.4MiB (24.5MB), run=29524-30791msec WRITE: bw=818KiB/s (838kB/s), 197KiB/s-213KiB/s (201kB/s-218kB/s), io=24.6MiB (25.8MB), run=29524-30791msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144078: Mon Aug 17 03:32:33 2026 read: IOPS=4, BW=78.5KiB/s (80.3kB/s)(5920KiB/75460msec) clat (msec): min=5, max=378, avg=43.30, stdev=46.10 lat (msec): min=5, max=378, avg=43.31, stdev=46.10 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 54], 90.00th=[ 87], 95.00th=[ 133], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 383, per=28.70%, avg=89.25, stdev=55.58, samples=130 iops : min= 1, max= 23, avg= 4.77, stdev= 3.53, samples=130 write: IOPS=5, BW=84.4KiB/s (86.4kB/s)(6368KiB/75460msec); 0 zone resets clat (msec): min=37, max=727, avg=149.10, stdev=70.81 lat (msec): min=37, max=727, avg=149.10, stdev=70.81 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 95], | 30.00th=[ 108], 40.00th=[ 124], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 228], 95.00th=[ 266], | 99.00th=[ 405], 99.50th=[ 531], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 30, max= 191, per=26.18%, avg=85.86, stdev=36.68, samples=146 iops : min= 1, max= 11, avg= 4.56, stdev= 2.37, samples=146 lat (msec) : 10=1.17%, 20=12.24%, 50=24.35%, 100=19.27%, 250=39.06% lat (msec) : 500=3.65%, 750=0.26% cpu : usr=0.04%, sys=1.31%, ctx=1333, 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=144079: Mon Aug 17 03:32:33 2026 read: IOPS=4, BW=74.8KiB/s (76.6kB/s)(5744KiB/76787msec) clat (msec): min=8, max=280, avg=39.86, stdev=36.01 lat (msec): min=8, max=280, avg=39.86, stdev=36.01 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 52], 90.00th=[ 89], 95.00th=[ 122], | 99.00th=[ 169], 99.50th=[ 205], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 28, max= 319, per=29.99%, avg=93.26, stdev=58.35, samples=120 iops : min= 1, max= 19, avg= 5.06, stdev= 3.69, samples=120 write: IOPS=5, BW=85.2KiB/s (87.3kB/s)(6544KiB/76787msec); 0 zone resets clat (msec): min=44, max=869, avg=151.88, stdev=78.09 lat (msec): min=44, max=869, avg=151.88, stdev=78.09 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 109], 40.00th=[ 120], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 199], 90.00th=[ 249], 95.00th=[ 284], | 99.00th=[ 393], 99.50th=[ 435], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 30, max= 224, per=26.42%, avg=86.64, stdev=36.73, samples=148 iops : min= 1, max= 14, avg= 4.61, stdev= 2.39, samples=148 lat (msec) : 10=1.04%, 20=12.50%, 50=23.31%, 100=18.36%, 250=39.45% lat (msec) : 500=5.08%, 750=0.13%, 1000=0.13% cpu : usr=0.04%, sys=1.24%, ctx=1359, 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=144080: Mon Aug 17 03:32:33 2026 read: IOPS=5, BW=85.1KiB/s (87.2kB/s)(6256KiB/73496msec) clat (msec): min=6, max=383, avg=39.51, stdev=42.87 lat (msec): min=6, max=383, avg=39.51, stdev=42.87 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 72], 95.00th=[ 126], | 99.00th=[ 236], 99.50th=[ 334], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 30, max= 351, per=31.56%, avg=98.14, stdev=66.26, samples=126 iops : min= 1, max= 21, avg= 5.34, stdev= 4.25, samples=126 write: IOPS=5, BW=82.1KiB/s (84.0kB/s)(6032KiB/73496msec); 0 zone resets clat (msec): min=33, max=531, avg=152.86, stdev=76.69 lat (msec): min=33, max=531, avg=152.86, stdev=76.69 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 71], 10.00th=[ 80], 20.00th=[ 94], | 30.00th=[ 108], 40.00th=[ 122], 50.00th=[ 133], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 199], 90.00th=[ 249], 95.00th=[ 309], | 99.00th=[ 456], 99.50th=[ 489], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 31, max= 160, per=25.41%, avg=83.36, stdev=34.67, samples=142 iops : min= 1, max= 10, avg= 4.41, stdev= 2.24, samples=142 lat (msec) : 10=0.91%, 20=15.10%, 50=25.52%, 100=18.10%, 250=35.29% lat (msec) : 500=4.95%, 750=0.13% cpu : usr=0.03%, sys=1.37%, ctx=1358, 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=144081: Mon Aug 17 03:32:33 2026 read: IOPS=4, BW=79.4KiB/s (81.4kB/s)(6032KiB/75925msec) clat (msec): min=6, max=360, avg=42.01, stdev=39.53 lat (msec): min=6, max=360, avg=42.01, stdev=39.53 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 93], 95.00th=[ 127], | 99.00th=[ 201], 99.50th=[ 247], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 318, per=29.14%, avg=90.62, stdev=56.51, samples=130 iops : min= 1, max= 19, avg= 4.87, stdev= 3.61, samples=130 write: IOPS=5, BW=82.4KiB/s (84.4kB/s)(6256KiB/75925msec); 0 zone resets clat (msec): min=48, max=469, avg=152.63, stdev=72.22 lat (msec): min=48, max=469, avg=152.65, stdev=72.22 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 73], 10.00th=[ 84], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 123], 50.00th=[ 138], 60.00th=[ 153], | 70.00th=[ 174], 80.00th=[ 197], 90.00th=[ 243], 95.00th=[ 300], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 30, max= 223, per=25.89%, avg=84.91, stdev=36.60, samples=145 iops : min= 1, max= 13, avg= 4.50, stdev= 2.36, samples=145 lat (msec) : 10=1.82%, 20=10.68%, 50=25.39%, 100=19.40%, 250=37.89% lat (msec) : 500=4.82% cpu : usr=0.02%, sys=1.21%, ctx=1354, 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=312KiB/s (319kB/s), 74.8KiB/s-85.1KiB/s (76.6kB/s-87.2kB/s), io=23.4MiB (24.5MB), run=73496-76787msec WRITE: bw=328KiB/s (336kB/s), 82.1KiB/s-85.2KiB/s (84.0kB/s-87.3kB/s), io=24.6MiB (25.8MB), run=73496-76787msec 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=144099: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1439KiB/s (1474kB/s)(7168KiB/4980msec) clat (msec): min=123, max=804, avg=272.71, stdev=244.28 lat (msec): min=123, max=804, avg=272.71, stdev=244.28 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 129], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 321], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1946, max= 4087, per=78.26%, avg=3017.75, stdev=1193.87, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1028KiB/s (1053kB/s)(5120KiB/4980msec); 0 zone resets clat (msec): min=293, max=865, avg=582.27, stdev=220.63 lat (msec): min=293, max=865, avg=582.34, stdev=220.64 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1946, max= 4015, per=49.39%, avg=2666.67, stdev=1168.62, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=3.37%, ctx=97, 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=144100: Mon Aug 17 03:32:54 2026 read: IOPS=0, BW=386KiB/s (395kB/s)(2048KiB/5310msec) clat (msec): min=156, max=258, avg=207.42, stdev=72.52 lat (msec): min=156, max=258, avg=207.42, stdev=72.52 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1416, max= 1793, per=41.61%, avg=1604.50, stdev=266.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1928KiB/s (1975kB/s)(10.0MiB/5310msec); 0 zone resets clat (msec): min=134, max=953, avg=477.36, stdev=291.57 lat (msec): min=134, max=953, avg=477.46, stdev=291.57 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 201], | 30.00th=[ 224], 40.00th=[ 338], 50.00th=[ 355], 60.00th=[ 430], | 70.00th=[ 575], 80.00th=[ 634], 90.00th=[ 936], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1416, max= 4087, per=41.04%, avg=2215.67, stdev=945.31, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=3.82%, ctx=84, 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=144101: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1196KiB/s (1225kB/s)(6144KiB/5135msec) clat (msec): min=118, max=428, avg=226.58, stdev=116.78 lat (msec): min=118, max=428, avg=226.58, stdev=116.78 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 134], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 228], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 1935, max= 3586, per=62.18%, avg=2397.75, stdev=793.57, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1196KiB/s (1225kB/s)(6144KiB/5135msec); 0 zone resets clat (msec): min=346, max=1020, avg=606.93, stdev=254.77 lat (msec): min=347, max=1020, avg=607.01, stdev=254.77 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 667], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1381, max= 2043, per=33.99%, avg=1835.20, stdev=273.04, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=3.97%, ctx=65, 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=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=144102: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1302KiB/s (1333kB/s)(5120KiB/3933msec) clat (msec): min=118, max=182, avg=154.29, stdev=25.33 lat (msec): min=118, max=182, avg=154.29, stdev=25.33 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 182], 95.00th=[ 182], | 99.00th=[ 182], 99.50th=[ 182], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 2035, max= 6107, per=100.00%, avg=4071.00, stdev=2879.34, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1823KiB/s (1866kB/s)(7168KiB/3933msec); 0 zone resets clat (msec): min=233, max=765, avg=443.84, stdev=212.34 lat (msec): min=233, max=766, avg=443.98, stdev=212.32 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 284], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 380], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 718], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1363, max= 3586, per=40.42%, avg=2182.17, stdev=738.55, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.13%, sys=3.54%, ctx=52, 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=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=3857KiB/s (3949kB/s), 386KiB/s-1439KiB/s (395kB/s-1474kB/s), io=20.0MiB (20.0MB), run=3933-5310msec WRITE: bw=5400KiB/s (5529kB/s), 1028KiB/s-1928KiB/s (1053kB/s-1975kB/s), io=28.0MiB (29.4MB), run=3933-5310msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144103: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1552KiB/s (1589kB/s)(7168KiB/4618msec) clat (usec): min=460, max=388316, avg=200247.25, stdev=148068.73 lat (usec): min=462, max=388318, avg=200248.66, stdev=148068.69 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 461], | 30.00th=[208667], 40.00th=[208667], 50.00th=[233833], 60.00th=[265290], | 70.00th=[265290], 80.00th=[304088], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 2039, max= 4039, per=71.77%, avg=2969.00, stdev=1075.17, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1109KiB/s (1135kB/s)(5120KiB/4618msec); 0 zone resets clat (msec): min=494, max=832, avg=642.62, stdev=121.90 lat (msec): min=494, max=832, avg=642.70, stdev=121.92 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1723, max= 2048, per=33.83%, avg=1959.50, stdev=158.26, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (usec) : 500=16.67% lat (msec) : 250=16.67%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=10.50%, ctx=122, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144104: Mon Aug 17 03:32:54 2026 read: IOPS=0, BW=414KiB/s (424kB/s)(2048KiB/4950msec) clat (usec): min=515, max=329654, avg=165084.77, stdev=232736.44 lat (usec): min=516, max=329656, avg=165086.47, stdev=232736.47 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 515], 60.00th=[329253], | 70.00th=[329253], 80.00th=[329253], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 1848, max= 2019, per=46.74%, avg=1933.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2069KiB/s (2118kB/s)(10.0MiB/4950msec); 0 zone resets clat (msec): min=125, max=830, avg=461.79, stdev=234.12 lat (msec): min=125, max=830, avg=461.88, stdev=234.13 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 146], | 30.00th=[ 321], 40.00th=[ 334], 50.00th=[ 405], 60.00th=[ 535], | 70.00th=[ 609], 80.00th=[ 625], 90.00th=[ 684], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1723, max= 4096, per=39.29%, avg=2275.43, stdev=810.78, samples=7 iops : min= 1, max= 4, avg= 1.57, stdev= 1.13, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=33.33%, 750=33.33%, 1000=8.33% cpu : usr=0.00%, sys=10.61%, ctx=168, 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=144105: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1588KiB/s (1627kB/s)(6144KiB/3868msec) clat (usec): min=333, max=251083, avg=42766.39, stdev=102057.77 lat (usec): min=334, max=251084, avg=42767.58, stdev=102057.96 clat percentiles (usec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 392], | 30.00th=[ 392], 40.00th=[ 490], 50.00th=[ 490], 60.00th=[ 1844], | 70.00th=[ 2474], 80.00th=[ 2474], 90.00th=[250610], 95.00th=[250610], | 99.00th=[250610], 99.50th=[250610], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 1723, max= 8175, per=100.00%, avg=4949.00, stdev=4562.25, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1588KiB/s (1627kB/s)(6144KiB/3868msec); 0 zone resets clat (msec): min=329, max=1052, avg=601.53, stdev=294.16 lat (msec): min=329, max=1052, avg=601.77, stdev=294.09 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 535], | 70.00th=[ 869], 80.00th=[ 869], 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= 1692, max= 4087, per=41.22%, avg=2387.50, stdev=1144.38, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=25.00% lat (msec) : 2=8.33%, 4=8.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=9.10%, ctx=107, 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=144106: Mon Aug 17 03:32:54 2026 read: IOPS=1, BW=1351KiB/s (1384kB/s)(5120KiB/3789msec) clat (usec): min=490, max=275778, avg=104773.85, stdev=126547.59 lat (usec): min=492, max=275780, avg=104775.27, stdev=126547.37 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 44827], 60.00th=[ 44827], | 70.00th=[202376], 80.00th=[202376], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1892KiB/s (1937kB/s)(7168KiB/3789msec); 0 zone resets clat (msec): min=252, max=751, avg=466.23, stdev=176.41 lat (msec): min=253, max=751, avg=466.31, stdev=176.42 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 439], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 609], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1665, max= 4039, per=39.66%, avg=2297.00, stdev=988.35, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=16.67% lat (msec) : 50=8.33%, 250=8.33%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=12.62%, ctx=144, 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=4137KiB/s (4237kB/s), 414KiB/s-1588KiB/s (424kB/s-1627kB/s), io=20.0MiB (20.0MB), run=3789-4950msec WRITE: bw=5792KiB/s (5931kB/s), 1109KiB/s-2069KiB/s (1135kB/s-2118kB/s), io=28.0MiB (29.4MB), run=3789-4950msec 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=144117: Mon Aug 17 03:33:09 2026 read: IOPS=1, BW=4161KiB/s (4261kB/s)(12.0MiB/2953msec) clat (msec): min=907, max=961, avg=934.54, stdev=26.84 lat (msec): min=907, max=961, avg=934.54, stdev=26.84 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8062, max= 8192, per=100.00%, avg=8127.00, stdev=91.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.03%, sys=11.38%, ctx=149, 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=144119: Mon Aug 17 03:33:09 2026 read: IOPS=0, BW=1161KiB/s (1189kB/s)(4096KiB/3527msec) clat (nsec): min=675511k, max=675511k, avg=675510933.00, stdev= 0.00 lat (nsec): min=675512k, max=675512k, avg=675512235.00, stdev= 0.00 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=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2323KiB/s (2378kB/s)(8192KiB/3527msec); 0 zone resets clat (msec): min=696, max=1886, avg=1291.04, stdev=841.48 lat (msec): min=696, max=1886, avg=1291.49, stdev=841.47 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 1888], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8192, max= 8192, per=88.18%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.06%, sys=4.20%, ctx=65, 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=144120: Mon Aug 17 03:33:09 2026 write: IOPS=0, BW=3733KiB/s (3822kB/s)(12.0MiB/3292msec); 0 zone resets clat (msec): min=557, max=1324, avg=1061.89, stdev=436.80 lat (msec): min=559, max=1327, avg=1063.66, stdev=436.99 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8015, max= 8110, per=86.79%, avg=8062.50, stdev=67.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=5.04%, ctx=83, 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=144121: Mon Aug 17 03:33:09 2026 write: IOPS=1, BW=4601KiB/s (4711kB/s)(12.0MiB/2671msec); 0 zone resets clat (msec): min=415, max=1209, avg=834.50, stdev=399.08 lat (msec): min=415, max=1210, avg=834.90, stdev=399.05 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7892, max= 8062, per=85.87%, avg=7977.00, stdev=120.21, 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=0.00%, sys=5.09%, ctx=52, 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=4645KiB/s (4757kB/s), 1161KiB/s-4161KiB/s (1189kB/s-4261kB/s), io=16.0MiB (16.8MB), run=2953-3527msec WRITE: bw=9291KiB/s (9514kB/s), 2323KiB/s-4601KiB/s (2378kB/s-4711kB/s), io=32.0MiB (33.6MB), run=2671-3527msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144114: Mon Aug 17 03:33:09 2026 read: IOPS=0, BW=3486KiB/s (3570kB/s)(12.0MiB/3525msec) clat (msec): min=251, max=1651, avg=1096.82, stdev=744.00 lat (msec): min=251, max=1651, avg=1096.82, stdev=744.00 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.87%, ctx=47, 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=144115: Mon Aug 17 03:33:09 2026 read: IOPS=0, BW=1231KiB/s (1261kB/s)(4096KiB/3327msec) clat (nsec): min=240462k, max=240462k, avg=240461551.00, stdev= 0.00 lat (nsec): min=240465k, max=240465k, avg=240464849.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2462KiB/s (2521kB/s)(8192KiB/3327msec); 0 zone resets clat (msec): min=1084, max=1749, avg=1417.07, stdev=470.34 lat (msec): min=1084, max=1750, avg=1417.44, stdev=470.34 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1754], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8094, max= 8094, per=97.33%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.64%, ctx=60, 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=144116: Mon Aug 17 03:33:09 2026 write: IOPS=0, BW=3119KiB/s (3194kB/s)(12.0MiB/3940msec); 0 zone resets clat (msec): min=223, max=1910, avg=1228.63, stdev=888.91 lat (msec): min=223, max=1911, avg=1229.01, stdev=889.04 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7937, max= 7984, per=95.73%, avg=7960.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.28%, ctx=35, 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=144118: Mon Aug 17 03:33:09 2026 write: IOPS=1, BW=5172KiB/s (5296kB/s)(12.0MiB/2376msec); 0 zone resets clat (msec): min=458, max=1220, avg=738.94, stdev=418.66 lat (msec): min=459, max=1220, avg=739.39, stdev=418.77 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 6390, max= 8110, per=87.18%, avg=7250.00, stdev=1216.22, 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=0.04%, sys=4.59%, ctx=49, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4648KiB/s (4759kB/s), 1231KiB/s-3486KiB/s (1261kB/s-3570kB/s), io=16.0MiB (16.8MB), run=3327-3525msec WRITE: bw=8317KiB/s (8516kB/s), 2462KiB/s-5172KiB/s (2521kB/s-5296kB/s), io=32.0MiB (33.6MB), run=2376-3940msec