== sanity test 398b: DIO and buffer IO race ============== 13:54:47 (1780336487) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.81052 s, 8.7 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=146539: Mon Jun 1 13:57:24 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5992KiB/136511msec) clat (usec): min=33, max=503145, avg=44527.29, stdev=34218.42 lat (usec): min=33, max=503147, avg=44533.08, stdev=34219.86 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 73], 10.00th=[ 11994], 20.00th=[ 21365], | 30.00th=[ 26084], 40.00th=[ 31065], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[158335], 99.50th=[183501], 99.90th=[263193], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 7, max= 102, per=25.46%, avg=43.54, stdev=20.83, samples=268 iops : min= 1, max= 25, avg=10.22, stdev= 5.25, samples=268 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6296KiB/136511msec); 0 zone resets clat (usec): min=1111, max=486648, avg=44191.53, stdev=46872.64 lat (usec): min=1113, max=486650, avg=44201.39, stdev=46881.64 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1532], 10.00th=[ 2040], 20.00th=[ 4817], | 30.00th=[ 9503], 40.00th=[ 20841], 50.00th=[ 32113], 60.00th=[ 43779], | 70.00th=[ 55837], 80.00th=[ 74974], 90.00th=[103285], 95.00th=[135267], | 99.00th=[208667], 99.50th=[233833], 99.90th=[358613], 99.95th=[488637], | 99.99th=[488637] bw ( KiB/s): min= 7, max= 127, per=25.45%, avg=45.56, stdev=20.51, samples=269 iops : min= 1, max= 31, avg=10.74, stdev= 5.18, samples=269 lat (usec) : 50=0.52%, 100=2.86%, 250=0.52%, 500=0.29%, 1000=0.03% lat (msec) : 2=4.98%, 4=4.30%, 10=6.61%, 20=8.69%, 50=36.65% lat (msec) : 100=26.24%, 250=8.04%, 500=0.23%, 750=0.03% cpu : usr=0.09%, sys=5.10%, ctx=6733, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146540: Mon Jun 1 13:57:24 2026 read: IOPS=10, BW=42.9KiB/s (43.0kB/s)(5940KiB/138334msec) clat (usec): min=30, max=442704, avg=45890.51, stdev=34700.11 lat (usec): min=30, max=442705, avg=45898.89, stdev=34704.19 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 70], 10.00th=[ 13173], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[102237], | 99.00th=[160433], 99.50th=[183501], 99.90th=[375391], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 6, max= 95, per=24.94%, avg=42.65, stdev=20.09, samples=271 iops : min= 1, max= 23, avg=10.00, stdev= 5.05, samples=271 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(6348KiB/138334msec); 0 zone resets clat (usec): min=1018, max=498917, avg=44106.30, stdev=46573.35 lat (usec): min=1020, max=498918, avg=44112.15, stdev=46573.05 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1582], 10.00th=[ 2376], 20.00th=[ 5276], | 30.00th=[ 10028], 40.00th=[ 20579], 50.00th=[ 31851], 60.00th=[ 43779], | 70.00th=[ 57410], 80.00th=[ 76022], 90.00th=[102237], 95.00th=[130548], | 99.00th=[217056], 99.50th=[246416], 99.90th=[304088], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 6, max= 111, per=25.58%, avg=45.79, stdev=21.72, samples=270 iops : min= 1, max= 27, avg=10.80, stdev= 5.48, samples=270 lat (usec) : 50=0.20%, 100=3.19%, 250=0.46%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.30%, 4=4.43%, 10=7.26%, 20=8.56%, 50=36.23% lat (msec) : 100=26.92%, 250=8.07%, 500=0.26% cpu : usr=0.07%, sys=5.19%, ctx=6821, 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=146541: Mon Jun 1 13:57:24 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(6028KiB/139852msec) clat (usec): min=35, max=259623, avg=44956.76, stdev=33273.23 lat (usec): min=36, max=259625, avg=44962.17, stdev=33276.73 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 72], 10.00th=[ 10159], 20.00th=[ 21103], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 66323], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[156238], 99.50th=[185598], 99.90th=[248513], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 7, max= 136, per=25.11%, avg=42.93, stdev=21.13, samples=272 iops : min= 1, max= 34, avg=10.07, stdev= 5.32, samples=272 write: IOPS=11, BW=44.8KiB/s (45.8kB/s)(6260KiB/139852msec); 0 zone resets clat (usec): min=859, max=600796, avg=45914.70, stdev=49613.25 lat (usec): min=861, max=600799, avg=45917.49, stdev=49613.62 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1549], 10.00th=[ 2278], 20.00th=[ 5080], | 30.00th=[ 10290], 40.00th=[ 21627], 50.00th=[ 33424], 60.00th=[ 45876], | 70.00th=[ 59507], 80.00th=[ 79168], 90.00th=[105382], 95.00th=[129500], | 99.00th=[198181], 99.50th=[278922], 99.90th=[501220], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 6, max= 136, per=24.62%, avg=44.07, stdev=20.05, samples=275 iops : min= 1, max= 34, avg=10.36, stdev= 5.05, samples=275 lat (usec) : 50=0.42%, 100=3.35%, 250=0.52%, 500=0.10%, 1000=0.07% lat (msec) : 2=4.30%, 4=4.39%, 10=6.77%, 20=8.92%, 50=35.38% lat (msec) : 100=27.02%, 250=8.43%, 500=0.26%, 750=0.07% cpu : usr=0.08%, sys=4.96%, ctx=6707, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146542: Mon Jun 1 13:57:24 2026 read: IOPS=10, BW=43.8KiB/s (44.8kB/s)(6052KiB/138301msec) clat (usec): min=33, max=380944, avg=44868.05, stdev=34331.61 lat (usec): min=33, max=380945, avg=44870.83, stdev=34330.45 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 159], 20.00th=[ 20841], | 30.00th=[ 26084], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[147850], 99.50th=[185598], 99.90th=[248513], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 7, max= 111, per=25.73%, avg=44.00, stdev=19.95, samples=268 iops : min= 1, max= 27, avg=10.34, stdev= 5.02, samples=268 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6236KiB/138301msec); 0 zone resets clat (usec): min=1063, max=517159, avg=45038.10, stdev=48071.27 lat (usec): min=1065, max=517161, avg=45043.28, stdev=48078.97 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1549], 10.00th=[ 2245], 20.00th=[ 5407], | 30.00th=[ 10290], 40.00th=[ 22152], 50.00th=[ 33162], 60.00th=[ 44303], | 70.00th=[ 57934], 80.00th=[ 74974], 90.00th=[105382], 95.00th=[130548], | 99.00th=[208667], 99.50th=[240124], 99.90th=[480248], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 6, max= 111, per=24.90%, avg=44.57, stdev=19.86, samples=272 iops : min= 1, max= 27, avg=10.49, stdev= 5.01, samples=272 lat (usec) : 50=0.62%, 100=4.20%, 250=0.29%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.33%, 4=4.10%, 10=6.87%, 20=8.37%, 50=35.74% lat (msec) : 100=26.63%, 250=8.37%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=5.12%, ctx=6704, 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=172KiB/s (176kB/s), 42.9KiB/s-43.9KiB/s (43.0kB/s-44.9kB/s), io=23.4MiB (24.6MB), run=136511-139852msec WRITE: bw=180KiB/s (184kB/s), 44.8KiB/s-46.1KiB/s (45.8kB/s-47.2kB/s), io=24.6MiB (25.7MB), run=136511-139852msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146534: Mon Jun 1 13:59:38 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(5992KiB/273990msec) clat (msec): min=6, max=511, avg=40.89, stdev=43.37 lat (msec): min=6, max=511, avg=40.89, stdev=43.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 115], | 99.00th=[ 224], 99.50th=[ 257], 99.90th=[ 481], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 103, per=27.91%, avg=24.28, stdev=16.68, samples=476 iops : min= 1, max= 25, avg= 5.46, stdev= 4.20, samples=476 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6296KiB/273991msec); 0 zone resets clat (msec): min=35, max=612, avg=134.95, stdev=68.24 lat (msec): min=35, max=612, avg=134.95, stdev=68.24 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 105], 50.00th=[ 116], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 228], 95.00th=[ 268], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 55, per=25.01%, avg=22.76, stdev=11.09, samples=532 iops : min= 1, max= 13, avg= 5.06, stdev= 2.83, samples=532 lat (msec) : 10=2.31%, 20=14.03%, 50=21.58%, 100=25.68%, 250=32.75% lat (msec) : 500=3.48%, 750=0.16% cpu : usr=0.04%, sys=1.41%, ctx=5467, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146535: Mon Jun 1 13:59:38 2026 read: IOPS=5, BW=21.6KiB/s (22.2kB/s)(5940KiB/274473msec) clat (msec): min=6, max=610, avg=40.72, stdev=44.82 lat (msec): min=6, max=610, avg=40.72, stdev=44.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 121], | 99.00th=[ 220], 99.50th=[ 271], 99.90th=[ 550], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 6, max= 87, per=28.33%, avg=24.65, stdev=16.05, samples=465 iops : min= 1, max= 21, avg= 5.54, stdev= 4.07, samples=465 write: IOPS=5, BW=23.1KiB/s (23.7kB/s)(6348KiB/274473msec); 0 zone resets clat (msec): min=35, max=602, avg=134.62, stdev=67.94 lat (msec): min=35, max=602, avg=134.63, stdev=67.94 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 224], 95.00th=[ 271], | 99.00th=[ 380], 99.50th=[ 422], 99.90th=[ 542], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 56, per=25.10%, avg=22.84, stdev=11.23, samples=535 iops : min= 1, max= 14, avg= 5.08, stdev= 2.87, samples=535 lat (msec) : 10=2.15%, 20=14.91%, 50=21.29%, 100=25.81%, 250=32.03% lat (msec) : 500=3.65%, 750=0.16% cpu : usr=0.05%, sys=1.45%, ctx=5409, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146536: Mon Jun 1 13:59:38 2026 read: IOPS=5, BW=21.0KiB/s (22.5kB/s)(6028KiB/274191msec) clat (msec): min=6, max=559, avg=41.77, stdev=38.80 lat (msec): min=6, max=559, avg=41.77, stdev=38.80 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 87], 95.00th=[ 118], | 99.00th=[ 178], 99.50th=[ 211], 99.90th=[ 330], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 103, per=27.65%, avg=24.05, stdev=16.79, samples=484 iops : min= 1, max= 25, avg= 5.39, stdev= 4.24, samples=484 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6260KiB/274191msec); 0 zone resets clat (msec): min=37, max=823, avg=134.77, stdev=69.76 lat (msec): min=37, max=823, avg=134.78, stdev=69.76 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 131], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 226], 95.00th=[ 268], | 99.00th=[ 372], 99.50th=[ 409], 99.90th=[ 527], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 56, per=24.85%, avg=22.61, stdev=11.39, samples=533 iops : min= 1, max= 14, avg= 5.03, stdev= 2.91, samples=533 lat (msec) : 10=1.95%, 20=12.73%, 50=22.27%, 100=27.38%, 250=32.06% lat (msec) : 500=3.48%, 750=0.10%, 1000=0.03% cpu : usr=0.03%, sys=1.45%, ctx=5589, 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=146537: Mon Jun 1 13:59:38 2026 read: IOPS=5, BW=22.2KiB/s (22.8kB/s)(6052KiB/272378msec) clat (msec): min=5, max=357, avg=39.34, stdev=38.31 lat (msec): min=5, max=357, avg=39.35, stdev=38.31 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=[ 42], 80.00th=[ 54], 90.00th=[ 82], 95.00th=[ 114], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 279], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 126, per=28.98%, avg=25.21, stdev=17.08, samples=464 iops : min= 1, max= 31, avg= 5.68, stdev= 4.32, samples=464 write: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6236KiB/272378msec); 0 zone resets clat (msec): min=34, max=739, avg=136.32, stdev=71.05 lat (msec): min=34, max=739, avg=136.32, stdev=71.05 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 93], 40.00th=[ 106], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 224], 95.00th=[ 279], | 99.00th=[ 363], 99.50th=[ 418], 99.90th=[ 600], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 6, max= 56, per=24.98%, avg=22.73, stdev=11.10, samples=528 iops : min= 1, max= 14, avg= 5.05, stdev= 2.83, samples=528 lat (msec) : 10=2.57%, 20=15.43%, 50=20.96%, 100=25.52%, 250=31.84% lat (msec) : 500=3.52%, 750=0.16% cpu : usr=0.05%, sys=1.43%, ctx=5442, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=87.5KiB/s (89.6kB/s), 21.6KiB/s-22.2KiB/s (22.2kB/s-22.8kB/s), io=23.4MiB (24.6MB), run=272378-274473msec WRITE: bw=91.6KiB/s (93.8kB/s), 22.8KiB/s-23.1KiB/s (23.4kB/s-23.7kB/s), io=24.6MiB (25.7MB), run=272378-274473msec 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=146596: Mon Jun 1 14:00:22 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(5920KiB/34626msec) clat (usec): min=26, max=385723, avg=49819.66, stdev=49788.96 lat (usec): min=27, max=385724, avg=49824.47, stdev=49787.69 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 104], | 30.00th=[ 26870], 40.00th=[ 33817], 50.00th=[ 42206], 60.00th=[ 51643], | 70.00th=[ 63701], 80.00th=[ 76022], 90.00th=[103285], 95.00th=[129500], | 99.00th=[270533], 99.50th=[379585], 99.90th=[383779], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 31, max= 479, per=24.45%, avg=168.49, stdev=80.84, samples=67 iops : min= 1, max= 29, avg= 9.73, stdev= 5.09, samples=67 write: IOPS=11, BW=184KiB/s (188kB/s)(6368KiB/34626msec); 0 zone resets clat (usec): min=1449, max=434032, avg=40021.22, stdev=47395.86 lat (usec): min=1451, max=434036, avg=40026.83, stdev=47400.43 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1909], 10.00th=[ 2311], 20.00th=[ 4359], | 30.00th=[ 7439], 40.00th=[ 12780], 50.00th=[ 21365], 60.00th=[ 34341], | 70.00th=[ 49021], 80.00th=[ 72877], 90.00th=[105382], 95.00th=[125305], | 99.00th=[196084], 99.50th=[235930], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 31, max= 447, per=25.63%, avg=185.79, stdev=87.39, samples=66 iops : min= 1, max= 27, avg=10.83, stdev= 5.54, samples=66 lat (usec) : 50=1.69%, 100=7.68%, 250=0.91%, 500=0.26%, 750=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=3.12%, 4=7.03%, 10=8.33%, 20=8.59%, 50=26.82% lat (msec) : 100=23.05%, 250=11.33%, 500=0.65% cpu : usr=0.06%, sys=4.97%, ctx=1348, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146597: Mon Jun 1 14:00:22 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34559msec) clat (usec): min=36, max=301989, avg=49882.59, stdev=44683.48 lat (usec): min=36, max=301990, avg=49884.04, stdev=44683.64 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 110], | 30.00th=[ 26608], 40.00th=[ 34866], 50.00th=[ 45351], 60.00th=[ 55837], | 70.00th=[ 65799], 80.00th=[ 79168], 90.00th=[ 99091], 95.00th=[127402], | 99.00th=[206570], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 43, max= 343, per=24.14%, avg=166.30, stdev=71.89, samples=67 iops : min= 2, max= 21, avg= 9.60, stdev= 4.54, samples=67 write: IOPS=11, BW=189KiB/s (194kB/s)(6544KiB/34559msec); 0 zone resets clat (usec): min=1512, max=433815, avg=40144.15, stdev=48368.38 lat (usec): min=1515, max=433816, avg=40146.71, stdev=48368.10 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1827], 10.00th=[ 2114], 20.00th=[ 4228], | 30.00th=[ 7111], 40.00th=[ 11207], 50.00th=[ 20841], 60.00th=[ 34866], | 70.00th=[ 51643], 80.00th=[ 71828], 90.00th=[101188], 95.00th=[131597], | 99.00th=[185598], 99.50th=[212861], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 31, max= 479, per=25.97%, avg=188.27, stdev=93.97, samples=67 iops : min= 1, max= 29, avg=11.00, stdev= 5.90, samples=67 lat (usec) : 50=1.69%, 100=7.55%, 250=1.04%, 500=0.13% lat (msec) : 2=4.82%, 4=5.34%, 10=9.90%, 20=7.68%, 50=24.35% lat (msec) : 100=27.73%, 250=9.24%, 500=0.52% cpu : usr=0.08%, sys=5.08%, ctx=1457, 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=146598: Mon Jun 1 14:00:22 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34750msec) clat (usec): min=36, max=366893, avg=50549.71, stdev=43504.06 lat (usec): min=37, max=366894, avg=50551.05, stdev=43504.11 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 676], | 30.00th=[ 29230], 40.00th=[ 39060], 50.00th=[ 46400], 60.00th=[ 54789], | 70.00th=[ 67634], 80.00th=[ 82314], 90.00th=[100140], 95.00th=[119014], | 99.00th=[168821], 99.50th=[362808], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 31, max= 534, per=26.32%, avg=181.34, stdev=81.60, samples=67 iops : min= 1, max= 33, avg=10.57, stdev= 5.21, samples=67 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34750msec); 0 zone resets clat (usec): min=1235, max=486024, avg=39289.06, stdev=46053.86 lat (usec): min=1238, max=486026, avg=39291.97, stdev=46053.64 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1909], 10.00th=[ 2671], 20.00th=[ 6194], | 30.00th=[ 10159], 40.00th=[ 14484], 50.00th=[ 22676], 60.00th=[ 34341], | 70.00th=[ 49021], 80.00th=[ 66323], 90.00th=[ 92799], 95.00th=[123208], | 99.00th=[183501], 99.50th=[210764], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 31, max= 384, per=23.69%, avg=171.72, stdev=84.36, samples=67 iops : min= 1, max= 24, avg= 9.94, stdev= 5.36, samples=67 lat (usec) : 50=1.43%, 100=6.90%, 250=1.56%, 500=0.26%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=3.12%, 4=3.39%, 10=8.59%, 20=9.90%, 50=26.56% lat (msec) : 100=28.91%, 250=8.59%, 500=0.39% cpu : usr=0.09%, sys=4.81%, ctx=1463, 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=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=146599: Mon Jun 1 14:00:22 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(6032KiB/34135msec) clat (usec): min=34, max=584650, avg=49679.23, stdev=49543.54 lat (usec): min=35, max=584650, avg=49680.95, stdev=49543.50 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 82], | 30.00th=[ 26870], 40.00th=[ 36963], 50.00th=[ 46924], 60.00th=[ 54789], | 70.00th=[ 66847], 80.00th=[ 79168], 90.00th=[100140], 95.00th=[113771], | 99.00th=[170918], 99.50th=[371196], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 31, max= 475, per=25.43%, avg=175.24, stdev=81.39, samples=66 iops : min= 1, max= 29, avg=10.17, stdev= 5.14, samples=66 write: IOPS=11, BW=183KiB/s (188kB/s)(6256KiB/34135msec); 0 zone resets clat (usec): min=1456, max=387250, avg=39197.63, stdev=46347.69 lat (usec): min=1457, max=387252, avg=39200.25, stdev=46347.52 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1844], 10.00th=[ 2606], 20.00th=[ 4883], | 30.00th=[ 9503], 40.00th=[ 14615], 50.00th=[ 24511], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 99091], 95.00th=[131597], | 99.00th=[200279], 99.50th=[295699], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 31, max= 447, per=25.04%, avg=181.52, stdev=94.27, samples=66 iops : min= 1, max= 27, avg=10.58, stdev= 5.97, samples=66 lat (usec) : 50=1.04%, 100=9.51%, 250=1.04% lat (msec) : 2=3.39%, 4=5.86%, 10=6.90%, 20=8.72%, 50=26.95% lat (msec) : 100=26.56%, 250=9.51%, 500=0.39%, 750=0.13% cpu : usr=0.07%, sys=5.01%, ctx=1326, 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=689KiB/s (706kB/s), 166KiB/s-180KiB/s (170kB/s-184kB/s), io=23.4MiB (24.5MB), run=34135-34750msec WRITE: bw=725KiB/s (743kB/s), 174KiB/s-189KiB/s (178kB/s-194kB/s), io=24.6MiB (25.8MB), run=34135-34750msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146601: Mon Jun 1 14:01:11 2026 read: IOPS=4, BW=72.1KiB/s (73.8kB/s)(5920KiB/82161msec) clat (msec): min=7, max=356, avg=46.85, stdev=43.67 lat (msec): min=7, max=356, avg=46.85, stdev=43.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 63], 90.00th=[ 94], 95.00th=[ 144], | 99.00th=[ 228], 99.50th=[ 253], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 27, max= 416, per=28.77%, avg=82.28, stdev=59.46, samples=141 iops : min= 1, max= 26, avg= 4.38, stdev= 3.80, samples=141 write: IOPS=4, BW=77.5KiB/s (79.4kB/s)(6368KiB/82161msec); 0 zone resets clat (msec): min=60, max=617, avg=161.80, stdev=85.93 lat (msec): min=60, max=617, avg=161.81, stdev=85.94 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 79], 10.00th=[ 86], 20.00th=[ 100], | 30.00th=[ 109], 40.00th=[ 124], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 209], 90.00th=[ 275], 95.00th=[ 338], | 99.00th=[ 531], 99.50th=[ 558], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 30, max= 160, per=26.20%, avg=78.85, stdev=35.00, samples=158 iops : min= 1, max= 10, avg= 4.16, stdev= 2.29, samples=158 lat (msec) : 10=0.52%, 20=10.42%, 50=23.70%, 100=19.79%, 250=38.93% lat (msec) : 500=6.12%, 750=0.52% cpu : usr=0.03%, sys=1.30%, ctx=1436, 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=146602: Mon Jun 1 14:01:11 2026 read: IOPS=4, BW=68.7KiB/s (70.3kB/s)(5744KiB/83637msec) clat (msec): min=8, max=381, avg=46.44, stdev=43.66 lat (msec): min=8, max=381, avg=46.44, stdev=43.66 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 60], 90.00th=[ 103], 95.00th=[ 148], | 99.00th=[ 226], 99.50th=[ 245], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 27, max= 320, per=30.25%, avg=86.53, stdev=56.94, samples=131 iops : min= 1, max= 20, avg= 4.66, stdev= 3.64, samples=131 write: IOPS=4, BW=78.2KiB/s (80.1kB/s)(6544KiB/83637msec); 0 zone resets clat (msec): min=51, max=623, avg=162.80, stdev=86.58 lat (msec): min=51, max=623, avg=162.81, stdev=86.58 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 95], | 30.00th=[ 112], 40.00th=[ 124], 50.00th=[ 142], 60.00th=[ 161], | 70.00th=[ 180], 80.00th=[ 220], 90.00th=[ 271], 95.00th=[ 338], | 99.00th=[ 510], 99.50th=[ 542], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 30, max= 191, per=26.99%, avg=81.25, stdev=36.86, samples=158 iops : min= 1, max= 11, avg= 4.31, stdev= 2.38, samples=158 lat (msec) : 10=0.65%, 20=9.38%, 50=24.35%, 100=19.53%, 250=39.19% lat (msec) : 500=6.12%, 750=0.78% cpu : usr=0.03%, sys=1.25%, ctx=1447, 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=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=146603: Mon Jun 1 14:01:11 2026 read: IOPS=4, BW=77.9KiB/s (79.8kB/s)(6256KiB/80283msec) clat (msec): min=5, max=505, avg=46.78, stdev=48.84 lat (msec): min=5, max=505, avg=46.79, stdev=48.84 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 55], 90.00th=[ 91], 95.00th=[ 130], | 99.00th=[ 264], 99.50th=[ 317], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 29, max= 319, per=31.43%, avg=89.88, stdev=66.17, samples=137 iops : min= 1, max= 19, avg= 4.85, stdev= 4.18, samples=137 write: IOPS=4, BW=75.1KiB/s (76.9kB/s)(6032KiB/80283msec); 0 zone resets clat (msec): min=59, max=483, avg=163.85, stdev=80.29 lat (msec): min=59, max=483, avg=163.86, stdev=80.28 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 78], 10.00th=[ 87], 20.00th=[ 101], | 30.00th=[ 113], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 180], 80.00th=[ 218], 90.00th=[ 279], 95.00th=[ 334], | 99.00th=[ 430], 99.50th=[ 464], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 27, max= 160, per=25.02%, avg=75.31, stdev=34.68, samples=156 iops : min= 1, max= 10, avg= 3.92, stdev= 2.27, samples=156 lat (msec) : 10=0.65%, 20=9.11%, 50=28.91%, 100=17.06%, 250=36.98% lat (msec) : 500=7.16%, 750=0.13% cpu : usr=0.02%, sys=1.30%, ctx=1453, 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=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=146604: Mon Jun 1 14:01:11 2026 read: IOPS=4, BW=73.9KiB/s (75.7kB/s)(6032KiB/81576msec) clat (msec): min=8, max=378, avg=47.65, stdev=49.16 lat (msec): min=8, max=378, avg=47.65, stdev=49.16 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 45], 80.00th=[ 65], 90.00th=[ 112], 95.00th=[ 148], | 99.00th=[ 230], 99.50th=[ 372], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 29, max= 256, per=30.50%, avg=87.22, stdev=59.78, samples=135 iops : min= 1, max= 16, avg= 4.70, stdev= 3.79, samples=135 write: IOPS=4, BW=76.7KiB/s (78.5kB/s)(6256KiB/81576msec); 0 zone resets clat (msec): min=53, max=618, avg=161.24, stdev=83.84 lat (msec): min=53, max=618, avg=161.25, stdev=83.84 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 75], 10.00th=[ 84], 20.00th=[ 97], | 30.00th=[ 109], 40.00th=[ 127], 50.00th=[ 144], 60.00th=[ 157], | 70.00th=[ 174], 80.00th=[ 205], 90.00th=[ 279], 95.00th=[ 326], | 99.00th=[ 485], 99.50th=[ 550], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 29, max= 160, per=27.07%, avg=81.49, stdev=35.96, samples=151 iops : min= 1, max= 10, avg= 4.32, stdev= 2.37, samples=151 lat (msec) : 10=0.65%, 20=12.37%, 50=23.96%, 100=17.45%, 250=38.80% lat (msec) : 500=6.38%, 750=0.39% cpu : usr=0.03%, sys=1.22%, ctx=1533, 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=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=286KiB/s (293kB/s), 68.7KiB/s-77.9KiB/s (70.3kB/s-79.8kB/s), io=23.4MiB (24.5MB), run=80283-83637msec WRITE: bw=301KiB/s (309kB/s), 75.1KiB/s-78.2KiB/s (76.9kB/s-80.1kB/s), io=24.6MiB (25.8MB), run=80283-83637msec 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=146639: Mon Jun 1 14:01:28 2026 read: IOPS=1, BW=1820KiB/s (1864kB/s)(7168KiB/3938msec) clat (msec): min=78, max=1421, avg=396.18, stdev=459.31 lat (msec): min=78, max=1421, avg=396.18, stdev=459.31 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 186], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 255], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 330], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1984, max= 2048, per=57.26%, avg=2010.83, stdev=23.16, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 write: IOPS=1, BW=1300KiB/s (1331kB/s)(5120KiB/3938msec); 0 zone resets clat (msec): min=85, max=413, avg=208.43, stdev=144.51 lat (msec): min=85, max=413, avg=208.51, stdev=144.50 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 144], 60.00th=[ 144], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 1984, max= 4047, per=54.39%, avg=2674.33, stdev=1188.77, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.03%, sys=12.90%, ctx=434, 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=146640: Mon Jun 1 14:01:28 2026 read: IOPS=0, BW=361KiB/s (369kB/s)(2048KiB/5676msec) clat (msec): min=180, max=189, avg=184.84, stdev= 6.08 lat (msec): min=180, max=189, avg=184.85, stdev= 6.10 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 190], 80.00th=[ 190], 90.00th=[ 190], 95.00th=[ 190], | 99.00th=[ 190], 99.50th=[ 190], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 1943, max= 2027, per=56.52%, avg=1985.00, stdev=59.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1804KiB/s (1847kB/s)(10.0MiB/5676msec); 0 zone resets clat (msec): min=85, max=2434, avg=525.93, stdev=707.69 lat (msec): min=85, max=2435, avg=526.02, stdev=707.70 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 99], | 30.00th=[ 107], 40.00th=[ 134], 50.00th=[ 275], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 584], 90.00th=[ 760], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1943, max= 6131, per=61.90%, avg=3043.83, stdev=1727.85, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.83, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=9.07%, ctx=188, 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=146641: Mon Jun 1 14:01:28 2026 read: IOPS=1, BW=1054KiB/s (1079kB/s)(6144KiB/5831msec) clat (usec): min=584, max=323438, avg=185125.62, stdev=104997.02 lat (usec): min=585, max=323438, avg=185126.82, stdev=104996.88 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[164627], | 30.00th=[164627], 40.00th=[200279], 50.00th=[200279], 60.00th=[206570], | 70.00th=[214959], 80.00th=[214959], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 2043, max= 4096, per=95.15%, avg=3341.67, stdev=1129.57, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1054KiB/s (1079kB/s)(6144KiB/5831msec); 0 zone resets clat (msec): min=244, max=2379, avg=733.02, stdev=810.92 lat (msec): min=245, max=2379, avg=733.17, stdev=810.92 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 443], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 1432, max= 2043, per=38.89%, avg=1912.00, stdev=238.00, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=41.67%, >=2000=8.33% cpu : usr=0.03%, sys=8.75%, ctx=195, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146643: Mon Jun 1 14:01:28 2026 read: IOPS=1, BW=1199KiB/s (1227kB/s)(5120KiB/4272msec) clat (usec): min=539, max=291315, avg=203001.93, stdev=115432.89 lat (usec): min=541, max=291317, avg=203003.12, stdev=115432.85 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[233833], 40.00th=[233833], 50.00th=[238027], 60.00th=[238027], | 70.00th=[250610], 80.00th=[250610], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 1943, max= 4031, per=75.90%, avg=2665.67, stdev=1183.09, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1678KiB/s (1718kB/s)(7168KiB/4272msec); 0 zone resets clat (msec): min=124, max=1685, avg=440.09, stdev=554.02 lat (msec): min=124, max=1685, avg=440.18, stdev=554.03 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 184], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 271], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 330], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 1383, max= 4047, per=57.51%, avg=2828.00, stdev=1339.85, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.07%, sys=12.71%, ctx=228, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3512KiB/s (3597kB/s), 361KiB/s-1820KiB/s (369kB/s-1864kB/s), io=20.0MiB (20.0MB), run=3938-5831msec WRITE: bw=4917KiB/s (5035kB/s), 1054KiB/s-1804KiB/s (1079kB/s-1847kB/s), io=28.0MiB (29.4MB), run=3938-5831msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146642: Mon Jun 1 14:01:28 2026 read: IOPS=1, BW=1372KiB/s (1405kB/s)(7168KiB/5223msec) clat (msec): min=111, max=1864, avg=463.86, stdev=621.12 lat (msec): min=111, max=1864, avg=463.86, stdev=621.12 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 205], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 232], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 321], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 1570, max= 4087, per=87.01%, avg=2844.25, stdev=1255.86, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=980KiB/s (1004kB/s)(5120KiB/5223msec); 0 zone resets clat (msec): min=261, max=384, avg=342.58, stdev=54.03 lat (msec): min=261, max=384, avg=342.65, stdev=54.05 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2000, max= 3953, per=58.23%, avg=2665.33, stdev=1115.36, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=58.33%, 2000=8.33% cpu : usr=0.00%, sys=3.73%, ctx=116, 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=146644: Mon Jun 1 14:01:28 2026 read: IOPS=0, BW=333KiB/s (341kB/s)(2048KiB/6157msec) clat (msec): min=118, max=360, avg=239.66, stdev=171.40 lat (msec): min=118, max=360, avg=239.67, stdev=171.40 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2000, max= 2027, per=61.59%, avg=2013.50, stdev=19.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1663KiB/s (1703kB/s)(10.0MiB/6157msec); 0 zone resets clat (msec): min=174, max=1382, avg=531.15, stdev=369.67 lat (msec): min=174, max=1383, avg=531.23, stdev=369.67 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 228], | 30.00th=[ 292], 40.00th=[ 351], 50.00th=[ 372], 60.00th=[ 422], | 70.00th=[ 506], 80.00th=[ 701], 90.00th=[ 885], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1872, max= 4063, per=50.20%, avg=2297.57, stdev=780.84, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.96%, ctx=104, 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=146645: Mon Jun 1 14:01:28 2026 read: IOPS=1, BW=1133KiB/s (1160kB/s)(6144KiB/5424msec) clat (msec): min=106, max=375, avg=210.50, stdev=116.18 lat (msec): min=106, max=375, avg=210.50, stdev=116.18 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 190], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1872, max= 4000, per=76.00%, avg=2484.50, stdev=1013.21, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1133KiB/s (1160kB/s)(6144KiB/5424msec); 0 zone resets clat (msec): min=283, max=2013, avg=674.53, stdev=668.25 lat (msec): min=283, max=2013, avg=674.62, stdev=668.25 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 430], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 1381, max= 2043, per=41.69%, avg=1908.33, stdev=259.39, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=3.19%, ctx=75, 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=146646: Mon Jun 1 14:01:28 2026 read: IOPS=0, BW=817KiB/s (837kB/s)(5120KiB/6263msec) clat (msec): min=120, max=239, avg=172.31, stdev=51.78 lat (msec): min=120, max=239, avg=172.31, stdev=51.78 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 211], 80.00th=[ 211], 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= 1976, max= 6071, per=100.00%, avg=4023.50, stdev=2895.60, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1144KiB/s (1172kB/s)(7168KiB/6263msec); 0 zone resets clat (msec): min=220, max=2237, avg=723.60, stdev=700.11 lat (msec): min=220, max=2237, avg=723.90, stdev=700.04 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 245], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 535], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 844], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 1872, max= 2043, per=43.47%, avg=1989.80, stdev=70.67, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=58.33%, 500=8.33%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.05%, sys=2.16%, ctx=146, 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=3270KiB/s (3348kB/s), 333KiB/s-1372KiB/s (341kB/s-1405kB/s), io=20.0MiB (20.0MB), run=5223-6263msec WRITE: bw=4578KiB/s (4688kB/s), 980KiB/s-1663KiB/s (1004kB/s-1703kB/s), io=28.0MiB (29.4MB), run=5223-6263msec 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=146657: Mon Jun 1 14:01:42 2026 read: IOPS=1, BW=5124KiB/s (5247kB/s)(12.0MiB/2398msec) clat (msec): min=724, max=838, avg=775.47, stdev=57.92 lat (msec): min=724, max=838, avg=775.47, stdev=57.92 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 835], 80.00th=[ 835], 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= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.06%, ctx=201, 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=146658: Mon Jun 1 14:01:42 2026 read: IOPS=0, BW=1192KiB/s (1221kB/s)(4096KiB/3436msec) clat (nsec): min=836411k, max=836411k, avg=836411085.00, stdev= 0.00 lat (nsec): min=836413k, max=836413k, avg=836413107.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 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= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2384KiB/s (2441kB/s)(8192KiB/3436msec); 0 zone resets clat (msec): min=783, max=1748, avg=1265.84, stdev=682.19 lat (msec): min=783, max=1748, avg=1266.17, stdev=682.20 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 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= 8126, max= 8126, per=85.21%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.98%, ctx=137, 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=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=146659: Mon Jun 1 14:01:42 2026 write: IOPS=0, BW=3698KiB/s (3787kB/s)(12.0MiB/3323msec); 0 zone resets clat (msec): min=430, max=1507, avg=1091.95, stdev=579.33 lat (msec): min=430, max=1509, avg=1092.75, stdev=579.95 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8143, max= 8159, per=85.48%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.40%, ctx=36, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146660: Mon Jun 1 14:01:42 2026 write: IOPS=1, BW=5013KiB/s (5134kB/s)(12.0MiB/2451msec); 0 zone resets clat (msec): min=681, max=930, avg=784.31, stdev=129.93 lat (msec): min=681, max=930, avg=784.64, stdev=129.91 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8126, max= 8143, per=85.30%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.08%, sys=6.24%, ctx=57, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4768KiB/s (4883kB/s), 1192KiB/s-5124KiB/s (1221kB/s-5247kB/s), io=16.0MiB (16.8MB), run=2398-3436msec WRITE: bw=9537KiB/s (9766kB/s), 2384KiB/s-5013KiB/s (2441kB/s-5134kB/s), io=32.0MiB (33.6MB), run=2451-3436msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146653: Mon Jun 1 14:01:43 2026 read: IOPS=1, BW=4324KiB/s (4427kB/s)(12.0MiB/2842msec) clat (msec): min=288, max=1341, avg=928.76, stdev=561.75 lat (msec): min=288, max=1341, avg=928.76, stdev=561.75 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8015, max= 8110, per=100.00%, avg=8062.50, stdev=67.18, 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=0.00%, sys=2.68%, ctx=45, 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=146654: Mon Jun 1 14:01:43 2026 read: IOPS=0, BW=1686KiB/s (1727kB/s)(4096KiB/2429msec) clat (nsec): min=539584k, max=539584k, avg=539583810.00, stdev= 0.00 lat (nsec): min=539587k, max=539587k, avg=539586650.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 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= 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=3373KiB/s (3454kB/s)(8192KiB/2429msec); 0 zone resets clat (msec): min=660, max=1060, avg=860.26, stdev=282.58 lat (msec): min=660, max=1060, avg=860.50, stdev=282.63 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, 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=4.49%, ctx=63, 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=146655: Mon Jun 1 14:01:43 2026 write: IOPS=0, BW=2981KiB/s (3053kB/s)(12.0MiB/4122msec); 0 zone resets clat (msec): min=294, max=2178, avg=1324.01, stdev=954.31 lat (msec): min=294, max=2179, avg=1324.40, stdev=954.45 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8078, max= 8094, per=100.00%, avg=8086.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.01%, ctx=42, 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=146656: Mon Jun 1 14:01:43 2026 write: IOPS=1, BW=5988KiB/s (6132kB/s)(12.0MiB/2052msec); 0 zone resets clat (msec): min=415, max=1024, avg=633.85, stdev=338.88 lat (msec): min=415, max=1024, avg=634.34, stdev=338.78 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.78%, 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=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=5765KiB/s (5903kB/s), 1686KiB/s-4324KiB/s (1727kB/s-4427kB/s), io=16.0MiB (16.8MB), run=2429-2842msec WRITE: bw=7950KiB/s (8140kB/s), 2981KiB/s-5988KiB/s (3053kB/s-6132kB/s), io=32.0MiB (33.6MB), run=2052-4122msec