== sanity test 398b: DIO and buffer IO race ============== 20:46:53 (1784940413) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.40088 s, 9.3 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=143976: Fri Jul 24 20:49:28 2026 read: IOPS=11, BW=44.3KiB/s (45.3kB/s)(5992KiB/135301msec) clat (usec): min=29, max=864874, avg=43800.09, stdev=37859.95 lat (usec): min=29, max=864876, avg=43807.47, stdev=37855.36 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 9765], 20.00th=[ 20317], | 30.00th=[ 26084], 40.00th=[ 31065], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 64226], 90.00th=[ 82314], 95.00th=[ 98042], | 99.00th=[147850], 99.50th=[181404], 99.90th=[341836], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 5, max= 111, per=25.34%, avg=44.35, stdev=19.39, samples=263 iops : min= 1, max= 27, avg=10.41, stdev= 4.87, samples=263 write: IOPS=11, BW=46.5KiB/s (47.7kB/s)(6296KiB/135301msec); 0 zone resets clat (usec): min=780, max=308275, avg=43853.36, stdev=44519.43 lat (usec): min=781, max=308277, avg=43874.19, stdev=44518.08 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1876], 20.00th=[ 4686], | 30.00th=[ 10552], 40.00th=[ 20841], 50.00th=[ 32637], 60.00th=[ 43779], | 70.00th=[ 56886], 80.00th=[ 76022], 90.00th=[104334], 95.00th=[128451], | 99.00th=[193987], 99.50th=[233833], 99.90th=[295699], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 103, per=25.45%, avg=46.57, stdev=19.19, samples=263 iops : min= 1, max= 25, avg=10.98, stdev= 4.82, samples=263 lat (usec) : 50=0.49%, 100=3.58%, 250=0.29%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.44%, 4=3.61%, 10=6.25%, 20=9.54%, 50=35.68% lat (msec) : 100=27.15%, 250=7.45%, 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=4.63%, ctx=6472, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143977: Fri Jul 24 20:49:28 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5940KiB/136609msec) clat (usec): min=26, max=657788, avg=44856.10, stdev=37236.72 lat (usec): min=26, max=657791, avg=44867.37, stdev=37240.01 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 8979], 20.00th=[ 20317], | 30.00th=[ 26084], 40.00th=[ 32113], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[177210], 99.50th=[208667], 99.90th=[304088], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 103, per=25.01%, avg=43.76, stdev=19.12, samples=264 iops : min= 1, max= 25, avg=10.27, stdev= 4.80, samples=264 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6348KiB/136609msec); 0 zone resets clat (usec): min=841, max=396562, avg=43694.82, stdev=45839.62 lat (usec): min=842, max=396564, avg=43697.54, stdev=45839.95 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 2180], 20.00th=[ 5342], | 30.00th=[ 9634], 40.00th=[ 20579], 50.00th=[ 31327], 60.00th=[ 41681], | 70.00th=[ 55837], 80.00th=[ 74974], 90.00th=[104334], 95.00th=[130548], | 99.00th=[204473], 99.50th=[242222], 99.90th=[283116], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 7, max= 119, per=25.21%, avg=46.13, stdev=20.99, samples=267 iops : min= 1, max= 29, avg=10.87, stdev= 5.29, samples=267 lat (usec) : 50=0.39%, 100=3.55%, 250=0.42%, 500=0.13%, 1000=0.10% lat (msec) : 2=4.88%, 4=3.97%, 10=7.13%, 20=9.34%, 50=35.77% lat (msec) : 100=26.17%, 250=7.81%, 500=0.29%, 750=0.03% cpu : usr=0.07%, sys=4.71%, ctx=6614, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=143979: Fri Jul 24 20:49:28 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(6028KiB/136943msec) clat (usec): min=34, max=245761, avg=43484.12, stdev=31718.72 lat (usec): min=34, max=245762, avg=43487.00, stdev=31718.84 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 10028], 20.00th=[ 20317], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 64750], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[149947], 99.50th=[177210], 99.90th=[227541], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=44.21, stdev=20.37, samples=266 iops : min= 1, max= 29, avg=10.38, stdev= 5.14, samples=266 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6260KiB/136943msec); 0 zone resets clat (usec): min=1006, max=750625, avg=45259.62, stdev=48744.75 lat (usec): min=1008, max=750630, avg=45270.06, stdev=48746.86 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 2073], 20.00th=[ 5080], | 30.00th=[ 10814], 40.00th=[ 22152], 50.00th=[ 33162], 60.00th=[ 45876], | 70.00th=[ 59507], 80.00th=[ 76022], 90.00th=[104334], 95.00th=[129500], | 99.00th=[196084], 99.50th=[221250], 99.90th=[400557], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 7, max= 111, per=24.88%, avg=45.53, stdev=19.36, samples=268 iops : min= 1, max= 27, avg=10.72, stdev= 4.87, samples=268 lat (usec) : 50=0.65%, 100=3.35%, 250=0.26%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.07% lat (msec) : 2=5.08%, 4=3.74%, 10=6.35%, 20=9.54%, 50=35.81% lat (msec) : 100=26.95%, 250=7.91%, 500=0.10%, 1000=0.03% cpu : usr=0.06%, sys=4.68%, ctx=6491, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143980: Fri Jul 24 20:49:28 2026 read: IOPS=11, BW=44.6KiB/s (45.6kB/s)(6052KiB/135773msec) clat (usec): min=30, max=413591, avg=43745.09, stdev=33768.20 lat (usec): min=30, max=413592, avg=43757.87, stdev=33762.25 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 169], 20.00th=[ 19006], | 30.00th=[ 26084], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53740], 80.00th=[ 65799], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[147850], 99.50th=[173016], 99.90th=[295699], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 7, max= 95, per=25.58%, avg=44.76, stdev=19.11, samples=263 iops : min= 1, max= 23, avg=10.52, stdev= 4.81, samples=263 write: IOPS=11, BW=45.9KiB/s (47.0kB/s)(6236KiB/135773msec); 0 zone resets clat (usec): min=1140, max=790513, avg=44277.06, stdev=47855.67 lat (usec): min=1141, max=790516, avg=44279.21, stdev=47855.36 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1369], 10.00th=[ 1811], 20.00th=[ 5080], | 30.00th=[ 10814], 40.00th=[ 22152], 50.00th=[ 32375], 60.00th=[ 44303], | 70.00th=[ 57934], 80.00th=[ 74974], 90.00th=[101188], 95.00th=[126354], | 99.00th=[191890], 99.50th=[227541], 99.90th=[354419], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 110, per=24.95%, avg=45.65, stdev=18.92, samples=265 iops : min= 1, max= 27, avg=10.74, stdev= 4.77, samples=265 lat (usec) : 50=0.62%, 100=4.17%, 250=0.26%, 500=0.10%, 750=0.07% lat (msec) : 2=5.47%, 4=3.39%, 10=6.12%, 20=9.60%, 50=35.48% lat (msec) : 100=26.95%, 250=7.49%, 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=4.78%, ctx=6544, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=175KiB/s (180kB/s), 43.5KiB/s-44.6KiB/s (44.5kB/s-45.6kB/s), io=23.4MiB (24.6MB), run=135301-136943msec WRITE: bw=184KiB/s (188kB/s), 45.7KiB/s-46.5KiB/s (46.8kB/s-47.7kB/s), io=24.6MiB (25.7MB), run=135301-136943msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143973: Fri Jul 24 20:51:41 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(5992KiB/267597msec) clat (msec): min=4, max=939, avg=38.14, stdev=44.17 lat (msec): min=4, max=939, avg=38.15, stdev=44.17 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 81], 95.00th=[ 113], | 99.00th=[ 188], 99.50th=[ 222], 99.90th=[ 456], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 111, per=28.75%, avg=25.30, stdev=17.09, samples=458 iops : min= 1, max= 27, avg= 5.70, stdev= 4.31, samples=458 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6296KiB/267597msec); 0 zone resets clat (msec): min=30, max=480, avg=133.37, stdev=67.17 lat (msec): min=30, max=480, avg=133.37, stdev=67.17 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 131], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 355], 99.50th=[ 418], 99.90th=[ 456], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 56, per=24.93%, avg=23.19, stdev=11.40, samples=523 iops : min= 1, max= 14, avg= 5.16, stdev= 2.92, samples=523 lat (msec) : 10=3.42%, 20=15.79%, 50=19.95%, 100=25.72%, 250=31.67% lat (msec) : 500=3.42%, 1000=0.03% cpu : usr=0.03%, sys=1.30%, ctx=5202, 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=143974: Fri Jul 24 20:51:41 2026 read: IOPS=5, BW=22.0KiB/s (22.5kB/s)(5940KiB/269917msec) clat (msec): min=5, max=680, avg=37.73, stdev=41.70 lat (msec): min=5, max=680, avg=37.73, stdev=41.70 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 114], | 99.00th=[ 205], 99.50th=[ 236], 99.90th=[ 409], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 87, per=28.30%, avg=24.91, stdev=16.38, samples=460 iops : min= 1, max= 21, avg= 5.60, stdev= 4.12, samples=460 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6348KiB/269917msec); 0 zone resets clat (msec): min=33, max=462, avg=134.45, stdev=68.00 lat (msec): min=33, max=462, avg=134.45, stdev=68.00 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 105], 50.00th=[ 118], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 224], 95.00th=[ 268], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 63, per=24.86%, avg=23.12, stdev=11.62, samples=527 iops : min= 1, max= 15, avg= 5.15, stdev= 2.98, samples=527 lat (msec) : 10=3.48%, 20=14.58%, 50=22.17%, 100=23.86%, 250=32.29% lat (msec) : 500=3.58%, 750=0.03% cpu : usr=0.03%, sys=1.32%, ctx=5433, 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=143975: Fri Jul 24 20:51:41 2026 read: IOPS=5, BW=22.4KiB/s (22.0kB/s)(6028KiB/268768msec) clat (msec): min=4, max=389, avg=39.29, stdev=39.68 lat (msec): min=4, max=389, avg=39.29, stdev=39.68 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 83], 95.00th=[ 120], | 99.00th=[ 207], 99.50th=[ 236], 99.90th=[ 355], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 104, per=27.94%, avg=24.59, stdev=16.97, samples=473 iops : min= 1, max= 26, avg= 5.52, stdev= 4.29, samples=473 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6260KiB/268768msec); 0 zone resets clat (msec): min=28, max=770, avg=133.58, stdev=70.71 lat (msec): min=28, max=770, avg=133.58, stdev=70.71 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 79], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 228], 95.00th=[ 268], | 99.00th=[ 376], 99.50th=[ 422], 99.90th=[ 542], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 56, per=25.08%, avg=23.33, stdev=11.61, samples=516 iops : min= 1, max= 14, avg= 5.20, stdev= 2.98, samples=516 lat (msec) : 10=3.19%, 20=14.65%, 50=21.35%, 100=25.98%, 250=31.18% lat (msec) : 500=3.52%, 750=0.10%, 1000=0.03% cpu : usr=0.03%, sys=1.32%, ctx=5318, 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=143978: Fri Jul 24 20:51:41 2026 read: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6052KiB/267794msec) clat (msec): min=4, max=398, avg=36.63, stdev=36.51 lat (msec): min=4, max=398, avg=36.63, stdev=36.51 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 104], | 99.00th=[ 167], 99.50th=[ 228], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 95, per=29.14%, avg=25.65, stdev=17.40, samples=456 iops : min= 1, max= 23, avg= 5.78, stdev= 4.40, samples=456 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6236KiB/267794msec); 0 zone resets clat (msec): min=31, max=779, avg=135.89, stdev=72.54 lat (msec): min=31, max=779, avg=135.89, stdev=72.54 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 228], 95.00th=[ 284], | 99.00th=[ 388], 99.50th=[ 451], 99.90th=[ 558], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 64, per=24.54%, avg=22.82, stdev=11.30, samples=526 iops : min= 1, max= 16, avg= 5.07, stdev= 2.91, samples=526 lat (msec) : 10=3.94%, 20=14.94%, 50=21.55%, 100=24.02%, 250=31.84% lat (msec) : 500=3.55%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.28%, ctx=5233, 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=88.0KiB/s (91.1kB/s), 22.0KiB/s-22.6KiB/s (22.5kB/s-23.1kB/s), io=23.4MiB (24.6MB), run=267597-269917msec WRITE: bw=93.1KiB/s (95.4kB/s), 23.3KiB/s-23.5KiB/s (23.8kB/s-24.1kB/s), io=24.6MiB (25.7MB), run=267597-269917msec 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=144037: Fri Jul 24 20:52:18 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(5920KiB/27711msec) clat (usec): min=27, max=305662, avg=38818.81, stdev=35018.48 lat (usec): min=27, max=305663, avg=38820.40, stdev=35018.56 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 133], | 30.00th=[ 21365], 40.00th=[ 30016], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 58983], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[149947], 99.50th=[283116], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 63, max= 465, per=24.59%, avg=212.43, stdev=83.67, samples=54 iops : min= 3, max= 29, avg=12.52, stdev= 5.31, samples=54 write: IOPS=14, BW=230KiB/s (235kB/s)(6368KiB/27711msec); 0 zone resets clat (usec): min=1099, max=199151, avg=33469.91, stdev=35125.73 lat (usec): min=1101, max=199153, avg=33476.90, stdev=35125.88 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2057], 10.00th=[ 2900], 20.00th=[ 5080], | 30.00th=[ 8160], 40.00th=[ 12911], 50.00th=[ 22152], 60.00th=[ 31065], | 70.00th=[ 42206], 80.00th=[ 56361], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[156238], 99.50th=[193987], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 56, max= 502, per=25.33%, avg=230.28, stdev=96.78, samples=54 iops : min= 3, max= 31, avg=13.65, stdev= 6.13, samples=54 lat (usec) : 50=0.91%, 100=8.20%, 250=0.78%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.21%, 4=6.12%, 10=10.55%, 20=9.24%, 50=33.59% lat (msec) : 100=23.83%, 250=3.91%, 500=0.26% cpu : usr=0.06%, sys=5.64%, ctx=1540, 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=144038: Fri Jul 24 20:52:18 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5744KiB/26927msec) clat (usec): min=40, max=176929, avg=38335.19, stdev=29477.45 lat (usec): min=41, max=176930, avg=38347.20, stdev=29471.98 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 143], | 30.00th=[ 24249], 40.00th=[ 29754], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 61080], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[130548], 99.50th=[133694], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 28, max= 352, per=25.17%, avg=217.44, stdev=82.30, samples=52 iops : min= 1, max= 22, avg=12.83, stdev= 5.21, samples=52 write: IOPS=15, BW=243KiB/s (249kB/s)(6544KiB/26927msec); 0 zone resets clat (usec): min=1438, max=232700, avg=32113.01, stdev=36057.62 lat (usec): min=1439, max=232703, avg=32115.31, stdev=36057.72 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1926], 10.00th=[ 3294], 20.00th=[ 4752], | 30.00th=[ 6456], 40.00th=[ 10028], 50.00th=[ 16909], 60.00th=[ 28705], | 70.00th=[ 40633], 80.00th=[ 57410], 90.00th=[ 80217], 95.00th=[107480], | 99.00th=[154141], 99.50th=[164627], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 63, max= 499, per=26.67%, avg=242.45, stdev=97.09, samples=53 iops : min= 3, max= 31, avg=14.42, stdev= 6.16, samples=53 lat (usec) : 50=0.91%, 100=7.42%, 250=1.17%, 500=0.39% lat (msec) : 2=3.39%, 4=3.78%, 10=14.32%, 20=8.98%, 50=32.16% lat (msec) : 100=23.31%, 250=4.17% cpu : usr=0.07%, sys=6.06%, ctx=1495, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144039: Fri Jul 24 20:52:18 2026 read: IOPS=14, BW=230KiB/s (236kB/s)(6256KiB/27186msec) clat (usec): min=37, max=202207, avg=38004.45, stdev=31842.02 lat (usec): min=38, max=202208, avg=38008.88, stdev=31842.54 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 237], | 30.00th=[ 23200], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 49021], 80.00th=[ 58983], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[170918], 99.50th=[196084], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 95, max= 384, per=26.89%, avg=232.32, stdev=79.48, samples=53 iops : min= 5, max= 24, avg=13.75, stdev= 5.03, samples=53 write: IOPS=13, BW=222KiB/s (227kB/s)(6032KiB/27186msec); 0 zone resets clat (usec): min=1107, max=178253, avg=32537.84, stdev=33112.04 lat (usec): min=1110, max=178255, avg=32573.31, stdev=33154.99 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1926], 10.00th=[ 2540], 20.00th=[ 4686], | 30.00th=[ 7242], 40.00th=[ 11863], 50.00th=[ 20579], 60.00th=[ 32900], | 70.00th=[ 44303], 80.00th=[ 57934], 90.00th=[ 79168], 95.00th=[ 93848], | 99.00th=[139461], 99.50th=[166724], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 62, max= 380, per=24.25%, avg=220.43, stdev=79.49, samples=53 iops : min= 3, max= 23, avg=13.00, stdev= 5.02, samples=53 lat (usec) : 50=1.04%, 100=8.33%, 250=0.91%, 500=0.13%, 1000=0.52% lat (msec) : 2=3.26%, 4=5.99%, 10=9.51%, 20=8.46%, 50=34.90% lat (msec) : 100=23.18%, 250=3.78% cpu : usr=0.07%, sys=5.58%, ctx=1478, 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=144040: Fri Jul 24 20:52:18 2026 read: IOPS=13, BW=220KiB/s (226kB/s)(6032KiB/27361msec) clat (usec): min=23, max=218739, avg=40276.03, stdev=31247.98 lat (usec): min=23, max=218740, avg=40279.01, stdev=31246.76 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 16712], | 30.00th=[ 26084], 40.00th=[ 32637], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 61080], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[154141], 99.50th=[217056], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 63, max= 345, per=25.22%, avg=217.89, stdev=64.31, samples=53 iops : min= 3, max= 21, avg=12.85, stdev= 4.08, samples=53 write: IOPS=14, BW=229KiB/s (234kB/s)(6256KiB/27361msec); 0 zone resets clat (usec): min=1245, max=193963, avg=30977.10, stdev=32635.53 lat (usec): min=1245, max=193966, avg=30979.39, stdev=32635.54 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2073], 10.00th=[ 2966], 20.00th=[ 5014], | 30.00th=[ 7504], 40.00th=[ 11207], 50.00th=[ 19268], 60.00th=[ 29492], | 70.00th=[ 39584], 80.00th=[ 54789], 90.00th=[ 72877], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[179307], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 94, max= 443, per=24.95%, avg=226.81, stdev=86.92, samples=53 iops : min= 5, max= 27, avg=13.42, stdev= 5.44, samples=53 lat (usec) : 50=1.43%, 100=6.90%, 250=0.52%, 500=0.26% lat (msec) : 2=2.34%, 4=5.86%, 10=10.81%, 20=8.72%, 50=35.16% lat (msec) : 100=24.61%, 250=3.39% cpu : usr=0.07%, sys=5.85%, ctx=1511, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=864KiB/s (885kB/s), 213KiB/s-230KiB/s (218kB/s-236kB/s), io=23.4MiB (24.5MB), run=26927-27711msec WRITE: bw=909KiB/s (931kB/s), 222KiB/s-243KiB/s (227kB/s-249kB/s), io=24.6MiB (25.8MB), run=26927-27711msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144032: Fri Jul 24 20:52:54 2026 read: IOPS=5, BW=92.6KiB/s (94.8kB/s)(5920KiB/63962msec) clat (msec): min=6, max=301, avg=38.25, stdev=39.22 lat (msec): min=6, max=301, avg=38.25, stdev=39.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 83], 95.00th=[ 120], | 99.00th=[ 222], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 415, per=27.24%, avg=100.80, stdev=65.84, samples=115 iops : min= 1, max= 25, avg= 5.57, stdev= 4.14, samples=115 write: IOPS=6, BW=99.6KiB/s (102kB/s)(6368KiB/63962msec); 0 zone resets clat (msec): min=31, max=342, avg=124.65, stdev=59.62 lat (msec): min=31, max=342, avg=124.65, stdev=59.62 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 80], 40.00th=[ 97], 50.00th=[ 113], 60.00th=[ 131], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 205], 95.00th=[ 236], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 21, max= 256, per=25.83%, avg=100.73, stdev=46.31, samples=124 iops : min= 1, max= 16, avg= 5.56, stdev= 3.01, samples=124 lat (msec) : 10=2.86%, 20=13.80%, 50=23.05%, 100=26.43%, 250=31.51% lat (msec) : 500=2.34% cpu : usr=0.05%, sys=1.46%, ctx=1366, 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=144033: Fri Jul 24 20:52:54 2026 read: IOPS=5, BW=88.9KiB/s (91.0kB/s)(5744KiB/64603msec) clat (msec): min=5, max=328, avg=40.14, stdev=44.78 lat (msec): min=5, max=328, avg=40.15, stdev=44.78 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 88], 95.00th=[ 140], | 99.00th=[ 264], 99.50th=[ 288], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 21, max= 319, per=26.95%, avg=99.71, stdev=63.61, samples=112 iops : min= 1, max= 19, avg= 5.49, stdev= 4.01, samples=112 write: IOPS=6, BW=101KiB/s (104kB/s)(6544KiB/64603msec); 0 zone resets clat (msec): min=38, max=366, avg=122.25, stdev=55.34 lat (msec): min=38, max=366, avg=122.25, stdev=55.34 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 230], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 288, per=26.10%, avg=101.78, stdev=47.68, samples=125 iops : min= 1, max= 18, avg= 5.63, stdev= 3.09, samples=125 lat (msec) : 10=2.86%, 20=14.32%, 50=22.53%, 100=26.30%, 250=31.64% lat (msec) : 500=2.34% cpu : usr=0.04%, sys=1.47%, ctx=1371, 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=144034: Fri Jul 24 20:52:54 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(6256KiB/61810msec) clat (msec): min=5, max=262, avg=35.06, stdev=30.51 lat (msec): min=5, max=262, avg=35.06, stdev=30.51 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 49], 90.00th=[ 70], 95.00th=[ 90], | 99.00th=[ 159], 99.50th=[ 228], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 320, per=29.80%, avg=110.27, stdev=70.54, samples=112 iops : min= 1, max= 20, avg= 6.15, stdev= 4.46, samples=112 write: IOPS=6, BW=97.6KiB/s (99.9kB/s)(6032KiB/61810msec); 0 zone resets clat (msec): min=42, max=376, avg=127.05, stdev=57.65 lat (msec): min=42, max=376, avg=127.06, stdev=57.65 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 114], 60.00th=[ 131], | 70.00th=[ 146], 80.00th=[ 167], 90.00th=[ 211], 95.00th=[ 247], | 99.00th=[ 313], 99.50th=[ 359], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 224, per=24.94%, avg=97.27, stdev=41.83, samples=122 iops : min= 1, max= 14, avg= 5.34, stdev= 2.71, samples=122 lat (msec) : 10=3.52%, 20=14.71%, 50=23.31%, 100=27.47%, 250=28.65% lat (msec) : 500=2.34% cpu : usr=0.04%, sys=1.49%, ctx=1310, 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=144035: Fri Jul 24 20:52:54 2026 read: IOPS=5, BW=94.8KiB/s (97.1kB/s)(6032KiB/63642msec) clat (msec): min=7, max=270, avg=38.22, stdev=37.42 lat (msec): min=7, max=270, avg=38.22, stdev=37.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 85], 95.00th=[ 120], | 99.00th=[ 194], 99.50th=[ 268], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 21, max= 352, per=27.54%, avg=101.91, stdev=66.56, samples=115 iops : min= 1, max= 22, avg= 5.63, stdev= 4.25, samples=115 write: IOPS=6, BW=98.3KiB/s (101kB/s)(6256KiB/63642msec); 0 zone resets clat (msec): min=37, max=403, avg=125.78, stdev=59.52 lat (msec): min=37, max=403, avg=125.79, stdev=59.52 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 113], 60.00th=[ 124], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 211], 95.00th=[ 236], | 99.00th=[ 338], 99.50th=[ 368], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 30, max= 256, per=25.60%, avg=99.84, stdev=44.94, samples=123 iops : min= 1, max= 16, avg= 5.49, stdev= 2.89, samples=123 lat (msec) : 10=1.43%, 20=15.63%, 50=24.74%, 100=23.44%, 250=32.68% lat (msec) : 500=2.08% cpu : usr=0.04%, sys=1.46%, ctx=1265, 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=371KiB/s (380kB/s), 88.9KiB/s-101KiB/s (91.0kB/s-104kB/s), io=23.4MiB (24.5MB), run=61810-64603msec WRITE: bw=390KiB/s (399kB/s), 97.6KiB/s-101KiB/s (99.9kB/s-104kB/s), io=24.6MiB (25.8MB), run=61810-64603msec 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=144059: Fri Jul 24 20:53:05 2026 read: IOPS=2, BW=2727KiB/s (2792kB/s)(7168KiB/2629msec) clat (msec): min=69, max=310, avg=146.36, stdev=77.23 lat (msec): min=69, max=310, avg=146.37, stdev=77.23 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 107], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 150], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 2035, max= 4190, per=59.52%, avg=3440.33, stdev=1217.96, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1948KiB/s (1994kB/s)(5120KiB/2629msec); 0 zone resets clat (msec): min=194, max=476, avg=287.24, stdev=119.81 lat (msec): min=194, max=476, avg=287.50, stdev=119.73 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 222], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 2027, max= 4071, per=33.56%, avg=2715.33, stdev=1174.09, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=3.23%, ctx=47, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144060: Fri Jul 24 20:53:05 2026 read: IOPS=0, BW=578KiB/s (592kB/s)(2048KiB/3543msec) clat (msec): min=141, max=201, avg=171.23, stdev=42.17 lat (msec): min=141, max=201, avg=171.24, stdev=42.18 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 201], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 201], 95.00th=[ 201], | 99.00th=[ 201], 99.50th=[ 201], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 1370, max= 2035, per=29.46%, avg=1702.50, stdev=470.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2890KiB/s (2960kB/s)(10.0MiB/3543msec); 0 zone resets clat (msec): min=159, max=604, avg=306.32, stdev=128.43 lat (msec): min=159, max=604, avg=306.56, stdev=128.34 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 211], | 30.00th=[ 226], 40.00th=[ 255], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 296], 80.00th=[ 372], 90.00th=[ 414], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1370, max= 4096, per=35.85%, avg=2900.83, stdev=1227.87, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (msec) : 250=41.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=2.65%, ctx=48, 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=144061: Fri Jul 24 20:53:05 2026 read: IOPS=2, BW=2347KiB/s (2403kB/s)(6144KiB/2618msec) clat (msec): min=99, max=191, avg=145.85, stdev=36.78 lat (msec): min=99, max=191, avg=145.85, stdev=36.78 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 155], | 70.00th=[ 182], 80.00th=[ 182], 90.00th=[ 192], 95.00th=[ 192], | 99.00th=[ 192], 99.50th=[ 192], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 2027, max= 4096, per=58.79%, avg=3398.00, stdev=1187.39, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2347KiB/s (2403kB/s)(6144KiB/2618msec); 0 zone resets clat (msec): min=179, max=354, avg=265.51, stdev=64.14 lat (msec): min=179, max=354, avg=265.62, stdev=64.15 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 292], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1385, max= 4055, per=29.42%, avg=2380.75, stdev=1158.29, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=33.33% cpu : usr=0.11%, sys=4.36%, ctx=61, 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=144062: Fri Jul 24 20:53:05 2026 read: IOPS=1, BW=1764KiB/s (1807kB/s)(5120KiB/2902msec) clat (msec): min=105, max=249, avg=168.02, stdev=63.06 lat (msec): min=105, max=249, avg=168.02, stdev=63.06 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 159], 60.00th=[ 159], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 249], 95.00th=[ 249], | 99.00th=[ 249], 99.50th=[ 249], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 2035, max= 6144, per=70.75%, avg=4089.50, stdev=2905.50, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2470KiB/s (2529kB/s)(7168KiB/2902msec); 0 zone resets clat (msec): min=205, max=424, avg=290.50, stdev=82.14 lat (msec): min=206, max=424, avg=290.61, stdev=82.14 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 243], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 388], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2035, max= 4055, per=39.21%, avg=3173.00, stdev=947.12, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 250=58.33%, 500=41.67% cpu : usr=0.14%, sys=3.69%, ctx=46, 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=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=5780KiB/s (5919kB/s), 578KiB/s-2727KiB/s (592kB/s-2792kB/s), io=20.0MiB (20.0MB), run=2618-3543msec WRITE: bw=8093KiB/s (8287kB/s), 1948KiB/s-2890KiB/s (1994kB/s-2960kB/s), io=28.0MiB (29.4MB), run=2618-3543msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144064: Fri Jul 24 20:53:07 2026 read: IOPS=3, BW=3166KiB/s (3242kB/s)(7168KiB/2264msec) clat (usec): min=630, max=523571, avg=162290.27, stdev=190370.46 lat (usec): min=631, max=523572, avg=162291.36, stdev=190370.34 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 1598], | 30.00th=[ 2606], 40.00th=[ 2606], 50.00th=[154141], 60.00th=[204473], | 70.00th=[204473], 80.00th=[248513], 90.00th=[522191], 95.00th=[522191], | 99.00th=[522191], 99.50th=[522191], 99.90th=[522191], 99.95th=[522191], | 99.99th=[522191] bw ( KiB/s): min= 1787, max= 4055, per=40.81%, avg=2969.00, stdev=1137.04, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=2, BW=2261KiB/s (2316kB/s)(5120KiB/2264msec); 0 zone resets clat (msec): min=153, max=307, avg=225.35, stdev=69.66 lat (msec): min=153, max=307, avg=225.42, stdev=69.66 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 4055, max= 4055, per=39.81%, avg=4055.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=50.00%, 500=16.67%, 750=8.33% cpu : usr=0.00%, sys=14.67%, ctx=125, 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=144065: Fri Jul 24 20:53:07 2026 read: IOPS=0, BW=728KiB/s (745kB/s)(2048KiB/2815msec) clat (msec): min=20, max=176, avg=98.46, stdev=110.02 lat (msec): min=20, max=176, avg=98.46, stdev=110.02 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 21], 10.00th=[ 21], 20.00th=[ 21], | 30.00th=[ 21], 40.00th=[ 21], 50.00th=[ 21], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 1546, max= 2027, per=24.56%, avg=1786.50, stdev=340.12, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3638KiB/s (3725kB/s)(10.0MiB/2815msec); 0 zone resets clat (msec): min=112, max=471, avg=261.48, stdev=115.68 lat (msec): min=113, max=471, avg=261.68, stdev=115.58 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 194], 50.00th=[ 243], 60.00th=[ 266], | 70.00th=[ 296], 80.00th=[ 300], 90.00th=[ 418], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1546, max= 4055, per=33.21%, avg=3382.40, stdev=1048.54, samples=5 iops : min= 1, max= 3, avg= 2.60, stdev= 0.89, samples=5 lat (msec) : 50=8.33%, 250=50.00%, 500=41.67% cpu : usr=0.00%, sys=15.14%, ctx=102, 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=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=144066: Fri Jul 24 20:53:07 2026 read: IOPS=2, BW=2479KiB/s (2539kB/s)(6144KiB/2478msec) clat (usec): min=410, max=331260, avg=62092.90, stdev=132389.79 lat (usec): min=411, max=331261, avg=62094.20, stdev=132389.74 clat percentiles (usec): | 1.00th=[ 412], 5.00th=[ 412], 10.00th=[ 412], 20.00th=[ 766], | 30.00th=[ 766], 40.00th=[ 1237], 50.00th=[ 1237], 60.00th=[ 7701], | 70.00th=[ 31327], 80.00th=[ 31327], 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= 1845, max= 8110, per=68.42%, avg=4977.50, stdev=4430.02, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=2, BW=2479KiB/s (2539kB/s)(6144KiB/2478msec); 0 zone resets clat (msec): min=125, max=698, avg=350.69, stdev=217.62 lat (msec): min=125, max=698, avg=350.76, stdev=217.63 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 300], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1787, max= 2904, per=21.02%, avg=2140.75, stdev=519.00, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 2=8.33%, 10=8.33%, 50=8.33%, 250=16.67%, 500=25.00% lat (msec) : 750=16.67% cpu : usr=0.16%, sys=11.47%, ctx=71, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144068: Fri Jul 24 20:53:07 2026 read: IOPS=2, BW=2109KiB/s (2159kB/s)(5120KiB/2428msec) clat (usec): min=410, max=135641, avg=42608.52, stdev=61279.62 lat (usec): min=411, max=135641, avg=42609.39, stdev=61279.48 clat percentiles (usec): | 1.00th=[ 412], 5.00th=[ 412], 10.00th=[ 412], 20.00th=[ 412], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 807], 60.00th=[ 807], | 70.00th=[ 74974], 80.00th=[ 74974], 90.00th=[135267], 95.00th=[135267], | 99.00th=[135267], 99.50th=[135267], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 1787, max= 6083, per=54.09%, avg=3935.00, stdev=3037.73, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2952KiB/s (3023kB/s)(7168KiB/2428msec); 0 zone resets clat (msec): min=175, max=534, avg=315.26, stdev=142.97 lat (msec): min=176, max=534, avg=316.21, stdev=142.90 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 190], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 241], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 456], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 3002, max= 3690, per=33.60%, avg=3422.00, stdev=368.33, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (usec) : 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=8.33% cpu : usr=0.16%, sys=15.12%, ctx=94, 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=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=7275KiB/s (7450kB/s), 728KiB/s-3166KiB/s (745kB/s-3242kB/s), io=20.0MiB (20.0MB), run=2264-2815msec WRITE: bw=9.95MiB/s (10.4MB/s), 2261KiB/s-3638KiB/s (2316kB/s-3725kB/s), io=28.0MiB (29.4MB), run=2264-2815msec 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=144078: Fri Jul 24 20:53:21 2026 read: IOPS=0, BW=4065KiB/s (4162kB/s)(12.0MiB/3023msec) clat (msec): min=658, max=1394, avg=985.81, stdev=374.57 lat (msec): min=658, max=1394, avg=985.81, stdev=374.57 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8094, max= 8175, per=100.00%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.00%, ctx=40, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144079: Fri Jul 24 20:53:21 2026 read: IOPS=0, BW=1124KiB/s (1151kB/s)(4096KiB/3643msec) clat (nsec): min=1072.6M, max=1072.6M, avg=1072627530.00, stdev= 0.00 lat (nsec): min=1072.6M, max=1072.6M, avg=1072630400.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1070], 5.00th=[ 1070], 10.00th=[ 1070], 20.00th=[ 1070], | 30.00th=[ 1070], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2249KiB/s (2303kB/s)(8192KiB/3643msec); 0 zone resets clat (msec): min=863, max=1634, avg=1249.01, stdev=545.02 lat (msec): min=864, max=1634, avg=1249.37, stdev=544.94 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 1636], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8175, max= 8175, per=90.89%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.86%, ctx=55, 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=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=144080: Fri Jul 24 20:53:21 2026 write: IOPS=0, BW=3399KiB/s (3481kB/s)(12.0MiB/3615msec); 0 zone resets clat (msec): min=457, max=1767, avg=1170.90, stdev=662.79 lat (msec): min=462, max=1767, avg=1172.74, stdev=660.49 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8047, max= 8175, per=90.18%, avg=8111.00, stdev=90.51, 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=4.51%, ctx=56, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144081: Fri Jul 24 20:53:21 2026 write: IOPS=0, BW=3793KiB/s (3884kB/s)(12.0MiB/3240msec); 0 zone resets clat (msec): min=948, max=1067, avg=1025.76, stdev=66.78 lat (msec): min=949, max=1068, avg=1026.39, stdev=67.05 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8031, max= 8175, per=90.09%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.08%, ctx=82, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4497KiB/s (4605kB/s), 1124KiB/s-4065KiB/s (1151kB/s-4162kB/s), io=16.0MiB (16.8MB), run=3023-3643msec WRITE: bw=8995KiB/s (9211kB/s), 2249KiB/s-3793KiB/s (2303kB/s-3884kB/s), io=32.0MiB (33.6MB), run=3240-3643msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144074: Fri Jul 24 20:53:22 2026 read: IOPS=0, BW=3742KiB/s (3832kB/s)(12.0MiB/3284msec) clat (msec): min=802, max=1186, avg=1002.29, stdev=192.67 lat (msec): min=802, max=1186, avg=1002.30, stdev=192.67 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8094, max= 8175, per=100.00%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=9.90%, ctx=320, 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=144075: Fri Jul 24 20:53:22 2026 read: IOPS=0, BW=1248KiB/s (1278kB/s)(4096KiB/3281msec) clat (nsec): min=1058.5M, max=1058.5M, avg=1058546622.00, stdev= 0.00 lat (nsec): min=1058.6M, max=1058.6M, avg=1058552092.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 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= 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 write: IOPS=0, BW=2497KiB/s (2557kB/s)(8192KiB/3281msec); 0 zone resets clat (msec): min=627, max=1305, avg=966.43, stdev=479.62 lat (msec): min=629, max=1305, avg=967.59, stdev=478.50 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7922, max= 7922, per=100.00%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.19%, ctx=213, 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=144076: Fri Jul 24 20:53:22 2026 write: IOPS=0, BW=2612KiB/s (2675kB/s)(12.0MiB/4704msec); 0 zone resets clat (msec): min=304, max=2935, avg=1432.50, stdev=1355.23 lat (msec): min=304, max=2936, avg=1433.74, stdev=1355.53 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 2937], 80.00th=[ 2937], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 8015, max= 8175, per=100.00%, avg=8095.00, stdev=113.14, 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=3.83%, ctx=70, 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=144077: Fri Jul 24 20:53:22 2026 write: IOPS=1, BW=4582KiB/s (4692kB/s)(12.0MiB/2682msec); 0 zone resets clat (msec): min=381, max=1517, avg=794.37, stdev=628.60 lat (msec): min=381, max=1518, avg=795.01, stdev=628.66 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.11%, ctx=84, 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=4989KiB/s (5109kB/s), 1248KiB/s-3742KiB/s (1278kB/s-3832kB/s), io=16.0MiB (16.8MB), run=3281-3284msec WRITE: bw=6966KiB/s (7133kB/s), 2497KiB/s-4582KiB/s (2557kB/s-4692kB/s), io=32.0MiB (33.6MB), run=2682-4704msec