== sanity test 398b: DIO and buffer IO race ============== 04:41:20 (1787733680) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.94154 s, 10.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145462: Wed Aug 26 04:43:22 2026 read: IOPS=14, BW=57.0KiB/s (59.3kB/s)(5992KiB/103399msec) clat (usec): min=34, max=519624, avg=34631.05, stdev=28006.44 lat (usec): min=35, max=519625, avg=34637.13, stdev=28005.06 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 71], 10.00th=[ 10552], 20.00th=[ 17171], | 30.00th=[ 21103], 40.00th=[ 25035], 50.00th=[ 28967], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50594], 90.00th=[ 64226], 95.00th=[ 80217], | 99.00th=[119014], 99.50th=[147850], 99.90th=[329253], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 126, per=25.20%, avg=57.45, stdev=22.09, samples=204 iops : min= 1, max= 31, avg=13.73, stdev= 5.55, samples=204 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(6296KiB/103399msec); 0 zone resets clat (usec): min=935, max=244607, avg=32641.44, stdev=31606.05 lat (usec): min=936, max=244609, avg=32644.59, stdev=31605.94 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1418], 10.00th=[ 2024], 20.00th=[ 4228], | 30.00th=[ 8455], 40.00th=[ 16909], 50.00th=[ 26084], 60.00th=[ 33817], | 70.00th=[ 43254], 80.00th=[ 54789], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[137364], 99.50th=[162530], 99.90th=[221250], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 5, max= 125, per=25.24%, avg=60.33, stdev=22.92, samples=204 iops : min= 1, max= 31, avg=14.45, stdev= 5.76, samples=204 lat (usec) : 50=0.33%, 100=2.96%, 250=0.49%, 500=0.23%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.05%, 4=5.05%, 10=7.00%, 20=14.45%, 50=42.32% lat (msec) : 100=19.34%, 250=2.67%, 500=0.03%, 750=0.03% cpu : usr=0.11%, sys=6.43%, ctx=6865, 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=145463: Wed Aug 26 04:43:22 2026 read: IOPS=14, BW=56.7KiB/s (58.0kB/s)(5940KiB/104798msec) clat (usec): min=16, max=582053, avg=35030.55, stdev=28874.30 lat (usec): min=16, max=582055, avg=35033.84, stdev=28874.02 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 76], 10.00th=[ 11338], 20.00th=[ 16712], | 30.00th=[ 21365], 40.00th=[ 24773], 50.00th=[ 29754], 60.00th=[ 35914], | 70.00th=[ 42206], 80.00th=[ 50594], 90.00th=[ 64226], 95.00th=[ 76022], | 99.00th=[124257], 99.50th=[156238], 99.90th=[250610], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 5, max= 117, per=24.78%, avg=56.49, stdev=23.80, samples=206 iops : min= 1, max= 29, avg=13.49, stdev= 5.98, samples=206 write: IOPS=15, BW=60.6KiB/s (62.0kB/s)(6348KiB/104798msec); 0 zone resets clat (usec): min=1014, max=466944, avg=33131.43, stdev=35919.15 lat (usec): min=1014, max=466946, avg=33141.25, stdev=35920.75 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1467], 10.00th=[ 2057], 20.00th=[ 3949], | 30.00th=[ 7242], 40.00th=[ 15139], 50.00th=[ 24511], 60.00th=[ 33162], | 70.00th=[ 42206], 80.00th=[ 56361], 90.00th=[ 77071], 95.00th=[ 99091], | 99.00th=[154141], 99.50th=[173016], 99.90th=[295699], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 5, max= 167, per=25.14%, avg=60.09, stdev=24.01, samples=207 iops : min= 1, max= 41, avg=14.38, stdev= 6.02, samples=207 lat (usec) : 20=0.03%, 50=0.29%, 100=2.73%, 250=0.52%, 500=0.20% lat (usec) : 750=0.03% lat (msec) : 2=5.21%, 4=5.44%, 10=7.71%, 20=14.23%, 50=41.28% lat (msec) : 100=18.82%, 250=3.32%, 500=0.16%, 750=0.03% cpu : usr=0.11%, sys=6.27%, ctx=6944, 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=145464: Wed Aug 26 04:43:22 2026 read: IOPS=14, BW=58.7KiB/s (60.1kB/s)(6028KiB/102670msec) clat (usec): min=36, max=246304, avg=33872.99, stdev=24193.00 lat (usec): min=37, max=246305, avg=33875.82, stdev=24191.48 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 73], 10.00th=[ 9765], 20.00th=[ 17171], | 30.00th=[ 21365], 40.00th=[ 24773], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 50594], 90.00th=[ 63177], 95.00th=[ 74974], | 99.00th=[112722], 99.50th=[137364], 99.90th=[242222], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 8, max= 118, per=25.81%, avg=58.85, stdev=21.33, samples=201 iops : min= 2, max= 29, avg=14.07, stdev= 5.35, samples=201 write: IOPS=15, BW=60.0KiB/s (62.4kB/s)(6260KiB/102670msec); 0 zone resets clat (usec): min=1066, max=668034, avg=32885.64, stdev=39172.49 lat (usec): min=1067, max=668035, avg=32892.01, stdev=39177.91 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1500], 10.00th=[ 2024], 20.00th=[ 3982], | 30.00th=[ 7111], 40.00th=[ 15008], 50.00th=[ 23987], 60.00th=[ 32375], | 70.00th=[ 40109], 80.00th=[ 52691], 90.00th=[ 72877], 95.00th=[ 96994], | 99.00th=[179307], 99.50th=[217056], 99.90th=[383779], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 5, max= 136, per=25.33%, avg=60.53, stdev=25.07, samples=203 iops : min= 1, max= 34, avg=14.50, stdev= 6.30, samples=203 lat (usec) : 50=0.29%, 100=2.99%, 250=0.81%, 500=0.20%, 750=0.16% lat (usec) : 1000=0.03% lat (msec) : 2=5.01%, 4=5.31%, 10=7.75%, 20=13.25%, 50=42.97% lat (msec) : 100=18.29%, 250=2.80%, 500=0.10%, 750=0.03% cpu : usr=0.10%, sys=6.39%, ctx=6717, 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=145465: Wed Aug 26 04:43:22 2026 read: IOPS=14, BW=57.7KiB/s (59.0kB/s)(6052KiB/104965msec) clat (usec): min=35, max=237491, avg=33144.40, stdev=23349.55 lat (usec): min=35, max=237492, avg=33152.60, stdev=23353.89 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 9241], 20.00th=[ 16712], | 30.00th=[ 20841], 40.00th=[ 24773], 50.00th=[ 28705], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 48497], 90.00th=[ 61080], 95.00th=[ 74974], | 99.00th=[114820], 99.50th=[135267], 99.90th=[185598], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 127, per=25.17%, avg=57.38, stdev=23.96, samples=206 iops : min= 1, max= 31, avg=13.69, stdev= 6.01, samples=206 write: IOPS=14, BW=59.4KiB/s (60.8kB/s)(6236KiB/104965msec); 0 zone resets clat (usec): min=1008, max=670832, avg=35035.89, stdev=39041.02 lat (usec): min=1009, max=670834, avg=35045.54, stdev=39046.11 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1516], 10.00th=[ 2278], 20.00th=[ 4080], | 30.00th=[ 7504], 40.00th=[ 16319], 50.00th=[ 25822], 60.00th=[ 34341], | 70.00th=[ 44303], 80.00th=[ 58459], 90.00th=[ 81265], 95.00th=[104334], | 99.00th=[152044], 99.50th=[193987], 99.90th=[287310], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 5, max= 127, per=24.59%, avg=58.77, stdev=22.31, samples=207 iops : min= 1, max= 31, avg=14.05, stdev= 5.61, samples=207 lat (usec) : 50=0.36%, 100=3.29%, 250=0.68%, 500=0.20%, 750=0.07% lat (msec) : 2=4.23%, 4=5.73%, 10=7.88%, 20=13.28%, 50=41.89% lat (msec) : 100=18.85%, 250=3.48%, 500=0.03%, 750=0.03% cpu : usr=0.10%, sys=6.34%, ctx=6991, 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=229KiB/s (234kB/s), 56.7KiB/s-58.7KiB/s (58.0kB/s-60.1kB/s), io=23.4MiB (24.6MB), run=102670-104965msec WRITE: bw=240KiB/s (245kB/s), 59.4KiB/s-60.0KiB/s (60.8kB/s-62.4kB/s), io=24.6MiB (25.7MB), run=102670-104965msec fio: pid=145459, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145457: Wed Aug 26 04:45:18 2026 read: IOPS=6, BW=27.2KiB/s (27.9kB/s)(5992KiB/220023msec) clat (msec): min=5, max=810, avg=31.72, stdev=35.15 lat (msec): min=5, max=810, avg=31.72, stdev=35.15 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 89], | 99.00th=[ 153], 99.50th=[ 186], 99.90th=[ 271], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 103, per=29.91%, avg=29.01, stdev=19.10, samples=401 iops : min= 1, max= 25, avg= 6.66, stdev= 4.82, samples=401 write: IOPS=7, BW=28.6KiB/s (29.3kB/s)(6296KiB/220023msec); 0 zone resets clat (msec): min=32, max=453, avg=109.34, stdev=50.14 lat (msec): min=32, max=453, avg=109.35, stdev=50.14 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 51], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 79], 40.00th=[ 88], 50.00th=[ 99], 60.00th=[ 111], | 70.00th=[ 126], 80.00th=[ 144], 90.00th=[ 174], 95.00th=[ 203], | 99.00th=[ 275], 99.50th=[ 321], 99.90th=[ 422], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 56, per=27.58%, avg=28.13, stdev=12.21, samples=434 iops : min= 1, max= 14, avg= 6.43, stdev= 3.13, samples=434 lat (msec) : 10=4.17%, 20=17.77%, 50=21.81%, 100=29.92%, 250=25.36% lat (msec) : 500=0.94%, 1000=0.03% cpu : usr=0.05%, sys=1.50%, ctx=5617, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145458: Wed Aug 26 04:45:18 2026 read: IOPS=6, BW=26.8KiB/s (27.5kB/s)(5940KiB/221226msec) clat (msec): min=5, max=861, avg=30.73, stdev=35.40 lat (msec): min=5, max=861, avg=30.73, stdev=35.40 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 40], 90.00th=[ 61], 95.00th=[ 85], | 99.00th=[ 155], 99.50th=[ 197], 99.90th=[ 309], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 111, per=29.79%, avg=28.89, stdev=18.93, samples=399 iops : min= 1, max= 27, avg= 6.63, stdev= 4.75, samples=399 write: IOPS=7, BW=28.7KiB/s (29.4kB/s)(6348KiB/221226msec); 0 zone resets clat (msec): min=31, max=461, avg=110.39, stdev=52.67 lat (msec): min=31, max=461, avg=110.40, stdev=52.68 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 51], 10.00th=[ 57], 20.00th=[ 67], | 30.00th=[ 78], 40.00th=[ 87], 50.00th=[ 99], 60.00th=[ 111], | 70.00th=[ 127], 80.00th=[ 148], 90.00th=[ 180], 95.00th=[ 209], | 99.00th=[ 275], 99.50th=[ 321], 99.90th=[ 435], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 64, per=27.77%, avg=28.33, stdev=12.35, samples=435 iops : min= 1, max= 16, avg= 6.48, stdev= 3.17, samples=435 lat (msec) : 10=4.46%, 20=17.45%, 50=22.14%, 100=29.82%, 250=24.97% lat (msec) : 500=1.14%, 1000=0.03% cpu : usr=0.05%, sys=1.49%, ctx=5497, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145459: Wed Aug 26 04:45:18 2026 read: IOPS=5, BW=22.7KiB/s (23.3kB/s)(3672KiB/161507msec) clat (msec): min=5, max=240, avg=37.92, stdev=32.22 lat (msec): min=5, max=240, avg=37.92, stdev=32.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 159], 99.50th=[ 205], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 7, max= 103, per=25.00%, avg=24.25, stdev=16.09, samples=292 iops : min= 1, max= 25, avg= 5.42, stdev= 4.05, samples=292 write: IOPS=5, BW=23.6KiB/s (24.1kB/s)(3808KiB/161507msec); 0 zone resets clat (msec): min=38, max=956, avg=132.70, stdev=59.57 lat (msec): min=38, max=956, avg=132.71, stdev=59.57 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 124], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 199], 95.00th=[ 234], | 99.00th=[ 313], 99.50th=[ 363], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 47, per=22.74%, avg=23.20, stdev= 9.36, samples=316 iops : min= 1, max= 11, avg= 5.16, stdev= 2.37, samples=316 lat (msec) : 10=2.24%, 20=14.64%, 50=21.27%, 100=24.16%, 250=35.86% lat (msec) : 500=1.71%, 1000=0.05% cpu : usr=0.05%, sys=1.27%, ctx=2833, 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=919,952,0,0 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=145460: Wed Aug 26 04:45:18 2026 read: IOPS=6, BW=27.5KiB/s (28.1kB/s)(6052KiB/220290msec) clat (msec): min=5, max=268, avg=30.08, stdev=27.57 lat (msec): min=5, max=268, avg=30.08, stdev=27.57 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 62], 95.00th=[ 82], | 99.00th=[ 144], 99.50th=[ 190], 99.90th=[ 266], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 103, per=30.40%, avg=29.49, stdev=19.34, samples=399 iops : min= 1, max= 25, avg= 6.78, stdev= 4.90, samples=399 write: IOPS=7, BW=28.3KiB/s (28.0kB/s)(6236KiB/220290msec); 0 zone resets clat (msec): min=30, max=950, avg=111.87, stdev=56.05 lat (msec): min=30, max=950, avg=111.87, stdev=56.04 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 70], | 30.00th=[ 80], 40.00th=[ 89], 50.00th=[ 101], 60.00th=[ 114], | 70.00th=[ 129], 80.00th=[ 146], 90.00th=[ 178], 95.00th=[ 205], | 99.00th=[ 292], 99.50th=[ 342], 99.90th=[ 464], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 72, per=27.31%, avg=27.86, stdev=12.12, samples=434 iops : min= 1, max= 18, avg= 6.36, stdev= 3.09, samples=434 lat (msec) : 10=5.24%, 20=17.48%, 50=21.71%, 100=28.94%, 250=25.52% lat (msec) : 500=1.07%, 1000=0.03% cpu : usr=0.05%, sys=1.44%, ctx=5586, 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=97.9KiB/s (100kB/s), 22.7KiB/s-27.5KiB/s (23.3kB/s-28.1kB/s), io=21.1MiB (22.2MB), run=161507-221226msec WRITE: bw=103KiB/s (105kB/s), 23.6KiB/s-28.7KiB/s (24.1kB/s-29.4kB/s), io=22.2MiB (23.2MB), run=161507-221226msec 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=145509: Wed Aug 26 04:45:50 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(5920KiB/24228msec) clat (usec): min=42, max=324294, avg=34139.64, stdev=31416.15 lat (usec): min=42, max=324295, avg=34141.48, stdev=31415.47 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 72], 20.00th=[ 375], | 30.00th=[ 19268], 40.00th=[ 24773], 50.00th=[ 30540], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 54264], 90.00th=[ 66847], 95.00th=[ 76022], | 99.00th=[133694], 99.50th=[193987], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 95, max= 447, per=24.15%, avg=238.55, stdev=85.87, samples=47 iops : min= 5, max= 27, avg=14.13, stdev= 5.42, samples=47 write: IOPS=16, BW=263KiB/s (269kB/s)(6368KiB/24228msec); 0 zone resets clat (usec): min=1487, max=189626, avg=28743.57, stdev=29832.68 lat (usec): min=1488, max=189627, avg=28746.89, stdev=29831.75 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2311], 10.00th=[ 2868], 20.00th=[ 4424], | 30.00th=[ 6718], 40.00th=[ 9896], 50.00th=[ 20055], 60.00th=[ 27132], | 70.00th=[ 36963], 80.00th=[ 51119], 90.00th=[ 72877], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[149947], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 63, max= 606, per=24.99%, avg=259.89, stdev=107.79, samples=47 iops : min= 3, max= 37, avg=15.47, stdev= 6.77, samples=47 lat (usec) : 50=0.39%, 100=7.68%, 250=1.17%, 500=0.65%, 750=0.26% lat (msec) : 2=2.08%, 4=7.42%, 10=12.11%, 20=8.85%, 50=37.11% lat (msec) : 100=19.79%, 250=2.34%, 500=0.13% cpu : usr=0.07%, sys=7.62%, ctx=1586, 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=145510: Wed Aug 26 04:45:50 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(5744KiB/23503msec) clat (usec): min=39, max=236989, avg=33204.95, stdev=27371.64 lat (usec): min=40, max=236990, avg=33207.45, stdev=27370.19 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 73], 20.00th=[ 420], | 30.00th=[ 20055], 40.00th=[ 26084], 50.00th=[ 32375], 60.00th=[ 36439], | 70.00th=[ 42206], 80.00th=[ 52167], 90.00th=[ 65274], 95.00th=[ 73925], | 99.00th=[104334], 99.50th=[168821], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 63, max= 415, per=24.72%, avg=244.26, stdev=92.95, samples=46 iops : min= 3, max= 25, avg=14.50, stdev= 5.89, samples=46 write: IOPS=17, BW=278KiB/s (285kB/s)(6544KiB/23503msec); 0 zone resets clat (usec): min=1509, max=304393, avg=27906.60, stdev=30035.87 lat (usec): min=1511, max=304395, avg=27912.07, stdev=30037.54 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2442], 10.00th=[ 3064], 20.00th=[ 4752], | 30.00th=[ 6915], 40.00th=[ 10421], 50.00th=[ 17433], 60.00th=[ 25822], | 70.00th=[ 38011], 80.00th=[ 50070], 90.00th=[ 64750], 95.00th=[ 82314], | 99.00th=[119014], 99.50th=[135267], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 63, max= 480, per=26.75%, avg=278.17, stdev=88.08, samples=46 iops : min= 3, max= 30, avg=16.63, stdev= 5.60, samples=46 lat (usec) : 50=0.52%, 100=6.64%, 250=1.82%, 500=0.52%, 1000=0.26% lat (msec) : 2=1.82%, 4=6.38%, 10=12.89%, 20=11.46%, 50=37.11% lat (msec) : 100=18.88%, 250=1.56%, 500=0.13% cpu : usr=0.09%, sys=7.61%, ctx=1569, 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=145511: Wed Aug 26 04:45:50 2026 read: IOPS=16, BW=267KiB/s (273kB/s)(6256KiB/23456msec) clat (usec): min=44, max=191819, avg=34280.96, stdev=28956.65 lat (usec): min=45, max=191820, avg=34282.13, stdev=28956.62 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 76], 20.00th=[ 1172], | 30.00th=[ 21103], 40.00th=[ 26870], 50.00th=[ 32375], 60.00th=[ 36963], | 70.00th=[ 41681], 80.00th=[ 52167], 90.00th=[ 64750], 95.00th=[ 86508], | 99.00th=[152044], 99.50th=[181404], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 127, max= 505, per=27.14%, avg=268.17, stdev=88.33, samples=46 iops : min= 7, max= 31, avg=16.02, stdev= 5.64, samples=46 write: IOPS=16, BW=257KiB/s (263kB/s)(6032KiB/23456msec); 0 zone resets clat (usec): min=1438, max=154543, avg=26438.92, stdev=27654.52 lat (usec): min=1439, max=154545, avg=26441.52, stdev=27654.75 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2671], 10.00th=[ 3294], 20.00th=[ 5276], | 30.00th=[ 7308], 40.00th=[ 9503], 50.00th=[ 15533], 60.00th=[ 23987], | 70.00th=[ 33162], 80.00th=[ 42206], 90.00th=[ 65799], 95.00th=[ 86508], | 99.00th=[130548], 99.50th=[135267], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 95, max= 475, per=24.63%, avg=256.11, stdev=92.60, samples=46 iops : min= 5, max= 29, avg=15.26, stdev= 5.78, samples=46 lat (usec) : 50=0.52%, 100=6.51%, 250=2.86%, 500=0.26% lat (msec) : 2=1.56%, 4=5.47%, 10=13.54%, 20=10.94%, 50=39.32% lat (msec) : 100=16.02%, 250=2.99% cpu : usr=0.09%, sys=7.76%, ctx=1640, 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=145512: Wed Aug 26 04:45:50 2026 read: IOPS=16, BW=260KiB/s (266kB/s)(6032KiB/23206msec) clat (usec): min=37, max=193279, avg=32007.16, stdev=27472.39 lat (usec): min=37, max=193281, avg=32008.26, stdev=27472.39 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 147], | 30.00th=[ 18482], 40.00th=[ 24773], 50.00th=[ 29492], 60.00th=[ 35914], | 70.00th=[ 41681], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 74974], | 99.00th=[105382], 99.50th=[175113], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 31, max= 415, per=26.42%, avg=261.00, stdev=89.88, samples=45 iops : min= 1, max= 25, avg=15.56, stdev= 5.57, samples=45 write: IOPS=16, BW=270KiB/s (276kB/s)(6256KiB/23206msec); 0 zone resets clat (usec): min=1253, max=206829, avg=28143.67, stdev=32217.36 lat (usec): min=1254, max=206832, avg=28149.25, stdev=32217.41 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 2245], 10.00th=[ 3032], 20.00th=[ 4424], | 30.00th=[ 6325], 40.00th=[ 8586], 50.00th=[ 14746], 60.00th=[ 21627], | 70.00th=[ 35390], 80.00th=[ 50070], 90.00th=[ 71828], 95.00th=[ 93848], | 99.00th=[156238], 99.50th=[168821], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 95, max= 541, per=26.16%, avg=272.09, stdev=93.12, samples=45 iops : min= 5, max= 33, avg=16.24, stdev= 5.92, samples=45 lat (usec) : 50=0.52%, 100=7.94%, 250=2.34%, 500=0.39%, 750=0.52% lat (msec) : 2=2.47%, 4=7.16%, 10=12.63%, 20=10.42%, 50=34.64% lat (msec) : 100=18.10%, 250=2.86% cpu : usr=0.09%, sys=7.31%, ctx=1476, 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=989KiB/s (1012kB/s), 244KiB/s-267KiB/s (250kB/s-273kB/s), io=23.4MiB (24.5MB), run=23206-24228msec WRITE: bw=1040KiB/s (1065kB/s), 257KiB/s-278KiB/s (263kB/s-285kB/s), io=24.6MiB (25.8MB), run=23206-24228msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145514: Wed Aug 26 04:46:23 2026 read: IOPS=6, BW=106KiB/s (109kB/s)(5920KiB/55645msec) clat (msec): min=6, max=362, avg=34.72, stdev=34.56 lat (msec): min=6, max=362, avg=34.72, stdev=34.56 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 69], 95.00th=[ 103], | 99.00th=[ 157], 99.50th=[ 251], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 380, per=26.49%, avg=113.11, stdev=69.02, samples=103 iops : min= 1, max= 23, avg= 6.33, stdev= 4.38, samples=103 write: IOPS=7, BW=114KiB/s (117kB/s)(6368KiB/55645msec); 0 zone resets clat (msec): min=40, max=342, avg=107.32, stdev=50.19 lat (msec): min=40, max=342, avg=107.33, stdev=50.19 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 69], | 30.00th=[ 79], 40.00th=[ 86], 50.00th=[ 93], 60.00th=[ 103], | 70.00th=[ 114], 80.00th=[ 142], 90.00th=[ 180], 95.00th=[ 211], | 99.00th=[ 309], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 222, per=25.40%, avg=114.29, stdev=49.48, samples=110 iops : min= 1, max= 13, avg= 6.40, stdev= 3.16, samples=110 lat (msec) : 10=2.47%, 20=15.76%, 50=23.18%, 100=34.24%, 250=23.57% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.73%, ctx=1429, 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=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=145515: Wed Aug 26 04:46:23 2026 read: IOPS=6, BW=103KiB/s (105kB/s)(5744KiB/55980msec) clat (msec): min=6, max=330, avg=35.06, stdev=36.12 lat (msec): min=6, max=330, avg=35.07, stdev=36.12 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 73], 95.00th=[ 105], | 99.00th=[ 163], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 22, max= 414, per=26.80%, avg=114.45, stdev=75.06, samples=98 iops : min= 1, max= 25, avg= 6.42, stdev= 4.70, samples=98 write: IOPS=7, BW=117KiB/s (120kB/s)(6544KiB/55980msec); 0 zone resets clat (msec): min=34, max=346, avg=105.92, stdev=50.56 lat (msec): min=34, max=346, avg=105.93, stdev=50.56 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 60], 20.00th=[ 68], | 30.00th=[ 75], 40.00th=[ 84], 50.00th=[ 91], 60.00th=[ 104], | 70.00th=[ 118], 80.00th=[ 138], 90.00th=[ 167], 95.00th=[ 207], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 224, per=26.26%, avg=118.19, stdev=49.31, samples=108 iops : min= 1, max= 14, avg= 6.64, stdev= 3.16, samples=108 lat (msec) : 10=3.26%, 20=15.63%, 50=22.40%, 100=34.38%, 250=22.92% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.68%, ctx=1381, 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=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=145516: Wed Aug 26 04:46:23 2026 read: IOPS=7, BW=115KiB/s (118kB/s)(6256KiB/54519msec) clat (msec): min=6, max=184, avg=32.77, stdev=26.59 lat (msec): min=6, max=184, avg=32.77, stdev=26.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 63], 95.00th=[ 89], | 99.00th=[ 138], 99.50th=[ 174], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 22, max= 320, per=28.39%, avg=121.21, stdev=77.39, samples=102 iops : min= 1, max= 20, avg= 6.82, stdev= 4.91, samples=102 write: IOPS=6, BW=111KiB/s (113kB/s)(6032KiB/54519msec); 0 zone resets clat (msec): min=32, max=401, avg=110.41, stdev=54.96 lat (msec): min=32, max=401, avg=110.42, stdev=54.96 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 54], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 79], 40.00th=[ 86], 50.00th=[ 97], 60.00th=[ 107], | 70.00th=[ 120], 80.00th=[ 144], 90.00th=[ 171], 95.00th=[ 207], | 99.00th=[ 351], 99.50th=[ 355], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 222, per=24.43%, avg=109.95, stdev=46.19, samples=107 iops : min= 1, max= 13, avg= 6.13, stdev= 2.96, samples=107 lat (msec) : 10=3.39%, 20=17.58%, 50=22.14%, 100=32.81%, 250=22.27% lat (msec) : 500=1.82% cpu : usr=0.06%, sys=1.72%, ctx=1444, 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=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=145517: Wed Aug 26 04:46:23 2026 read: IOPS=6, BW=110KiB/s (112kB/s)(6032KiB/54963msec) clat (msec): min=6, max=368, avg=34.50, stdev=37.71 lat (msec): min=6, max=368, avg=34.50, stdev=37.71 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 59], 95.00th=[ 94], | 99.00th=[ 220], 99.50th=[ 363], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 352, per=26.67%, avg=113.89, stdev=68.67, samples=103 iops : min= 1, max= 22, avg= 6.39, stdev= 4.38, samples=103 write: IOPS=7, BW=114KiB/s (117kB/s)(6256KiB/54963msec); 0 zone resets clat (msec): min=39, max=346, avg=107.12, stdev=43.26 lat (msec): min=39, max=346, avg=107.12, stdev=43.26 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 73], | 30.00th=[ 82], 40.00th=[ 88], 50.00th=[ 96], 60.00th=[ 107], | 70.00th=[ 118], 80.00th=[ 138], 90.00th=[ 171], 95.00th=[ 190], | 99.00th=[ 239], 99.50th=[ 247], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 223, per=25.19%, avg=113.37, stdev=43.54, samples=108 iops : min= 1, max= 13, avg= 6.35, stdev= 2.78, samples=108 lat (msec) : 10=2.08%, 20=15.49%, 50=25.65%, 100=30.21%, 250=26.17% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.62%, ctx=1328, 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=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=428KiB/s (438kB/s), 103KiB/s-115KiB/s (105kB/s-118kB/s), io=23.4MiB (24.5MB), run=54519-55980msec WRITE: bw=450KiB/s (461kB/s), 111KiB/s-117KiB/s (113kB/s-120kB/s), io=24.6MiB (25.8MB), run=54519-55980msec 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=145536: Wed Aug 26 04:46:37 2026 read: IOPS=2, BW=2064KiB/s (2113kB/s)(7168KiB/3473msec) clat (msec): min=135, max=295, avg=208.42, stdev=68.35 lat (msec): min=135, max=295, avg=208.42, stdev=68.35 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 138], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 220], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 292], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1943, max= 5565, per=61.76%, avg=2896.50, stdev=1779.58, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=1, BW=1474KiB/s (1510kB/s)(5120KiB/3473msec); 0 zone resets clat (msec): min=262, max=557, avg=397.02, stdev=124.73 lat (msec): min=262, max=557, avg=397.10, stdev=124.74 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1943, max= 2043, per=30.70%, avg=2016.00, stdev=48.81, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=19.90%, ctx=362, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145537: Wed Aug 26 04:46:37 2026 read: IOPS=0, BW=469KiB/s (480kB/s)(2048KiB/4366msec) clat (msec): min=87, max=151, avg=119.36, stdev=45.06 lat (msec): min=87, max=151, avg=119.36, stdev=45.06 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 88], 60.00th=[ 153], | 70.00th=[ 153], 80.00th=[ 153], 90.00th=[ 153], 95.00th=[ 153], | 99.00th=[ 153], 99.50th=[ 153], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 1851, max= 2027, per=41.34%, avg=1939.00, stdev=124.45, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2345KiB/s (2402kB/s)(10.0MiB/4366msec); 0 zone resets clat (msec): min=96, max=782, avg=400.32, stdev=277.30 lat (msec): min=96, max=782, avg=400.43, stdev=277.28 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 97], | 30.00th=[ 102], 40.00th=[ 228], 50.00th=[ 334], 60.00th=[ 372], | 70.00th=[ 542], 80.00th=[ 667], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1943, max= 8175, per=46.34%, avg=3043.00, stdev=2514.43, samples=6 iops : min= 1, max= 7, avg= 2.00, stdev= 2.45, samples=6 lat (msec) : 100=25.00%, 250=25.00%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=18.01%, ctx=161, 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=145538: Wed Aug 26 04:46:37 2026 read: IOPS=1, BW=1664KiB/s (1704kB/s)(6144KiB/3693msec) clat (usec): min=524, max=309463, avg=167690.34, stdev=148576.66 lat (usec): min=525, max=309463, avg=167701.08, stdev=148571.93 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[111674], 50.00th=[111674], 60.00th=[274727], | 70.00th=[308282], 80.00th=[308282], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 2035, max= 6131, per=72.56%, avg=3403.00, stdev=2362.52, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1664KiB/s (1704kB/s)(6144KiB/3693msec); 0 zone resets clat (msec): min=175, max=673, avg=432.32, stdev=185.42 lat (msec): min=175, max=673, avg=432.38, stdev=185.42 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 514], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2027, max= 3886, per=36.63%, avg=2405.20, stdev=827.81, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=16.67%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=18.45%, ctx=364, 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=145539: Wed Aug 26 04:46:37 2026 read: IOPS=1, BW=1422KiB/s (1456kB/s)(5120KiB/3600msec) clat (usec): min=957, max=255458, avg=180205.03, stdev=102352.97 lat (usec): min=958, max=255459, avg=180206.40, stdev=102353.08 clat percentiles (usec): | 1.00th=[ 955], 5.00th=[ 955], 10.00th=[ 955], 20.00th=[ 955], | 30.00th=[196084], 40.00th=[196084], 50.00th=[223347], 60.00th=[223347], | 70.00th=[225444], 80.00th=[225444], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 2035, max= 6131, per=87.06%, avg=4083.00, stdev=2896.31, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1991KiB/s (2039kB/s)(7168KiB/3600msec); 0 zone resets clat (msec): min=131, max=1070, avg=368.93, stdev=317.31 lat (msec): min=131, max=1070, avg=369.17, stdev=317.58 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 205], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 271], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 363], 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= 1935, max= 3886, per=35.43%, avg=2326.83, stdev=764.90, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=22.09%, ctx=318, 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=4691KiB/s (4803kB/s), 469KiB/s-2064KiB/s (480kB/s-2113kB/s), io=20.0MiB (20.0MB), run=3473-4366msec WRITE: bw=6567KiB/s (6725kB/s), 1474KiB/s-2345KiB/s (1510kB/s-2402kB/s), io=28.0MiB (29.4MB), run=3473-4366msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145541: Wed Aug 26 04:46:38 2026 read: IOPS=1, BW=1657KiB/s (1697kB/s)(7168KiB/4326msec) clat (msec): min=112, max=714, avg=391.71, stdev=236.14 lat (msec): min=112, max=714, avg=391.71, stdev=236.14 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 163], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 447], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 592], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1799, max= 2043, per=49.06%, avg=1949.17, stdev=98.74, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=1, BW=1184KiB/s (1212kB/s)(5120KiB/4326msec); 0 zone resets clat (msec): min=152, max=340, avg=263.33, stdev=69.41 lat (msec): min=153, max=340, avg=263.41, stdev=69.41 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 2043, max= 4087, per=48.97%, avg=2724.33, stdev=1180.10, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=6.57%, ctx=117, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145542: Wed Aug 26 04:46:38 2026 read: IOPS=0, BW=397KiB/s (407kB/s)(2048KiB/5154msec) clat (msec): min=106, max=128, avg=117.35, stdev=15.93 lat (msec): min=106, max=128, avg=117.35, stdev=15.93 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 1815, max= 2019, per=48.25%, avg=1917.00, stdev=144.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1987KiB/s (2034kB/s)(10.0MiB/5154msec); 0 zone resets clat (msec): min=132, max=1382, avg=478.95, stdev=434.22 lat (msec): min=132, max=1382, avg=479.03, stdev=434.22 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 176], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 226], 60.00th=[ 228], | 70.00th=[ 502], 80.00th=[ 609], 90.00th=[ 1099], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 2019, max= 4087, per=51.19%, avg=2847.80, stdev=1113.11, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=66.67%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=6.31%, ctx=110, 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=145543: Wed Aug 26 04:46:38 2026 read: IOPS=1, BW=1266KiB/s (1296kB/s)(6144KiB/4854msec) clat (msec): min=81, max=1319, avg=321.10, stdev=490.27 lat (msec): min=81, max=1319, avg=321.11, stdev=490.27 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 89], | 30.00th=[ 89], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 136], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1799, max= 6071, per=82.97%, avg=3296.33, stdev=2405.45, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1266KiB/s (1296kB/s)(6144KiB/4854msec); 0 zone resets clat (msec): min=128, max=1008, avg=471.04, stdev=362.88 lat (msec): min=128, max=1008, avg=471.24, stdev=362.97 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 600], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1799, max= 2043, per=35.21%, avg=1958.80, stdev=103.38, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=50.00%, 750=16.67%, 2000=16.67% cpu : usr=0.02%, sys=5.05%, ctx=99, 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=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=145544: Wed Aug 26 04:46:38 2026 read: IOPS=0, BW=1004KiB/s (1028kB/s)(5120KiB/5098msec) clat (msec): min=85, max=537, avg=310.81, stdev=211.36 lat (msec): min=85, max=537, avg=310.81, stdev=211.36 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 456], 80.00th=[ 456], 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= 2019, max= 2043, per=51.15%, avg=2032.00, stdev=12.81, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1406KiB/s (1440kB/s)(7168KiB/5098msec); 0 zone resets clat (msec): min=101, max=996, avg=481.70, stdev=381.21 lat (msec): min=101, max=996, avg=481.90, stdev=381.12 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 176], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 264], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 953], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1799, max= 4087, per=44.13%, avg=2454.75, stdev=1092.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=4.36%, ctx=118, 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=3974KiB/s (4069kB/s), 397KiB/s-1657KiB/s (407kB/s-1697kB/s), io=20.0MiB (20.0MB), run=4326-5154msec WRITE: bw=5563KiB/s (5697kB/s), 1184KiB/s-1987KiB/s (1212kB/s-2034kB/s), io=28.0MiB (29.4MB), run=4326-5154msec 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=145550: Wed Aug 26 04:46:48 2026 read: IOPS=1, BW=7797KiB/s (7984kB/s)(12.0MiB/1576msec) clat (msec): min=404, max=569, avg=486.41, stdev=82.56 lat (msec): min=404, max=569, avg=486.41, stdev=82.56 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 5688, max= 8175, per=66.68%, avg=6931.50, stdev=1758.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=8.89%, ctx=79, 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=145551: Wed Aug 26 04:46:48 2026 read: IOPS=0, BW=2975KiB/s (3046kB/s)(4096KiB/1377msec) clat (nsec): min=186069k, max=186069k, avg=186069042.00, stdev= 0.00 lat (nsec): min=186072k, max=186072k, avg=186071551.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 5618, max= 5618, per=54.05%, avg=5618.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5949KiB/s (6092kB/s)(8192KiB/1377msec); 0 zone resets clat (msec): min=535, max=608, avg=572.03, stdev=51.34 lat (msec): min=536, max=609, avg=572.82, stdev=52.01 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 8175, max= 8175, per=56.76%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=11.70%, 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=145552: Wed Aug 26 04:46:48 2026 write: IOPS=1, BW=5401KiB/s (5531kB/s)(12.0MiB/2275msec); 0 zone resets clat (msec): min=532, max=941, avg=712.86, stdev=208.91 lat (msec): min=532, max=942, avg=713.18, stdev=208.90 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7953, max= 8175, per=55.99%, avg=8064.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=5.36%, ctx=59, 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=145553: Wed Aug 26 04:46:48 2026 write: IOPS=1, BW=6222KiB/s (6371kB/s)(12.0MiB/1975msec); 0 zone resets clat (msec): min=351, max=1142, avg=629.06, stdev=445.07 lat (msec): min=352, max=1142, avg=629.69, stdev=444.91 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 5769, max= 8175, per=48.41%, avg=6972.00, stdev=1701.30, 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=8.11%, ctx=43, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=10.2MiB/s (10.6MB/s), 2975KiB/s-7797KiB/s (3046kB/s-7984kB/s), io=16.0MiB (16.8MB), run=1377-1576msec WRITE: bw=14.1MiB/s (14.7MB/s), 5401KiB/s-6222KiB/s (5531kB/s-6371kB/s), io=32.0MiB (33.6MB), run=1377-2275msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145555: Wed Aug 26 04:46:49 2026 read: IOPS=1, BW=5317KiB/s (5445kB/s)(12.0MiB/2311msec) clat (msec): min=720, max=864, avg=769.21, stdev=82.48 lat (msec): min=720, max=864, avg=769.21, stdev=82.48 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=17.66%, ctx=436, 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=145556: Wed Aug 26 04:46:49 2026 read: IOPS=0, BW=1857KiB/s (1901kB/s)(4096KiB/2206msec) clat (nsec): min=880520k, max=880520k, avg=880519632.00, stdev= 0.00 lat (nsec): min=880521k, max=880521k, avg=880520885.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 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=3714KiB/s (3803kB/s)(8192KiB/2206msec); 0 zone resets clat (msec): min=365, max=958, avg=661.90, stdev=418.90 lat (msec): min=365, max=958, avg=662.23, stdev=418.96 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 961], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8192, max= 8192, per=66.48%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.61%, ctx=253, 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=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=145557: Wed Aug 26 04:46:49 2026 write: IOPS=1, BW=4621KiB/s (4732kB/s)(12.0MiB/2659msec); 0 zone resets clat (msec): min=268, max=1487, avg=884.89, stdev=609.20 lat (msec): min=271, max=1487, avg=886.03, stdev=608.24 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8192, max= 8192, per=66.48%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.43%, ctx=87, 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=145558: Wed Aug 26 04:46:49 2026 write: IOPS=1, BW=5922KiB/s (6064kB/s)(12.0MiB/2075msec); 0 zone resets clat (msec): min=325, max=1311, avg=690.94, stdev=540.21 lat (msec): min=326, max=1311, avg=691.21, stdev=540.09 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 5970, max= 5970, per=48.45%, avg=5970.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=9.40%, ctx=73, 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=7090KiB/s (7260kB/s), 1857KiB/s-5317KiB/s (1901kB/s-5445kB/s), io=16.0MiB (16.8MB), run=2206-2311msec WRITE: bw=12.0MiB/s (12.6MB/s), 3714KiB/s-5922KiB/s (3803kB/s-6064kB/s), io=32.0MiB (33.6MB), run=2075-2659msec