== sanity test 398b: DIO and buffer IO race ============== 12:28:05 (1783960085) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.7563 s, 5.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178490: Mon Jul 13 12:30:31 2026 read: IOPS=12, BW=49.1KiB/s (50.3kB/s)(5992KiB/122071msec) clat (usec): min=38, max=833674, avg=45166.04, stdev=35350.55 lat (usec): min=40, max=833674, avg=45170.83, stdev=35349.96 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 12256], 10.00th=[ 17171], 20.00th=[ 23200], | 30.00th=[ 27919], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[100140], | 99.00th=[149947], 99.50th=[164627], 99.90th=[246416], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 119, per=25.38%, avg=48.73, stdev=19.12, samples=240 iops : min= 1, max= 29, avg=11.51, stdev= 4.82, samples=240 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(6296KiB/122071msec); 0 zone resets clat (usec): min=966, max=223476, avg=34364.77, stdev=34486.87 lat (usec): min=968, max=223477, avg=34368.25, stdev=34485.36 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 1876], 20.00th=[ 4424], | 30.00th=[ 8717], 40.00th=[ 16909], 50.00th=[ 25822], 60.00th=[ 32900], | 70.00th=[ 43779], 80.00th=[ 59507], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[152044], 99.50th=[175113], 99.90th=[208667], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 7, max= 126, per=25.46%, avg=51.18, stdev=20.56, samples=240 iops : min= 1, max= 31, avg=12.13, stdev= 5.19, samples=240 lat (usec) : 50=0.07%, 100=1.30%, 250=0.07%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.37%, 4=4.07%, 10=7.06%, 20=11.39%, 50=41.73% lat (msec) : 100=23.31%, 250=5.40%, 1000=0.03% cpu : usr=0.09%, sys=5.65%, ctx=6765, 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=178491: Mon Jul 13 12:30:31 2026 read: IOPS=12, BW=48.6KiB/s (49.7kB/s)(5940KiB/122326msec) clat (usec): min=35, max=291922, avg=45560.08, stdev=29062.57 lat (usec): min=35, max=291925, avg=45562.19, stdev=29062.58 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 12649], 10.00th=[ 17171], 20.00th=[ 22414], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 64750], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[141558], 99.50th=[179307], 99.90th=[202376], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 110, per=25.07%, avg=48.14, stdev=17.42, samples=240 iops : min= 1, max= 27, avg=11.36, stdev= 4.37, samples=240 write: IOPS=12, BW=51.9KiB/s (53.1kB/s)(6348KiB/122326msec); 0 zone resets clat (usec): min=1077, max=794920, avg=34205.44, stdev=37617.59 lat (usec): min=1079, max=794920, avg=34209.63, stdev=37620.80 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1516], 10.00th=[ 2180], 20.00th=[ 4948], | 30.00th=[ 9241], 40.00th=[ 18220], 50.00th=[ 26346], 60.00th=[ 34866], | 70.00th=[ 42730], 80.00th=[ 56361], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[141558], 99.50th=[162530], 99.90th=[263193], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 126, per=25.55%, avg=51.35, stdev=23.34, samples=240 iops : min= 1, max= 31, avg=12.18, stdev= 5.88, samples=240 lat (usec) : 50=0.16%, 100=1.50%, 500=0.03% lat (msec) : 2=4.95%, 4=3.74%, 10=7.65%, 20=10.90%, 50=41.54% lat (msec) : 100=24.84%, 250=4.59%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.74%, ctx=6737, 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=178492: Mon Jul 13 12:30:31 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(6028KiB/124710msec) clat (usec): min=43, max=242059, avg=45335.97, stdev=30592.67 lat (usec): min=44, max=242061, avg=45355.13, stdev=30597.85 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11731], 10.00th=[ 17171], 20.00th=[ 22152], | 30.00th=[ 27919], 40.00th=[ 33424], 50.00th=[ 39060], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[149947], 99.50th=[191890], 99.90th=[235930], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 111, per=24.86%, avg=47.74, stdev=19.52, samples=246 iops : min= 1, max= 27, avg=11.27, stdev= 4.94, samples=246 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(6260KiB/124710msec); 0 zone resets clat (usec): min=863, max=755136, avg=35784.72, stdev=39170.54 lat (usec): min=863, max=755138, avg=35787.91, stdev=39170.71 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1467], 10.00th=[ 2040], 20.00th=[ 4686], | 30.00th=[ 9896], 40.00th=[ 18744], 50.00th=[ 26346], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 60556], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[145753], 99.50th=[170918], 99.90th=[261096], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 7, max= 127, per=24.72%, avg=49.68, stdev=21.96, samples=245 iops : min= 1, max= 31, avg=11.76, stdev= 5.54, samples=245 lat (usec) : 50=0.20%, 100=1.53%, 250=0.13%, 500=0.10%, 1000=0.07% lat (msec) : 2=5.01%, 4=3.87%, 10=6.80%, 20=10.90%, 50=40.85% lat (msec) : 100=24.93%, 250=5.50%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.48%, ctx=6826, 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=178493: Mon Jul 13 12:30:31 2026 read: IOPS=12, BW=49.8KiB/s (51.0kB/s)(6052KiB/121429msec) clat (usec): min=38, max=304582, avg=44506.28, stdev=29994.44 lat (usec): min=38, max=304583, avg=44507.77, stdev=29994.31 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11600], 10.00th=[ 16581], 20.00th=[ 22152], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[154141], 99.50th=[179307], 99.90th=[270533], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 118, per=25.80%, avg=49.54, stdev=19.41, samples=239 iops : min= 1, max= 29, avg=11.71, stdev= 4.91, samples=239 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(6236KiB/121429msec); 0 zone resets clat (usec): min=1033, max=803380, avg=34430.18, stdev=39877.13 lat (usec): min=1034, max=803381, avg=34433.56, stdev=39877.77 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1467], 10.00th=[ 2073], 20.00th=[ 4752], | 30.00th=[ 8586], 40.00th=[ 15926], 50.00th=[ 23725], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 58983], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[156238], 99.50th=[189793], 99.90th=[258999], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 119, per=25.51%, avg=51.28, stdev=21.70, samples=238 iops : min= 1, max= 29, avg=12.15, stdev= 5.47, samples=238 lat (usec) : 50=0.16%, 100=1.27%, 250=0.07%, 500=0.03%, 750=0.03% lat (msec) : 2=4.72%, 4=4.13%, 10=8.14%, 20=11.85%, 50=40.62% lat (msec) : 100=24.28%, 250=4.52%, 500=0.13%, 1000=0.03% cpu : usr=0.10%, sys=5.63%, ctx=6568, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=193KiB/s (197kB/s), 48.3KiB/s-49.8KiB/s (49.5kB/s-51.0kB/s), io=23.4MiB (24.6MB), run=121429-124710msec WRITE: bw=202KiB/s (206kB/s), 50.2KiB/s-51.9KiB/s (51.4kB/s-53.1kB/s), io=24.6MiB (25.7MB), run=121429-124710msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178495: Mon Jul 13 12:31:05 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5992KiB/156399msec) clat (msec): min=4, max=642, avg=41.07, stdev=40.64 lat (msec): min=4, max=642, avg=41.07, stdev=40.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 60], 90.00th=[ 91], 95.00th=[ 122], | 99.00th=[ 197], 99.50th=[ 218], 99.90th=[ 268], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 158, per=25.36%, avg=38.30, stdev=28.07, samples=305 iops : min= 1, max= 39, avg= 8.94, stdev= 7.05, samples=305 write: IOPS=10, BW=40.3KiB/s (41.2kB/s)(6296KiB/156399msec); 0 zone resets clat (msec): min=11, max=286, avg=60.17, stdev=42.82 lat (msec): min=11, max=286, avg=60.18, stdev=42.82 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 47], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 117], 95.00th=[ 153], | 99.00th=[ 213], 99.50th=[ 232], 99.90th=[ 264], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 134, per=25.44%, avg=40.20, stdev=25.82, samples=305 iops : min= 1, max= 33, avg= 9.42, stdev= 6.52, samples=305 lat (msec) : 10=2.60%, 20=18.68%, 50=42.77%, 100=24.15%, 250=11.56% lat (msec) : 500=0.20%, 750=0.03% cpu : usr=0.07%, sys=2.30%, ctx=4663, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178496: Mon Jul 13 12:31:05 2026 read: IOPS=9, BW=37.5KiB/s (38.3kB/s)(5940KiB/158605msec) clat (msec): min=4, max=785, avg=42.46, stdev=45.19 lat (msec): min=4, max=785, avg=42.46, stdev=45.19 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 194], 99.50th=[ 239], 99.90th=[ 279], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 151, per=25.53%, avg=38.55, stdev=28.01, samples=300 iops : min= 1, max= 37, avg= 9.00, stdev= 7.07, samples=300 write: IOPS=10, BW=40.0KiB/s (40.0kB/s)(6348KiB/158605msec); 0 zone resets clat (msec): min=10, max=355, avg=60.11, stdev=45.61 lat (msec): min=10, max=355, avg=60.11, stdev=45.61 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 89], 90.00th=[ 123], 95.00th=[ 153], | 99.00th=[ 222], 99.50th=[ 253], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7, max= 143, per=24.98%, avg=39.47, stdev=27.81, samples=312 iops : min= 1, max= 35, avg= 9.24, stdev= 7.01, samples=312 lat (msec) : 10=3.32%, 20=18.75%, 50=42.06%, 100=23.14%, 250=12.27% lat (msec) : 500=0.42%, 1000=0.03% cpu : usr=0.06%, sys=2.21%, ctx=4750, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178497: Mon Jul 13 12:31:05 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(6028KiB/157300msec) clat (msec): min=5, max=389, avg=40.76, stdev=38.46 lat (msec): min=5, max=389, avg=40.77, stdev=38.46 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 61], 90.00th=[ 93], 95.00th=[ 121], | 99.00th=[ 174], 99.50th=[ 226], 99.90th=[ 317], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 191, per=25.59%, avg=38.65, stdev=28.54, samples=302 iops : min= 1, max= 47, avg= 9.03, stdev= 7.19, samples=302 write: IOPS=9, BW=39.8KiB/s (40.8kB/s)(6260KiB/157300msec); 0 zone resets clat (msec): min=10, max=833, avg=61.17, stdev=47.96 lat (msec): min=10, max=833, avg=61.17, stdev=47.96 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 46], 60.00th=[ 59], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 118], 95.00th=[ 150], | 99.00th=[ 222], 99.50th=[ 253], 99.90th=[ 317], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 127, per=25.13%, avg=39.71, stdev=26.50, samples=305 iops : min= 1, max= 31, avg= 9.30, stdev= 6.68, samples=305 lat (msec) : 10=3.32%, 20=18.55%, 50=42.29%, 100=24.32%, 250=11.10% lat (msec) : 500=0.39%, 1000=0.03% cpu : usr=0.07%, sys=2.22%, ctx=4685, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178498: Mon Jul 13 12:31:05 2026 read: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6052KiB/157528msec) clat (msec): min=5, max=382, avg=40.94, stdev=39.22 lat (msec): min=5, max=382, avg=40.94, stdev=39.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 44], 80.00th=[ 63], 90.00th=[ 96], 95.00th=[ 122], | 99.00th=[ 188], 99.50th=[ 205], 99.90th=[ 309], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 183, per=25.80%, avg=38.95, stdev=29.15, samples=302 iops : min= 1, max= 45, avg= 9.11, stdev= 7.33, samples=302 write: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6236KiB/157528msec); 0 zone resets clat (msec): min=11, max=846, avg=61.23, stdev=50.00 lat (msec): min=11, max=846, avg=61.23, stdev=50.00 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 124], 95.00th=[ 157], | 99.00th=[ 228], 99.50th=[ 264], 99.90th=[ 355], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 127, per=25.30%, avg=39.97, stdev=27.09, samples=303 iops : min= 1, max= 31, avg= 9.36, stdev= 6.84, samples=303 lat (msec) : 10=3.12%, 20=20.05%, 50=41.63%, 100=23.01%, 250=11.72% lat (msec) : 500=0.42%, 1000=0.03% cpu : usr=0.06%, sys=2.19%, ctx=4821, 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=151KiB/s (155kB/s), 37.5KiB/s-38.4KiB/s (38.3kB/s-39.3kB/s), io=23.4MiB (24.6MB), run=156399-158605msec WRITE: bw=159KiB/s (162kB/s), 39.6KiB/s-40.3KiB/s (40.5kB/s-41.2kB/s), io=24.6MiB (25.7MB), run=156399-158605msec 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=178546: Mon Jul 13 12:31:48 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(5920KiB/31726msec) clat (usec): min=47, max=155791, avg=42282.76, stdev=24001.83 lat (usec): min=47, max=155792, avg=42284.36, stdev=24001.80 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 126], 10.00th=[ 17171], 20.00th=[ 24511], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 38536], 60.00th=[ 44303], | 70.00th=[ 50594], 80.00th=[ 61604], 90.00th=[ 71828], 95.00th=[ 85459], | 99.00th=[113771], 99.50th=[131597], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 31, max= 414, per=25.01%, avg=188.54, stdev=74.58, samples=61 iops : min= 1, max= 25, avg=10.98, stdev= 4.70, samples=61 write: IOPS=12, BW=201KiB/s (206kB/s)(6368KiB/31726msec); 0 zone resets clat (usec): min=1486, max=274515, avg=39751.40, stdev=39571.45 lat (usec): min=1487, max=274518, avg=39761.29, stdev=39569.82 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2278], 10.00th=[ 3490], 20.00th=[ 7373], | 30.00th=[ 12780], 40.00th=[ 19268], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[177210], 99.50th=[221250], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 29, max= 411, per=25.26%, avg=200.55, stdev=83.30, samples=62 iops : min= 1, max= 25, avg=11.73, stdev= 5.25, samples=62 lat (usec) : 50=0.26%, 100=2.08%, 250=0.26%, 750=0.13% lat (msec) : 2=1.43%, 4=5.73%, 10=6.25%, 20=11.98%, 50=39.58% lat (msec) : 100=27.99%, 250=4.17%, 500=0.13% cpu : usr=0.11%, sys=6.11%, ctx=1814, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178547: Mon Jul 13 12:31:48 2026 read: IOPS=11, BW=187KiB/s (192kB/s)(5744KiB/30683msec) clat (usec): min=47, max=220120, avg=45831.41, stdev=29883.80 lat (usec): min=48, max=220121, avg=45832.83, stdev=29883.79 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 11994], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 48497], | 70.00th=[ 55837], 80.00th=[ 66323], 90.00th=[ 80217], 95.00th=[ 90702], | 99.00th=[149947], 99.50th=[189793], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 62, max= 349, per=24.73%, avg=186.45, stdev=64.66, samples=60 iops : min= 3, max= 21, avg=10.85, stdev= 4.09, samples=60 write: IOPS=13, BW=213KiB/s (218kB/s)(6544KiB/30683msec); 0 zone resets clat (usec): min=1690, max=174015, avg=34648.16, stdev=31452.25 lat (usec): min=1693, max=174016, avg=34653.98, stdev=31449.74 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 2540], 10.00th=[ 3785], 20.00th=[ 7832], | 30.00th=[ 11469], 40.00th=[ 18744], 50.00th=[ 26084], 60.00th=[ 34341], | 70.00th=[ 43779], 80.00th=[ 58983], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[132645], 99.50th=[145753], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 63, max= 411, per=26.70%, avg=212.02, stdev=85.47, samples=60 iops : min= 3, max= 25, avg=12.47, stdev= 5.44, samples=60 lat (usec) : 50=0.13%, 100=3.65%, 250=0.39% lat (msec) : 2=1.17%, 4=4.95%, 10=8.59%, 20=9.51%, 50=40.62% lat (msec) : 100=27.08%, 250=3.91% cpu : usr=0.11%, sys=6.22%, ctx=1758, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178548: Mon Jul 13 12:31:48 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(6256KiB/29365msec) clat (usec): min=40, max=177610, avg=42676.29, stdev=26039.99 lat (usec): min=40, max=177612, avg=42677.68, stdev=26040.03 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 74], 10.00th=[ 15401], 20.00th=[ 24249], | 30.00th=[ 28967], 40.00th=[ 33817], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 53216], 80.00th=[ 61604], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[122160], 99.50th=[145753], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 95, max= 383, per=28.78%, avg=217.04, stdev=73.05, samples=57 iops : min= 5, max= 23, avg=12.75, stdev= 4.59, samples=57 write: IOPS=12, BW=205KiB/s (210kB/s)(6032KiB/29365msec); 0 zone resets clat (usec): min=1757, max=182111, avg=32537.09, stdev=32771.20 lat (usec): min=1759, max=182114, avg=32574.66, stdev=32767.93 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2180], 10.00th=[ 3130], 20.00th=[ 6128], | 30.00th=[ 8979], 40.00th=[ 14484], 50.00th=[ 21365], 60.00th=[ 30016], | 70.00th=[ 39060], 80.00th=[ 52691], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[154141], 99.50th=[170918], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 57, max= 538, per=25.68%, avg=203.86, stdev=90.09, samples=58 iops : min= 3, max= 33, avg=11.93, stdev= 5.72, samples=58 lat (usec) : 50=0.13%, 100=3.78%, 250=0.78% lat (msec) : 2=1.56%, 4=5.21%, 10=8.85%, 20=9.90%, 50=42.06% lat (msec) : 100=23.96%, 250=3.78% cpu : usr=0.09%, sys=6.25%, ctx=1736, 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=178549: Mon Jul 13 12:31:48 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28691msec) clat (usec): min=37, max=213919, avg=42095.86, stdev=27719.15 lat (usec): min=38, max=213921, avg=42097.14, stdev=27719.20 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 69], 10.00th=[ 289], 20.00th=[ 22938], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 60556], 90.00th=[ 73925], 95.00th=[ 87557], | 99.00th=[141558], 99.50th=[166724], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 416, per=27.70%, avg=208.88, stdev=71.92, samples=56 iops : min= 1, max= 26, avg=12.25, stdev= 4.57, samples=56 write: IOPS=13, BW=218KiB/s (223kB/s)(6256KiB/28691msec); 0 zone resets clat (usec): min=1748, max=195262, avg=32045.25, stdev=32167.22 lat (usec): min=1750, max=195263, avg=32053.56, stdev=32162.39 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2343], 10.00th=[ 3687], 20.00th=[ 6128], | 30.00th=[ 9372], 40.00th=[ 14877], 50.00th=[ 23462], 60.00th=[ 31065], | 70.00th=[ 38011], 80.00th=[ 50594], 90.00th=[ 71828], 95.00th=[100140], | 99.00th=[135267], 99.50th=[187696], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 61, max= 447, per=27.44%, avg=217.91, stdev=85.52, samples=56 iops : min= 3, max= 27, avg=12.82, stdev= 5.37, samples=56 lat (usec) : 50=0.26%, 100=4.43%, 250=0.13%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=0.91%, 4=4.82%, 10=10.03%, 20=10.68%, 50=40.49% lat (msec) : 100=23.83%, 250=3.91% cpu : usr=0.09%, sys=6.90%, ctx=1666, 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=755KiB/s (773kB/s), 187KiB/s-213KiB/s (191kB/s-218kB/s), io=23.4MiB (24.5MB), run=28691-31726msec WRITE: bw=794KiB/s (813kB/s), 201KiB/s-218KiB/s (206kB/s-223kB/s), io=24.6MiB (25.8MB), run=28691-31726msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178550: Mon Jul 13 12:31:58 2026 read: IOPS=8, BW=141KiB/s (145kB/s)(5920KiB/41862msec) clat (msec): min=8, max=258, avg=45.16, stdev=39.92 lat (msec): min=8, max=258, avg=45.17, stdev=39.92 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 100], 95.00th=[ 131], | 99.00th=[ 201], 99.50th=[ 234], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 446, per=24.17%, avg=138.27, stdev=80.40, samples=82 iops : min= 1, max= 27, avg= 7.85, stdev= 5.06, samples=82 write: IOPS=9, BW=152KiB/s (156kB/s)(6368KiB/41862msec); 0 zone resets clat (msec): min=15, max=225, avg=62.84, stdev=39.28 lat (msec): min=15, max=225, avg=62.85, stdev=39.28 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 97], 90.00th=[ 122], 95.00th=[ 140], | 99.00th=[ 182], 99.50th=[ 207], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 28, max= 414, per=25.32%, avg=152.17, stdev=82.83, samples=81 iops : min= 1, max= 25, avg= 8.74, stdev= 5.24, samples=81 lat (msec) : 10=0.78%, 20=11.85%, 50=47.66%, 100=25.39%, 250=14.19% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.33%, ctx=1264, 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=178551: Mon Jul 13 12:31:58 2026 read: IOPS=8, BW=139KiB/s (143kB/s)(5744KiB/41184msec) clat (msec): min=7, max=202, avg=42.97, stdev=34.34 lat (msec): min=7, max=202, avg=42.98, stdev=34.34 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 93], 95.00th=[ 120], | 99.00th=[ 159], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 28, max= 478, per=24.85%, avg=142.13, stdev=85.53, samples=79 iops : min= 1, max= 29, avg= 8.10, stdev= 5.41, samples=79 write: IOPS=9, BW=159KiB/s (163kB/s)(6544KiB/41184msec); 0 zone resets clat (msec): min=13, max=208, avg=62.28, stdev=35.83 lat (msec): min=13, max=208, avg=62.29, stdev=35.83 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 72], 80.00th=[ 85], 90.00th=[ 110], 95.00th=[ 146], | 99.00th=[ 182], 99.50th=[ 205], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 476, per=26.70%, avg=160.44, stdev=82.34, samples=80 iops : min= 1, max= 29, avg= 9.26, stdev= 5.21, samples=80 lat (msec) : 10=1.56%, 20=10.42%, 50=47.14%, 100=30.34%, 250=10.55% cpu : usr=0.06%, sys=2.23%, ctx=1193, 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=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=178552: Mon Jul 13 12:31:58 2026 read: IOPS=9, BW=152KiB/s (155kB/s)(6256KiB/41273msec) clat (msec): min=6, max=254, avg=46.09, stdev=37.49 lat (msec): min=6, max=254, avg=46.09, stdev=37.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 93], 95.00th=[ 126], | 99.00th=[ 171], 99.50th=[ 228], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 478, per=27.25%, avg=155.86, stdev=100.04, samples=79 iops : min= 1, max= 29, avg= 8.96, stdev= 6.37, samples=79 write: IOPS=9, BW=146KiB/s (150kB/s)(6032KiB/41273msec); 0 zone resets clat (msec): min=12, max=289, avg=60.91, stdev=36.79 lat (msec): min=12, max=289, avg=60.92, stdev=36.79 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 116], 95.00th=[ 132], | 99.00th=[ 171], 99.50th=[ 209], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 382, per=23.95%, avg=143.96, stdev=78.16, samples=81 iops : min= 1, max= 23, avg= 8.22, stdev= 4.89, samples=81 lat (msec) : 10=1.56%, 20=10.81%, 50=48.05%, 100=27.08%, 250=12.24% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=2.33%, ctx=1248, 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=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=178553: Mon Jul 13 12:31:58 2026 read: IOPS=9, BW=144KiB/s (148kB/s)(6032KiB/41869msec) clat (msec): min=6, max=223, avg=46.66, stdev=38.89 lat (msec): min=6, max=223, avg=46.66, stdev=38.89 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 72], 90.00th=[ 110], 95.00th=[ 136], | 99.00th=[ 171], 99.50th=[ 186], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 444, per=25.82%, avg=147.68, stdev=90.70, samples=79 iops : min= 1, max= 27, avg= 8.46, stdev= 5.72, samples=79 write: IOPS=9, BW=149KiB/s (153kB/s)(6256KiB/41869msec); 0 zone resets clat (msec): min=12, max=305, avg=61.22, stdev=40.29 lat (msec): min=12, max=305, avg=61.22, stdev=40.29 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 70], 80.00th=[ 86], 90.00th=[ 117], 95.00th=[ 128], | 99.00th=[ 218], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 414, per=24.50%, avg=147.24, stdev=83.51, samples=82 iops : min= 1, max= 25, avg= 8.43, stdev= 5.28, samples=82 lat (msec) : 10=1.43%, 20=11.59%, 50=47.27%, 100=26.56%, 250=12.76% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.35%, ctx=1278, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=572KiB/s (586kB/s), 139KiB/s-152KiB/s (143kB/s-155kB/s), io=23.4MiB (24.5MB), run=41184-41869msec WRITE: bw=602KiB/s (616kB/s), 146KiB/s-159KiB/s (150kB/s-163kB/s), io=24.6MiB (25.8MB), run=41184-41869msec 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=178566: Mon Jul 13 12:32:14 2026 read: IOPS=1, BW=1744KiB/s (1786kB/s)(7168KiB/4109msec) clat (msec): min=106, max=1286, avg=386.88, stdev=423.52 lat (msec): min=106, max=1286, avg=386.88, stdev=423.52 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 122], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 241], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 542], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 1577, max= 4096, per=54.78%, avg=2424.00, stdev=1133.37, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1246KiB/s (1276kB/s)(5120KiB/4109msec); 0 zone resets clat (msec): min=119, max=394, avg=222.79, stdev=118.27 lat (msec): min=119, max=394, avg=222.91, stdev=118.28 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 4047, max= 4096, per=65.72%, avg=4071.50, stdev=34.65, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 lat (msec) : 250=66.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.41%, ctx=96, 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=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=178567: Mon Jul 13 12:32:14 2026 read: IOPS=0, BW=443KiB/s (453kB/s)(2048KiB/4628msec) clat (msec): min=117, max=123, avg=120.22, stdev= 3.99 lat (msec): min=117, max=123, avg=120.22, stdev= 3.99 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 117], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 124], 95.00th=[ 124], | 99.00th=[ 124], 99.50th=[ 124], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 1635, max= 2048, per=41.62%, avg=1841.50, stdev=292.04, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2213KiB/s (2266kB/s)(10.0MiB/4628msec); 0 zone resets clat (msec): min=98, max=1480, avg=430.64, stdev=443.14 lat (msec): min=100, max=1480, avg=430.98, stdev=442.97 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 138], | 30.00th=[ 140], 40.00th=[ 163], 50.00th=[ 224], 60.00th=[ 296], | 70.00th=[ 326], 80.00th=[ 535], 90.00th=[ 911], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 2039, max= 4096, per=49.32%, avg=3055.50, stdev=1168.79, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=123, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178569: Mon Jul 13 12:32:14 2026 read: IOPS=1, BW=1407KiB/s (1440kB/s)(6144KiB/4368msec) clat (msec): min=63, max=214, avg=162.90, stdev=63.56 lat (msec): min=63, max=214, avg=162.90, stdev=63.56 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 207], | 70.00th=[ 209], 80.00th=[ 209], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 2023, max= 4047, per=57.38%, avg=2539.25, stdev=1005.22, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1407KiB/s (1440kB/s)(6144KiB/4368msec); 0 zone resets clat (msec): min=130, max=1647, avg=544.36, stdev=564.50 lat (msec): min=130, max=1647, avg=544.47, stdev=564.52 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 1494, max= 2048, per=31.08%, avg=1925.40, stdev=241.40, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.11%, ctx=82, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178571: Mon Jul 13 12:32:14 2026 read: IOPS=1, BW=1252KiB/s (1282kB/s)(5120KiB/4089msec) clat (msec): min=87, max=525, avg=296.78, stdev=199.08 lat (msec): min=87, max=525, avg=296.78, stdev=199.08 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2023, max= 6144, per=92.28%, avg=4083.50, stdev=2913.99, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1753KiB/s (1795kB/s)(7168KiB/4089msec); 0 zone resets clat (msec): min=149, max=575, avg=365.49, stdev=173.26 lat (msec): min=149, max=575, avg=365.58, stdev=173.26 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 234], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 305], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 542], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1477, max= 4047, per=37.42%, avg=2318.20, stdev=995.01, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=33.33% cpu : usr=0.02%, sys=9.30%, ctx=120, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4425KiB/s (4531kB/s), 443KiB/s-1744KiB/s (453kB/s-1786kB/s), io=20.0MiB (20.0MB), run=4089-4628msec WRITE: bw=6195KiB/s (6344kB/s), 1246KiB/s-2213KiB/s (1276kB/s-2266kB/s), io=28.0MiB (29.4MB), run=4089-4628msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178568: Mon Jul 13 12:32:15 2026 read: IOPS=2, BW=2951KiB/s (3022kB/s)(7168KiB/2429msec) clat (usec): min=525, max=239534, avg=159194.18, stdev=78137.54 lat (usec): min=526, max=239535, avg=159195.56, stdev=78137.67 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[149947], | 30.00th=[154141], 40.00th=[154141], 50.00th=[154141], 60.00th=[196084], | 70.00th=[196084], 80.00th=[217056], 90.00th=[240124], 95.00th=[240124], | 99.00th=[240124], 99.50th=[240124], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 2011, max= 4426, per=78.60%, avg=3380.00, stdev=1239.48, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2108KiB/s (2158kB/s)(5120KiB/2429msec); 0 zone resets clat (msec): min=131, max=475, avg=248.74, stdev=132.20 lat (msec): min=131, max=475, avg=248.80, stdev=132.21 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 224], 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= 1851, max= 4023, per=43.51%, avg=2619.33, stdev=1217.43, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=83.33%, 500=8.33% cpu : usr=0.00%, sys=22.28%, ctx=210, 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=178570: Mon Jul 13 12:32:15 2026 read: IOPS=0, BW=430KiB/s (440kB/s)(2048KiB/4762msec) clat (usec): min=775, max=165082, avg=82929.15, stdev=116182.27 lat (usec): min=777, max=165085, avg=82931.48, stdev=116183.63 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 775], 10.00th=[ 775], 20.00th=[ 775], | 30.00th=[ 775], 40.00th=[ 775], 50.00th=[ 775], 60.00th=[164627], | 70.00th=[164627], 80.00th=[164627], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 1577, max= 2031, per=41.95%, avg=1804.00, stdev=321.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2150KiB/s (2202kB/s)(10.0MiB/4762msec); 0 zone resets clat (msec): min=103, max=1042, avg=432.04, stdev=351.78 lat (msec): min=104, max=1042, avg=432.40, stdev=351.62 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 123], | 30.00th=[ 188], 40.00th=[ 249], 50.00th=[ 253], 60.00th=[ 300], | 70.00th=[ 330], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 2031, max= 6131, per=60.45%, avg=3639.20, stdev=1702.84, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=41.67%, 500=25.00%, 1000=16.67%, 2000=8.33% cpu : usr=0.04%, sys=12.62%, ctx=144, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178572: Mon Jul 13 12:32:15 2026 read: IOPS=1, BW=1377KiB/s (1410kB/s)(6144KiB/4463msec) clat (msec): min=92, max=289, avg=188.30, stdev=77.42 lat (msec): min=92, max=289, avg=188.30, stdev=77.42 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 218], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 4063, max= 4087, per=94.77%, avg=4075.00, stdev=16.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1377KiB/s (1410kB/s)(6144KiB/4463msec); 0 zone resets clat (msec): min=122, max=1591, avg=525.36, stdev=552.55 lat (msec): min=122, max=1591, avg=525.46, stdev=552.55 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 518], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 1654, max= 2043, per=31.97%, avg=1924.40, stdev=171.76, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=8.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=10.69%, ctx=188, 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=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=178573: Mon Jul 13 12:32:15 2026 read: IOPS=1, BW=1468KiB/s (1504kB/s)(5120KiB/3487msec) clat (usec): min=599, max=286036, avg=149567.72, stdev=137748.04 lat (usec): min=601, max=286038, avg=149569.22, stdev=137748.07 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], 20.00th=[ 603], | 30.00th=[ 3851], 40.00th=[ 3851], 50.00th=[202376], 60.00th=[202376], | 70.00th=[254804], 80.00th=[254804], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 2011, max= 4087, per=63.02%, avg=2709.67, stdev=1192.85, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2056KiB/s (2105kB/s)(7168KiB/3487msec); 0 zone resets clat (msec): min=156, max=1030, avg=368.20, stdev=301.61 lat (msec): min=156, max=1030, avg=368.31, stdev=301.61 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 224], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 262], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 401], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1612, max= 3968, per=39.96%, avg=2405.50, stdev=1059.39, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=13.94%, ctx=168, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4301KiB/s (4404kB/s), 430KiB/s-2951KiB/s (440kB/s-3022kB/s), io=20.0MiB (20.0MB), run=2429-4762msec WRITE: bw=6021KiB/s (6166kB/s), 1377KiB/s-2150KiB/s (1410kB/s-2202kB/s), io=28.0MiB (29.4MB), run=2429-4762msec 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=178581: Mon Jul 13 12:32:31 2026 read: IOPS=1, BW=4452KiB/s (4559kB/s)(12.0MiB/2760msec) clat (msec): min=816, max=961, avg=884.55, stdev=73.09 lat (msec): min=816, max=961, avg=884.55, stdev=73.08 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 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= 7801, max= 8159, per=100.00%, avg=7980.00, stdev=253.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=12.90%, ctx=330, 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=178582: Mon Jul 13 12:32:31 2026 read: IOPS=0, BW=1200KiB/s (1229kB/s)(4096KiB/3412msec) clat (nsec): min=839773k, max=839773k, avg=839773447.00, stdev= 0.00 lat (nsec): min=839776k, max=839776k, avg=839776339.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2401KiB/s (2459kB/s)(8192KiB/3412msec); 0 zone resets clat (msec): min=844, max=1577, avg=1211.27, stdev=518.48 lat (msec): min=845, max=1578, avg=1211.86, stdev=518.38 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7831, max= 7831, per=82.83%, avg=7831.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.45%, ctx=83, 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=178585: Mon Jul 13 12:32:31 2026 write: IOPS=0, BW=3545KiB/s (3630kB/s)(12.0MiB/3466msec); 0 zone resets clat (msec): min=824, max=1433, avg=1134.33, stdev=304.71 lat (msec): min=825, max=1434, avg=1135.30, stdev=304.31 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7922, max= 8159, per=85.05%, avg=8040.50, stdev=167.58, 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=4.21%, ctx=64, 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=178587: Mon Jul 13 12:32:31 2026 write: IOPS=0, BW=3672KiB/s (3761kB/s)(12.0MiB/3346msec); 0 zone resets clat (msec): min=330, max=1895, avg=1045.03, stdev=791.45 lat (msec): min=331, max=1896, avg=1045.45, stdev=791.39 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7937, max= 8159, per=85.13%, avg=8048.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.03%, sys=4.84%, ctx=71, 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=4802KiB/s (4917kB/s), 1200KiB/s-4452KiB/s (1229kB/s-4559kB/s), io=16.0MiB (16.8MB), run=2760-3412msec WRITE: bw=9454KiB/s (9681kB/s), 2401KiB/s-3672KiB/s (2459kB/s-3761kB/s), io=32.0MiB (33.6MB), run=3346-3466msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178583: Mon Jul 13 12:32:31 2026 read: IOPS=1, BW=4623KiB/s (4734kB/s)(12.0MiB/2658msec) clat (msec): min=275, max=1357, avg=829.88, stdev=541.29 lat (msec): min=275, max=1357, avg=829.88, stdev=541.29 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 6370, max= 8031, per=100.00%, avg=7200.50, stdev=1174.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.23%, ctx=68, 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=178584: Mon Jul 13 12:32:31 2026 read: IOPS=0, BW=1066KiB/s (1091kB/s)(4096KiB/3844msec) clat (nsec): min=1861.1M, max=1861.1M, avg=1861061765.00, stdev= 0.00 lat (nsec): min=1861.1M, max=1861.1M, avg=1861064918.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1854], 5.00th=[ 1854], 10.00th=[ 1854], 20.00th=[ 1854], | 30.00th=[ 1854], 40.00th=[ 1854], 50.00th=[ 1854], 60.00th=[ 1854], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] 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=2131KiB/s (2182kB/s)(8192KiB/3844msec); 0 zone resets clat (msec): min=767, max=1047, avg=907.13, stdev=197.97 lat (msec): min=767, max=1047, avg=907.61, stdev=198.07 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 1045], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7953, max= 7953, per=93.30%, avg=7953.00, 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=2.84%, ctx=44, 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=178586: Mon Jul 13 12:32:31 2026 write: IOPS=0, BW=3199KiB/s (3276kB/s)(12.0MiB/3841msec); 0 zone resets clat (msec): min=283, max=1790, avg=1231.21, stdev=825.32 lat (msec): min=283, max=1790, avg=1231.84, stdev=825.56 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 1620], 50.00th=[ 1620], 60.00th=[ 1620], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7846, max= 8175, per=93.98%, avg=8010.50, stdev=232.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.99%, ctx=61, 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=178588: Mon Jul 13 12:32:31 2026 write: IOPS=0, BW=3930KiB/s (4024kB/s)(12.0MiB/3127msec); 0 zone resets clat (msec): min=262, max=2528, avg=1022.28, stdev=1304.85 lat (msec): min=262, max=2529, avg=1023.00, stdev=1304.59 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7420, max= 8175, per=91.48%, avg=7797.50, stdev=533.87, 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=4.22%, ctx=68, 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=4262KiB/s (4365kB/s), 1066KiB/s-4623KiB/s (1091kB/s-4734kB/s), io=16.0MiB (16.8MB), run=2658-3844msec WRITE: bw=8524KiB/s (8729kB/s), 2131KiB/s-3930KiB/s (2182kB/s-4024kB/s), io=32.0MiB (33.6MB), run=3127-3844msec