== sanity test 398b: DIO and buffer IO race ============== 10:11:05 (1788185465) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.2442 s, 8.1 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=178692: Mon Aug 31 10:13:27 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5992KiB/121023msec) clat (usec): min=31, max=237949, avg=44266.02, stdev=29413.80 lat (usec): min=31, max=237950, avg=44275.54, stdev=29416.05 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 9503], 10.00th=[ 16909], 20.00th=[ 22676], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[179307], 99.90th=[223347], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 119, per=24.76%, avg=49.02, stdev=21.26, samples=238 iops : min= 1, max= 29, avg=11.61, stdev= 5.33, samples=238 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(6296KiB/121023msec); 0 zone resets clat (usec): min=862, max=738591, avg=34374.60, stdev=39087.71 lat (usec): min=863, max=738593, avg=34377.45, stdev=39087.07 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1762], 20.00th=[ 3949], | 30.00th=[ 7701], 40.00th=[ 15139], 50.00th=[ 23725], 60.00th=[ 33162], | 70.00th=[ 44303], 80.00th=[ 58983], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[156238], 99.50th=[175113], 99.90th=[212861], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 176, per=25.02%, avg=51.80, stdev=22.80, samples=237 iops : min= 1, max= 44, avg=12.32, stdev= 5.73, samples=237 lat (usec) : 50=0.36%, 100=1.56%, 250=0.10%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=5.83%, 4=4.52%, 10=7.52%, 20=10.81%, 50=40.04% lat (msec) : 100=24.28%, 250=4.75%, 750=0.03% cpu : usr=0.09%, sys=5.24%, ctx=6576, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178693: Mon Aug 31 10:13:27 2026 read: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5940KiB/120069msec) clat (usec): min=35, max=191316, avg=43624.14, stdev=27644.87 lat (usec): min=35, max=191317, avg=43626.25, stdev=27644.89 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10552], 10.00th=[ 16909], 20.00th=[ 21890], | 30.00th=[ 26346], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[131597], 99.50th=[149947], 99.90th=[179307], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 7, max= 96, per=24.98%, avg=49.46, stdev=18.72, samples=234 iops : min= 1, max= 24, avg=11.73, stdev= 4.73, samples=234 write: IOPS=13, BW=52.9KiB/s (54.1kB/s)(6348KiB/120069msec); 0 zone resets clat (usec): min=974, max=762852, avg=34458.00, stdev=40735.35 lat (usec): min=975, max=762853, avg=34465.94, stdev=40738.66 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1352], 10.00th=[ 1631], 20.00th=[ 3589], | 30.00th=[ 6849], 40.00th=[ 13435], 50.00th=[ 24249], 60.00th=[ 32375], | 70.00th=[ 43254], 80.00th=[ 59507], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[160433], 99.50th=[185598], 99.90th=[295699], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 7, max= 159, per=25.30%, avg=52.37, stdev=24.14, samples=236 iops : min= 1, max= 39, avg=12.46, stdev= 6.06, samples=236 lat (usec) : 50=0.20%, 100=1.53%, 250=0.07%, 500=0.07%, 1000=0.03% lat (msec) : 2=5.99%, 4=5.27%, 10=7.78%, 20=10.32%, 50=40.46% lat (msec) : 100=23.27%, 250=4.92%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=5.22%, ctx=6484, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178694: Mon Aug 31 10:13:27 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6028KiB/120299msec) clat (usec): min=33, max=736530, avg=43816.09, stdev=33419.67 lat (usec): min=33, max=736531, avg=43817.45, stdev=33419.68 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9896], 10.00th=[ 16909], 20.00th=[ 22414], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 43254], | 70.00th=[ 50594], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[164627], 99.90th=[240124], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 8, max= 147, per=25.14%, avg=49.77, stdev=20.48, samples=237 iops : min= 2, max= 36, avg=11.81, stdev= 5.14, samples=237 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(6260KiB/120299msec); 0 zone resets clat (usec): min=991, max=258984, avg=34321.87, stdev=36851.58 lat (usec): min=992, max=258986, avg=34326.42, stdev=36850.44 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1549], 20.00th=[ 3654], | 30.00th=[ 7242], 40.00th=[ 14484], 50.00th=[ 23462], 60.00th=[ 32375], | 70.00th=[ 43254], 80.00th=[ 59507], 90.00th=[ 83362], 95.00th=[106431], | 99.00th=[168821], 99.50th=[189793], 99.90th=[240124], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 7, max= 178, per=24.96%, avg=51.66, stdev=24.78, samples=237 iops : min= 1, max= 44, avg=12.28, stdev= 6.24, samples=237 lat (usec) : 50=0.23%, 100=1.89%, 250=0.07%, 1000=0.07% lat (msec) : 2=6.18%, 4=4.75%, 10=6.80%, 20=10.64%, 50=41.21% lat (msec) : 100=23.01%, 250=5.08%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=5.13%, ctx=6471, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178695: Mon Aug 31 10:13:27 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(6052KiB/119678msec) clat (usec): min=34, max=231423, avg=43710.08, stdev=28909.41 lat (usec): min=35, max=231424, avg=43711.78, stdev=28909.85 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 2933], 10.00th=[ 15926], 20.00th=[ 21627], | 30.00th=[ 27132], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44827], | 70.00th=[ 51643], 80.00th=[ 63177], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[147850], 99.50th=[168821], 99.90th=[227541], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 110, per=25.63%, avg=50.75, stdev=19.89, samples=233 iops : min= 1, max= 27, avg=12.06, stdev= 5.01, samples=233 write: IOPS=13, BW=52.1KiB/s (53.4kB/s)(6236KiB/119678msec); 0 zone resets clat (usec): min=951, max=863492, avg=33962.67, stdev=41505.69 lat (usec): min=952, max=863495, avg=33969.00, stdev=41504.28 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1369], 10.00th=[ 1582], 20.00th=[ 3228], | 30.00th=[ 6259], 40.00th=[ 12649], 50.00th=[ 23200], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 58459], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[147850], 99.50th=[183501], 99.90th=[312476], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 160, per=25.16%, avg=52.09, stdev=22.47, samples=234 iops : min= 1, max= 40, avg=12.38, stdev= 5.66, samples=234 lat (usec) : 50=0.36%, 100=1.69%, 250=0.20%, 500=0.10%, 1000=0.07% lat (msec) : 2=6.64%, 4=5.21%, 10=7.13%, 20=10.48%, 50=39.36% lat (msec) : 100=23.80%, 250=4.92%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.19%, ctx=6445, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=198KiB/s (203kB/s), 49.5KiB/s-50.6KiB/s (50.7kB/s-51.8kB/s), io=23.4MiB (24.6MB), run=119678-121023msec WRITE: bw=208KiB/s (213kB/s), 52.0KiB/s-52.9KiB/s (53.3kB/s-54.1kB/s), io=24.6MiB (25.7MB), run=119678-121023msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178696: Mon Aug 31 10:14:19 2026 read: IOPS=8, BW=34.8KiB/s (35.6kB/s)(5992KiB/172234msec) clat (msec): min=5, max=791, avg=44.99, stdev=42.24 lat (msec): min=5, max=791, avg=45.00, stdev=42.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 63], 90.00th=[ 95], 95.00th=[ 121], | 99.00th=[ 201], 99.50th=[ 230], 99.90th=[ 253], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 127, per=25.57%, avg=35.29, stdev=22.13, samples=330 iops : min= 1, max= 31, avg= 8.15, stdev= 5.57, samples=330 write: IOPS=9, BW=36.6KiB/s (37.4kB/s)(6296KiB/172234msec); 0 zone resets clat (msec): min=13, max=501, avg=66.28, stdev=43.71 lat (msec): min=13, max=501, avg=66.28, stdev=43.71 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=[ 74], 80.00th=[ 95], 90.00th=[ 123], 95.00th=[ 150], | 99.00th=[ 224], 99.50th=[ 243], 99.90th=[ 330], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 112, per=25.09%, avg=36.39, stdev=20.71, samples=336 iops : min= 1, max= 28, avg= 8.42, stdev= 5.23, samples=336 lat (msec) : 10=1.11%, 20=10.61%, 50=47.53%, 100=27.44%, 250=12.99% lat (msec) : 500=0.26%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.97%, ctx=4857, 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=178697: Mon Aug 31 10:14:19 2026 read: IOPS=8, BW=34.3KiB/s (35.1kB/s)(5940KiB/173222msec) clat (msec): min=6, max=772, avg=45.45, stdev=43.78 lat (msec): min=6, max=772, avg=45.45, stdev=43.78 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 99], 95.00th=[ 138], | 99.00th=[ 190], 99.50th=[ 211], 99.90th=[ 313], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 128, per=25.14%, avg=34.70, stdev=22.99, samples=332 iops : min= 1, max= 32, avg= 8.00, stdev= 5.79, samples=332 write: IOPS=9, BW=36.6KiB/s (37.5kB/s)(6348KiB/173222msec); 0 zone resets clat (msec): min=12, max=425, avg=66.24, stdev=44.63 lat (msec): min=12, max=425, avg=66.24, stdev=44.63 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 63], | 70.00th=[ 75], 80.00th=[ 93], 90.00th=[ 124], 95.00th=[ 153], | 99.00th=[ 222], 99.50th=[ 264], 99.90th=[ 376], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 111, per=25.07%, avg=36.35, stdev=20.42, samples=338 iops : min= 1, max= 27, avg= 8.42, stdev= 5.16, samples=338 lat (msec) : 10=1.01%, 20=12.37%, 50=45.51%, 100=27.34%, 250=13.35% lat (msec) : 500=0.39%, 1000=0.03% cpu : usr=0.06%, sys=1.99%, ctx=4906, 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=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=178698: Mon Aug 31 10:14:19 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(6028KiB/172272msec) clat (msec): min=6, max=257, avg=45.06, stdev=37.61 lat (msec): min=6, max=257, avg=45.06, stdev=37.61 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 64], 90.00th=[ 94], 95.00th=[ 118], | 99.00th=[ 197], 99.50th=[ 230], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 7, max= 135, per=25.62%, avg=35.36, stdev=22.37, samples=331 iops : min= 1, max= 33, avg= 8.17, stdev= 5.63, samples=331 write: IOPS=9, BW=36.3KiB/s (37.2kB/s)(6260KiB/172272msec); 0 zone resets clat (msec): min=10, max=836, avg=66.35, stdev=48.76 lat (msec): min=10, max=836, avg=66.36, stdev=48.76 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 126], 95.00th=[ 155], | 99.00th=[ 222], 99.50th=[ 255], 99.90th=[ 489], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 111, per=24.85%, avg=36.04, stdev=20.60, samples=337 iops : min= 1, max= 27, avg= 8.34, stdev= 5.20, samples=337 lat (msec) : 10=1.27%, 20=11.10%, 50=46.65%, 100=27.99%, 250=12.60% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.06%, sys=2.05%, ctx=4961, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178699: Mon Aug 31 10:14:19 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(6052KiB/173036msec) clat (msec): min=6, max=268, avg=44.35, stdev=38.87 lat (msec): min=6, max=268, avg=44.36, stdev=38.87 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 203], 99.50th=[ 234], 99.90th=[ 262], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 7, max= 128, per=25.77%, avg=35.56, stdev=22.28, samples=331 iops : min= 1, max= 32, avg= 8.22, stdev= 5.62, samples=331 write: IOPS=9, BW=36.0KiB/s (36.9kB/s)(6236KiB/173036msec); 0 zone resets clat (msec): min=12, max=829, avg=67.60, stdev=47.85 lat (msec): min=12, max=829, avg=67.61, stdev=47.85 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 99], 90.00th=[ 129], 95.00th=[ 150], | 99.00th=[ 222], 99.50th=[ 262], 99.90th=[ 342], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 119, per=24.66%, avg=35.76, stdev=20.16, samples=339 iops : min= 1, max= 29, avg= 8.27, stdev= 5.09, samples=339 lat (msec) : 10=1.50%, 20=12.01%, 50=45.54%, 100=26.73%, 250=13.80% lat (msec) : 500=0.39%, 1000=0.03% cpu : usr=0.06%, sys=1.93%, ctx=4911, 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=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=139KiB/s (142kB/s), 34.3KiB/s-34.0KiB/s (35.1kB/s-35.8kB/s), io=23.4MiB (24.6MB), run=172234-173222msec WRITE: bw=145KiB/s (149kB/s), 36.0KiB/s-36.6KiB/s (36.9kB/s-37.5kB/s), io=24.6MiB (25.7MB), run=172234-173222msec 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=178737: Mon Aug 31 10:15:04 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(5920KiB/33518msec) clat (usec): min=36, max=241421, avg=51397.04, stdev=36435.98 lat (usec): min=36, max=241422, avg=51398.30, stdev=36435.96 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 116], 20.00th=[ 24773], | 30.00th=[ 32375], 40.00th=[ 37487], 50.00th=[ 44827], 60.00th=[ 53216], | 70.00th=[ 62653], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[119014], | 99.00th=[189793], 99.50th=[204473], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 63, max= 381, per=24.50%, avg=172.94, stdev=63.40, samples=65 iops : min= 3, max= 23, avg=10.03, stdev= 4.00, samples=65 write: IOPS=11, BW=190KiB/s (195kB/s)(6368KiB/33518msec); 0 zone resets clat (usec): min=1655, max=172016, avg=35824.21, stdev=34010.70 lat (usec): min=1657, max=172018, avg=35845.24, stdev=34001.96 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2008], 10.00th=[ 2868], 20.00th=[ 5866], | 30.00th=[ 9765], 40.00th=[ 18482], 50.00th=[ 26346], 60.00th=[ 34866], | 70.00th=[ 47973], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[147850], 99.50th=[149947], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 62, max= 439, per=25.39%, avg=188.42, stdev=77.94, samples=65 iops : min= 3, max= 27, avg=11.03, stdev= 5.00, samples=65 lat (usec) : 50=0.52%, 100=4.04%, 250=0.39% lat (msec) : 2=2.47%, 4=5.08%, 10=8.98%, 20=7.55%, 50=35.03% lat (msec) : 100=28.78%, 250=7.16% cpu : usr=0.07%, sys=4.87%, ctx=1612, 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=178738: Mon Aug 31 10:15:04 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5744KiB/33750msec) clat (usec): min=40, max=264910, avg=48280.26, stdev=34724.71 lat (usec): min=41, max=264911, avg=48281.55, stdev=34724.77 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 64], 10.00th=[ 143], 20.00th=[ 22938], | 30.00th=[ 30540], 40.00th=[ 37487], 50.00th=[ 44303], 60.00th=[ 49546], | 70.00th=[ 57934], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[107480], | 99.00th=[154141], 99.50th=[242222], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 21, max= 318, per=24.29%, avg=171.48, stdev=70.50, samples=66 iops : min= 1, max= 19, avg= 9.95, stdev= 4.49, samples=66 write: IOPS=12, BW=194KiB/s (199kB/s)(6544KiB/33750msec); 0 zone resets clat (usec): min=1313, max=201965, avg=39091.95, stdev=38852.55 lat (usec): min=1315, max=201969, avg=39095.21, stdev=38852.79 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2114], 10.00th=[ 2999], 20.00th=[ 6587], | 30.00th=[ 9503], 40.00th=[ 18482], 50.00th=[ 27395], 60.00th=[ 38536], | 70.00th=[ 49021], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[116917], | 99.00th=[166724], 99.50th=[183501], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 30, max= 383, per=26.25%, avg=194.76, stdev=87.30, samples=66 iops : min= 1, max= 23, avg=11.41, stdev= 5.55, samples=66 lat (usec) : 50=0.13%, 100=4.30%, 250=0.26% lat (msec) : 2=2.34%, 4=4.30%, 10=10.16%, 20=8.72%, 50=35.42% lat (msec) : 100=26.56%, 250=7.68%, 500=0.13% cpu : usr=0.04%, sys=5.08%, ctx=1603, 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=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=178739: Mon Aug 31 10:15:04 2026 read: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33921msec) clat (usec): min=34, max=240858, avg=49680.51, stdev=34858.59 lat (usec): min=34, max=240859, avg=49681.82, stdev=34858.62 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 81], 20.00th=[ 25035], | 30.00th=[ 33424], 40.00th=[ 39060], 50.00th=[ 43779], 60.00th=[ 50070], | 70.00th=[ 60031], 80.00th=[ 72877], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[183501], 99.50th=[217056], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 31, max= 382, per=25.96%, avg=183.24, stdev=71.01, samples=66 iops : min= 1, max= 23, avg=10.68, stdev= 4.52, samples=66 write: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33921msec); 0 zone resets clat (usec): min=1661, max=282819, avg=38244.48, stdev=45410.52 lat (usec): min=1664, max=282820, avg=38256.29, stdev=45439.83 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1909], 10.00th=[ 2671], 20.00th=[ 5276], | 30.00th=[ 8160], 40.00th=[ 13173], 50.00th=[ 21365], 60.00th=[ 31327], | 70.00th=[ 42206], 80.00th=[ 60556], 90.00th=[104334], 95.00th=[131597], | 99.00th=[193987], 99.50th=[274727], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 30, max= 415, per=23.84%, avg=176.89, stdev=90.70, samples=65 iops : min= 1, max= 25, avg=10.29, stdev= 5.69, samples=65 lat (usec) : 50=0.52%, 100=4.82%, 250=0.13%, 500=0.13% lat (msec) : 2=4.17%, 4=2.73%, 10=10.42%, 20=8.33%, 50=35.42% lat (msec) : 100=24.35%, 250=8.72%, 500=0.26% cpu : usr=0.07%, sys=5.09%, ctx=1537, 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=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=178741: Mon Aug 31 10:15:04 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6032KiB/33003msec) clat (usec): min=31, max=267958, avg=46766.50, stdev=36321.46 lat (usec): min=32, max=267959, avg=46767.81, stdev=36321.39 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 19792], | 30.00th=[ 29754], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 57410], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[107480], | 99.00th=[170918], 99.50th=[193987], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 30, max= 416, per=25.69%, avg=181.36, stdev=85.38, samples=64 iops : min= 1, max= 26, avg=10.56, stdev= 5.42, samples=64 write: IOPS=11, BW=190KiB/s (194kB/s)(6256KiB/33003msec); 0 zone resets clat (usec): min=1446, max=259253, avg=38626.48, stdev=40493.86 lat (usec): min=1448, max=259255, avg=38633.46, stdev=40490.37 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2114], 10.00th=[ 3556], 20.00th=[ 5932], | 30.00th=[ 10552], 40.00th=[ 16909], 50.00th=[ 25035], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 63177], 90.00th=[ 89654], 95.00th=[117965], | 99.00th=[191890], 99.50th=[235930], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 407, per=25.24%, avg=187.31, stdev=73.32, samples=64 iops : min= 1, max= 25, avg=10.95, stdev= 4.66, samples=64 lat (usec) : 50=0.65%, 100=6.38%, 250=0.65%, 750=0.13% lat (msec) : 2=2.34%, 4=4.04%, 10=8.07%, 20=9.90%, 50=34.77% lat (msec) : 100=26.17%, 250=6.64%, 500=0.26% cpu : usr=0.07%, sys=5.03%, ctx=1587, 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=706KiB/s (723kB/s), 170KiB/s-184KiB/s (174kB/s-189kB/s), io=23.4MiB (24.5MB), run=33003-33921msec WRITE: bw=743KiB/s (761kB/s), 178KiB/s-194KiB/s (182kB/s-199kB/s), io=24.6MiB (25.8MB), run=33003-33921msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178740: Mon Aug 31 10:15:21 2026 read: IOPS=7, BW=115KiB/s (118kB/s)(5920KiB/51342msec) clat (msec): min=10, max=265, avg=52.71, stdev=39.75 lat (msec): min=10, max=265, avg=52.71, stdev=39.75 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 33], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 72], 90.00th=[ 109], 95.00th=[ 142], | 99.00th=[ 186], 99.50th=[ 228], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 319, per=24.93%, avg=116.16, stdev=67.53, samples=100 iops : min= 1, max= 19, avg= 6.41, stdev= 4.23, samples=100 write: IOPS=7, BW=124KiB/s (127kB/s)(6368KiB/51342msec); 0 zone resets clat (msec): min=18, max=291, avg=79.21, stdev=48.33 lat (msec): min=18, max=292, avg=79.22, stdev=48.36 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 31], 10.00th=[ 36], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 55], 50.00th=[ 63], 60.00th=[ 77], | 70.00th=[ 90], 80.00th=[ 110], 90.00th=[ 148], 95.00th=[ 178], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 286, per=25.48%, avg=124.87, stdev=62.13, samples=100 iops : min= 1, max= 17, avg= 6.95, stdev= 3.93, samples=100 lat (msec) : 20=5.47%, 50=41.02%, 100=35.16%, 250=17.58%, 500=0.78% cpu : usr=0.04%, sys=1.69%, ctx=1175, 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=178742: Mon Aug 31 10:15:21 2026 read: IOPS=6, BW=112KiB/s (115kB/s)(5744KiB/51309msec) clat (msec): min=7, max=248, avg=50.21, stdev=40.62 lat (msec): min=7, max=248, avg=50.21, stdev=40.62 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 70], 90.00th=[ 104], 95.00th=[ 133], | 99.00th=[ 205], 99.50th=[ 220], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 22, max= 351, per=26.14%, avg=121.84, stdev=72.88, samples=91 iops : min= 1, max= 21, avg= 6.77, stdev= 4.59, samples=91 write: IOPS=7, BW=128KiB/s (131kB/s)(6544KiB/51309msec); 0 zone resets clat (msec): min=19, max=339, avg=81.08, stdev=52.05 lat (msec): min=19, max=339, avg=81.08, stdev=52.05 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 31], 10.00th=[ 36], 20.00th=[ 44], | 30.00th=[ 50], 40.00th=[ 56], 50.00th=[ 64], 60.00th=[ 74], | 70.00th=[ 90], 80.00th=[ 110], 90.00th=[ 148], 95.00th=[ 190], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 287, per=25.84%, avg=126.62, stdev=62.69, samples=99 iops : min= 1, max= 17, avg= 7.06, stdev= 3.94, samples=99 lat (msec) : 10=0.26%, 20=7.03%, 50=40.89%, 100=33.72%, 250=17.32% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.79%, ctx=1185, 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=178743: Mon Aug 31 10:15:21 2026 read: IOPS=7, BW=123KiB/s (126kB/s)(6256KiB/50923msec) clat (msec): min=10, max=211, avg=51.50, stdev=40.13 lat (msec): min=10, max=211, avg=51.50, stdev=40.13 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 39], 60.00th=[ 45], | 70.00th=[ 55], 80.00th=[ 72], 90.00th=[ 108], 95.00th=[ 155], | 99.00th=[ 194], 99.50th=[ 207], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 22, max= 413, per=26.67%, avg=124.28, stdev=82.56, samples=99 iops : min= 1, max= 25, avg= 6.92, stdev= 5.20, samples=99 write: IOPS=7, BW=118KiB/s (121kB/s)(6032KiB/50923msec); 0 zone resets clat (msec): min=23, max=336, avg=80.37, stdev=50.78 lat (msec): min=23, max=336, avg=80.37, stdev=50.78 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 32], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 48], 40.00th=[ 55], 50.00th=[ 65], 60.00th=[ 75], | 70.00th=[ 90], 80.00th=[ 114], 90.00th=[ 148], 95.00th=[ 182], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 256, per=24.25%, avg=118.81, stdev=59.33, samples=99 iops : min= 1, max= 16, avg= 6.57, stdev= 3.73, samples=99 lat (msec) : 20=6.77%, 50=43.36%, 100=30.99%, 250=18.10%, 500=0.78% cpu : usr=0.06%, sys=1.80%, ctx=1255, 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=178744: Mon Aug 31 10:15:21 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(6032KiB/51348msec) clat (msec): min=8, max=274, avg=55.78, stdev=46.05 lat (msec): min=8, max=274, avg=55.80, stdev=46.05 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 59], 80.00th=[ 78], 90.00th=[ 121], 95.00th=[ 159], | 99.00th=[ 243], 99.50th=[ 264], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 30, max= 319, per=25.87%, avg=120.56, stdev=66.40, samples=98 iops : min= 1, max= 19, avg= 6.68, stdev= 4.20, samples=98 write: IOPS=7, BW=122KiB/s (125kB/s)(6256KiB/51348msec); 0 zone resets clat (msec): min=21, max=326, avg=76.56, stdev=45.44 lat (msec): min=21, max=326, avg=76.56, stdev=45.44 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 30], 10.00th=[ 34], 20.00th=[ 40], | 30.00th=[ 50], 40.00th=[ 57], 50.00th=[ 65], 60.00th=[ 74], | 70.00th=[ 87], 80.00th=[ 102], 90.00th=[ 138], 95.00th=[ 174], | 99.00th=[ 236], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 287, per=25.36%, avg=124.26, stdev=69.02, samples=99 iops : min= 1, max= 17, avg= 6.92, stdev= 4.35, samples=99 lat (msec) : 10=0.39%, 20=6.64%, 50=39.19%, 100=36.33%, 250=16.80% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=1.69%, ctx=1134, 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=466KiB/s (478kB/s), 112KiB/s-123KiB/s (115kB/s-126kB/s), io=23.4MiB (24.5MB), run=50923-51348msec WRITE: bw=491KiB/s (503kB/s), 118KiB/s-128KiB/s (121kB/s-131kB/s), io=24.6MiB (25.8MB), run=50923-51348msec 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=178758: Mon Aug 31 10:15:37 2026 read: IOPS=1, BW=1637KiB/s (1676kB/s)(7168KiB/4380msec) clat (msec): min=133, max=345, avg=211.56, stdev=73.30 lat (msec): min=133, max=345, avg=211.56, stdev=73.30 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 1370, max= 4071, per=65.76%, avg=2859.25, stdev=1363.75, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1169KiB/s (1197kB/s)(5120KiB/4380msec); 0 zone resets clat (msec): min=240, max=1085, avg=518.34, stdev=351.52 lat (msec): min=240, max=1085, avg=518.67, stdev=351.58 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1965, max= 2043, per=33.10%, avg=2014.80, stdev=33.33, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=66.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.55%, ctx=222, 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=178759: Mon Aug 31 10:15:37 2026 read: IOPS=0, BW=490KiB/s (501kB/s)(2048KiB/4182msec) clat (msec): min=232, max=302, avg=267.52, stdev=50.08 lat (msec): min=232, max=302, avg=267.53, stdev=50.08 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1398, max= 2035, per=39.48%, avg=1716.50, stdev=450.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2449KiB/s (2507kB/s)(10.0MiB/4182msec); 0 zone resets clat (msec): min=48, max=832, avg=351.16, stdev=253.24 lat (msec): min=48, max=832, avg=351.26, stdev=253.24 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 49], 10.00th=[ 49], 20.00th=[ 161], | 30.00th=[ 167], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 305], | 70.00th=[ 359], 80.00th=[ 523], 90.00th=[ 693], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2015, max= 4071, per=57.66%, avg=3509.75, stdev=997.58, samples=4 iops : min= 1, max= 3, avg= 2.50, stdev= 1.00, samples=4 lat (msec) : 50=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.05%, sys=13.04%, ctx=119, 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=178762: Mon Aug 31 10:15:37 2026 read: IOPS=1, BW=1672KiB/s (1712kB/s)(6144KiB/3675msec) clat (msec): min=82, max=351, avg=236.24, stdev=118.27 lat (msec): min=82, max=351, avg=236.24, stdev=118.27 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 243], 50.00th=[ 243], 60.00th=[ 300], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2039, max= 4087, per=77.45%, avg=3367.33, stdev=1151.71, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1672KiB/s (1712kB/s)(6144KiB/3675msec); 0 zone resets clat (msec): min=200, max=648, avg=361.89, stdev=188.00 lat (msec): min=200, max=648, avg=361.99, stdev=188.01 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 257], 50.00th=[ 257], 60.00th=[ 292], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1771, max= 4079, per=39.31%, avg=2392.60, stdev=949.79, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=11.65%, ctx=178, 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=178764: Mon Aug 31 10:15:37 2026 read: IOPS=1, BW=1087KiB/s (1113kB/s)(5120KiB/4710msec) clat (usec): min=491, max=668936, avg=244472.46, stdev=274643.20 lat (usec): min=492, max=668937, avg=244473.70, stdev=274642.88 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 947], 40.00th=[ 947], 50.00th=[256902], 60.00th=[256902], | 70.00th=[295699], 80.00th=[295699], 90.00th=[666895], 95.00th=[666895], | 99.00th=[666895], 99.50th=[666895], 99.90th=[666895], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 2039, max= 5873, per=90.98%, avg=3956.00, stdev=2711.05, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1522KiB/s (1558kB/s)(7168KiB/4710msec); 0 zone resets clat (msec): min=199, max=963, avg=476.30, stdev=355.28 lat (msec): min=199, max=963, avg=476.38, stdev=355.29 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 203], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 232], 60.00th=[ 567], | 70.00th=[ 567], 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= 1996, max= 4087, per=49.90%, avg=3037.25, stdev=1184.66, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 250=33.33%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=9.45%, ctx=200, 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=4348KiB/s (4453kB/s), 490KiB/s-1672KiB/s (501kB/s-1712kB/s), io=20.0MiB (20.0MB), run=3675-4710msec WRITE: bw=6087KiB/s (6234kB/s), 1169KiB/s-2449KiB/s (1197kB/s-2507kB/s), io=28.0MiB (29.4MB), run=3675-4710msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178760: Mon Aug 31 10:15:38 2026 read: IOPS=1, BW=1834KiB/s (1878kB/s)(7168KiB/3909msec) clat (msec): min=121, max=564, avg=240.32, stdev=153.88 lat (msec): min=121, max=564, avg=240.32, stdev=153.88 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 188], 60.00th=[ 205], | 70.00th=[ 205], 80.00th=[ 300], 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= 1969, max= 4290, per=72.92%, avg=2582.25, stdev=1138.93, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1310KiB/s (1341kB/s)(5120KiB/3909msec); 0 zone resets clat (msec): min=178, max=551, avg=433.50, stdev=149.30 lat (msec): min=178, max=554, avg=434.28, stdev=149.85 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1969, max= 3938, per=50.02%, avg=2479.50, stdev=972.52, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=3.63%, ctx=71, 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=178761: Mon Aug 31 10:15:38 2026 read: IOPS=0, BW=364KiB/s (372kB/s)(2048KiB/5630msec) clat (msec): min=77, max=516, avg=296.83, stdev=310.65 lat (msec): min=77, max=516, avg=296.83, stdev=310.65 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 78], 40.00th=[ 78], 50.00th=[ 78], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1969, max= 2043, per=56.65%, avg=2006.00, stdev=52.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1819KiB/s (1862kB/s)(10.0MiB/5630msec); 0 zone resets clat (msec): min=127, max=794, avg=466.48, stdev=240.59 lat (msec): min=127, max=794, avg=466.59, stdev=240.57 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 136], | 30.00th=[ 215], 40.00th=[ 397], 50.00th=[ 493], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 676], 90.00th=[ 709], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1969, max= 4087, per=52.47%, avg=2601.14, stdev=1007.16, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 100=8.33%, 250=25.00%, 500=16.67%, 750=41.67%, 1000=8.33% cpu : usr=0.00%, sys=4.17%, ctx=96, 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=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=178763: Mon Aug 31 10:15:38 2026 read: IOPS=1, BW=1096KiB/s (1122kB/s)(6144KiB/5608msec) clat (msec): min=78, max=748, avg=333.96, stdev=319.16 lat (msec): min=78, max=748, avg=333.96, stdev=319.16 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 167], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1969, max= 2031, per=56.31%, avg=1994.00, stdev=27.04, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1096KiB/s (1122kB/s)(6144KiB/5608msec); 0 zone resets clat (msec): min=216, max=936, avg=557.28, stdev=235.90 lat (msec): min=216, max=937, avg=557.49, stdev=235.92 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 592], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1969, max= 2031, per=40.09%, avg=1987.25, stdev=29.62, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=8.33%, 750=41.67%, 1000=8.33% cpu : usr=0.00%, sys=4.05%, ctx=96, 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=178765: Mon Aug 31 10:15:38 2026 read: IOPS=0, BW=885KiB/s (907kB/s)(5120KiB/5783msec) clat (msec): min=85, max=1235, avg=526.28, stdev=514.68 lat (msec): min=85, max=1235, avg=526.28, stdev=514.68 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1996, max= 4063, per=76.27%, avg=2700.67, stdev=1180.05, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1239KiB/s (1269kB/s)(7168KiB/5783msec); 0 zone resets clat (msec): min=171, max=938, avg=440.96, stdev=304.44 lat (msec): min=171, max=938, avg=441.32, stdev=304.24 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 205], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 284], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 751], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1969, max= 4079, per=60.76%, avg=3012.00, stdev=1204.51, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.46%, ctx=89, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3541KiB/s (3626kB/s), 364KiB/s-1834KiB/s (372kB/s-1878kB/s), io=20.0MiB (20.0MB), run=3909-5783msec WRITE: bw=4958KiB/s (5077kB/s), 1096KiB/s-1819KiB/s (1122kB/s-1862kB/s), io=28.0MiB (29.4MB), run=3909-5783msec 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=178772: Mon Aug 31 10:15:53 2026 read: IOPS=0, BW=2702KiB/s (2767kB/s)(12.0MiB/4547msec) clat (msec): min=763, max=2741, avg=1447.30, stdev=1121.05 lat (msec): min=763, max=2741, avg=1447.30, stdev=1121.05 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.04%, sys=10.27%, ctx=625, 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=178774: Mon Aug 31 10:15:53 2026 read: IOPS=0, BW=786KiB/s (805kB/s)(4096KiB/5213msec) clat (nsec): min=2769.5M, max=2769.5M, avg=2769548150.00, stdev= 0.00 lat (nsec): min=2769.6M, max=2769.6M, avg=2769551010.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2769], 5.00th=[ 2769], 10.00th=[ 2769], 20.00th=[ 2769], | 30.00th=[ 2769], 40.00th=[ 2769], 50.00th=[ 2769], 60.00th=[ 2769], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1571KiB/s (1609kB/s)(8192KiB/5213msec); 0 zone resets clat (msec): min=1092, max=1281, avg=1187.26, stdev=133.90 lat (msec): min=1092, max=1283, avg=1188.45, stdev=135.05 clat percentiles (msec): | 1.00th=[ 1099], 5.00th=[ 1099], 10.00th=[ 1099], 20.00th=[ 1099], | 30.00th=[ 1099], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.94%, 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=178775: Mon Aug 31 10:15:53 2026 write: IOPS=0, BW=2354KiB/s (2411kB/s)(12.0MiB/5219msec); 0 zone resets clat (msec): min=636, max=3272, avg=1719.03, stdev=1379.88 lat (msec): min=636, max=3273, avg=1719.38, stdev=1379.92 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 8031, max= 8175, per=100.00%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.57%, ctx=58, 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=178778: Mon Aug 31 10:15:53 2026 write: IOPS=0, BW=2681KiB/s (2745kB/s)(12.0MiB/4584msec); 0 zone resets clat (msec): min=442, max=3214, avg=1498.47, stdev=1499.25 lat (msec): min=443, max=3219, avg=1500.30, stdev=1501.93 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 3205], 80.00th=[ 3205], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 8110, max= 8143, per=100.00%, avg=8126.50, stdev=23.33, 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=2.42%, ctx=54, 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=3143KiB/s (3218kB/s), 786KiB/s-2702KiB/s (805kB/s-2767kB/s), io=16.0MiB (16.8MB), run=4547-5213msec WRITE: bw=6279KiB/s (6429kB/s), 1571KiB/s-2681KiB/s (1609kB/s-2745kB/s), io=32.0MiB (33.6MB), run=4584-5219msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178773: Mon Aug 31 10:15:54 2026 read: IOPS=0, BW=2235KiB/s (2289kB/s)(12.0MiB/5498msec) clat (msec): min=750, max=3509, avg=1804.47, stdev=1490.14 lat (msec): min=750, max=3509, avg=1804.47, stdev=1490.14 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 3507], 80.00th=[ 3507], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.67%, ctx=48, 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=178776: Mon Aug 31 10:15:54 2026 read: IOPS=0, BW=732KiB/s (750kB/s)(4096KiB/5593msec) clat (nsec): min=2950.6M, max=2950.6M, avg=2950569883.00, stdev= 0.00 lat (nsec): min=2950.6M, max=2950.6M, avg=2950572071.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2937], 5.00th=[ 2937], 10.00th=[ 2937], 20.00th=[ 2937], | 30.00th=[ 2937], 40.00th=[ 2937], 50.00th=[ 2937], 60.00th=[ 2937], | 70.00th=[ 2937], 80.00th=[ 2937], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 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=1465KiB/s (1500kB/s)(8192KiB/5593msec); 0 zone resets clat (msec): min=356, max=2052, avg=1204.81, stdev=1199.23 lat (msec): min=357, max=2053, avg=1205.41, stdev=1198.93 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 2056], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] 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 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.04%, sys=2.41%, ctx=56, 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=178777: Mon Aug 31 10:15:54 2026 write: IOPS=0, BW=2555KiB/s (2616kB/s)(12.0MiB/4810msec); 0 zone resets clat (msec): min=809, max=2533, avg=1544.30, stdev=889.72 lat (msec): min=810, max=2536, avg=1545.74, stdev=891.10 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 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= 7984, max= 8110, per=100.00%, avg=8047.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.93%, ctx=60, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178779: Mon Aug 31 10:15:54 2026 write: IOPS=0, BW=2364KiB/s (2421kB/s)(12.0MiB/5197msec); 0 zone resets clat (msec): min=336, max=2531, avg=1709.59, stdev=1196.79 lat (msec): min=336, max=2538, avg=1712.59, stdev=1199.48 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 2265], 50.00th=[ 2265], 60.00th=[ 2265], | 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= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, 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=2.39%, ctx=52, 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 Run status group 0 (all jobs): READ: bw=2929KiB/s (3000kB/s), 732KiB/s-2235KiB/s (750kB/s-2289kB/s), io=16.0MiB (16.8MB), run=5498-5593msec WRITE: bw=5859KiB/s (5999kB/s), 1465KiB/s-2555KiB/s (1500kB/s-2616kB/s), io=32.0MiB (33.6MB), run=4810-5593msec