== sanity test 398b: DIO and buffer IO race ============== 21:17:39 (1781227059) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.27208 s, 15.4 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=153633: Thu Jun 11 21:18:47 2026 read: IOPS=26, BW=105KiB/s (107kB/s)(5992KiB/57140msec) clat (usec): min=40, max=713887, avg=19812.63, stdev=22292.16 lat (usec): min=41, max=713888, avg=19816.86, stdev=22291.50 clat percentiles (usec): | 1.00th=[ 73], 5.00th=[ 223], 10.00th=[ 8225], 20.00th=[ 10552], | 30.00th=[ 12387], 40.00th=[ 14353], 50.00th=[ 16712], 60.00th=[ 19530], | 70.00th=[ 22414], 80.00th=[ 26608], 90.00th=[ 33817], 95.00th=[ 41157], | 99.00th=[ 72877], 99.50th=[ 85459], 99.90th=[158335], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 176, per=25.01%, avg=104.06, stdev=29.48, samples=113 iops : min= 1, max= 44, avg=25.55, stdev= 7.38, samples=113 write: IOPS=27, BW=110KiB/s (113kB/s)(6296KiB/57140msec); 0 zone resets clat (usec): min=932, max=124936, avg=17286.25, stdev=14586.28 lat (usec): min=932, max=124937, avg=17288.84, stdev=14585.85 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 2343], 10.00th=[ 2966], 20.00th=[ 4359], | 30.00th=[ 6521], 40.00th=[ 10421], 50.00th=[ 14222], 60.00th=[ 17433], | 70.00th=[ 22152], 80.00th=[ 28181], 90.00th=[ 36963], 95.00th=[ 43254], | 99.00th=[ 61080], 99.50th=[ 79168], 99.90th=[112722], 99.95th=[125305], | 99.99th=[125305] bw ( KiB/s): min= 32, max= 176, per=25.24%, avg=109.80, stdev=28.43, samples=112 iops : min= 8, max= 44, avg=27.00, stdev= 7.17, samples=112 lat (usec) : 50=0.03%, 100=0.98%, 250=1.43%, 500=0.23%, 1000=0.10% lat (msec) : 2=1.69%, 4=7.16%, 10=16.70%, 20=35.35%, 50=33.37% lat (msec) : 100=2.73%, 250=0.20%, 750=0.03% cpu : usr=0.12%, sys=22.76%, ctx=8487, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153635: Thu Jun 11 21:18:47 2026 read: IOPS=25, BW=103KiB/s (105kB/s)(5940KiB/57685msec) clat (usec): min=40, max=148569, avg=19611.21, stdev=12620.61 lat (usec): min=41, max=148570, avg=19612.29, stdev=12620.54 clat percentiles (usec): | 1.00th=[ 82], 5.00th=[ 1172], 10.00th=[ 8717], 20.00th=[ 10683], | 30.00th=[ 12911], 40.00th=[ 14877], 50.00th=[ 17171], 60.00th=[ 19792], | 70.00th=[ 22938], 80.00th=[ 27132], 90.00th=[ 34341], 95.00th=[ 40633], | 99.00th=[ 63701], 99.50th=[ 81265], 99.90th=[137364], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 7, max= 160, per=24.52%, avg=102.00, stdev=27.98, samples=114 iops : min= 1, max= 40, avg=25.04, stdev= 6.99, samples=114 write: IOPS=27, BW=110KiB/s (113kB/s)(6348KiB/57685msec); 0 zone resets clat (usec): min=935, max=704380, avg=17831.95, stdev=22366.72 lat (usec): min=936, max=704382, avg=17835.55, stdev=22367.37 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 2278], 10.00th=[ 2900], 20.00th=[ 4293], | 30.00th=[ 6718], 40.00th=[ 11469], 50.00th=[ 14353], 60.00th=[ 18220], | 70.00th=[ 21890], 80.00th=[ 27657], 90.00th=[ 35914], 95.00th=[ 43779], | 99.00th=[ 66847], 99.50th=[ 77071], 99.90th=[115868], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 39, max= 200, per=25.05%, avg=108.98, stdev=30.54, samples=113 iops : min= 9, max= 50, avg=26.79, stdev= 7.66, samples=113 lat (usec) : 50=0.07%, 100=1.01%, 250=1.17%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=1.99%, 4=7.58%, 10=14.45%, 20=36.17%, 50=34.83% lat (msec) : 100=2.38%, 250=0.13%, 750=0.03% cpu : usr=0.15%, sys=22.83%, ctx=8587, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153637: Thu Jun 11 21:18:47 2026 read: IOPS=26, BW=105KiB/s (107kB/s)(6028KiB/57664msec) clat (usec): min=31, max=710591, avg=19760.63, stdev=21952.04 lat (usec): min=31, max=710592, avg=19761.69, stdev=21952.07 clat percentiles (usec): | 1.00th=[ 75], 5.00th=[ 221], 10.00th=[ 7963], 20.00th=[ 10552], | 30.00th=[ 12649], 40.00th=[ 14877], 50.00th=[ 17171], 60.00th=[ 20055], | 70.00th=[ 22676], 80.00th=[ 26870], 90.00th=[ 32637], 95.00th=[ 39060], | 99.00th=[ 64750], 99.50th=[ 81265], 99.90th=[166724], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 5, max= 199, per=25.04%, avg=104.15, stdev=27.64, samples=114 iops : min= 1, max= 49, avg=25.55, stdev= 6.92, samples=114 write: IOPS=27, BW=109KiB/s (111kB/s)(6260KiB/57664msec); 0 zone resets clat (usec): min=801, max=106214, avg=17673.37, stdev=14822.99 lat (usec): min=803, max=106216, avg=17674.80, stdev=14823.08 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2245], 10.00th=[ 3064], 20.00th=[ 4359], | 30.00th=[ 6783], 40.00th=[ 10552], 50.00th=[ 14091], 60.00th=[ 18220], | 70.00th=[ 22676], 80.00th=[ 28443], 90.00th=[ 36963], 95.00th=[ 44827], | 99.00th=[ 67634], 99.50th=[ 80217], 99.90th=[101188], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 16, max= 175, per=24.82%, avg=107.96, stdev=29.88, samples=114 iops : min= 4, max= 43, avg=26.51, stdev= 7.49, samples=114 lat (usec) : 50=0.16%, 100=0.88%, 250=1.53%, 500=0.23%, 1000=0.10% lat (msec) : 2=1.95%, 4=7.10%, 10=16.11%, 20=34.11%, 50=35.09% lat (msec) : 100=2.51%, 250=0.20%, 750=0.03% cpu : usr=0.14%, sys=22.46%, ctx=8590, 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=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=153639: Thu Jun 11 21:18:47 2026 read: IOPS=26, BW=105KiB/s (108kB/s)(6052KiB/57371msec) clat (usec): min=36, max=109341, avg=19373.93, stdev=11988.03 lat (usec): min=36, max=109342, avg=19375.04, stdev=11988.17 clat percentiles (usec): | 1.00th=[ 73], 5.00th=[ 204], 10.00th=[ 8455], 20.00th=[ 10814], | 30.00th=[ 12780], 40.00th=[ 14746], 50.00th=[ 16909], 60.00th=[ 19530], | 70.00th=[ 23200], 80.00th=[ 26870], 90.00th=[ 34341], 95.00th=[ 42206], | 99.00th=[ 59507], 99.50th=[ 66847], 99.90th=[ 87557], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 47, max= 175, per=25.48%, avg=106.01, stdev=25.46, samples=112 iops : min= 11, max= 43, avg=26.02, stdev= 6.37, samples=112 write: IOPS=27, BW=109KiB/s (111kB/s)(6236KiB/57371msec); 0 zone resets clat (usec): min=949, max=702130, avg=17833.96, stdev=22779.83 lat (usec): min=951, max=702133, avg=17838.30, stdev=22778.52 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2376], 10.00th=[ 3032], 20.00th=[ 4490], | 30.00th=[ 6980], 40.00th=[ 10552], 50.00th=[ 13960], 60.00th=[ 17433], | 70.00th=[ 22414], 80.00th=[ 28181], 90.00th=[ 36439], 95.00th=[ 43779], | 99.00th=[ 65274], 99.50th=[ 78119], 99.90th=[175113], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 48, max= 175, per=25.17%, avg=109.48, stdev=29.23, samples=112 iops : min= 12, max= 43, avg=26.89, stdev= 7.35, samples=112 lat (usec) : 50=0.16%, 100=0.88%, 250=1.69%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=1.69%, 4=7.26%, 10=15.66%, 20=36.00%, 50=33.72% lat (msec) : 100=2.70%, 250=0.07%, 750=0.03% cpu : usr=0.14%, sys=22.56%, ctx=8633, 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=416KiB/s (426kB/s), 103KiB/s-105KiB/s (105kB/s-108kB/s), io=23.4MiB (24.6MB), run=57140-57685msec WRITE: bw=436KiB/s (446kB/s), 109KiB/s-110KiB/s (111kB/s-113kB/s), io=24.6MiB (25.7MB), run=57140-57685msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153632: Thu Jun 11 21:19:24 2026 read: IOPS=15, BW=63.6KiB/s (65.1kB/s)(5992KiB/94267msec) clat (msec): min=3, max=713, avg=17.29, stdev=23.37 lat (msec): min=3, max=713, avg=17.29, stdev=23.37 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 35], 95.00th=[ 46], | 99.00th=[ 83], 99.50th=[ 89], 99.90th=[ 148], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 176, per=24.96%, avg=63.41, stdev=35.54, samples=186 iops : min= 1, max= 44, avg=15.51, stdev= 9.01, samples=186 write: IOPS=16, BW=66.8KiB/s (68.4kB/s)(6296KiB/94267msec); 0 zone resets clat (msec): min=14, max=197, avg=43.28, stdev=21.11 lat (msec): min=15, max=197, avg=43.28, stdev=21.11 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 27], | 30.00th=[ 30], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 42], | 70.00th=[ 49], 80.00th=[ 59], 90.00th=[ 72], 95.00th=[ 87], | 99.00th=[ 115], 99.50th=[ 130], 99.90th=[ 163], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 8, max= 128, per=25.05%, avg=66.63, stdev=29.33, samples=186 iops : min= 2, max= 32, avg=16.31, stdev= 7.45, samples=186 lat (msec) : 4=0.13%, 10=18.10%, 20=19.60%, 50=45.67%, 100=15.36% lat (msec) : 250=1.11%, 750=0.03% cpu : usr=0.10%, sys=7.71%, ctx=6251, 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=153634: Thu Jun 11 21:19:24 2026 read: IOPS=15, BW=62.9KiB/s (64.4kB/s)(5940KiB/94386msec) clat (msec): min=3, max=679, avg=17.42, stdev=23.20 lat (msec): min=3, max=679, avg=17.42, stdev=23.20 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 34], 95.00th=[ 48], | 99.00th=[ 87], 99.50th=[ 103], 99.90th=[ 163], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8, max= 168, per=24.92%, avg=63.28, stdev=36.48, samples=186 iops : min= 2, max= 42, avg=15.48, stdev= 9.24, samples=186 write: IOPS=16, BW=67.3KiB/s (68.9kB/s)(6348KiB/94386msec); 0 zone resets clat (msec): min=15, max=183, avg=43.02, stdev=21.55 lat (msec): min=15, max=183, avg=43.03, stdev=21.55 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 27], | 30.00th=[ 30], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 58], 90.00th=[ 71], 95.00th=[ 85], | 99.00th=[ 123], 99.50th=[ 148], 99.90th=[ 167], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 8, max= 128, per=25.28%, avg=67.26, stdev=29.74, samples=187 iops : min= 2, max= 32, avg=16.47, stdev= 7.56, samples=187 lat (msec) : 4=0.20%, 10=18.68%, 20=18.78%, 50=46.35%, 100=14.45% lat (msec) : 250=1.50%, 750=0.03% cpu : usr=0.10%, sys=7.71%, ctx=6122, 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=153636: Thu Jun 11 21:19:24 2026 read: IOPS=16, BW=64.4KiB/s (65.9kB/s)(6028KiB/93660msec) clat (msec): min=3, max=142, avg=16.92, stdev=14.83 lat (msec): min=3, max=142, avg=16.92, stdev=14.83 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 45], | 99.00th=[ 81], 99.50th=[ 91], 99.90th=[ 138], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 8, max= 160, per=25.51%, avg=64.79, stdev=34.14, samples=184 iops : min= 2, max= 40, avg=15.85, stdev= 8.61, samples=184 write: IOPS=16, BW=66.8KiB/s (68.4kB/s)(6260KiB/93660msec); 0 zone resets clat (msec): min=16, max=721, avg=43.40, stdev=26.91 lat (msec): min=16, max=721, avg=43.40, stdev=26.91 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 31], 40.00th=[ 34], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 48], 80.00th=[ 56], 90.00th=[ 70], 95.00th=[ 85], | 99.00th=[ 117], 99.50th=[ 140], 99.90th=[ 194], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 23, max= 136, per=25.12%, avg=66.82, stdev=29.17, samples=185 iops : min= 5, max= 34, avg=16.36, stdev= 7.43, samples=185 lat (msec) : 4=0.07%, 10=17.64%, 20=20.41%, 50=46.39%, 100=14.19% lat (msec) : 250=1.27%, 750=0.03% cpu : usr=0.10%, sys=7.80%, ctx=6243, 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=153638: Thu Jun 11 21:19:24 2026 read: IOPS=16, BW=64.5KiB/s (66.1kB/s)(6052KiB/93777msec) clat (msec): min=3, max=151, avg=17.20, stdev=15.20 lat (msec): min=3, max=151, avg=17.20, stdev=15.20 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 35], 95.00th=[ 46], | 99.00th=[ 80], 99.50th=[ 103], 99.90th=[ 123], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 7, max= 176, per=25.53%, avg=64.84, stdev=33.89, samples=184 iops : min= 1, max= 44, avg=15.86, stdev= 8.58, samples=184 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(6236KiB/93777msec); 0 zone resets clat (msec): min=15, max=699, avg=43.31, stdev=26.42 lat (msec): min=15, max=699, avg=43.31, stdev=26.42 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 27], | 30.00th=[ 30], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 42], | 70.00th=[ 48], 80.00th=[ 58], 90.00th=[ 72], 95.00th=[ 84], | 99.00th=[ 120], 99.50th=[ 130], 99.90th=[ 159], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 15, max= 128, per=24.99%, avg=66.47, stdev=28.55, samples=185 iops : min= 3, max= 32, avg=16.27, stdev= 7.28, samples=185 lat (msec) : 4=0.13%, 10=17.97%, 20=19.53%, 50=46.81%, 100=14.32% lat (msec) : 250=1.20%, 750=0.03% cpu : usr=0.10%, sys=7.74%, ctx=6195, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=254KiB/s (261kB/s), 62.9KiB/s-64.5KiB/s (64.4kB/s-66.1kB/s), io=23.4MiB (24.6MB), run=93660-94386msec WRITE: bw=266KiB/s (273kB/s), 66.5KiB/s-67.3KiB/s (68.1kB/s-68.9kB/s), io=24.6MiB (25.7MB), run=93660-94386msec 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=153669: Thu Jun 11 21:19:44 2026 read: IOPS=25, BW=413KiB/s (423kB/s)(5920KiB/14328msec) clat (usec): min=25, max=75888, avg=18863.73, stdev=12123.52 lat (usec): min=25, max=75889, avg=18864.80, stdev=12123.64 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 114], 10.00th=[ 176], 20.00th=[11207], | 30.00th=[13435], 40.00th=[15139], 50.00th=[17433], 60.00th=[19530], | 70.00th=[23462], 80.00th=[27919], 90.00th=[32900], 95.00th=[38011], | 99.00th=[62129], 99.50th=[68682], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 127, max= 699, per=25.31%, avg=410.29, stdev=130.22, samples=28 iops : min= 7, max= 43, avg=25.04, stdev= 8.23, samples=28 write: IOPS=27, BW=444KiB/s (455kB/s)(6368KiB/14328msec); 0 zone resets clat (usec): min=1436, max=165496, avg=18357.83, stdev=15704.04 lat (usec): min=1438, max=165498, avg=18359.97, stdev=15703.90 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 36], 95.00th=[ 44], | 99.00th=[ 65], 99.50th=[ 99], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 192, max= 604, per=25.97%, avg=442.96, stdev=101.28, samples=28 iops : min= 12, max= 37, avg=27.11, stdev= 6.40, samples=28 lat (usec) : 50=0.39%, 100=1.56%, 250=3.39%, 500=0.39%, 750=0.26% lat (msec) : 2=0.52%, 4=3.78%, 10=16.41%, 20=35.81%, 50=34.64% lat (msec) : 100=2.73%, 250=0.13% cpu : usr=0.11%, sys=26.70%, ctx=2374, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153670: Thu Jun 11 21:19:44 2026 read: IOPS=24, BW=389KiB/s (399kB/s)(5744KiB/14748msec) clat (usec): min=57, max=111215, avg=20695.45, stdev=13759.15 lat (usec): min=57, max=111215, avg=20696.68, stdev=13759.10 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 101], 10.00th=[ 165], 20.00th=[ 11600], | 30.00th=[ 13829], 40.00th=[ 16581], 50.00th=[ 19268], 60.00th=[ 22152], | 70.00th=[ 25035], 80.00th=[ 28705], 90.00th=[ 38011], 95.00th=[ 43779], | 99.00th=[ 64750], 99.50th=[ 80217], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 127, max= 672, per=23.83%, avg=386.24, stdev=133.87, samples=29 iops : min= 7, max= 42, avg=23.52, stdev= 8.50, samples=29 write: IOPS=27, BW=444KiB/s (454kB/s)(6544KiB/14748msec); 0 zone resets clat (usec): min=1069, max=181186, avg=17598.81, stdev=17150.36 lat (usec): min=1071, max=181188, avg=17600.61, stdev=17150.53 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 3032], 10.00th=[ 4015], 20.00th=[ 5342], | 30.00th=[ 7570], 40.00th=[ 10159], 50.00th=[ 13566], 60.00th=[ 17695], | 70.00th=[ 20841], 80.00th=[ 26608], 90.00th=[ 35390], 95.00th=[ 42730], | 99.00th=[ 66847], 99.50th=[ 73925], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 256, max= 637, per=25.77%, avg=439.66, stdev=101.34, samples=29 iops : min= 16, max= 39, avg=26.86, stdev= 6.42, samples=29 lat (usec) : 100=2.08%, 250=3.39%, 500=0.13% lat (msec) : 2=0.91%, 4=4.17%, 10=16.67%, 20=33.33%, 50=36.72% lat (msec) : 100=2.21%, 250=0.39% cpu : usr=0.14%, sys=26.45%, ctx=2444, 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=153671: Thu Jun 11 21:19:44 2026 read: IOPS=26, BW=424KiB/s (434kB/s)(6256KiB/14769msec) clat (usec): min=37, max=114610, avg=20140.49, stdev=14994.18 lat (usec): min=37, max=114611, avg=20141.48, stdev=14994.23 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 99], 10.00th=[ 130], 20.00th=[ 10421], | 30.00th=[ 13435], 40.00th=[ 16450], 50.00th=[ 19268], 60.00th=[ 21365], | 70.00th=[ 24511], 80.00th=[ 28705], 90.00th=[ 35914], 95.00th=[ 43779], | 99.00th=[ 76022], 99.50th=[ 98042], 99.90th=[114820], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 253, max= 606, per=26.24%, avg=425.28, stdev=103.32, samples=29 iops : min= 15, max= 37, avg=25.97, stdev= 6.59, samples=29 write: IOPS=25, BW=408KiB/s (418kB/s)(6032KiB/14769msec); 0 zone resets clat (usec): min=1505, max=194584, avg=18047.72, stdev=16787.90 lat (usec): min=1506, max=194587, avg=18049.71, stdev=16788.11 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 3294], 10.00th=[ 4080], 20.00th=[ 5407], | 30.00th=[ 7177], 40.00th=[ 10028], 50.00th=[ 14091], 60.00th=[ 18220], | 70.00th=[ 22676], 80.00th=[ 27919], 90.00th=[ 38536], 95.00th=[ 44303], | 99.00th=[ 67634], 99.50th=[ 96994], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 190, max= 701, per=23.69%, avg=404.17, stdev=128.97, samples=29 iops : min= 11, max= 43, avg=24.66, stdev= 8.12, samples=29 lat (usec) : 50=0.26%, 100=2.47%, 250=4.43%, 500=0.39%, 750=0.26% lat (msec) : 2=0.78%, 4=4.17%, 10=16.41%, 20=29.43%, 50=38.28% lat (msec) : 100=2.86%, 250=0.26% cpu : usr=0.11%, sys=26.01%, ctx=2294, 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=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=153672: Thu Jun 11 21:19:44 2026 read: IOPS=25, BW=412KiB/s (421kB/s)(6032KiB/14655msec) clat (usec): min=44, max=65062, avg=19034.64, stdev=12693.81 lat (usec): min=45, max=65063, avg=19035.69, stdev=12693.76 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 99], 10.00th=[ 124], 20.00th=[ 9896], | 30.00th=[13042], 40.00th=[15926], 50.00th=[18744], 60.00th=[21627], | 70.00th=[25297], 80.00th=[28705], 90.00th=[35914], 95.00th=[41681], | 99.00th=[53216], 99.50th=[55313], 99.90th=[65274], 99.95th=[65274], | 99.99th=[65274] bw ( KiB/s): min= 96, max= 573, per=25.33%, avg=410.55, stdev=105.65, samples=29 iops : min= 6, max= 35, avg=25.07, stdev= 6.56, samples=29 write: IOPS=26, BW=427KiB/s (437kB/s)(6256KiB/14655msec); 0 zone resets clat (usec): min=1610, max=86763, avg=18959.17, stdev=15145.92 lat (usec): min=1612, max=86765, avg=18961.20, stdev=15145.92 clat percentiles (usec): | 1.00th=[ 2180], 5.00th=[ 3130], 10.00th=[ 4178], 20.00th=[ 5997], | 30.00th=[ 8848], 40.00th=[11731], 50.00th=[14746], 60.00th=[19268], | 70.00th=[23200], 80.00th=[29492], 90.00th=[39060], 95.00th=[45876], | 99.00th=[81265], 99.50th=[86508], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 191, max= 736, per=24.99%, avg=426.28, stdev=118.19, samples=29 iops : min= 11, max= 46, avg=26.03, stdev= 7.52, samples=29 lat (usec) : 50=0.13%, 100=2.34%, 250=5.34%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=0.65%, 4=4.30%, 10=13.80%, 20=30.34%, 50=39.84% lat (msec) : 100=2.60% cpu : usr=0.11%, sys=26.29%, ctx=2331, 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=1622KiB/s (1661kB/s), 389KiB/s-424KiB/s (399kB/s-434kB/s), io=23.4MiB (24.5MB), run=14328-14769msec WRITE: bw=1706KiB/s (1747kB/s), 408KiB/s-444KiB/s (418kB/s-455kB/s), io=24.6MiB (25.8MB), run=14328-14769msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153674: Thu Jun 11 21:19:56 2026 read: IOPS=14, BW=229KiB/s (235kB/s)(5920KiB/25845msec) clat (msec): min=4, max=197, avg=19.36, stdev=20.10 lat (msec): min=4, max=197, avg=19.36, stdev=20.10 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 20], 80.00th=[ 28], 90.00th=[ 40], 95.00th=[ 54], | 99.00th=[ 115], 99.50th=[ 122], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 63, max= 480, per=24.75%, avg=227.98, stdev=101.34, samples=51 iops : min= 3, max= 30, avg=13.73, stdev= 6.47, samples=51 write: IOPS=15, BW=246KiB/s (252kB/s)(6368KiB/25845msec); 0 zone resets clat (msec): min=18, max=154, avg=46.77, stdev=19.87 lat (msec): min=18, max=154, avg=46.78, stdev=19.87 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 45], | 70.00th=[ 52], 80.00th=[ 59], 90.00th=[ 74], 95.00th=[ 89], | 99.00th=[ 116], 99.50th=[ 140], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 95, max= 413, per=25.41%, avg=246.45, stdev=101.95, samples=51 iops : min= 5, max= 25, avg=14.86, stdev= 6.55, samples=51 lat (msec) : 10=18.75%, 20=15.10%, 50=47.01%, 100=17.45%, 250=1.69% cpu : usr=0.07%, sys=7.31%, ctx=1587, 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=153675: Thu Jun 11 21:19:56 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5744KiB/25979msec) clat (msec): min=4, max=177, avg=17.48, stdev=18.22 lat (msec): min=4, max=177, avg=17.49, stdev=18.22 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 17], 80.00th=[ 24], 90.00th=[ 36], 95.00th=[ 55], | 99.00th=[ 90], 99.50th=[ 111], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 31, max= 572, per=24.42%, avg=224.88, stdev=133.93, samples=50 iops : min= 1, max= 35, avg=13.54, stdev= 8.45, samples=50 write: IOPS=15, BW=252KiB/s (258kB/s)(6544KiB/25979msec); 0 zone resets clat (msec): min=19, max=185, avg=47.86, stdev=22.26 lat (msec): min=19, max=185, avg=47.87, stdev=22.26 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 38], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 55], 80.00th=[ 63], 90.00th=[ 75], 95.00th=[ 90], | 99.00th=[ 138], 99.50th=[ 140], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 126, max= 448, per=25.85%, avg=250.75, stdev=96.13, samples=51 iops : min= 7, max= 28, avg=15.14, stdev= 6.20, samples=51 lat (msec) : 10=21.22%, 20=14.84%, 50=42.58%, 100=19.14%, 250=2.21% cpu : usr=0.09%, sys=7.31%, ctx=1618, 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=153676: Thu Jun 11 21:19:56 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(6256KiB/25218msec) clat (msec): min=4, max=151, avg=18.12, stdev=18.64 lat (msec): min=4, max=151, avg=18.12, stdev=18.64 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 18], 80.00th=[ 27], 90.00th=[ 37], 95.00th=[ 57], | 99.00th=[ 93], 99.50th=[ 124], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 63, max= 734, per=27.04%, avg=249.02, stdev=142.02, samples=50 iops : min= 3, max= 45, avg=15.02, stdev= 8.97, samples=50 write: IOPS=14, BW=239KiB/s (245kB/s)(6032KiB/25218msec); 0 zone resets clat (msec): min=20, max=186, avg=47.80, stdev=21.38 lat (msec): min=20, max=186, avg=47.81, stdev=21.38 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 39], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 53], 80.00th=[ 61], 90.00th=[ 73], 95.00th=[ 90], | 99.00th=[ 134], 99.50th=[ 142], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 95, max= 416, per=24.68%, avg=239.40, stdev=99.17, samples=50 iops : min= 5, max= 26, avg=14.42, stdev= 6.38, samples=50 lat (msec) : 10=23.31%, 20=14.06%, 50=43.62%, 100=16.93%, 250=2.08% cpu : usr=0.09%, sys=7.56%, ctx=1603, 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=153677: Thu Jun 11 21:19:56 2026 read: IOPS=14, BW=234KiB/s (239kB/s)(6032KiB/25805msec) clat (msec): min=4, max=193, avg=18.19, stdev=18.24 lat (msec): min=4, max=193, avg=18.20, stdev=18.24 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 41], 95.00th=[ 51], | 99.00th=[ 103], 99.50th=[ 110], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 63, max= 512, per=25.29%, avg=232.92, stdev=117.42, samples=51 iops : min= 3, max= 32, avg=14.02, stdev= 7.55, samples=51 write: IOPS=15, BW=242KiB/s (248kB/s)(6256KiB/25805msec); 0 zone resets clat (msec): min=20, max=158, avg=48.17, stdev=22.16 lat (msec): min=20, max=158, avg=48.17, stdev=22.16 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 38], 50.00th=[ 41], 60.00th=[ 47], | 70.00th=[ 53], 80.00th=[ 61], 90.00th=[ 79], 95.00th=[ 97], | 99.00th=[ 124], 99.50th=[ 146], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 31, max= 416, per=25.02%, avg=242.67, stdev=101.44, samples=51 iops : min= 1, max= 26, avg=14.65, stdev= 6.49, samples=51 lat (msec) : 10=21.22%, 20=15.10%, 50=43.62%, 100=17.19%, 250=2.86% cpu : usr=0.11%, sys=7.51%, ctx=1679, 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=922KiB/s (944kB/s), 221KiB/s-248KiB/s (226kB/s-254kB/s), io=23.4MiB (24.5MB), run=25218-25979msec WRITE: bw=970KiB/s (993kB/s), 239KiB/s-252KiB/s (245kB/s-258kB/s), io=24.6MiB (25.8MB), run=25218-25979msec 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=153696: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1598KiB/s (1636kB/s)(7168KiB/4487msec) clat (msec): min=101, max=215, avg=154.98, stdev=40.53 lat (msec): min=101, max=215, avg=154.98, stdev=40.53 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 123], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 142], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 190], 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= 1992, max= 5525, per=68.42%, avg=2893.00, stdev=1754.83, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1141KiB/s (1168kB/s)(5120KiB/4487msec); 0 zone resets clat (msec): min=153, max=2298, avg=676.54, stdev=911.83 lat (msec): min=153, max=2299, avg=676.62, stdev=911.83 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 1992, max= 4015, per=45.35%, avg=2685.00, stdev=1152.15, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 250=75.00%, 500=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=23.96%, ctx=662, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153697: Thu Jun 11 21:20:06 2026 read: IOPS=0, BW=423KiB/s (433kB/s)(2048KiB/4843msec) clat (msec): min=56, max=385, avg=221.12, stdev=232.98 lat (msec): min=56, max=385, avg=221.12, stdev=232.99 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 57], 40.00th=[ 57], 50.00th=[ 57], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1872, max= 2007, per=45.87%, avg=1939.50, stdev=95.46, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2114KiB/s (2165kB/s)(10.0MiB/4843msec); 0 zone resets clat (msec): min=127, max=1756, avg=424.54, stdev=480.73 lat (msec): min=127, max=1756, avg=424.69, stdev=480.78 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 131], | 30.00th=[ 161], 40.00th=[ 266], 50.00th=[ 284], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 401], 90.00th=[ 451], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 2048, max= 4087, per=61.50%, avg=3641.00, stdev=891.49, samples=5 iops : min= 2, max= 3, avg= 2.80, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=58.33%, 2000=8.33% cpu : usr=0.00%, sys=22.61%, ctx=358, 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=153698: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1317KiB/s (1349kB/s)(6144KiB/4664msec) clat (usec): min=555, max=1792.8k, avg=399648.20, stdev=691480.51 lat (usec): min=556, max=1792.8k, avg=399649.10, stdev=691480.62 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], | 20.00th=[ 594], 30.00th=[ 594], 40.00th=[ 137364], | 50.00th=[ 137364], 60.00th=[ 173016], 70.00th=[ 291505], | 80.00th=[ 291505], 90.00th=[1786774], 95.00th=[1786774], | 99.00th=[1786774], 99.50th=[1786774], 99.90th=[1786774], | 99.95th=[1786774], 99.99th=[1786774] bw ( KiB/s): min= 2007, max= 4071, per=60.13%, avg=2542.25, stdev=1019.33, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1317KiB/s (1349kB/s)(6144KiB/4664msec); 0 zone resets clat (msec): min=197, max=542, avg=352.41, stdev=154.39 lat (msec): min=197, max=542, avg=352.72, stdev=154.49 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 397], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2043, max= 4071, per=51.29%, avg=3036.50, stdev=1144.86, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 750=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=21.51%, ctx=437, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153699: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1077KiB/s (1103kB/s)(5120KiB/4753msec) clat (usec): min=451, max=1987.2k, avg=454802.09, stdev=860584.33 lat (usec): min=452, max=1987.2k, avg=454803.15, stdev=860583.99 clat percentiles (usec): | 1.00th=[ 453], 5.00th=[ 453], 10.00th=[ 453], | 20.00th=[ 453], 30.00th=[ 750], 40.00th=[ 750], | 50.00th=[ 83362], 60.00th=[ 83362], 70.00th=[ 202376], | 80.00th=[ 202376], 90.00th=[1988101], 95.00th=[1988101], | 99.00th=[1988101], 99.50th=[1988101], 99.90th=[1988101], | 99.95th=[1988101], 99.99th=[1988101] bw ( KiB/s): min= 2007, max= 6144, per=96.39%, avg=4075.50, stdev=2925.30, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1508KiB/s (1544kB/s)(7168KiB/4753msec); 0 zone resets clat (msec): min=109, max=544, avg=347.00, stdev=186.03 lat (msec): min=109, max=544, avg=347.10, stdev=186.04 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 167], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 388], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1914, max= 2048, per=33.77%, avg=1999.20, stdev=52.52, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=22.52%, ctx=632, 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=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=4229KiB/s (4330kB/s), 423KiB/s-1598KiB/s (433kB/s-1636kB/s), io=20.0MiB (20.0MB), run=4487-4843msec WRITE: bw=5920KiB/s (6062kB/s), 1141KiB/s-2114KiB/s (1168kB/s-2165kB/s), io=28.0MiB (29.4MB), run=4487-4843msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153691: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1667KiB/s (1707kB/s)(7168KiB/4301msec) clat (msec): min=78, max=407, avg=185.21, stdev=121.79 lat (msec): min=78, max=407, avg=185.22, stdev=121.79 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 95], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 126], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 292], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 1988, max= 5163, per=94.62%, avg=3749.00, stdev=1615.69, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 write: IOPS=1, BW=1190KiB/s (1219kB/s)(5120KiB/4301msec); 0 zone resets clat (msec): min=148, max=2160, avg=583.66, stdev=881.83 lat (msec): min=148, max=2160, avg=583.75, stdev=881.86 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 209], 80.00th=[ 209], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 1721, max= 4000, per=43.94%, avg=2437.00, stdev=1051.29, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=9.28%, ctx=125, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153692: Thu Jun 11 21:20:06 2026 read: IOPS=0, BW=399KiB/s (408kB/s)(2048KiB/5134msec) clat (msec): min=74, max=382, avg=228.81, stdev=217.79 lat (msec): min=74, max=382, avg=228.82, stdev=217.79 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 75], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1712, max= 2043, per=47.39%, avg=1877.50, stdev=234.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1995KiB/s (2042kB/s)(10.0MiB/5134msec); 0 zone resets clat (msec): min=105, max=1913, avg=465.51, stdev=530.85 lat (msec): min=105, max=1913, avg=465.62, stdev=530.87 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 115], | 30.00th=[ 174], 40.00th=[ 243], 50.00th=[ 262], 60.00th=[ 422], | 70.00th=[ 430], 80.00th=[ 447], 90.00th=[ 542], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 1712, max= 4096, per=41.05%, avg=2276.43, stdev=811.16, samples=7 iops : min= 1, max= 4, avg= 1.71, stdev= 1.11, samples=7 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.04%, sys=8.38%, ctx=200, 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=153693: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1189KiB/s (1217kB/s)(6144KiB/5169msec) clat (msec): min=34, max=1953, avg=504.67, stdev=752.06 lat (msec): min=34, max=1953, avg=504.67, stdev=752.06 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 58], | 30.00th=[ 58], 40.00th=[ 86], 50.00th=[ 86], 60.00th=[ 197], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 2039, max= 4087, per=85.19%, avg=3375.33, stdev=1158.12, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1189KiB/s (1217kB/s)(6144KiB/5169msec); 0 zone resets clat (msec): min=116, max=704, avg=347.49, stdev=230.66 lat (msec): min=116, max=704, avg=347.61, stdev=230.64 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 380], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1715, max= 2048, per=35.32%, avg=1958.80, stdev=138.78, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=8.33%, 750=25.00% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=5.28%, ctx=136, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153694: Thu Jun 11 21:20:06 2026 read: IOPS=1, BW=1175KiB/s (1203kB/s)(5120KiB/4357msec) clat (msec): min=73, max=519, avg=209.00, stdev=178.95 lat (msec): min=73, max=519, avg=209.00, stdev=178.95 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 146], 60.00th=[ 146], | 70.00th=[ 192], 80.00th=[ 192], 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= 1988, max= 4087, per=67.94%, avg=2691.67, stdev=1208.41, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1645KiB/s (1685kB/s)(7168KiB/4357msec); 0 zone resets clat (msec): min=106, max=1694, avg=464.41, stdev=558.24 lat (msec): min=106, max=1694, avg=464.51, stdev=558.24 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 253], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 447], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 1729, max= 4000, per=44.27%, avg=2455.00, stdev=1040.75, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=7.48%, ctx=110, 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=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=3962KiB/s (4057kB/s), 399KiB/s-1667KiB/s (408kB/s-1707kB/s), io=20.0MiB (20.0MB), run=4301-5169msec WRITE: bw=5547KiB/s (5680kB/s), 1189KiB/s-1995KiB/s (1217kB/s-2042kB/s), io=28.0MiB (29.4MB), run=4301-5169msec 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=153704: Thu Jun 11 21:20:14 2026 read: IOPS=4, BW=18.2MiB/s (19.1MB/s)(12.0MiB/660msec) clat (msec): min=154, max=258, avg=198.45, stdev=53.77 lat (msec): min=154, max=258, avg=198.46, stdev=53.77 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=33.54%, ctx=89, 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=153705: Thu Jun 11 21:20:14 2026 read: IOPS=0, BW=1986KiB/s (2034kB/s)(4096KiB/2062msec) clat (nsec): min=602133k, max=602133k, avg=602133039.00, stdev= 0.00 lat (nsec): min=602134k, max=602134k, avg=602134116.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 5809, max= 5809, per=73.12%, avg=5809.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3973KiB/s (4068kB/s)(8192KiB/2062msec); 0 zone resets clat (msec): min=649, max=755, avg=702.54, stdev=74.56 lat (msec): min=650, max=755, avg=702.98, stdev=74.56 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8192, max= 8192, per=51.88%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=10.87%, ctx=69, 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=153706: Thu Jun 11 21:20:14 2026 write: IOPS=1, BW=5922KiB/s (6064kB/s)(12.0MiB/2075msec); 0 zone resets clat (msec): min=383, max=939, avg=678.60, stdev=279.54 lat (msec): min=384, max=940, avg=679.52, stdev=279.74 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 5885, max= 8192, per=44.57%, avg=7038.50, stdev=1631.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=11.81%, ctx=82, 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=153707: Thu Jun 11 21:20:14 2026 write: IOPS=2, BW=10.1MiB/s (10.6MB/s)(12.0MiB/1190msec); 0 zone resets clat (msec): min=216, max=569, avg=385.02, stdev=177.09 lat (msec): min=216, max=569, avg=385.40, stdev=177.14 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min=11959, max=11959, per=75.73%, avg=11959.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=17.49%, ctx=88, 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=7946KiB/s (8136kB/s), 1986KiB/s-18.2MiB/s (2034kB/s-19.1MB/s), io=16.0MiB (16.8MB), run=660-2062msec WRITE: bw=15.4MiB/s (16.2MB/s), 3973KiB/s-10.1MiB/s (4068kB/s-10.6MB/s), io=32.0MiB (33.6MB), run=1190-2075msec rand-rw: (groupid=0, jobs=1): err= 0: pid=153710: Thu Jun 11 21:20:15 2026 read: IOPS=1, BW=7728KiB/s (7914kB/s)(12.0MiB/1590msec) clat (msec): min=461, max=568, avg=529.69, stdev=59.50 lat (msec): min=461, max=568, avg=529.69, stdev=59.50 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 5468, max= 8192, per=67.37%, avg=6830.00, stdev=1926.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=42.04%, ctx=1517, 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=153711: Thu Jun 11 21:20:15 2026 read: IOPS=0, BW=2535KiB/s (2595kB/s)(4096KiB/1616msec) clat (nsec): min=450727k, max=450727k, avg=450726755.00, stdev= 0.00 lat (nsec): min=450729k, max=450729k, avg=450729221.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 5490, max= 5490, per=54.15%, avg=5490.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5069KiB/s (5191kB/s)(8192KiB/1616msec); 0 zone resets clat (msec): min=472, max=683, avg=578.43, stdev=149.21 lat (msec): min=473, max=684, avg=578.80, stdev=149.26 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 8192, max= 8192, per=48.18%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=13.25%, ctx=369, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=153712: Thu Jun 11 21:20:15 2026 write: IOPS=1, BW=6377KiB/s (6530kB/s)(12.0MiB/1927msec); 0 zone resets clat (msec): min=159, max=1059, avg=641.29, stdev=453.48 lat (msec): min=159, max=1060, avg=641.82, stdev=453.56 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8192, max= 8192, per=48.18%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.10%, sys=12.88%, ctx=55, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=153713: Thu Jun 11 21:20:15 2026 write: IOPS=2, BW=8563KiB/s (8769kB/s)(12.0MiB/1435msec); 0 zone resets clat (msec): min=215, max=700, avg=477.14, stdev=244.83 lat (msec): min=215, max=701, avg=477.85, stdev=245.30 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7846, max= 7846, per=46.14%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=27.13%, ctx=106, 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=9.90MiB/s (10.4MB/s), 2535KiB/s-7728KiB/s (2595kB/s-7914kB/s), io=16.0MiB (16.8MB), run=1590-1616msec WRITE: bw=16.6MiB/s (17.4MB/s), 5069KiB/s-8563KiB/s (5191kB/s-8769kB/s), io=32.0MiB (33.6MB), run=1435-1927msec