== sanity test 398b: DIO and buffer IO race ============== 17:22:31 (1786483351) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.99395 s, 16.8 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=146171: Tue Aug 11 17:23:37 2026 read: IOPS=26, BW=108KiB/s (110kB/s)(5992KiB/55620msec) clat (usec): min=30, max=667815, avg=18536.13, stdev=20699.84 lat (usec): min=31, max=667816, avg=18540.22, stdev=20699.81 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 93], 10.00th=[ 6718], 20.00th=[ 9634], | 30.00th=[ 11338], 40.00th=[ 13698], 50.00th=[ 15533], 60.00th=[ 18482], | 70.00th=[ 22414], 80.00th=[ 26608], 90.00th=[ 32900], 95.00th=[ 38536], | 99.00th=[ 58459], 99.50th=[ 67634], 99.90th=[123208], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 31, max= 168, per=25.45%, avg=107.64, stdev=28.91, samples=110 iops : min= 7, max= 42, avg=26.50, stdev= 7.24, samples=110 write: IOPS=28, BW=113KiB/s (116kB/s)(6296KiB/55620msec); 0 zone resets clat (usec): min=727, max=129341, avg=17546.84, stdev=16078.61 lat (usec): min=728, max=129343, avg=17548.28, stdev=16078.39 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1598], 10.00th=[ 2212], 20.00th=[ 3261], | 30.00th=[ 5604], 40.00th=[ 9896], 50.00th=[ 14222], 60.00th=[ 18220], | 70.00th=[ 22676], 80.00th=[ 28967], 90.00th=[ 38011], 95.00th=[ 45876], | 99.00th=[ 72877], 99.50th=[ 94897], 99.90th=[111674], 99.95th=[129500], | 99.99th=[129500] bw ( KiB/s): min= 31, max= 176, per=25.54%, avg=113.16, stdev=28.41, samples=110 iops : min= 7, max= 44, avg=27.89, stdev= 7.11, samples=110 lat (usec) : 50=0.49%, 100=2.31%, 250=1.11%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.29% lat (msec) : 2=3.84%, 4=8.37%, 10=14.97%, 20=32.49%, 50=33.33% lat (msec) : 100=2.41%, 250=0.23%, 750=0.03% cpu : usr=0.08%, sys=16.86%, ctx=7633, 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=146172: Tue Aug 11 17:23:37 2026 read: IOPS=26, BW=106KiB/s (108kB/s)(5940KiB/56292msec) clat (usec): min=36, max=592134, avg=18180.23, stdev=18929.53 lat (usec): min=36, max=592134, avg=18183.30, stdev=18928.80 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 106], 10.00th=[ 7046], 20.00th=[ 9372], | 30.00th=[ 11338], 40.00th=[ 13173], 50.00th=[ 15008], 60.00th=[ 17695], | 70.00th=[ 21890], 80.00th=[ 26608], 90.00th=[ 32637], 95.00th=[ 38536], | 99.00th=[ 56886], 99.50th=[ 66847], 99.90th=[111674], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 31, max= 200, per=24.76%, avg=104.73, stdev=31.49, samples=111 iops : min= 7, max= 50, avg=25.77, stdev= 7.96, samples=111 write: IOPS=28, BW=113KiB/s (115kB/s)(6348KiB/56292msec); 0 zone resets clat (usec): min=657, max=153893, avg=18306.08, stdev=16830.26 lat (usec): min=657, max=153894, avg=18308.07, stdev=16831.51 clat percentiles (usec): | 1.00th=[ 963], 5.00th=[ 1582], 10.00th=[ 2147], 20.00th=[ 3359], | 30.00th=[ 5473], 40.00th=[ 10683], 50.00th=[ 14353], 60.00th=[ 18744], | 70.00th=[ 23725], 80.00th=[ 29754], 90.00th=[ 40633], 95.00th=[ 47973], | 99.00th=[ 74974], 99.50th=[ 89654], 99.90th=[119014], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 39, max= 184, per=25.00%, avg=110.74, stdev=28.86, samples=111 iops : min= 9, max= 46, avg=27.28, stdev= 7.21, samples=111 lat (usec) : 50=0.36%, 100=1.79%, 250=1.24%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.59% lat (msec) : 2=3.91%, 4=7.91%, 10=15.17%, 20=33.24%, 50=32.42% lat (msec) : 100=2.96%, 250=0.16%, 750=0.03% cpu : usr=0.12%, sys=16.68%, ctx=7669, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146173: Tue Aug 11 17:23:37 2026 read: IOPS=26, BW=106KiB/s (109kB/s)(6028KiB/56739msec) clat (usec): min=30, max=660203, avg=18119.82, stdev=20573.52 lat (usec): min=30, max=660204, avg=18120.99, stdev=20573.49 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 85], 10.00th=[ 5669], 20.00th=[ 9503], | 30.00th=[ 11600], 40.00th=[ 13304], 50.00th=[ 15533], 60.00th=[ 18744], | 70.00th=[ 22152], 80.00th=[ 26084], 90.00th=[ 31327], 95.00th=[ 37487], | 99.00th=[ 54789], 99.50th=[ 71828], 99.90th=[200279], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 23, max= 166, per=24.73%, avg=104.62, stdev=31.42, samples=112 iops : min= 5, max= 41, avg=25.75, stdev= 7.85, samples=112 write: IOPS=27, BW=110KiB/s (113kB/s)(6260KiB/56739msec); 0 zone resets clat (usec): min=626, max=173021, avg=18660.72, stdev=17122.43 lat (usec): min=627, max=173022, avg=18662.04, stdev=17122.42 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1385], 10.00th=[ 2212], 20.00th=[ 3425], | 30.00th=[ 5932], 40.00th=[ 11076], 50.00th=[ 15139], 60.00th=[ 19268], | 70.00th=[ 23987], 80.00th=[ 31065], 90.00th=[ 39584], 95.00th=[ 47449], | 99.00th=[ 77071], 99.50th=[ 88605], 99.90th=[158335], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 192, per=24.45%, avg=108.33, stdev=28.73, samples=112 iops : min= 7, max= 48, avg=26.68, stdev= 7.21, samples=112 lat (usec) : 50=0.68%, 100=2.64%, 250=0.98%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.42% lat (msec) : 2=3.84%, 4=7.58%, 10=14.19%, 20=31.77%, 50=34.86% lat (msec) : 100=2.60%, 250=0.20%, 750=0.03% cpu : usr=0.11%, sys=16.73%, ctx=7771, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146174: Tue Aug 11 17:23:37 2026 read: IOPS=26, BW=107KiB/s (110kB/s)(6052KiB/56452msec) clat (usec): min=19, max=129954, avg=17846.42, stdev=11606.80 lat (usec): min=19, max=129955, avg=17847.58, stdev=11606.74 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 88], 10.00th=[ 6587], 20.00th=[ 9372], | 30.00th=[ 11338], 40.00th=[ 13304], 50.00th=[ 15533], 60.00th=[ 18744], | 70.00th=[ 22676], 80.00th=[ 26084], 90.00th=[ 31851], 95.00th=[ 39060], | 99.00th=[ 52691], 99.50th=[ 63701], 99.90th=[ 83362], 99.95th=[129500], | 99.99th=[129500] bw ( KiB/s): min= 31, max= 183, per=25.26%, avg=106.86, stdev=30.62, samples=112 iops : min= 7, max= 45, avg=26.30, stdev= 7.69, samples=112 write: IOPS=27, BW=110KiB/s (113kB/s)(6236KiB/56452msec); 0 zone resets clat (usec): min=776, max=671794, avg=18746.68, stdev=23895.63 lat (usec): min=777, max=671795, avg=18748.21, stdev=23895.56 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1598], 10.00th=[ 2212], 20.00th=[ 3228], | 30.00th=[ 5080], 40.00th=[ 10290], 50.00th=[ 14353], 60.00th=[ 18482], | 70.00th=[ 23725], 80.00th=[ 30540], 90.00th=[ 40109], 95.00th=[ 50070], | 99.00th=[ 77071], 99.50th=[ 94897], 99.90th=[160433], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 31, max= 224, per=24.81%, avg=109.89, stdev=32.08, samples=112 iops : min= 7, max= 56, avg=27.07, stdev= 8.08, samples=112 lat (usec) : 20=0.03%, 50=0.52%, 100=2.38%, 250=1.14%, 500=0.03% lat (usec) : 1000=0.33% lat (msec) : 2=3.55%, 4=9.15%, 10=14.52%, 20=31.48%, 50=33.79% lat (msec) : 100=2.90%, 250=0.16%, 750=0.03% cpu : usr=0.12%, sys=16.92%, ctx=7624, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=423KiB/s (433kB/s), 106KiB/s-108KiB/s (108kB/s-110kB/s), io=23.4MiB (24.6MB), run=55620-56739msec WRITE: bw=443KiB/s (454kB/s), 110KiB/s-113KiB/s (113kB/s-116kB/s), io=24.6MiB (25.7MB), run=55620-56739msec fio: pid=146178, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=146176: Tue Aug 11 17:24:15 2026 read: IOPS=15, BW=63.1KiB/s (64.7kB/s)(5992KiB/94887msec) clat (msec): min=3, max=681, avg=16.57, stdev=23.11 lat (msec): min=3, max=681, avg=16.57, stdev=23.11 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 43], | 99.00th=[ 85], 99.50th=[ 106], 99.90th=[ 211], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 192, per=27.02%, avg=62.95, stdev=39.56, samples=188 iops : min= 1, max= 48, avg=15.35, stdev= 9.95, samples=188 write: IOPS=16, BW=66.4KiB/s (67.9kB/s)(6296KiB/94887msec); 0 zone resets clat (msec): min=13, max=232, avg=44.48, stdev=25.20 lat (msec): min=13, max=232, avg=44.48, stdev=25.20 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 29], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 64], 90.00th=[ 79], 95.00th=[ 93], | 99.00th=[ 130], 99.50th=[ 146], 99.90th=[ 197], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 7, max= 144, per=27.13%, avg=66.47, stdev=32.80, samples=187 iops : min= 1, max= 36, avg=16.22, stdev= 8.31, samples=187 lat (msec) : 4=0.88%, 10=19.34%, 20=20.64%, 50=41.73%, 100=15.49% lat (msec) : 250=1.89%, 750=0.03% cpu : usr=0.06%, sys=5.20%, ctx=5855, 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=146177: Tue Aug 11 17:24:15 2026 read: IOPS=15, BW=62.6KiB/s (64.1kB/s)(5940KiB/94818msec) clat (msec): min=2, max=605, avg=16.37, stdev=21.13 lat (msec): min=2, max=605, avg=16.37, stdev=21.13 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 16], 80.00th=[ 22], 90.00th=[ 33], 95.00th=[ 44], | 99.00th=[ 73], 99.50th=[ 92], 99.90th=[ 159], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 5, max= 192, per=27.13%, avg=63.20, stdev=40.27, samples=186 iops : min= 1, max= 48, avg=15.41, stdev=10.16, samples=186 write: IOPS=16, BW=66.9KiB/s (68.6kB/s)(6348KiB/94818msec); 0 zone resets clat (msec): min=13, max=193, avg=44.39, stdev=25.17 lat (msec): min=13, max=193, avg=44.39, stdev=25.18 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 22], 20.00th=[ 25], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 64], 90.00th=[ 81], 95.00th=[ 92], | 99.00th=[ 128], 99.50th=[ 167], 99.90th=[ 188], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 5, max= 152, per=27.21%, avg=66.65, stdev=33.10, samples=188 iops : min= 1, max= 38, avg=16.27, stdev= 8.35, samples=188 lat (msec) : 4=1.04%, 10=18.10%, 20=21.22%, 50=42.29%, 100=15.40% lat (msec) : 250=1.92%, 750=0.03% cpu : usr=0.07%, sys=5.21%, ctx=5939, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=146178: Tue Aug 11 17:24:15 2026 read: IOPS=13, BW=53.8KiB/s (55.1kB/s)(4160KiB/77254msec) clat (msec): min=2, max=183, avg=19.91, stdev=16.99 lat (msec): min=2, max=183, avg=19.91, stdev=16.99 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 29], 90.00th=[ 40], 95.00th=[ 51], | 99.00th=[ 78], 99.50th=[ 108], 99.90th=[ 159], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 7, max= 160, per=23.22%, avg=54.11, stdev=31.08, samples=151 iops : min= 1, max= 40, avg=13.11, stdev= 7.79, samples=151 write: IOPS=14, BW=56.9KiB/s (58.2kB/s)(4392KiB/77254msec); 0 zone resets clat (msec): min=15, max=629, avg=51.46, stdev=32.20 lat (msec): min=15, max=629, avg=51.46, stdev=32.20 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 62], 80.00th=[ 73], 90.00th=[ 85], 95.00th=[ 100], | 99.00th=[ 142], 99.50th=[ 180], 99.90th=[ 226], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 15, max= 144, per=23.06%, avg=56.49, stdev=29.92, samples=153 iops : min= 3, max= 36, avg=13.71, stdev= 7.56, samples=153 lat (msec) : 4=0.56%, 10=13.51%, 20=19.12%, 50=41.94%, 100=22.25% lat (msec) : 250=2.52%, 750=0.05% cpu : usr=0.06%, sys=4.83%, ctx=3773, majf=0, minf=20 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=1041,1098,0,0 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=146179: Tue Aug 11 17:24:15 2026 read: IOPS=16, BW=64.3KiB/s (65.9kB/s)(6052KiB/94090msec) clat (msec): min=2, max=133, avg=15.93, stdev=13.89 lat (msec): min=2, max=133, avg=15.93, stdev=13.89 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 22], 90.00th=[ 34], 95.00th=[ 43], | 99.00th=[ 74], 99.50th=[ 87], 99.90th=[ 126], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 7, max= 208, per=27.69%, avg=64.51, stdev=39.22, samples=186 iops : min= 1, max= 52, avg=15.74, stdev= 9.89, samples=186 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(6236KiB/94090msec); 0 zone resets clat (msec): min=14, max=630, avg=44.85, stdev=29.45 lat (msec): min=14, max=630, avg=44.85, stdev=29.45 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 35], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 64], 90.00th=[ 81], 95.00th=[ 93], | 99.00th=[ 127], 99.50th=[ 155], 99.90th=[ 228], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 136, per=26.98%, avg=66.10, stdev=32.86, samples=187 iops : min= 1, max= 34, avg=16.13, stdev= 8.31, samples=187 lat (msec) : 4=1.11%, 10=18.29%, 20=21.94%, 50=41.50%, 100=15.10% lat (msec) : 250=2.02%, 750=0.03% cpu : usr=0.08%, sys=5.28%, ctx=5834, 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=233KiB/s (239kB/s), 53.8KiB/s-64.3KiB/s (55.1kB/s-65.9kB/s), io=21.6MiB (22.7MB), run=77254-94887msec WRITE: bw=245KiB/s (251kB/s), 56.9KiB/s-66.9KiB/s (58.2kB/s-68.6kB/s), io=22.7MiB (23.8MB), run=77254-94887msec 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=146208: Tue Aug 11 17:24:32 2026 read: IOPS=29, BW=466KiB/s (477kB/s)(5920KiB/12700msec) clat (usec): min=34, max=85838, avg=17135.54, stdev=11403.56 lat (usec): min=35, max=85839, avg=17136.49, stdev=11403.59 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 70], 10.00th=[ 101], 20.00th=[ 9765], | 30.00th=[12649], 40.00th=[14484], 50.00th=[16450], 60.00th=[18744], | 70.00th=[21890], 80.00th=[25560], 90.00th=[29754], 95.00th=[35390], | 99.00th=[47973], 99.50th=[71828], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 318, max= 733, per=25.85%, avg=466.32, stdev=100.41, samples=25 iops : min= 19, max= 45, avg=28.60, stdev= 6.30, samples=25 write: IOPS=31, BW=501KiB/s (513kB/s)(6368KiB/12700msec); 0 zone resets clat (usec): min=1233, max=68115, avg=15619.28, stdev=13325.49 lat (usec): min=1235, max=68116, avg=15620.98, stdev=13325.47 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 2180], 10.00th=[ 3163], 20.00th=[ 4359], | 30.00th=[ 5407], 40.00th=[ 7046], 50.00th=[11994], 60.00th=[16057], | 70.00th=[19792], 80.00th=[25822], 90.00th=[34341], 95.00th=[41681], | 99.00th=[59507], 99.50th=[62653], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 223, max= 734, per=26.43%, avg=501.68, stdev=109.23, samples=25 iops : min= 13, max= 45, avg=30.80, stdev= 6.89, samples=25 lat (usec) : 50=0.65%, 100=4.04%, 250=2.47%, 750=0.13%, 1000=0.13% lat (msec) : 2=2.34%, 4=5.86%, 10=18.62%, 20=32.94%, 50=30.99% lat (msec) : 100=1.82% cpu : usr=0.08%, sys=21.77%, ctx=2035, 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=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=146211: Tue Aug 11 17:24:32 2026 read: IOPS=27, BW=435KiB/s (445kB/s)(5744KiB/13205msec) clat (usec): min=36, max=77139, avg=18725.82, stdev=12016.86 lat (usec): min=37, max=77140, avg=18727.17, stdev=12017.05 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 91], 10.00th=[ 115], 20.00th=[11469], | 30.00th=[12911], 40.00th=[15139], 50.00th=[17433], 60.00th=[20317], | 70.00th=[22938], 80.00th=[26608], 90.00th=[32900], 95.00th=[39060], | 99.00th=[57934], 99.50th=[67634], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 254, max= 606, per=24.04%, avg=433.62, stdev=104.21, samples=26 iops : min= 15, max= 37, avg=26.58, stdev= 6.46, samples=26 write: IOPS=30, BW=496KiB/s (507kB/s)(6544KiB/13205msec); 0 zone resets clat (usec): min=1538, max=73621, avg=15726.16, stdev=13138.98 lat (usec): min=1539, max=73623, avg=15727.94, stdev=13138.81 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2769], 10.00th=[ 3294], 20.00th=[ 4424], | 30.00th=[ 5604], 40.00th=[ 7635], 50.00th=[10945], 60.00th=[15008], | 70.00th=[20841], 80.00th=[27657], 90.00th=[34341], 95.00th=[40633], | 99.00th=[52167], 99.50th=[59507], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 352, max= 666, per=26.11%, avg=495.50, stdev=94.11, samples=26 iops : min= 22, max= 41, avg=30.46, stdev= 5.91, samples=26 lat (usec) : 50=0.26%, 100=2.73%, 250=2.60%, 500=0.26% lat (msec) : 2=1.04%, 4=7.81%, 10=18.23%, 20=30.99%, 50=34.51% lat (msec) : 100=1.56% cpu : usr=0.13%, sys=21.67%, ctx=2097, 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=146213: Tue Aug 11 17:24:32 2026 read: IOPS=29, BW=471KiB/s (482kB/s)(6256KiB/13277msec) clat (usec): min=37, max=105228, avg=17760.76, stdev=13137.55 lat (usec): min=38, max=105229, avg=17761.87, stdev=13137.63 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 86], 10.00th=[ 113], 20.00th=[ 8848], | 30.00th=[ 11994], 40.00th=[ 14484], 50.00th=[ 16450], 60.00th=[ 19530], | 70.00th=[ 22152], 80.00th=[ 27132], 90.00th=[ 32375], 95.00th=[ 39060], | 99.00th=[ 62129], 99.50th=[ 72877], 99.90th=[105382], 99.95th=[105382], | 99.99th=[105382] bw ( KiB/s): min= 203, max= 702, per=26.12%, avg=471.23, stdev=124.51, samples=26 iops : min= 12, max= 43, avg=28.92, stdev= 7.74, samples=26 write: IOPS=28, BW=454KiB/s (465kB/s)(6032KiB/13277msec); 0 zone resets clat (usec): min=1233, max=104412, avg=16463.11, stdev=15081.26 lat (usec): min=1236, max=104413, avg=16464.86, stdev=15081.16 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 2474], 10.00th=[ 3261], 20.00th=[ 4621], | 30.00th=[ 5604], 40.00th=[ 8455], 50.00th=[ 12387], 60.00th=[ 15926], | 70.00th=[ 20317], 80.00th=[ 27132], 90.00th=[ 35390], 95.00th=[ 42206], | 99.00th=[ 82314], 99.50th=[101188], 99.90th=[104334], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 284, max= 640, per=23.65%, avg=448.88, stdev=118.34, samples=26 iops : min= 17, max= 40, avg=27.54, stdev= 7.36, samples=26 lat (usec) : 50=0.78%, 100=3.12%, 250=4.69%, 500=0.13%, 750=0.13% lat (msec) : 2=1.30%, 4=5.60%, 10=17.84%, 20=31.90%, 50=32.03% lat (msec) : 100=2.08%, 250=0.39% cpu : usr=0.05%, sys=21.16%, ctx=1996, 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=146214: Tue Aug 11 17:24:32 2026 read: IOPS=28, BW=464KiB/s (475kB/s)(6032KiB/13012msec) clat (usec): min=40, max=80131, avg=17506.13, stdev=11563.52 lat (usec): min=42, max=80132, avg=17507.16, stdev=11563.43 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 69], 10.00th=[ 100], 20.00th=[ 9241], | 30.00th=[12256], 40.00th=[14746], 50.00th=[17171], 60.00th=[19792], | 70.00th=[22676], 80.00th=[27132], 90.00th=[31327], 95.00th=[34866], | 99.00th=[46400], 99.50th=[67634], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 255, max= 670, per=25.45%, avg=459.04, stdev=103.45, samples=25 iops : min= 15, max= 41, avg=28.16, stdev= 6.40, samples=25 write: IOPS=30, BW=481KiB/s (492kB/s)(6256KiB/13012msec); 0 zone resets clat (usec): min=1448, max=82060, avg=16132.95, stdev=14289.24 lat (usec): min=1450, max=82061, avg=16134.60, stdev=14289.28 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2704], 10.00th=[ 3359], 20.00th=[ 4293], | 30.00th=[ 5669], 40.00th=[ 8225], 50.00th=[12256], 60.00th=[15401], | 70.00th=[20317], 80.00th=[26346], 90.00th=[34341], 95.00th=[43779], | 99.00th=[70779], 99.50th=[79168], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 254, max= 701, per=25.27%, avg=479.56, stdev=127.37, samples=25 iops : min= 15, max= 43, avg=29.44, stdev= 7.97, samples=25 lat (usec) : 50=0.78%, 100=4.43%, 250=2.47%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.30%, 4=7.81%, 10=16.80%, 20=31.51%, 50=32.42% lat (msec) : 100=2.08% cpu : usr=0.05%, sys=21.78%, ctx=2016, 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=1804KiB/s (1847kB/s), 435KiB/s-471KiB/s (445kB/s-482kB/s), io=23.4MiB (24.5MB), run=12700-13277msec WRITE: bw=1898KiB/s (1944kB/s), 454KiB/s-501KiB/s (465kB/s-513kB/s), io=24.6MiB (25.8MB), run=12700-13277msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146207: Tue Aug 11 17:24:45 2026 read: IOPS=14, BW=230KiB/s (236kB/s)(5920KiB/25721msec) clat (msec): min=4, max=134, avg=16.80, stdev=15.58 lat (msec): min=4, max=134, avg=16.80, stdev=15.58 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 21], 90.00th=[ 34], 95.00th=[ 49], | 99.00th=[ 86], 99.50th=[ 106], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 31, max= 480, per=25.06%, avg=229.82, stdev=101.33, samples=51 iops : min= 1, max= 30, avg=13.82, stdev= 6.41, samples=51 write: IOPS=15, BW=248KiB/s (254kB/s)(6368KiB/25721msec); 0 zone resets clat (msec): min=18, max=134, avg=48.61, stdev=19.23 lat (msec): min=18, max=134, avg=48.61, stdev=19.23 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 37], 40.00th=[ 42], 50.00th=[ 45], 60.00th=[ 49], | 70.00th=[ 54], 80.00th=[ 61], 90.00th=[ 73], 95.00th=[ 90], | 99.00th=[ 114], 99.50th=[ 134], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 31, max= 448, per=25.73%, avg=248.06, stdev=97.04, samples=51 iops : min= 1, max= 28, avg=14.96, stdev= 6.14, samples=51 lat (msec) : 10=19.92%, 20=18.10%, 50=41.15%, 100=19.14%, 250=1.69% cpu : usr=0.07%, sys=5.21%, ctx=1495, 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=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=146209: Tue Aug 11 17:24:45 2026 read: IOPS=13, BW=220KiB/s (225kB/s)(5744KiB/26115msec) clat (msec): min=4, max=133, avg=16.32, stdev=17.12 lat (msec): min=4, max=133, avg=16.32, stdev=17.12 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 15], 80.00th=[ 19], 90.00th=[ 33], 95.00th=[ 54], | 99.00th=[ 90], 99.50th=[ 115], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 32, max= 510, per=23.98%, avg=219.94, stdev=121.78, samples=51 iops : min= 2, max= 31, avg=13.20, stdev= 7.70, samples=51 write: IOPS=15, BW=251KiB/s (257kB/s)(6544KiB/26115msec); 0 zone resets clat (msec): min=18, max=164, avg=49.24, stdev=20.86 lat (msec): min=18, max=164, avg=49.25, stdev=20.86 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 45], 60.00th=[ 51], | 70.00th=[ 56], 80.00th=[ 63], 90.00th=[ 75], 95.00th=[ 93], | 99.00th=[ 111], 99.50th=[ 132], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 63, max= 444, per=25.71%, avg=247.86, stdev=86.46, samples=51 iops : min= 3, max= 27, avg=14.94, stdev= 5.52, samples=51 lat (msec) : 10=21.22%, 20=17.19%, 50=37.24%, 100=22.53%, 250=1.82% cpu : usr=0.10%, sys=5.20%, ctx=1519, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146210: Tue Aug 11 17:24:45 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(6256KiB/25206msec) clat (msec): min=4, max=127, avg=16.97, stdev=16.62 lat (msec): min=4, max=127, avg=16.97, stdev=16.62 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 13], | 70.00th=[ 17], 80.00th=[ 22], 90.00th=[ 35], 95.00th=[ 50], | 99.00th=[ 101], 99.50th=[ 115], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 63, max= 672, per=27.18%, avg=249.26, stdev=136.68, samples=50 iops : min= 3, max= 42, avg=15.04, stdev= 8.68, samples=50 write: IOPS=14, BW=239KiB/s (245kB/s)(6032KiB/25206msec); 0 zone resets clat (msec): min=18, max=121, avg=48.91, stdev=20.22 lat (msec): min=18, max=121, avg=48.92, stdev=20.22 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 36], 40.00th=[ 40], 50.00th=[ 45], 60.00th=[ 51], | 70.00th=[ 55], 80.00th=[ 62], 90.00th=[ 73], 95.00th=[ 96], | 99.00th=[ 116], 99.50th=[ 122], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 63, max= 444, per=24.79%, avg=238.96, stdev=95.66, samples=50 iops : min= 3, max= 27, avg=14.40, stdev= 6.06, samples=50 lat (msec) : 10=22.92%, 20=16.54%, 50=38.28%, 100=19.79%, 250=2.47% cpu : usr=0.10%, sys=5.39%, ctx=1500, 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=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=146212: Tue Aug 11 17:24:45 2026 read: IOPS=14, BW=233KiB/s (239kB/s)(6032KiB/25885msec) clat (msec): min=4, max=128, avg=17.89, stdev=17.64 lat (msec): min=4, max=128, avg=17.89, stdev=17.64 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 13], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 42], 95.00th=[ 55], | 99.00th=[ 96], 99.50th=[ 114], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 31, max= 480, per=25.21%, avg=231.22, stdev=103.57, samples=51 iops : min= 1, max= 30, avg=13.90, stdev= 6.59, samples=51 write: IOPS=15, BW=242KiB/s (247kB/s)(6256KiB/25885msec); 0 zone resets clat (msec): min=21, max=139, avg=48.87, stdev=18.62 lat (msec): min=21, max=139, avg=48.87, stdev=18.62 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 38], 40.00th=[ 42], 50.00th=[ 46], 60.00th=[ 50], | 70.00th=[ 54], 80.00th=[ 62], 90.00th=[ 72], 95.00th=[ 88], | 99.00th=[ 108], 99.50th=[ 138], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 95, max= 412, per=25.07%, avg=241.63, stdev=91.53, samples=51 iops : min= 5, max= 25, avg=14.55, stdev= 5.80, samples=51 lat (msec) : 10=21.09%, 20=15.76%, 50=40.10%, 100=21.35%, 250=1.69% cpu : usr=0.07%, sys=5.29%, ctx=1512, 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=917KiB/s (939kB/s), 220KiB/s-248KiB/s (225kB/s-254kB/s), io=23.4MiB (24.5MB), run=25206-26115msec WRITE: bw=965KiB/s (988kB/s), 239KiB/s-251KiB/s (245kB/s-257kB/s), io=24.6MiB (25.8MB), run=25206-26115msec 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=146224: Tue Aug 11 17:24:53 2026 read: IOPS=2, BW=2210KiB/s (2263kB/s)(7168KiB/3244msec) clat (usec): min=375, max=1204.2k, avg=215885.77, stdev=441843.15 lat (usec): min=375, max=1204.2k, avg=215887.06, stdev=441843.13 clat percentiles (usec): | 1.00th=[ 375], 5.00th=[ 375], 10.00th=[ 375], | 20.00th=[ 510], 30.00th=[ 519], 40.00th=[ 519], | 50.00th=[ 545], 60.00th=[ 131597], 70.00th=[ 131597], | 80.00th=[ 173016], 90.00th=[1199571], 95.00th=[1199571], | 99.00th=[1199571], 99.50th=[1199571], 99.90th=[1199571], | 99.95th=[1199571], 99.99th=[1199571] bw ( KiB/s): min= 1845, max= 4071, per=57.79%, avg=2936.50, stdev=1160.79, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1578KiB/s (1616kB/s)(5120KiB/3244msec); 0 zone resets clat (msec): min=166, max=616, avg=329.56, stdev=187.43 lat (msec): min=166, max=616, avg=329.61, stdev=187.42 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 3690, max= 4071, per=54.55%, avg=3880.50, stdev=269.41, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (usec) : 500=8.33%, 750=25.00% lat (msec) : 250=33.33%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=23.53%, ctx=658, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=146225: Tue Aug 11 17:24:53 2026 read: IOPS=0, BW=508KiB/s (520kB/s)(2048KiB/4030msec) clat (usec): min=564, max=1703.8k, avg=852207.26, stdev=1204404.63 lat (usec): min=566, max=1703.9k, avg=852209.37, stdev=1204405.43 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], | 20.00th=[ 562], 30.00th=[ 562], 40.00th=[ 562], | 50.00th=[ 562], 60.00th=[1702888], 70.00th=[1702888], | 80.00th=[1702888], 90.00th=[1702888], 95.00th=[1702888], | 99.00th=[1702888], 99.50th=[1702888], 99.90th=[1702888], | 99.95th=[1702888], 99.99th=[1702888] bw ( KiB/s): min= 1992, max= 2031, per=39.59%, avg=2011.50, stdev=27.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2541KiB/s (2602kB/s)(10.0MiB/4030msec); 0 zone resets clat (msec): min=100, max=519, avg=221.84, stdev=119.44 lat (msec): min=100, max=519, avg=221.91, stdev=119.44 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 110], | 30.00th=[ 117], 40.00th=[ 215], 50.00th=[ 218], 60.00th=[ 220], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 253], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1845, max= 5976, per=48.93%, avg=3480.75, stdev=1945.26, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=8.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=29.26%, ctx=497, 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=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=146226: Tue Aug 11 17:24:53 2026 read: IOPS=1, BW=1928KiB/s (1974kB/s)(6144KiB/3187msec) clat (usec): min=572, max=1048.2k, avg=288589.56, stdev=382313.62 lat (usec): min=573, max=1048.2k, avg=288591.14, stdev=382313.82 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], | 20.00th=[ 105382], 30.00th=[ 105382], 40.00th=[ 112722], | 50.00th=[ 112722], 60.00th=[ 223347], 70.00th=[ 242222], | 80.00th=[ 242222], 90.00th=[1044382], 95.00th=[1044382], | 99.00th=[1044382], 99.50th=[1044382], 99.90th=[1044382], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 1845, max= 4047, per=49.00%, avg=2489.50, stdev=1042.11, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1928KiB/s (1974kB/s)(6144KiB/3187msec); 0 zone resets clat (msec): min=79, max=411, avg=240.05, stdev=133.89 lat (msec): min=79, max=411, avg=240.23, stdev=133.96 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 133], | 30.00th=[ 133], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 326], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 2035, max= 4047, per=45.85%, avg=3261.67, stdev=1076.16, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=24.58%, ctx=264, 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=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=146227: Tue Aug 11 17:24:53 2026 read: IOPS=1, BW=1549KiB/s (1586kB/s)(5120KiB/3305msec) clat (usec): min=441, max=336226, avg=67678.56, stdev=150122.97 lat (usec): min=441, max=336228, avg=67679.62, stdev=150123.16 clat percentiles (usec): | 1.00th=[ 441], 5.00th=[ 441], 10.00th=[ 441], 20.00th=[ 441], | 30.00th=[ 494], 40.00th=[ 494], 50.00th=[ 570], 60.00th=[ 570], | 70.00th=[ 660], 80.00th=[ 660], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2169KiB/s (2221kB/s)(7168KiB/3305msec); 0 zone resets clat (msec): min=167, max=1149, avg=397.46, stdev=345.45 lat (msec): min=167, max=1149, avg=397.53, stdev=345.44 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 203], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 253], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 468], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1892, max= 3690, per=32.81%, avg=2334.20, stdev=760.27, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 250=25.00%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=23.70%, ctx=132, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=5082KiB/s (5204kB/s), 508KiB/s-2210KiB/s (520kB/s-2263kB/s), io=20.0MiB (20.0MB), run=3187-4030msec WRITE: bw=7115KiB/s (7285kB/s), 1578KiB/s-2541KiB/s (1616kB/s-2602kB/s), io=28.0MiB (29.4MB), run=3187-4030msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146228: Tue Aug 11 17:24:54 2026 read: IOPS=1, BW=1803KiB/s (1846kB/s)(7168KiB/3976msec) clat (msec): min=54, max=914, avg=291.30, stdev=300.63 lat (msec): min=54, max=914, avg=291.30, stdev=300.63 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 68], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 169], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 368], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1899, max= 3750, per=48.92%, avg=2435.00, stdev=879.39, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1288KiB/s (1319kB/s)(5120KiB/3976msec); 0 zone resets clat (msec): min=83, max=864, avg=355.23, stdev=319.11 lat (msec): min=83, max=864, avg=355.29, stdev=319.12 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 2039, max= 3976, per=43.16%, avg=3007.50, stdev=1369.67, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 100=25.00%, 250=33.33%, 500=25.00%, 1000=16.67% cpu : usr=0.03%, sys=9.76%, ctx=95, 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=146229: Tue Aug 11 17:24:54 2026 read: IOPS=0, BW=498KiB/s (510kB/s)(2048KiB/4114msec) clat (msec): min=61, max=1720, avg=891.09, stdev=1172.90 lat (msec): min=61, max=1720, avg=891.09, stdev=1172.90 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 62], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 1988, max= 2048, per=40.54%, avg=2018.00, stdev=42.43, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2489KiB/s (2549kB/s)(10.0MiB/4114msec); 0 zone resets clat (msec): min=53, max=376, avg=216.76, stdev=116.96 lat (msec): min=53, max=376, avg=216.84, stdev=116.95 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 85], | 30.00th=[ 87], 40.00th=[ 163], 50.00th=[ 224], 60.00th=[ 232], | 70.00th=[ 268], 80.00th=[ 334], 90.00th=[ 351], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1875, max= 8192, per=65.01%, avg=4530.50, stdev=2643.83, samples=4 iops : min= 1, max= 8, avg= 3.75, stdev= 2.99, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=10.75%, ctx=299, 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=146230: Tue Aug 11 17:24:54 2026 read: IOPS=1, BW=1547KiB/s (1584kB/s)(6144KiB/3971msec) clat (msec): min=68, max=302, avg=157.71, stdev=104.40 lat (msec): min=68, max=302, avg=157.71, stdev=104.40 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 92], 50.00th=[ 92], 60.00th=[ 138], | 70.00th=[ 275], 80.00th=[ 275], 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= 3750, max= 3976, per=77.60%, avg=3863.00, stdev=159.81, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1547KiB/s (1584kB/s)(6144KiB/3971msec); 0 zone resets clat (msec): min=105, max=1923, avg=499.16, stdev=712.22 lat (msec): min=105, max=1923, avg=499.24, stdev=712.23 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 224], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 1988, max= 3750, per=35.25%, avg=2456.25, stdev=862.90, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=8.09%, ctx=164, 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=146231: Tue Aug 11 17:24:54 2026 read: IOPS=1, BW=1256KiB/s (1286kB/s)(5120KiB/4078msec) clat (msec): min=48, max=403, avg=154.40, stdev=141.63 lat (msec): min=48, max=403, avg=154.40, stdev=141.63 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 49], 10.00th=[ 49], 20.00th=[ 49], | 30.00th=[ 91], 40.00th=[ 91], 50.00th=[ 113], 60.00th=[ 113], | 70.00th=[ 118], 80.00th=[ 118], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1875, max= 3976, per=58.77%, avg=2925.50, stdev=1485.63, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1758KiB/s (1800kB/s)(7168KiB/4078msec); 0 zone resets clat (msec): min=85, max=1633, avg=424.46, stdev=547.00 lat (msec): min=86, max=1633, avg=424.55, stdev=546.99 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 146], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 220], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 472], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 2039, max= 3750, per=37.49%, avg=2612.33, stdev=985.26, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 50=8.33%, 100=16.67%, 250=50.00%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=11.14%, ctx=147, 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=4978KiB/s (5098kB/s), 498KiB/s-1803KiB/s (510kB/s-1846kB/s), io=20.0MiB (20.0MB), run=3971-4114msec WRITE: bw=6969KiB/s (7137kB/s), 1288KiB/s-2489KiB/s (1319kB/s-2549kB/s), io=28.0MiB (29.4MB), run=3971-4114msec 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=146240: Tue Aug 11 17:25:02 2026 read: IOPS=1, BW=7748KiB/s (7934kB/s)(12.0MiB/1586msec) clat (msec): min=504, max=549, avg=520.11, stdev=25.22 lat (msec): min=504, max=549, avg=520.11, stdev=25.22 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 550], 80.00th=[ 550], 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= 5851, max= 8192, per=77.02%, avg=7021.50, stdev=1655.34, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=15.52%, ctx=60, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146242: Tue Aug 11 17:25:02 2026 read: IOPS=0, BW=2279KiB/s (2334kB/s)(4096KiB/1797msec) clat (nsec): min=616574k, max=616574k, avg=616573970.00, stdev= 0.00 lat (nsec): min=616576k, max=616576k, avg=616576267.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 5944, max= 5944, per=65.20%, avg=5944.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4559KiB/s (4668kB/s)(8192KiB/1797msec); 0 zone resets clat (msec): min=376, max=762, avg=569.50, stdev=272.66 lat (msec): min=376, max=762, avg=569.73, stdev=272.79 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 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=53.30%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=13.25%, ctx=39, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146244: Tue Aug 11 17:25:02 2026 write: IOPS=1, BW=5764KiB/s (5902kB/s)(12.0MiB/2132msec); 0 zone resets clat (msec): min=78, max=1351, avg=682.78, stdev=639.22 lat (msec): min=78, max=1351, avg=683.03, stdev=639.15 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8192, max= 8192, per=53.30%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=10.04%, ctx=62, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146245: Tue Aug 11 17:25:02 2026 write: IOPS=1, BW=6823KiB/s (6987kB/s)(12.0MiB/1801msec); 0 zone resets clat (msec): min=463, max=717, avg=573.02, stdev=130.74 lat (msec): min=463, max=717, avg=573.32, stdev=130.73 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 6050, max= 8192, per=46.33%, avg=7121.00, stdev=1514.62, 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=17.00%, ctx=275, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=9117KiB/s (9336kB/s), 2279KiB/s-7748KiB/s (2334kB/s-7934kB/s), io=16.0MiB (16.8MB), run=1586-1797msec WRITE: bw=15.0MiB/s (15.7MB/s), 4559KiB/s-6823KiB/s (4668kB/s-6987kB/s), io=32.0MiB (33.6MB), run=1797-2132msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146238: Tue Aug 11 17:25:02 2026 read: IOPS=1, BW=8132KiB/s (8328kB/s)(12.0MiB/1511msec) clat (msec): min=341, max=544, avg=476.68, stdev=117.00 lat (msec): min=341, max=544, avg=476.68, stdev=117.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 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= 6005, max= 8192, per=75.69%, avg=7098.50, stdev=1546.44, 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=51.13%, ctx=1803, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146239: Tue Aug 11 17:25:02 2026 read: IOPS=0, BW=2345KiB/s (2401kB/s)(4096KiB/1747msec) clat (nsec): min=483855k, max=483855k, avg=483854868.00, stdev= 0.00 lat (nsec): min=483857k, max=483857k, avg=483857199.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 8031, max= 8031, per=85.64%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4689KiB/s (4802kB/s)(8192KiB/1747msec); 0 zone resets clat (msec): min=380, max=858, avg=619.50, stdev=338.28 lat (msec): min=380, max=859, avg=619.79, stdev=338.35 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 860], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 8110, max= 8110, per=51.51%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.11%, sys=24.46%, ctx=954, 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=146241: Tue Aug 11 17:25:02 2026 write: IOPS=1, BW=5905KiB/s (6047kB/s)(12.0MiB/2081msec); 0 zone resets clat (msec): min=143, max=1140, avg=683.49, stdev=503.55 lat (msec): min=144, max=1141, avg=683.82, stdev=503.56 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8192, max= 8192, per=52.03%, 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%, 1000=33.33%, 2000=33.33% cpu : usr=0.10%, sys=9.95%, ctx=64, 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=146243: Tue Aug 11 17:25:02 2026 write: IOPS=1, BW=7144KiB/s (7316kB/s)(12.0MiB/1720msec); 0 zone resets clat (msec): min=161, max=1165, avg=566.14, stdev=529.70 lat (msec): min=162, max=1166, avg=566.48, stdev=529.65 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min=10879, max=10879, per=69.09%, avg=10879.00, 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%, 2000=33.33% cpu : usr=0.00%, sys=13.38%, 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 Run status group 0 (all jobs): READ: bw=9378KiB/s (9603kB/s), 2345KiB/s-8132KiB/s (2401kB/s-8328kB/s), io=16.0MiB (16.8MB), run=1511-1747msec WRITE: bw=15.4MiB/s (16.1MB/s), 4689KiB/s-7144KiB/s (4802kB/s-7316kB/s), io=32.0MiB (33.6MB), run=1720-2081msec