== sanity test 398b: DIO and buffer IO race ============== 06:00:19 (1787738419) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.58722 s, 9.0 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=145008: Wed Aug 26 06:02:56 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5992KiB/134276msec) clat (usec): min=32, max=664070, avg=44003.48, stdev=37529.72 lat (usec): min=32, max=664071, avg=44008.54, stdev=37529.92 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 660], 20.00th=[ 20055], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 63701], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[168821], 99.50th=[196084], 99.90th=[316670], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 125, per=26.09%, avg=45.13, stdev=21.55, samples=258 iops : min= 1, max= 31, avg=10.63, stdev= 5.42, samples=258 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(6296KiB/134276msec); 0 zone resets clat (usec): min=920, max=567179, avg=43294.09, stdev=49113.72 lat (usec): min=921, max=567181, avg=43299.47, stdev=49115.84 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1287], 10.00th=[ 1795], 20.00th=[ 4359], | 30.00th=[ 8586], 40.00th=[ 16909], 50.00th=[ 28443], 60.00th=[ 40633], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[107480], 95.00th=[139461], | 99.00th=[206570], 99.50th=[242222], 99.90th=[341836], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 117, per=25.71%, avg=46.54, stdev=22.35, samples=263 iops : min= 1, max= 29, avg=11.00, stdev= 5.64, samples=263 lat (usec) : 50=0.42%, 100=3.55%, 250=0.78%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=5.57%, 4=4.23%, 10=7.03%, 20=9.64%, 50=35.32% lat (msec) : 100=24.80%, 250=8.01%, 500=0.26%, 750=0.07% cpu : usr=0.08%, sys=5.16%, ctx=6461, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145009: Wed Aug 26 06:02:56 2026 read: IOPS=10, BW=43.0KiB/s (44.0kB/s)(5940KiB/138133msec) clat (usec): min=29, max=608166, avg=44276.13, stdev=36007.09 lat (usec): min=30, max=608168, avg=44278.76, stdev=36007.49 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 553], 20.00th=[ 20579], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[158335], 99.50th=[189793], 99.90th=[270533], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 6, max= 117, per=24.84%, avg=42.97, stdev=19.31, samples=269 iops : min= 1, max= 29, avg=10.09, stdev= 4.89, samples=269 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(6348KiB/138133msec); 0 zone resets clat (usec): min=949, max=538139, avg=45477.90, stdev=50130.39 lat (usec): min=950, max=538141, avg=45483.37, stdev=50132.41 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1352], 10.00th=[ 1958], 20.00th=[ 4621], | 30.00th=[ 9765], 40.00th=[ 19792], 50.00th=[ 31851], 60.00th=[ 43254], | 70.00th=[ 57410], 80.00th=[ 78119], 90.00th=[111674], 95.00th=[147850], | 99.00th=[212861], 99.50th=[258999], 99.90th=[417334], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 111, per=25.22%, avg=45.65, stdev=21.45, samples=270 iops : min= 1, max= 27, avg=10.77, stdev= 5.42, samples=270 lat (usec) : 50=0.46%, 100=3.65%, 250=0.62%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.21%, 4=4.30%, 10=6.54%, 20=8.95%, 50=36.30% lat (msec) : 100=24.41%, 250=8.98%, 500=0.29%, 750=0.07% cpu : usr=0.07%, sys=5.08%, ctx=6591, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145010: Wed Aug 26 06:02:56 2026 read: IOPS=10, BW=43.8KiB/s (44.8kB/s)(6028KiB/137726msec) clat (usec): min=34, max=326372, avg=43853.59, stdev=34382.86 lat (usec): min=34, max=326373, avg=43855.17, stdev=34383.77 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 133], 20.00th=[ 19530], | 30.00th=[ 25822], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 54264], 80.00th=[ 65274], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[156238], 99.50th=[185598], 99.90th=[312476], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 95, per=25.28%, avg=43.74, stdev=19.60, samples=268 iops : min= 1, max= 23, avg=10.29, stdev= 4.93, samples=268 write: IOPS=11, BW=45.5KiB/s (46.5kB/s)(6260KiB/137726msec); 0 zone resets clat (usec): min=950, max=715480, avg=45623.65, stdev=53347.06 lat (usec): min=950, max=715483, avg=45625.81, stdev=53347.30 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1303], 10.00th=[ 1663], 20.00th=[ 4359], | 30.00th=[ 8455], 40.00th=[ 19268], 50.00th=[ 32900], 60.00th=[ 45351], | 70.00th=[ 58459], 80.00th=[ 77071], 90.00th=[104334], 95.00th=[135267], | 99.00th=[210764], 99.50th=[270533], 99.90th=[549454], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 133, per=25.12%, avg=45.46, stdev=21.81, samples=268 iops : min= 1, max= 33, avg=10.72, stdev= 5.50, samples=268 lat (usec) : 50=0.33%, 100=3.97%, 250=0.94%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.15%, 4=3.55%, 10=6.74%, 20=8.98%, 50=34.08% lat (msec) : 100=26.30%, 250=8.30%, 500=0.29%, 750=0.10% cpu : usr=0.07%, sys=5.16%, ctx=6585, 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=145011: Wed Aug 26 06:02:56 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(6052KiB/138062msec) clat (usec): min=32, max=494019, avg=43340.78, stdev=36797.65 lat (usec): min=32, max=494020, avg=43343.73, stdev=36797.43 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 163], 20.00th=[ 19530], | 30.00th=[ 25297], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 41157], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[164627], 99.50th=[204473], 99.90th=[400557], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 7, max= 110, per=25.52%, avg=44.16, stdev=21.63, samples=267 iops : min= 1, max= 27, avg=10.39, stdev= 5.47, samples=267 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6236KiB/138062msec); 0 zone resets clat (usec): min=1035, max=780728, avg=46370.29, stdev=51935.89 lat (usec): min=1035, max=780730, avg=46381.42, stdev=51932.59 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 2311], 20.00th=[ 5145], | 30.00th=[ 9896], 40.00th=[ 20055], 50.00th=[ 33162], 60.00th=[ 44827], | 70.00th=[ 60031], 80.00th=[ 79168], 90.00th=[109577], 95.00th=[141558], | 99.00th=[206570], 99.50th=[256902], 99.90th=[530580], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=44.99, stdev=20.04, samples=270 iops : min= 1, max= 31, avg=10.60, stdev= 5.06, samples=270 lat (usec) : 50=0.42%, 100=3.74%, 250=1.04%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=4.43%, 4=4.04%, 10=7.19%, 20=9.64%, 50=35.38% lat (msec) : 100=24.54%, 250=8.85%, 500=0.36%, 750=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.13%, ctx=6590, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=174KiB/s (178kB/s), 43.0KiB/s-44.6KiB/s (44.0kB/s-45.7kB/s), io=23.4MiB (24.6MB), run=134276-138133msec WRITE: bw=182KiB/s (186kB/s), 45.2KiB/s-46.9KiB/s (46.3kB/s-48.0kB/s), io=24.6MiB (25.7MB), run=134276-138133msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145003: Wed Aug 26 06:05:28 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(5992KiB/290941msec) clat (msec): min=6, max=763, avg=38.83, stdev=41.76 lat (msec): min=6, max=763, avg=38.84, stdev=41.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 115], | 99.00th=[ 180], 99.50th=[ 247], 99.90th=[ 506], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 95, per=28.63%, avg=23.48, stdev=16.11, samples=492 iops : min= 1, max= 23, avg= 5.22, stdev= 4.06, samples=492 write: IOPS=5, BW=21.6KiB/s (22.2kB/s)(6296KiB/290941msec); 0 zone resets clat (msec): min=39, max=648, avg=147.63, stdev=76.92 lat (msec): min=39, max=648, avg=147.64, stdev=76.93 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 194], 90.00th=[ 247], 95.00th=[ 292], | 99.00th=[ 430], 99.50th=[ 518], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 55, per=24.90%, avg=21.41, stdev=10.15, samples=564 iops : min= 1, max= 13, avg= 4.70, stdev= 2.57, samples=564 lat (msec) : 10=2.67%, 20=14.75%, 50=21.16%, 100=21.94%, 250=34.41% lat (msec) : 500=4.69%, 750=0.36%, 1000=0.03% cpu : usr=0.05%, sys=1.23%, ctx=5428, 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=145004: Wed Aug 26 06:05:28 2026 read: IOPS=5, BW=20.5KiB/s (20.0kB/s)(5940KiB/289667msec) clat (msec): min=5, max=710, avg=38.97, stdev=41.13 lat (msec): min=5, max=710, avg=38.98, stdev=41.13 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 52], 90.00th=[ 84], 95.00th=[ 110], | 99.00th=[ 192], 99.50th=[ 257], 99.90th=[ 384], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 95, per=28.44%, avg=23.32, stdev=15.99, samples=490 iops : min= 1, max= 23, avg= 5.19, stdev= 4.03, samples=490 write: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6348KiB/289667msec); 0 zone resets clat (msec): min=42, max=614, avg=145.80, stdev=73.97 lat (msec): min=42, max=614, avg=145.80, stdev=73.97 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 243], 95.00th=[ 288], | 99.00th=[ 409], 99.50th=[ 489], 99.90th=[ 584], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 55, per=25.30%, avg=21.75, stdev=10.24, samples=559 iops : min= 1, max= 13, avg= 4.79, stdev= 2.60, samples=559 lat (msec) : 10=2.12%, 20=14.39%, 50=22.01%, 100=21.55%, 250=35.19% lat (msec) : 500=4.52%, 750=0.23% cpu : usr=0.05%, sys=1.17%, ctx=5313, 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= 0: pid=145005: Wed Aug 26 06:05:28 2026 read: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6028KiB/288396msec) clat (msec): min=5, max=508, avg=40.15, stdev=37.73 lat (msec): min=5, max=508, avg=40.15, stdev=37.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 55], 90.00th=[ 89], 95.00th=[ 112], | 99.00th=[ 180], 99.50th=[ 205], 99.90th=[ 300], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 88, per=28.15%, avg=23.08, stdev=15.76, samples=503 iops : min= 1, max= 22, avg= 5.12, stdev= 3.97, samples=503 write: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6260KiB/288396msec); 0 zone resets clat (msec): min=42, max=816, avg=145.37, stdev=75.05 lat (msec): min=42, max=816, avg=145.37, stdev=75.05 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 243], 95.00th=[ 288], | 99.00th=[ 405], 99.50th=[ 460], 99.90th=[ 651], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 48, per=24.99%, avg=21.49, stdev=10.30, samples=559 iops : min= 1, max= 12, avg= 4.72, stdev= 2.62, samples=559 lat (msec) : 10=2.12%, 20=14.32%, 50=21.32%, 100=23.05%, 250=34.51% lat (msec) : 500=4.46%, 750=0.20%, 1000=0.03% cpu : usr=0.05%, sys=1.21%, ctx=5386, 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=145006: Wed Aug 26 06:05:28 2026 read: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6052KiB/289217msec) clat (msec): min=6, max=366, avg=39.39, stdev=37.63 lat (msec): min=6, max=366, avg=39.39, stdev=37.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 83], 95.00th=[ 110], | 99.00th=[ 203], 99.50th=[ 239], 99.90th=[ 342], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 119, per=29.27%, avg=24.00, stdev=16.33, samples=486 iops : min= 1, max= 29, avg= 5.36, stdev= 4.12, samples=486 write: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6236KiB/289217msec); 0 zone resets clat (msec): min=39, max=878, avg=147.04, stdev=77.51 lat (msec): min=39, max=878, avg=147.05, stdev=77.51 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 194], 90.00th=[ 243], 95.00th=[ 296], | 99.00th=[ 409], 99.50th=[ 493], 99.90th=[ 634], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 55, per=24.84%, avg=21.36, stdev=10.12, samples=559 iops : min= 1, max= 13, avg= 4.69, stdev= 2.58, samples=559 lat (msec) : 10=2.44%, 20=14.16%, 50=21.81%, 100=22.62%, 250=34.47% lat (msec) : 500=4.30%, 750=0.16%, 1000=0.03% cpu : usr=0.05%, sys=1.21%, ctx=5415, 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=82.5KiB/s (84.5kB/s), 20.5KiB/s-20.9KiB/s (20.0kB/s-21.4kB/s), io=23.4MiB (24.6MB), run=288396-290941msec WRITE: bw=86.4KiB/s (88.5kB/s), 21.6KiB/s-21.9KiB/s (22.1kB/s-22.4kB/s), io=24.6MiB (25.7MB), run=288396-290941msec 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=145085: Wed Aug 26 06:06:07 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(5920KiB/29181msec) clat (usec): min=34, max=214003, avg=38317.79, stdev=34804.97 lat (usec): min=34, max=214005, avg=38319.26, stdev=34805.00 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 71], 20.00th=[ 97], | 30.00th=[ 17433], 40.00th=[ 28443], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[198181], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 505, per=24.64%, avg=202.05, stdev=79.33, samples=57 iops : min= 1, max= 31, avg=11.89, stdev= 5.09, samples=57 write: IOPS=13, BW=218KiB/s (223kB/s)(6368KiB/29181msec); 0 zone resets clat (usec): min=1425, max=187813, avg=37460.89, stdev=35783.31 lat (usec): min=1426, max=187816, avg=37468.54, stdev=35779.11 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2212], 10.00th=[ 3752], 20.00th=[ 5735], | 30.00th=[ 10552], 40.00th=[ 16909], 50.00th=[ 24773], 60.00th=[ 38536], | 70.00th=[ 49021], 80.00th=[ 65799], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[162530], 99.50th=[166724], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 32, max= 600, per=25.39%, avg=219.12, stdev=98.27, samples=57 iops : min= 2, max= 37, avg=12.96, stdev= 6.19, samples=57 lat (usec) : 50=1.43%, 100=8.72%, 250=1.30%, 500=0.26%, 750=0.39% lat (msec) : 2=2.21%, 4=4.56%, 10=9.11%, 20=8.98%, 50=33.59% lat (msec) : 100=23.70%, 250=5.73% cpu : usr=0.11%, sys=6.44%, ctx=1535, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145086: Wed Aug 26 06:06:07 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(5744KiB/28532msec) clat (usec): min=40, max=247212, avg=40414.57, stdev=33871.03 lat (usec): min=40, max=247213, avg=40418.12, stdev=33872.70 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 66], 10.00th=[ 76], 20.00th=[ 141], | 30.00th=[ 22414], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 53216], 80.00th=[ 62653], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[164627], 99.50th=[179307], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 30, max= 384, per=24.42%, avg=200.25, stdev=79.14, samples=56 iops : min= 1, max= 24, avg=11.77, stdev= 5.03, samples=56 write: IOPS=14, BW=229KiB/s (235kB/s)(6544KiB/28532msec); 0 zone resets clat (usec): min=1563, max=247888, avg=34149.10, stdev=37302.43 lat (usec): min=1565, max=247890, avg=34153.85, stdev=37302.11 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2057], 10.00th=[ 3425], 20.00th=[ 5669], | 30.00th=[ 8291], 40.00th=[ 13435], 50.00th=[ 19530], 60.00th=[ 31327], | 70.00th=[ 43254], 80.00th=[ 59507], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[179307], 99.50th=[204473], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 63, max= 413, per=26.53%, avg=228.95, stdev=94.37, samples=56 iops : min= 3, max= 25, avg=13.59, stdev= 5.94, samples=56 lat (usec) : 50=0.91%, 100=7.94%, 250=1.43%, 500=0.13%, 750=0.13% lat (msec) : 2=2.47%, 4=4.69%, 10=11.20%, 20=10.81%, 50=31.64% lat (msec) : 100=24.09%, 250=4.56% cpu : usr=0.11%, sys=6.43%, ctx=1512, 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=145087: Wed Aug 26 06:06:07 2026 read: IOPS=13, BW=218KiB/s (223kB/s)(6256KiB/28682msec) clat (usec): min=43, max=210008, avg=37735.43, stdev=31654.41 lat (usec): min=43, max=210009, avg=37750.35, stdev=31644.71 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 67], 10.00th=[ 82], 20.00th=[ 112], | 30.00th=[ 21365], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 50594], 80.00th=[ 60556], 90.00th=[ 77071], 95.00th=[ 88605], | 99.00th=[143655], 99.50th=[187696], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 62, max= 383, per=27.32%, avg=224.02, stdev=86.64, samples=55 iops : min= 3, max= 23, avg=13.27, stdev= 5.44, samples=55 write: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28682msec); 0 zone resets clat (usec): min=1447, max=376856, avg=36768.41, stdev=43550.12 lat (usec): min=1449, max=376858, avg=36771.91, stdev=43550.27 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2540], 10.00th=[ 4080], 20.00th=[ 6194], | 30.00th=[ 8717], 40.00th=[ 14877], 50.00th=[ 23462], 60.00th=[ 33424], | 70.00th=[ 43779], 80.00th=[ 57934], 90.00th=[ 84411], 95.00th=[110625], | 99.00th=[225444], 99.50th=[320865], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 63, max= 347, per=24.24%, avg=209.16, stdev=74.80, samples=56 iops : min= 3, max= 21, avg=12.34, stdev= 4.75, samples=56 lat (usec) : 50=0.91%, 100=8.20%, 250=2.60%, 500=0.52%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=1.69%, 4=3.12%, 10=11.33%, 20=8.33%, 50=34.90% lat (msec) : 100=23.70%, 250=3.91%, 500=0.39% cpu : usr=0.09%, sys=6.44%, ctx=1563, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145089: Wed Aug 26 06:06:07 2026 read: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27627msec) clat (usec): min=42, max=196627, avg=39646.30, stdev=31930.27 lat (usec): min=42, max=196628, avg=39648.61, stdev=31930.34 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 65], 10.00th=[ 77], 20.00th=[ 130], | 30.00th=[ 23200], 40.00th=[ 31589], 50.00th=[ 38011], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 63701], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[129500], 99.50th=[170918], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 95, max= 382, per=26.59%, avg=218.04, stdev=73.49, samples=54 iops : min= 5, max= 23, avg=12.89, stdev= 4.63, samples=54 write: IOPS=14, BW=226KiB/s (232kB/s)(6256KiB/27627msec); 0 zone resets clat (usec): min=1393, max=244484, avg=32327.50, stdev=35522.92 lat (usec): min=1396, max=244488, avg=32330.36, stdev=35522.90 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1991], 10.00th=[ 3359], 20.00th=[ 5669], | 30.00th=[ 8094], 40.00th=[ 11731], 50.00th=[ 16450], 60.00th=[ 27657], | 70.00th=[ 42730], 80.00th=[ 56886], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[152044], 99.50th=[244319], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 62, max= 448, per=26.51%, avg=228.81, stdev=78.33, samples=54 iops : min= 3, max= 28, avg=13.56, stdev= 4.95, samples=54 lat (usec) : 50=0.91%, 100=8.20%, 250=1.56%, 500=0.65%, 750=0.26% lat (msec) : 2=2.73%, 4=4.69%, 10=11.33%, 20=11.33%, 50=28.52% lat (msec) : 100=25.13%, 250=4.69% cpu : usr=0.10%, sys=6.76%, ctx=1583, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=821KiB/s (841kB/s), 201KiB/s-218KiB/s (206kB/s-224kB/s), io=23.4MiB (24.5MB), run=27627-29181msec WRITE: bw=864KiB/s (884kB/s), 210KiB/s-229KiB/s (215kB/s-235kB/s), io=24.6MiB (25.8MB), run=27627-29181msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145080: Wed Aug 26 06:06:46 2026 read: IOPS=5, BW=88.8KiB/s (90.0kB/s)(5920KiB/66648msec) clat (msec): min=6, max=279, avg=38.93, stdev=37.14 lat (msec): min=6, max=279, avg=38.94, stdev=37.14 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 53], 90.00th=[ 80], 95.00th=[ 110], | 99.00th=[ 222], 99.50th=[ 236], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 285, per=26.83%, avg=94.19, stdev=56.19, samples=122 iops : min= 1, max= 17, avg= 5.12, stdev= 3.54, samples=122 write: IOPS=5, BW=95.5KiB/s (97.8kB/s)(6368KiB/66648msec); 0 zone resets clat (msec): min=46, max=485, avg=130.78, stdev=55.79 lat (msec): min=46, max=485, avg=130.78, stdev=55.79 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 169], 90.00th=[ 211], 95.00th=[ 232], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 22, max= 192, per=25.97%, avg=95.83, stdev=39.95, samples=130 iops : min= 1, max= 12, avg= 5.22, stdev= 2.59, samples=130 lat (msec) : 10=0.39%, 20=14.58%, 50=23.31%, 100=23.83%, 250=35.94% lat (msec) : 500=1.95% cpu : usr=0.06%, sys=1.41%, ctx=1265, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145081: Wed Aug 26 06:06:46 2026 read: IOPS=5, BW=84.2KiB/s (86.2kB/s)(5744KiB/68228msec) clat (msec): min=8, max=236, avg=36.82, stdev=32.72 lat (msec): min=8, max=236, avg=36.82, stdev=32.72 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 77], 95.00th=[ 116], | 99.00th=[ 161], 99.50th=[ 184], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 22, max= 352, per=27.91%, avg=97.95, stdev=60.13, samples=114 iops : min= 1, max= 22, avg= 5.37, stdev= 3.82, samples=114 write: IOPS=5, BW=95.9KiB/s (98.2kB/s)(6544KiB/68228msec); 0 zone resets clat (msec): min=38, max=457, avg=133.99, stdev=62.00 lat (msec): min=38, max=457, avg=133.99, stdev=62.00 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 99], 40.00th=[ 110], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 228], 95.00th=[ 257], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 352, per=25.87%, avg=95.44, stdev=43.91, samples=133 iops : min= 1, max= 22, avg= 5.20, stdev= 2.84, samples=133 lat (msec) : 10=1.04%, 20=14.32%, 50=24.22%, 100=21.22%, 250=36.46% lat (msec) : 500=2.73% cpu : usr=0.05%, sys=1.39%, ctx=1296, 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=145082: Wed Aug 26 06:06:46 2026 read: IOPS=5, BW=94.7KiB/s (96.9kB/s)(6256KiB/66080msec) clat (msec): min=7, max=330, avg=36.98, stdev=38.22 lat (msec): min=7, max=330, avg=36.98, stdev=38.22 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 75], 95.00th=[ 104], | 99.00th=[ 253], 99.50th=[ 271], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 288, per=30.16%, avg=105.86, stdev=73.70, samples=117 iops : min= 1, max= 18, avg= 5.85, stdev= 4.68, samples=117 write: IOPS=5, BW=91.3KiB/s (93.5kB/s)(6032KiB/66080msec); 0 zone resets clat (msec): min=46, max=400, avg=136.40, stdev=60.87 lat (msec): min=46, max=400, avg=136.42, stdev=60.88 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 67], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 122], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 226], 95.00th=[ 255], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 160, per=24.81%, avg=91.55, stdev=38.66, samples=129 iops : min= 1, max= 10, avg= 4.95, stdev= 2.50, samples=129 lat (msec) : 10=1.43%, 20=16.02%, 50=24.74%, 100=20.70%, 250=34.11% lat (msec) : 500=2.99% cpu : usr=0.04%, sys=1.37%, ctx=1315, 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=145083: Wed Aug 26 06:06:46 2026 read: IOPS=5, BW=89.8KiB/s (91.0kB/s)(6032KiB/67153msec) clat (msec): min=7, max=287, avg=36.63, stdev=36.06 lat (msec): min=7, max=287, avg=36.63, stdev=36.06 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 72], 95.00th=[ 107], | 99.00th=[ 199], 99.50th=[ 266], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 318, per=30.40%, avg=106.69, stdev=63.87, samples=110 iops : min= 1, max= 19, avg= 5.91, stdev= 4.02, samples=110 write: IOPS=5, BW=93.2KiB/s (95.4kB/s)(6256KiB/67153msec); 0 zone resets clat (msec): min=48, max=416, avg=136.19, stdev=63.44 lat (msec): min=48, max=416, avg=136.20, stdev=63.44 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 88], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 132], | 70.00th=[ 153], 80.00th=[ 182], 90.00th=[ 218], 95.00th=[ 268], | 99.00th=[ 347], 99.50th=[ 409], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 30, max= 160, per=25.27%, avg=93.24, stdev=39.91, samples=131 iops : min= 1, max= 10, avg= 5.06, stdev= 2.56, samples=131 lat (msec) : 10=1.43%, 20=16.28%, 50=22.53%, 100=22.92%, 250=33.46% lat (msec) : 500=3.39% cpu : usr=0.05%, sys=1.30%, ctx=1321, 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=351KiB/s (359kB/s), 84.2KiB/s-94.7KiB/s (86.2kB/s-96.9kB/s), io=23.4MiB (24.5MB), run=66080-68228msec WRITE: bw=369KiB/s (378kB/s), 91.3KiB/s-95.9KiB/s (93.5kB/s-98.2kB/s), io=24.6MiB (25.8MB), run=66080-68228msec 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=145108: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1805KiB/s (1848kB/s)(7168KiB/3972msec) clat (msec): min=95, max=530, avg=279.09, stdev=167.68 lat (msec): min=95, max=530, avg=279.09, stdev=167.68 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 111], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 330], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 405], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1882, max= 4551, per=66.24%, avg=2601.75, stdev=1301.14, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1289KiB/s (1320kB/s)(5120KiB/3972msec); 0 zone resets clat (msec): min=295, max=700, avg=395.20, stdev=173.54 lat (msec): min=295, max=700, avg=395.32, stdev=173.52 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 376], 80.00th=[ 376], 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= 2027, max= 4096, per=46.37%, avg=2550.25, stdev=1030.52, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=16.67%, 500=58.33%, 750=16.67% cpu : usr=0.05%, sys=4.68%, ctx=86, 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=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=145109: Wed Aug 26 06:07:01 2026 read: IOPS=0, BW=393KiB/s (402kB/s)(2048KiB/5213msec) clat (msec): min=144, max=729, avg=437.35, stdev=413.47 lat (msec): min=144, max=729, avg=437.35, stdev=413.47 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1481, max= 2039, per=44.81%, avg=1760.00, stdev=394.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1964KiB/s (2011kB/s)(10.0MiB/5213msec); 0 zone resets clat (msec): min=230, max=859, avg=429.11, stdev=186.00 lat (msec): min=230, max=859, avg=429.25, stdev=186.04 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 239], | 30.00th=[ 279], 40.00th=[ 384], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 460], 80.00th=[ 464], 90.00th=[ 575], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1481, max= 4096, per=45.56%, avg=2505.71, stdev=1094.12, samples=7 iops : min= 1, max= 4, avg= 1.86, stdev= 1.21, samples=7 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.28%, ctx=76, 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=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=145110: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1274KiB/s (1304kB/s)(6144KiB/4823msec) clat (msec): min=96, max=924, avg=398.14, stdev=305.21 lat (msec): min=96, max=924, avg=398.15, stdev=305.21 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 393], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 2035, max= 3611, per=61.97%, avg=2434.25, stdev=784.52, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1274KiB/s (1304kB/s)(6144KiB/4823msec); 0 zone resets clat (msec): min=213, max=788, avg=397.37, stdev=248.09 lat (msec): min=213, max=788, avg=397.57, stdev=248.02 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 279], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 2031, max= 4087, per=55.64%, avg=3060.00, stdev=1185.88, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.88%, ctx=64, 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=145111: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1091KiB/s (1117kB/s)(5120KiB/4694msec) clat (msec): min=71, max=1037, avg=395.43, stdev=381.17 lat (msec): min=71, max=1037, avg=395.43, stdev=381.17 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 2039, max= 3871, per=67.46%, avg=2649.67, stdev=1057.71, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1527KiB/s (1564kB/s)(7168KiB/4694msec); 0 zone resets clat (msec): min=214, max=807, avg=379.24, stdev=194.99 lat (msec): min=214, max=807, avg=379.63, stdev=194.97 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 288], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 326], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 363], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2035, max= 3764, per=53.81%, avg=2959.33, stdev=870.69, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=16.67%, 500=58.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.32%, ctx=123, 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=3929KiB/s (4023kB/s), 393KiB/s-1805KiB/s (402kB/s-1848kB/s), io=20.0MiB (20.0MB), run=3972-5213msec WRITE: bw=5500KiB/s (5632kB/s), 1274KiB/s-1964KiB/s (1304kB/s-2011kB/s), io=28.0MiB (29.4MB), run=3972-5213msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145113: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1837KiB/s (1881kB/s)(7168KiB/3902msec) clat (usec): min=571, max=347860, avg=158159.53, stdev=123788.84 lat (usec): min=572, max=348539, avg=158257.65, stdev=123962.06 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 734], | 30.00th=[162530], 40.00th=[162530], 50.00th=[177210], 60.00th=[189793], | 70.00th=[189793], 80.00th=[227541], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 2007, max= 4079, per=71.69%, avg=3005.25, stdev=1143.30, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1312KiB/s (1344kB/s)(5120KiB/3902msec); 0 zone resets clat (msec): min=207, max=889, avg=558.49, stdev=294.81 lat (msec): min=207, max=890, avg=558.62, stdev=294.87 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1882, max= 4015, per=44.91%, avg=2636.00, stdev=1195.99, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=41.67%, 500=16.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=15.12%, ctx=308, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145114: Wed Aug 26 06:07:01 2026 read: IOPS=0, BW=419KiB/s (429kB/s)(2048KiB/4885msec) clat (msec): min=162, max=490, avg=326.31, stdev=232.11 lat (msec): min=162, max=490, avg=326.31, stdev=232.11 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1514, max= 2015, per=42.09%, avg=1764.50, stdev=354.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2096KiB/s (2147kB/s)(10.0MiB/4885msec); 0 zone resets clat (msec): min=129, max=891, avg=419.90, stdev=231.44 lat (msec): min=129, max=891, avg=422.78, stdev=233.22 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 203], | 30.00th=[ 249], 40.00th=[ 321], 50.00th=[ 334], 60.00th=[ 372], | 70.00th=[ 510], 80.00th=[ 542], 90.00th=[ 659], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 2011, max= 6131, per=51.11%, avg=2999.50, stdev=1681.52, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=14.33%, ctx=230, 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=145115: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1796KiB/s (1840kB/s)(6144KiB/3420msec) clat (usec): min=481, max=471767, avg=195968.72, stdev=206778.06 lat (usec): min=483, max=471767, avg=195970.22, stdev=206777.73 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[125305], 50.00th=[125305], 60.00th=[149947], | 70.00th=[429917], 80.00th=[429917], 90.00th=[471860], 95.00th=[471860], | 99.00th=[471860], 99.50th=[471860], 99.90th=[471860], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 1875, max= 4031, per=59.35%, avg=2488.00, stdev=1031.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1796KiB/s (1840kB/s)(6144KiB/3420msec); 0 zone resets clat (msec): min=151, max=560, avg=373.67, stdev=173.00 lat (msec): min=151, max=560, avg=373.75, stdev=173.01 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 456], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1875, max= 4031, per=45.47%, avg=2668.50, stdev=983.67, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=15.59%, ctx=182, 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=145116: Wed Aug 26 06:07:01 2026 read: IOPS=1, BW=1080KiB/s (1106kB/s)(5120KiB/4740msec) clat (usec): min=529, max=350449, avg=235011.32, stdev=144104.89 lat (usec): min=530, max=350451, avg=235012.65, stdev=144104.92 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[204473], 40.00th=[204473], 50.00th=[274727], 60.00th=[274727], | 70.00th=[346031], 80.00th=[346031], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 2015, max= 6047, per=96.16%, avg=4031.00, stdev=2851.05, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1512KiB/s (1549kB/s)(7168KiB/4740msec); 0 zone resets clat (msec): min=221, max=964, avg=508.48, stdev=275.36 lat (msec): min=221, max=964, avg=508.98, stdev=275.17 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 271], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 372], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 709], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1875, max= 4087, per=41.01%, avg=2407.00, stdev=941.41, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=12.85%, ctx=225, 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=4192KiB/s (4293kB/s), 419KiB/s-1837KiB/s (429kB/s-1881kB/s), io=20.0MiB (20.0MB), run=3420-4885msec WRITE: bw=5869KiB/s (6010kB/s), 1312KiB/s-2096KiB/s (1344kB/s-2147kB/s), io=28.0MiB (29.4MB), run=3420-4885msec 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=145125: Wed Aug 26 06:07:15 2026 read: IOPS=0, BW=4031KiB/s (4128kB/s)(12.0MiB/3048msec) clat (msec): min=918, max=1037, avg=984.69, stdev=60.84 lat (msec): min=918, max=1037, avg=984.69, stdev=60.84 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.87%, ctx=48, 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=145127: Wed Aug 26 06:07:15 2026 read: IOPS=0, BW=1219KiB/s (1249kB/s)(4096KiB/3359msec) clat (nsec): min=1246.6M, max=1246.6M, avg=1246579420.00, stdev= 0.00 lat (nsec): min=1246.6M, max=1246.6M, avg=1246581922.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2439KiB/s (2497kB/s)(8192KiB/3359msec); 0 zone resets clat (msec): min=410, max=1392, avg=901.71, stdev=694.12 lat (msec): min=412, max=1392, avg=902.46, stdev=693.59 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8159, max= 8159, per=96.93%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.30%, ctx=61, 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=145129: Wed Aug 26 06:07:15 2026 write: IOPS=0, BW=3156KiB/s (3232kB/s)(12.0MiB/3893msec); 0 zone resets clat (msec): min=349, max=1654, avg=1218.83, stdev=753.22 lat (msec): min=349, max=1655, avg=1219.27, stdev=753.29 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8159, max= 8192, per=97.13%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.16%, ctx=51, 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=145131: Wed Aug 26 06:07:15 2026 write: IOPS=1, BW=4119KiB/s (4218kB/s)(12.0MiB/2983msec); 0 zone resets clat (msec): min=377, max=1842, avg=902.97, stdev=815.42 lat (msec): min=378, max=1843, avg=903.65, stdev=815.49 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8000, max= 8192, per=96.19%, avg=8096.00, stdev=135.76, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.16%, ctx=95, 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=4878KiB/s (4995kB/s), 1219KiB/s-4031KiB/s (1249kB/s-4128kB/s), io=16.0MiB (16.8MB), run=3048-3359msec WRITE: bw=8417KiB/s (8619kB/s), 2439KiB/s-4119KiB/s (2497kB/s-4218kB/s), io=32.0MiB (33.6MB), run=2983-3893msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145126: Wed Aug 26 06:07:15 2026 read: IOPS=1, BW=4103KiB/s (4201kB/s)(12.0MiB/2995msec) clat (msec): min=878, max=1048, avg=947.56, stdev=89.21 lat (msec): min=878, max=1048, avg=947.56, stdev=89.21 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.26%, ctx=345, 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=145128: Wed Aug 26 06:07:15 2026 read: IOPS=0, BW=1452KiB/s (1487kB/s)(4096KiB/2821msec) clat (nsec): min=885998k, max=885998k, avg=885997640.00, stdev= 0.00 lat (nsec): min=886001k, max=886001k, avg=886001096.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2904KiB/s (2974kB/s)(8192KiB/2821msec); 0 zone resets clat (msec): min=414, max=1418, avg=916.53, stdev=709.41 lat (msec): min=415, max=1418, avg=917.12, stdev=709.34 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 1418], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8143, max= 8143, per=98.26%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.43%, ctx=108, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145130: Wed Aug 26 06:07:15 2026 write: IOPS=0, BW=3108KiB/s (3182kB/s)(12.0MiB/3954msec); 0 zone resets clat (msec): min=314, max=2138, avg=1296.96, stdev=919.90 lat (msec): min=315, max=2142, avg=1299.73, stdev=922.02 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8094, max= 8094, per=97.67%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.56%, ctx=33, 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=145132: Wed Aug 26 06:07:15 2026 write: IOPS=0, BW=4016KiB/s (4112kB/s)(12.0MiB/3060msec); 0 zone resets clat (msec): min=616, max=1595, avg=990.32, stdev=528.92 lat (msec): min=616, max=1598, avg=991.65, stdev=530.56 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8143, max= 8175, per=98.46%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.05%, ctx=65, 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=5470KiB/s (5602kB/s), 1452KiB/s-4103KiB/s (1487kB/s-4201kB/s), io=16.0MiB (16.8MB), run=2821-2995msec WRITE: bw=8287KiB/s (8486kB/s), 2904KiB/s-4016KiB/s (2974kB/s-4112kB/s), io=32.0MiB (33.6MB), run=2821-3954msec