== sanity test 398b: DIO and buffer IO race ============== 23:14:04 (1787886844) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.19216 s, 8.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144302: Thu Aug 27 23:16:39 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5992KiB/134306msec) clat (usec): min=34, max=958525, avg=45351.83, stdev=41158.10 lat (usec): min=35, max=958526, avg=45354.17, stdev=41157.77 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 72], 10.00th=[ 12387], 20.00th=[ 20317], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[160433], 99.50th=[200279], 99.90th=[392168], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 102, per=25.41%, avg=44.72, stdev=19.50, samples=261 iops : min= 1, max= 25, avg=10.57, stdev= 4.95, samples=261 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(6296KiB/134306msec); 0 zone resets clat (usec): min=739, max=302270, avg=41775.14, stdev=43877.96 lat (usec): min=740, max=302272, avg=41788.37, stdev=43874.40 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1352], 10.00th=[ 1598], 20.00th=[ 4686], | 30.00th=[ 9241], 40.00th=[ 19006], 50.00th=[ 30278], 60.00th=[ 41681], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[127402], | 99.00th=[200279], 99.50th=[223347], 99.90th=[274727], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 111, per=25.34%, avg=46.62, stdev=22.45, samples=263 iops : min= 1, max= 27, avg=11.04, stdev= 5.66, samples=263 lat (usec) : 50=0.16%, 100=3.32%, 250=0.49%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.09%, 4=3.29%, 10=6.64%, 20=10.16%, 50=35.64% lat (msec) : 100=26.37%, 250=7.42%, 500=0.13%, 1000=0.03% cpu : usr=0.10%, sys=5.21%, ctx=6550, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144303: Thu Aug 27 23:16:39 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5940KiB/135129msec) clat (usec): min=30, max=299514, avg=44086.47, stdev=31286.77 lat (usec): min=31, max=299531, avg=44089.00, stdev=31286.73 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 79], 10.00th=[ 13435], 20.00th=[ 21365], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[149947], 99.50th=[166724], 99.90th=[223347], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=24.87%, avg=43.77, stdev=19.87, samples=264 iops : min= 1, max= 25, avg=10.33, stdev= 5.01, samples=264 write: IOPS=11, BW=46.0KiB/s (48.1kB/s)(6348KiB/135129msec); 0 zone resets clat (usec): min=1016, max=911621, avg=43522.06, stdev=49938.20 lat (usec): min=1018, max=911624, avg=43524.62, stdev=49937.99 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 1762], 20.00th=[ 4686], | 30.00th=[ 10028], 40.00th=[ 20579], 50.00th=[ 31327], 60.00th=[ 43254], | 70.00th=[ 55837], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[131597], | 99.00th=[214959], 99.50th=[238027], 99.90th=[304088], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 127, per=25.35%, avg=46.64, stdev=21.05, samples=264 iops : min= 1, max= 31, avg=11.05, stdev= 5.32, samples=264 lat (usec) : 50=0.26%, 100=2.93%, 250=0.29%, 500=0.07%, 750=0.03% lat (msec) : 2=5.50%, 4=3.78%, 10=6.61%, 20=9.47%, 50=37.27% lat (msec) : 100=26.01%, 250=7.58%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.37%, ctx=6574, 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=144304: Thu Aug 27 23:16:39 2026 read: IOPS=11, BW=44.9KiB/s (46.0kB/s)(6028KiB/134150msec) clat (usec): min=29, max=314246, avg=43004.24, stdev=33061.33 lat (usec): min=29, max=314248, avg=43019.85, stdev=33078.54 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 8848], 20.00th=[ 20841], | 30.00th=[ 26084], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 43254], | 70.00th=[ 51643], 80.00th=[ 62129], 90.00th=[ 81265], 95.00th=[107480], | 99.00th=[143655], 99.50th=[177210], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 101, per=25.47%, avg=44.82, stdev=20.92, samples=262 iops : min= 1, max= 25, avg=10.60, stdev= 5.31, samples=262 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6260KiB/134150msec); 0 zone resets clat (usec): min=916, max=958477, avg=43894.90, stdev=50067.99 lat (usec): min=917, max=958479, avg=43905.86, stdev=50069.39 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1352], 10.00th=[ 1713], 20.00th=[ 4555], | 30.00th=[ 10814], 40.00th=[ 20841], 50.00th=[ 31851], 60.00th=[ 42730], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[127402], | 99.00th=[204473], 99.50th=[233833], 99.90th=[341836], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 102, per=25.15%, avg=46.29, stdev=20.53, samples=263 iops : min= 1, max= 25, avg=10.97, stdev= 5.18, samples=263 lat (usec) : 50=0.39%, 100=3.84%, 250=0.33%, 500=0.03%, 1000=0.23% lat (msec) : 2=5.73%, 4=3.52%, 10=5.73%, 20=9.41%, 50=37.57% lat (msec) : 100=24.93%, 250=7.94%, 500=0.33%, 1000=0.03% cpu : usr=0.08%, sys=5.17%, ctx=6452, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144305: Thu Aug 27 23:16:39 2026 read: IOPS=11, BW=44.5KiB/s (45.5kB/s)(6052KiB/136119msec) clat (usec): min=34, max=366123, avg=44160.09, stdev=33304.08 lat (usec): min=35, max=366125, avg=44180.07, stdev=33297.64 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 11863], 20.00th=[ 19792], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 53740], 80.00th=[ 65799], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[156238], 99.50th=[177210], 99.90th=[274727], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 7, max= 134, per=25.36%, avg=44.63, stdev=20.06, samples=264 iops : min= 1, max= 33, avg=10.55, stdev= 5.06, samples=264 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6236KiB/136119msec); 0 zone resets clat (usec): min=956, max=842653, avg=44083.32, stdev=50824.57 lat (usec): min=957, max=842655, avg=44091.72, stdev=50820.95 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1352], 10.00th=[ 1696], 20.00th=[ 4359], | 30.00th=[ 8586], 40.00th=[ 18744], 50.00th=[ 30540], 60.00th=[ 42730], | 70.00th=[ 58459], 80.00th=[ 78119], 90.00th=[105382], 95.00th=[131597], | 99.00th=[191890], 99.50th=[233833], 99.90th=[434111], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 15, max= 131, per=24.77%, avg=45.57, stdev=20.31, samples=266 iops : min= 3, max= 32, avg=10.78, stdev= 5.11, samples=266 lat (usec) : 50=0.26%, 100=3.52%, 250=0.39%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=6.18%, 4=3.48%, 10=7.03%, 20=9.96%, 50=35.06% lat (msec) : 100=25.46%, 250=8.24%, 500=0.23%, 1000=0.03% cpu : usr=0.09%, sys=5.39%, ctx=6590, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=176KiB/s (181kB/s), 43.0KiB/s-44.9KiB/s (45.0kB/s-46.0kB/s), io=23.4MiB (24.6MB), run=134150-136119msec WRITE: bw=185KiB/s (189kB/s), 45.8KiB/s-46.0KiB/s (46.9kB/s-48.1kB/s), io=24.6MiB (25.7MB), run=134150-136119msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144307: Thu Aug 27 23:19:15 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(5992KiB/291372msec) clat (msec): min=6, max=1017, avg=42.10, stdev=47.73 lat (msec): min=6, max=1017, avg=42.10, stdev=47.73 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 124], | 99.00th=[ 222], 99.50th=[ 275], 99.90th=[ 397], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 6, max= 79, per=28.42%, avg=23.30, stdev=15.93, samples=495 iops : min= 1, max= 19, avg= 5.17, stdev= 4.00, samples=495 write: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6296KiB/291372msec); 0 zone resets clat (msec): min=38, max=539, avg=144.96, stdev=66.18 lat (msec): min=38, max=539, avg=144.96, stdev=66.19 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 93], | 30.00th=[ 106], 40.00th=[ 116], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 468], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 6, max= 48, per=24.60%, avg=21.16, stdev= 9.58, samples=570 iops : min= 1, max= 12, avg= 4.63, stdev= 2.44, samples=570 lat (msec) : 10=1.63%, 20=13.12%, 50=22.69%, 100=21.45%, 250=36.82% lat (msec) : 500=4.23%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.23%, ctx=5180, 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=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=144308: Thu Aug 27 23:19:15 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(5940KiB/288862msec) clat (msec): min=5, max=911, avg=40.69, stdev=44.47 lat (msec): min=5, max=911, avg=40.69, stdev=44.47 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 82], 95.00th=[ 107], | 99.00th=[ 211], 99.50th=[ 239], 99.90th=[ 430], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 95, per=28.40%, avg=23.29, stdev=15.86, samples=490 iops : min= 1, max= 23, avg= 5.17, stdev= 3.98, samples=490 write: IOPS=5, BW=21.0KiB/s (22.5kB/s)(6348KiB/288862msec); 0 zone resets clat (msec): min=38, max=544, avg=143.83, stdev=66.91 lat (msec): min=38, max=544, avg=143.84, stdev=66.91 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 188], 90.00th=[ 228], 95.00th=[ 271], | 99.00th=[ 388], 99.50th=[ 443], 99.90th=[ 535], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 6, max= 55, per=25.31%, avg=21.77, stdev= 9.58, samples=559 iops : min= 1, max= 13, avg= 4.78, stdev= 2.43, samples=559 lat (msec) : 10=1.63%, 20=13.05%, 50=22.85%, 100=21.81%, 250=36.98% lat (msec) : 500=3.52%, 750=0.13%, 1000=0.03% cpu : usr=0.05%, sys=1.24%, ctx=5292, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144309: Thu Aug 27 23:19:15 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(6028KiB/292009msec) clat (msec): min=5, max=380, avg=42.48, stdev=41.26 lat (msec): min=5, max=380, avg=42.48, stdev=41.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 122], | 99.00th=[ 220], 99.50th=[ 275], 99.90th=[ 330], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 6, max= 95, per=27.62%, avg=22.65, stdev=15.70, samples=510 iops : min= 1, max= 23, avg= 5.00, stdev= 3.94, samples=510 write: IOPS=5, BW=21.4KiB/s (21.0kB/s)(6260KiB/292009msec); 0 zone resets clat (msec): min=40, max=1085, avg=145.57, stdev=70.26 lat (msec): min=40, max=1085, avg=145.58, stdev=70.26 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 104], 40.00th=[ 116], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 230], 95.00th=[ 279], | 99.00th=[ 359], 99.50th=[ 414], 99.90th=[ 498], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 55, per=24.60%, avg=21.15, stdev= 9.84, samples=566 iops : min= 1, max= 13, avg= 4.63, stdev= 2.50, samples=566 lat (msec) : 10=1.99%, 20=12.57%, 50=22.46%, 100=22.53%, 250=36.52% lat (msec) : 500=3.91%, 2000=0.03% cpu : usr=0.05%, sys=1.19%, ctx=5215, 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=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=144310: Thu Aug 27 23:19:15 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6052KiB/287234msec) clat (msec): min=6, max=493, avg=40.58, stdev=38.64 lat (msec): min=6, max=493, avg=40.58, stdev=38.64 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=[ 35], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 113], | 99.00th=[ 192], 99.50th=[ 228], 99.90th=[ 405], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 6, max= 112, per=28.86%, avg=23.67, stdev=15.98, samples=492 iops : min= 1, max= 28, avg= 5.26, stdev= 4.02, samples=492 write: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6236KiB/287234msec); 0 zone resets clat (msec): min=36, max=1084, avg=144.75, stdev=69.72 lat (msec): min=36, max=1084, avg=144.76, stdev=69.72 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 92], | 30.00th=[ 105], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 146], | 70.00th=[ 163], 80.00th=[ 190], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 372], 99.50th=[ 426], 99.90th=[ 527], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 6, max= 63, per=24.90%, avg=21.41, stdev= 9.54, samples=558 iops : min= 1, max= 15, avg= 4.69, stdev= 2.42, samples=558 lat (msec) : 10=1.95%, 20=14.16%, 50=21.45%, 100=21.94%, 250=36.91% lat (msec) : 500=3.48%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.20%, ctx=5137, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=82.2KiB/s (84.2kB/s), 20.6KiB/s-21.1KiB/s (21.1kB/s-21.6kB/s), io=23.4MiB (24.6MB), run=287234-292009msec WRITE: bw=86.1KiB/s (88.2kB/s), 21.4KiB/s-21.0KiB/s (21.0kB/s-22.5kB/s), io=24.6MiB (25.7MB), run=287234-292009msec 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=144374: Thu Aug 27 23:20:05 2026 read: IOPS=10, BW=170KiB/s (175kB/s)(5920KiB/34733msec) clat (usec): min=41, max=231569, avg=48129.20, stdev=36594.02 lat (usec): min=41, max=231570, avg=48131.85, stdev=36593.66 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 1401], | 30.00th=[ 32637], 40.00th=[ 40109], 50.00th=[ 46400], 60.00th=[ 53216], | 70.00th=[ 60556], 80.00th=[ 73925], 90.00th=[ 93848], 95.00th=[107480], | 99.00th=[170918], 99.50th=[229639], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 62, max= 379, per=25.60%, avg=169.75, stdev=75.32, samples=68 iops : min= 3, max= 23, avg= 9.82, stdev= 4.77, samples=68 write: IOPS=11, BW=183KiB/s (188kB/s)(6368KiB/34733msec); 0 zone resets clat (usec): min=1338, max=191429, avg=42234.28, stdev=41097.65 lat (usec): min=1341, max=191432, avg=42264.74, stdev=41074.68 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1991], 10.00th=[ 2966], 20.00th=[ 6325], | 30.00th=[ 10552], 40.00th=[ 17433], 50.00th=[ 28181], 60.00th=[ 41157], | 70.00th=[ 58459], 80.00th=[ 79168], 90.00th=[104334], 95.00th=[121111], | 99.00th=[179307], 99.50th=[189793], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 379, per=26.27%, avg=183.34, stdev=73.71, samples=68 iops : min= 1, max= 23, avg=10.69, stdev= 4.69, samples=68 lat (usec) : 50=0.65%, 100=6.51%, 250=2.08%, 500=0.26% lat (msec) : 2=2.86%, 4=4.69%, 10=7.42%, 20=7.81%, 50=28.13% lat (msec) : 100=30.21%, 250=9.38% cpu : usr=0.11%, sys=5.44%, ctx=1482, 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=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=144375: Thu Aug 27 23:20:05 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(5744KiB/36077msec) clat (usec): min=42, max=280381, avg=51831.05, stdev=37786.26 lat (usec): min=42, max=280382, avg=51838.84, stdev=37783.56 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 74], 10.00th=[ 91], 20.00th=[ 22414], | 30.00th=[ 32375], 40.00th=[ 41157], 50.00th=[ 47449], 60.00th=[ 56361], | 70.00th=[ 69731], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[111674], | 99.00th=[196084], 99.50th=[198181], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 410, per=23.80%, avg=157.79, stdev=66.89, samples=70 iops : min= 1, max= 25, avg= 9.06, stdev= 4.26, samples=70 write: IOPS=11, BW=181KiB/s (186kB/s)(6544KiB/36077msec); 0 zone resets clat (usec): min=1601, max=264252, avg=42443.87, stdev=43477.86 lat (usec): min=1603, max=264257, avg=42530.19, stdev=43486.74 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2024], 10.00th=[ 3458], 20.00th=[ 7308], | 30.00th=[ 10945], 40.00th=[ 18220], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 69731], 90.00th=[102237], 95.00th=[127402], | 99.00th=[191890], 99.50th=[204473], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 413, per=25.54%, avg=178.26, stdev=86.24, samples=70 iops : min= 1, max= 25, avg=10.36, stdev= 5.42, samples=70 lat (usec) : 50=0.39%, 100=4.82%, 250=1.30%, 500=0.52% lat (msec) : 2=2.73%, 4=3.52%, 10=8.59%, 20=8.85%, 50=29.30% lat (msec) : 100=30.47%, 250=9.24%, 500=0.26% cpu : usr=0.08%, sys=6.03%, ctx=1627, 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=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=144376: Thu Aug 27 23:20:05 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(6256KiB/35580msec) clat (usec): min=39, max=290863, avg=50249.46, stdev=41212.92 lat (usec): min=39, max=290865, avg=50256.84, stdev=41211.64 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 70], 10.00th=[ 81], 20.00th=[ 914], | 30.00th=[ 32113], 40.00th=[ 38011], 50.00th=[ 45876], 60.00th=[ 52691], | 70.00th=[ 64226], 80.00th=[ 76022], 90.00th=[ 98042], 95.00th=[124257], | 99.00th=[181404], 99.50th=[252707], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 62, max= 380, per=26.60%, avg=176.36, stdev=63.32, samples=69 iops : min= 3, max= 23, avg=10.25, stdev= 3.97, samples=69 write: IOPS=10, BW=170KiB/s (174kB/s)(6032KiB/35580msec); 0 zone resets clat (usec): min=1429, max=244018, avg=42135.71, stdev=42728.19 lat (usec): min=1431, max=244020, avg=42140.95, stdev=42729.34 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2024], 10.00th=[ 3851], 20.00th=[ 6587], | 30.00th=[ 10945], 40.00th=[ 18220], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 54264], 80.00th=[ 70779], 90.00th=[ 99091], 95.00th=[131597], | 99.00th=[187696], 99.50th=[217056], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 347, per=23.95%, avg=167.19, stdev=76.73, samples=69 iops : min= 1, max= 21, avg= 9.67, stdev= 4.88, samples=69 lat (usec) : 50=0.78%, 100=6.90%, 250=1.95%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=2.34%, 4=2.99%, 10=8.72%, 20=6.77%, 50=30.86% lat (msec) : 100=28.39%, 250=9.38%, 500=0.26% cpu : usr=0.10%, sys=5.36%, ctx=1563, 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=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=144377: Thu Aug 27 23:20:05 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6032KiB/35504msec) clat (usec): min=36, max=233380, avg=51614.39, stdev=40326.97 lat (usec): min=36, max=233381, avg=51616.09, stdev=40326.98 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 68], 10.00th=[ 80], 20.00th=[ 2606], | 30.00th=[ 33817], 40.00th=[ 41681], 50.00th=[ 49546], 60.00th=[ 56361], | 70.00th=[ 65274], 80.00th=[ 77071], 90.00th=[103285], 95.00th=[125305], | 99.00th=[189793], 99.50th=[212861], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 318, per=25.54%, avg=169.35, stdev=68.25, samples=69 iops : min= 1, max= 19, avg= 9.78, stdev= 4.29, samples=69 write: IOPS=11, BW=176KiB/s (180kB/s)(6256KiB/35504msec); 0 zone resets clat (usec): min=1581, max=228553, avg=40702.44, stdev=40196.78 lat (usec): min=1584, max=228556, avg=40731.88, stdev=40204.99 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2147], 10.00th=[ 4359], 20.00th=[ 7701], | 30.00th=[ 10814], 40.00th=[ 18744], 50.00th=[ 28443], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 64750], 90.00th=[ 94897], 95.00th=[129500], | 99.00th=[183501], 99.50th=[193987], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 342, per=25.60%, avg=178.72, stdev=71.89, samples=68 iops : min= 1, max= 21, avg=10.40, stdev= 4.56, samples=68 lat (usec) : 50=0.78%, 100=7.42%, 250=0.78%, 500=0.39% lat (msec) : 2=2.47%, 4=2.99%, 10=9.90%, 20=7.03%, 50=27.99% lat (msec) : 100=30.21%, 250=10.03% cpu : usr=0.10%, sys=5.74%, ctx=1604, 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=664KiB/s (680kB/s), 159KiB/s-176KiB/s (163kB/s-180kB/s), io=23.4MiB (24.5MB), run=34733-36077msec WRITE: bw=699KiB/s (715kB/s), 170KiB/s-183KiB/s (174kB/s-188kB/s), io=24.6MiB (25.8MB), run=34733-36077msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144369: Thu Aug 27 23:20:47 2026 read: IOPS=4, BW=75.7KiB/s (77.5kB/s)(5920KiB/78181msec) clat (msec): min=7, max=344, avg=50.83, stdev=44.45 lat (msec): min=7, max=344, avg=50.83, stdev=44.45 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 68], 90.00th=[ 103], 95.00th=[ 142], | 99.00th=[ 213], 99.50th=[ 338], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 242, per=27.00%, avg=82.61, stdev=49.23, samples=140 iops : min= 1, max= 15, avg= 4.35, stdev= 3.13, samples=140 write: IOPS=5, BW=81.5KiB/s (83.4kB/s)(6368KiB/78181msec); 0 zone resets clat (msec): min=39, max=519, avg=148.96, stdev=76.18 lat (msec): min=39, max=519, avg=148.97, stdev=76.18 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 163], 80.00th=[ 201], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 430], 99.50th=[ 472], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 29, max= 191, per=25.54%, avg=82.23, stdev=40.24, samples=152 iops : min= 1, max= 11, avg= 4.32, stdev= 2.57, samples=152 lat (msec) : 10=0.65%, 20=7.03%, 50=25.52%, 100=23.70%, 250=38.15% lat (msec) : 500=4.82%, 750=0.13% cpu : usr=0.04%, sys=1.29%, ctx=1415, 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=144370: Thu Aug 27 23:20:47 2026 read: IOPS=4, BW=74.8KiB/s (76.6kB/s)(5744KiB/76776msec) clat (msec): min=9, max=314, avg=50.28, stdev=46.29 lat (msec): min=9, max=314, avg=50.28, stdev=46.30 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 65], 90.00th=[ 99], 95.00th=[ 148], | 99.00th=[ 247], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 29, max= 383, per=29.10%, avg=89.04, stdev=57.82, samples=126 iops : min= 1, max= 23, avg= 4.76, stdev= 3.62, samples=126 write: IOPS=5, BW=85.2KiB/s (87.3kB/s)(6544KiB/76776msec); 0 zone resets clat (msec): min=34, max=389, avg=142.98, stdev=67.32 lat (msec): min=34, max=389, avg=142.99, stdev=67.32 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 114], 50.00th=[ 129], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 29, max= 250, per=27.47%, avg=88.44, stdev=38.89, samples=145 iops : min= 1, max= 15, avg= 4.72, stdev= 2.52, samples=145 lat (msec) : 10=0.78%, 20=7.55%, 50=24.61%, 100=25.65%, 250=36.46% lat (msec) : 500=4.95% cpu : usr=0.04%, sys=1.36%, ctx=1335, 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=144371: Thu Aug 27 23:20:47 2026 read: IOPS=5, BW=83.0KiB/s (85.0kB/s)(6256KiB/75359msec) clat (msec): min=6, max=338, avg=48.95, stdev=45.19 lat (msec): min=6, max=338, avg=48.95, stdev=45.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 61], 90.00th=[ 93], 95.00th=[ 136], | 99.00th=[ 262], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 316, per=30.50%, avg=93.34, stdev=60.97, samples=132 iops : min= 1, max= 19, avg= 5.02, stdev= 3.85, samples=132 write: IOPS=5, BW=80.0KiB/s (81.0kB/s)(6032KiB/75359msec); 0 zone resets clat (msec): min=44, max=504, avg=148.20, stdev=74.38 lat (msec): min=44, max=504, avg=148.20, stdev=74.38 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 130], 60.00th=[ 144], | 70.00th=[ 171], 80.00th=[ 201], 90.00th=[ 249], 95.00th=[ 296], | 99.00th=[ 405], 99.50th=[ 498], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 29, max= 159, per=25.31%, avg=81.50, stdev=36.68, samples=144 iops : min= 1, max= 9, avg= 4.27, stdev= 2.35, samples=144 lat (msec) : 10=0.78%, 20=7.94%, 50=26.56%, 100=25.65%, 250=33.98% lat (msec) : 500=4.95%, 750=0.13% cpu : usr=0.03%, sys=1.43%, ctx=1468, 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=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=144372: Thu Aug 27 23:20:47 2026 read: IOPS=4, BW=78.1KiB/s (80.0kB/s)(6032KiB/77197msec) clat (msec): min=7, max=285, avg=48.67, stdev=40.19 lat (msec): min=7, max=285, avg=48.68, stdev=40.19 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 52], 80.00th=[ 66], 90.00th=[ 95], 95.00th=[ 136], | 99.00th=[ 211], 99.50th=[ 234], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 29, max= 288, per=29.80%, avg=91.19, stdev=52.58, samples=129 iops : min= 1, max= 18, avg= 4.89, stdev= 3.35, samples=129 write: IOPS=5, BW=81.0KiB/s (82.0kB/s)(6256KiB/77197msec); 0 zone resets clat (msec): min=46, max=536, avg=149.78, stdev=74.90 lat (msec): min=46, max=536, avg=149.79, stdev=74.90 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 73], 10.00th=[ 82], 20.00th=[ 94], | 30.00th=[ 105], 40.00th=[ 118], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 192], 90.00th=[ 247], 95.00th=[ 317], | 99.00th=[ 393], 99.50th=[ 527], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 29, max= 160, per=25.25%, avg=81.29, stdev=36.71, samples=151 iops : min= 1, max= 10, avg= 4.26, stdev= 2.35, samples=151 lat (msec) : 10=0.39%, 20=8.59%, 50=25.00%, 100=23.70%, 250=37.24% lat (msec) : 500=4.82%, 750=0.26% cpu : usr=0.05%, sys=1.41%, ctx=1387, 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=306KiB/s (314kB/s), 74.8KiB/s-83.0KiB/s (76.6kB/s-85.0kB/s), io=23.4MiB (24.5MB), run=75359-78181msec WRITE: bw=322KiB/s (330kB/s), 80.0KiB/s-85.2KiB/s (81.0kB/s-87.3kB/s), io=24.6MiB (25.8MB), run=75359-78181msec 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=144400: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1317KiB/s (1349kB/s)(7168KiB/5442msec) clat (msec): min=180, max=530, avg=292.60, stdev=114.27 lat (msec): min=180, max=530, avg=292.60, stdev=114.27 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 205], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 279], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 305], 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= 1402, max= 4039, per=61.33%, avg=2307.80, stdev=1005.63, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=941KiB/s (963kB/s)(5120KiB/5442msec); 0 zone resets clat (msec): min=350, max=876, avg=605.85, stdev=227.91 lat (msec): min=350, max=876, avg=606.19, stdev=228.00 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1928, max= 2039, per=37.84%, avg=1993.40, stdev=51.08, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=16.67%, 500=50.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=11.38%, ctx=286, 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=144401: Thu Aug 27 23:21:04 2026 read: IOPS=0, BW=388KiB/s (397kB/s)(2048KiB/5282msec) clat (usec): min=1760, max=228995, avg=115378.25, stdev=160679.45 lat (usec): min=1762, max=228999, avg=115380.89, stdev=160680.82 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 1762], 10.00th=[ 1762], 20.00th=[ 1762], | 30.00th=[ 1762], 40.00th=[ 1762], 50.00th=[ 1762], 60.00th=[229639], | 70.00th=[229639], 80.00th=[229639], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 1950, max= 2011, per=52.63%, avg=1980.50, stdev=43.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1939KiB/s (1985kB/s)(10.0MiB/5282msec); 0 zone resets clat (msec): min=112, max=877, avg=469.23, stdev=248.75 lat (msec): min=112, max=878, avg=470.74, stdev=247.80 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 180], | 30.00th=[ 253], 40.00th=[ 363], 50.00th=[ 472], 60.00th=[ 506], | 70.00th=[ 531], 80.00th=[ 634], 90.00th=[ 768], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1950, max= 4079, per=48.87%, avg=2574.29, stdev=964.22, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 2=8.33%, 250=25.00%, 500=25.00%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=10.47%, ctx=157, 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=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=144402: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1191KiB/s (1219kB/s)(6144KiB/5160msec) clat (usec): min=564, max=471067, avg=157999.95, stdev=192249.58 lat (usec): min=564, max=471069, avg=158001.37, stdev=192249.88 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 979], 50.00th=[ 979], 60.00th=[235930], | 70.00th=[238027], 80.00th=[238027], 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= 2039, max= 4096, per=89.84%, avg=3380.67, stdev=1162.77, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1191KiB/s (1219kB/s)(6144KiB/5160msec); 0 zone resets clat (msec): min=194, max=1126, avg=625.27, stdev=335.47 lat (msec): min=197, max=1126, avg=625.87, stdev=334.67 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 701], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1410, max= 2039, per=35.89%, avg=1890.60, stdev=271.05, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 250=25.00%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.32%, ctx=87, 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=144403: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1139KiB/s (1167kB/s)(5120KiB/4494msec) clat (msec): min=4, max=340, avg=211.16, stdev=136.10 lat (msec): min=4, max=340, avg=211.16, stdev=136.10 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7801, max= 7801, per=100.00%, avg=7801.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1595KiB/s (1633kB/s)(7168KiB/4494msec); 0 zone resets clat (msec): min=198, max=1000, avg=473.81, stdev=296.52 lat (msec): min=199, max=1000, avg=473.93, stdev=296.51 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 241], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 760], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1398, max= 4071, per=50.78%, avg=2675.20, stdev=1206.13, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 10=8.33%, 250=25.00%, 500=50.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.50%, ctx=150, 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=3763KiB/s (3854kB/s), 388KiB/s-1317KiB/s (397kB/s-1349kB/s), io=20.0MiB (20.0MB), run=4494-5442msec WRITE: bw=5269KiB/s (5395kB/s), 941KiB/s-1939KiB/s (963kB/s-1985kB/s), io=28.0MiB (29.4MB), run=4494-5442msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144396: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1513KiB/s (1549kB/s)(7168KiB/4738msec) clat (msec): min=80, max=518, avg=242.52, stdev=145.75 lat (msec): min=80, max=518, avg=242.53, stdev=145.75 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 114], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 243], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 300], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 2003, max= 4087, per=79.98%, avg=2776.25, stdev=981.83, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1081KiB/s (1107kB/s)(5120KiB/4738msec); 0 zone resets clat (msec): min=285, max=1158, avg=578.77, stdev=337.27 lat (msec): min=285, max=1158, avg=578.89, stdev=337.24 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 542], 80.00th=[ 542], 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= 1973, max= 2048, per=41.75%, avg=2029.20, stdev=31.58, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.61%, ctx=86, 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=144397: Thu Aug 27 23:21:04 2026 read: IOPS=0, BW=347KiB/s (356kB/s)(2048KiB/5899msec) clat (msec): min=152, max=289, avg=220.87, stdev=97.19 lat (msec): min=152, max=289, avg=220.87, stdev=97.19 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1471, max= 2048, per=50.69%, avg=1759.50, stdev=408.00, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1736KiB/s (1778kB/s)(10.0MiB/5899msec); 0 zone resets clat (msec): min=222, max=1337, avg=534.48, stdev=325.66 lat (msec): min=222, max=1338, avg=535.01, stdev=325.91 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 255], | 30.00th=[ 279], 40.00th=[ 368], 50.00th=[ 460], 60.00th=[ 502], | 70.00th=[ 625], 80.00th=[ 642], 90.00th=[ 659], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1471, max= 4087, per=45.54%, avg=2213.12, stdev=781.91, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=16.67%, 500=41.67%, 750=33.33%, 2000=8.33% cpu : usr=0.03%, sys=4.32%, ctx=106, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144398: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1065KiB/s (1091kB/s)(6144KiB/5769msec) clat (msec): min=124, max=707, avg=303.87, stdev=219.68 lat (msec): min=124, max=707, avg=303.87, stdev=219.68 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 296], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1976, max= 3946, per=72.08%, avg=2502.00, stdev=963.18, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1065KiB/s (1091kB/s)(6144KiB/5769msec); 0 zone resets clat (msec): min=221, max=1062, avg=632.37, stdev=300.41 lat (msec): min=221, max=1062, avg=632.49, stdev=300.41 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 684], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 1508, max= 2048, per=40.07%, avg=1947.33, stdev=215.85, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.21%, ctx=128, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144399: Thu Aug 27 23:21:04 2026 read: IOPS=1, BW=1050KiB/s (1075kB/s)(5120KiB/4877msec) clat (msec): min=105, max=855, avg=423.61, stdev=327.16 lat (msec): min=105, max=855, avg=423.61, stdev=327.16 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 684], 80.00th=[ 684], 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= 2043, max= 4087, per=78.49%, avg=2724.33, stdev=1180.10, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1470KiB/s (1505kB/s)(7168KiB/4877msec); 0 zone resets clat (msec): min=204, max=543, avg=390.62, stdev=120.21 lat (msec): min=204, max=543, avg=390.72, stdev=120.22 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 288], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 380], 60.00th=[ 430], | 70.00th=[ 430], 80.00th=[ 518], 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= 1973, max= 2884, per=44.56%, avg=2165.67, stdev=353.14, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=2.83%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3472KiB/s (3555kB/s), 347KiB/s-1513KiB/s (356kB/s-1549kB/s), io=20.0MiB (20.0MB), run=4738-5899msec WRITE: bw=4860KiB/s (4977kB/s), 1065KiB/s-1736KiB/s (1091kB/s-1778kB/s), io=28.0MiB (29.4MB), run=4738-5899msec 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=144411: Thu Aug 27 23:21:19 2026 read: IOPS=1, BW=4509KiB/s (4618kB/s)(12.0MiB/2725msec) clat (msec): min=545, max=1161, avg=823.27, stdev=312.65 lat (msec): min=545, max=1161, avg=823.27, stdev=312.65 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 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= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, 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=12.26%, ctx=230, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144412: Thu Aug 27 23:21:19 2026 read: IOPS=0, BW=1324KiB/s (1356kB/s)(4096KiB/3093msec) clat (nsec): min=764388k, max=764388k, avg=764388048.00, stdev= 0.00 lat (nsec): min=764392k, max=764392k, avg=764391528.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] 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=2649KiB/s (2712kB/s)(8192KiB/3093msec); 0 zone resets clat (msec): min=829, max=1220, avg=1025.15, stdev=276.47 lat (msec): min=830, max=1221, avg=1025.71, stdev=276.47 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8143, max= 8143, per=84.89%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.56%, ctx=127, 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=144413: Thu Aug 27 23:21:19 2026 write: IOPS=0, BW=3597KiB/s (3684kB/s)(12.0MiB/3416msec); 0 zone resets clat (msec): min=387, max=1766, avg=1125.01, stdev=694.46 lat (msec): min=388, max=1768, avg=1126.10, stdev=694.75 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8159, max= 8192, per=85.23%, 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=3.57%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144416: Thu Aug 27 23:21:19 2026 write: IOPS=1, BW=4849KiB/s (4966kB/s)(12.0MiB/2534msec); 0 zone resets clat (msec): min=539, max=1219, avg=788.23, stdev=375.00 lat (msec): min=539, max=1225, avg=791.47, stdev=377.73 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8078, max= 8159, per=84.64%, avg=8118.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.08%, sys=5.25%, ctx=58, 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=5297KiB/s (5424kB/s), 1324KiB/s-4509KiB/s (1356kB/s-4618kB/s), io=16.0MiB (16.8MB), run=2725-3093msec WRITE: bw=9593KiB/s (9823kB/s), 2649KiB/s-4849KiB/s (2712kB/s-4966kB/s), io=32.0MiB (33.6MB), run=2534-3416msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144414: Thu Aug 27 23:21:20 2026 read: IOPS=1, BW=4353KiB/s (4457kB/s)(12.0MiB/2823msec) clat (msec): min=338, max=1275, avg=901.78, stdev=496.21 lat (msec): min=338, max=1275, avg=901.78, stdev=496.21 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.62%, ctx=48, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144415: Thu Aug 27 23:21:20 2026 read: IOPS=0, BW=1147KiB/s (1174kB/s)(4096KiB/3572msec) clat (nsec): min=939653k, max=939653k, avg=939653373.00, stdev= 0.00 lat (nsec): min=939657k, max=939657k, avg=939656544.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 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=2293KiB/s (2348kB/s)(8192KiB/3572msec); 0 zone resets clat (msec): min=1019, max=1428, avg=1223.99, stdev=288.81 lat (msec): min=1020, max=1428, avg=1224.54, stdev=288.79 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8143, max= 8143, per=94.81%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.67%, 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=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=144417: Thu Aug 27 23:21:20 2026 write: IOPS=0, BW=3221KiB/s (3298kB/s)(12.0MiB/3815msec); 0 zone resets clat (msec): min=244, max=2014, avg=1249.78, stdev=909.33 lat (msec): min=244, max=2015, avg=1252.32, stdev=910.10 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 8110, max= 8143, per=94.62%, avg=8126.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.33%, ctx=29, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144418: Thu Aug 27 23:21:20 2026 write: IOPS=1, BW=4345KiB/s (4449kB/s)(12.0MiB/2828msec); 0 zone resets clat (msec): min=621, max=1055, avg=907.84, stdev=247.64 lat (msec): min=622, max=1056, avg=910.07, stdev=249.06 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8078, max= 8143, per=94.43%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.18%, sys=5.45%, ctx=51, 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=4587KiB/s (4697kB/s), 1147KiB/s-4353KiB/s (1174kB/s-4457kB/s), io=16.0MiB (16.8MB), run=2823-3572msec WRITE: bw=8589KiB/s (8795kB/s), 2293KiB/s-4345KiB/s (2348kB/s-4449kB/s), io=32.0MiB (33.6MB), run=2828-3815msec