== sanity test 398b: DIO and buffer IO race ============== 20:05:53 (1763341553) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.49243 s, 9.2 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=183735: Sun Nov 16 20:07:48 2025 read: IOPS=15, BW=61.5KiB/s (62.0kB/s)(5992KiB/97450msec) clat (usec): min=103, max=234029, avg=36735.78, stdev=23361.37 lat (usec): min=103, max=234031, avg=36737.11, stdev=23361.39 clat percentiles (usec): | 1.00th=[ 137], 5.00th=[ 766], 10.00th=[ 14746], 20.00th=[ 19792], | 30.00th=[ 23725], 40.00th=[ 27657], 50.00th=[ 32375], 60.00th=[ 38011], | 70.00th=[ 44303], 80.00th=[ 51643], 90.00th=[ 63177], 95.00th=[ 77071], | 99.00th=[115868], 99.50th=[135267], 99.90th=[206570], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 15, max= 135, per=24.81%, avg=61.02, stdev=19.38, samples=192 iops : min= 3, max= 33, avg=14.61, stdev= 4.89, samples=192 write: IOPS=16, BW=64.6KiB/s (66.2kB/s)(6296KiB/97450msec); 0 zone resets clat (usec): min=767, max=624032, avg=26718.33, stdev=30425.11 lat (usec): min=768, max=624034, avg=26719.97, stdev=30425.07 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1123], 10.00th=[ 1205], 20.00th=[ 1893], | 30.00th=[ 5800], 40.00th=[ 12780], 50.00th=[ 19792], 60.00th=[ 26084], | 70.00th=[ 34341], 80.00th=[ 46924], 90.00th=[ 63177], 95.00th=[ 78119], | 99.00th=[113771], 99.50th=[126354], 99.90th=[156238], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 15, max= 142, per=24.94%, avg=64.10, stdev=24.02, samples=192 iops : min= 3, max= 35, avg=15.40, stdev= 6.07, samples=192 lat (usec) : 250=2.05%, 500=0.29%, 750=0.07%, 1000=0.36% lat (msec) : 2=10.32%, 4=2.80%, 10=5.57%, 20=14.49%, 50=44.66% lat (msec) : 100=17.45%, 250=1.92%, 750=0.03% cpu : usr=0.12%, sys=6.79%, ctx=6418, majf=0, minf=19 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=183736: Sun Nov 16 20:07:48 2025 read: IOPS=15, BW=61.3KiB/s (62.8kB/s)(5940KiB/96857msec) clat (usec): min=106, max=280868, avg=37192.88, stdev=23861.07 lat (usec): min=106, max=280869, avg=37194.19, stdev=23861.09 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 7898], 10.00th=[ 14615], 20.00th=[ 19792], | 30.00th=[ 23987], 40.00th=[ 27657], 50.00th=[ 32375], 60.00th=[ 38011], | 70.00th=[ 44303], 80.00th=[ 52691], 90.00th=[ 64750], 95.00th=[ 77071], | 99.00th=[120062], 99.50th=[135267], 99.90th=[185598], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 23, max= 103, per=24.78%, avg=60.95, stdev=18.85, samples=191 iops : min= 5, max= 25, avg=14.60, stdev= 4.76, samples=191 write: IOPS=16, BW=65.5KiB/s (67.1kB/s)(6348KiB/96857msec); 0 zone resets clat (usec): min=903, max=609631, avg=25993.34, stdev=31039.12 lat (usec): min=904, max=609633, avg=25997.05, stdev=31042.00 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1090], 10.00th=[ 1156], 20.00th=[ 1467], | 30.00th=[ 4555], 40.00th=[ 10290], 50.00th=[ 18220], 60.00th=[ 25297], | 70.00th=[ 33162], 80.00th=[ 44303], 90.00th=[ 65274], 95.00th=[ 80217], | 99.00th=[113771], 99.50th=[131597], 99.90th=[246416], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 158, per=25.32%, avg=65.06, stdev=25.47, samples=191 iops : min= 1, max= 39, avg=15.63, stdev= 6.43, samples=191 lat (usec) : 250=1.89%, 500=0.33%, 750=0.07%, 1000=0.55% lat (msec) : 2=11.46%, 4=2.83%, 10=5.99%, 20=13.93%, 50=42.87% lat (msec) : 100=18.00%, 250=2.02%, 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=6.41%, ctx=6201, majf=0, minf=19 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=183737: Sun Nov 16 20:07:48 2025 read: IOPS=15, BW=62.3KiB/s (63.8kB/s)(6028KiB/96761msec) clat (usec): min=100, max=414331, avg=36482.44, stdev=24472.74 lat (usec): min=100, max=414332, avg=36491.05, stdev=24477.92 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 8717], 10.00th=[ 14615], 20.00th=[ 19268], | 30.00th=[ 22938], 40.00th=[ 26870], 50.00th=[ 31589], 60.00th=[ 36963], | 70.00th=[ 44303], 80.00th=[ 51643], 90.00th=[ 65274], 95.00th=[ 76022], | 99.00th=[111674], 99.50th=[131597], 99.90th=[170918], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 15, max= 119, per=25.15%, avg=61.86, stdev=20.11, samples=190 iops : min= 3, max= 29, avg=14.83, stdev= 5.09, samples=190 write: IOPS=16, BW=64.7KiB/s (66.2kB/s)(6260KiB/96761msec); 0 zone resets clat (usec): min=925, max=587838, avg=26443.50, stdev=29655.53 lat (usec): min=927, max=587839, avg=26445.24, stdev=29655.60 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1123], 10.00th=[ 1188], 20.00th=[ 2024], | 30.00th=[ 5342], 40.00th=[ 11863], 50.00th=[ 19792], 60.00th=[ 26084], | 70.00th=[ 34341], 80.00th=[ 45876], 90.00th=[ 62129], 95.00th=[ 78119], | 99.00th=[106431], 99.50th=[111674], 99.90th=[173016], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 7, max= 141, per=24.97%, avg=64.17, stdev=24.93, samples=190 iops : min= 1, max= 35, avg=15.42, stdev= 6.30, samples=190 lat (usec) : 250=2.05%, 500=0.20%, 1000=0.39% lat (msec) : 2=9.77%, 4=3.32%, 10=5.99%, 20=14.91%, 50=43.36% lat (msec) : 100=18.49%, 250=1.46%, 500=0.03%, 750=0.03% cpu : usr=0.12%, sys=6.76%, ctx=6199, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183738: Sun Nov 16 20:07:48 2025 read: IOPS=15, BW=63.4KiB/s (64.9kB/s)(6052KiB/95420msec) clat (usec): min=114, max=559520, avg=35606.86, stdev=25624.70 lat (usec): min=114, max=559521, avg=35609.43, stdev=25626.13 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 396], 10.00th=[ 14222], 20.00th=[ 19006], | 30.00th=[ 23200], 40.00th=[ 26608], 50.00th=[ 31065], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 51119], 90.00th=[ 61604], 95.00th=[ 71828], | 99.00th=[110625], 99.50th=[132645], 99.90th=[221250], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 15, max= 128, per=25.59%, avg=62.94, stdev=21.17, samples=188 iops : min= 3, max= 32, avg=15.10, stdev= 5.35, samples=188 write: IOPS=16, BW=65.4KiB/s (66.9kB/s)(6236KiB/95420msec); 0 zone resets clat (usec): min=909, max=276134, avg=26423.96, stdev=28168.89 lat (usec): min=939, max=276136, avg=26426.34, stdev=28168.24 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1106], 10.00th=[ 1205], 20.00th=[ 2180], | 30.00th=[ 5342], 40.00th=[ 11338], 50.00th=[ 19268], 60.00th=[ 25560], | 70.00th=[ 34866], 80.00th=[ 46400], 90.00th=[ 63701], 95.00th=[ 79168], | 99.00th=[117965], 99.50th=[145753], 99.90th=[223347], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 128, per=25.21%, avg=64.79, stdev=24.12, samples=188 iops : min= 1, max= 32, avg=15.57, stdev= 6.11, samples=188 lat (usec) : 250=2.12%, 500=0.42%, 750=0.07%, 1000=0.36% lat (msec) : 2=9.44%, 4=3.52%, 10=6.61%, 20=14.62%, 50=44.17% lat (msec) : 100=17.06%, 250=1.56%, 500=0.03%, 750=0.03% cpu : usr=0.10%, sys=6.63%, ctx=6274, 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=246KiB/s (252kB/s), 61.3KiB/s-63.4KiB/s (62.8kB/s-64.9kB/s), io=23.4MiB (24.6MB), run=95420-97450msec WRITE: bw=258KiB/s (264kB/s), 64.6KiB/s-65.5KiB/s (66.2kB/s-67.1kB/s), io=24.6MiB (25.7MB), run=95420-97450msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183740: Sun Nov 16 20:08:28 2025 read: IOPS=10, BW=43.5KiB/s (44.6kB/s)(5992KiB/137645msec) clat (msec): min=5, max=694, avg=35.76, stdev=34.90 lat (msec): min=5, max=694, avg=35.76, stdev=34.90 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 75], 95.00th=[ 104], | 99.00th=[ 148], 99.50th=[ 180], 99.90th=[ 249], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 136, per=24.92%, avg=43.36, stdev=26.18, samples=269 iops : min= 1, max= 34, avg=10.16, stdev= 6.60, samples=269 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6296KiB/137645msec); 0 zone resets clat (msec): min=8, max=398, avg=53.33, stdev=33.95 lat (msec): min=8, max=398, avg=53.33, stdev=33.95 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 63], 80.00th=[ 75], 90.00th=[ 96], 95.00th=[ 118], | 99.00th=[ 171], 99.50th=[ 211], 99.90th=[ 255], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 127, per=25.02%, avg=45.54, stdev=24.82, samples=269 iops : min= 1, max= 31, avg=10.71, stdev= 6.24, samples=269 lat (msec) : 10=2.60%, 20=18.29%, 50=48.27%, 100=23.76%, 250=6.97% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.08%, sys=2.18%, ctx=4918, 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=183741: Sun Nov 16 20:08:28 2025 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(5940KiB/137777msec) clat (msec): min=5, max=629, avg=35.53, stdev=34.18 lat (msec): min=5, max=629, avg=35.53, stdev=34.19 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 101], | 99.00th=[ 146], 99.50th=[ 161], 99.90th=[ 317], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 5, max= 135, per=24.52%, avg=42.66, stdev=27.02, samples=270 iops : min= 1, max= 33, avg= 9.99, stdev= 6.81, samples=270 write: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6348KiB/137777msec); 0 zone resets clat (msec): min=10, max=428, avg=53.49, stdev=34.05 lat (msec): min=10, max=428, avg=53.49, stdev=34.05 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 63], 80.00th=[ 77], 90.00th=[ 101], 95.00th=[ 121], | 99.00th=[ 167], 99.50th=[ 192], 99.90th=[ 234], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 111, per=25.03%, avg=45.56, stdev=24.58, samples=270 iops : min= 1, max= 27, avg=10.71, stdev= 6.18, samples=270 lat (msec) : 10=2.34%, 20=19.27%, 50=48.18%, 100=22.59%, 250=7.52% lat (msec) : 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=2.14%, ctx=4902, 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=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=183742: Sun Nov 16 20:08:28 2025 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(6028KiB/136747msec) clat (msec): min=5, max=257, avg=35.44, stdev=29.62 lat (msec): min=5, max=257, avg=35.44, stdev=29.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 77], 95.00th=[ 99], | 99.00th=[ 142], 99.50th=[ 157], 99.90th=[ 224], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 7, max= 143, per=25.14%, avg=43.75, stdev=26.02, samples=268 iops : min= 1, max= 35, avg=10.26, stdev= 6.53, samples=268 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6260KiB/136747msec); 0 zone resets clat (msec): min=11, max=651, avg=53.17, stdev=37.63 lat (msec): min=11, max=651, avg=53.17, stdev=37.63 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 61], 80.00th=[ 73], 90.00th=[ 96], 95.00th=[ 115], | 99.00th=[ 171], 99.50th=[ 226], 99.90th=[ 456], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 5, max= 119, per=24.96%, avg=45.42, stdev=24.97, samples=268 iops : min= 1, max= 29, avg=10.68, stdev= 6.29, samples=268 lat (msec) : 10=2.38%, 20=17.94%, 50=49.28%, 100=23.50%, 250=6.71% lat (msec) : 500=0.16%, 750=0.03% cpu : usr=0.07%, sys=2.16%, ctx=4815, 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=183743: Sun Nov 16 20:08:28 2025 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(6052KiB/137343msec) clat (msec): min=4, max=321, avg=35.01, stdev=30.53 lat (msec): min=4, max=321, avg=35.01, stdev=30.53 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 74], 95.00th=[ 100], | 99.00th=[ 148], 99.50th=[ 157], 99.90th=[ 271], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 143, per=25.51%, avg=44.38, stdev=27.40, samples=266 iops : min= 1, max= 35, avg=10.42, stdev= 6.90, samples=266 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6236KiB/137343msec); 0 zone resets clat (msec): min=10, max=641, avg=54.04, stdev=38.23 lat (msec): min=10, max=641, avg=54.04, stdev=38.23 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 62], 80.00th=[ 78], 90.00th=[ 99], 95.00th=[ 120], | 99.00th=[ 178], 99.50th=[ 213], 99.90th=[ 460], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 127, per=24.76%, avg=45.07, stdev=24.03, samples=270 iops : min= 1, max= 31, avg=10.59, stdev= 6.05, samples=270 lat (msec) : 10=2.70%, 20=19.37%, 50=47.43%, 100=23.54%, 250=6.80% lat (msec) : 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=2.15%, ctx=4811, 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=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), 43.1KiB/s-44.1KiB/s (44.1kB/s-45.1kB/s), io=23.4MiB (24.6MB), run=136747-137777msec WRITE: bw=182KiB/s (187kB/s), 45.4KiB/s-46.1KiB/s (46.5kB/s-47.2kB/s), io=24.6MiB (25.7MB), run=136747-137777msec 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=183787: Sun Nov 16 20:09:13 2025 read: IOPS=11, BW=186KiB/s (191kB/s)(5920KiB/31808msec) clat (usec): min=112, max=180851, avg=44887.02, stdev=29854.74 lat (usec): min=112, max=180852, avg=44888.46, stdev=29854.67 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 172], 10.00th=[ 420], 20.00th=[ 22414], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 42206], 60.00th=[ 47973], | 70.00th=[ 54264], 80.00th=[ 63701], 90.00th=[ 79168], 95.00th=[100140], | 99.00th=[139461], 99.50th=[175113], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 62, max= 378, per=24.74%, avg=184.81, stdev=72.17, samples=62 iops : min= 3, max= 23, avg=10.79, stdev= 4.59, samples=62 write: IOPS=12, BW=200KiB/s (205kB/s)(6368KiB/31808msec); 0 zone resets clat (usec): min=1432, max=185021, avg=37974.13, stdev=36403.05 lat (usec): min=1433, max=185023, avg=37976.30, stdev=36403.04 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1647], 10.00th=[ 1860], 20.00th=[ 6849], | 30.00th=[ 12911], 40.00th=[ 20055], 50.00th=[ 28181], 60.00th=[ 35390], | 70.00th=[ 49021], 80.00th=[ 61604], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[164627], 99.50th=[181404], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 345, per=25.47%, avg=200.21, stdev=75.32, samples=62 iops : min= 1, max= 21, avg=11.77, stdev= 4.76, samples=62 lat (usec) : 250=4.30%, 500=0.52% lat (msec) : 2=5.99%, 4=2.34%, 10=5.73%, 20=10.42%, 50=38.02% lat (msec) : 100=26.04%, 250=6.64% cpu : usr=0.08%, sys=6.56%, ctx=1675, 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=183788: Sun Nov 16 20:09:13 2025 read: IOPS=11, BW=182KiB/s (187kB/s)(5744KiB/31531msec) clat (usec): min=138, max=207609, avg=46108.43, stdev=30521.54 lat (usec): min=139, max=207610, avg=46109.83, stdev=30521.54 clat percentiles (usec): | 1.00th=[ 145], 5.00th=[ 188], 10.00th=[ 14615], 20.00th=[ 23200], | 30.00th=[ 30802], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 56361], 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[168821], 99.50th=[191890], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 52, max= 350, per=24.46%, avg=182.70, stdev=65.82, samples=61 iops : min= 3, max= 21, avg=10.66, stdev= 4.13, samples=61 write: IOPS=12, BW=208KiB/s (213kB/s)(6544KiB/31531msec); 0 zone resets clat (usec): min=1249, max=231815, avg=36492.25, stdev=34165.67 lat (usec): min=1251, max=231817, avg=36494.56, stdev=34165.76 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1631], 10.00th=[ 1795], 20.00th=[ 6718], | 30.00th=[ 13435], 40.00th=[ 20055], 50.00th=[ 27919], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 61080], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[145753], 99.50th=[158335], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 63, max= 448, per=26.35%, avg=207.13, stdev=86.94, samples=61 iops : min= 3, max= 28, avg=12.20, stdev= 5.50, samples=61 lat (usec) : 250=2.99%, 500=0.65% lat (msec) : 2=6.64%, 4=1.56%, 10=5.34%, 20=10.81%, 50=39.19% lat (msec) : 100=27.73%, 250=5.08% cpu : usr=0.07%, sys=6.23%, ctx=1652, 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=183789: Sun Nov 16 20:09:13 2025 read: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32044msec) clat (usec): min=95, max=221835, avg=45806.95, stdev=29260.75 lat (usec): min=95, max=221836, avg=45808.41, stdev=29260.68 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 178], 10.00th=[ 15533], 20.00th=[ 23200], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 43254], 60.00th=[ 49021], | 70.00th=[ 56361], 80.00th=[ 66323], 90.00th=[ 79168], 95.00th=[ 93848], | 99.00th=[147850], 99.50th=[173016], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 61, max= 350, per=26.13%, avg=195.18, stdev=69.61, samples=62 iops : min= 3, max= 21, avg=11.45, stdev= 4.38, samples=62 write: IOPS=11, BW=188KiB/s (193kB/s)(6032KiB/32044msec); 0 zone resets clat (usec): min=1344, max=172938, avg=37406.00, stdev=33338.08 lat (usec): min=1346, max=172941, avg=37438.85, stdev=33388.60 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1663], 10.00th=[ 1778], 20.00th=[ 5800], | 30.00th=[ 14353], 40.00th=[ 21365], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[147850], 99.50th=[168821], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 381, per=23.63%, avg=185.74, stdev=72.75, samples=62 iops : min= 1, max= 23, avg=10.85, stdev= 4.57, samples=62 lat (usec) : 100=0.13%, 250=3.52%, 500=0.13% lat (msec) : 2=6.51%, 4=2.08%, 10=3.91%, 20=10.42%, 50=38.93% lat (msec) : 100=30.21%, 250=4.17% cpu : usr=0.11%, sys=6.43%, ctx=1697, 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=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=183790: Sun Nov 16 20:09:13 2025 read: IOPS=12, BW=199KiB/s (204kB/s)(6032KiB/30321msec) clat (usec): min=124, max=261284, avg=43467.58, stdev=31189.46 lat (usec): min=125, max=261285, avg=43470.49, stdev=31189.62 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 161], 10.00th=[ 229], 20.00th=[ 21890], | 30.00th=[ 28443], 40.00th=[ 32637], 50.00th=[ 41157], 60.00th=[ 46924], | 70.00th=[ 52167], 80.00th=[ 64226], 90.00th=[ 80217], 95.00th=[ 91751], | 99.00th=[162530], 99.50th=[235930], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 31, max= 351, per=26.29%, avg=196.41, stdev=67.99, samples=59 iops : min= 1, max= 21, avg=11.51, stdev= 4.28, samples=59 write: IOPS=12, BW=206KiB/s (211kB/s)(6256KiB/30321msec); 0 zone resets clat (usec): min=1271, max=215599, avg=35569.64, stdev=35801.78 lat (usec): min=1273, max=215600, avg=35571.71, stdev=35801.74 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1614], 10.00th=[ 1778], 20.00th=[ 5538], | 30.00th=[ 11994], 40.00th=[ 17695], 50.00th=[ 25297], 60.00th=[ 33424], | 70.00th=[ 44827], 80.00th=[ 59507], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[166724], 99.50th=[187696], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 381, per=25.87%, avg=203.31, stdev=82.09, samples=59 iops : min= 1, max= 23, avg=11.97, stdev= 5.22, samples=59 lat (usec) : 250=5.08%, 500=0.26% lat (msec) : 2=6.64%, 4=2.99%, 10=3.91%, 20=12.11%, 50=39.97% lat (msec) : 100=24.22%, 250=4.69%, 500=0.13% cpu : usr=0.09%, sys=6.04%, ctx=1598, 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=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=747KiB/s (765kB/s), 182KiB/s-199KiB/s (187kB/s-204kB/s), io=23.4MiB (24.5MB), run=30321-32044msec WRITE: bw=786KiB/s (805kB/s), 188KiB/s-208KiB/s (193kB/s-213kB/s), io=24.6MiB (25.8MB), run=30321-32044msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183782: Sun Nov 16 20:09:23 2025 read: IOPS=8, BW=140KiB/s (143kB/s)(5920KiB/42267msec) clat (msec): min=8, max=273, avg=41.46, stdev=35.42 lat (msec): min=8, max=273, avg=41.46, stdev=35.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 95], 95.00th=[ 117], | 99.00th=[ 161], 99.50th=[ 178], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 30, max= 434, per=25.25%, avg=142.68, stdev=93.29, samples=81 iops : min= 1, max= 27, avg= 8.14, stdev= 5.89, samples=81 write: IOPS=9, BW=151KiB/s (154kB/s)(6368KiB/42267msec); 0 zone resets clat (msec): min=12, max=269, avg=67.25, stdev=43.18 lat (msec): min=12, max=269, avg=67.26, stdev=43.19 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 81], 80.00th=[ 97], 90.00th=[ 129], 95.00th=[ 159], | 99.00th=[ 197], 99.50th=[ 239], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 446, per=25.22%, avg=150.05, stdev=85.61, samples=83 iops : min= 1, max= 27, avg= 8.59, stdev= 5.43, samples=83 lat (msec) : 10=1.43%, 20=14.71%, 50=43.23%, 100=26.69%, 250=13.67% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.78%, ctx=1220, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183783: Sun Nov 16 20:09:23 2025 read: IOPS=8, BW=136KiB/s (139kB/s)(5744KiB/42341msec) clat (msec): min=6, max=255, avg=42.64, stdev=38.44 lat (msec): min=6, max=255, avg=42.65, stdev=38.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 65], 90.00th=[ 100], 95.00th=[ 130], | 99.00th=[ 186], 99.50th=[ 197], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 466, per=24.06%, avg=135.95, stdev=90.40, samples=82 iops : min= 1, max= 29, avg= 7.71, stdev= 5.74, samples=82 write: IOPS=9, BW=155KiB/s (158kB/s)(6544KiB/42341msec); 0 zone resets clat (msec): min=11, max=294, avg=65.67, stdev=43.69 lat (msec): min=11, max=294, avg=65.68, stdev=43.69 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 75], 80.00th=[ 95], 90.00th=[ 131], 95.00th=[ 155], | 99.00th=[ 224], 99.50th=[ 241], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 412, per=25.73%, avg=153.08, stdev=87.90, samples=83 iops : min= 1, max= 25, avg= 8.78, stdev= 5.56, samples=83 lat (msec) : 10=2.08%, 20=13.54%, 50=46.09%, 100=24.48%, 250=13.54% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=1.85%, ctx=1166, 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=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=183784: Sun Nov 16 20:09:23 2025 read: IOPS=9, BW=149KiB/s (152kB/s)(6256KiB/42061msec) clat (msec): min=7, max=217, avg=42.14, stdev=37.23 lat (msec): min=7, max=217, avg=42.14, stdev=37.23 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 94], 95.00th=[ 122], | 99.00th=[ 178], 99.50th=[ 194], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 538, per=26.39%, avg=149.11, stdev=106.96, samples=82 iops : min= 1, max= 33, avg= 8.55, stdev= 6.76, samples=82 write: IOPS=8, BW=143KiB/s (147kB/s)(6032KiB/42061msec); 0 zone resets clat (msec): min=11, max=241, avg=67.41, stdev=42.15 lat (msec): min=11, max=241, avg=67.43, stdev=42.15 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 78], 80.00th=[ 99], 90.00th=[ 126], 95.00th=[ 161], | 99.00th=[ 199], 99.50th=[ 224], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 30, max= 446, per=24.00%, avg=142.83, stdev=80.31, samples=81 iops : min= 1, max= 27, avg= 8.15, stdev= 5.08, samples=81 lat (msec) : 10=1.82%, 20=16.54%, 50=40.36%, 100=27.21%, 250=14.06% cpu : usr=0.06%, sys=1.90%, ctx=1180, 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=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=183785: Sun Nov 16 20:09:23 2025 read: IOPS=8, BW=144KiB/s (147kB/s)(6032KiB/41959msec) clat (msec): min=7, max=239, avg=42.96, stdev=38.38 lat (msec): min=7, max=239, avg=42.96, stdev=38.38 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 64], 90.00th=[ 95], 95.00th=[ 140], | 99.00th=[ 182], 99.50th=[ 197], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 440, per=25.09%, avg=141.78, stdev=92.66, samples=82 iops : min= 1, max= 27, avg= 8.07, stdev= 5.86, samples=82 write: IOPS=9, BW=149KiB/s (153kB/s)(6256KiB/41959msec); 0 zone resets clat (msec): min=15, max=347, avg=65.64, stdev=43.24 lat (msec): min=15, max=347, avg=65.64, stdev=43.24 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 74], 80.00th=[ 97], 90.00th=[ 128], 95.00th=[ 153], | 99.00th=[ 199], 99.50th=[ 284], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 403, per=24.85%, avg=147.85, stdev=85.71, samples=82 iops : min= 1, max= 25, avg= 8.46, stdev= 5.45, samples=82 lat (msec) : 10=0.91%, 20=14.45%, 50=45.96%, 100=24.61%, 250=13.80% lat (msec) : 500=0.26% cpu : usr=0.08%, sys=1.83%, ctx=1141, 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=566KiB/s (579kB/s), 136KiB/s-149KiB/s (139kB/s-152kB/s), io=23.4MiB (24.5MB), run=41959-42341msec WRITE: bw=595KiB/s (609kB/s), 143KiB/s-155KiB/s (147kB/s-158kB/s), io=24.6MiB (25.8MB), run=41959-42341msec 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=183802: Sun Nov 16 20:09:38 2025 read: IOPS=1, BW=1746KiB/s (1788kB/s)(7168KiB/4105msec) clat (usec): min=644, max=605095, avg=258527.96, stdev=228213.66 lat (usec): min=645, max=605098, avg=258529.50, stdev=228214.23 clat percentiles (usec): | 1.00th=[ 644], 5.00th=[ 644], 10.00th=[ 644], 20.00th=[ 23987], | 30.00th=[191890], 40.00th=[191890], 50.00th=[198181], 60.00th=[283116], | 70.00th=[283116], 80.00th=[509608], 90.00th=[608175], 95.00th=[608175], | 99.00th=[608175], 99.50th=[608175], 99.90th=[608175], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 1965, max= 3968, per=61.63%, avg=2491.75, stdev=984.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1247KiB/s (1277kB/s)(5120KiB/4105msec); 0 zone resets clat (msec): min=128, max=1146, avg=400.11, stdev=428.20 lat (msec): min=128, max=1146, avg=400.19, stdev=428.21 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 2007, max= 4023, per=53.27%, avg=3015.00, stdev=1425.53, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=8.09%, ctx=104, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183803: Sun Nov 16 20:09:38 2025 read: IOPS=0, BW=429KiB/s (440kB/s)(2048KiB/4769msec) clat (msec): min=8, max=217, avg=113.03, stdev=147.98 lat (msec): min=8, max=217, avg=113.03, stdev=147.98 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 9], 10.00th=[ 9], 20.00th=[ 9], | 30.00th=[ 9], 40.00th=[ 9], 50.00th=[ 9], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 218], 90.00th=[ 218], 95.00th=[ 218], | 99.00th=[ 218], 99.50th=[ 218], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 1471, max= 2027, per=43.26%, avg=1749.00, stdev=393.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2147KiB/s (2199kB/s)(10.0MiB/4769msec); 0 zone resets clat (msec): min=198, max=805, avg=446.27, stdev=188.67 lat (msec): min=198, max=805, avg=446.40, stdev=188.66 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 284], | 30.00th=[ 359], 40.00th=[ 372], 50.00th=[ 388], 60.00th=[ 422], | 70.00th=[ 447], 80.00th=[ 451], 90.00th=[ 743], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1471, max= 4039, per=39.02%, avg=2208.29, stdev=830.38, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 10=8.33%, 250=16.67%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=12.00%, ctx=84, 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=183804: Sun Nov 16 20:09:38 2025 read: IOPS=1, BW=1213KiB/s (1242kB/s)(6144KiB/5065msec) clat (msec): min=162, max=315, avg=244.85, stdev=68.24 lat (msec): min=162, max=315, avg=244.85, stdev=68.24 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 296], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 1939, max= 4055, per=61.98%, avg=2506.00, stdev=1033.29, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1213KiB/s (1242kB/s)(6144KiB/5065msec); 0 zone resets clat (msec): min=247, max=945, avg=551.85, stdev=293.76 lat (msec): min=247, max=945, avg=552.66, stdev=293.46 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 885], 80.00th=[ 885], 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= 1939, max= 3968, per=43.65%, avg=2470.75, stdev=998.61, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=33.33%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=10.92%, ctx=149, 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=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=183805: Sun Nov 16 20:09:38 2025 read: IOPS=1, BW=1576KiB/s (1614kB/s)(5120KiB/3248msec) clat (usec): min=617, max=504348, avg=218926.73, stdev=185156.12 lat (usec): min=619, max=504349, avg=218927.91, stdev=185155.99 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[ 619], 10.00th=[ 619], 20.00th=[ 619], | 30.00th=[132645], 40.00th=[132645], 50.00th=[212861], 60.00th=[212861], | 70.00th=[244319], 80.00th=[244319], 90.00th=[505414], 95.00th=[505414], | 99.00th=[505414], 99.50th=[505414], 99.90th=[505414], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 1965, max= 4015, per=66.02%, avg=2669.00, stdev=1166.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=2, BW=2207KiB/s (2260kB/s)(7168KiB/3248msec); 0 zone resets clat (msec): min=68, max=576, avg=283.53, stdev=154.81 lat (msec): min=68, max=576, avg=283.62, stdev=154.81 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 186], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 326], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1523, max= 3968, per=42.07%, avg=2381.25, stdev=1083.19, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=16.94%, ctx=111, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4043KiB/s (4140kB/s), 429KiB/s-1746KiB/s (440kB/s-1788kB/s), io=20.0MiB (20.0MB), run=3248-5065msec WRITE: bw=5661KiB/s (5797kB/s), 1213KiB/s-2207KiB/s (1242kB/s-2260kB/s), io=28.0MiB (29.4MB), run=3248-5065msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183806: Sun Nov 16 20:09:38 2025 read: IOPS=1, BW=1334KiB/s (1366kB/s)(7168KiB/5375msec) clat (msec): min=60, max=1318, avg=522.39, stdev=483.62 lat (msec): min=60, max=1318, avg=522.39, stdev=483.62 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 64], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 592], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 919], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1984, max= 2048, per=53.02%, avg=2020.00, stdev=22.89, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 write: IOPS=0, BW=953KiB/s (975kB/s)(5120KiB/5375msec); 0 zone resets clat (msec): min=41, max=444, avg=273.39, stdev=192.59 lat (msec): min=41, max=444, avg=273.47, stdev=192.60 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 42], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1954, max= 4063, per=50.32%, avg=2684.00, stdev=1194.94, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=8.33%, 100=25.00%, 250=8.33%, 500=25.00%, 750=16.67% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.60%, ctx=71, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183807: Sun Nov 16 20:09:38 2025 read: IOPS=0, BW=404KiB/s (413kB/s)(2048KiB/5073msec) clat (msec): min=126, max=245, avg=185.63, stdev=84.09 lat (msec): min=126, max=245, avg=185.63, stdev=84.08 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 1517, max= 1984, per=45.94%, avg=1750.50, stdev=330.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2019KiB/s (2067kB/s)(10.0MiB/5073msec); 0 zone resets clat (msec): min=157, max=838, avg=446.34, stdev=227.14 lat (msec): min=157, max=839, avg=446.53, stdev=227.17 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 165], | 30.00th=[ 292], 40.00th=[ 313], 50.00th=[ 443], 60.00th=[ 456], | 70.00th=[ 518], 80.00th=[ 531], 90.00th=[ 751], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1892, max= 4071, per=48.35%, avg=2578.86, stdev=1001.57, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=6.49%, ctx=129, 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=183809: Sun Nov 16 20:09:38 2025 read: IOPS=1, BW=1234KiB/s (1263kB/s)(6144KiB/4980msec) clat (msec): min=109, max=473, avg=283.53, stdev=154.13 lat (msec): min=109, max=473, avg=283.54, stdev=154.13 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 239], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1892, max= 2027, per=51.78%, avg=1972.80, stdev=52.71, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1234KiB/s (1263kB/s)(6144KiB/4980msec); 0 zone resets clat (msec): min=237, max=780, avg=520.41, stdev=198.47 lat (msec): min=237, max=781, avg=520.95, stdev=198.52 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 535], | 70.00th=[ 701], 80.00th=[ 701], 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= 1383, max= 2048, per=35.56%, avg=1896.67, stdev=257.72, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=2.75%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183810: Sun Nov 16 20:09:38 2025 read: IOPS=0, BW=1001KiB/s (1025kB/s)(5120KiB/5117msec) clat (msec): min=55, max=903, avg=314.52, stdev=352.86 lat (msec): min=55, max=903, avg=314.52, stdev=352.86 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 131], 60.00th=[ 131], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 3968, max= 4015, per=100.00%, avg=3991.50, stdev=33.23, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1401KiB/s (1434kB/s)(7168KiB/5117msec); 0 zone resets clat (msec): min=108, max=907, avg=447.16, stdev=248.06 lat (msec): min=108, max=907, avg=447.27, stdev=248.05 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 535], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1892, max= 2048, per=37.56%, avg=2003.40, stdev=63.42, 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=8.33%, 1000=16.67% cpu : usr=0.00%, sys=2.97%, ctx=98, 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=3810KiB/s (3902kB/s), 404KiB/s-1334KiB/s (413kB/s-1366kB/s), io=20.0MiB (20.0MB), run=4980-5375msec WRITE: bw=5334KiB/s (5462kB/s), 953KiB/s-2019KiB/s (975kB/s-2067kB/s), io=28.0MiB (29.4MB), run=4980-5375msec 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=183816: Sun Nov 16 20:09:53 2025 read: IOPS=2, BW=11.4MiB/s (11.9MB/s)(12.0MiB/1057msec) clat (msec): min=171, max=499, avg=329.83, stdev=164.27 lat (msec): min=171, max=499, avg=329.83, stdev=164.27 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min=13234, max=13234, per=100.00%, avg=13234.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=11.36%, ctx=48, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183817: Sun Nov 16 20:09:53 2025 read: IOPS=0, BW=1980KiB/s (2027kB/s)(4096KiB/2069msec) clat (nsec): min=840862k, max=840862k, avg=840861500.00, stdev= 0.00 lat (nsec): min=840865k, max=840865k, avg=840864614.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3959KiB/s (4054kB/s)(8192KiB/2069msec); 0 zone resets clat (msec): min=577, max=590, avg=584.00, stdev= 8.74 lat (msec): min=578, max=590, avg=584.58, stdev= 8.69 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 8094, max= 8094, per=74.75%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.14%, ctx=47, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183818: Sun Nov 16 20:09:53 2025 write: IOPS=0, BW=4061KiB/s (4158kB/s)(12.0MiB/3026msec); 0 zone resets clat (msec): min=488, max=1543, avg=990.92, stdev=529.07 lat (msec): min=489, max=1543, avg=991.38, stdev=529.06 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7049, max= 8094, per=69.93%, avg=7571.50, stdev=738.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.47%, ctx=60, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=183819: Sun Nov 16 20:09:53 2025 write: IOPS=1, BW=4556KiB/s (4666kB/s)(12.0MiB/2697msec); 0 zone resets clat (msec): min=305, max=1785, avg=861.78, stdev=805.28 lat (msec): min=305, max=1802, avg=873.33, stdev=811.60 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7557, max= 8094, per=72.27%, avg=7825.50, stdev=379.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.49%, ctx=53, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7919KiB/s (8109kB/s), 1980KiB/s-11.4MiB/s (2027kB/s-11.9MB/s), io=16.0MiB (16.8MB), run=1057-2069msec WRITE: bw=10.6MiB/s (11.1MB/s), 3959KiB/s-4556KiB/s (4054kB/s-4666kB/s), io=32.0MiB (33.6MB), run=2069-3026msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183821: Sun Nov 16 20:09:54 2025 read: IOPS=1, BW=4867KiB/s (4983kB/s)(12.0MiB/2525msec) clat (msec): min=789, max=908, avg=841.27, stdev=61.00 lat (msec): min=789, max=908, avg=841.27, stdev=61.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8110, max= 8175, per=100.00%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=16.05%, ctx=356, 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=183822: Sun Nov 16 20:09:54 2025 read: IOPS=0, BW=1330KiB/s (1362kB/s)(4096KiB/3080msec) clat (nsec): min=1377.2M, max=1377.2M, avg=1377210371.00, stdev= 0.00 lat (nsec): min=1377.2M, max=1377.2M, avg=1377213383.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1385], 5.00th=[ 1385], 10.00th=[ 1385], 20.00th=[ 1385], | 30.00th=[ 1385], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] 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=2660KiB/s (2724kB/s)(8192KiB/3080msec); 0 zone resets clat (msec): min=316, max=1381, avg=849.21, stdev=753.34 lat (msec): min=316, max=1382, avg=849.61, stdev=753.44 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.30%, ctx=120, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183823: Sun Nov 16 20:09:54 2025 write: IOPS=0, BW=3817KiB/s (3909kB/s)(12.0MiB/3219msec); 0 zone resets clat (msec): min=301, max=1666, avg=1071.87, stdev=699.49 lat (msec): min=301, max=1667, avg=1072.76, stdev=699.68 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7984, max= 8143, per=79.22%, avg=8063.50, stdev=112.43, 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=6.81%, ctx=103, 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=183824: Sun Nov 16 20:09:54 2025 write: IOPS=1, BW=4378KiB/s (4483kB/s)(12.0MiB/2807msec); 0 zone resets clat (msec): min=493, max=1716, avg=935.01, stdev=678.91 lat (msec): min=493, max=1717, avg=935.37, stdev=678.99 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7922, max= 8175, per=79.07%, avg=8048.50, stdev=178.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.74%, ctx=50, 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=5319KiB/s (5447kB/s), 1330KiB/s-4867KiB/s (1362kB/s-4983kB/s), io=16.0MiB (16.8MB), run=2525-3080msec WRITE: bw=9.94MiB/s (10.4MB/s), 2660KiB/s-4378KiB/s (2724kB/s-4483kB/s), io=32.0MiB (33.6MB), run=2807-3219msec