== sanity test 398b: DIO and buffer IO race ============== 06:04:39 (1777025079) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.31381 s, 21.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=154795: Fri Apr 24 06:05:27 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5992KiB/40310msec) clat (usec): min=32, max=536901, avg=13767.08, stdev=16317.32 lat (usec): min=33, max=536902, avg=13767.73, stdev=16317.34 clat percentiles (usec): | 1.00th=[ 78], 5.00th=[ 121], 10.00th=[ 6128], 20.00th=[ 7570], | 30.00th=[ 8717], 40.00th=[ 10028], 50.00th=[ 11469], 60.00th=[ 13566], | 70.00th=[ 15926], 80.00th=[ 18482], 90.00th=[ 22938], 95.00th=[ 27395], | 99.00th=[ 40109], 99.50th=[ 56361], 99.90th=[156238], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 32, max= 256, per=25.39%, avg=149.03, stdev=37.79, samples=80 iops : min= 8, max= 64, avg=36.91, stdev= 9.44, samples=80 write: IOPS=39, BW=156KiB/s (160kB/s)(6296KiB/40310msec); 0 zone resets clat (usec): min=725, max=103664, avg=12458.31, stdev=10576.37 lat (usec): min=726, max=103664, avg=12459.12, stdev=10576.37 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 2180], 10.00th=[ 2671], 20.00th=[ 3228], | 30.00th=[ 4883], 40.00th=[ 7832], 50.00th=[ 10159], 60.00th=[ 12518], | 70.00th=[ 15401], 80.00th=[ 19792], 90.00th=[ 25822], 95.00th=[ 30540], | 99.00th=[ 45351], 99.50th=[ 55837], 99.90th=[ 99091], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 12, max= 248, per=25.48%, avg=156.46, stdev=43.38, samples=80 iops : min= 3, max= 62, avg=38.78, stdev=10.78, samples=80 lat (usec) : 50=0.10%, 100=1.17%, 250=1.50%, 750=0.07%, 1000=0.16% lat (msec) : 2=1.79%, 4=11.04%, 10=28.65%, 20=37.60%, 50=17.22% lat (msec) : 100=0.62%, 250=0.07%, 750=0.03% cpu : usr=0.09%, sys=27.06%, ctx=8296, 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=154796: Fri Apr 24 06:05:27 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(5940KiB/40893msec) clat (usec): min=28, max=505465, avg=14225.41, stdev=15694.53 lat (usec): min=28, max=505466, avg=14228.23, stdev=15694.89 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 258], 10.00th=[ 6259], 20.00th=[ 7963], | 30.00th=[ 9372], 40.00th=[ 10552], 50.00th=[ 12125], 60.00th=[ 13960], | 70.00th=[ 16057], 80.00th=[ 19268], 90.00th=[ 23462], 95.00th=[ 28443], | 99.00th=[ 45876], 99.50th=[ 61604], 99.90th=[124257], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 6, max= 216, per=24.63%, avg=144.57, stdev=36.64, samples=81 iops : min= 1, max= 54, avg=35.80, stdev= 9.20, samples=81 write: IOPS=38, BW=155KiB/s (159kB/s)(6348KiB/40893msec); 0 zone resets clat (usec): min=664, max=86256, avg=12402.38, stdev=10703.67 lat (usec): min=664, max=86257, avg=12403.26, stdev=10703.62 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 2008], 10.00th=[ 2442], 20.00th=[ 2933], | 30.00th=[ 3949], 40.00th=[ 7570], 50.00th=[ 9896], 60.00th=[12387], | 70.00th=[16581], 80.00th=[20579], 90.00th=[25822], 95.00th=[31589], | 99.00th=[47449], 99.50th=[59507], 99.90th=[85459], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 6, max= 280, per=25.08%, avg=153.98, stdev=45.31, samples=81 iops : min= 1, max= 70, avg=38.15, stdev=11.32, samples=81 lat (usec) : 50=0.20%, 100=1.11%, 250=1.11%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.52% lat (msec) : 2=1.86%, 4=13.38%, 10=25.23%, 20=36.75%, 50=18.98% lat (msec) : 100=0.62%, 250=0.07%, 750=0.03% cpu : usr=0.14%, sys=26.75%, ctx=8284, 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=154797: Fri Apr 24 06:05:27 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(6028KiB/40724msec) clat (usec): min=29, max=88638, avg=13638.40, stdev=8226.32 lat (usec): min=30, max=88639, avg=13639.07, stdev=8226.37 clat percentiles (usec): | 1.00th=[ 78], 5.00th=[ 135], 10.00th=[ 6587], 20.00th=[ 7898], | 30.00th=[ 9110], 40.00th=[10290], 50.00th=[11994], 60.00th=[14091], | 70.00th=[16581], 80.00th=[19006], 90.00th=[23200], 95.00th=[26608], | 99.00th=[39584], 99.50th=[50070], 99.90th=[85459], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 48, max= 239, per=25.57%, avg=150.11, stdev=40.81, samples=80 iops : min= 12, max= 59, avg=37.19, stdev=10.18, samples=80 write: IOPS=38, BW=154KiB/s (157kB/s)(6260KiB/40724msec); 0 zone resets clat (usec): min=651, max=511074, avg=12831.04, stdev=16753.04 lat (usec): min=652, max=511076, avg=12831.89, stdev=16753.09 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 2147], 10.00th=[ 2507], 20.00th=[ 3097], | 30.00th=[ 4424], 40.00th=[ 7701], 50.00th=[ 10028], 60.00th=[ 12518], | 70.00th=[ 15664], 80.00th=[ 20317], 90.00th=[ 25560], 95.00th=[ 32113], | 99.00th=[ 49546], 99.50th=[ 67634], 99.90th=[117965], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 19, max= 232, per=25.05%, avg=153.81, stdev=40.55, samples=81 iops : min= 4, max= 58, avg=38.11, stdev=10.15, samples=81 lat (usec) : 50=0.13%, 100=1.14%, 250=1.24%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=1.63%, 4=11.95%, 10=27.64%, 20=36.91%, 50=18.23% lat (msec) : 100=0.59%, 250=0.07%, 750=0.03% cpu : usr=0.08%, sys=26.97%, ctx=8503, 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=154798: Fri Apr 24 06:05:27 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(6052KiB/40880msec) clat (usec): min=27, max=79927, avg=13855.95, stdev=8580.86 lat (usec): min=27, max=79927, avg=13856.61, stdev=8580.88 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 4113], 10.00th=[ 6456], 20.00th=[ 8029], | 30.00th=[ 9241], 40.00th=[10421], 50.00th=[12125], 60.00th=[14091], | 70.00th=[16188], 80.00th=[18744], 90.00th=[23200], 95.00th=[27919], | 99.00th=[45351], 99.50th=[53216], 99.90th=[78119], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 56, max= 231, per=25.49%, avg=149.61, stdev=38.58, samples=80 iops : min= 14, max= 57, avg=37.06, stdev= 9.61, samples=80 write: IOPS=38, BW=153KiB/s (156kB/s)(6236KiB/40880msec); 0 zone resets clat (usec): min=661, max=514022, avg=12718.78, stdev=16749.83 lat (usec): min=662, max=514024, avg=12719.60, stdev=16749.86 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2057], 10.00th=[ 2507], 20.00th=[ 3097], | 30.00th=[ 4424], 40.00th=[ 8094], 50.00th=[ 10290], 60.00th=[ 12387], | 70.00th=[ 15270], 80.00th=[ 19530], 90.00th=[ 25297], 95.00th=[ 30540], | 99.00th=[ 52167], 99.50th=[ 59507], 99.90th=[121111], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 12, max= 255, per=24.79%, avg=152.23, stdev=38.04, samples=81 iops : min= 3, max= 63, avg=37.73, stdev= 9.50, samples=81 lat (usec) : 50=0.10%, 100=0.98%, 250=1.01%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=1.92%, 4=12.21%, 10=26.24%, 20=39.49%, 50=16.54% lat (msec) : 100=0.88%, 250=0.07%, 750=0.03% cpu : usr=0.14%, sys=27.19%, ctx=8572, 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=587KiB/s (601kB/s), 145KiB/s-149KiB/s (149kB/s-152kB/s), io=23.4MiB (24.6MB), run=40310-40893msec WRITE: bw=615KiB/s (630kB/s), 153KiB/s-156KiB/s (156kB/s-160kB/s), io=24.6MiB (25.7MB), run=40310-40893msec fio: pid=154791, err=5/file:backend.c:481, func=full resid, error=Input/output error fio: pid=154790, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=154790: Fri Apr 24 06:05:45 2026 read: IOPS=18, BW=75.2KiB/s (77.1kB/s)(3472KiB/46141msec) clat (msec): min=2, max=546, avg=16.59, stdev=22.24 lat (msec): min=2, max=546, avg=16.59, stdev=22.24 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 24], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 65], 99.50th=[ 80], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 15, max= 256, per=23.09%, avg=74.82, stdev=39.92, samples=90 iops : min= 3, max= 64, avg=18.42, stdev=10.07, samples=90 write: IOPS=19, BW=79.1KiB/s (81.0kB/s)(3652KiB/46141msec); 0 zone resets clat (msec): min=11, max=135, avg=34.61, stdev=16.26 lat (msec): min=11, max=135, avg=34.61, stdev=16.26 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 36], | 70.00th=[ 40], 80.00th=[ 45], 90.00th=[ 54], 95.00th=[ 64], | 99.00th=[ 99], 99.50th=[ 109], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 39, max= 192, per=23.46%, avg=79.53, stdev=35.01, samples=90 iops : min= 9, max= 48, avg=19.60, stdev= 8.87, samples=90 lat (msec) : 4=4.71%, 10=15.04%, 20=24.24%, 50=47.98%, 100=7.52% lat (msec) : 250=0.39%, 750=0.06% cpu : usr=0.06%, sys=9.07%, ctx=2914, 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=869,913,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=154791: Fri Apr 24 06:05:45 2026 read: IOPS=18, BW=72.3KiB/s (74.1kB/s)(3332KiB/46073msec) clat (msec): min=2, max=515, avg=16.42, stdev=21.37 lat (msec): min=2, max=515, avg=16.42, stdev=21.37 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 24], 90.00th=[ 33], 95.00th=[ 42], | 99.00th=[ 65], 99.50th=[ 78], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 200, per=22.38%, avg=72.51, stdev=37.13, samples=90 iops : min= 1, max= 50, avg=17.84, stdev= 9.37, samples=90 write: IOPS=19, BW=79.0KiB/s (80.9kB/s)(3640KiB/46073msec); 0 zone resets clat (msec): min=11, max=162, avg=35.44, stdev=16.86 lat (msec): min=11, max=162, avg=35.44, stdev=16.86 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 37], | 70.00th=[ 41], 80.00th=[ 46], 90.00th=[ 55], 95.00th=[ 66], | 99.00th=[ 94], 99.50th=[ 113], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 23, max= 192, per=23.36%, avg=79.18, stdev=34.34, samples=90 iops : min= 5, max= 48, avg=19.51, stdev= 8.73, samples=90 lat (msec) : 4=3.50%, 10=15.54%, 20=23.85%, 50=48.74%, 100=7.91% lat (msec) : 250=0.34%, 750=0.06% cpu : usr=0.06%, sys=9.10%, ctx=2913, majf=0, minf=20 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=834,910,0,0 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=154792: Fri Apr 24 06:05:45 2026 read: IOPS=25, BW=104KiB/s (106kB/s)(6028KiB/58241msec) clat (msec): min=2, max=100, avg=10.69, stdev=11.06 lat (msec): min=2, max=100, avg=10.69, stdev=11.06 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 5], 50.00th=[ 6], 60.00th=[ 9], | 70.00th=[ 12], 80.00th=[ 17], 90.00th=[ 26], 95.00th=[ 34], | 99.00th=[ 51], 99.50th=[ 59], 99.90th=[ 95], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 24, max= 328, per=32.26%, avg=104.52, stdev=68.97, samples=115 iops : min= 6, max= 82, avg=25.90, stdev=17.37, samples=115 write: IOPS=26, BW=107KiB/s (110kB/s)(6260KiB/58241msec); 0 zone resets clat (msec): min=9, max=522, avg=26.82, stdev=20.68 lat (msec): min=9, max=522, avg=26.83, stdev=20.68 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 39], 90.00th=[ 48], 95.00th=[ 58], | 99.00th=[ 86], 99.50th=[ 105], 99.90th=[ 157], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 39, max= 248, per=32.00%, avg=108.49, stdev=66.31, samples=115 iops : min= 9, max= 62, avg=26.90, stdev=16.72, samples=115 lat (msec) : 4=18.42%, 10=13.83%, 20=34.44%, 50=28.48%, 100=4.52% lat (msec) : 250=0.26%, 750=0.03% cpu : usr=0.11%, sys=9.19%, ctx=5590, 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=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=154793: Fri Apr 24 06:05:45 2026 read: IOPS=25, BW=104KiB/s (106kB/s)(6052KiB/58237msec) clat (msec): min=2, max=128, avg=11.12, stdev=12.38 lat (msec): min=2, max=128, avg=11.12, stdev=12.38 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 5], 50.00th=[ 6], 60.00th=[ 9], | 70.00th=[ 12], 80.00th=[ 17], 90.00th=[ 27], 95.00th=[ 37], | 99.00th=[ 55], 99.50th=[ 65], 99.90th=[ 104], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 15, max= 328, per=32.39%, avg=104.94, stdev=69.23, samples=115 iops : min= 3, max= 82, avg=26.01, stdev=17.45, samples=115 write: IOPS=26, BW=107KiB/s (110kB/s)(6236KiB/58237msec); 0 zone resets clat (msec): min=10, max=519, avg=26.46, stdev=19.58 lat (msec): min=10, max=519, avg=26.46, stdev=19.58 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 39], 90.00th=[ 47], 95.00th=[ 55], | 99.00th=[ 81], 99.50th=[ 99], 99.90th=[ 138], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 31, max= 240, per=31.88%, avg=108.07, stdev=63.88, samples=115 iops : min= 7, max= 60, avg=26.79, stdev=16.11, samples=115 lat (msec) : 4=18.59%, 10=13.38%, 20=34.15%, 50=29.36%, 100=4.30% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.11%, sys=9.21%, ctx=5654, 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=324KiB/s (332kB/s), 72.3KiB/s-104KiB/s (74.1kB/s-106kB/s), io=18.4MiB (19.3MB), run=46073-58241msec WRITE: bw=340KiB/s (348kB/s), 79.0KiB/s-107KiB/s (80.9kB/s-110kB/s), io=19.3MiB (20.3MB), run=46073-58241msec 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=154823: Fri Apr 24 06:06:00 2026 read: IOPS=36, BW=584KiB/s (598kB/s)(5920KiB/10143msec) clat (usec): min=30, max=71972, avg=13724.61, stdev=7821.65 lat (usec): min=31, max=71973, avg=13725.29, stdev=7821.52 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 99], 10.00th=[ 126], 20.00th=[ 9110], | 30.00th=[10290], 40.00th=[11731], 50.00th=[13042], 60.00th=[14615], | 70.00th=[17171], 80.00th=[19792], 90.00th=[22676], 95.00th=[26346], | 99.00th=[31327], 99.50th=[38536], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 415, max= 768, per=25.65%, avg=583.20, stdev=96.21, samples=20 iops : min= 25, max= 48, avg=35.95, stdev= 6.12, samples=20 write: IOPS=39, BW=628KiB/s (643kB/s)(6368KiB/10143msec); 0 zone resets clat (usec): min=1338, max=65780, avg=12643.44, stdev=9708.57 lat (usec): min=1339, max=65781, avg=12644.54, stdev=9708.60 clat percentiles (usec): | 1.00th=[ 2073], 5.00th=[ 3261], 10.00th=[ 3720], 20.00th=[ 4424], | 30.00th=[ 5407], 40.00th=[ 8029], 50.00th=[10683], 60.00th=[12649], | 70.00th=[15401], 80.00th=[19268], 90.00th=[24773], 95.00th=[31589], | 99.00th=[46924], 99.50th=[58459], 99.90th=[65799], 99.95th=[65799], | 99.99th=[65799] bw ( KiB/s): min= 415, max= 800, per=26.23%, avg=627.60, stdev=124.16, samples=20 iops : min= 25, max= 50, avg=38.70, stdev= 7.78, samples=20 lat (usec) : 50=0.39%, 100=2.08%, 250=2.73%, 500=0.13% lat (msec) : 2=0.39%, 4=6.64%, 10=26.04%, 20=42.58%, 50=18.62% lat (msec) : 100=0.39% cpu : usr=0.10%, sys=30.73%, ctx=2576, 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=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=154825: Fri Apr 24 06:06:00 2026 read: IOPS=34, BW=546KiB/s (559kB/s)(5744KiB/10529msec) clat (usec): min=48, max=63262, avg=14343.08, stdev=8412.11 lat (usec): min=49, max=63263, avg=14343.86, stdev=8412.29 clat percentiles (usec): | 1.00th=[ 67], 5.00th=[ 108], 10.00th=[ 5604], 20.00th=[ 9110], | 30.00th=[10683], 40.00th=[12125], 50.00th=[13566], 60.00th=[15270], | 70.00th=[16909], 80.00th=[19268], 90.00th=[23200], 95.00th=[27132], | 99.00th=[51119], 99.50th=[55837], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 262, max= 736, per=23.47%, avg=533.60, stdev=130.41, samples=20 iops : min= 16, max= 46, avg=32.85, stdev= 8.13, samples=20 write: IOPS=38, BW=622KiB/s (636kB/s)(6544KiB/10529msec); 0 zone resets clat (usec): min=1494, max=117113, avg=13003.30, stdev=10863.46 lat (usec): min=1496, max=117115, avg=13009.34, stdev=10859.75 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 16], 80.00th=[ 20], 90.00th=[ 25], 95.00th=[ 32], | 99.00th=[ 46], 99.50th=[ 54], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 351, max= 832, per=25.06%, avg=599.70, stdev=131.32, samples=20 iops : min= 21, max= 52, avg=36.95, stdev= 8.43, samples=20 lat (usec) : 50=0.13%, 100=1.82%, 250=1.95%, 1000=0.13% lat (msec) : 2=0.26%, 4=6.12%, 10=27.21%, 20=44.66%, 50=16.80% lat (msec) : 100=0.78%, 250=0.13% cpu : usr=0.08%, sys=30.81%, ctx=2602, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154828: Fri Apr 24 06:06:00 2026 read: IOPS=38, BW=614KiB/s (629kB/s)(6256KiB/10188msec) clat (usec): min=68, max=63335, avg=13924.02, stdev=7928.74 lat (usec): min=69, max=63335, avg=13924.71, stdev=7928.73 clat percentiles (usec): | 1.00th=[ 80], 5.00th=[ 112], 10.00th=[ 5145], 20.00th=[ 8979], | 30.00th=[10290], 40.00th=[11600], 50.00th=[13042], 60.00th=[14877], | 70.00th=[17433], 80.00th=[19530], 90.00th=[22676], 95.00th=[27132], | 99.00th=[39584], 99.50th=[45876], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 383, max= 864, per=27.23%, avg=619.20, stdev=149.43, samples=20 iops : min= 23, max= 54, avg=38.20, stdev= 9.53, samples=20 write: IOPS=37, BW=592KiB/s (606kB/s)(6032KiB/10188msec); 0 zone resets clat (usec): min=942, max=51444, avg=12368.55, stdev=8898.67 lat (usec): min=943, max=51446, avg=12369.94, stdev=8898.67 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 2933], 10.00th=[ 3621], 20.00th=[ 4359], | 30.00th=[ 5538], 40.00th=[ 8291], 50.00th=[10814], 60.00th=[12518], | 70.00th=[15664], 80.00th=[18482], 90.00th=[24773], 95.00th=[29754], | 99.00th=[42730], 99.50th=[46924], 99.90th=[51643], 99.95th=[51643], | 99.99th=[51643] bw ( KiB/s): min= 447, max= 768, per=24.43%, avg=584.55, stdev=104.47, samples=20 iops : min= 27, max= 48, avg=36.05, stdev= 6.42, samples=20 lat (usec) : 100=1.69%, 250=2.73%, 500=0.26%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.91%, 4=5.86%, 10=25.78%, 20=44.40%, 50=17.84% lat (msec) : 100=0.26% cpu : usr=0.14%, sys=30.31%, ctx=2546, 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=154829: Fri Apr 24 06:06:00 2026 read: IOPS=37, BW=603KiB/s (617kB/s)(6032KiB/10011msec) clat (usec): min=57, max=56471, avg=14020.68, stdev=8481.39 lat (usec): min=57, max=56471, avg=14021.28, stdev=8481.40 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 101], 10.00th=[ 117], 20.00th=[ 8225], | 30.00th=[10290], 40.00th=[12125], 50.00th=[13698], 60.00th=[15664], | 70.00th=[17957], 80.00th=[19792], 90.00th=[23725], 95.00th=[26870], | 99.00th=[40109], 99.50th=[47973], 99.90th=[56361], 99.95th=[56361], | 99.99th=[56361] bw ( KiB/s): min= 408, max= 768, per=26.22%, avg=596.26, stdev=97.27, samples=19 iops : min= 25, max= 48, avg=36.74, stdev= 6.14, samples=19 write: IOPS=39, BW=625KiB/s (640kB/s)(6256KiB/10011msec); 0 zone resets clat (usec): min=1155, max=74358, avg=11935.06, stdev=9037.48 lat (usec): min=1156, max=74359, avg=11937.86, stdev=9037.91 clat percentiles (usec): | 1.00th=[ 2089], 5.00th=[ 3556], 10.00th=[ 3916], 20.00th=[ 4621], | 30.00th=[ 5669], 40.00th=[ 7570], 50.00th=[ 9765], 60.00th=[11469], | 70.00th=[14353], 80.00th=[17695], 90.00th=[23725], 95.00th=[27657], | 99.00th=[36963], 99.50th=[69731], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 383, max= 832, per=26.03%, avg=622.89, stdev=115.99, samples=19 iops : min= 23, max= 52, avg=38.42, stdev= 7.31, samples=19 lat (usec) : 100=2.21%, 250=4.30%, 500=0.13% lat (msec) : 2=0.39%, 4=5.73%, 10=27.73%, 20=41.93%, 50=17.06% lat (msec) : 100=0.52% cpu : usr=0.13%, sys=30.67%, ctx=2359, 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=2275KiB/s (2329kB/s), 546KiB/s-614KiB/s (559kB/s-629kB/s), io=23.4MiB (24.5MB), run=10011-10529msec WRITE: bw=2393KiB/s (2451kB/s), 592KiB/s-628KiB/s (606kB/s-643kB/s), io=24.6MiB (25.8MB), run=10011-10529msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154822: Fri Apr 24 06:06:06 2026 read: IOPS=23, BW=374KiB/s (383kB/s)(5920KiB/15813msec) clat (usec): min=2863, max=94084, avg=12089.25, stdev=11859.25 lat (usec): min=2864, max=94084, avg=12089.90, stdev=11859.21 clat percentiles (usec): | 1.00th=[ 3064], 5.00th=[ 3458], 10.00th=[ 3949], 20.00th=[ 4424], | 30.00th=[ 4883], 40.00th=[ 5604], 50.00th=[ 7111], 60.00th=[ 9634], | 70.00th=[11994], 80.00th=[16581], 90.00th=[30278], 95.00th=[37487], | 99.00th=[51119], 99.50th=[60031], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 191, max= 800, per=24.13%, avg=364.84, stdev=176.59, samples=31 iops : min= 11, max= 50, avg=22.48, stdev=11.23, samples=31 write: IOPS=25, BW=403KiB/s (412kB/s)(6368KiB/15813msec); 0 zone resets clat (msec): min=11, max=133, avg=28.36, stdev=14.63 lat (msec): min=11, max=133, avg=28.36, stdev=14.63 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 48], 95.00th=[ 58], | 99.00th=[ 83], 99.50th=[ 101], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 191, max= 704, per=24.97%, avg=397.29, stdev=184.16, samples=31 iops : min= 11, max= 44, avg=24.52, stdev=11.73, samples=31 lat (msec) : 4=5.21%, 10=24.61%, 20=27.34%, 50=37.89%, 100=4.69% lat (msec) : 250=0.26% cpu : usr=0.06%, sys=10.40%, ctx=1518, 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=154824: Fri Apr 24 06:06:06 2026 read: IOPS=22, BW=363KiB/s (371kB/s)(5744KiB/15833msec) clat (usec): min=3095, max=66040, avg=11156.57, stdev=10501.21 lat (usec): min=3095, max=66041, avg=11157.34, stdev=10501.13 clat percentiles (usec): | 1.00th=[ 3163], 5.00th=[ 3589], 10.00th=[ 3916], 20.00th=[ 4490], | 30.00th=[ 4883], 40.00th=[ 5538], 50.00th=[ 6325], 60.00th=[ 8717], | 70.00th=[10683], 80.00th=[16450], 90.00th=[25035], 95.00th=[35914], | 99.00th=[51643], 99.50th=[64750], 99.90th=[65799], 99.95th=[65799], | 99.99th=[65799] bw ( KiB/s): min= 96, max= 736, per=23.83%, avg=360.35, stdev=198.39, samples=31 iops : min= 6, max= 46, avg=22.19, stdev=12.60, samples=31 write: IOPS=25, BW=413KiB/s (423kB/s)(6544KiB/15833msec); 0 zone resets clat (msec): min=11, max=104, avg=28.87, stdev=14.50 lat (msec): min=11, max=104, avg=28.87, stdev=14.50 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 24], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 40], 90.00th=[ 51], 95.00th=[ 56], | 99.00th=[ 81], 99.50th=[ 83], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 191, max= 704, per=25.53%, avg=406.13, stdev=170.11, samples=31 iops : min= 11, max= 44, avg=25.06, stdev=10.86, samples=31 lat (msec) : 4=5.21%, 10=25.26%, 20=25.78%, 50=37.50%, 100=6.12% lat (msec) : 250=0.13% cpu : usr=0.09%, sys=10.05%, ctx=1483, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154826: Fri Apr 24 06:06:06 2026 read: IOPS=25, BW=404KiB/s (413kB/s)(6256KiB/15493msec) clat (msec): min=2, max=105, avg=12.07, stdev=12.63 lat (msec): min=2, max=105, avg=12.07, stdev=12.63 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 6], 50.00th=[ 7], 60.00th=[ 10], | 70.00th=[ 12], 80.00th=[ 19], 90.00th=[ 26], 95.00th=[ 39], | 99.00th=[ 69], 99.50th=[ 75], 99.90th=[ 106], 99.95th=[ 106], | 99.99th=[ 106] bw ( KiB/s): min= 159, max= 960, per=26.73%, avg=404.10, stdev=231.30, samples=30 iops : min= 9, max= 60, avg=24.93, stdev=14.64, samples=30 write: IOPS=24, BW=389KiB/s (399kB/s)(6032KiB/15493msec); 0 zone resets clat (msec): min=12, max=120, avg=28.39, stdev=13.16 lat (msec): min=12, max=120, avg=28.39, stdev=13.16 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 28], | 70.00th=[ 32], 80.00th=[ 37], 90.00th=[ 45], 95.00th=[ 55], | 99.00th=[ 77], 99.50th=[ 89], 99.90th=[ 121], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 128, max= 736, per=23.91%, avg=380.40, stdev=168.16, samples=30 iops : min= 8, max= 46, avg=23.47, stdev=10.70, samples=30 lat (msec) : 4=6.90%, 10=25.00%, 20=24.61%, 50=38.80%, 100=4.43% lat (msec) : 250=0.26% cpu : usr=0.10%, sys=10.35%, ctx=1506, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154827: Fri Apr 24 06:06:06 2026 read: IOPS=24, BW=386KiB/s (395kB/s)(6032KiB/15643msec) clat (usec): min=2710, max=74841, avg=12264.76, stdev=11472.37 lat (usec): min=2711, max=74843, avg=12265.47, stdev=11472.34 clat percentiles (usec): | 1.00th=[ 3064], 5.00th=[ 3425], 10.00th=[ 3720], 20.00th=[ 4424], | 30.00th=[ 5014], 40.00th=[ 5932], 50.00th=[ 7635], 60.00th=[ 9765], | 70.00th=[12387], 80.00th=[18482], 90.00th=[28967], 95.00th=[35914], | 99.00th=[60031], 99.50th=[67634], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 127, max= 768, per=25.24%, avg=381.68, stdev=164.99, samples=31 iops : min= 7, max= 48, avg=23.55, stdev=10.53, samples=31 write: IOPS=24, BW=400KiB/s (410kB/s)(6256KiB/15643msec); 0 zone resets clat (msec): min=12, max=132, avg=28.06, stdev=13.21 lat (msec): min=12, max=132, avg=28.06, stdev=13.21 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 17], 10.00th=[ 18], 20.00th=[ 20], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 25], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 35], 90.00th=[ 43], 95.00th=[ 52], | 99.00th=[ 84], 99.50th=[ 103], 99.90th=[ 133], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 192, max= 736, per=25.08%, avg=399.03, stdev=173.73, samples=31 iops : min= 12, max= 46, avg=24.61, stdev=11.05, samples=31 lat (msec) : 4=7.29%, 10=22.66%, 20=24.48%, 50=41.93%, 100=3.39% lat (msec) : 250=0.26% cpu : usr=0.10%, sys=10.43%, ctx=1477, 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=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=1513KiB/s (1549kB/s), 363KiB/s-404KiB/s (371kB/s-413kB/s), io=23.4MiB (24.5MB), run=15493-15833msec WRITE: bw=1592KiB/s (1630kB/s), 389KiB/s-413KiB/s (399kB/s-423kB/s), io=24.6MiB (25.8MB), run=15493-15833msec 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=154838: Fri Apr 24 06:06:15 2026 read: IOPS=2, BW=2479KiB/s (2539kB/s)(7168KiB/2891msec) clat (msec): min=87, max=242, avg=185.99, stdev=62.96 lat (msec): min=87, max=242, avg=185.99, stdev=62.96 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 123], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 241], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1969, max= 5466, per=57.28%, avg=2870.75, stdev=1730.47, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1771KiB/s (1814kB/s)(5120KiB/2891msec); 0 zone resets clat (msec): min=189, max=418, avg=308.00, stdev=84.88 lat (msec): min=189, max=418, avg=308.06, stdev=84.84 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 1969, max= 5763, per=55.09%, avg=3866.00, stdev=2682.76, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=8.33%, 250=58.33%, 500=33.33% cpu : usr=0.03%, sys=51.94%, ctx=820, 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=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=154839: Fri Apr 24 06:06:15 2026 read: IOPS=0, BW=564KiB/s (577kB/s)(2048KiB/3633msec) clat (msec): min=100, max=131, avg=115.69, stdev=22.10 lat (msec): min=100, max=131, avg=115.69, stdev=22.10 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 132], | 70.00th=[ 132], 80.00th=[ 132], 90.00th=[ 132], 95.00th=[ 132], | 99.00th=[ 132], 99.50th=[ 132], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 1822, max= 2048, per=38.61%, avg=1935.00, stdev=159.81, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2819KiB/s (2886kB/s)(10.0MiB/3633msec); 0 zone resets clat (msec): min=133, max=715, avg=338.39, stdev=215.21 lat (msec): min=133, max=715, avg=338.45, stdev=215.21 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 140], | 30.00th=[ 178], 40.00th=[ 228], 50.00th=[ 234], 60.00th=[ 284], | 70.00th=[ 288], 80.00th=[ 542], 90.00th=[ 651], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1954, max= 4096, per=49.84%, avg=3497.00, stdev=1030.72, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.26, samples=4 lat (msec) : 250=58.33%, 500=16.67%, 750=25.00% cpu : usr=0.00%, sys=45.87%, ctx=460, 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=154840: Fri Apr 24 06:06:15 2026 read: IOPS=1, BW=1993KiB/s (2041kB/s)(6144KiB/3083msec) clat (usec): min=467, max=289568, avg=147106.26, stdev=131491.61 lat (usec): min=469, max=289568, avg=147107.42, stdev=131491.27 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 99091], 50.00th=[ 99091], 60.00th=[221250], | 70.00th=[270533], 80.00th=[270533], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 2048, max= 4000, per=65.78%, avg=3296.67, stdev=1084.26, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1993KiB/s (2041kB/s)(6144KiB/3083msec); 0 zone resets clat (msec): min=181, max=498, avg=357.02, stdev=117.62 lat (msec): min=181, max=498, avg=357.06, stdev=117.63 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 376], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 1812, max= 3938, per=34.63%, avg=2429.75, stdev=1010.11, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=58.33% cpu : usr=0.00%, sys=39.49%, ctx=293, 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=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=154841: Fri Apr 24 06:06:15 2026 read: IOPS=1, BW=1253KiB/s (1283kB/s)(5120KiB/4086msec) clat (usec): min=461, max=360904, avg=218441.47, stdev=159341.25 lat (usec): min=462, max=360904, avg=218442.78, stdev=159341.30 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 461], | 30.00th=[109577], 40.00th=[109577], 50.00th=[261096], 60.00th=[261096], | 70.00th=[358613], 80.00th=[358613], 90.00th=[362808], 95.00th=[362808], | 99.00th=[362808], 99.50th=[362808], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 1954, max= 6107, per=80.42%, avg=4030.50, stdev=2936.61, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1754KiB/s (1796kB/s)(7168KiB/4086msec); 0 zone resets clat (msec): min=103, max=647, avg=417.23, stdev=250.80 lat (msec): min=103, max=647, avg=417.32, stdev=250.81 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 161], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 535], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 642], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1921, max= 2048, per=28.28%, avg=1984.50, stdev=53.37, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=33.86%, ctx=306, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5012KiB/s (5133kB/s), 564KiB/s-2479KiB/s (577kB/s-2539kB/s), io=20.0MiB (20.0MB), run=2891-4086msec WRITE: bw=7017KiB/s (7186kB/s), 1754KiB/s-2819KiB/s (1796kB/s-2886kB/s), io=28.0MiB (29.4MB), run=2891-4086msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154842: Fri Apr 24 06:06:15 2026 read: IOPS=1, BW=2039KiB/s (2088kB/s)(7168KiB/3515msec) clat (msec): min=65, max=306, avg=139.53, stdev=79.12 lat (msec): min=65, max=306, avg=139.54, stdev=79.12 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 97], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 114], 60.00th=[ 144], | 70.00th=[ 144], 80.00th=[ 153], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 2043, max= 3871, per=59.33%, avg=2918.00, stdev=1009.62, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1457KiB/s (1492kB/s)(5120KiB/3515msec); 0 zone resets clat (msec): min=256, max=984, avg=498.14, stdev=291.00 lat (msec): min=256, max=984, avg=498.20, stdev=291.00 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1935, max= 3820, per=37.75%, avg=2599.33, stdev=1058.51, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.06%, sys=15.37%, ctx=136, 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=154843: Fri Apr 24 06:06:15 2026 read: IOPS=0, BW=528KiB/s (540kB/s)(2048KiB/3882msec) clat (msec): min=164, max=262, avg=213.68, stdev=68.96 lat (msec): min=164, max=262, avg=213.68, stdev=68.96 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 1872, max= 2043, per=39.80%, avg=1957.50, stdev=120.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2638KiB/s (2701kB/s)(10.0MiB/3882msec); 0 zone resets clat (msec): min=102, max=893, avg=335.92, stdev=254.89 lat (msec): min=102, max=893, avg=336.00, stdev=254.89 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 161], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 241], 60.00th=[ 262], | 70.00th=[ 271], 80.00th=[ 321], 90.00th=[ 701], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1802, max= 6144, per=51.75%, avg=3562.80, stdev=1793.36, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.05, samples=5 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=21.82%, ctx=211, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=154844: Fri Apr 24 06:06:15 2026 read: IOPS=1, BW=1600KiB/s (1638kB/s)(6144KiB/3840msec) clat (msec): min=59, max=551, avg=260.67, stdev=215.63 lat (msec): min=59, max=551, avg=260.67, stdev=215.63 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 167], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 2043, max= 4096, per=66.04%, avg=3248.00, stdev=1072.05, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1600KiB/s (1638kB/s)(6144KiB/3840msec); 0 zone resets clat (msec): min=74, max=707, avg=361.30, stdev=208.88 lat (msec): min=74, max=707, avg=361.38, stdev=208.89 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 435], 80.00th=[ 435], 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= 1802, max= 2048, per=28.08%, avg=1933.20, stdev=111.54, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=16.20%, ctx=220, 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=154845: Fri Apr 24 06:06:15 2026 read: IOPS=1, BW=1230KiB/s (1259kB/s)(5120KiB/4164msec) clat (msec): min=23, max=559, avg=339.53, stdev=219.14 lat (msec): min=23, max=559, avg=339.53, stdev=219.14 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 24], 10.00th=[ 24], 20.00th=[ 24], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1910, max= 2048, per=40.67%, avg=2000.33, stdev=78.27, samples=3 iops : min= 1, max= 2, avg= 1.33, stdev= 0.58, samples=3 write: IOPS=1, BW=1721KiB/s (1763kB/s)(7168KiB/4164msec); 0 zone resets clat (msec): min=40, max=857, avg=350.48, stdev=277.09 lat (msec): min=40, max=857, avg=350.55, stdev=277.09 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 41], 10.00th=[ 41], 20.00th=[ 102], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 372], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 506], 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= 1802, max= 2048, per=27.73%, avg=1909.00, stdev=107.72, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 50=16.67%, 250=25.00%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=10.81%, ctx=249, 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=4918KiB/s (5036kB/s), 528KiB/s-2039KiB/s (540kB/s-2088kB/s), io=20.0MiB (20.0MB), run=3515-4164msec WRITE: bw=6886KiB/s (7051kB/s), 1457KiB/s-2638KiB/s (1492kB/s-2701kB/s), io=28.0MiB (29.4MB), run=3515-4164msec 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=154850: Fri Apr 24 06:06:24 2026 read: IOPS=3, BW=12.1MiB/s (12.7MB/s)(12.0MiB/992msec) clat (msec): min=138, max=567, avg=322.80, stdev=220.66 lat (msec): min=138, max=567, avg=322.81, stdev=220.66 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min=15283, max=15283, per=100.00%, avg=15283.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=22.00%, ctx=69, 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=154851: Fri Apr 24 06:06:24 2026 read: IOPS=0, BW=3248KiB/s (3326kB/s)(4096KiB/1261msec) clat (nsec): min=372494k, max=372494k, avg=372494047.00, stdev= 0.00 lat (nsec): min=372497k, max=372497k, avg=372496544.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7393, max= 7393, per=56.90%, avg=7393.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=6496KiB/s (6652kB/s)(8192KiB/1261msec); 0 zone resets clat (msec): min=244, max=601, avg=423.15, stdev=252.59 lat (msec): min=244, max=602, avg=423.40, stdev=252.59 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 8192, max= 8192, per=39.68%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=20.00%, ctx=67, 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=154852: Fri Apr 24 06:06:24 2026 write: IOPS=1, BW=7743KiB/s (7929kB/s)(12.0MiB/1587msec); 0 zone resets clat (msec): min=213, max=667, avg=515.81, stdev=261.78 lat (msec): min=213, max=667, avg=516.13, stdev=261.80 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8031, max= 8192, per=39.29%, avg=8111.50, stdev=113.84, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=17.65%, ctx=108, 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=154853: Fri Apr 24 06:06:24 2026 write: IOPS=2, BW=9653KiB/s (9884kB/s)(12.0MiB/1273msec); 0 zone resets clat (msec): min=160, max=640, avg=414.46, stdev=240.94 lat (msec): min=161, max=640, avg=414.71, stdev=240.95 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7571, max= 8192, per=38.17%, avg=7881.50, stdev=439.11, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.08%, sys=19.97%, ctx=67, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=12.7MiB/s (13.3MB/s), 3248KiB/s-12.1MiB/s (3326kB/s-12.7MB/s), io=16.0MiB (16.8MB), run=992-1261msec WRITE: bw=20.2MiB/s (21.1MB/s), 6496KiB/s-9653KiB/s (6652kB/s-9884kB/s), io=32.0MiB (33.6MB), run=1261-1587msec rand-rw: (groupid=0, jobs=1): err= 0: pid=154855: Fri Apr 24 06:06:24 2026 read: IOPS=2, BW=10.4MiB/s (10.9MB/s)(12.0MiB/1152msec) clat (msec): min=346, max=409, avg=372.15, stdev=33.25 lat (msec): min=346, max=409, avg=372.15, stdev=33.25 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 8078, max= 8110, per=76.28%, avg=8094.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=53.52%, ctx=2576, 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=154856: Fri Apr 24 06:06:24 2026 read: IOPS=0, BW=2653KiB/s (2717kB/s)(4096KiB/1544msec) clat (nsec): min=432761k, max=432761k, avg=432761432.00, stdev= 0.00 lat (nsec): min=432763k, max=432763k, avg=432763088.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 8078, max= 8078, per=76.13%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5306KiB/s (5433kB/s)(8192KiB/1544msec); 0 zone resets clat (msec): min=283, max=814, avg=548.85, stdev=375.01 lat (msec): min=283, max=814, avg=549.10, stdev=375.00 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 8143, max= 8143, per=38.37%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=21.71%, ctx=800, 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=154857: Fri Apr 24 06:06:24 2026 write: IOPS=1, BW=8031KiB/s (8224kB/s)(12.0MiB/1530msec); 0 zone resets clat (msec): min=114, max=804, avg=496.96, stdev=351.22 lat (msec): min=114, max=804, avg=497.24, stdev=351.24 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8062, max= 8062, per=37.99%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.07%, sys=14.98%, ctx=42, 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=154858: Fri Apr 24 06:06:24 2026 write: IOPS=2, BW=8721KiB/s (8930kB/s)(12.0MiB/1409msec); 0 zone resets clat (msec): min=151, max=892, avg=464.59, stdev=383.37 lat (msec): min=151, max=892, avg=464.82, stdev=383.46 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7846, max= 7846, per=36.97%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=23.72%, ctx=77, 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=10.4MiB/s (10.9MB/s), 2653KiB/s-10.4MiB/s (2717kB/s-10.9MB/s), io=16.0MiB (16.8MB), run=1152-1544msec WRITE: bw=20.7MiB/s (21.7MB/s), 5306KiB/s-8721KiB/s (5433kB/s-8930kB/s), io=32.0MiB (33.6MB), run=1409-1544msec