== sanity test 398b: DIO and buffer IO race ============== 16:59:18 (1760129958) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.77256 s, 10.5 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=147633: Fri Oct 10 17:01:07 2025 read: IOPS=15, BW=63.9KiB/s (65.4kB/s)(5992KiB/93837msec) clat (usec): min=121, max=872123, avg=30454.73, stdev=33445.23 lat (usec): min=122, max=872125, avg=30456.04, stdev=33445.24 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 227], 10.00th=[ 783], 20.00th=[ 15664], | 30.00th=[ 19268], 40.00th=[ 21890], 50.00th=[ 25822], 60.00th=[ 30278], | 70.00th=[ 34866], 80.00th=[ 43254], 90.00th=[ 55313], 95.00th=[ 66323], | 99.00th=[104334], 99.50th=[124257], 99.90th=[471860], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 159, per=25.15%, avg=63.64, stdev=24.57, samples=185 iops : min= 1, max= 39, avg=15.30, stdev= 6.19, samples=185 write: IOPS=16, BW=67.1KiB/s (68.7kB/s)(6296KiB/93837msec); 0 zone resets clat (usec): min=658, max=280296, avg=30367.94, stdev=31164.07 lat (usec): min=659, max=280298, avg=30373.42, stdev=31161.57 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1532], 10.00th=[ 2073], 20.00th=[ 4080], | 30.00th=[ 7767], 40.00th=[ 16057], 50.00th=[ 23200], 60.00th=[ 30540], | 70.00th=[ 39584], 80.00th=[ 50594], 90.00th=[ 66847], 95.00th=[ 88605], | 99.00th=[132645], 99.50th=[168821], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 128, per=25.36%, avg=67.20, stdev=23.73, samples=184 iops : min= 1, max= 32, avg=16.20, stdev= 5.98, samples=184 lat (usec) : 250=2.57%, 500=1.63%, 750=0.68%, 1000=0.36% lat (msec) : 2=4.92%, 4=5.37%, 10=7.58%, 20=16.24%, 50=43.95% lat (msec) : 100=14.39%, 250=2.05%, 500=0.23%, 1000=0.03% cpu : usr=0.13%, sys=10.25%, ctx=7005, 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=147634: Fri Oct 10 17:01:07 2025 read: IOPS=15, BW=63.6KiB/s (65.2kB/s)(5940KiB/93327msec) clat (usec): min=116, max=265768, avg=29643.92, stdev=22165.14 lat (usec): min=117, max=265769, avg=29645.48, stdev=22165.26 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 239], 10.00th=[ 627], 20.00th=[ 15008], | 30.00th=[ 18744], 40.00th=[ 22152], 50.00th=[ 25560], 60.00th=[ 30540], | 70.00th=[ 36439], 80.00th=[ 43779], 90.00th=[ 55837], 95.00th=[ 65274], | 99.00th=[100140], 99.50th=[115868], 99.90th=[244319], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 112, per=25.13%, avg=63.58, stdev=21.69, samples=184 iops : min= 1, max= 28, avg=15.29, stdev= 5.48, samples=184 write: IOPS=17, BW=68.0KiB/s (69.7kB/s)(6348KiB/93327msec); 0 zone resets clat (usec): min=858, max=867253, avg=30812.98, stdev=37911.84 lat (usec): min=860, max=867255, avg=30821.80, stdev=37919.18 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1483], 10.00th=[ 1958], 20.00th=[ 3916], | 30.00th=[ 7373], 40.00th=[ 13960], 50.00th=[ 22152], 60.00th=[ 30278], | 70.00th=[ 38536], 80.00th=[ 51119], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[143655], 99.50th=[179307], 99.90th=[291505], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 15, max= 143, per=25.80%, avg=68.38, stdev=26.06, samples=183 iops : min= 3, max= 35, avg=16.49, stdev= 6.56, samples=183 lat (usec) : 250=2.57%, 500=1.69%, 750=0.81%, 1000=0.33% lat (msec) : 2=5.76%, 4=5.11%, 10=8.17%, 20=16.67%, 50=41.50% lat (msec) : 100=15.01%, 250=2.28%, 500=0.07%, 1000=0.03% cpu : usr=0.11%, sys=10.53%, ctx=7119, 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=147635: Fri Oct 10 17:01:07 2025 read: IOPS=15, BW=63.7KiB/s (65.3kB/s)(6028KiB/94597msec) clat (usec): min=108, max=346238, avg=30239.86, stdev=23866.41 lat (usec): min=108, max=346240, avg=30241.37, stdev=23866.42 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 210], 10.00th=[ 586], 20.00th=[ 15008], | 30.00th=[ 19006], 40.00th=[ 22676], 50.00th=[ 26346], 60.00th=[ 30802], | 70.00th=[ 36963], 80.00th=[ 44303], 90.00th=[ 54789], 95.00th=[ 66323], | 99.00th=[ 98042], 99.50th=[139461], 99.90th=[233833], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7, max= 150, per=25.34%, avg=64.11, stdev=23.39, samples=184 iops : min= 1, max= 37, avg=15.42, stdev= 5.91, samples=184 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(6260KiB/94597msec); 0 zone resets clat (usec): min=971, max=1013.0k, avg=31058.69, stdev=38648.89 lat (usec): min=972, max=1013.0k, avg=31061.51, stdev=38648.37 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1549], 10.00th=[ 2278], | 20.00th=[ 4621], 30.00th=[ 7832], 40.00th=[ 16909], | 50.00th=[ 24511], 60.00th=[ 31065], 70.00th=[ 40109], | 80.00th=[ 50594], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[ 132645], 99.50th=[ 158335], 99.90th=[ 304088], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 7, max= 135, per=25.12%, avg=66.58, stdev=23.55, samples=184 iops : min= 1, max= 33, avg=16.03, stdev= 5.91, samples=184 lat (usec) : 250=2.83%, 500=1.63%, 750=0.81%, 1000=0.10% lat (msec) : 2=4.49%, 4=4.65%, 10=8.56%, 20=15.49%, 50=43.98% lat (msec) : 100=15.82%, 250=1.53%, 500=0.07%, 2000=0.03% cpu : usr=0.12%, sys=10.43%, ctx=7179, 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=147636: Fri Oct 10 17:01:07 2025 read: IOPS=16, BW=64.9KiB/s (66.4kB/s)(6052KiB/93305msec) clat (usec): min=104, max=169043, avg=29264.72, stdev=19868.92 lat (usec): min=106, max=169044, avg=29269.58, stdev=19869.51 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 243], 10.00th=[ 988], 20.00th=[ 15533], | 30.00th=[ 19006], 40.00th=[ 22414], 50.00th=[ 25822], 60.00th=[ 30016], | 70.00th=[ 35914], 80.00th=[ 43254], 90.00th=[ 54264], 95.00th=[ 65274], | 99.00th=[ 88605], 99.50th=[104334], 99.90th=[164627], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 7, max= 112, per=25.90%, avg=65.52, stdev=22.33, samples=182 iops : min= 1, max= 28, avg=15.78, stdev= 5.62, samples=182 write: IOPS=16, BW=66.8KiB/s (68.4kB/s)(6236KiB/93305msec); 0 zone resets clat (usec): min=917, max=881785, avg=31173.67, stdev=38992.39 lat (usec): min=918, max=881787, avg=31176.67, stdev=38992.24 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1532], 10.00th=[ 2057], 20.00th=[ 3720], | 30.00th=[ 7570], 40.00th=[ 14877], 50.00th=[ 22938], 60.00th=[ 29754], | 70.00th=[ 40109], 80.00th=[ 51643], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[141558], 99.50th=[198181], 99.90th=[379585], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 159, per=25.18%, avg=66.73, stdev=24.73, samples=184 iops : min= 1, max= 39, avg=16.08, stdev= 6.19, samples=184 lat (usec) : 250=2.51%, 500=1.76%, 750=0.55%, 1000=0.16% lat (msec) : 2=5.05%, 4=6.09%, 10=6.93%, 20=16.44%, 50=42.84% lat (msec) : 100=15.69%, 250=1.82%, 500=0.13%, 1000=0.03% cpu : usr=0.11%, sys=10.40%, ctx=7141, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=254KiB/s (260kB/s), 63.6KiB/s-64.9KiB/s (65.2kB/s-66.4kB/s), io=23.4MiB (24.6MB), run=93305-94597msec WRITE: bw=266KiB/s (272kB/s), 66.2KiB/s-68.0KiB/s (67.8kB/s-69.7kB/s), io=24.6MiB (25.7MB), run=93305-94597msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147638: Fri Oct 10 17:03:13 2025 read: IOPS=6, BW=27.1KiB/s (27.8kB/s)(5992KiB/220954msec) clat (msec): min=5, max=880, avg=28.97, stdev=33.39 lat (msec): min=5, max=880, avg=28.98, stdev=33.39 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 56], 95.00th=[ 73], | 99.00th=[ 129], 99.50th=[ 146], 99.90th=[ 309], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 103, per=27.15%, avg=29.32, stdev=17.74, samples=397 iops : min= 1, max= 25, avg= 6.74, stdev= 4.47, samples=397 write: IOPS=7, BW=28.5KiB/s (29.2kB/s)(6296KiB/220954msec); 0 zone resets clat (msec): min=40, max=406, avg=112.68, stdev=44.70 lat (msec): min=40, max=406, avg=112.69, stdev=44.70 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 78], | 30.00th=[ 86], 40.00th=[ 95], 50.00th=[ 103], 60.00th=[ 112], | 70.00th=[ 125], 80.00th=[ 142], 90.00th=[ 169], 95.00th=[ 203], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 359], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7, max= 55, per=24.72%, avg=27.93, stdev=10.13, samples=437 iops : min= 1, max= 13, avg= 6.39, stdev= 2.62, samples=437 lat (msec) : 10=4.00%, 20=21.29%, 50=17.32%, 100=29.07%, 250=27.51% lat (msec) : 500=0.78%, 1000=0.03% cpu : usr=0.06%, sys=2.07%, ctx=5765, 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=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=147639: Fri Oct 10 17:03:13 2025 read: IOPS=6, BW=26.0KiB/s (27.6kB/s)(5940KiB/220060msec) clat (msec): min=5, max=908, avg=28.89, stdev=33.03 lat (msec): min=5, max=908, avg=28.89, stdev=33.03 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 57], 95.00th=[ 70], | 99.00th=[ 112], 99.50th=[ 126], 99.90th=[ 351], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 103, per=26.50%, avg=28.62, stdev=18.16, samples=403 iops : min= 1, max= 25, avg= 6.57, stdev= 4.58, samples=403 write: IOPS=7, BW=28.8KiB/s (29.5kB/s)(6348KiB/220060msec); 0 zone resets clat (msec): min=41, max=486, avg=111.51, stdev=44.34 lat (msec): min=41, max=486, avg=111.52, stdev=44.34 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 78], | 30.00th=[ 86], 40.00th=[ 94], 50.00th=[ 102], 60.00th=[ 111], | 70.00th=[ 123], 80.00th=[ 140], 90.00th=[ 169], 95.00th=[ 199], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 359], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 55, per=25.15%, avg=28.42, stdev=10.16, samples=433 iops : min= 1, max= 13, avg= 6.51, stdev= 2.62, samples=433 lat (msec) : 10=3.32%, 20=20.61%, 50=18.46%, 100=30.50%, 250=26.24% lat (msec) : 500=0.85%, 1000=0.03% cpu : usr=0.06%, sys=2.09%, ctx=5685, 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=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=147640: Fri Oct 10 17:03:13 2025 read: IOPS=6, BW=27.3KiB/s (28.0kB/s)(6028KiB/220399msec) clat (msec): min=5, max=290, avg=29.49, stdev=25.58 lat (msec): min=5, max=290, avg=29.49, stdev=25.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 56], 95.00th=[ 75], | 99.00th=[ 129], 99.50th=[ 146], 99.90th=[ 275], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 128, per=26.32%, avg=28.43, stdev=18.06, samples=412 iops : min= 1, max= 32, avg= 6.52, stdev= 4.60, samples=412 write: IOPS=7, BW=28.4KiB/s (29.1kB/s)(6260KiB/220399msec); 0 zone resets clat (msec): min=43, max=1002, avg=112.32, stdev=49.40 lat (msec): min=43, max=1002, avg=112.33, stdev=49.40 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 94], 50.00th=[ 104], 60.00th=[ 112], | 70.00th=[ 125], 80.00th=[ 140], 90.00th=[ 171], 95.00th=[ 199], | 99.00th=[ 266], 99.50th=[ 296], 99.90th=[ 485], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 56, per=24.70%, avg=27.91, stdev=10.51, samples=435 iops : min= 1, max= 14, avg= 6.39, stdev= 2.68, samples=435 lat (msec) : 10=3.81%, 20=19.79%, 50=19.24%, 100=28.97%, 250=27.51% lat (msec) : 500=0.65%, 2000=0.03% cpu : usr=0.07%, sys=2.07%, ctx=5621, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147641: Fri Oct 10 17:03:13 2025 read: IOPS=6, BW=27.6KiB/s (28.3kB/s)(6052KiB/219094msec) clat (msec): min=5, max=299, avg=28.21, stdev=23.82 lat (msec): min=5, max=299, avg=28.21, stdev=23.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 55], 95.00th=[ 73], | 99.00th=[ 108], 99.50th=[ 133], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 110, per=27.24%, avg=29.42, stdev=18.60, samples=400 iops : min= 1, max= 27, avg= 6.77, stdev= 4.70, samples=400 write: IOPS=7, BW=28.5KiB/s (29.1kB/s)(6236KiB/219094msec); 0 zone resets clat (msec): min=43, max=1045, avg=113.03, stdev=51.99 lat (msec): min=43, max=1045, avg=113.04, stdev=51.99 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 78], | 30.00th=[ 86], 40.00th=[ 93], 50.00th=[ 102], 60.00th=[ 112], | 70.00th=[ 124], 80.00th=[ 140], 90.00th=[ 176], 95.00th=[ 209], | 99.00th=[ 271], 99.50th=[ 309], 99.90th=[ 535], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 56, per=24.71%, avg=27.92, stdev=10.46, samples=433 iops : min= 1, max= 14, avg= 6.39, stdev= 2.69, samples=433 lat (msec) : 10=3.22%, 20=22.10%, 50=17.94%, 100=30.11%, 250=25.75% lat (msec) : 500=0.81%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=2.09%, ctx=5738, 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=109KiB/s (111kB/s), 26.0KiB/s-27.6KiB/s (27.6kB/s-28.3kB/s), io=23.4MiB (24.6MB), run=219094-220954msec WRITE: bw=114KiB/s (117kB/s), 28.4KiB/s-28.8KiB/s (29.1kB/s-29.5kB/s), io=24.6MiB (25.7MB), run=219094-220954msec 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=147701: Fri Oct 10 17:03:42 2025 read: IOPS=19, BW=319KiB/s (326kB/s)(5920KiB/18576msec) clat (usec): min=137, max=124625, avg=24470.15, stdev=18603.73 lat (usec): min=137, max=124625, avg=24471.40, stdev=18603.68 clat percentiles (usec): | 1.00th=[ 151], 5.00th=[ 184], 10.00th=[ 262], 20.00th=[ 644], | 30.00th=[ 15664], 40.00th=[ 19792], 50.00th=[ 23462], 60.00th=[ 27395], | 70.00th=[ 33424], 80.00th=[ 39584], 90.00th=[ 46400], 95.00th=[ 52691], | 99.00th=[ 81265], 99.50th=[ 93848], 99.90th=[124257], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 95, max= 506, per=28.60%, avg=321.50, stdev=102.42, samples=36 iops : min= 5, max= 31, avg=19.31, stdev= 6.52, samples=36 write: IOPS=21, BW=343KiB/s (351kB/s)(6368KiB/18576msec); 0 zone resets clat (usec): min=1367, max=212388, avg=23250.33, stdev=24878.52 lat (usec): min=1368, max=212391, avg=23265.73, stdev=24869.05 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2278], 10.00th=[ 2900], 20.00th=[ 5211], | 30.00th=[ 7046], 40.00th=[ 10028], 50.00th=[ 14877], 60.00th=[ 21627], | 70.00th=[ 28967], 80.00th=[ 37487], 90.00th=[ 52167], 95.00th=[ 66847], | 99.00th=[135267], 99.50th=[149947], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 85, max= 576, per=29.39%, avg=347.36, stdev=114.36, samples=36 iops : min= 5, max= 36, avg=20.94, stdev= 7.25, samples=36 lat (usec) : 250=4.56%, 500=3.91%, 750=1.69%, 1000=0.39% lat (msec) : 2=1.82%, 4=7.16%, 10=12.37%, 20=17.06%, 50=41.67% lat (msec) : 100=8.33%, 250=1.04% cpu : usr=0.21%, sys=15.67%, ctx=1767, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147702: Fri Oct 10 17:03:42 2025 read: IOPS=17, BW=281KiB/s (288kB/s)(5744KiB/20415msec) clat (usec): min=120, max=136404, avg=27273.36, stdev=20092.24 lat (usec): min=121, max=136406, avg=27275.22, stdev=20092.65 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 245], 10.00th=[ 388], 20.00th=[ 12387], | 30.00th=[ 18220], 40.00th=[ 21890], 50.00th=[ 25297], 60.00th=[ 29754], | 70.00th=[ 33817], 80.00th=[ 41681], 90.00th=[ 50594], 95.00th=[ 61080], | 99.00th=[100140], 99.50th=[108528], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 95, max= 510, per=25.00%, avg=280.97, stdev=106.50, samples=40 iops : min= 5, max= 31, avg=16.82, stdev= 6.66, samples=40 write: IOPS=20, BW=321KiB/s (328kB/s)(6544KiB/20415msec); 0 zone resets clat (usec): min=1736, max=240025, avg=25680.49, stdev=26144.96 lat (usec): min=1738, max=240028, avg=25683.97, stdev=26144.18 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 2737], 10.00th=[ 3621], 20.00th=[ 5604], | 30.00th=[ 7504], 40.00th=[ 12125], 50.00th=[ 17957], 60.00th=[ 25035], | 70.00th=[ 33817], 80.00th=[ 41681], 90.00th=[ 57410], 95.00th=[ 68682], | 99.00th=[119014], 99.50th=[141558], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 126, max= 542, per=27.02%, avg=319.38, stdev=95.15, samples=40 iops : min= 7, max= 33, avg=19.23, stdev= 5.99, samples=40 lat (usec) : 250=2.60%, 500=3.65%, 750=1.04%, 1000=0.26% lat (msec) : 2=1.43%, 4=6.38%, 10=13.02%, 20=15.76%, 50=43.62% lat (msec) : 100=10.94%, 250=1.30% cpu : usr=0.11%, sys=15.37%, ctx=1926, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147703: Fri Oct 10 17:03:42 2025 read: IOPS=19, BW=309KiB/s (316kB/s)(6256KiB/20276msec) clat (usec): min=129, max=140264, avg=27104.62, stdev=20124.05 lat (usec): min=130, max=140265, avg=27134.02, stdev=20146.54 clat percentiles (usec): | 1.00th=[ 153], 5.00th=[ 221], 10.00th=[ 379], 20.00th=[ 12780], | 30.00th=[ 17433], 40.00th=[ 21627], 50.00th=[ 24511], 60.00th=[ 28181], | 70.00th=[ 34341], 80.00th=[ 41681], 90.00th=[ 51119], 95.00th=[ 62129], | 99.00th=[ 94897], 99.50th=[110625], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 86, max= 570, per=27.58%, avg=309.95, stdev=106.53, samples=40 iops : min= 5, max= 35, avg=18.65, stdev= 6.76, samples=40 write: IOPS=18, BW=297KiB/s (305kB/s)(6032KiB/20276msec); 0 zone resets clat (usec): min=1346, max=134513, avg=24923.57, stdev=23425.16 lat (usec): min=1348, max=134516, avg=24926.20, stdev=23425.21 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2278], 10.00th=[ 3425], 20.00th=[ 5276], | 30.00th=[ 7832], 40.00th=[ 11207], 50.00th=[ 17433], 60.00th=[ 24249], | 70.00th=[ 31327], 80.00th=[ 43779], 90.00th=[ 58983], 95.00th=[ 66323], | 99.00th=[109577], 99.50th=[132645], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 95, max= 480, per=25.01%, avg=295.65, stdev=100.34, samples=40 iops : min= 5, max= 30, avg=17.75, stdev= 6.30, samples=40 lat (usec) : 250=3.12%, 500=3.26%, 750=1.04%, 1000=0.39% lat (msec) : 2=1.43%, 4=6.38%, 10=11.59%, 20=17.97%, 50=41.41% lat (msec) : 100=12.50%, 250=0.91% cpu : usr=0.13%, sys=15.32%, ctx=1918, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147704: Fri Oct 10 17:03:42 2025 read: IOPS=17, BW=283KiB/s (290kB/s)(6032KiB/21303msec) clat (usec): min=134, max=147501, avg=28287.69, stdev=21176.44 lat (usec): min=134, max=147503, avg=28289.76, stdev=21177.00 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 204], 10.00th=[ 408], 20.00th=[ 13304], | 30.00th=[ 19006], 40.00th=[ 22414], 50.00th=[ 25822], 60.00th=[ 30016], | 70.00th=[ 35390], 80.00th=[ 43254], 90.00th=[ 51119], 95.00th=[ 63177], | 99.00th=[109577], 99.50th=[124257], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 63, max= 479, per=25.70%, avg=288.88, stdev=110.82, samples=41 iops : min= 3, max= 29, avg=17.29, stdev= 6.96, samples=41 write: IOPS=18, BW=294KiB/s (301kB/s)(6256KiB/21303msec); 0 zone resets clat (usec): min=1555, max=177205, avg=26609.65, stdev=30849.53 lat (usec): min=1557, max=177208, avg=26612.58, stdev=30849.57 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2737], 10.00th=[ 3654], 20.00th=[ 5211], | 30.00th=[ 7570], 40.00th=[ 10552], 50.00th=[ 16319], 60.00th=[ 22414], | 70.00th=[ 29492], 80.00th=[ 40109], 90.00th=[ 63177], 95.00th=[ 92799], | 99.00th=[158335], 99.50th=[175113], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 63, max= 542, per=24.99%, avg=295.40, stdev=123.52, samples=42 iops : min= 3, max= 33, avg=17.71, stdev= 7.73, samples=42 lat (usec) : 250=3.26%, 500=2.60%, 750=1.56%, 1000=0.52% lat (msec) : 2=1.82%, 4=4.69%, 10=14.06%, 20=15.89%, 50=42.58% lat (msec) : 100=10.16%, 250=2.86% cpu : usr=0.14%, sys=14.39%, ctx=1949, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1124KiB/s (1151kB/s), 281KiB/s-319KiB/s (288kB/s-326kB/s), io=23.4MiB (24.5MB), run=18576-21303msec WRITE: bw=1183KiB/s (1211kB/s), 294KiB/s-343KiB/s (301kB/s-351kB/s), io=24.6MiB (25.8MB), run=18576-21303msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147697: Fri Oct 10 17:04:12 2025 read: IOPS=7, BW=117KiB/s (119kB/s)(5920KiB/50811msec) clat (msec): min=6, max=126, avg=25.88, stdev=20.49 lat (msec): min=6, max=126, avg=25.88, stdev=20.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 35], 90.00th=[ 57], 95.00th=[ 69], | 99.00th=[ 106], 99.50th=[ 121], 99.90th=[ 127], 99.95th=[ 127], | 99.99th=[ 127] bw ( KiB/s): min= 31, max= 349, per=25.32%, avg=116.46, stdev=64.99, samples=99 iops : min= 1, max= 21, avg= 6.56, stdev= 4.09, samples=99 write: IOPS=7, BW=125KiB/s (128kB/s)(6368KiB/50811msec); 0 zone resets clat (msec): min=38, max=287, avg=103.10, stdev=37.29 lat (msec): min=38, max=287, avg=103.11, stdev=37.29 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 88], 50.00th=[ 97], 60.00th=[ 105], | 70.00th=[ 113], 80.00th=[ 127], 90.00th=[ 150], 95.00th=[ 176], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 28, max= 224, per=25.75%, avg=124.64, stdev=43.73, samples=100 iops : min= 1, max= 14, avg= 7.08, stdev= 2.83, samples=100 lat (msec) : 10=3.65%, 20=23.57%, 50=15.49%, 100=32.68%, 250=24.09% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=3.03%, ctx=1589, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147698: Fri Oct 10 17:04:12 2025 read: IOPS=6, BW=110KiB/s (113kB/s)(5744KiB/52050msec) clat (msec): min=6, max=233, avg=26.89, stdev=27.72 lat (msec): min=6, max=233, avg=26.89, stdev=27.72 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 64], 95.00th=[ 82], | 99.00th=[ 142], 99.50th=[ 194], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 28, max= 480, per=25.49%, avg=117.26, stdev=78.99, samples=96 iops : min= 1, max= 30, avg= 6.63, stdev= 5.02, samples=96 write: IOPS=7, BW=126KiB/s (129kB/s)(6544KiB/52050msec); 0 zone resets clat (msec): min=38, max=250, avg=103.05, stdev=36.03 lat (msec): min=38, max=250, avg=103.06, stdev=36.03 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 72], | 30.00th=[ 81], 40.00th=[ 89], 50.00th=[ 97], 60.00th=[ 107], | 70.00th=[ 117], 80.00th=[ 132], 90.00th=[ 150], 95.00th=[ 176], | 99.00th=[ 220], 99.50th=[ 226], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 255, per=25.90%, avg=125.36, stdev=43.97, samples=103 iops : min= 1, max= 15, avg= 7.14, stdev= 2.85, samples=103 lat (msec) : 10=4.30%, 20=24.61%, 50=12.89%, 100=32.68%, 250=25.39% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=2.78%, ctx=1492, 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=147699: Fri Oct 10 17:04:12 2025 read: IOPS=7, BW=123KiB/s (126kB/s)(6256KiB/50742msec) clat (msec): min=5, max=231, avg=28.17, stdev=26.76 lat (msec): min=5, max=231, avg=28.17, stdev=26.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 58], 95.00th=[ 89], | 99.00th=[ 123], 99.50th=[ 188], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 415, per=27.21%, avg=125.16, stdev=79.43, samples=99 iops : min= 1, max= 25, avg= 7.12, stdev= 5.01, samples=99 write: IOPS=7, BW=119KiB/s (122kB/s)(6032KiB/50742msec); 0 zone resets clat (msec): min=43, max=291, avg=105.19, stdev=38.35 lat (msec): min=43, max=291, avg=105.19, stdev=38.35 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 75], | 30.00th=[ 83], 40.00th=[ 90], 50.00th=[ 97], 60.00th=[ 107], | 70.00th=[ 116], 80.00th=[ 130], 90.00th=[ 157], 95.00th=[ 180], | 99.00th=[ 247], 99.50th=[ 255], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 192, per=24.42%, avg=118.18, stdev=37.69, samples=100 iops : min= 1, max= 12, avg= 6.68, stdev= 2.45, samples=100 lat (msec) : 10=2.99%, 20=26.56%, 50=16.02%, 100=29.56%, 250=24.48% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=3.00%, ctx=1585, 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=147700: Fri Oct 10 17:04:12 2025 read: IOPS=7, BW=117KiB/s (120kB/s)(6032KiB/51394msec) clat (msec): min=6, max=266, avg=26.47, stdev=25.67 lat (msec): min=6, max=266, avg=26.47, stdev=25.67 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 13], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 24], 80.00th=[ 35], 90.00th=[ 49], 95.00th=[ 79], | 99.00th=[ 129], 99.50th=[ 190], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 31, max= 415, per=26.11%, avg=120.10, stdev=71.05, samples=99 iops : min= 1, max= 25, avg= 6.81, stdev= 4.46, samples=99 write: IOPS=7, BW=122KiB/s (125kB/s)(6256KiB/51394msec); 0 zone resets clat (msec): min=41, max=321, avg=105.47, stdev=38.99 lat (msec): min=41, max=321, avg=105.48, stdev=38.99 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 77], | 30.00th=[ 83], 40.00th=[ 89], 50.00th=[ 96], 60.00th=[ 104], | 70.00th=[ 116], 80.00th=[ 131], 90.00th=[ 155], 95.00th=[ 182], | 99.00th=[ 241], 99.50th=[ 279], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 224, per=25.12%, avg=121.57, stdev=42.12, samples=102 iops : min= 1, max= 14, avg= 6.90, stdev= 2.77, samples=102 lat (msec) : 10=2.47%, 20=25.65%, 50=17.19%, 100=30.47%, 250=23.70% lat (msec) : 500=0.52% cpu : usr=0.07%, sys=2.84%, ctx=1506, 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=460KiB/s (471kB/s), 110KiB/s-123KiB/s (113kB/s-126kB/s), io=23.4MiB (24.5MB), run=50742-52050msec WRITE: bw=484KiB/s (496kB/s), 119KiB/s-126KiB/s (122kB/s-129kB/s), io=24.6MiB (25.8MB), run=50742-52050msec 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=147726: Fri Oct 10 17:04:25 2025 read: IOPS=1, BW=1585KiB/s (1623kB/s)(7168KiB/4523msec) clat (usec): min=836, max=1466.8k, avg=369254.19, stdev=493969.46 lat (usec): min=837, max=1466.8k, avg=369255.53, stdev=493969.18 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 840], 10.00th=[ 840], | 20.00th=[ 162530], 30.00th=[ 162530], 40.00th=[ 162530], | 50.00th=[ 214959], 60.00th=[ 258999], 70.00th=[ 258999], | 80.00th=[ 316670], 90.00th=[1468007], 95.00th=[1468007], | 99.00th=[1468007], 99.50th=[1468007], 99.90th=[1468007], | 99.95th=[1468007], 99.99th=[1468007] bw ( KiB/s): min= 2000, max= 4063, per=75.13%, avg=2991.75, stdev=1140.95, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1132KiB/s (1159kB/s)(5120KiB/4523msec); 0 zone resets clat (msec): min=103, max=643, avg=379.10, stdev=220.72 lat (msec): min=103, max=643, avg=379.22, stdev=220.68 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 558], 80.00th=[ 558], 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= 2011, max= 4079, per=48.48%, avg=2703.00, stdev=1191.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=19.77%, ctx=475, 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=147727: Fri Oct 10 17:04:25 2025 read: IOPS=0, BW=412KiB/s (422kB/s)(2048KiB/4974msec) clat (usec): min=987, max=229745, avg=115366.57, stdev=161756.64 lat (usec): min=988, max=229748, avg=115368.31, stdev=161757.67 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 988], 10.00th=[ 988], 20.00th=[ 988], | 30.00th=[ 988], 40.00th=[ 988], 50.00th=[ 988], 60.00th=[229639], | 70.00th=[229639], 80.00th=[229639], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 1980, max= 2039, per=50.46%, avg=2009.50, stdev=41.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2059KiB/s (2108kB/s)(10.0MiB/4974msec); 0 zone resets clat (msec): min=87, max=2150, avg=463.59, stdev=613.93 lat (msec): min=87, max=2150, avg=464.57, stdev=613.56 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 228], 50.00th=[ 251], 60.00th=[ 292], | 70.00th=[ 326], 80.00th=[ 393], 90.00th=[ 642], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 2023, max= 6095, per=58.09%, avg=3239.20, stdev=1809.32, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=21.27%, 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=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=147728: Fri Oct 10 17:04:25 2025 read: IOPS=1, BW=1195KiB/s (1224kB/s)(6144KiB/5142msec) clat (usec): min=791, max=365758, avg=177886.55, stdev=152037.08 lat (usec): min=793, max=365760, avg=177887.57, stdev=152036.84 clat percentiles (usec): | 1.00th=[ 791], 5.00th=[ 791], 10.00th=[ 791], 20.00th=[ 1336], | 30.00th=[ 1336], 40.00th=[158335], 50.00th=[158335], 60.00th=[267387], | 70.00th=[274727], 80.00th=[274727], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 2048, max= 4079, per=84.90%, avg=3380.67, stdev=1154.57, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1195KiB/s (1224kB/s)(6144KiB/5142msec); 0 zone resets clat (msec): min=336, max=2014, avg=664.85, stdev=663.32 lat (msec): min=336, max=2014, avg=664.97, stdev=663.30 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 418], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 1374, max= 2048, per=34.17%, avg=1905.40, stdev=297.13, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=8.33%, 500=66.67%, >=2000=8.33% cpu : usr=0.06%, sys=18.03%, ctx=284, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=147729: Fri Oct 10 17:04:25 2025 read: IOPS=1, BW=1184KiB/s (1213kB/s)(5120KiB/4323msec) clat (usec): min=1187, max=279813, avg=156534.40, stdev=143013.42 lat (usec): min=1189, max=279815, avg=156535.82, stdev=143013.26 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1188], 10.00th=[ 1188], 20.00th=[ 1188], | 30.00th=[ 1434], 40.00th=[ 1434], 50.00th=[229639], 60.00th=[229639], | 70.00th=[270533], 80.00th=[270533], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 2019, max= 6119, per=100.00%, avg=4069.00, stdev=2899.14, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1658KiB/s (1698kB/s)(7168KiB/4323msec); 0 zone resets clat (msec): min=125, max=1719, avg=472.45, stdev=561.95 lat (msec): min=125, max=1719, avg=472.54, stdev=561.95 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 127], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 347], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 409], 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= 2019, max= 4063, per=54.31%, avg=3028.25, stdev=1158.75, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 2=16.67%, 250=33.33%, 500=41.67%, 2000=8.33% cpu : usr=0.07%, sys=20.06%, ctx=215, 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=3983KiB/s (4078kB/s), 412KiB/s-1585KiB/s (422kB/s-1623kB/s), io=20.0MiB (20.0MB), run=4323-5142msec WRITE: bw=5576KiB/s (5710kB/s), 1132KiB/s-2059KiB/s (1159kB/s-2108kB/s), io=28.0MiB (29.4MB), run=4323-5142msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147721: Fri Oct 10 17:04:26 2025 read: IOPS=1, BW=1764KiB/s (1806kB/s)(7168KiB/4064msec) clat (msec): min=106, max=1214, avg=372.66, stdev=380.28 lat (msec): min=106, max=1214, avg=372.66, stdev=380.28 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 171], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 257], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 351], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1988, max= 4087, per=82.71%, avg=3050.50, stdev=1192.48, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1260KiB/s (1290kB/s)(5120KiB/4064msec); 0 zone resets clat (msec): min=197, max=326, avg=269.76, stdev=47.08 lat (msec): min=197, max=326, avg=270.14, stdev=47.21 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 2039, max= 4055, per=49.31%, avg=2546.25, stdev=1005.84, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=33.33%, 500=58.33%, 2000=8.33% cpu : usr=0.02%, sys=7.97%, ctx=99, 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=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=147722: Fri Oct 10 17:04:26 2025 read: IOPS=0, BW=371KiB/s (380kB/s)(2048KiB/5525msec) clat (msec): min=100, max=278, avg=189.46, stdev=126.21 lat (msec): min=100, max=278, avg=189.46, stdev=126.21 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=[ 279], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 1950, max= 2043, per=54.14%, avg=1996.50, stdev=65.76, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1853KiB/s (1898kB/s)(10.0MiB/5525msec); 0 zone resets clat (msec): min=139, max=1998, avg=510.29, stdev=574.56 lat (msec): min=139, max=1998, avg=510.42, stdev=574.54 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 169], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 384], 80.00th=[ 718], 90.00th=[ 810], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 2027, max= 6131, per=55.36%, avg=2858.60, stdev=1829.35, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.64, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=7.37%, ctx=108, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=147723: Fri Oct 10 17:04:26 2025 read: IOPS=1, BW=1204KiB/s (1233kB/s)(6144KiB/5102msec) clat (msec): min=94, max=283, avg=193.13, stdev=70.94 lat (msec): min=94, max=283, avg=193.13, stdev=70.94 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2027, max= 4087, per=69.21%, avg=2552.50, stdev=1023.05, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1204KiB/s (1233kB/s)(6144KiB/5102msec); 0 zone resets clat (msec): min=195, max=1949, avg=642.36, stdev=661.09 lat (msec): min=196, max=1950, avg=642.49, stdev=661.08 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 542], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 2003, max= 2048, per=39.35%, avg=2032.00, stdev=17.04, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=5.00%, ctx=72, 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=147724: Fri Oct 10 17:04:26 2025 read: IOPS=0, BW=922KiB/s (944kB/s)(5120KiB/5552msec) clat (msec): min=53, max=621, avg=273.32, stdev=253.29 lat (msec): min=53, max=621, avg=273.32, stdev=253.29 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 54], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 115], 60.00th=[ 115], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 4087, max= 4096, per=100.00%, avg=4091.50, stdev= 6.36, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1291KiB/s (1322kB/s)(7168KiB/5552msec); 0 zone resets clat (msec): min=161, max=2316, avg=581.61, stdev=785.20 lat (msec): min=161, max=2316, avg=581.70, stdev=785.20 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 167], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 201], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 634], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2031, max= 6131, per=69.06%, avg=3566.25, stdev=1956.09, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 1.71, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=6.70%, ctx=105, 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=3689KiB/s (3777kB/s), 371KiB/s-1764KiB/s (380kB/s-1806kB/s), io=20.0MiB (20.0MB), run=4064-5552msec WRITE: bw=5164KiB/s (5288kB/s), 1204KiB/s-1853KiB/s (1233kB/s-1898kB/s), io=28.0MiB (29.4MB), run=4064-5552msec 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=147737: Fri Oct 10 17:04:38 2025 read: IOPS=1, BW=4757KiB/s (4871kB/s)(12.0MiB/2583msec) clat (msec): min=603, max=939, avg=824.19, stdev=191.05 lat (msec): min=603, max=939, avg=824.19, stdev=191.05 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7984, max= 8175, per=100.00%, avg=8079.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=30.95%, ctx=1255, 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=147738: Fri Oct 10 17:04:38 2025 read: IOPS=0, BW=1128KiB/s (1155kB/s)(4096KiB/3632msec) clat (nsec): min=929177k, max=929177k, avg=929176928.00, stdev= 0.00 lat (nsec): min=929178k, max=929178k, avg=929178334.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2256KiB/s (2310kB/s)(8192KiB/3632msec); 0 zone resets clat (msec): min=965, max=1577, avg=1271.81, stdev=432.76 lat (msec): min=966, max=1578, avg=1272.41, stdev=432.52 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8175, max= 8175, per=90.61%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=9.14%, ctx=225, 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=147739: Fri Oct 10 17:04:38 2025 write: IOPS=1, BW=7562KiB/s (7743kB/s)(12.0MiB/1625msec); 0 zone resets clat (msec): min=286, max=652, avg=503.51, stdev=192.36 lat (msec): min=286, max=652, avg=503.98, stdev=192.40 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 651], 80.00th=[ 651], 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=15968, max=15968, per=100.00%, avg=15968.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=19.58%, ctx=96, 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=147741: Fri Oct 10 17:04:38 2025 write: IOPS=1, BW=4867KiB/s (4983kB/s)(12.0MiB/2525msec); 0 zone resets clat (msec): min=573, max=1206, avg=813.51, stdev=342.69 lat (msec): min=574, max=1206, avg=814.16, stdev=342.85 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7984, max= 8143, per=89.38%, avg=8063.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=7.69%, ctx=220, 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=4511KiB/s (4619kB/s), 1128KiB/s-4757KiB/s (1155kB/s-4871kB/s), io=16.0MiB (16.8MB), run=2583-3632msec WRITE: bw=9022KiB/s (9239kB/s), 2256KiB/s-7562KiB/s (2310kB/s-7743kB/s), io=32.0MiB (33.6MB), run=1625-3632msec rand-rw: (groupid=0, jobs=1): err= 0: pid=147742: Fri Oct 10 17:04:38 2025 read: IOPS=1, BW=5063KiB/s (5185kB/s)(12.0MiB/2427msec) clat (msec): min=641, max=864, avg=780.23, stdev=121.35 lat (msec): min=641, max=864, avg=780.23, stdev=121.35 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.05%, 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=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=147743: Fri Oct 10 17:04:38 2025 read: IOPS=0, BW=1171KiB/s (1199kB/s)(4096KiB/3498msec) clat (nsec): min=1018.5M, max=1018.5M, avg=1018505039.00, stdev= 0.00 lat (nsec): min=1018.5M, max=1018.5M, avg=1018508669.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2342KiB/s (2398kB/s)(8192KiB/3498msec); 0 zone resets clat (msec): min=470, max=1894, avg=1182.18, stdev=1006.98 lat (msec): min=470, max=1894, avg=1182.58, stdev=1006.96 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 1888], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8078, max= 8078, per=86.24%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.95%, ctx=66, 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=147744: Fri Oct 10 17:04:38 2025 write: IOPS=0, BW=3681KiB/s (3770kB/s)(12.0MiB/3338msec); 0 zone resets clat (msec): min=298, max=1575, avg=1056.35, stdev=671.23 lat (msec): min=298, max=1576, avg=1056.92, stdev=671.56 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8078, max= 8175, per=86.76%, avg=8126.50, stdev=68.59, 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=11.42%, ctx=113, 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=147745: Fri Oct 10 17:04:38 2025 write: IOPS=0, BW=4049KiB/s (4146kB/s)(12.0MiB/3035msec); 0 zone resets clat (msec): min=362, max=1935, avg=960.49, stdev=851.49 lat (msec): min=364, max=1935, avg=961.48, stdev=850.85 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 5497, max= 8143, per=72.81%, avg=6820.00, stdev=1871.00, 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=0.07%, sys=8.90%, ctx=91, 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=4684KiB/s (4796kB/s), 1171KiB/s-5063KiB/s (1199kB/s-5185kB/s), io=16.0MiB (16.8MB), run=2427-3498msec WRITE: bw=9368KiB/s (9592kB/s), 2342KiB/s-4049KiB/s (2398kB/s-4146kB/s), io=32.0MiB (33.6MB), run=3035-3498msec