== sanity test 398b: DIO and buffer IO race ============== 17:13:13 (1790975593) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.02171 s, 7.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146469: Fri Oct 2 17:15:34 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5992KiB/119328msec) clat (usec): min=33, max=703270, avg=38539.69, stdev=34840.41 lat (usec): min=33, max=703271, avg=38541.05, stdev=34840.72 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 71], 20.00th=[ 15795], | 30.00th=[ 21890], 40.00th=[ 26870], 50.00th=[ 32375], 60.00th=[ 38536], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 91751], | 99.00th=[132645], 99.50th=[166724], 99.90th=[346031], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 8, max= 127, per=24.88%, avg=49.76, stdev=20.12, samples=234 iops : min= 2, max= 31, avg=11.82, stdev= 5.06, samples=234 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6296KiB/119328msec); 0 zone resets clat (usec): min=857, max=471251, avg=38913.04, stdev=40982.61 lat (usec): min=858, max=471253, avg=38914.97, stdev=40982.62 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1287], 20.00th=[ 3785], | 30.00th=[ 8225], 40.00th=[ 17695], 50.00th=[ 28705], 60.00th=[ 39584], | 70.00th=[ 53216], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[177210], 99.50th=[196084], 99.90th=[442500], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 142, per=24.83%, avg=52.15, stdev=23.22, samples=235 iops : min= 1, max= 35, avg=12.42, stdev= 5.84, samples=235 lat (usec) : 50=0.75%, 100=4.69%, 250=0.20%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.39% lat (msec) : 2=7.36%, 4=3.16%, 10=6.38%, 20=11.49%, 50=35.55% lat (msec) : 100=24.77%, 250=4.98%, 500=0.13%, 750=0.03% cpu : usr=0.09%, sys=5.52%, ctx=6226, 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=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=146470: Fri Oct 2 17:15:34 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5940KiB/118629msec) clat (usec): min=31, max=721782, avg=37480.16, stdev=34260.90 lat (usec): min=31, max=721783, avg=37489.52, stdev=34257.49 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 68], 20.00th=[ 15795], | 30.00th=[ 22152], 40.00th=[ 27132], 50.00th=[ 32900], 60.00th=[ 38536], | 70.00th=[ 44827], 80.00th=[ 55837], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[129500], 99.50th=[141558], 99.90th=[404751], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 7, max= 119, per=24.98%, avg=49.97, stdev=21.20, samples=232 iops : min= 1, max= 29, avg=11.88, stdev= 5.35, samples=232 write: IOPS=13, BW=53.5KiB/s (54.8kB/s)(6348KiB/118629msec); 0 zone resets clat (usec): min=846, max=501245, avg=39444.05, stdev=43275.91 lat (usec): min=847, max=501247, avg=39447.48, stdev=43275.99 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1270], 20.00th=[ 3687], | 30.00th=[ 7963], 40.00th=[ 18482], 50.00th=[ 28443], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 91751], 95.00th=[116917], | 99.00th=[181404], 99.50th=[225444], 99.90th=[463471], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 7, max= 134, per=25.34%, avg=53.21, stdev=23.24, samples=233 iops : min= 1, max= 33, avg=12.70, stdev= 5.83, samples=233 lat (usec) : 50=0.94%, 100=4.72%, 250=0.29%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.75%, 4=3.06%, 10=6.38%, 20=10.68%, 50=37.76% lat (msec) : 100=22.59%, 250=5.31%, 500=0.16%, 750=0.07% cpu : usr=0.07%, sys=5.29%, ctx=6074, 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=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=146471: Fri Oct 2 17:15:34 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(6028KiB/119684msec) clat (usec): min=33, max=669872, avg=38576.97, stdev=35476.65 lat (usec): min=33, max=669874, avg=38584.88, stdev=35472.33 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 80], 20.00th=[ 16450], | 30.00th=[ 21890], 40.00th=[ 26870], 50.00th=[ 32375], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 57410], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[160433], 99.50th=[196084], 99.90th=[341836], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=49.70, stdev=22.45, samples=236 iops : min= 1, max= 31, avg=11.81, stdev= 5.66, samples=236 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(6260KiB/119684msec); 0 zone resets clat (usec): min=686, max=314680, avg=39086.50, stdev=40347.93 lat (usec): min=687, max=314682, avg=39089.91, stdev=40348.01 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1139], 10.00th=[ 1237], 20.00th=[ 3130], | 30.00th=[ 7177], 40.00th=[ 18220], 50.00th=[ 29492], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[173016], 99.50th=[219153], 99.90th=[295699], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 128, per=24.53%, avg=51.52, stdev=22.06, samples=236 iops : min= 1, max= 32, avg=12.26, stdev= 5.54, samples=236 lat (usec) : 50=0.68%, 100=4.43%, 250=0.26%, 750=0.03%, 1000=0.46% lat (msec) : 2=7.85%, 4=3.81%, 10=5.50%, 20=10.97%, 50=37.50% lat (msec) : 100=23.14%, 250=5.11%, 500=0.23%, 750=0.03% cpu : usr=0.08%, sys=5.34%, ctx=6146, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146472: Fri Oct 2 17:15:34 2026 read: IOPS=12, BW=51.6KiB/s (52.9kB/s)(6052KiB/117192msec) clat (usec): min=34, max=515435, avg=37514.60, stdev=32279.04 lat (usec): min=34, max=515437, avg=37517.71, stdev=32277.06 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 15664], | 30.00th=[ 20841], 40.00th=[ 26084], 50.00th=[ 30802], 60.00th=[ 38011], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[135267], 99.50th=[166724], 99.90th=[261096], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 111, per=25.80%, avg=51.60, stdev=21.61, samples=229 iops : min= 1, max= 27, avg=12.30, stdev= 5.47, samples=229 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6236KiB/117192msec); 0 zone resets clat (usec): min=708, max=670272, avg=38548.98, stdev=44082.44 lat (usec): min=710, max=670273, avg=38551.46, stdev=44081.73 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1106], 10.00th=[ 1221], 20.00th=[ 2540], | 30.00th=[ 7111], 40.00th=[ 16319], 50.00th=[ 27657], 60.00th=[ 38011], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[116917], | 99.00th=[162530], 99.50th=[196084], 99.90th=[429917], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 159, per=25.19%, avg=52.91, stdev=21.92, samples=230 iops : min= 1, max= 39, avg=12.61, stdev= 5.51, samples=230 lat (usec) : 50=1.11%, 100=4.85%, 250=0.26%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=8.92%, 4=3.03%, 10=6.18%, 20=11.17%, 50=36.10% lat (msec) : 100=22.62%, 250=5.18%, 500=0.16%, 750=0.07% cpu : usr=0.06%, sys=5.15%, ctx=5974, 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=201KiB/s (205kB/s), 50.1KiB/s-51.6KiB/s (51.3kB/s-52.9kB/s), io=23.4MiB (24.6MB), run=117192-119684msec WRITE: bw=210KiB/s (215kB/s), 52.3KiB/s-53.5KiB/s (53.6kB/s-54.8kB/s), io=24.6MiB (25.7MB), run=117192-119684msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146474: Fri Oct 2 17:17:58 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5992KiB/261715msec) clat (msec): min=5, max=757, avg=31.80, stdev=38.36 lat (msec): min=5, max=757, avg=31.80, stdev=38.36 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 71], 95.00th=[ 100], | 99.00th=[ 171], 99.50th=[ 197], 99.90th=[ 359], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 95, per=28.19%, avg=25.65, stdev=17.20, samples=452 iops : min= 1, max= 23, avg= 5.78, stdev= 4.33, samples=452 write: IOPS=6, BW=24.1KiB/s (24.6kB/s)(6296KiB/261715msec); 0 zone resets clat (msec): min=29, max=541, avg=135.92, stdev=63.97 lat (msec): min=29, max=541, avg=135.93, stdev=63.97 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 83], | 30.00th=[ 95], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 184], 90.00th=[ 220], 95.00th=[ 259], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 523], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 64, per=24.93%, avg=23.69, stdev=10.69, samples=512 iops : min= 1, max= 16, avg= 5.28, stdev= 2.73, samples=512 lat (msec) : 10=5.53%, 20=18.95%, 50=17.38%, 100=21.78%, 250=33.40% lat (msec) : 500=2.86%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5111, 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=146475: Fri Oct 2 17:17:58 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(5940KiB/262620msec) clat (msec): min=5, max=785, avg=31.36, stdev=39.14 lat (msec): min=5, max=785, avg=31.36, stdev=39.14 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 66], 95.00th=[ 92], | 99.00th=[ 161], 99.50th=[ 180], 99.90th=[ 592], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 103, per=28.07%, avg=25.54, stdev=17.09, samples=449 iops : min= 1, max= 25, avg= 5.75, stdev= 4.30, samples=449 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6348KiB/262620msec); 0 zone resets clat (msec): min=33, max=621, avg=136.02, stdev=67.89 lat (msec): min=33, max=621, avg=136.02, stdev=67.89 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 83], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 121], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 224], 95.00th=[ 271], | 99.00th=[ 368], 99.50th=[ 401], 99.90th=[ 489], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 71, per=24.89%, avg=23.65, stdev=11.08, samples=517 iops : min= 1, max= 17, avg= 5.27, stdev= 2.82, samples=517 lat (msec) : 10=5.99%, 20=18.62%, 50=17.19%, 100=22.36%, 250=32.36% lat (msec) : 500=3.39%, 750=0.07%, 1000=0.03% cpu : usr=0.03%, sys=1.06%, ctx=4988, 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=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=146476: Fri Oct 2 17:17:58 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6028KiB/259656msec) clat (msec): min=4, max=375, avg=33.39, stdev=35.34 lat (msec): min=4, max=375, avg=33.39, stdev=35.34 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 46], 90.00th=[ 83], 95.00th=[ 104], | 99.00th=[ 169], 99.50th=[ 209], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 110, per=27.77%, avg=25.27, stdev=18.44, samples=461 iops : min= 1, max= 27, avg= 5.69, stdev= 4.64, samples=461 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6260KiB/259656msec); 0 zone resets clat (msec): min=36, max=895, avg=133.66, stdev=67.64 lat (msec): min=36, max=895, avg=133.66, stdev=67.64 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 91], 40.00th=[ 105], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 180], 90.00th=[ 220], 95.00th=[ 255], | 99.00th=[ 342], 99.50th=[ 422], 99.90th=[ 625], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 56, per=25.00%, avg=23.75, stdev=11.30, samples=508 iops : min= 1, max= 14, avg= 5.30, stdev= 2.88, samples=508 lat (msec) : 10=5.01%, 20=19.30%, 50=17.09%, 100=23.60%, 250=32.06% lat (msec) : 500=2.83%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5109, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146477: Fri Oct 2 17:17:58 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6052KiB/261027msec) clat (msec): min=5, max=599, avg=31.83, stdev=35.37 lat (msec): min=5, max=599, avg=31.83, stdev=35.37 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 44], 90.00th=[ 70], 95.00th=[ 92], | 99.00th=[ 163], 99.50th=[ 184], 99.90th=[ 376], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 111, per=28.08%, avg=25.55, stdev=18.34, samples=458 iops : min= 1, max= 27, avg= 5.76, stdev= 4.63, samples=458 write: IOPS=5, BW=23.9KiB/s (24.5kB/s)(6236KiB/261027msec); 0 zone resets clat (msec): min=37, max=844, avg=136.44, stdev=68.23 lat (msec): min=37, max=844, avg=136.44, stdev=68.23 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 83], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 224], 95.00th=[ 266], | 99.00th=[ 351], 99.50th=[ 401], 99.90th=[ 550], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 56, per=24.77%, avg=23.53, stdev=10.85, samples=511 iops : min= 1, max= 14, avg= 5.24, stdev= 2.76, samples=511 lat (msec) : 10=6.02%, 20=18.10%, 50=17.64%, 100=22.88%, 250=31.87% lat (msec) : 500=3.32%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.03%, ctx=5224, 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=91.4KiB/s (93.6kB/s), 22.6KiB/s-23.2KiB/s (23.2kB/s-23.8kB/s), io=23.4MiB (24.6MB), run=259656-262620msec WRITE: bw=95.7KiB/s (98.0kB/s), 23.9KiB/s-24.2KiB/s (24.5kB/s-24.8kB/s), io=24.6MiB (25.7MB), run=259656-262620msec 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=146527: Fri Oct 2 17:18:31 2026 read: IOPS=16, BW=262KiB/s (268kB/s)(5920KiB/22601msec) clat (usec): min=26, max=138344, avg=31540.32, stdev=27240.59 lat (usec): min=26, max=138345, avg=31541.59, stdev=27240.86 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 71], | 30.00th=[ 15533], 40.00th=[ 23462], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 43254], 80.00th=[ 51643], 90.00th=[ 65274], 95.00th=[ 79168], | 99.00th=[111674], 99.50th=[124257], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 92, max= 463, per=25.55%, avg=257.27, stdev=93.64, samples=44 iops : min= 5, max= 28, avg=15.36, stdev= 5.89, samples=44 write: IOPS=17, BW=282KiB/s (289kB/s)(6368KiB/22601msec); 0 zone resets clat (usec): min=1220, max=239129, avg=27247.92, stdev=31873.34 lat (usec): min=1222, max=239132, avg=27253.84, stdev=31873.65 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1614], 10.00th=[ 1778], 20.00th=[ 3752], | 30.00th=[ 5932], 40.00th=[ 8291], 50.00th=[ 12911], 60.00th=[ 21627], | 70.00th=[ 34866], 80.00th=[ 50594], 90.00th=[ 69731], 95.00th=[ 89654], | 99.00th=[154141], 99.50th=[168821], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 93, max= 679, per=26.45%, avg=280.14, stdev=104.03, samples=44 iops : min= 5, max= 42, avg=16.82, stdev= 6.57, samples=44 lat (usec) : 50=2.21%, 100=9.77%, 250=0.65%, 1000=0.13% lat (msec) : 2=6.64%, 4=4.56%, 10=12.37%, 20=11.07%, 50=31.77% lat (msec) : 100=17.84%, 250=2.99% cpu : usr=0.08%, sys=6.93%, ctx=1324, 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=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=146528: Fri Oct 2 17:18:31 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(5744KiB/23714msec) clat (usec): min=38, max=204379, avg=33876.80, stdev=29776.43 lat (usec): min=38, max=204381, avg=33877.99, stdev=29776.36 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 81], | 30.00th=[ 17957], 40.00th=[ 24249], 50.00th=[ 30540], 60.00th=[ 37487], | 70.00th=[ 46400], 80.00th=[ 56361], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[139461], 99.50th=[181404], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 60, max= 538, per=23.86%, avg=240.30, stdev=101.36, samples=46 iops : min= 3, max= 33, avg=14.30, stdev= 6.37, samples=46 write: IOPS=17, BW=276KiB/s (283kB/s)(6544KiB/23714msec); 0 zone resets clat (usec): min=1058, max=273395, avg=27747.37, stdev=32988.35 lat (usec): min=1060, max=273396, avg=27749.17, stdev=32988.38 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1598], 10.00th=[ 1811], 20.00th=[ 2900], | 30.00th=[ 5211], 40.00th=[ 8455], 50.00th=[ 15926], 60.00th=[ 24511], | 70.00th=[ 35914], 80.00th=[ 46400], 90.00th=[ 68682], 95.00th=[ 86508], | 99.00th=[156238], 99.50th=[162530], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 126, max= 480, per=25.69%, avg=272.09, stdev=97.46, samples=46 iops : min= 7, max= 30, avg=16.33, stdev= 6.18, samples=46 lat (usec) : 50=1.56%, 100=8.46%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=6.90%, 4=6.25%, 10=10.94%, 20=9.24%, 50=33.59% lat (msec) : 100=19.66%, 250=2.47%, 500=0.13% cpu : usr=0.10%, sys=6.69%, ctx=1373, 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=146529: Fri Oct 2 17:18:31 2026 read: IOPS=16, BW=263KiB/s (269kB/s)(6256KiB/23778msec) clat (usec): min=33, max=153758, avg=32352.72, stdev=28540.78 lat (usec): min=34, max=153759, avg=32353.82, stdev=28540.82 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 16450], 40.00th=[ 22938], 50.00th=[ 30278], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 52167], 90.00th=[ 69731], 95.00th=[ 87557], | 99.00th=[114820], 99.50th=[152044], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 121, max= 441, per=25.89%, avg=260.70, stdev=85.76, samples=46 iops : min= 7, max= 27, avg=15.61, stdev= 5.39, samples=46 write: IOPS=15, BW=254KiB/s (260kB/s)(6032KiB/23778msec); 0 zone resets clat (usec): min=1161, max=180897, avg=28989.15, stdev=29683.17 lat (usec): min=1161, max=180898, avg=28991.10, stdev=29683.05 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1549], 10.00th=[ 1795], 20.00th=[ 4146], | 30.00th=[ 6259], 40.00th=[ 10028], 50.00th=[ 18482], 60.00th=[ 26608], | 70.00th=[ 40633], 80.00th=[ 52167], 90.00th=[ 72877], 95.00th=[ 91751], | 99.00th=[116917], 99.50th=[131597], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 92, max= 383, per=23.20%, avg=245.65, stdev=91.77, samples=46 iops : min= 5, max= 23, avg=14.65, stdev= 5.80, samples=46 lat (usec) : 50=1.95%, 100=10.42%, 250=0.26% lat (msec) : 2=6.38%, 4=3.78%, 10=10.29%, 20=10.68%, 50=34.24% lat (msec) : 100=19.14%, 250=2.86% cpu : usr=0.08%, sys=6.11%, ctx=1336, 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=146530: Fri Oct 2 17:18:31 2026 read: IOPS=16, BW=258KiB/s (264kB/s)(6032KiB/23357msec) clat (usec): min=37, max=155336, avg=31077.49, stdev=27249.72 lat (usec): min=37, max=155336, avg=31087.09, stdev=27249.44 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 16188], 40.00th=[ 23462], 50.00th=[ 28705], 60.00th=[ 36439], | 70.00th=[ 42206], 80.00th=[ 50594], 90.00th=[ 68682], 95.00th=[ 83362], | 99.00th=[106431], 99.50th=[145753], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 95, max= 497, per=25.61%, avg=257.85, stdev=101.48, samples=46 iops : min= 5, max= 31, avg=15.43, stdev= 6.44, samples=46 write: IOPS=16, BW=268KiB/s (274kB/s)(6256KiB/23357msec); 0 zone resets clat (usec): min=1348, max=154731, avg=29335.31, stdev=31579.47 lat (usec): min=1351, max=154732, avg=29342.82, stdev=31577.46 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1631], 10.00th=[ 1827], 20.00th=[ 3785], | 30.00th=[ 6259], 40.00th=[ 10290], 50.00th=[ 16581], 60.00th=[ 25297], | 70.00th=[ 38536], 80.00th=[ 51119], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[135267], 99.50th=[147850], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 92, max= 507, per=25.31%, avg=268.02, stdev=91.83, samples=46 iops : min= 5, max= 31, avg=16.07, stdev= 5.71, samples=46 lat (usec) : 50=2.08%, 100=10.03%, 250=1.17% lat (msec) : 2=6.12%, 4=5.08%, 10=9.64%, 20=10.94%, 50=33.98% lat (msec) : 100=18.10%, 250=2.86% cpu : usr=0.07%, sys=6.56%, ctx=1341, 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=1007KiB/s (1031kB/s), 242KiB/s-263KiB/s (248kB/s-269kB/s), io=23.4MiB (24.5MB), run=22601-23778msec WRITE: bw=1060KiB/s (1085kB/s), 254KiB/s-282KiB/s (260kB/s-289kB/s), io=24.6MiB (25.8MB), run=22601-23778msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146532: Fri Oct 2 17:19:09 2026 read: IOPS=6, BW=96.0KiB/s (99.3kB/s)(5920KiB/61050msec) clat (msec): min=5, max=321, avg=33.78, stdev=36.57 lat (msec): min=5, max=321, avg=33.78, stdev=36.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 67], 95.00th=[ 94], | 99.00th=[ 184], 99.50th=[ 288], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 415, per=27.24%, avg=106.24, stdev=68.51, samples=109 iops : min= 1, max= 25, avg= 5.85, stdev= 4.35, samples=109 write: IOPS=6, BW=104KiB/s (107kB/s)(6368KiB/61050msec); 0 zone resets clat (msec): min=34, max=411, avg=121.82, stdev=55.36 lat (msec): min=34, max=411, avg=121.83, stdev=55.37 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 108], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 194], 95.00th=[ 245], | 99.00th=[ 317], 99.50th=[ 363], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 30, max= 223, per=25.82%, avg=106.14, stdev=43.94, samples=118 iops : min= 1, max= 13, avg= 5.84, stdev= 2.83, samples=118 lat (msec) : 10=3.78%, 20=17.32%, 50=20.70%, 100=25.39%, 250=30.34% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.39%, ctx=1410, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146533: Fri Oct 2 17:19:09 2026 read: IOPS=5, BW=93.7KiB/s (95.9kB/s)(5744KiB/61307msec) clat (msec): min=5, max=282, avg=35.66, stdev=36.21 lat (msec): min=5, max=282, avg=35.67, stdev=36.21 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 71], 95.00th=[ 105], | 99.00th=[ 190], 99.50th=[ 262], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 23, max= 320, per=26.43%, avg=103.07, stdev=68.51, samples=110 iops : min= 1, max= 20, avg= 5.65, stdev= 4.35, samples=110 write: IOPS=6, BW=107KiB/s (109kB/s)(6544KiB/61307msec); 0 zone resets clat (msec): min=34, max=302, avg=118.38, stdev=48.24 lat (msec): min=34, max=302, avg=118.39, stdev=48.24 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 117], | 70.00th=[ 130], 80.00th=[ 153], 90.00th=[ 199], 95.00th=[ 224], | 99.00th=[ 259], 99.50th=[ 262], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 223, per=26.30%, avg=108.08, stdev=41.85, samples=119 iops : min= 1, max= 13, avg= 5.97, stdev= 2.71, samples=119 lat (msec) : 10=3.12%, 20=15.23%, 50=21.48%, 100=27.08%, 250=32.16% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.27%, ctx=1328, 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=146534: Fri Oct 2 17:19:09 2026 read: IOPS=6, BW=107KiB/s (109kB/s)(6256KiB/58546msec) clat (msec): min=5, max=328, avg=33.01, stdev=34.24 lat (msec): min=5, max=328, avg=33.01, stdev=34.23 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 59], 95.00th=[ 83], | 99.00th=[ 218], 99.50th=[ 255], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 319, per=29.85%, avg=116.42, stdev=69.34, samples=106 iops : min= 1, max= 19, avg= 6.48, stdev= 4.39, samples=106 write: IOPS=6, BW=103KiB/s (106kB/s)(6032KiB/58546msec); 0 zone resets clat (msec): min=39, max=293, avg=120.77, stdev=51.57 lat (msec): min=39, max=293, avg=120.77, stdev=51.57 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 110], 60.00th=[ 122], | 70.00th=[ 138], 80.00th=[ 157], 90.00th=[ 190], 95.00th=[ 224], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 224, per=25.15%, avg=103.37, stdev=41.24, samples=114 iops : min= 1, max= 14, avg= 5.68, stdev= 2.69, samples=114 lat (msec) : 10=2.60%, 20=16.80%, 50=24.87%, 100=25.78%, 250=28.13% lat (msec) : 500=1.82% cpu : usr=0.04%, sys=1.37%, ctx=1292, 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=146535: Fri Oct 2 17:19:09 2026 read: IOPS=6, BW=98.7KiB/s (101kB/s)(6032KiB/61095msec) clat (msec): min=7, max=294, avg=32.22, stdev=29.39 lat (msec): min=7, max=294, avg=32.23, stdev=29.39 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 66], 95.00th=[ 89], | 99.00th=[ 150], 99.50th=[ 203], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 288, per=27.45%, avg=107.07, stdev=63.51, samples=110 iops : min= 1, max= 18, avg= 5.91, stdev= 4.07, samples=110 write: IOPS=6, BW=102KiB/s (105kB/s)(6256KiB/61095msec); 0 zone resets clat (msec): min=44, max=429, avg=124.95, stdev=54.10 lat (msec): min=44, max=429, avg=124.95, stdev=54.10 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 92], 40.00th=[ 102], 50.00th=[ 114], 60.00th=[ 126], | 70.00th=[ 136], 80.00th=[ 161], 90.00th=[ 192], 95.00th=[ 234], | 99.00th=[ 309], 99.50th=[ 351], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 30, max= 223, per=24.92%, avg=102.43, stdev=40.33, samples=120 iops : min= 1, max= 13, avg= 5.61, stdev= 2.62, samples=120 lat (msec) : 10=1.56%, 20=18.88%, 50=21.74%, 100=24.87%, 250=30.99% lat (msec) : 500=1.95% cpu : usr=0.06%, sys=1.38%, ctx=1292, 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=391KiB/s (400kB/s), 93.7KiB/s-107KiB/s (95.9kB/s-109kB/s), io=23.4MiB (24.5MB), run=58546-61307msec WRITE: bw=411KiB/s (421kB/s), 102KiB/s-107KiB/s (105kB/s-109kB/s), io=24.6MiB (25.8MB), run=58546-61307msec 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=146551: Fri Oct 2 17:19:31 2026 read: IOPS=1, BW=1252KiB/s (1283kB/s)(7168KiB/5723msec) clat (msec): min=74, max=930, avg=297.12, stdev=307.12 lat (msec): min=74, max=930, avg=297.12, stdev=307.12 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 91], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 376], 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= 1957, max= 5171, per=96.33%, avg=2793.50, stdev=1585.34, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=895KiB/s (916kB/s)(5120KiB/5723msec); 0 zone resets clat (msec): min=549, max=950, avg=681.84, stdev=183.95 lat (msec): min=550, max=950, avg=682.22, stdev=183.86 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1858, max= 2048, per=48.73%, avg=1978.25, stdev=83.40, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=16.67%, 500=16.67%, 750=25.00%, 1000=25.00% cpu : usr=0.00%, sys=2.83%, ctx=72, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146552: Fri Oct 2 17:19:31 2026 read: IOPS=0, BW=290KiB/s (297kB/s)(2048KiB/7061msec) clat (msec): min=139, max=259, avg=199.80, stdev=85.11 lat (msec): min=139, max=259, avg=199.81, stdev=85.10 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1673, max= 1858, per=60.88%, avg=1765.50, stdev=130.81, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1450KiB/s (1485kB/s)(10.0MiB/7061msec); 0 zone resets clat (msec): min=303, max=1267, avg=661.54, stdev=365.59 lat (msec): min=303, max=1267, avg=661.64, stdev=365.58 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 485], 60.00th=[ 550], | 70.00th=[ 760], 80.00th=[ 936], 90.00th=[ 1217], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1673, max= 4055, per=54.17%, avg=2199.50, stdev=759.25, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=8.33%, 500=50.00%, 750=8.33%, 1000=16.67%, 2000=16.67% cpu : usr=0.00%, sys=2.28%, ctx=86, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146553: Fri Oct 2 17:19:31 2026 read: IOPS=0, BW=912KiB/s (934kB/s)(6144KiB/6738msec) clat (msec): min=155, max=1024, avg=548.44, stdev=326.20 lat (msec): min=155, max=1024, avg=548.44, stdev=326.20 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 558], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1858, max= 4071, per=85.92%, avg=2491.75, stdev=1055.61, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=912KiB/s (934kB/s)(6144KiB/6738msec); 0 zone resets clat (msec): min=317, max=954, avg=544.28, stdev=279.63 lat (msec): min=317, max=954, avg=544.37, stdev=279.62 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 422], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1643, max= 2048, per=47.93%, avg=1945.80, stdev=170.64, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=8.33%, 500=50.00%, 750=8.33%, 1000=25.00%, 2000=8.33% cpu : usr=0.06%, sys=2.32%, ctx=150, 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=146554: Fri Oct 2 17:19:31 2026 read: IOPS=0, BW=780KiB/s (799kB/s)(5120KiB/6560msec) clat (msec): min=134, max=763, avg=337.45, stdev=255.22 lat (msec): min=134, max=763, avg=337.45, stdev=255.22 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 3915, max= 4096, per=100.00%, avg=4005.50, stdev=127.99, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1093KiB/s (1119kB/s)(7168KiB/6560msec); 0 zone resets clat (msec): min=178, max=1348, avg=669.27, stdev=449.80 lat (msec): min=178, max=1348, avg=669.36, stdev=449.81 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 296], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 584], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 1217], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1686, max= 2039, per=48.39%, avg=1964.83, stdev=137.15, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33%, 2000=16.67% cpu : usr=0.00%, sys=2.00%, ctx=94, 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=2900KiB/s (2970kB/s), 290KiB/s-1252KiB/s (297kB/s-1283kB/s), io=20.0MiB (20.0MB), run=5723-7061msec WRITE: bw=4061KiB/s (4158kB/s), 895KiB/s-1450KiB/s (916kB/s-1485kB/s), io=28.0MiB (29.4MB), run=5723-7061msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146556: Fri Oct 2 17:19:31 2026 read: IOPS=1, BW=1125KiB/s (1152kB/s)(7168KiB/6370msec) clat (usec): min=507, max=703517, avg=282742.06, stdev=245880.35 lat (usec): min=509, max=703518, avg=282928.95, stdev=245638.34 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 7373], | 30.00th=[200279], 40.00th=[200279], 50.00th=[316670], 60.00th=[325059], | 70.00th=[325059], 80.00th=[425722], 90.00th=[700449], 95.00th=[700449], | 99.00th=[700449], 99.50th=[700449], 99.90th=[700449], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 1572, max= 4055, per=80.91%, avg=2317.40, stdev=989.88, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=804KiB/s (823kB/s)(5120KiB/6370msec); 0 zone resets clat (msec): min=268, max=1123, avg=808.05, stdev=359.35 lat (msec): min=268, max=1123, avg=808.26, stdev=359.37 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1868, max= 2043, per=49.73%, avg=1994.25, stdev=84.44, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=8.33%, 500=33.33%, 750=16.67%, 1000=8.33% lat (msec) : 2000=16.67% cpu : usr=0.02%, sys=6.64%, ctx=294, 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=146557: Fri Oct 2 17:19:31 2026 read: IOPS=0, BW=286KiB/s (293kB/s)(2048KiB/7149msec) clat (usec): min=1464, max=212641, avg=107053.26, stdev=149324.49 lat (usec): min=1466, max=212644, avg=107055.22, stdev=149325.65 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1467], 10.00th=[ 1467], 20.00th=[ 1467], | 30.00th=[ 1467], 40.00th=[ 1467], 50.00th=[ 1467], 60.00th=[212861], | 70.00th=[212861], 80.00th=[212861], 90.00th=[212861], 95.00th=[212861], | 99.00th=[212861], 99.50th=[212861], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 1551, max= 1868, per=59.69%, avg=1709.50, stdev=224.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1432KiB/s (1467kB/s)(10.0MiB/7149msec); 0 zone resets clat (msec): min=294, max=1199, avg=661.57, stdev=323.18 lat (msec): min=294, max=1199, avg=662.28, stdev=323.41 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 380], 40.00th=[ 397], 50.00th=[ 550], 60.00th=[ 651], | 70.00th=[ 869], 80.00th=[ 961], 90.00th=[ 995], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1868, max= 4079, per=55.99%, avg=2245.38, stdev=743.20, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 2=8.33%, 250=8.33%, 500=33.33%, 750=16.67%, 1000=25.00% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.65%, ctx=236, 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=146558: Fri Oct 2 17:19:31 2026 read: IOPS=1, BW=1444KiB/s (1479kB/s)(6144KiB/4255msec) clat (usec): min=627, max=348274, avg=90806.31, stdev=134611.06 lat (usec): min=628, max=348276, avg=90807.62, stdev=134611.37 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 5211], | 30.00th=[ 5211], 40.00th=[ 5932], 50.00th=[ 5932], 60.00th=[ 63701], | 70.00th=[121111], 80.00th=[121111], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 2027, max= 4079, per=100.00%, avg=3281.00, stdev=1099.38, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1444KiB/s (1478kB/s)(6144KiB/4256msec); 0 zone resets clat (msec): min=460, max=750, avg=585.52, stdev=115.84 lat (msec): min=460, max=751, avg=585.62, stdev=115.80 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 592], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1868, max= 2039, per=48.73%, avg=1954.00, stdev=79.27, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 10=16.67%, 100=8.33%, 250=8.33%, 500=25.00%, 750=25.00% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=9.10%, ctx=125, 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=146559: Fri Oct 2 17:19:31 2026 read: IOPS=0, BW=843KiB/s (864kB/s)(5120KiB/6071msec) clat (msec): min=2, max=635, avg=236.92, stdev=259.96 lat (msec): min=2, max=635, avg=236.92, stdev=259.96 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 5], 40.00th=[ 5], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 2027, max= 5605, per=100.00%, avg=3816.00, stdev=2530.03, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1181KiB/s (1209kB/s)(7168KiB/6071msec); 0 zone resets clat (msec): min=323, max=1113, avg=680.62, stdev=301.92 lat (msec): min=323, max=1113, avg=680.69, stdev=301.91 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 393], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 735], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 986], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1654, max= 2043, per=48.99%, avg=1964.43, stdev=140.15, samples=7 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=7 lat (msec) : 4=8.33%, 10=8.33%, 500=41.67%, 750=16.67%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.05%, sys=8.60%, ctx=159, 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=2865KiB/s (2933kB/s), 286KiB/s-1444KiB/s (293kB/s-1479kB/s), io=20.0MiB (20.0MB), run=4255-7149msec WRITE: bw=4011KiB/s (4107kB/s), 804KiB/s-1444KiB/s (823kB/s-1478kB/s), io=28.0MiB (29.4MB), run=4256-7149msec 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=146566: Fri Oct 2 17:19:48 2026 read: IOPS=0, BW=3104KiB/s (3178kB/s)(12.0MiB/3959msec) clat (msec): min=688, max=1950, avg=1289.92, stdev=632.90 lat (msec): min=688, max=1950, avg=1289.92, stdev=632.90 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1955], 80.00th=[ 1955], 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= 8047, max= 8192, per=100.00%, avg=8119.50, stdev=102.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.05%, ctx=48, 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=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=146567: Fri Oct 2 17:19:48 2026 read: IOPS=0, BW=1157KiB/s (1185kB/s)(4096KiB/3539msec) clat (nsec): min=1191.7M, max=1191.7M, avg=1191744549.00, stdev= 0.00 lat (nsec): min=1191.7M, max=1191.7M, avg=1191745797.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 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= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2315KiB/s (2370kB/s)(8192KiB/3539msec); 0 zone resets clat (usec): min=1002.9k, max=1003.9k, avg=1003400.23, stdev=760.87 lat (usec): min=1003.3k, max=1004.4k, avg=1003853.65, stdev=787.42 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8078, max= 8078, per=92.80%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.11%, sys=3.08%, ctx=71, 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=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=146568: Fri Oct 2 17:19:48 2026 write: IOPS=0, BW=3326KiB/s (3405kB/s)(12.0MiB/3695msec); 0 zone resets clat (msec): min=590, max=1585, avg=1119.57, stdev=500.59 lat (msec): min=590, max=1585, avg=1119.83, stdev=500.64 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 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= 7937, max= 8078, per=91.99%, avg=8007.50, stdev=99.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.44%, ctx=83, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=146569: Fri Oct 2 17:19:48 2026 write: IOPS=0, BW=3265KiB/s (3343kB/s)(12.0MiB/3764msec); 0 zone resets clat (msec): min=578, max=2492, avg=1235.88, stdev=1088.41 lat (msec): min=579, max=2492, avg=1236.21, stdev=1088.39 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 5475, max= 8015, per=77.48%, avg=6745.00, stdev=1796.05, 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=0.03%, sys=3.88%, ctx=80, 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=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=4138KiB/s (4238kB/s), 1157KiB/s-3104KiB/s (1185kB/s-3178kB/s), io=16.0MiB (16.8MB), run=3539-3959msec WRITE: bw=8706KiB/s (8915kB/s), 2315KiB/s-3326KiB/s (2370kB/s-3405kB/s), io=32.0MiB (33.6MB), run=3539-3764msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146571: Fri Oct 2 17:19:51 2026 read: IOPS=0, BW=3399KiB/s (3481kB/s)(12.0MiB/3615msec) clat (msec): min=782, max=1577, avg=1204.72, stdev=399.94 lat (msec): min=782, max=1577, avg=1204.72, stdev=399.94 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 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= 7922, max= 8078, per=100.00%, avg=8000.00, stdev=110.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.17%, sys=10.15%, ctx=181, 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=146572: Fri Oct 2 17:19:51 2026 read: IOPS=0, BW=1051KiB/s (1076kB/s)(4096KiB/3898msec) clat (nsec): min=855831k, max=855831k, avg=855831367.00, stdev= 0.00 lat (nsec): min=855833k, max=855833k, avg=855832738.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 860], 80.00th=[ 860], 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= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2102KiB/s (2152kB/s)(8192KiB/3898msec); 0 zone resets clat (msec): min=1425, max=1604, avg=1515.35, stdev=126.39 lat (msec): min=1426, max=1614, avg=1520.64, stdev=133.35 clat percentiles (msec): | 1.00th=[ 1418], 5.00th=[ 1418], 10.00th=[ 1418], 20.00th=[ 1418], | 30.00th=[ 1418], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1603], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.11%, ctx=130, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146573: Fri Oct 2 17:19:51 2026 write: IOPS=0, BW=2776KiB/s (2843kB/s)(12.0MiB/4426msec); 0 zone resets clat (msec): min=1289, max=1658, avg=1456.14, stdev=186.91 lat (msec): min=1289, max=1658, avg=1456.42, stdev=186.93 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 7501, max= 8126, per=100.00%, avg=7813.50, stdev=441.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=3.25%, ctx=49, 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=146574: Fri Oct 2 17:19:51 2026 write: IOPS=1, BW=4192KiB/s (4293kB/s)(12.0MiB/2931msec); 0 zone resets clat (msec): min=581, max=1479, avg=961.46, stdev=464.91 lat (msec): min=582, max=1480, avg=961.81, stdev=464.93 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7922, max= 8110, per=100.00%, avg=8016.00, stdev=132.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.78%, ctx=55, 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=4203KiB/s (4304kB/s), 1051KiB/s-3399KiB/s (1076kB/s-3481kB/s), io=16.0MiB (16.8MB), run=3615-3898msec WRITE: bw=7404KiB/s (7581kB/s), 2102KiB/s-4192KiB/s (2152kB/s-4293kB/s), io=32.0MiB (33.6MB), run=2931-4426msec