== sanity test 398b: DIO and buffer IO race ============== 02:11:16 (1783145476) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.57449 s, 19.6 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=182048: Sat Jul 4 02:12:26 2026 read: IOPS=25, BW=101KiB/s (103kB/s)(5992KiB/59593msec) clat (usec): min=47, max=1112.8k, avg=21540.65, stdev=30195.50 lat (usec): min=48, max=1112.8k, avg=21541.68, stdev=30195.51 clat percentiles (usec): | 1.00th=[ 122], 5.00th=[ 8160], 10.00th=[ 9634], | 20.00th=[ 11863], 30.00th=[ 14091], 40.00th=[ 16712], | 50.00th=[ 19006], 60.00th=[ 21627], 70.00th=[ 24773], | 80.00th=[ 28443], 90.00th=[ 34341], 95.00th=[ 40633], | 99.00th=[ 58983], 99.50th=[ 66847], 99.90th=[ 84411], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 13, max= 184, per=25.60%, avg=101.11, stdev=32.98, samples=117 iops : min= 3, max= 46, avg=24.91, stdev= 8.29, samples=117 write: IOPS=26, BW=106KiB/s (108kB/s)(6296KiB/59593msec); 0 zone resets clat (usec): min=743, max=90837, avg=17223.62, stdev=12550.16 lat (usec): min=744, max=90839, avg=17225.65, stdev=12549.30 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 2802], 10.00th=[ 3458], 20.00th=[ 5866], | 30.00th=[ 9110], 40.00th=[11731], 50.00th=[14615], 60.00th=[17695], | 70.00th=[21365], 80.00th=[26870], 90.00th=[34866], 95.00th=[40633], | 99.00th=[54789], 99.50th=[61080], 99.90th=[86508], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 47, max= 214, per=25.97%, avg=107.25, stdev=33.43, samples=116 iops : min= 11, max= 53, avg=26.45, stdev= 8.39, samples=116 lat (usec) : 50=0.03%, 100=0.16%, 250=0.68%, 750=0.03%, 1000=0.23% lat (msec) : 2=1.14%, 4=5.37%, 10=14.94%, 20=38.28%, 50=37.27% lat (msec) : 100=1.82%, 2000=0.03% cpu : usr=0.12%, sys=26.41%, ctx=10227, 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=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=182049: Sat Jul 4 02:12:26 2026 read: IOPS=24, BW=98.3KiB/s (101kB/s)(5940KiB/60400msec) clat (usec): min=88, max=121035, avg=21350.33, stdev=11329.83 lat (usec): min=89, max=121037, avg=21351.28, stdev=11329.93 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 7832], 10.00th=[ 9503], 20.00th=[ 12125], | 30.00th=[ 14877], 40.00th=[ 17171], 50.00th=[ 19268], 60.00th=[ 22152], | 70.00th=[ 25560], 80.00th=[ 29492], 90.00th=[ 36439], 95.00th=[ 42206], | 99.00th=[ 54264], 99.50th=[ 62129], 99.90th=[ 74974], 99.95th=[121111], | 99.99th=[121111] bw ( KiB/s): min= 6, max= 192, per=25.08%, avg=99.08, stdev=30.65, samples=119 iops : min= 1, max= 48, avg=24.40, stdev= 7.73, samples=119 write: IOPS=26, BW=105KiB/s (108kB/s)(6348KiB/60400msec); 0 zone resets clat (usec): min=718, max=1032.2k, avg=17948.43, stdev=28675.23 lat (usec): min=719, max=1032.2k, avg=17950.51, stdev=28675.08 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2900], 10.00th=[ 3556], | 20.00th=[ 5669], 30.00th=[ 8455], 40.00th=[ 11338], | 50.00th=[ 14222], 60.00th=[ 17171], 70.00th=[ 21890], | 80.00th=[ 27657], 90.00th=[ 35390], 95.00th=[ 42730], | 99.00th=[ 55837], 99.50th=[ 68682], 99.90th=[ 93848], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 6, max= 223, per=25.57%, avg=105.62, stdev=36.81, samples=119 iops : min= 1, max= 55, avg=26.03, stdev= 9.20, samples=119 lat (usec) : 100=0.26%, 250=0.88%, 750=0.10%, 1000=0.16% lat (msec) : 2=0.39%, 4=5.96%, 10=16.18%, 20=35.38%, 50=38.48% lat (msec) : 100=2.15%, 250=0.03%, 2000=0.03% cpu : usr=0.11%, sys=25.88%, ctx=10273, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=182050: Sat Jul 4 02:12:26 2026 read: IOPS=25, BW=101KiB/s (103kB/s)(6028KiB/59955msec) clat (usec): min=57, max=1104.7k, avg=21536.23, stdev=30005.33 lat (usec): min=57, max=1104.7k, avg=21537.26, stdev=30005.34 clat percentiles (usec): | 1.00th=[ 124], 5.00th=[ 7832], 10.00th=[ 9503], | 20.00th=[ 12125], 30.00th=[ 14222], 40.00th=[ 16319], | 50.00th=[ 19006], 60.00th=[ 21627], 70.00th=[ 24773], | 80.00th=[ 28705], 90.00th=[ 34866], 95.00th=[ 40633], | 99.00th=[ 56886], 99.50th=[ 65799], 99.90th=[ 84411], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 6, max= 192, per=25.66%, avg=101.36, stdev=36.06, samples=118 iops : min= 1, max= 48, avg=24.97, stdev= 9.05, samples=118 write: IOPS=26, BW=104KiB/s (107kB/s)(6260KiB/59955msec); 0 zone resets clat (usec): min=703, max=76097, avg=17436.39, stdev=12677.43 lat (usec): min=703, max=76098, avg=17438.78, stdev=12678.44 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 2900], 10.00th=[ 3490], 20.00th=[ 5669], | 30.00th=[ 8848], 40.00th=[12256], 50.00th=[15008], 60.00th=[17695], | 70.00th=[21890], 80.00th=[26870], 90.00th=[34341], 95.00th=[42206], | 99.00th=[54789], 99.50th=[62129], 99.90th=[73925], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 20, max= 184, per=25.47%, avg=105.19, stdev=33.98, samples=118 iops : min= 5, max= 46, avg=25.94, stdev= 8.59, samples=118 lat (usec) : 100=0.33%, 250=0.72%, 500=0.03%, 750=0.07%, 1000=0.33% lat (msec) : 2=0.62%, 4=5.53%, 10=15.40%, 20=36.39%, 50=38.44% lat (msec) : 100=2.12%, 2000=0.03% cpu : usr=0.13%, sys=25.86%, ctx=10135, 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=182051: Sat Jul 4 02:12:26 2026 read: IOPS=24, BW=99.6KiB/s (102kB/s)(6052KiB/60742msec) clat (usec): min=36, max=1042.8k, avg=21808.10, stdev=28437.43 lat (usec): min=36, max=1042.8k, avg=21809.49, stdev=28437.34 clat percentiles (usec): | 1.00th=[ 121], 5.00th=[ 7701], 10.00th=[ 9634], | 20.00th=[ 12256], 30.00th=[ 14615], 40.00th=[ 16909], | 50.00th=[ 19006], 60.00th=[ 21890], 70.00th=[ 24773], | 80.00th=[ 29754], 90.00th=[ 35914], 95.00th=[ 41681], | 99.00th=[ 55313], 99.50th=[ 60556], 99.90th=[ 72877], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 39, max= 191, per=25.51%, avg=100.76, stdev=31.04, samples=118 iops : min= 9, max= 47, avg=24.82, stdev= 7.81, samples=118 write: IOPS=25, BW=103KiB/s (105kB/s)(6236KiB/60742msec); 0 zone resets clat (usec): min=778, max=102676, avg=17657.92, stdev=13090.64 lat (usec): min=778, max=102678, avg=17659.08, stdev=13090.68 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2900], 10.00th=[ 3621], 20.00th=[ 6128], | 30.00th=[ 9241], 40.00th=[ 11994], 50.00th=[ 14877], 60.00th=[ 17957], | 70.00th=[ 21890], 80.00th=[ 27919], 90.00th=[ 35390], 95.00th=[ 43254], | 99.00th=[ 56361], 99.50th=[ 69731], 99.90th=[ 91751], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 27, max= 216, per=24.98%, avg=103.17, stdev=32.77, samples=119 iops : min= 6, max= 54, avg=25.42, stdev= 8.27, samples=119 lat (usec) : 50=0.07%, 100=0.23%, 250=0.88%, 500=0.10%, 1000=0.16% lat (msec) : 2=0.94%, 4=4.88%, 10=14.88%, 20=37.40%, 50=38.61% lat (msec) : 100=1.79%, 250=0.03%, 2000=0.03% cpu : usr=0.12%, sys=26.00%, ctx=10430, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=395KiB/s (405kB/s), 98.3KiB/s-101KiB/s (101kB/s-103kB/s), io=23.4MiB (24.6MB), run=59593-60742msec WRITE: bw=414KiB/s (424kB/s), 103KiB/s-106KiB/s (105kB/s-108kB/s), io=24.6MiB (25.7MB), run=59593-60742msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182053: Sat Jul 4 02:12:34 2026 read: IOPS=21, BW=87.5KiB/s (89.6kB/s)(5992KiB/68477msec) clat (msec): min=3, max=1113, avg=20.30, stdev=31.62 lat (msec): min=3, max=1113, avg=20.30, stdev=31.62 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 40], 95.00th=[ 50], | 99.00th=[ 66], 99.50th=[ 73], 99.90th=[ 122], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 23, max= 328, per=25.39%, avg=88.62, stdev=57.28, samples=134 iops : min= 5, max= 82, avg=21.78, stdev=14.40, samples=134 write: IOPS=22, BW=91.9KiB/s (94.1kB/s)(6296KiB/68477msec); 0 zone resets clat (msec): min=4, max=120, avg=24.13, stdev=16.10 lat (msec): min=4, max=120, avg=24.13, stdev=16.10 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 46], 95.00th=[ 54], | 99.00th=[ 80], 99.50th=[ 99], 99.90th=[ 113], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 16, max= 328, per=25.41%, avg=92.99, stdev=58.00, samples=134 iops : min= 4, max= 82, avg=22.87, stdev=14.59, samples=134 lat (msec) : 4=0.49%, 10=24.48%, 20=32.00%, 50=37.47%, 100=5.27% lat (msec) : 250=0.26%, 2000=0.03% cpu : usr=0.09%, sys=15.07%, ctx=6920, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182054: Sat Jul 4 02:12:34 2026 read: IOPS=21, BW=86.7KiB/s (88.8kB/s)(5940KiB/68505msec) clat (msec): min=2, max=1055, avg=20.59, stdev=30.61 lat (msec): min=2, max=1055, avg=20.59, stdev=30.61 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 41], 95.00th=[ 49], | 99.00th=[ 70], 99.50th=[ 80], 99.90th=[ 124], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 352, per=24.98%, avg=87.19, stdev=60.33, samples=135 iops : min= 1, max= 88, avg=21.42, stdev=15.15, samples=135 write: IOPS=23, BW=92.7KiB/s (94.9kB/s)(6348KiB/68505msec); 0 zone resets clat (msec): min=4, max=115, avg=23.84, stdev=15.58 lat (msec): min=4, max=115, avg=23.85, stdev=15.58 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 45], 95.00th=[ 53], | 99.00th=[ 74], 99.50th=[ 101], 99.90th=[ 110], 99.95th=[ 116], | 99.99th=[ 116] bw ( KiB/s): min= 31, max= 304, per=25.57%, avg=93.59, stdev=55.85, samples=134 iops : min= 7, max= 76, avg=23.02, stdev=14.06, samples=134 lat (msec) : 4=0.36%, 10=25.00%, 20=30.11%, 50=38.96%, 100=5.24% lat (msec) : 250=0.29%, 2000=0.03% cpu : usr=0.09%, sys=14.96%, ctx=6884, 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=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=182055: Sat Jul 4 02:12:34 2026 read: IOPS=22, BW=88.0KiB/s (90.1kB/s)(6028KiB/68488msec) clat (msec): min=2, max=113, avg=19.57, stdev=14.80 lat (msec): min=2, max=113, avg=19.57, stdev=14.80 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 41], 95.00th=[ 51], | 99.00th=[ 68], 99.50th=[ 75], 99.90th=[ 111], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 23, max= 296, per=25.53%, avg=89.10, stdev=59.43, samples=134 iops : min= 5, max= 74, avg=21.90, stdev=14.94, samples=134 write: IOPS=22, BW=91.4KiB/s (93.6kB/s)(6260KiB/68488msec); 0 zone resets clat (msec): min=4, max=1056, avg=24.85, stdev=30.44 lat (msec): min=4, max=1056, avg=24.85, stdev=30.44 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 46], 95.00th=[ 54], | 99.00th=[ 73], 99.50th=[ 84], 99.90th=[ 140], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 320, per=25.06%, avg=91.70, stdev=56.92, samples=135 iops : min= 1, max= 80, avg=22.55, stdev=14.32, samples=135 lat (msec) : 4=0.36%, 10=25.39%, 20=30.99%, 50=37.50%, 100=5.50% lat (msec) : 250=0.23%, 2000=0.03% cpu : usr=0.09%, sys=14.98%, ctx=6905, 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=182056: Sat Jul 4 02:12:34 2026 read: IOPS=22, BW=88.2KiB/s (90.3kB/s)(6052KiB/68618msec) clat (usec): min=2313, max=92624, avg=19976.68, stdev=14998.80 lat (usec): min=2313, max=92625, avg=19977.56, stdev=14998.89 clat percentiles (usec): | 1.00th=[ 3228], 5.00th=[ 5276], 10.00th=[ 6390], 20.00th=[ 7832], | 30.00th=[ 9765], 40.00th=[12387], 50.00th=[15270], 60.00th=[18482], | 70.00th=[23200], 80.00th=[30802], 90.00th=[40633], 95.00th=[49546], | 99.00th=[70779], 99.50th=[81265], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 15, max= 304, per=25.31%, avg=88.34, stdev=55.21, samples=134 iops : min= 3, max= 76, avg=21.71, stdev=13.89, samples=134 write: IOPS=22, BW=90.9KiB/s (93.1kB/s)(6236KiB/68618msec); 0 zone resets clat (msec): min=3, max=1031, avg=24.55, stdev=30.07 lat (msec): min=3, max=1031, avg=24.55, stdev=30.07 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 37], 90.00th=[ 46], 95.00th=[ 55], | 99.00th=[ 73], 99.50th=[ 83], 99.90th=[ 134], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 344, per=24.76%, avg=90.64, stdev=57.75, samples=135 iops : min= 1, max= 86, avg=22.28, stdev=14.52, samples=135 lat (msec) : 4=0.94%, 10=24.48%, 20=31.74%, 50=36.72%, 100=5.92% lat (msec) : 250=0.16%, 2000=0.03% cpu : usr=0.09%, sys=14.87%, ctx=6791, 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=350KiB/s (358kB/s), 86.7KiB/s-88.2KiB/s (88.8kB/s-90.3kB/s), io=23.4MiB (24.6MB), run=68477-68618msec WRITE: bw=366KiB/s (375kB/s), 90.9KiB/s-92.7KiB/s (93.1kB/s-94.9kB/s), io=24.6MiB (25.7MB), run=68477-68618msec 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=182086: Sat Jul 4 02:12:53 2026 read: IOPS=27, BW=438KiB/s (449kB/s)(5920KiB/13512msec) clat (usec): min=79, max=60237, avg=17938.00, stdev=8965.90 lat (usec): min=79, max=60238, avg=17938.60, stdev=8965.92 clat percentiles (usec): | 1.00th=[ 90], 5.00th=[ 137], 10.00th=[ 9765], 20.00th=[11863], | 30.00th=[13435], 40.00th=[15270], 50.00th=[16909], 60.00th=[18744], | 70.00th=[20841], 80.00th=[23462], 90.00th=[28181], 95.00th=[32900], | 99.00th=[47449], 99.50th=[51119], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 223, max= 606, per=25.05%, avg=436.81, stdev=95.79, samples=26 iops : min= 13, max= 37, avg=26.77, stdev= 6.03, samples=26 write: IOPS=29, BW=471KiB/s (483kB/s)(6368KiB/13512msec); 0 zone resets clat (usec): min=1545, max=62112, avg=17210.29, stdev=11026.87 lat (usec): min=1546, max=62112, avg=17211.32, stdev=11026.80 clat percentiles (usec): | 1.00th=[ 2474], 5.00th=[ 4293], 10.00th=[ 4752], 20.00th=[ 6652], | 30.00th=[ 9372], 40.00th=[12780], 50.00th=[15533], 60.00th=[17957], | 70.00th=[21890], 80.00th=[25822], 90.00th=[33162], 95.00th=[39584], | 99.00th=[49021], 99.50th=[54264], 99.90th=[62129], 99.95th=[62129], | 99.99th=[62129] bw ( KiB/s): min= 285, max= 702, per=25.91%, avg=475.12, stdev=114.77, samples=26 iops : min= 17, max= 43, avg=29.15, stdev= 7.14, samples=26 lat (usec) : 100=0.78%, 250=1.82%, 500=0.13% lat (msec) : 2=0.39%, 4=1.43%, 10=17.97%, 20=42.97%, 50=33.85% lat (msec) : 100=0.65% cpu : usr=0.07%, sys=27.39%, ctx=3031, 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=182087: Sat Jul 4 02:12:53 2026 read: IOPS=27, BW=440KiB/s (451kB/s)(5744KiB/13045msec) clat (usec): min=56, max=64272, avg=18176.54, stdev=8913.48 lat (usec): min=57, max=64273, avg=18177.14, stdev=8913.51 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 8160], 10.00th=[ 9896], 20.00th=[11731], | 30.00th=[13435], 40.00th=[15008], 50.00th=[16909], 60.00th=[18744], | 70.00th=[20579], 80.00th=[23725], 90.00th=[28967], 95.00th=[33817], | 99.00th=[52167], 99.50th=[58459], 99.90th=[64226], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 207, max= 576, per=25.15%, avg=438.68, stdev=101.22, samples=25 iops : min= 12, max= 36, avg=26.88, stdev= 6.55, samples=25 write: IOPS=31, BW=502KiB/s (514kB/s)(6544KiB/13045msec); 0 zone resets clat (usec): min=1518, max=57154, avg=15694.80, stdev=10486.18 lat (usec): min=1518, max=57156, avg=15697.21, stdev=10485.02 clat percentiles (usec): | 1.00th=[ 2835], 5.00th=[ 4293], 10.00th=[ 4752], 20.00th=[ 6128], | 30.00th=[ 8979], 40.00th=[11076], 50.00th=[13042], 60.00th=[15139], | 70.00th=[19268], 80.00th=[23987], 90.00th=[31065], 95.00th=[38011], | 99.00th=[45876], 99.50th=[48497], 99.90th=[57410], 99.95th=[57410], | 99.99th=[57410] bw ( KiB/s): min= 256, max= 798, per=27.04%, avg=495.84, stdev=113.50, samples=25 iops : min= 16, max= 49, avg=30.48, stdev= 6.94, samples=25 lat (usec) : 100=0.26%, 250=0.91%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.13%, 4=1.43%, 10=19.92%, 20=47.01%, 50=29.17% lat (msec) : 100=0.91% cpu : usr=0.11%, sys=28.38%, ctx=2998, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182088: Sat Jul 4 02:12:53 2026 read: IOPS=28, BW=456KiB/s (466kB/s)(6256KiB/13733msec) clat (usec): min=64, max=59907, avg=18033.91, stdev=8526.46 lat (usec): min=65, max=59908, avg=18044.11, stdev=8529.31 clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 186], 10.00th=[ 8848], 20.00th=[11863], | 30.00th=[13829], 40.00th=[15926], 50.00th=[17695], 60.00th=[19530], | 70.00th=[21627], 80.00th=[25035], 90.00th=[27657], 95.00th=[31589], | 99.00th=[40109], 99.50th=[56361], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 191, max= 766, per=26.16%, avg=456.30, stdev=130.44, samples=27 iops : min= 11, max= 47, avg=27.96, stdev= 8.15, samples=27 write: IOPS=27, BW=439KiB/s (450kB/s)(6032KiB/13733msec); 0 zone resets clat (usec): min=1916, max=72921, avg=17533.06, stdev=11195.96 lat (usec): min=1917, max=72922, avg=17534.05, stdev=11196.06 clat percentiles (usec): | 1.00th=[ 2769], 5.00th=[ 4178], 10.00th=[ 4752], 20.00th=[ 7308], | 30.00th=[10421], 40.00th=[12125], 50.00th=[14877], 60.00th=[18220], | 70.00th=[22676], 80.00th=[26870], 90.00th=[32113], 95.00th=[40109], | 99.00th=[49546], 99.50th=[57410], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 255, max= 766, per=23.59%, avg=432.63, stdev=113.59, samples=27 iops : min= 15, max= 47, avg=26.48, stdev= 7.08, samples=27 lat (usec) : 100=0.91%, 250=1.69%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.13%, 4=1.82%, 10=16.93%, 20=41.02%, 50=36.72% lat (msec) : 100=0.52% cpu : usr=0.06%, sys=27.05%, ctx=3086, 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=182089: Sat Jul 4 02:12:53 2026 read: IOPS=30, BW=484KiB/s (495kB/s)(6032KiB/12474msec) clat (usec): min=49, max=55981, avg=17231.00, stdev=8609.22 lat (usec): min=50, max=55982, avg=17231.52, stdev=8609.22 clat percentiles (usec): | 1.00th=[ 92], 5.00th=[ 123], 10.00th=[ 8848], 20.00th=[10945], | 30.00th=[13566], 40.00th=[15008], 50.00th=[16319], 60.00th=[18482], | 70.00th=[20317], 80.00th=[23200], 90.00th=[27132], 95.00th=[31589], | 99.00th=[44827], 99.50th=[49546], 99.90th=[55837], 99.95th=[55837], | 99.99th=[55837] bw ( KiB/s): min= 286, max= 640, per=27.61%, avg=481.54, stdev=91.34, samples=24 iops : min= 17, max= 40, avg=29.58, stdev= 5.76, samples=24 write: IOPS=31, BW=502KiB/s (514kB/s)(6256KiB/12474msec); 0 zone resets clat (usec): min=1071, max=56770, avg=15085.78, stdev=9966.69 lat (usec): min=1072, max=56771, avg=15086.72, stdev=9966.70 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 3851], 10.00th=[ 4686], 20.00th=[ 5997], | 30.00th=[ 8455], 40.00th=[10421], 50.00th=[12911], 60.00th=[15926], | 70.00th=[19006], 80.00th=[22414], 90.00th=[28705], 95.00th=[34866], | 99.00th=[51119], 99.50th=[53740], 99.90th=[56886], 99.95th=[56886], | 99.99th=[56886] bw ( KiB/s): min= 312, max= 768, per=27.48%, avg=503.96, stdev=117.17, samples=24 iops : min= 19, max= 48, avg=31.00, stdev= 7.40, samples=24 lat (usec) : 50=0.13%, 100=1.04%, 250=1.95%, 500=0.13% lat (msec) : 2=1.43%, 4=1.69%, 10=19.66%, 20=44.40%, 50=28.91% lat (msec) : 100=0.65% cpu : usr=0.08%, sys=28.41%, ctx=2970, 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=1744KiB/s (1786kB/s), 438KiB/s-484KiB/s (449kB/s-495kB/s), io=23.4MiB (24.5MB), run=12474-13733msec WRITE: bw=1835KiB/s (1879kB/s), 439KiB/s-502KiB/s (450kB/s-514kB/s), io=24.6MiB (25.8MB), run=12474-13733msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182081: Sat Jul 4 02:12:54 2026 read: IOPS=24, BW=394KiB/s (404kB/s)(5920KiB/15008msec) clat (usec): min=3349, max=71790, avg=16841.66, stdev=12038.18 lat (usec): min=3350, max=71791, avg=16842.18, stdev=12038.21 clat percentiles (usec): | 1.00th=[ 3785], 5.00th=[ 5014], 10.00th=[ 5604], 20.00th=[ 6980], | 30.00th=[ 9110], 40.00th=[11338], 50.00th=[12911], 60.00th=[15533], | 70.00th=[19006], 80.00th=[25035], 90.00th=[33817], 95.00th=[40109], | 99.00th=[59507], 99.50th=[66847], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 159, max= 1248, per=23.73%, avg=376.34, stdev=201.85, samples=29 iops : min= 9, max= 78, avg=23.14, stdev=12.73, samples=29 write: IOPS=26, BW=424KiB/s (434kB/s)(6368KiB/15008msec); 0 zone resets clat (usec): min=5022, max=76445, avg=22000.21, stdev=13896.07 lat (usec): min=5022, max=76447, avg=22001.56, stdev=13895.99 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 6456], 10.00th=[ 7242], 20.00th=[ 9372], | 30.00th=[11600], 40.00th=[14746], 50.00th=[18482], 60.00th=[22938], | 70.00th=[27919], 80.00th=[34341], 90.00th=[42730], 95.00th=[49021], | 99.00th=[61080], 99.50th=[67634], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 191, max= 1152, per=24.35%, avg=406.21, stdev=203.73, samples=29 iops : min= 11, max= 72, avg=25.00, stdev=12.83, samples=29 lat (msec) : 4=0.65%, 10=26.95%, 20=35.29%, 50=33.59%, 100=3.52% cpu : usr=0.07%, sys=13.99%, ctx=1755, 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=182082: Sat Jul 4 02:12:54 2026 read: IOPS=23, BW=382KiB/s (392kB/s)(5744KiB/15018msec) clat (usec): min=3413, max=66964, avg=17093.35, stdev=11450.19 lat (usec): min=3413, max=66965, avg=17093.82, stdev=11450.20 clat percentiles (usec): | 1.00th=[ 4080], 5.00th=[ 5080], 10.00th=[ 6128], 20.00th=[ 8094], | 30.00th=[10421], 40.00th=[11600], 50.00th=[13304], 60.00th=[15926], | 70.00th=[19006], 80.00th=[25035], 90.00th=[34341], 95.00th=[41157], | 99.00th=[54789], 99.50th=[61080], 99.90th=[66847], 99.95th=[66847], | 99.99th=[66847] bw ( KiB/s): min= 191, max= 1024, per=23.16%, avg=367.31, stdev=157.63, samples=29 iops : min= 11, max= 64, avg=22.55, stdev= 9.92, samples=29 write: IOPS=27, BW=436KiB/s (446kB/s)(6544KiB/15018msec); 0 zone resets clat (usec): min=5328, max=79308, avg=21615.21, stdev=14128.64 lat (usec): min=5329, max=79309, avg=21616.32, stdev=14128.70 clat percentiles (usec): | 1.00th=[ 5473], 5.00th=[ 6652], 10.00th=[ 7308], 20.00th=[ 9372], | 30.00th=[11469], 40.00th=[13829], 50.00th=[18220], 60.00th=[21627], | 70.00th=[26084], 80.00th=[32637], 90.00th=[43254], 95.00th=[49021], | 99.00th=[63701], 99.50th=[73925], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 223, max= 1216, per=24.99%, avg=416.79, stdev=230.86, samples=29 iops : min= 13, max= 76, avg=25.66, stdev=14.57, samples=29 lat (msec) : 4=0.39%, 10=25.78%, 20=36.98%, 50=33.33%, 100=3.52% cpu : usr=0.13%, sys=14.04%, ctx=1717, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182083: Sat Jul 4 02:12:54 2026 read: IOPS=25, BW=414KiB/s (424kB/s)(6256KiB/15100msec) clat (usec): min=2734, max=56693, avg=17847.42, stdev=12969.12 lat (usec): min=2735, max=56694, avg=17848.03, stdev=12969.15 clat percentiles (usec): | 1.00th=[ 2900], 5.00th=[ 4817], 10.00th=[ 5276], 20.00th=[ 6652], | 30.00th=[ 8848], 40.00th=[10683], 50.00th=[13304], 60.00th=[16581], | 70.00th=[21103], 80.00th=[29492], 90.00th=[38536], 95.00th=[45876], | 99.00th=[53216], 99.50th=[54264], 99.90th=[56886], 99.95th=[56886], | 99.99th=[56886] bw ( KiB/s): min= 191, max= 1408, per=24.44%, avg=387.66, stdev=232.56, samples=29 iops : min= 11, max= 88, avg=23.83, stdev=14.66, samples=29 write: IOPS=24, BW=399KiB/s (409kB/s)(6032KiB/15100msec); 0 zone resets clat (usec): min=3965, max=71429, avg=21391.51, stdev=13825.38 lat (usec): min=3965, max=71430, avg=21392.85, stdev=13825.46 clat percentiles (usec): | 1.00th=[ 4424], 5.00th=[ 5669], 10.00th=[ 6718], 20.00th=[ 8356], | 30.00th=[11600], 40.00th=[14615], 50.00th=[17433], 60.00th=[22676], | 70.00th=[26870], 80.00th=[33162], 90.00th=[42730], 95.00th=[47449], | 99.00th=[62129], 99.50th=[63701], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 160, max= 1088, per=22.12%, avg=368.90, stdev=190.33, samples=29 iops : min= 10, max= 68, avg=22.66, stdev=11.98, samples=29 lat (msec) : 4=1.56%, 10=29.17%, 20=30.73%, 50=35.16%, 100=3.39% cpu : usr=0.06%, sys=13.68%, ctx=1635, 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=182084: Sat Jul 4 02:12:54 2026 read: IOPS=25, BW=404KiB/s (414kB/s)(6032KiB/14933msec) clat (usec): min=3546, max=66431, avg=17254.23, stdev=11825.38 lat (usec): min=3546, max=66432, avg=17254.76, stdev=11825.41 clat percentiles (usec): | 1.00th=[ 3785], 5.00th=[ 4883], 10.00th=[ 5473], 20.00th=[ 6915], | 30.00th=[ 9765], 40.00th=[11469], 50.00th=[13304], 60.00th=[16319], | 70.00th=[20579], 80.00th=[26346], 90.00th=[35390], 95.00th=[41681], | 99.00th=[54264], 99.50th=[58459], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 96, max= 1152, per=24.58%, avg=389.90, stdev=225.99, samples=29 iops : min= 6, max= 72, avg=23.97, stdev=14.20, samples=29 write: IOPS=26, BW=419KiB/s (429kB/s)(6256KiB/14933msec); 0 zone resets clat (usec): min=5151, max=64248, avg=21474.82, stdev=12524.62 lat (usec): min=5152, max=64249, avg=21475.99, stdev=12524.71 clat percentiles (usec): | 1.00th=[ 5932], 5.00th=[ 6652], 10.00th=[ 7504], 20.00th=[10290], | 30.00th=[12911], 40.00th=[15795], 50.00th=[18744], 60.00th=[22152], | 70.00th=[25560], 80.00th=[31327], 90.00th=[40109], 95.00th=[45876], | 99.00th=[58983], 99.50th=[62653], 99.90th=[64226], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 159, max= 1184, per=24.34%, avg=406.03, stdev=187.55, samples=29 iops : min= 9, max= 74, avg=25.00, stdev=11.87, samples=29 lat (msec) : 4=0.65%, 10=24.87%, 20=35.68%, 50=36.72%, 100=2.08% cpu : usr=0.05%, sys=14.37%, ctx=1699, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1586KiB/s (1624kB/s), 382KiB/s-414KiB/s (392kB/s-424kB/s), io=23.4MiB (24.5MB), run=14933-15100msec WRITE: bw=1669KiB/s (1709kB/s), 399KiB/s-436KiB/s (409kB/s-446kB/s), io=24.6MiB (25.8MB), run=14933-15100msec 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=182101: Sat Jul 4 02:13:04 2026 read: IOPS=2, BW=2131KiB/s (2183kB/s)(7168KiB/3363msec) clat (msec): min=98, max=614, avg=290.18, stdev=224.51 lat (msec): min=98, max=614, avg=290.18, stdev=224.51 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 101], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 201], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 609], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1976, max= 4096, per=53.98%, avg=2812.75, stdev=1005.49, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 write: IOPS=1, BW=1522KiB/s (1559kB/s)(5120KiB/3363msec); 0 zone resets clat (msec): min=130, max=394, avg=253.07, stdev=99.00 lat (msec): min=130, max=394, avg=253.15, stdev=99.00 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 2000, max= 4096, per=45.28%, avg=3303.00, stdev=1137.27, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.03%, sys=15.70%, ctx=229, 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=182102: Sat Jul 4 02:13:04 2026 read: IOPS=0, BW=526KiB/s (538kB/s)(2048KiB/3895msec) clat (msec): min=148, max=624, avg=386.31, stdev=336.30 lat (msec): min=148, max=624, avg=386.31, stdev=336.31 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 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= 1976, max= 2048, per=38.61%, avg=2012.00, stdev=50.91, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2629KiB/s (2692kB/s)(10.0MiB/3895msec); 0 zone resets clat (msec): min=82, max=659, avg=309.03, stdev=215.46 lat (msec): min=82, max=659, avg=309.11, stdev=215.45 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 85], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 228], 60.00th=[ 275], | 70.00th=[ 397], 80.00th=[ 498], 90.00th=[ 600], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1906, max= 5896, per=43.39%, avg=3165.20, stdev=1760.83, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.67, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.03%, sys=26.04%, ctx=308, 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=182103: Sat Jul 4 02:13:04 2026 read: IOPS=1, BW=1695KiB/s (1736kB/s)(6144KiB/3625msec) clat (msec): min=89, max=528, avg=274.22, stdev=173.22 lat (msec): min=89, max=528, avg=274.22, stdev=173.22 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 355], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1906, max= 2048, per=38.39%, avg=2000.50, stdev=66.94, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 write: IOPS=1, BW=1695KiB/s (1736kB/s)(6144KiB/3625msec); 0 zone resets clat (msec): min=115, max=569, avg=304.69, stdev=169.00 lat (msec): min=115, max=569, avg=304.76, stdev=168.99 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 288], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2000, max= 3953, per=36.56%, avg=2667.00, stdev=1113.97, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=14.98%, ctx=116, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182104: Sat Jul 4 02:13:04 2026 read: IOPS=1, BW=1303KiB/s (1334kB/s)(5120KiB/3930msec) clat (msec): min=46, max=490, avg=289.97, stdev=186.59 lat (msec): min=46, max=490, avg=289.97, stdev=186.59 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 47], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1906, max= 4096, per=50.96%, avg=2655.67, stdev=1247.71, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1824KiB/s (1868kB/s)(7168KiB/3930msec); 0 zone resets clat (msec): min=90, max=711, avg=345.73, stdev=257.95 lat (msec): min=91, max=711, avg=345.81, stdev=257.94 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 109], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 243], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 693], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1965, max= 3953, per=34.15%, avg=2491.50, stdev=974.93, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=24.13%, ctx=318, 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=5211KiB/s (5336kB/s), 526KiB/s-2131KiB/s (538kB/s-2183kB/s), io=20.0MiB (20.0MB), run=3363-3930msec WRITE: bw=7296KiB/s (7471kB/s), 1522KiB/s-2629KiB/s (1559kB/s-2692kB/s), io=28.0MiB (29.4MB), run=3363-3930msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182096: Sat Jul 4 02:13:04 2026 read: IOPS=3, BW=3595KiB/s (3681kB/s)(7168KiB/1994msec) clat (usec): min=634, max=168039, avg=121603.97, stdev=62384.80 lat (usec): min=635, max=168040, avg=121605.34, stdev=62384.71 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[ 83362], | 30.00th=[112722], 40.00th=[112722], 50.00th=[160433], 60.00th=[162530], | 70.00th=[162530], 80.00th=[162530], 90.00th=[168821], 95.00th=[168821], | 99.00th=[168821], 99.50th=[168821], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 4007, max= 5287, per=88.14%, avg=4647.00, stdev=905.10, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2568KiB/s (2629kB/s)(5120KiB/1994msec); 0 zone resets clat (msec): min=142, max=333, avg=223.80, stdev=72.03 lat (msec): min=142, max=334, avg=223.86, stdev=72.04 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 236], 80.00th=[ 236], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2003, max= 4079, per=41.19%, avg=3041.00, stdev=1467.95, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=75.00%, 500=8.33% cpu : usr=0.00%, sys=65.13%, ctx=828, 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=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=182097: Sat Jul 4 02:13:04 2026 read: IOPS=0, BW=527KiB/s (540kB/s)(2048KiB/3884msec) clat (usec): min=621, max=112984, avg=56803.14, stdev=79452.38 lat (usec): min=623, max=112986, avg=56804.64, stdev=79452.54 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[ 619], 10.00th=[ 619], 20.00th=[ 619], | 30.00th=[ 619], 40.00th=[ 619], 50.00th=[ 619], 60.00th=[112722], | 70.00th=[112722], 80.00th=[112722], 90.00th=[112722], 95.00th=[112722], | 99.00th=[112722], 99.50th=[112722], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 1747, max= 1984, per=35.39%, avg=1865.50, stdev=167.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2636KiB/s (2700kB/s)(10.0MiB/3884msec); 0 zone resets clat (msec): min=243, max=506, avg=376.12, stdev=96.22 lat (msec): min=243, max=506, avg=376.18, stdev=96.23 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 247], | 30.00th=[ 284], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 422], | 70.00th=[ 439], 80.00th=[ 447], 90.00th=[ 481], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1984, max= 4096, per=40.79%, avg=3011.17, stdev=1083.89, samples=6 iops : min= 1, max= 4, avg= 2.33, stdev= 1.21, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=46.00%, ctx=507, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182098: Sat Jul 4 02:13:04 2026 read: IOPS=1, BW=2027KiB/s (2076kB/s)(6144KiB/3031msec) clat (usec): min=467, max=335938, avg=184100.94, stdev=112029.29 lat (usec): min=468, max=335939, avg=184101.93, stdev=112029.24 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[158335], | 30.00th=[158335], 40.00th=[162530], 50.00th=[162530], 60.00th=[191890], | 70.00th=[252707], 80.00th=[252707], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1984, max= 4096, per=48.00%, avg=2530.50, stdev=1043.92, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=2027KiB/s (2076kB/s)(6144KiB/3031msec); 0 zone resets clat (msec): min=167, max=443, avg=315.66, stdev=102.42 lat (msec): min=167, max=443, avg=315.73, stdev=102.42 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 317], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1984, max= 3531, per=32.37%, avg=2389.25, stdev=761.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=49.60%, ctx=355, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182099: Sat Jul 4 02:13:04 2026 read: IOPS=1, BW=1935KiB/s (1981kB/s)(5120KiB/2646msec) clat (usec): min=343, max=292643, avg=113612.06, stdev=122209.88 lat (usec): min=343, max=292644, avg=113613.04, stdev=122209.96 clat percentiles (usec): | 1.00th=[ 343], 5.00th=[ 343], 10.00th=[ 343], 20.00th=[ 343], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[114820], 60.00th=[114820], | 70.00th=[158335], 80.00th=[158335], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2709KiB/s (2774kB/s)(7168KiB/2646msec); 0 zone resets clat (msec): min=174, max=507, avg=291.61, stdev=121.79 lat (msec): min=175, max=507, avg=291.66, stdev=121.81 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 184], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 313], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 363], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1771, max= 4007, per=37.48%, avg=2766.60, stdev=1120.15, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.04%, sys=46.09%, ctx=332, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5273KiB/s (5399kB/s), 527KiB/s-3595KiB/s (540kB/s-3681kB/s), io=20.0MiB (20.0MB), run=1994-3884msec WRITE: bw=7382KiB/s (7559kB/s), 2027KiB/s-2709KiB/s (2076kB/s-2774kB/s), io=28.0MiB (29.4MB), run=1994-3884msec 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=182111: Sat Jul 4 02:13:13 2026 read: IOPS=2, BW=9009KiB/s (9225kB/s)(12.0MiB/1364msec) clat (msec): min=334, max=517, avg=447.82, stdev=99.34 lat (msec): min=334, max=517, avg=447.82, stdev=99.34 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 5927, max= 8015, per=90.17%, avg=6971.00, stdev=1476.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=51.21%, ctx=2892, 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=182112: Sat Jul 4 02:13:13 2026 read: IOPS=0, BW=1933KiB/s (1979kB/s)(4096KiB/2119msec) clat (nsec): min=401571k, max=401571k, avg=401571144.00, stdev= 0.00 lat (nsec): min=401573k, max=401573k, avg=401572612.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3866KiB/s (3959kB/s)(8192KiB/2119msec); 0 zone resets clat (msec): min=592, max=1109, avg=851.37, stdev=365.56 lat (msec): min=593, max=1110, avg=851.65, stdev=365.56 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 1116], | 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= 8192, max= 8192, per=52.98%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=22.52%, ctx=1100, 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=182113: Sat Jul 4 02:13:13 2026 write: IOPS=1, BW=7136KiB/s (7307kB/s)(12.0MiB/1722msec); 0 zone resets clat (msec): min=341, max=919, avg=566.90, stdev=309.51 lat (msec): min=341, max=920, avg=567.21, stdev=309.52 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7831, max= 8192, per=51.81%, avg=8011.50, stdev=255.27, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.06%, sys=14.93%, 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=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=182114: Sat Jul 4 02:13:13 2026 write: IOPS=2, BW=8445KiB/s (8648kB/s)(12.0MiB/1455msec); 0 zone resets clat (msec): min=226, max=685, avg=480.58, stdev=233.68 lat (msec): min=226, max=685, avg=480.81, stdev=233.63 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 5720, max= 5720, per=36.99%, avg=5720.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=20.29%, ctx=60, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7732KiB/s (7918kB/s), 1933KiB/s-9009KiB/s (1979kB/s-9225kB/s), io=16.0MiB (16.8MB), run=1364-2119msec WRITE: bw=15.1MiB/s (15.8MB/s), 3866KiB/s-8445KiB/s (3959kB/s-8648kB/s), io=32.0MiB (33.6MB), run=1455-2119msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182115: Sat Jul 4 02:13:13 2026 read: IOPS=1, BW=5598KiB/s (5733kB/s)(12.0MiB/2195msec) clat (msec): min=285, max=1030, avg=725.66, stdev=390.68 lat (msec): min=285, max=1030, avg=725.66, stdev=390.68 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1028], 80.00th=[ 1028], 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.72%, ctx=89, 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=182116: Sat Jul 4 02:13:13 2026 read: IOPS=0, BW=1853KiB/s (1898kB/s)(4096KiB/2210msec) clat (nsec): min=1218.4M, max=1218.4M, avg=1218445665.00, stdev= 0.00 lat (nsec): min=1218.4M, max=1218.4M, avg=1218447283.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3707KiB/s (3796kB/s)(8192KiB/2210msec); 0 zone resets clat (msec): min=386, max=583, avg=484.97, stdev=139.13 lat (msec): min=386, max=583, avg=485.24, stdev=139.13 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 8175, max= 8175, per=55.14%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=12.86%, ctx=60, 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=182117: Sat Jul 4 02:13:13 2026 write: IOPS=1, BW=6021KiB/s (6165kB/s)(12.0MiB/2041msec); 0 zone resets clat (msec): min=498, max=765, avg=673.31, stdev=151.70 lat (msec): min=498, max=765, avg=673.61, stdev=151.69 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8175, max= 8192, per=55.19%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.05%, sys=14.36%, ctx=54, 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=182118: Sat Jul 4 02:13:13 2026 write: IOPS=1, BW=6502KiB/s (6658kB/s)(12.0MiB/1890msec); 0 zone resets clat (msec): min=190, max=971, avg=624.88, stdev=397.78 lat (msec): min=190, max=971, avg=625.19, stdev=397.79 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8175, max= 8192, per=55.19%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.11%, sys=14.51%, ctx=73, 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=7414KiB/s (7592kB/s), 1853KiB/s-5598KiB/s (1898kB/s-5733kB/s), io=16.0MiB (16.8MB), run=2195-2210msec WRITE: bw=14.5MiB/s (15.2MB/s), 3707KiB/s-6502KiB/s (3796kB/s-6658kB/s), io=32.0MiB (33.6MB), run=1890-2210msec