== sanity test 398b: DIO and buffer IO race ============== 09:48:25 (1790776105) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.48411 s, 9.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144727: Wed Sep 30 09:50:33 2026 read: IOPS=13, BW=54.8KiB/s (56.1kB/s)(5992KiB/109277msec) clat (usec): min=32, max=768282, avg=34401.84, stdev=31513.28 lat (usec): min=32, max=768284, avg=34403.00, stdev=31513.32 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 15401], | 30.00th=[ 20055], 40.00th=[ 24773], 50.00th=[ 28705], 60.00th=[ 34866], | 70.00th=[ 42730], 80.00th=[ 52691], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[104334], 99.50th=[121111], 99.90th=[206570], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 125, per=25.25%, avg=54.80, stdev=21.93, samples=213 iops : min= 1, max= 31, avg=13.06, stdev= 5.50, samples=213 write: IOPS=14, BW=57.6KiB/s (58.0kB/s)(6296KiB/109277msec); 0 zone resets clat (usec): min=711, max=314699, avg=36417.44, stdev=37443.45 lat (usec): min=711, max=314700, avg=36419.44, stdev=37443.27 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1319], 20.00th=[ 3261], | 30.00th=[ 6718], 40.00th=[ 17957], 50.00th=[ 27919], 60.00th=[ 37487], | 70.00th=[ 48497], 80.00th=[ 63177], 90.00th=[ 84411], 95.00th=[108528], | 99.00th=[156238], 99.50th=[191890], 99.90th=[265290], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 15, max= 143, per=25.29%, avg=57.67, stdev=21.03, samples=213 iops : min= 3, max= 35, avg=13.78, stdev= 5.28, samples=213 lat (usec) : 50=0.81%, 100=5.18%, 250=0.26%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.39% lat (msec) : 2=7.16%, 4=4.36%, 10=5.92%, 20=11.69%, 50=38.28% lat (msec) : 100=21.84%, 250=3.81%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.49%, ctx=6311, 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=144729: Wed Sep 30 09:50:33 2026 read: IOPS=13, BW=54.8KiB/s (56.2kB/s)(5940KiB/108324msec) clat (usec): min=32, max=329227, avg=35042.47, stdev=27693.17 lat (usec): min=32, max=329229, avg=35044.16, stdev=27693.73 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 69], 20.00th=[ 15401], | 30.00th=[ 20055], 40.00th=[ 24249], 50.00th=[ 30016], 60.00th=[ 35390], | 70.00th=[ 43779], 80.00th=[ 53740], 90.00th=[ 70779], 95.00th=[ 83362], | 99.00th=[113771], 99.50th=[147850], 99.90th=[235930], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 5, max= 117, per=25.18%, avg=54.63, stdev=22.48, samples=212 iops : min= 1, max= 29, avg=13.01, stdev= 5.66, samples=212 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(6348KiB/108324msec); 0 zone resets clat (usec): min=803, max=757329, avg=35222.95, stdev=41665.91 lat (usec): min=803, max=757330, avg=35225.12, stdev=41666.08 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1336], 20.00th=[ 3195], | 30.00th=[ 6849], 40.00th=[ 15139], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[160433], 99.50th=[231736], 99.90th=[350225], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 7, max= 134, per=25.60%, avg=58.36, stdev=22.79, samples=212 iops : min= 1, max= 33, avg=13.96, stdev= 5.72, samples=212 lat (usec) : 50=0.85%, 100=4.79%, 250=0.26%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.26% lat (msec) : 2=7.71%, 4=4.20%, 10=6.18%, 20=12.66%, 50=38.15% lat (msec) : 100=21.06%, 250=3.48%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=5.37%, ctx=6218, 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=144732: Wed Sep 30 09:50:33 2026 read: IOPS=13, BW=54.7KiB/s (56.0kB/s)(6028KiB/110225msec) clat (usec): min=26, max=454936, avg=33763.94, stdev=27615.82 lat (usec): min=26, max=454937, avg=33765.79, stdev=27615.82 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 14615], | 30.00th=[ 19530], 40.00th=[ 23987], 50.00th=[ 28967], 60.00th=[ 34341], | 70.00th=[ 41681], 80.00th=[ 51643], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[107480], 99.50th=[126354], 99.90th=[227541], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 7, max= 134, per=25.25%, avg=54.79, stdev=25.08, samples=214 iops : min= 1, max= 33, avg=13.06, stdev= 6.30, samples=214 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(6260KiB/110225msec); 0 zone resets clat (usec): min=941, max=736814, avg=37654.20, stdev=43918.72 lat (usec): min=942, max=736816, avg=37662.66, stdev=43923.98 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1188], 10.00th=[ 1418], 20.00th=[ 3425], | 30.00th=[ 7439], 40.00th=[ 17957], 50.00th=[ 28443], 60.00th=[ 38011], | 70.00th=[ 49546], 80.00th=[ 63177], 90.00th=[ 85459], 95.00th=[107480], | 99.00th=[175113], 99.50th=[196084], 99.90th=[624952], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 150, per=24.85%, avg=56.66, stdev=22.14, samples=215 iops : min= 1, max= 37, avg=13.53, stdev= 5.60, samples=215 lat (usec) : 50=1.11%, 100=4.75%, 250=0.36%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=6.77%, 4=4.36%, 10=6.51%, 20=12.57%, 50=37.60% lat (msec) : 100=21.61%, 250=3.94%, 500=0.07%, 750=0.07% cpu : usr=0.06%, sys=5.33%, ctx=6332, 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=144734: Wed Sep 30 09:50:33 2026 read: IOPS=13, BW=55.1KiB/s (56.4kB/s)(6052KiB/109861msec) clat (usec): min=21, max=460620, avg=34306.34, stdev=28752.42 lat (usec): min=21, max=460621, avg=34307.63, stdev=28752.40 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 15139], | 30.00th=[ 19792], 40.00th=[ 24511], 50.00th=[ 28967], 60.00th=[ 35390], | 70.00th=[ 43254], 80.00th=[ 53216], 90.00th=[ 65799], 95.00th=[ 79168], | 99.00th=[111674], 99.50th=[125305], 99.90th=[358613], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 7, max= 190, per=25.56%, avg=55.46, stdev=24.75, samples=214 iops : min= 1, max= 47, avg=13.21, stdev= 6.21, samples=214 write: IOPS=14, BW=56.8KiB/s (58.1kB/s)(6236KiB/109861msec); 0 zone resets clat (usec): min=606, max=771626, avg=36890.26, stdev=43048.10 lat (usec): min=606, max=771629, avg=36892.62, stdev=43048.80 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1287], 20.00th=[ 2999], | 30.00th=[ 6325], 40.00th=[ 15270], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[164627], 99.50th=[210764], 99.90th=[329253], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 174, per=24.95%, avg=56.88, stdev=23.43, samples=215 iops : min= 1, max= 43, avg=13.58, stdev= 5.90, samples=215 lat (usec) : 50=1.20%, 100=4.88%, 250=0.26%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=7.85%, 4=4.04%, 10=6.74%, 20=11.72%, 50=37.11% lat (msec) : 100=21.09%, 250=4.52%, 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=5.31%, ctx=6290, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=218KiB/s (223kB/s), 54.7KiB/s-55.1KiB/s (56.0kB/s-56.4kB/s), io=23.4MiB (24.6MB), run=108324-110225msec WRITE: bw=228KiB/s (234kB/s), 56.8KiB/s-58.6KiB/s (58.1kB/s-60.0kB/s), io=24.6MiB (25.7MB), run=108324-110225msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144728: Wed Sep 30 09:52:44 2026 read: IOPS=6, BW=24.9KiB/s (25.5kB/s)(5992KiB/240356msec) clat (msec): min=4, max=789, avg=31.52, stdev=39.43 lat (msec): min=4, max=789, avg=31.52, stdev=39.43 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=[ 31], 80.00th=[ 41], 90.00th=[ 68], 95.00th=[ 92], | 99.00th=[ 161], 99.50th=[ 211], 99.90th=[ 667], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 102, per=27.46%, avg=27.19, stdev=18.20, samples=428 iops : min= 1, max= 25, avg= 6.20, stdev= 4.58, samples=428 write: IOPS=6, BW=26.2KiB/s (26.8kB/s)(6296KiB/240356msec); 0 zone resets clat (msec): min=36, max=566, avg=122.47, stdev=54.34 lat (msec): min=36, max=566, avg=122.47, stdev=54.34 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 199], 95.00th=[ 224], | 99.00th=[ 279], 99.50th=[ 321], 99.90th=[ 443], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 64, per=24.96%, avg=25.96, stdev=11.24, samples=470 iops : min= 1, max= 16, avg= 5.89, stdev= 2.86, samples=470 lat (msec) : 10=5.86%, 20=17.84%, 50=18.88%, 100=25.23%, 250=30.70% lat (msec) : 500=1.40%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.17%, ctx=5174, 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=144730: Wed Sep 30 09:52:44 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(5940KiB/241462msec) clat (msec): min=5, max=599, avg=31.63, stdev=35.46 lat (msec): min=5, max=599, avg=31.63, stdev=35.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 67], 95.00th=[ 90], | 99.00th=[ 163], 99.50th=[ 194], 99.90th=[ 489], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 87, per=27.23%, avg=26.96, stdev=17.91, samples=427 iops : min= 1, max= 21, avg= 6.14, stdev= 4.51, samples=427 write: IOPS=6, BW=26.3KiB/s (26.9kB/s)(6348KiB/241462msec); 0 zone resets clat (msec): min=29, max=534, avg=122.27, stdev=55.02 lat (msec): min=29, max=534, avg=122.27, stdev=55.02 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 197], 95.00th=[ 228], | 99.00th=[ 296], 99.50th=[ 321], 99.90th=[ 498], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 72, per=24.82%, avg=25.81, stdev=11.64, samples=476 iops : min= 1, max= 18, avg= 5.85, stdev= 2.97, samples=476 lat (msec) : 10=4.82%, 20=18.78%, 50=18.95%, 100=24.74%, 250=31.32% lat (msec) : 500=1.33%, 750=0.07% cpu : usr=0.05%, sys=1.16%, ctx=5062, 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=144731: Wed Sep 30 09:52:44 2026 read: IOPS=6, BW=25.1KiB/s (25.7kB/s)(6028KiB/240117msec) clat (msec): min=4, max=672, avg=31.26, stdev=33.61 lat (msec): min=4, max=672, avg=31.26, stdev=33.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 67], 95.00th=[ 86], | 99.00th=[ 138], 99.50th=[ 157], 99.90th=[ 485], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 119, per=27.19%, avg=26.92, stdev=18.25, samples=434 iops : min= 1, max= 29, avg= 6.13, stdev= 4.61, samples=434 write: IOPS=6, BW=26.1KiB/s (26.7kB/s)(6260KiB/240117msec); 0 zone resets clat (msec): min=29, max=724, avg=123.10, stdev=55.93 lat (msec): min=29, max=724, avg=123.10, stdev=55.93 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 194], 95.00th=[ 226], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 384], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 63, per=24.67%, avg=25.66, stdev=11.12, samples=472 iops : min= 1, max= 15, avg= 5.81, stdev= 2.84, samples=472 lat (msec) : 10=4.82%, 20=17.90%, 50=19.17%, 100=26.17%, 250=30.31% lat (msec) : 500=1.56%, 750=0.07% cpu : usr=0.04%, sys=1.15%, ctx=4919, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144733: Wed Sep 30 09:52:44 2026 read: IOPS=6, BW=25.4KiB/s (25.0kB/s)(6052KiB/238623msec) clat (msec): min=5, max=289, avg=29.46, stdev=27.12 lat (msec): min=5, max=289, avg=29.46, stdev=27.12 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 42], 90.00th=[ 63], 95.00th=[ 84], | 99.00th=[ 136], 99.50th=[ 167], 99.90th=[ 230], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 126, per=28.18%, avg=27.90, stdev=18.50, samples=421 iops : min= 1, max= 31, avg= 6.38, stdev= 4.69, samples=421 write: IOPS=6, BW=26.1KiB/s (26.8kB/s)(6236KiB/238623msec); 0 zone resets clat (msec): min=24, max=805, avg=124.23, stdev=58.59 lat (msec): min=24, max=805, avg=124.23, stdev=58.59 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 197], 95.00th=[ 222], | 99.00th=[ 313], 99.50th=[ 351], 99.90th=[ 567], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 64, per=24.78%, avg=25.77, stdev=10.90, samples=468 iops : min= 1, max= 16, avg= 5.84, stdev= 2.79, samples=468 lat (msec) : 10=5.47%, 20=19.37%, 50=17.97%, 100=25.29%, 250=30.60% lat (msec) : 500=1.20%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5025, 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=99.4KiB/s (102kB/s), 24.6KiB/s-25.4KiB/s (25.2kB/s-25.0kB/s), io=23.4MiB (24.6MB), run=238623-241462msec WRITE: bw=104KiB/s (107kB/s), 26.1KiB/s-26.3KiB/s (26.7kB/s-26.9kB/s), io=24.6MiB (25.7MB), run=238623-241462msec 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=144789: Wed Sep 30 09:53:18 2026 read: IOPS=14, BW=239KiB/s (245kB/s)(5920KiB/24783msec) clat (usec): min=24, max=173540, avg=31274.17, stdev=26688.84 lat (usec): min=24, max=173542, avg=31275.37, stdev=26688.90 clat percentiles (usec): | 1.00th=[ 36], 5.00th=[ 48], 10.00th=[ 58], 20.00th=[ 76], | 30.00th=[ 16319], 40.00th=[ 22676], 50.00th=[ 30016], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 50594], 90.00th=[ 62129], 95.00th=[ 78119], | 99.00th=[104334], 99.50th=[166724], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 30, max= 573, per=24.65%, avg=238.08, stdev=107.67, samples=49 iops : min= 1, max= 35, avg=14.10, stdev= 6.74, samples=49 write: IOPS=16, BW=257KiB/s (263kB/s)(6368KiB/24783msec); 0 zone resets clat (usec): min=1165, max=241999, avg=32186.53, stdev=34429.09 lat (usec): min=1167, max=242000, avg=32188.50, stdev=34429.17 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1663], 10.00th=[ 1942], 20.00th=[ 3884], | 30.00th=[ 7308], 40.00th=[ 12387], 50.00th=[ 20055], 60.00th=[ 28967], | 70.00th=[ 40633], 80.00th=[ 58983], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[143655], 99.50th=[164627], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 93, max= 477, per=25.80%, avg=262.13, stdev=100.80, samples=48 iops : min= 5, max= 29, avg=15.62, stdev= 6.35, samples=48 lat (usec) : 50=2.99%, 100=7.81%, 250=0.91%, 500=0.13%, 750=0.13% lat (msec) : 2=5.73%, 4=5.47%, 10=8.33%, 20=11.33%, 50=34.51% lat (msec) : 100=19.79%, 250=2.86% cpu : usr=0.08%, sys=5.93%, ctx=1415, 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=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=144790: Wed Sep 30 09:53:18 2026 read: IOPS=14, BW=236KiB/s (242kB/s)(5744KiB/24338msec) clat (usec): min=34, max=187357, avg=34569.82, stdev=31097.77 lat (usec): min=35, max=187358, avg=34571.00, stdev=31097.78 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 61], 20.00th=[ 79], | 30.00th=[ 19792], 40.00th=[ 25560], 50.00th=[ 30278], 60.00th=[ 36439], | 70.00th=[ 44303], 80.00th=[ 54789], 90.00th=[ 68682], 95.00th=[ 86508], | 99.00th=[156238], 99.50th=[183501], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 379, per=24.53%, avg=236.96, stdev=78.59, samples=48 iops : min= 1, max= 23, avg=14.04, stdev= 4.96, samples=48 write: IOPS=16, BW=269KiB/s (275kB/s)(6544KiB/24338msec); 0 zone resets clat (usec): min=1346, max=218643, avg=28969.52, stdev=30880.27 lat (usec): min=1348, max=218645, avg=28971.42, stdev=30880.33 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1663], 10.00th=[ 1991], 20.00th=[ 3916], | 30.00th=[ 6587], 40.00th=[ 11076], 50.00th=[ 19006], 60.00th=[ 26346], | 70.00th=[ 35914], 80.00th=[ 51119], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[127402], 99.50th=[154141], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 95, max= 476, per=26.48%, avg=269.08, stdev=86.24, samples=48 iops : min= 5, max= 29, avg=16.08, stdev= 5.41, samples=48 lat (usec) : 50=1.69%, 100=8.20%, 250=0.39%, 500=0.26%, 750=0.26% lat (msec) : 2=5.60%, 4=5.34%, 10=9.24%, 20=10.68%, 50=36.33% lat (msec) : 100=18.88%, 250=3.12% cpu : usr=0.07%, sys=6.04%, ctx=1363, 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=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=144792: Wed Sep 30 09:53:18 2026 read: IOPS=16, BW=257KiB/s (263kB/s)(6256KiB/24379msec) clat (usec): min=33, max=172036, avg=31767.27, stdev=27341.46 lat (usec): min=33, max=172037, avg=31769.47, stdev=27341.70 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 73], | 30.00th=[ 18220], 40.00th=[ 24773], 50.00th=[ 30540], 60.00th=[ 36963], | 70.00th=[ 42730], 80.00th=[ 51643], 90.00th=[ 63701], 95.00th=[ 77071], | 99.00th=[130548], 99.50th=[160433], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 30, max= 383, per=26.70%, avg=257.96, stdev=96.88, samples=48 iops : min= 1, max= 23, avg=15.38, stdev= 6.08, samples=48 write: IOPS=15, BW=247KiB/s (253kB/s)(6032KiB/24379msec); 0 zone resets clat (usec): min=1218, max=410406, avg=31051.11, stdev=38308.08 lat (usec): min=1220, max=410408, avg=31058.35, stdev=38304.41 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1680], 10.00th=[ 1926], 20.00th=[ 3752], | 30.00th=[ 6915], 40.00th=[ 10814], 50.00th=[ 20317], 60.00th=[ 26084], | 70.00th=[ 39060], 80.00th=[ 51119], 90.00th=[ 76022], 95.00th=[ 91751], | 99.00th=[179307], 99.50th=[212861], 99.90th=[408945], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 62, max= 541, per=24.30%, avg=246.90, stdev=112.02, samples=48 iops : min= 3, max= 33, avg=14.67, stdev= 7.04, samples=48 lat (usec) : 50=2.47%, 100=9.51%, 250=0.78%, 500=0.26%, 750=0.13% lat (msec) : 2=5.47%, 4=5.21%, 10=8.07%, 20=8.72%, 50=38.02% lat (msec) : 100=18.36%, 250=2.86%, 500=0.13% cpu : usr=0.11%, sys=5.92%, ctx=1395, 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=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=144794: Wed Sep 30 09:53:18 2026 read: IOPS=15, BW=250KiB/s (256kB/s)(6032KiB/24147msec) clat (usec): min=28, max=154814, avg=32555.89, stdev=28652.36 lat (usec): min=28, max=154815, avg=32557.06, stdev=28652.39 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 12518], 40.00th=[ 23725], 50.00th=[ 31327], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55837], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[117965], 99.50th=[130548], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 95, max= 599, per=26.38%, avg=254.80, stdev=104.04, samples=46 iops : min= 5, max= 37, avg=15.17, stdev= 6.54, samples=46 write: IOPS=16, BW=259KiB/s (265kB/s)(6256KiB/24147msec); 0 zone resets clat (usec): min=1309, max=207959, avg=29582.37, stdev=35645.14 lat (usec): min=1310, max=207962, avg=29584.37, stdev=35645.18 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1647], 10.00th=[ 2343], 20.00th=[ 4146], | 30.00th=[ 5866], 40.00th=[ 8979], 50.00th=[ 13960], 60.00th=[ 22414], | 70.00th=[ 32375], 80.00th=[ 54264], 90.00th=[ 77071], 95.00th=[100140], | 99.00th=[156238], 99.50th=[196084], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 62, max= 573, per=25.69%, avg=261.00, stdev=106.36, samples=47 iops : min= 3, max= 35, avg=15.55, stdev= 6.71, samples=47 lat (usec) : 50=1.69%, 100=11.72%, 250=0.39%, 500=0.26%, 1000=0.13% lat (msec) : 2=4.17%, 4=6.12%, 10=11.98%, 20=9.90%, 50=28.91% lat (msec) : 100=21.09%, 250=3.65% cpu : usr=0.07%, sys=5.79%, ctx=1305, 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=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=966KiB/s (990kB/s), 236KiB/s-257KiB/s (242kB/s-263kB/s), io=23.4MiB (24.5MB), run=24147-24783msec WRITE: bw=1017KiB/s (1041kB/s), 247KiB/s-269KiB/s (253kB/s-275kB/s), io=24.6MiB (25.8MB), run=24147-24783msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144791: Wed Sep 30 09:53:57 2026 read: IOPS=5, BW=93.9KiB/s (96.1kB/s)(5920KiB/63064msec) clat (msec): min=6, max=183, avg=34.19, stdev=27.73 lat (msec): min=6, max=183, avg=34.21, stdev=27.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 67], 95.00th=[ 97], | 99.00th=[ 146], 99.50th=[ 171], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 30, max= 316, per=26.78%, avg=99.91, stdev=63.30, samples=117 iops : min= 1, max= 19, avg= 5.51, stdev= 4.00, samples=117 write: IOPS=6, BW=101KiB/s (103kB/s)(6368KiB/63064msec); 0 zone resets clat (msec): min=34, max=362, avg=125.91, stdev=54.90 lat (msec): min=34, max=362, avg=125.92, stdev=54.90 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 83], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 194], 95.00th=[ 236], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 255, per=25.81%, avg=101.44, stdev=41.07, samples=124 iops : min= 1, max= 15, avg= 5.60, stdev= 2.67, samples=124 lat (msec) : 10=2.08%, 20=14.84%, 50=22.79%, 100=25.65%, 250=32.55% lat (msec) : 500=2.08% cpu : usr=0.04%, sys=1.27%, ctx=1283, 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=144793: Wed Sep 30 09:53:57 2026 read: IOPS=5, BW=89.6KiB/s (91.8kB/s)(5744KiB/64083msec) clat (msec): min=6, max=210, avg=36.08, stdev=32.63 lat (msec): min=6, max=210, avg=36.08, stdev=32.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 52], 90.00th=[ 80], 95.00th=[ 111], | 99.00th=[ 157], 99.50th=[ 186], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 30, max= 384, per=26.76%, avg=99.82, stdev=65.85, samples=114 iops : min= 1, max= 24, avg= 5.52, stdev= 4.17, samples=114 write: IOPS=6, BW=102KiB/s (105kB/s)(6544KiB/64083msec); 0 zone resets clat (msec): min=39, max=370, avg=124.01, stdev=52.21 lat (msec): min=39, max=370, avg=124.02, stdev=52.21 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 115], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 159], 90.00th=[ 190], 95.00th=[ 228], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 192, per=26.25%, avg=103.14, stdev=40.86, samples=125 iops : min= 1, max= 12, avg= 5.72, stdev= 2.64, samples=125 lat (msec) : 10=2.73%, 20=15.36%, 50=19.66%, 100=25.91%, 250=35.03% lat (msec) : 500=1.30% cpu : usr=0.03%, sys=1.20%, ctx=1266, 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=144795: Wed Sep 30 09:53:57 2026 read: IOPS=6, BW=101KiB/s (103kB/s)(6256KiB/61921msec) clat (msec): min=5, max=207, avg=34.48, stdev=32.09 lat (msec): min=5, max=207, avg=34.48, stdev=32.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 43], 90.00th=[ 66], 95.00th=[ 107], | 99.00th=[ 192], 99.50th=[ 201], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 319, per=28.78%, avg=107.36, stdev=71.13, samples=115 iops : min= 1, max= 19, avg= 5.97, stdev= 4.47, samples=115 write: IOPS=6, BW=97.4KiB/s (99.8kB/s)(6032KiB/61921msec); 0 zone resets clat (msec): min=43, max=363, avg=127.47, stdev=51.61 lat (msec): min=43, max=363, avg=127.47, stdev=51.61 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 133], | 70.00th=[ 148], 80.00th=[ 165], 90.00th=[ 199], 95.00th=[ 224], | 99.00th=[ 300], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 160, per=25.25%, avg=99.25, stdev=34.71, samples=118 iops : min= 1, max= 10, avg= 5.47, stdev= 2.28, samples=118 lat (msec) : 10=2.99%, 20=17.32%, 50=22.79%, 100=22.92%, 250=32.94% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.23%, ctx=1291, 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=144796: Wed Sep 30 09:53:57 2026 read: IOPS=6, BW=96.4KiB/s (98.7kB/s)(6032KiB/62604msec) clat (msec): min=5, max=183, avg=32.93, stdev=27.23 lat (msec): min=5, max=183, avg=32.93, stdev=27.23 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 72], 95.00th=[ 97], | 99.00th=[ 140], 99.50th=[ 157], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 31, max= 319, per=28.04%, avg=104.58, stdev=63.50, samples=113 iops : min= 1, max= 19, avg= 5.81, stdev= 4.02, samples=113 write: IOPS=6, BW=99.9KiB/s (102kB/s)(6256KiB/62604msec); 0 zone resets clat (msec): min=37, max=408, avg=128.08, stdev=58.16 lat (msec): min=37, max=408, avg=128.08, stdev=58.16 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 97], 40.00th=[ 105], 50.00th=[ 114], 60.00th=[ 126], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 205], 95.00th=[ 247], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 31, max= 223, per=25.55%, avg=100.42, stdev=40.76, samples=123 iops : min= 1, max= 13, avg= 5.54, stdev= 2.63, samples=123 lat (msec) : 10=2.73%, 20=16.28%, 50=23.31%, 100=22.40%, 250=33.07% lat (msec) : 500=2.21% cpu : usr=0.04%, sys=1.25%, ctx=1288, 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=374KiB/s (383kB/s), 89.6KiB/s-101KiB/s (91.8kB/s-103kB/s), io=23.4MiB (24.5MB), run=61921-64083msec WRITE: bw=393KiB/s (403kB/s), 97.4KiB/s-102KiB/s (99.8kB/s-105kB/s), io=24.6MiB (25.8MB), run=61921-64083msec 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=144813: Wed Sep 30 09:54:14 2026 read: IOPS=1, BW=1089KiB/s (1116kB/s)(7168KiB/6580msec) clat (usec): min=476, max=4522.0k, avg=792759.99, stdev=1650874.52 lat (usec): min=477, max=4522.0k, avg=792761.59, stdev=1650874.65 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], | 20.00th=[ 586], 30.00th=[ 187696], 40.00th=[ 187696], | 50.00th=[ 193987], 60.00th=[ 238027], 70.00th=[ 238027], | 80.00th=[ 404751], 90.00th=[4529849], 95.00th=[4529849], | 99.00th=[4529849], 99.50th=[4529849], 99.90th=[4529849], | 99.95th=[4529849], 99.99th=[4529849] bw ( KiB/s): min= 2003, max= 6131, per=100.00%, avg=3046.00, stdev=2056.69, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=778KiB/s (797kB/s)(5120KiB/6580msec); 0 zone resets clat (msec): min=126, max=283, avg=172.85, stdev=64.30 lat (msec): min=126, max=283, avg=172.93, stdev=64.31 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 171], 80.00th=[ 171], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2043, max= 6131, per=100.00%, avg=4087.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=58.33%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=6.82%, ctx=452, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144814: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=300KiB/s (307kB/s)(2048KiB/6826msec) clat (usec): min=790, max=164250, avg=82520.41, stdev=115583.75 lat (usec): min=792, max=164253, avg=82522.66, stdev=115584.29 clat percentiles (usec): | 1.00th=[ 791], 5.00th=[ 791], 10.00th=[ 791], 20.00th=[ 791], | 30.00th=[ 791], 40.00th=[ 791], 50.00th=[ 791], 60.00th=[164627], | 70.00th=[164627], 80.00th=[164627], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 2023, max= 2043, per=71.03%, avg=2033.00, stdev=14.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1500KiB/s (1536kB/s)(10.0MiB/6826msec); 0 zone resets clat (msec): min=98, max=3092, avg=658.51, stdev=904.46 lat (msec): min=99, max=3092, avg=659.13, stdev=904.12 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 131], | 30.00th=[ 251], 40.00th=[ 257], 50.00th=[ 268], 60.00th=[ 296], | 70.00th=[ 388], 80.00th=[ 751], 90.00th=[ 1053], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 2023, max= 6144, per=90.65%, avg=3632.20, stdev=1709.15, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.05, samples=5 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=6.71%, ctx=115, 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=144816: Wed Sep 30 09:54:14 2026 read: IOPS=1, BW=1067KiB/s (1093kB/s)(6144KiB/5757msec) clat (usec): min=524, max=415803, avg=141619.25, stdev=173495.56 lat (usec): min=532, max=415804, avg=141621.92, stdev=173493.97 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 668], | 30.00th=[ 668], 40.00th=[ 1991], 50.00th=[ 1991], 60.00th=[164627], | 70.00th=[265290], 80.00th=[265290], 90.00th=[417334], 95.00th=[417334], | 99.00th=[417334], 99.50th=[417334], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 3893, max= 4087, per=100.00%, avg=3990.00, stdev=137.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1067KiB/s (1093kB/s)(6144KiB/5757msec); 0 zone resets clat (msec): min=180, max=2685, avg=768.87, stdev=971.99 lat (msec): min=180, max=2685, avg=770.01, stdev=971.39 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 347], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 1389, max= 2043, per=46.30%, avg=1855.25, stdev=314.18, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=16.67%, 500=41.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.42%, ctx=142, 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=144818: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=716KiB/s (733kB/s)(5120KiB/7154msec) clat (usec): min=829, max=358182, avg=215586.68, stdev=132769.93 lat (usec): min=838, max=358184, avg=215589.95, stdev=132766.93 clat percentiles (usec): | 1.00th=[ 832], 5.00th=[ 832], 10.00th=[ 832], 20.00th=[ 832], | 30.00th=[210764], 40.00th=[210764], 50.00th=[229639], 60.00th=[229639], | 70.00th=[278922], 80.00th=[278922], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 2043, max= 6119, per=100.00%, avg=4081.00, stdev=2882.17, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=1002KiB/s (1026kB/s)(7168KiB/7154msec); 0 zone resets clat (msec): min=159, max=3425, avg=821.04, stdev=1163.20 lat (msec): min=159, max=3425, avg=821.13, stdev=1163.19 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 275], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 347], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 718], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 2023, max= 3984, per=69.58%, avg=2788.20, stdev=1037.73, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.13%, ctx=257, 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=2863KiB/s (2931kB/s), 300KiB/s-1089KiB/s (307kB/s-1116kB/s), io=20.0MiB (20.0MB), run=5757-7154msec WRITE: bw=4008KiB/s (4104kB/s), 778KiB/s-1500KiB/s (797kB/s-1536kB/s), io=28.0MiB (29.4MB), run=5757-7154msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144815: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=957KiB/s (980kB/s)(7168KiB/7493msec) clat (msec): min=71, max=3861, avg=787.46, stdev=1369.41 lat (msec): min=71, max=3861, avg=787.46, stdev=1369.41 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 110], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 309], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 567], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 1486, max= 4015, per=84.82%, avg=2318.00, stdev=977.45, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=683KiB/s (700kB/s)(5120KiB/7493msec); 0 zone resets clat (msec): min=163, max=454, avg=320.15, stdev=104.97 lat (msec): min=164, max=454, avg=321.24, stdev=104.75 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 2015, max= 4039, per=70.37%, avg=2692.33, stdev=1166.25, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=2.15%, ctx=73, 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=144817: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=278KiB/s (285kB/s)(2048KiB/7356msec) clat (msec): min=103, max=540, avg=321.79, stdev=308.77 lat (msec): min=103, max=540, avg=321.80, stdev=308.77 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 104], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 2031, max= 2048, per=74.62%, avg=2039.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1392KiB/s (1425kB/s)(10.0MiB/7356msec); 0 zone resets clat (msec): min=194, max=2977, avg=633.55, stdev=840.68 lat (msec): min=194, max=2977, avg=633.75, stdev=840.67 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 224], | 30.00th=[ 228], 40.00th=[ 296], 50.00th=[ 305], 60.00th=[ 359], | 70.00th=[ 426], 80.00th=[ 651], 90.00th=[ 676], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 1992, max= 5988, per=79.01%, avg=3022.83, stdev=1664.57, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=2.81%, ctx=93, 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=144819: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=821KiB/s (841kB/s)(6144KiB/7485msec) clat (msec): min=87, max=292, avg=176.18, stdev=85.85 lat (msec): min=87, max=292, avg=176.18, stdev=85.85 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 207], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1996, max= 4055, per=92.51%, avg=2528.25, stdev=1018.01, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=821KiB/s (841kB/s)(6144KiB/7485msec); 0 zone resets clat (msec): min=161, max=3181, avg=1000.85, stdev=1102.70 lat (msec): min=161, max=3181, avg=1000.95, stdev=1102.70 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 760], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 1992, max= 2043, per=52.90%, avg=2024.00, stdev=19.87, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=2.45%, ctx=121, 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=144820: Wed Sep 30 09:54:14 2026 read: IOPS=0, BW=765KiB/s (784kB/s)(5120KiB/6689msec) clat (msec): min=108, max=603, avg=265.19, stdev=201.88 lat (msec): min=108, max=603, avg=265.19, stdev=201.88 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 213], 60.00th=[ 213], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 3984, max= 4096, per=100.00%, avg=4040.00, stdev=79.20, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1072KiB/s (1097kB/s)(7168KiB/6689msec); 0 zone resets clat (msec): min=146, max=3287, avg=753.14, stdev=1134.91 lat (msec): min=146, max=3287, avg=753.47, stdev=1134.80 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 205], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 760], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 1460, max= 4071, per=62.53%, avg=2392.25, stdev=1149.81, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=1.81%, ctx=56, 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=2733KiB/s (2799kB/s), 278KiB/s-957KiB/s (285kB/s-980kB/s), io=20.0MiB (20.0MB), run=6689-7493msec WRITE: bw=3827KiB/s (3918kB/s), 683KiB/s-1392KiB/s (700kB/s-1425kB/s), io=28.0MiB (29.4MB), run=6689-7493msec 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=144829: Wed Sep 30 09:54:27 2026 read: IOPS=1, BW=4694KiB/s (4806kB/s)(12.0MiB/2618msec) clat (msec): min=695, max=1018, avg=844.97, stdev=163.00 lat (msec): min=695, max=1018, avg=844.98, stdev=163.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, 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=11.62%, ctx=308, 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=144830: Wed Sep 30 09:54:27 2026 read: IOPS=0, BW=1604KiB/s (1643kB/s)(4096KiB/2553msec) clat (nsec): min=1122.6M, max=1122.6M, avg=1122635487.00, stdev= 0.00 lat (nsec): min=1122.6M, max=1122.6M, avg=1122638207.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 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= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3209KiB/s (3286kB/s)(8192KiB/2553msec); 0 zone resets clat (msec): min=416, max=931, avg=673.94, stdev=364.30 lat (msec): min=416, max=931, avg=674.21, stdev=364.38 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8192, max= 8192, per=63.83%, 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=9.64%, ctx=223, 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=144831: Wed Sep 30 09:54:27 2026 write: IOPS=2, BW=8917KiB/s (9131kB/s)(12.0MiB/1378msec); 0 zone resets clat (msec): min=362, max=536, avg=440.88, stdev=88.24 lat (msec): min=363, max=537, avg=441.60, stdev=88.24 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 6196, max= 8126, per=55.79%, avg=7161.00, stdev=1364.72, 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=7.26%, ctx=58, 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=144832: Wed Sep 30 09:54:27 2026 write: IOPS=1, BW=4845KiB/s (4962kB/s)(12.0MiB/2536msec); 0 zone resets clat (msec): min=421, max=1462, avg=815.42, stdev=564.91 lat (msec): min=422, max=1462, avg=816.05, stdev=564.55 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min=16253, max=16253, per=100.00%, avg=16253.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.09%, ctx=59, 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=6258KiB/s (6408kB/s), 1604KiB/s-4694KiB/s (1643kB/s-4806kB/s), io=16.0MiB (16.8MB), run=2553-2618msec WRITE: bw=12.5MiB/s (13.1MB/s), 3209KiB/s-8917KiB/s (3286kB/s-9131kB/s), io=32.0MiB (33.6MB), run=1378-2553msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144834: Wed Sep 30 09:54:28 2026 read: IOPS=1, BW=4798KiB/s (4913kB/s)(12.0MiB/2561msec) clat (msec): min=729, max=990, avg=830.37, stdev=140.60 lat (msec): min=729, max=990, avg=830.37, stdev=140.60 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7892, max= 7922, per=100.00%, avg=7907.00, stdev=21.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=3.55%, ctx=49, majf=0, minf=8 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=144835: Wed Sep 30 09:54:28 2026 read: IOPS=0, BW=1577KiB/s (1614kB/s)(4096KiB/2598msec) clat (nsec): min=1107.1M, max=1107.1M, avg=1107078736.00, stdev= 0.00 lat (nsec): min=1107.1M, max=1107.1M, avg=1107081216.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1099], 5.00th=[ 1099], 10.00th=[ 1099], 20.00th=[ 1099], | 30.00th=[ 1099], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3153KiB/s (3229kB/s)(8192KiB/2598msec); 0 zone resets clat (msec): min=484, max=932, avg=708.52, stdev=316.35 lat (msec): min=485, max=932, avg=709.11, stdev=316.30 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7907, max= 7907, per=75.51%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.31%, ctx=43, 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=144836: Wed Sep 30 09:54:28 2026 write: IOPS=0, BW=3927KiB/s (4021kB/s)(12.0MiB/3129msec); 0 zone resets clat (msec): min=257, max=1565, avg=987.45, stdev=667.02 lat (msec): min=258, max=1565, avg=988.04, stdev=666.65 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7892, max= 7892, per=75.36%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.19%, ctx=62, majf=0, minf=8 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=144837: Wed Sep 30 09:54:28 2026 write: IOPS=1, BW=5165KiB/s (5289kB/s)(12.0MiB/2379msec); 0 zone resets clat (msec): min=347, max=1196, avg=719.03, stdev=434.46 lat (msec): min=348, max=1198, avg=719.63, stdev=434.95 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 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= 7907, max= 7922, per=75.58%, avg=7914.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.63%, ctx=59, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6306KiB/s (6458kB/s), 1577KiB/s-4798KiB/s (1614kB/s-4913kB/s), io=16.0MiB (16.8MB), run=2561-2598msec WRITE: bw=10.2MiB/s (10.7MB/s), 3153KiB/s-5165KiB/s (3229kB/s-5289kB/s), io=32.0MiB (33.6MB), run=2379-3129msec