== sanity test 398b: DIO and buffer IO race ============== 23:02:53 (1784343773) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.0326 s, 16.6 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=195246: Fri Jul 17 23:04:05 2026 read: IOPS=24, BW=98.1KiB/s (100kB/s)(5992KiB/61092msec) clat (usec): min=39, max=789954, avg=22244.11, stdev=23355.26 lat (usec): min=40, max=797734, avg=22250.20, stdev=23526.32 clat percentiles (usec): | 1.00th=[ 77], 5.00th=[ 7963], 10.00th=[ 10028], 20.00th=[ 12256], | 30.00th=[ 14353], 40.00th=[ 16909], 50.00th=[ 19530], 60.00th=[ 22414], | 70.00th=[ 26084], 80.00th=[ 29754], 90.00th=[ 36963], 95.00th=[ 43779], | 99.00th=[ 61080], 99.50th=[ 79168], 99.90th=[101188], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 32, max= 160, per=25.29%, avg=98.63, stdev=26.70, samples=120 iops : min= 8, max= 40, avg=24.17, stdev= 6.69, samples=120 write: IOPS=25, BW=103KiB/s (106kB/s)(6296KiB/61092msec); 0 zone resets clat (usec): min=922, max=141165, avg=17542.52, stdev=14916.94 lat (usec): min=923, max=141166, avg=17544.18, stdev=14916.65 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2180], 10.00th=[ 2835], 20.00th=[ 4113], | 30.00th=[ 6325], 40.00th=[ 11076], 50.00th=[ 14353], 60.00th=[ 17957], | 70.00th=[ 22152], 80.00th=[ 28181], 90.00th=[ 36963], 95.00th=[ 45351], | 99.00th=[ 64226], 99.50th=[ 72877], 99.90th=[111674], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 23, max= 184, per=25.41%, avg=103.67, stdev=30.58, samples=120 iops : min= 5, max= 46, avg=25.43, stdev= 7.68, samples=120 lat (usec) : 50=0.16%, 100=0.68%, 250=0.65%, 500=0.03%, 1000=0.10% lat (msec) : 2=2.05%, 4=7.85%, 10=12.43%, 20=35.19%, 50=37.60% lat (msec) : 100=3.09%, 250=0.13%, 1000=0.03% cpu : usr=0.09%, sys=18.37%, ctx=8638, 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=195247: Fri Jul 17 23:04:05 2026 read: IOPS=24, BW=96.9KiB/s (99.3kB/s)(5940KiB/61284msec) clat (usec): min=45, max=101085, avg=21958.51, stdev=12186.39 lat (usec): min=45, max=101086, avg=21959.63, stdev=12186.50 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 8291], 10.00th=[ 10028], 20.00th=[ 12649], | 30.00th=[ 14746], 40.00th=[ 16909], 50.00th=[ 19530], 60.00th=[ 22152], | 70.00th=[ 25297], 80.00th=[ 30016], 90.00th=[ 37487], 95.00th=[ 45351], | 99.00th=[ 64750], 99.50th=[ 71828], 99.90th=[ 85459], 99.95th=[101188], | 99.99th=[101188] bw ( KiB/s): min= 6, max= 151, per=24.71%, avg=96.36, stdev=26.88, samples=121 iops : min= 1, max= 37, avg=23.60, stdev= 6.78, samples=121 write: IOPS=25, BW=104KiB/s (106kB/s)(6348KiB/61284msec); 0 zone resets clat (usec): min=1122, max=772953, avg=17964.85, stdev=24144.95 lat (usec): min=1123, max=772954, avg=17966.90, stdev=24145.12 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2073], 10.00th=[ 2802], 20.00th=[ 3884], | 30.00th=[ 5997], 40.00th=[ 10683], 50.00th=[ 14091], 60.00th=[ 17695], | 70.00th=[ 22414], 80.00th=[ 28181], 90.00th=[ 38011], 95.00th=[ 46400], | 99.00th=[ 65799], 99.50th=[ 78119], 99.90th=[139461], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 39, max= 184, per=25.33%, avg=103.37, stdev=29.68, samples=120 iops : min= 9, max= 46, avg=25.35, stdev= 7.48, samples=120 lat (usec) : 50=0.10%, 100=0.59%, 250=0.52%, 750=0.03%, 1000=0.03% lat (msec) : 2=2.41%, 4=8.33%, 10=12.43%, 20=34.24%, 50=37.92% lat (msec) : 100=3.29%, 250=0.07%, 1000=0.03% cpu : usr=0.12%, sys=18.26%, ctx=8676, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195248: Fri Jul 17 23:04:05 2026 read: IOPS=24, BW=98.6KiB/s (101kB/s)(6028KiB/61136msec) clat (usec): min=34, max=104393, avg=21763.43, stdev=12570.17 lat (usec): min=35, max=104394, avg=21766.37, stdev=12570.75 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 7242], 10.00th=[ 9765], 20.00th=[ 12256], | 30.00th=[ 14484], 40.00th=[ 16909], 50.00th=[ 19792], 60.00th=[ 22414], | 70.00th=[ 26084], 80.00th=[ 30016], 90.00th=[ 36439], 95.00th=[ 43254], | 99.00th=[ 64226], 99.50th=[ 77071], 99.90th=[ 99091], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 39, max= 183, per=25.38%, avg=98.97, stdev=25.19, samples=120 iops : min= 9, max= 45, avg=24.25, stdev= 6.32, samples=120 write: IOPS=25, BW=102KiB/s (105kB/s)(6260KiB/61136msec); 0 zone resets clat (usec): min=960, max=738651, avg=17991.87, stdev=23305.06 lat (usec): min=961, max=738653, avg=17995.44, stdev=23306.31 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 2089], 10.00th=[ 2769], 20.00th=[ 4080], | 30.00th=[ 6194], 40.00th=[ 10814], 50.00th=[ 14353], 60.00th=[ 17957], | 70.00th=[ 22414], 80.00th=[ 29230], 90.00th=[ 38011], 95.00th=[ 45351], | 99.00th=[ 62129], 99.50th=[ 67634], 99.90th=[104334], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 31, max= 190, per=25.19%, avg=102.78, stdev=31.29, samples=120 iops : min= 7, max= 47, avg=25.20, stdev= 7.87, samples=120 lat (usec) : 50=0.26%, 100=0.78%, 250=0.88%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=2.15%, 4=7.62%, 10=12.47%, 20=33.46%, 50=38.93% lat (msec) : 100=3.03%, 250=0.07%, 750=0.03% cpu : usr=0.10%, sys=18.19%, ctx=8661, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195249: Fri Jul 17 23:04:05 2026 read: IOPS=24, BW=98.3KiB/s (101kB/s)(6052KiB/61554msec) clat (usec): min=45, max=98656, avg=21707.30, stdev=11570.37 lat (usec): min=46, max=98657, avg=21713.20, stdev=11575.64 clat percentiles (usec): | 1.00th=[ 77], 5.00th=[ 8225], 10.00th=[ 9765], 20.00th=[12256], | 30.00th=[14484], 40.00th=[17171], 50.00th=[19792], 60.00th=[22676], | 70.00th=[25822], 80.00th=[30016], 90.00th=[36439], 95.00th=[42206], | 99.00th=[56886], 99.50th=[71828], 99.90th=[95945], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 48, max= 160, per=25.28%, avg=98.60, stdev=21.92, samples=121 iops : min= 12, max= 40, avg=24.16, stdev= 5.54, samples=121 write: IOPS=25, BW=101KiB/s (104kB/s)(6236KiB/61554msec); 0 zone resets clat (usec): min=746, max=740244, avg=18311.78, stdev=23801.82 lat (usec): min=746, max=740245, avg=18317.45, stdev=23800.41 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 2089], 10.00th=[ 2835], 20.00th=[ 3949], | 30.00th=[ 6259], 40.00th=[ 11076], 50.00th=[ 14222], 60.00th=[ 17957], | 70.00th=[ 23200], 80.00th=[ 28967], 90.00th=[ 39060], 95.00th=[ 47449], | 99.00th=[ 64226], 99.50th=[ 86508], 99.90th=[101188], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 13, max= 183, per=24.69%, avg=100.72, stdev=29.45, samples=122 iops : min= 3, max= 45, avg=24.69, stdev= 7.38, samples=122 lat (usec) : 50=0.13%, 100=0.78%, 250=0.36%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=2.08%, 4=8.11%, 10=12.60%, 20=33.33%, 50=39.23% lat (msec) : 100=3.06%, 250=0.03%, 750=0.03% cpu : usr=0.14%, sys=18.27%, ctx=8673, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=390KiB/s (399kB/s), 96.9KiB/s-98.6KiB/s (99.3kB/s-101kB/s), io=23.4MiB (24.6MB), run=61092-61554msec WRITE: bw=408KiB/s (418kB/s), 101KiB/s-104KiB/s (104kB/s-106kB/s), io=24.6MiB (25.7MB), run=61092-61554msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195241: Fri Jul 17 23:04:19 2026 read: IOPS=19, BW=79.4KiB/s (81.3kB/s)(5992KiB/75492msec) clat (msec): min=3, max=786, avg=20.66, stdev=25.94 lat (msec): min=3, max=786, avg=20.66, stdev=25.94 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 44], 95.00th=[ 56], | 99.00th=[ 83], 99.50th=[ 101], 99.90th=[ 142], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 15, max= 240, per=25.24%, avg=79.50, stdev=49.25, samples=149 iops : min= 3, max= 60, avg=19.40, stdev=12.35, samples=149 write: IOPS=20, BW=83.4KiB/s (85.4kB/s)(6296KiB/75492msec); 0 zone resets clat (msec): min=5, max=134, avg=28.16, stdev=18.08 lat (msec): min=5, max=134, avg=28.16, stdev=18.08 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 53], 95.00th=[ 64], | 99.00th=[ 93], 99.50th=[ 103], 99.90th=[ 126], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 8, max= 232, per=25.28%, avg=83.43, stdev=49.74, samples=149 iops : min= 2, max= 58, avg=20.38, stdev=12.50, samples=149 lat (msec) : 4=0.16%, 10=17.97%, 20=36.75%, 50=35.64%, 100=8.89% lat (msec) : 250=0.55%, 1000=0.03% cpu : usr=0.09%, sys=8.72%, ctx=5919, 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=195242: Fri Jul 17 23:04:19 2026 read: IOPS=19, BW=78.1KiB/s (80.0kB/s)(5940KiB/76025msec) clat (msec): min=3, max=736, avg=20.24, stdev=25.26 lat (msec): min=3, max=736, avg=20.24, stdev=25.26 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 42], 95.00th=[ 56], | 99.00th=[ 85], 99.50th=[ 97], 99.90th=[ 161], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 8, max= 240, per=24.82%, avg=78.17, stdev=50.43, samples=150 iops : min= 2, max= 60, avg=19.07, stdev=12.67, samples=150 write: IOPS=20, BW=83.5KiB/s (85.5kB/s)(6348KiB/76025msec); 0 zone resets clat (msec): min=7, max=131, avg=28.82, stdev=18.26 lat (msec): min=7, max=131, avg=28.82, stdev=18.26 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 54], 95.00th=[ 66], | 99.00th=[ 91], 99.50th=[ 99], 99.90th=[ 124], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 23, max= 224, per=25.27%, avg=83.40, stdev=47.96, samples=150 iops : min= 5, max= 56, avg=20.38, stdev=12.05, samples=150 lat (msec) : 4=0.16%, 10=17.58%, 20=37.37%, 50=35.51%, 100=8.95% lat (msec) : 250=0.39%, 750=0.03% cpu : usr=0.11%, sys=8.69%, ctx=5751, 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=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=195243: Fri Jul 17 23:04:19 2026 read: IOPS=19, BW=79.6KiB/s (81.5kB/s)(6028KiB/75699msec) clat (msec): min=3, max=126, avg=19.99, stdev=16.58 lat (msec): min=3, max=126, avg=20.00, stdev=16.58 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 44], 95.00th=[ 53], | 99.00th=[ 85], 99.50th=[ 95], 99.90th=[ 111], 99.95th=[ 127], | 99.99th=[ 127] bw ( KiB/s): min= 16, max= 232, per=25.26%, avg=79.56, stdev=49.10, samples=149 iops : min= 4, max= 58, avg=19.42, stdev=12.31, samples=149 write: IOPS=20, BW=82.7KiB/s (84.7kB/s)(6260KiB/75699msec); 0 zone resets clat (msec): min=6, max=751, avg=28.97, stdev=26.23 lat (msec): min=6, max=751, avg=28.97, stdev=26.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 54], 95.00th=[ 66], | 99.00th=[ 97], 99.50th=[ 113], 99.90th=[ 133], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 16, max= 224, per=24.99%, avg=82.46, stdev=47.94, samples=149 iops : min= 4, max= 56, avg=20.14, stdev=12.05, samples=149 lat (msec) : 4=0.03%, 10=18.16%, 20=37.40%, 50=35.32%, 100=8.46% lat (msec) : 250=0.59%, 1000=0.03% cpu : usr=0.12%, sys=8.80%, ctx=5807, 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=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=195244: Fri Jul 17 23:04:19 2026 read: IOPS=19, BW=79.6KiB/s (81.5kB/s)(6052KiB/76015msec) clat (msec): min=3, max=161, avg=20.26, stdev=17.13 lat (msec): min=3, max=161, avg=20.26, stdev=17.13 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 45], 95.00th=[ 55], | 99.00th=[ 81], 99.50th=[ 90], 99.90th=[ 125], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 15, max= 248, per=25.46%, avg=80.20, stdev=50.39, samples=149 iops : min= 3, max= 62, avg=19.58, stdev=12.68, samples=149 write: IOPS=20, BW=82.0KiB/s (84.0kB/s)(6236KiB/76015msec); 0 zone resets clat (msec): min=5, max=758, avg=28.94, stdev=26.44 lat (msec): min=5, max=758, avg=28.95, stdev=26.44 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 67], | 99.00th=[ 102], 99.50th=[ 112], 99.90th=[ 134], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 23, max= 223, per=24.84%, avg=81.97, stdev=48.21, samples=150 iops : min= 5, max= 55, avg=20.02, stdev=12.11, samples=150 lat (msec) : 4=0.13%, 10=18.13%, 20=37.21%, 50=35.48%, 100=8.30% lat (msec) : 250=0.72%, 1000=0.03% cpu : usr=0.11%, sys=8.63%, ctx=5789, 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=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=316KiB/s (323kB/s), 78.1KiB/s-79.6KiB/s (80.0kB/s-81.5kB/s), io=23.4MiB (24.6MB), run=75492-76025msec WRITE: bw=331KiB/s (339kB/s), 82.0KiB/s-83.5KiB/s (84.0kB/s-85.5kB/s), io=24.6MiB (25.7MB), run=75492-76025msec 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=195275: Fri Jul 17 23:04:42 2026 read: IOPS=22, BW=357KiB/s (365kB/s)(5920KiB/16599msec) clat (usec): min=41, max=94079, avg=22932.31, stdev=12959.75 lat (usec): min=43, max=94080, avg=22933.31, stdev=12959.77 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 676], 10.00th=[10683], 20.00th=[13435], | 30.00th=[16188], 40.00th=[18744], 50.00th=[20841], 60.00th=[23200], | 70.00th=[27132], 80.00th=[29754], 90.00th=[37487], 95.00th=[47973], | 99.00th=[71828], 99.50th=[83362], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 192, max= 574, per=24.36%, avg=348.31, stdev=81.95, samples=32 iops : min= 12, max= 35, avg=21.16, stdev= 5.05, samples=32 write: IOPS=23, BW=384KiB/s (393kB/s)(6368KiB/16599msec); 0 zone resets clat (usec): min=1393, max=93817, avg=20274.44, stdev=15526.81 lat (usec): min=1395, max=93819, avg=20277.53, stdev=15526.16 clat percentiles (usec): | 1.00th=[ 2180], 5.00th=[ 3720], 10.00th=[ 4424], 20.00th=[ 6390], | 30.00th=[ 9110], 40.00th=[13042], 50.00th=[16581], 60.00th=[20055], | 70.00th=[25822], 80.00th=[32113], 90.00th=[42206], 95.00th=[51643], | 99.00th=[66323], 99.50th=[89654], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 224, max= 608, per=25.37%, avg=381.84, stdev=104.72, samples=32 iops : min= 14, max= 38, avg=23.28, stdev= 6.51, samples=32 lat (usec) : 50=0.13%, 100=1.30%, 250=0.78%, 500=0.13%, 750=0.13% lat (msec) : 2=0.26%, 4=2.99%, 10=14.58%, 20=32.16%, 50=43.10% lat (msec) : 100=4.43% cpu : usr=0.11%, sys=20.26%, ctx=2535, 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=195276: Fri Jul 17 23:04:42 2026 read: IOPS=21, BW=348KiB/s (356kB/s)(5744KiB/16509msec) clat (usec): min=55, max=72053, avg=23713.87, stdev=12975.62 lat (usec): min=55, max=72054, avg=23714.83, stdev=12975.67 clat percentiles (usec): | 1.00th=[ 81], 5.00th=[ 247], 10.00th=[10683], 20.00th=[14222], | 30.00th=[16450], 40.00th=[19006], 50.00th=[21890], 60.00th=[25035], | 70.00th=[27657], 80.00th=[31589], 90.00th=[41157], 95.00th=[50594], | 99.00th=[63177], 99.50th=[67634], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 192, max= 542, per=24.27%, avg=347.06, stdev=93.47, samples=32 iops : min= 12, max= 33, avg=21.09, stdev= 5.72, samples=32 write: IOPS=24, BW=396KiB/s (406kB/s)(6544KiB/16509msec); 0 zone resets clat (usec): min=1689, max=102131, avg=19386.37, stdev=14727.69 lat (usec): min=1691, max=102132, avg=19388.17, stdev=14727.78 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 30], 90.00th=[ 39], 95.00th=[ 48], | 99.00th=[ 70], 99.50th=[ 79], 99.90th=[ 103], 99.95th=[ 103], | 99.99th=[ 103] bw ( KiB/s): min= 191, max= 608, per=26.08%, avg=392.44, stdev=112.89, samples=32 iops : min= 11, max= 38, avg=23.94, stdev= 7.02, samples=32 lat (usec) : 100=0.78%, 250=1.56%, 500=0.13% lat (msec) : 2=0.13%, 4=3.91%, 10=14.97%, 20=31.12%, 50=42.71% lat (msec) : 100=4.56%, 250=0.13% cpu : usr=0.09%, sys=20.64%, ctx=2613, 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=195277: Fri Jul 17 23:04:42 2026 read: IOPS=23, BW=376KiB/s (385kB/s)(6256KiB/16652msec) clat (usec): min=52, max=78912, avg=23632.53, stdev=13188.47 lat (usec): min=52, max=78913, avg=23633.64, stdev=13188.60 clat percentiles (usec): | 1.00th=[ 66], 5.00th=[ 133], 10.00th=[10159], 20.00th=[13698], | 30.00th=[16712], 40.00th=[19268], 50.00th=[22414], 60.00th=[25297], | 70.00th=[27919], 80.00th=[31589], 90.00th=[40109], 95.00th=[47973], | 99.00th=[64226], 99.50th=[76022], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 127, max= 574, per=26.26%, avg=375.56, stdev=115.68, samples=32 iops : min= 7, max= 35, avg=22.88, stdev= 7.21, samples=32 write: IOPS=22, BW=362KiB/s (371kB/s)(6032KiB/16652msec); 0 zone resets clat (usec): min=1726, max=82648, avg=19254.39, stdev=14731.72 lat (usec): min=1727, max=82650, avg=19256.49, stdev=14732.22 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2835], 10.00th=[ 4113], 20.00th=[ 5669], | 30.00th=[ 8455], 40.00th=[12387], 50.00th=[15533], 60.00th=[19268], | 70.00th=[25035], 80.00th=[31589], 90.00th=[38536], 95.00th=[47973], | 99.00th=[65274], 99.50th=[80217], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 158, max= 573, per=23.49%, avg=353.47, stdev=106.10, samples=32 iops : min= 9, max= 35, avg=21.50, stdev= 6.60, samples=32 lat (usec) : 100=1.69%, 250=1.69%, 500=0.13% lat (msec) : 2=0.91%, 4=3.78%, 10=13.67%, 20=29.56%, 50=44.53% lat (msec) : 100=4.04% cpu : usr=0.09%, sys=20.18%, ctx=2628, 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=195278: Fri Jul 17 23:04:42 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(6032KiB/16744msec) clat (usec): min=62, max=98286, avg=24228.52, stdev=13928.07 lat (usec): min=64, max=98286, avg=24230.81, stdev=13927.87 clat percentiles (usec): | 1.00th=[ 92], 5.00th=[ 258], 10.00th=[11338], 20.00th=[14615], | 30.00th=[16909], 40.00th=[18744], 50.00th=[21627], 60.00th=[25035], | 70.00th=[28443], 80.00th=[32637], 90.00th=[41157], 95.00th=[50594], | 99.00th=[67634], 99.50th=[83362], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 192, max= 574, per=25.04%, avg=358.06, stdev=83.65, samples=33 iops : min= 12, max= 35, avg=21.76, stdev= 5.12, samples=33 write: IOPS=23, BW=374KiB/s (383kB/s)(6256KiB/16744msec); 0 zone resets clat (usec): min=1743, max=97011, avg=19122.36, stdev=15656.18 lat (usec): min=1745, max=97013, avg=19124.35, stdev=15656.10 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3064], 10.00th=[ 3884], 20.00th=[ 6128], | 30.00th=[ 9241], 40.00th=[12256], 50.00th=[15139], 60.00th=[18220], | 70.00th=[22676], 80.00th=[30540], 90.00th=[40633], 95.00th=[47449], | 99.00th=[77071], 99.50th=[92799], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 222, max= 631, per=24.85%, avg=374.03, stdev=100.89, samples=33 iops : min= 13, max= 39, avg=22.79, stdev= 6.25, samples=33 lat (usec) : 100=0.52%, 250=1.82%, 500=0.13%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.52%, 4=5.08%, 10=12.76%, 20=34.11%, 50=40.23% lat (msec) : 100=4.56% cpu : usr=0.10%, sys=20.34%, ctx=2625, 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=1430KiB/s (1465kB/s), 348KiB/s-376KiB/s (356kB/s-385kB/s), io=23.4MiB (24.5MB), run=16509-16744msec WRITE: bw=1505KiB/s (1541kB/s), 362KiB/s-396KiB/s (371kB/s-406kB/s), io=24.6MiB (25.8MB), run=16509-16744msec fio: pid=195282, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=195279: Fri Jul 17 23:04:45 2026 read: IOPS=18, BW=294KiB/s (301kB/s)(5920KiB/20155msec) clat (usec): min=4904, max=79506, avg=20455.33, stdev=15618.82 lat (usec): min=4905, max=79506, avg=20456.24, stdev=15618.75 clat percentiles (usec): | 1.00th=[ 5669], 5.00th=[ 6587], 10.00th=[ 7177], 20.00th=[ 8586], | 30.00th=[10159], 40.00th=[11994], 50.00th=[14222], 60.00th=[17171], | 70.00th=[22414], 80.00th=[30802], 90.00th=[42730], 95.00th=[54264], | 99.00th=[73925], 99.50th=[79168], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 95, max= 768, per=26.02%, avg=283.31, stdev=171.45, samples=39 iops : min= 5, max= 48, avg=17.10, stdev=10.83, samples=39 write: IOPS=19, BW=316KiB/s (324kB/s)(6368KiB/20155msec); 0 zone resets clat (msec): min=9, max=161, avg=31.53, stdev=21.49 lat (msec): min=9, max=161, avg=31.53, stdev=21.49 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 63], 95.00th=[ 75], | 99.00th=[ 103], 99.50th=[ 114], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 127, max= 830, per=26.50%, avg=303.97, stdev=151.64, samples=39 iops : min= 7, max= 51, avg=18.41, stdev= 9.51, samples=39 lat (msec) : 10=14.97%, 20=36.20%, 50=35.55%, 100=12.63%, 250=0.65% cpu : usr=0.09%, sys=9.32%, ctx=1568, 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=195280: Fri Jul 17 23:04:45 2026 read: IOPS=17, BW=286KiB/s (293kB/s)(5744KiB/20087msec) clat (msec): min=5, max=137, avg=21.75, stdev=18.31 lat (msec): min=5, max=137, avg=21.75, stdev=18.31 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 32], 90.00th=[ 50], 95.00th=[ 60], | 99.00th=[ 80], 99.50th=[ 125], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 63, max= 672, per=25.84%, avg=281.44, stdev=151.74, samples=39 iops : min= 3, max= 42, avg=17.00, stdev= 9.55, samples=39 write: IOPS=20, BW=326KiB/s (334kB/s)(6544KiB/20087msec); 0 zone resets clat (msec): min=8, max=114, avg=29.69, stdev=18.00 lat (msec): min=8, max=114, avg=29.69, stdev=18.00 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 56], 95.00th=[ 66], | 99.00th=[ 92], 99.50th=[ 100], 99.90th=[ 115], 99.95th=[ 115], | 99.99th=[ 115] bw ( KiB/s): min= 96, max= 862, per=27.53%, avg=315.79, stdev=161.77, samples=39 iops : min= 6, max= 53, avg=19.15, stdev=10.17, samples=39 lat (msec) : 10=12.11%, 20=39.71%, 50=36.46%, 100=11.20%, 250=0.52% cpu : usr=0.08%, sys=9.57%, ctx=1579, 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=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=195281: Fri Jul 17 23:04:45 2026 read: IOPS=19, BW=315KiB/s (323kB/s)(6256KiB/19847msec) clat (usec): min=4772, max=96520, avg=21536.43, stdev=15633.36 lat (usec): min=4773, max=96520, avg=21537.41, stdev=15633.32 clat percentiles (usec): | 1.00th=[ 5342], 5.00th=[ 6718], 10.00th=[ 7635], 20.00th=[ 9110], | 30.00th=[11207], 40.00th=[13435], 50.00th=[15795], 60.00th=[19792], | 70.00th=[23987], 80.00th=[31851], 90.00th=[44827], 95.00th=[53740], | 99.00th=[76022], 99.50th=[76022], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 126, max= 924, per=28.82%, avg=313.85, stdev=175.03, samples=39 iops : min= 7, max= 57, avg=19.03, stdev=10.96, samples=39 write: IOPS=18, BW=304KiB/s (311kB/s)(6032KiB/19847msec); 0 zone resets clat (msec): min=7, max=156, avg=30.05, stdev=19.35 lat (msec): min=7, max=156, avg=30.05, stdev=19.36 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 56], 95.00th=[ 70], | 99.00th=[ 97], 99.50th=[ 103], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 95, max= 736, per=25.98%, avg=298.03, stdev=150.54, samples=39 iops : min= 5, max= 46, avg=18.03, stdev= 9.54, samples=39 lat (msec) : 10=13.28%, 20=37.37%, 50=39.06%, 100=9.90%, 250=0.39% cpu : usr=0.10%, sys=9.58%, ctx=1575, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=195282: Fri Jul 17 23:04:45 2026 read: IOPS=14, BW=233KiB/s (239kB/s)(4048KiB/17337msec) clat (msec): min=7, max=127, avg=28.56, stdev=20.13 lat (msec): min=7, max=127, avg=28.56, stdev=20.13 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 57], 95.00th=[ 65], | 99.00th=[ 95], 99.50th=[ 125], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 95, max= 512, per=21.18%, avg=230.65, stdev=92.41, samples=34 iops : min= 5, max= 32, avg=13.82, stdev= 5.95, samples=34 write: IOPS=15, BW=241KiB/s (247kB/s)(4176KiB/17337msec); 0 zone resets clat (msec): min=10, max=118, avg=38.14, stdev=18.77 lat (msec): min=10, max=118, avg=38.15, stdev=18.77 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 40], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 64], 95.00th=[ 71], | 99.00th=[ 101], 99.50th=[ 104], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 95, max= 416, per=20.83%, avg=238.91, stdev=65.22, samples=34 iops : min= 5, max= 26, avg=14.32, stdev= 4.20, samples=34 lat (msec) : 10=4.08%, 20=27.77%, 50=48.74%, 100=18.45%, 250=0.78% cpu : usr=0.05%, sys=8.87%, ctx=1024, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=254,261,0,0 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=1090KiB/s (1116kB/s), 233KiB/s-315KiB/s (239kB/s-323kB/s), io=21.5MiB (22.5MB), run=17337-20155msec WRITE: bw=1147KiB/s (1175kB/s), 241KiB/s-326KiB/s (247kB/s-334kB/s), io=22.6MiB (23.7MB), run=17337-20155msec 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=195289: Fri Jul 17 23:04:54 2026 read: IOPS=2, BW=2102KiB/s (2153kB/s)(7168KiB/3410msec) clat (msec): min=105, max=312, avg=183.42, stdev=83.22 lat (msec): min=105, max=312, avg=183.42, stdev=83.22 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 108], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 171], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 275], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1957, max= 5242, per=53.85%, avg=2821.25, stdev=1614.34, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=1, BW=1501KiB/s (1538kB/s)(5120KiB/3410msec); 0 zone resets clat (msec): min=245, max=542, avg=423.26, stdev=127.26 lat (msec): min=245, max=542, avg=423.35, stdev=127.27 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 535], 80.00th=[ 535], 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= 1939, max= 4087, per=34.28%, avg=2514.25, stdev=1049.36, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=16.67% cpu : usr=0.03%, sys=47.81%, ctx=844, 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=195290: Fri Jul 17 23:04:54 2026 read: IOPS=0, BW=533KiB/s (546kB/s)(2048KiB/3843msec) clat (usec): min=661, max=468906, avg=234783.89, stdev=331099.06 lat (usec): min=662, max=468908, avg=234785.84, stdev=331099.88 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 660], 10.00th=[ 660], 20.00th=[ 660], | 30.00th=[ 660], 40.00th=[ 660], 50.00th=[ 660], 60.00th=[467665], | 70.00th=[467665], 80.00th=[467665], 90.00th=[467665], 95.00th=[467665], | 99.00th=[467665], 99.50th=[467665], 99.90th=[467665], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 1762, max= 2043, per=36.31%, avg=1902.50, stdev=198.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2665KiB/s (2729kB/s)(10.0MiB/3843msec); 0 zone resets clat (msec): min=173, max=596, avg=331.81, stdev=150.34 lat (msec): min=173, max=596, avg=331.93, stdev=150.38 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 190], | 30.00th=[ 201], 40.00th=[ 249], 50.00th=[ 259], 60.00th=[ 305], | 70.00th=[ 351], 80.00th=[ 472], 90.00th=[ 527], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1939, max= 4087, per=41.10%, avg=3014.17, stdev=1135.92, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=48.54%, ctx=427, 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=195291: Fri Jul 17 23:04:54 2026 read: IOPS=1, BW=1787KiB/s (1829kB/s)(6144KiB/3439msec) clat (usec): min=575, max=344663, avg=180085.75, stdev=126166.19 lat (usec): min=576, max=344665, avg=180087.12, stdev=126166.25 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 61080], | 30.00th=[ 61080], 40.00th=[214959], 50.00th=[214959], 60.00th=[227541], | 70.00th=[229639], 80.00th=[229639], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 1939, max= 5873, per=62.70%, avg=3285.00, stdev=2241.88, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1787KiB/s (1829kB/s)(6144KiB/3439msec); 0 zone resets clat (msec): min=165, max=623, avg=385.97, stdev=184.97 lat (msec): min=165, max=623, avg=386.05, stdev=184.97 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 418], | 70.00th=[ 575], 80.00th=[ 575], 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= 1957, max= 3506, per=32.55%, avg=2387.25, stdev=746.93, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=39.24%, ctx=269, 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=195292: Fri Jul 17 23:04:54 2026 read: IOPS=1, BW=1310KiB/s (1341kB/s)(5120KiB/3909msec) clat (usec): min=359, max=485484, avg=145781.68, stdev=216712.41 lat (usec): min=360, max=485484, avg=145782.68, stdev=216712.07 clat percentiles (usec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[ 807], 60.00th=[ 807], | 70.00th=[242222], 80.00th=[242222], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 2043, max= 5818, per=75.02%, avg=3930.50, stdev=2669.33, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1834KiB/s (1878kB/s)(7168KiB/3909msec); 0 zone resets clat (msec): min=199, max=726, avg=444.12, stdev=188.57 lat (msec): min=199, max=726, avg=444.21, stdev=188.57 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 253], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 439], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 634], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1735, max= 2043, per=26.35%, avg=1932.40, stdev=117.20, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 250=16.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=35.36%, ctx=176, 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=5239KiB/s (5365kB/s), 533KiB/s-2102KiB/s (546kB/s-2153kB/s), io=20.0MiB (20.0MB), run=3410-3909msec WRITE: bw=7335KiB/s (7511kB/s), 1501KiB/s-2665KiB/s (1538kB/s-2729kB/s), io=28.0MiB (29.4MB), run=3410-3909msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195294: Fri Jul 17 23:04:54 2026 read: IOPS=1, BW=1811KiB/s (1855kB/s)(7168KiB/3957msec) clat (msec): min=63, max=486, avg=177.81, stdev=146.16 lat (msec): min=63, max=486, avg=177.81, stdev=146.16 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 105], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 115], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 239], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 1996, max= 5019, per=58.20%, avg=2773.25, stdev=1497.30, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1294KiB/s (1325kB/s)(5120KiB/3957msec); 0 zone resets clat (msec): min=348, max=630, avg=537.45, stdev=113.16 lat (msec): min=348, max=630, avg=537.54, stdev=113.14 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1828, max= 2043, per=29.64%, avg=1977.50, stdev=101.54, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=20.05%, ctx=156, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=195295: Fri Jul 17 23:04:54 2026 read: IOPS=0, BW=507KiB/s (519kB/s)(2048KiB/4043msec) clat (msec): min=109, max=443, avg=276.52, stdev=235.77 lat (msec): min=109, max=443, avg=276.52, stdev=235.77 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 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= 1700, max= 2000, per=38.82%, avg=1850.00, stdev=212.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2533KiB/s (2594kB/s)(10.0MiB/4043msec); 0 zone resets clat (msec): min=51, max=792, avg=340.45, stdev=252.42 lat (msec): min=51, max=792, avg=340.56, stdev=252.44 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 78], | 30.00th=[ 110], 40.00th=[ 126], 50.00th=[ 321], 60.00th=[ 359], | 70.00th=[ 456], 80.00th=[ 485], 90.00th=[ 625], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1996, max= 4079, per=41.29%, avg=2754.20, stdev=1027.78, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.07%, sys=23.18%, ctx=381, 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=195296: Fri Jul 17 23:04:54 2026 read: IOPS=1, BW=1447KiB/s (1482kB/s)(6144KiB/4246msec) clat (msec): min=58, max=762, avg=397.30, stdev=280.79 lat (msec): min=58, max=762, avg=397.30, stdev=280.79 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 77], | 30.00th=[ 77], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 498], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1828, max= 4096, per=52.25%, avg=2489.75, stdev=1074.70, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1447KiB/s (1482kB/s)(6144KiB/4246msec); 0 zone resets clat (msec): min=66, max=730, avg=294.71, stdev=243.26 lat (msec): min=66, max=730, avg=294.79, stdev=243.26 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 73], | 30.00th=[ 73], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 284], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1678, max= 4096, per=35.54%, avg=2371.20, stdev=976.13, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 100=33.33%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=13.22%, ctx=144, 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=195297: Fri Jul 17 23:04:54 2026 read: IOPS=1, BW=1191KiB/s (1220kB/s)(5120KiB/4298msec) clat (msec): min=34, max=720, avg=313.03, stdev=267.17 lat (msec): min=34, max=720, avg=313.03, stdev=267.17 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 35], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2000, max= 4079, per=56.85%, avg=2709.00, stdev=1186.70, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1668KiB/s (1708kB/s)(7168KiB/4298msec); 0 zone resets clat (msec): min=82, max=855, avg=379.70, stdev=309.30 lat (msec): min=82, max=855, avg=379.80, stdev=309.28 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 93], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 300], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 609], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 2039, max= 4096, per=44.35%, avg=2958.75, stdev=1074.78, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=16.67%, 500=25.00%, 750=25.00% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=12.92%, ctx=139, 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=4765KiB/s (4879kB/s), 507KiB/s-1811KiB/s (519kB/s-1855kB/s), io=20.0MiB (20.0MB), run=3957-4298msec WRITE: bw=6671KiB/s (6831kB/s), 1294KiB/s-2533KiB/s (1325kB/s-2594kB/s), io=28.0MiB (29.4MB), run=3957-4298msec 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=195308: Fri Jul 17 23:05:04 2026 read: IOPS=1, BW=4981KiB/s (5100kB/s)(12.0MiB/2467msec) clat (msec): min=220, max=1811, avg=812.10, stdev=870.36 lat (msec): min=220, max=1811, avg=812.10, stdev=870.36 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min=16286, max=16286, per=100.00%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=13.42%, ctx=78, majf=0, minf=7 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=195309: Fri Jul 17 23:05:04 2026 read: IOPS=0, BW=1669KiB/s (1709kB/s)(4096KiB/2454msec) clat (nsec): min=1610.5M, max=1610.5M, avg=1610545655.00, stdev= 0.00 lat (nsec): min=1610.5M, max=1610.5M, avg=1610548019.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1603], 5.00th=[ 1603], 10.00th=[ 1603], 20.00th=[ 1603], | 30.00th=[ 1603], 40.00th=[ 1603], 50.00th=[ 1603], 60.00th=[ 1603], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 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 write: IOPS=0, BW=3338KiB/s (3418kB/s)(8192KiB/2454msec); 0 zone resets clat (msec): min=255, max=564, avg=409.92, stdev=218.28 lat (msec): min=256, max=564, avg=410.40, stdev=218.14 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 8143, max= 8143, per=60.99%, avg=8143.00, 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=0.04%, 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=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=195310: Fri Jul 17 23:05:04 2026 write: IOPS=1, BW=5742KiB/s (5880kB/s)(12.0MiB/2140msec); 0 zone resets clat (msec): min=367, max=1157, avg=706.48, stdev=406.93 lat (msec): min=367, max=1158, avg=706.80, stdev=407.06 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8192, max= 8192, per=61.35%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.09%, sys=16.69%, ctx=71, majf=0, minf=7 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=195311: Fri Jul 17 23:05:04 2026 write: IOPS=1, BW=5135KiB/s (5258kB/s)(12.0MiB/2393msec); 0 zone resets clat (msec): min=638, max=899, avg=790.07, stdev=135.16 lat (msec): min=639, max=899, avg=790.44, stdev=135.09 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7984, max= 8192, per=60.58%, avg=8088.00, stdev=147.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.04%, sys=16.10%, ctx=85, 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 Run status group 0 (all jobs): READ: bw=6641KiB/s (6801kB/s), 1669KiB/s-4981KiB/s (1709kB/s-5100kB/s), io=16.0MiB (16.8MB), run=2454-2467msec WRITE: bw=13.0MiB/s (13.7MB/s), 3338KiB/s-5742KiB/s (3418kB/s-5880kB/s), io=32.0MiB (33.6MB), run=2140-2454msec rand-rw: (groupid=0, jobs=1): err= 0: pid=195304: Fri Jul 17 23:05:04 2026 read: IOPS=1, BW=7429KiB/s (7608kB/s)(12.0MiB/1654msec) clat (msec): min=465, max=575, avg=537.11, stdev=62.27 lat (msec): min=465, max=575, avg=537.12, stdev=62.26 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7571, max= 8192, per=100.00%, avg=7881.50, stdev=439.11, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=49.43%, ctx=2416, 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=195305: Fri Jul 17 23:05:04 2026 read: IOPS=0, BW=1915KiB/s (1961kB/s)(4096KiB/2139msec) clat (nsec): min=472161k, max=472161k, avg=472161465.00, stdev= 0.00 lat (nsec): min=472164k, max=472164k, avg=472163532.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7670, max= 7670, per=100.00%, avg=7670.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3830KiB/s (3922kB/s)(8192KiB/2139msec); 0 zone resets clat (msec): min=606, max=1021, avg=814.13, stdev=292.98 lat (msec): min=607, max=1021, avg=814.46, stdev=292.92 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 8192, max= 8192, per=68.18%, 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=24.60%, ctx=786, 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=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=195306: Fri Jul 17 23:05:04 2026 write: IOPS=1, BW=4506KiB/s (4614kB/s)(12.0MiB/2727msec); 0 zone resets clat (msec): min=99, max=1955, avg=895.62, stdev=955.65 lat (msec): min=99, max=1955, avg=895.99, stdev=955.73 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 1955], 80.00th=[ 1955], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7922, max= 7922, per=65.93%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=13.17%, ctx=77, 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=195307: Fri Jul 17 23:05:04 2026 write: IOPS=1, BW=5745KiB/s (5883kB/s)(12.0MiB/2139msec); 0 zone resets clat (msec): min=316, max=1324, avg=708.15, stdev=540.39 lat (msec): min=316, max=1324, avg=708.38, stdev=540.40 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 5626, max= 8192, per=57.50%, avg=6909.00, stdev=1814.44, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=15.76%, ctx=75, 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=7660KiB/s (7843kB/s), 1915KiB/s-7429KiB/s (1961kB/s-7608kB/s), io=16.0MiB (16.8MB), run=1654-2139msec WRITE: bw=11.7MiB/s (12.3MB/s), 3830KiB/s-5745KiB/s (3922kB/s-5883kB/s), io=32.0MiB (33.6MB), run=2139-2727msec