== sanity test 398b: DIO and buffer IO race ============== 14:51:54 (1777575114) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.37884 s, 6.8 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=158506: Thu Apr 30 14:54:43 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5992KiB/145420msec) clat (usec): min=30, max=1061.4k, avg=47283.39, stdev=45016.94 lat (usec): min=30, max=1061.4k, avg=47287.75, stdev=45017.31 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 72], | 20.00th=[ 20579], 30.00th=[ 27395], 40.00th=[ 32637], | 50.00th=[ 39584], 60.00th=[ 47449], 70.00th=[ 58983], | 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[ 112722], | 99.00th=[ 156238], 99.50th=[ 193987], 99.90th=[ 463471], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 102, per=25.22%, avg=41.11, stdev=17.17, samples=283 iops : min= 1, max= 25, avg= 9.64, stdev= 4.33, samples=283 write: IOPS=10, BW=43.3KiB/s (44.3kB/s)(6296KiB/145420msec); 0 zone resets clat (usec): min=952, max=329283, avg=47132.25, stdev=48592.52 lat (usec): min=954, max=329284, avg=47138.27, stdev=48600.21 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1303], 10.00th=[ 1565], 20.00th=[ 4490], | 30.00th=[ 10159], 40.00th=[ 21890], 50.00th=[ 34341], 60.00th=[ 47973], | 70.00th=[ 62129], 80.00th=[ 82314], 90.00th=[110625], 95.00th=[139461], | 99.00th=[225444], 99.50th=[252707], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 109, per=25.28%, avg=43.23, stdev=18.95, samples=283 iops : min= 1, max= 27, avg=10.17, stdev= 4.79, samples=283 lat (usec) : 50=1.27%, 100=4.52%, 250=0.39%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.03% lat (msec) : 2=6.32%, 4=3.29%, 10=5.96%, 20=7.16%, 50=32.94% lat (msec) : 100=28.09%, 250=9.41%, 500=0.36%, 2000=0.03% cpu : usr=0.07%, sys=5.03%, ctx=6477, 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=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=158507: Thu Apr 30 14:54:43 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5940KiB/144061msec) clat (usec): min=31, max=275527, avg=45193.47, stdev=34302.46 lat (usec): min=31, max=275528, avg=45203.12, stdev=34313.61 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 76], 20.00th=[ 19530], | 30.00th=[ 26608], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[106431], | 99.00th=[158335], 99.50th=[175113], 99.90th=[261096], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 5, max= 95, per=25.33%, avg=41.28, stdev=18.12, samples=280 iops : min= 1, max= 23, avg= 9.68, stdev= 4.57, samples=280 write: IOPS=11, BW=44.1KiB/s (45.1kB/s)(6348KiB/144061msec); 0 zone resets clat (usec): min=1009, max=817522, avg=48229.44, stdev=53339.35 lat (usec): min=1010, max=817525, avg=48236.23, stdev=53344.12 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1696], 20.00th=[ 4359], | 30.00th=[ 9765], 40.00th=[ 21103], 50.00th=[ 34866], 60.00th=[ 47973], | 70.00th=[ 64226], 80.00th=[ 84411], 90.00th=[115868], 95.00th=[145753], | 99.00th=[198181], 99.50th=[250610], 99.90th=[492831], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 112, per=25.47%, avg=43.56, stdev=18.82, samples=283 iops : min= 1, max= 28, avg=10.25, stdev= 4.75, samples=283 lat (usec) : 50=0.94%, 100=4.62%, 250=0.29%, 500=0.10% lat (msec) : 2=6.22%, 4=3.87%, 10=6.18%, 20=8.04%, 50=32.52% lat (msec) : 100=26.53%, 250=10.35%, 500=0.29%, 1000=0.03% cpu : usr=0.08%, sys=5.12%, ctx=6461, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158508: Thu Apr 30 14:54:43 2026 read: IOPS=10, BW=41.0KiB/s (41.0kB/s)(6028KiB/146979msec) clat (usec): min=27, max=243476, avg=44038.27, stdev=32707.96 lat (usec): min=27, max=243478, avg=44039.89, stdev=32708.06 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 70], 20.00th=[ 19792], | 30.00th=[ 26346], 40.00th=[ 32113], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 55313], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[147850], 99.50th=[181404], 99.90th=[217056], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 7, max= 102, per=25.25%, avg=41.15, stdev=17.37, samples=284 iops : min= 1, max= 25, avg= 9.64, stdev= 4.36, samples=284 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6260KiB/146979msec); 0 zone resets clat (usec): min=1074, max=862599, avg=51243.96, stdev=54417.81 lat (usec): min=1075, max=862604, avg=51252.20, stdev=54417.83 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1303], 10.00th=[ 1729], 20.00th=[ 5473], | 30.00th=[ 11338], 40.00th=[ 26084], 50.00th=[ 38536], 60.00th=[ 53216], | 70.00th=[ 67634], 80.00th=[ 85459], 90.00th=[116917], 95.00th=[145753], | 99.00th=[225444], 99.50th=[248513], 99.90th=[400557], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 95, per=24.58%, avg=42.03, stdev=17.36, samples=288 iops : min= 1, max= 23, avg= 9.87, stdev= 4.38, samples=288 lat (usec) : 50=1.24%, 100=4.92%, 250=0.36%, 500=0.23%, 1000=0.03% lat (msec) : 2=5.53%, 4=2.99%, 10=6.18%, 20=7.00%, 50=32.45% lat (msec) : 100=28.58%, 250=10.25%, 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=4.87%, ctx=6470, 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=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=158509: Thu Apr 30 14:54:43 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6052KiB/145620msec) clat (usec): min=30, max=372050, avg=44799.10, stdev=37841.42 lat (usec): min=30, max=372052, avg=44802.88, stdev=37842.27 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 18220], | 30.00th=[ 25822], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 45351], | 70.00th=[ 55837], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[105382], | 99.00th=[162530], 99.50th=[210764], 99.90th=[362808], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 109, per=25.93%, avg=42.27, stdev=19.03, samples=279 iops : min= 1, max= 27, avg= 9.93, stdev= 4.80, samples=279 write: IOPS=10, BW=42.8KiB/s (43.9kB/s)(6236KiB/145620msec); 0 zone resets clat (usec): min=1009, max=821252, avg=49657.93, stdev=53066.03 lat (usec): min=1010, max=821257, avg=49662.64, stdev=53064.80 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1565], 20.00th=[ 5800], | 30.00th=[ 12387], 40.00th=[ 23200], 50.00th=[ 36963], 60.00th=[ 49546], | 70.00th=[ 65274], 80.00th=[ 85459], 90.00th=[114820], 95.00th=[141558], | 99.00th=[202376], 99.50th=[274727], 99.90th=[429917], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 112, per=24.86%, avg=42.51, stdev=18.91, samples=286 iops : min= 1, max= 28, avg= 9.99, stdev= 4.77, samples=286 lat (usec) : 50=1.24%, 100=5.76%, 250=0.46%, 500=0.07%, 1000=0.03% lat (msec) : 2=5.92%, 4=2.60%, 10=5.57%, 20=8.69%, 50=31.90% lat (msec) : 100=27.08%, 250=10.19%, 500=0.46%, 1000=0.03% cpu : usr=0.07%, sys=5.01%, ctx=6345, 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=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=163KiB/s (167kB/s), 41.0KiB/s-41.6KiB/s (41.0kB/s-42.6kB/s), io=23.4MiB (24.6MB), run=144061-146979msec WRITE: bw=171KiB/s (175kB/s), 42.6KiB/s-44.1KiB/s (43.6kB/s-45.1kB/s), io=24.6MiB (25.7MB), run=144061-146979msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158502: Thu Apr 30 14:57:37 2026 read: IOPS=4, BW=18.8KiB/s (19.3kB/s)(5992KiB/318502msec) clat (msec): min=4, max=1096, avg=40.73, stdev=51.24 lat (msec): min=4, max=1096, avg=40.73, stdev=51.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 56], 90.00th=[ 90], 95.00th=[ 115], | 99.00th=[ 192], 99.50th=[ 236], 99.90th=[ 726], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 71, per=30.35%, avg=22.46, stdev=14.74, samples=513 iops : min= 1, max= 17, avg= 4.98, stdev= 3.73, samples=513 write: IOPS=4, BW=19.8KiB/s (20.2kB/s)(6296KiB/318502msec); 0 zone resets clat (msec): min=42, max=469, avg=163.33, stdev=70.71 lat (msec): min=42, max=469, avg=163.33, stdev=70.71 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 81], 10.00th=[ 92], 20.00th=[ 106], | 30.00th=[ 118], 40.00th=[ 133], 50.00th=[ 146], 60.00th=[ 165], | 70.00th=[ 182], 80.00th=[ 213], 90.00th=[ 264], 95.00th=[ 309], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 468], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 40, per=25.19%, avg=19.65, stdev= 8.23, samples=612 iops : min= 1, max= 10, avg= 4.27, stdev= 2.12, samples=612 lat (msec) : 10=1.33%, 20=15.20%, 50=21.52%, 100=14.68%, 250=41.05% lat (msec) : 500=6.12%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5195, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158503: Thu Apr 30 14:57:37 2026 read: IOPS=4, BW=18.5KiB/s (18.9kB/s)(5940KiB/320970msec) clat (msec): min=6, max=858, avg=40.55, stdev=45.31 lat (msec): min=6, max=858, avg=40.56, stdev=45.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 87], 95.00th=[ 117], | 99.00th=[ 207], 99.50th=[ 257], 99.90th=[ 558], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 80, per=29.33%, avg=21.70, stdev=14.53, samples=525 iops : min= 1, max= 20, avg= 4.78, stdev= 3.67, samples=525 write: IOPS=4, BW=19.8KiB/s (20.3kB/s)(6348KiB/320970msec); 0 zone resets clat (msec): min=41, max=588, avg=164.01, stdev=74.74 lat (msec): min=41, max=588, avg=164.01, stdev=74.74 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 79], 10.00th=[ 89], 20.00th=[ 104], | 30.00th=[ 118], 40.00th=[ 132], 50.00th=[ 148], 60.00th=[ 165], | 70.00th=[ 184], 80.00th=[ 209], 90.00th=[ 266], 95.00th=[ 317], | 99.00th=[ 418], 99.50th=[ 443], 99.90th=[ 567], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 48, per=25.21%, avg=19.67, stdev= 8.70, samples=617 iops : min= 1, max= 12, avg= 4.27, stdev= 2.25, samples=617 lat (msec) : 10=1.27%, 20=13.96%, 50=22.62%, 100=15.98%, 250=39.49% lat (msec) : 500=6.48%, 750=0.16%, 1000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5184, 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=158504: Thu Apr 30 14:57:37 2026 read: IOPS=4, BW=18.8KiB/s (19.3kB/s)(6028KiB/319886msec) clat (msec): min=6, max=557, avg=40.75, stdev=41.43 lat (msec): min=6, max=557, avg=40.75, stdev=41.44 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 90], 95.00th=[ 122], | 99.00th=[ 184], 99.50th=[ 253], 99.90th=[ 435], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 95, per=29.78%, avg=22.03, stdev=15.42, samples=526 iops : min= 1, max= 23, avg= 4.88, stdev= 3.89, samples=526 write: IOPS=4, BW=19.6KiB/s (20.0kB/s)(6260KiB/319886msec); 0 zone resets clat (msec): min=50, max=876, avg=164.88, stdev=77.89 lat (msec): min=50, max=876, avg=164.88, stdev=77.89 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 81], 10.00th=[ 90], 20.00th=[ 106], | 30.00th=[ 118], 40.00th=[ 132], 50.00th=[ 146], 60.00th=[ 163], | 70.00th=[ 184], 80.00th=[ 211], 90.00th=[ 271], 95.00th=[ 313], | 99.00th=[ 443], 99.50th=[ 477], 99.90th=[ 684], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 40, per=24.86%, avg=19.39, stdev= 8.65, samples=617 iops : min= 1, max= 10, avg= 4.20, stdev= 2.22, samples=617 lat (msec) : 10=1.11%, 20=14.97%, 50=21.68%, 100=15.79%, 250=39.97% lat (msec) : 500=6.25%, 750=0.20%, 1000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5105, 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=158505: Thu Apr 30 14:57:37 2026 read: IOPS=4, BW=19.1KiB/s (19.5kB/s)(6052KiB/317159msec) clat (msec): min=6, max=735, avg=40.49, stdev=46.03 lat (msec): min=6, max=735, avg=40.49, stdev=46.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 87], 95.00th=[ 124], | 99.00th=[ 186], 99.50th=[ 284], 99.90th=[ 558], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 87, per=30.27%, avg=22.40, stdev=15.54, samples=520 iops : min= 1, max= 21, avg= 4.96, stdev= 3.94, samples=520 write: IOPS=4, BW=19.7KiB/s (20.1kB/s)(6236KiB/317159msec); 0 zone resets clat (msec): min=46, max=868, avg=163.86, stdev=75.73 lat (msec): min=46, max=868, avg=163.86, stdev=75.73 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 78], 10.00th=[ 88], 20.00th=[ 106], | 30.00th=[ 118], 40.00th=[ 131], 50.00th=[ 146], 60.00th=[ 163], | 70.00th=[ 184], 80.00th=[ 215], 90.00th=[ 264], 95.00th=[ 313], | 99.00th=[ 409], 99.50th=[ 439], 99.90th=[ 600], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 40, per=24.83%, avg=19.37, stdev= 8.61, samples=616 iops : min= 1, max= 10, avg= 4.20, stdev= 2.22, samples=616 lat (msec) : 10=1.53%, 20=14.94%, 50=22.30%, 100=15.49%, 250=39.06% lat (msec) : 500=6.51%, 750=0.13%, 1000=0.03% cpu : usr=0.03%, sys=1.15%, ctx=5186, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=74.8KiB/s (76.6kB/s), 18.5KiB/s-19.1KiB/s (18.9kB/s-19.5kB/s), io=23.4MiB (24.6MB), run=317159-320970msec WRITE: bw=78.3KiB/s (80.2kB/s), 19.6KiB/s-19.8KiB/s (20.0kB/s-20.3kB/s), io=24.6MiB (25.7MB), run=317159-320970msec 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=158573: Thu Apr 30 14:58:24 2026 read: IOPS=10, BW=163KiB/s (167kB/s)(5920KiB/36214msec) clat (usec): min=38, max=385815, avg=46023.15, stdev=38789.85 lat (usec): min=38, max=385816, avg=46024.47, stdev=38789.84 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 101], | 30.00th=[ 27132], 40.00th=[ 35914], 50.00th=[ 44303], 60.00th=[ 52167], | 70.00th=[ 60556], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[109577], | 99.00th=[149947], 99.50th=[158335], 99.90th=[383779], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 30, max= 411, per=24.75%, avg=162.63, stdev=69.54, samples=71 iops : min= 1, max= 25, avg= 9.37, stdev= 4.42, samples=71 write: IOPS=10, BW=176KiB/s (180kB/s)(6368KiB/36214msec); 0 zone resets clat (usec): min=1474, max=425884, avg=47325.89, stdev=52158.09 lat (usec): min=1477, max=425885, avg=47328.06, stdev=52158.10 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1844], 10.00th=[ 3195], 20.00th=[ 7570], | 30.00th=[ 12256], 40.00th=[ 22152], 50.00th=[ 33817], 60.00th=[ 45351], | 70.00th=[ 58459], 80.00th=[ 79168], 90.00th=[112722], 95.00th=[137364], | 99.00th=[308282], 99.50th=[333448], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 29, max= 351, per=25.43%, avg=175.70, stdev=71.38, samples=71 iops : min= 1, max= 21, avg=10.20, stdev= 4.45, samples=71 lat (usec) : 50=1.17%, 100=8.33%, 250=0.65%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=3.91%, 4=2.73%, 10=6.77%, 20=7.68%, 50=28.65% lat (msec) : 100=29.43%, 250=9.64%, 500=0.65% cpu : usr=0.10%, sys=5.16%, ctx=1461, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158574: Thu Apr 30 14:58:24 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(5744KiB/35866msec) clat (usec): min=38, max=277564, avg=52143.27, stdev=44580.89 lat (usec): min=38, max=277566, avg=52147.61, stdev=44579.95 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 61], 20.00th=[ 297], | 30.00th=[ 31851], 40.00th=[ 38011], 50.00th=[ 46400], 60.00th=[ 56361], | 70.00th=[ 66847], 80.00th=[ 80217], 90.00th=[101188], 95.00th=[130548], | 99.00th=[244319], 99.50th=[252707], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 29, max= 285, per=24.22%, avg=159.10, stdev=61.21, samples=70 iops : min= 1, max= 17, avg= 9.14, stdev= 3.88, samples=70 write: IOPS=11, BW=182KiB/s (187kB/s)(6544KiB/35866msec); 0 zone resets clat (usec): min=1428, max=246083, avg=41023.20, stdev=43088.06 lat (usec): min=1429, max=246083, avg=41026.58, stdev=43087.91 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1844], 10.00th=[ 2442], 20.00th=[ 5932], | 30.00th=[ 10814], 40.00th=[ 16909], 50.00th=[ 24511], 60.00th=[ 36963], | 70.00th=[ 53216], 80.00th=[ 71828], 90.00th=[103285], 95.00th=[131597], | 99.00th=[177210], 99.50th=[204473], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 445, per=26.21%, avg=181.11, stdev=88.38, samples=70 iops : min= 1, max= 27, avg=10.53, stdev= 5.56, samples=70 lat (usec) : 50=1.43%, 100=7.55%, 250=0.26%, 500=0.13% lat (msec) : 2=5.08%, 4=2.99%, 10=7.16%, 20=9.64%, 50=27.34% lat (msec) : 100=27.86%, 250=10.16%, 500=0.39% cpu : usr=0.08%, sys=5.33%, ctx=1459, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158575: Thu Apr 30 14:58:24 2026 read: IOPS=11, BW=177KiB/s (182kB/s)(6256KiB/35292msec) clat (usec): min=35, max=350059, avg=49260.66, stdev=41305.56 lat (usec): min=35, max=350059, avg=49262.26, stdev=41305.50 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 104], | 30.00th=[ 28967], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 54264], | 70.00th=[ 65274], 80.00th=[ 78119], 90.00th=[101188], 95.00th=[120062], | 99.00th=[168821], 99.50th=[214959], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 30, max= 381, per=27.12%, avg=178.16, stdev=72.84, samples=69 iops : min= 1, max= 23, avg=10.36, stdev= 4.62, samples=69 write: IOPS=10, BW=171KiB/s (175kB/s)(6032KiB/35292msec); 0 zone resets clat (usec): min=1433, max=390883, avg=42125.47, stdev=46847.45 lat (usec): min=1435, max=390885, avg=42132.91, stdev=46844.41 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1844], 10.00th=[ 3228], 20.00th=[ 6063], | 30.00th=[ 10028], 40.00th=[ 15533], 50.00th=[ 27132], 60.00th=[ 38011], | 70.00th=[ 55837], 80.00th=[ 76022], 90.00th=[ 96994], 95.00th=[132645], | 99.00th=[233833], 99.50th=[248513], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 31, max= 382, per=25.80%, avg=178.27, stdev=79.24, samples=66 iops : min= 1, max= 23, avg=10.36, stdev= 4.99, samples=66 lat (usec) : 50=1.30%, 100=8.46%, 250=1.04%, 500=0.26% lat (msec) : 2=3.65%, 4=3.12%, 10=8.33%, 20=8.46%, 50=27.60% lat (msec) : 100=27.86%, 250=9.64%, 500=0.26% cpu : usr=0.07%, sys=5.05%, ctx=1438, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158576: Thu Apr 30 14:58:24 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(6032KiB/36424msec) clat (usec): min=35, max=362395, avg=49245.61, stdev=42815.59 lat (usec): min=36, max=362396, avg=49246.97, stdev=42815.60 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 277], | 30.00th=[ 29492], 40.00th=[ 35914], 50.00th=[ 44827], 60.00th=[ 52691], | 70.00th=[ 62653], 80.00th=[ 74974], 90.00th=[102237], 95.00th=[119014], | 99.00th=[185598], 99.50th=[283116], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 27, max= 413, per=25.75%, avg=169.16, stdev=76.85, samples=69 iops : min= 1, max= 25, avg= 9.78, stdev= 4.86, samples=69 write: IOPS=10, BW=172KiB/s (176kB/s)(6256KiB/36424msec); 0 zone resets clat (usec): min=1517, max=416274, avg=44650.79, stdev=52632.82 lat (usec): min=1518, max=416276, avg=44653.77, stdev=52632.20 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1860], 10.00th=[ 2868], 20.00th=[ 5669], | 30.00th=[ 9634], 40.00th=[ 16450], 50.00th=[ 27919], 60.00th=[ 38011], | 70.00th=[ 56886], 80.00th=[ 76022], 90.00th=[107480], 95.00th=[130548], | 99.00th=[240124], 99.50th=[354419], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 30, max= 351, per=25.16%, avg=173.89, stdev=69.12, samples=70 iops : min= 1, max= 21, avg=10.09, stdev= 4.39, samples=70 lat (usec) : 50=0.78%, 100=7.81%, 250=1.17%, 500=0.13%, 750=0.26% lat (msec) : 2=3.52%, 4=4.69%, 10=7.81%, 20=7.55%, 50=27.47% lat (msec) : 100=27.21%, 250=10.94%, 500=0.65% cpu : usr=0.06%, sys=5.21%, ctx=1523, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=658KiB/s (673kB/s), 160KiB/s-177KiB/s (164kB/s-182kB/s), io=23.4MiB (24.5MB), run=35292-36424msec WRITE: bw=692KiB/s (708kB/s), 171KiB/s-182KiB/s (175kB/s-187kB/s), io=24.6MiB (25.8MB), run=35292-36424msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158569: Thu Apr 30 14:59:10 2026 read: IOPS=4, BW=71.4KiB/s (73.2kB/s)(5920KiB/82859msec) clat (msec): min=8, max=400, avg=47.28, stdev=43.45 lat (msec): min=8, max=400, avg=47.28, stdev=43.45 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 58], 90.00th=[ 89], 95.00th=[ 126], | 99.00th=[ 228], 99.50th=[ 338], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 30, max= 255, per=28.85%, avg=82.80, stdev=52.22, samples=141 iops : min= 1, max= 15, avg= 4.39, stdev= 3.32, samples=141 write: IOPS=4, BW=76.9KiB/s (78.7kB/s)(6368KiB/82859msec); 0 zone resets clat (msec): min=51, max=571, avg=163.47, stdev=81.73 lat (msec): min=51, max=571, avg=163.47, stdev=81.73 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 84], 10.00th=[ 93], 20.00th=[ 104], | 30.00th=[ 114], 40.00th=[ 125], 50.00th=[ 138], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 211], 90.00th=[ 275], 95.00th=[ 321], | 99.00th=[ 472], 99.50th=[ 535], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 30, max= 159, per=26.08%, avg=78.77, stdev=35.73, samples=159 iops : min= 1, max= 9, avg= 4.12, stdev= 2.29, samples=159 lat (msec) : 10=0.13%, 20=7.16%, 50=27.99%, 100=17.45%, 250=40.10% lat (msec) : 500=6.77%, 750=0.39% cpu : usr=0.04%, sys=1.37%, ctx=1483, 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=158570: Thu Apr 30 14:59:10 2026 read: IOPS=4, BW=69.0KiB/s (70.7kB/s)(5744KiB/83191msec) clat (msec): min=8, max=457, avg=47.96, stdev=49.67 lat (msec): min=8, max=457, avg=47.96, stdev=49.67 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 49], 80.00th=[ 60], 90.00th=[ 91], 95.00th=[ 124], | 99.00th=[ 253], 99.50th=[ 409], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 382, per=29.12%, avg=83.57, stdev=57.94, samples=134 iops : min= 1, max= 23, avg= 4.42, stdev= 3.68, samples=134 write: IOPS=4, BW=78.7KiB/s (80.6kB/s)(6544KiB/83191msec); 0 zone resets clat (msec): min=53, max=488, avg=160.10, stdev=83.77 lat (msec): min=53, max=488, avg=160.10, stdev=83.77 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 74], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 111], 40.00th=[ 125], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 178], 80.00th=[ 213], 90.00th=[ 279], 95.00th=[ 334], | 99.00th=[ 460], 99.50th=[ 468], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 192, per=26.74%, avg=80.77, stdev=36.02, samples=158 iops : min= 1, max= 12, avg= 4.24, stdev= 2.34, samples=158 lat (msec) : 10=0.78%, 20=8.46%, 50=24.48%, 100=21.48%, 250=37.11% lat (msec) : 500=7.68% cpu : usr=0.04%, sys=1.37%, ctx=1533, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158571: Thu Apr 30 14:59:10 2026 read: IOPS=4, BW=77.6KiB/s (79.4kB/s)(6256KiB/80639msec) clat (msec): min=7, max=405, avg=46.94, stdev=44.80 lat (msec): min=7, max=405, avg=46.94, stdev=44.80 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 60], 90.00th=[ 97], 95.00th=[ 134], | 99.00th=[ 232], 99.50th=[ 262], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 30, max= 287, per=30.75%, avg=88.26, stdev=62.01, samples=140 iops : min= 1, max= 17, avg= 4.71, stdev= 3.92, samples=140 write: IOPS=4, BW=74.8KiB/s (76.6kB/s)(6032KiB/80639msec); 0 zone resets clat (msec): min=59, max=600, avg=164.24, stdev=91.16 lat (msec): min=59, max=600, avg=164.25, stdev=91.15 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 78], 10.00th=[ 84], 20.00th=[ 103], | 30.00th=[ 114], 40.00th=[ 124], 50.00th=[ 138], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 209], 90.00th=[ 279], 95.00th=[ 347], | 99.00th=[ 542], 99.50th=[ 575], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 30, max= 160, per=25.30%, avg=76.41, stdev=36.28, samples=154 iops : min= 1, max= 10, avg= 3.97, stdev= 2.34, samples=154 lat (msec) : 10=0.65%, 20=9.11%, 50=27.73%, 100=18.49%, 250=36.59% lat (msec) : 500=6.64%, 750=0.78% cpu : usr=0.05%, sys=1.33%, ctx=1549, 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=158572: Thu Apr 30 14:59:10 2026 read: IOPS=4, BW=73.1KiB/s (74.8kB/s)(6032KiB/82563msec) clat (msec): min=8, max=452, avg=49.29, stdev=48.43 lat (msec): min=8, max=452, avg=49.29, stdev=48.43 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 41], | 70.00th=[ 47], 80.00th=[ 62], 90.00th=[ 103], 95.00th=[ 146], | 99.00th=[ 236], 99.50th=[ 271], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 30, max= 285, per=30.18%, avg=86.60, stdev=54.98, samples=136 iops : min= 1, max= 17, avg= 4.63, stdev= 3.48, samples=136 write: IOPS=4, BW=75.8KiB/s (77.6kB/s)(6256KiB/82563msec); 0 zone resets clat (msec): min=44, max=490, avg=163.43, stdev=79.57 lat (msec): min=44, max=490, avg=163.43, stdev=79.57 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 78], 10.00th=[ 89], 20.00th=[ 100], | 30.00th=[ 113], 40.00th=[ 127], 50.00th=[ 142], 60.00th=[ 157], | 70.00th=[ 184], 80.00th=[ 211], 90.00th=[ 284], 95.00th=[ 347], | 99.00th=[ 401], 99.50th=[ 426], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 160, per=25.73%, avg=77.69, stdev=35.46, samples=158 iops : min= 1, max= 10, avg= 4.04, stdev= 2.28, samples=158 lat (msec) : 10=0.39%, 20=9.11%, 50=26.30%, 100=18.62%, 250=38.28% lat (msec) : 500=7.29% cpu : usr=0.03%, sys=1.26%, ctx=1445, 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=288KiB/s (295kB/s), 69.0KiB/s-77.6KiB/s (70.7kB/s-79.4kB/s), io=23.4MiB (24.5MB), run=80639-83191msec WRITE: bw=303KiB/s (310kB/s), 74.8KiB/s-78.7KiB/s (76.6kB/s-80.6kB/s), io=24.6MiB (25.8MB), run=80639-83191msec 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=158596: Thu Apr 30 14:59:26 2026 read: IOPS=1, BW=1548KiB/s (1586kB/s)(7168KiB/4629msec) clat (msec): min=111, max=955, avg=343.69, stdev=352.84 lat (msec): min=111, max=955, avg=343.69, stdev=352.84 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 751], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 2039, max= 4345, per=93.52%, avg=3461.33, stdev=1243.80, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1106KiB/s (1133kB/s)(5120KiB/4629msec); 0 zone resets clat (msec): min=344, max=533, avg=439.82, stdev=75.39 lat (msec): min=344, max=533, avg=439.92, stdev=75.35 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 489], 80.00th=[ 489], 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= 1735, max= 2011, per=36.32%, avg=1881.75, stdev=147.80, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=2.74%, ctx=69, 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=158597: Thu Apr 30 14:59:26 2026 read: IOPS=0, BW=370KiB/s (379kB/s)(2048KiB/5533msec) clat (msec): min=157, max=258, avg=208.01, stdev=71.45 lat (msec): min=157, max=258, avg=208.01, stdev=71.45 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 259], 95.00th=[ 259], | 99.00th=[ 259], 99.50th=[ 259], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 1416, max= 2011, per=46.30%, avg=1713.50, stdev=420.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1851KiB/s (1895kB/s)(10.0MiB/5533msec); 0 zone resets clat (msec): min=224, max=1162, avg=499.78, stdev=289.11 lat (msec): min=224, max=1162, avg=500.52, stdev=289.78 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 247], | 30.00th=[ 309], 40.00th=[ 330], 50.00th=[ 430], 60.00th=[ 443], | 70.00th=[ 460], 80.00th=[ 600], 90.00th=[ 793], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1416, max= 3549, per=40.51%, avg=2098.75, stdev=625.47, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=3.56%, ctx=85, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158598: Thu Apr 30 14:59:26 2026 read: IOPS=1, BW=1267KiB/s (1297kB/s)(6144KiB/4849msec) clat (msec): min=201, max=961, avg=411.89, stdev=292.01 lat (msec): min=201, max=961, avg=411.89, stdev=292.01 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 363], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1969, max= 4000, per=67.65%, avg=2503.75, stdev=997.91, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1267KiB/s (1297kB/s)(6144KiB/4849msec); 0 zone resets clat (msec): min=212, max=590, avg=384.32, stdev=162.28 lat (msec): min=212, max=590, avg=384.43, stdev=162.23 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 489], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1735, max= 2985, per=41.17%, avg=2133.25, stdev=583.67, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=2.50%, ctx=65, 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=158599: Thu Apr 30 14:59:26 2026 read: IOPS=0, BW=1010KiB/s (1034kB/s)(5120KiB/5069msec) clat (msec): min=221, max=1162, avg=446.16, stdev=405.69 lat (msec): min=221, max=1162, avg=446.16, stdev=405.69 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 380], 80.00th=[ 380], 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= 1969, max= 3549, per=67.77%, avg=2508.33, stdev=901.44, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1414KiB/s (1448kB/s)(7168KiB/5069msec); 0 zone resets clat (msec): min=214, max=671, avg=393.29, stdev=172.01 lat (msec): min=214, max=671, avg=393.37, stdev=172.00 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 230], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 355], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 531], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1735, max= 4079, per=49.46%, avg=2562.40, stdev=965.95, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=3.02%, ctx=55, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=3701KiB/s (3790kB/s), 370KiB/s-1548KiB/s (379kB/s-1586kB/s), io=20.0MiB (20.0MB), run=4629-5533msec WRITE: bw=5182KiB/s (5306kB/s), 1106KiB/s-1851KiB/s (1133kB/s-1895kB/s), io=28.0MiB (29.4MB), run=4629-5533msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158601: Thu Apr 30 14:59:26 2026 read: IOPS=2, BW=2074KiB/s (2124kB/s)(7168KiB/3456msec) clat (usec): min=492, max=307455, avg=179272.30, stdev=125023.88 lat (usec): min=494, max=307457, avg=179274.06, stdev=125024.21 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[ 523], | 30.00th=[225444], 40.00th=[225444], 50.00th=[235930], 60.00th=[235930], | 70.00th=[235930], 80.00th=[250610], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1882, max= 4000, per=75.59%, avg=2899.50, stdev=1113.88, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1481KiB/s (1517kB/s)(5120KiB/3456msec); 0 zone resets clat (msec): min=226, max=554, avg=438.12, stdev=134.80 lat (msec): min=226, max=554, avg=438.17, stdev=134.80 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1882, max= 2027, per=36.88%, avg=1981.00, stdev=66.92, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=25.00% cpu : usr=0.03%, sys=9.38%, ctx=130, 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=158602: Thu Apr 30 14:59:26 2026 read: IOPS=0, BW=384KiB/s (393kB/s)(2048KiB/5338msec) clat (msec): min=221, max=424, avg=323.00, stdev=143.42 lat (msec): min=221, max=424, avg=323.00, stdev=143.42 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 222], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 1818, max= 1882, per=48.23%, avg=1850.00, stdev=45.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1918KiB/s (1964kB/s)(10.0MiB/5338msec); 0 zone resets clat (msec): min=239, max=964, avg=468.50, stdev=240.20 lat (msec): min=239, max=964, avg=468.60, stdev=240.18 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 249], | 30.00th=[ 292], 40.00th=[ 334], 50.00th=[ 372], 60.00th=[ 426], | 70.00th=[ 439], 80.00th=[ 592], 90.00th=[ 776], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1818, max= 4055, per=47.67%, avg=2560.43, stdev=994.48, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=9.89%, ctx=123, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158603: Thu Apr 30 14:59:26 2026 read: IOPS=1, BW=1961KiB/s (2008kB/s)(6144KiB/3133msec) clat (usec): min=374, max=447174, avg=140163.11, stdev=217132.24 lat (usec): min=375, max=447176, avg=140163.96, stdev=217132.40 clat percentiles (usec): | 1.00th=[ 375], 5.00th=[ 375], 10.00th=[ 375], 20.00th=[ 453], | 30.00th=[ 453], 40.00th=[ 465], 50.00th=[ 465], 60.00th=[ 545], | 70.00th=[392168], 80.00th=[392168], 90.00th=[446694], 95.00th=[446694], | 99.00th=[446694], 99.50th=[446694], 99.90th=[446694], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 1882, max= 4055, per=86.35%, avg=3312.33, stdev=1239.01, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1961KiB/s (2008kB/s)(6144KiB/3133msec); 0 zone resets clat (msec): min=220, max=618, avg=381.51, stdev=173.74 lat (msec): min=221, max=618, avg=381.70, stdev=173.85 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 355], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2000, max= 4055, per=60.94%, avg=3273.00, stdev=1112.01, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 500=25.00%, 750=8.33% lat (msec) : 250=16.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=10.41%, ctx=125, 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=158604: Thu Apr 30 14:59:26 2026 read: IOPS=0, BW=972KiB/s (995kB/s)(5120KiB/5268msec) clat (usec): min=497, max=657223, avg=289929.65, stdev=287083.69 lat (usec): min=499, max=657224, avg=289931.02, stdev=287083.09 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 635], 40.00th=[ 635], 50.00th=[346031], 60.00th=[346031], | 70.00th=[446694], 80.00th=[446694], 90.00th=[658506], 95.00th=[658506], | 99.00th=[658506], 99.50th=[658506], 99.90th=[658506], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 3764, max= 4087, per=100.00%, avg=3925.50, stdev=228.40, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1361KiB/s (1393kB/s)(7168KiB/5268msec); 0 zone resets clat (msec): min=383, max=674, avg=543.42, stdev=116.34 lat (msec): min=383, max=675, avg=543.58, stdev=116.33 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 405], | 30.00th=[ 527], 40.00th=[ 527], 50.00th=[ 542], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 667], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1984, max= 2043, per=37.52%, avg=2015.43, stdev=22.04, samples=7 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=7 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 500=33.33%, 750=50.00% cpu : usr=0.00%, sys=8.16%, ctx=118, 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=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=3837KiB/s (3929kB/s), 384KiB/s-2074KiB/s (393kB/s-2124kB/s), io=20.0MiB (20.0MB), run=3133-5338msec WRITE: bw=5371KiB/s (5500kB/s), 1361KiB/s-1961KiB/s (1393kB/s-2008kB/s), io=28.0MiB (29.4MB), run=3133-5338msec 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=158611: Thu Apr 30 14:59:49 2026 read: IOPS=0, BW=1805KiB/s (1848kB/s)(12.0MiB/6809msec) clat (msec): min=1000, max=4422, avg=2217.42, stdev=1913.04 lat (msec): min=1000, max=4422, avg=2217.42, stdev=1913.05 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 7728, max= 8094, per=100.00%, avg=7911.00, stdev=258.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=7.12%, ctx=693, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158612: Thu Apr 30 14:59:49 2026 read: IOPS=0, BW=550KiB/s (563kB/s)(4096KiB/7448msec) clat (nsec): min=4415.0M, max=4415.0M, avg=4415987794.00, stdev= 0.00 lat (nsec): min=4415.0M, max=4415.0M, avg=4415989836.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4396], 5.00th=[ 4396], 10.00th=[ 4396], 20.00th=[ 4396], | 30.00th=[ 4396], 40.00th=[ 4396], 50.00th=[ 4396], 60.00th=[ 4396], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 7728, max= 7728, per=100.00%, avg=7728.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1100KiB/s (1126kB/s)(8192KiB/7448msec); 0 zone resets clat (msec): min=893, max=2003, avg=1448.37, stdev=784.60 lat (msec): min=893, max=2003, avg=1448.74, stdev=784.88 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 2005], | 70.00th=[ 2005], 80.00th=[ 2005], 90.00th=[ 2005], 95.00th=[ 2005], | 99.00th=[ 2005], 99.50th=[ 2005], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=2.01%, ctx=100, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158613: Thu Apr 30 14:59:49 2026 write: IOPS=0, BW=1705KiB/s (1746kB/s)(12.0MiB/7205msec); 0 zone resets clat (msec): min=1408, max=4036, avg=2368.34, stdev=1450.27 lat (msec): min=1409, max=4036, avg=2369.06, stdev=1449.84 clat percentiles (msec): | 1.00th=[ 1401], 5.00th=[ 1401], 10.00th=[ 1401], 20.00th=[ 1401], | 30.00th=[ 1401], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] bw ( KiB/s): min= 7728, max= 7922, per=100.00%, avg=7825.00, stdev=137.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.58%, ctx=113, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158614: Thu Apr 30 14:59:49 2026 write: IOPS=0, BW=1892KiB/s (1938kB/s)(12.0MiB/6493msec); 0 zone resets clat (msec): min=644, max=3890, avg=2153.59, stdev=1635.19 lat (msec): min=644, max=3891, avg=2154.18, stdev=1635.20 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 1921], 50.00th=[ 1921], 60.00th=[ 1921], | 70.00th=[ 3876], 80.00th=[ 3876], 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= 7728, max= 8175, per=100.00%, avg=7951.50, stdev=316.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.71%, ctx=54, 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=2200KiB/s (2253kB/s), 550KiB/s-1805KiB/s (563kB/s-1848kB/s), io=16.0MiB (16.8MB), run=6809-7448msec WRITE: bw=4400KiB/s (4505kB/s), 1100KiB/s-1892KiB/s (1126kB/s-1938kB/s), io=32.0MiB (33.6MB), run=6493-7448msec rand-rw: (groupid=0, jobs=1): err= 0: pid=158617: Thu Apr 30 14:59:50 2026 read: IOPS=0, BW=1887KiB/s (1933kB/s)(12.0MiB/6511msec) clat (msec): min=956, max=3787, avg=2169.86, stdev=1458.56 lat (msec): min=956, max=3787, avg=2169.86, stdev=1458.56 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 1770], 50.00th=[ 1770], 60.00th=[ 1770], | 70.00th=[ 3775], 80.00th=[ 3775], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.51%, ctx=42, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158618: Thu Apr 30 14:59:50 2026 read: IOPS=0, BW=570KiB/s (584kB/s)(4096KiB/7187msec) clat (nsec): min=4303.3M, max=4303.3M, avg=4303323409.00, stdev= 0.00 lat (nsec): min=4303.3M, max=4303.3M, avg=4303325594.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4329], 5.00th=[ 4329], 10.00th=[ 4329], 20.00th=[ 4329], | 30.00th=[ 4329], 40.00th=[ 4329], 50.00th=[ 4329], 60.00th=[ 4329], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1140KiB/s (1167kB/s)(8192KiB/7187msec); 0 zone resets clat (msec): min=593, max=2286, avg=1439.83, stdev=1197.56 lat (msec): min=593, max=2286, avg=1440.09, stdev=1197.63 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 2299], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=0.95%, ctx=74, 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=158619: Thu Apr 30 14:59:50 2026 write: IOPS=0, BW=1716KiB/s (1758kB/s)(12.0MiB/7159msec); 0 zone resets clat (msec): min=393, max=4864, avg=2385.46, stdev=2275.32 lat (msec): min=393, max=4865, avg=2385.82, stdev=2275.30 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 1905], 50.00th=[ 1905], 60.00th=[ 1905], | 70.00th=[ 4866], 80.00th=[ 4866], 90.00th=[ 4866], 95.00th=[ 4866], | 99.00th=[ 4866], 99.50th=[ 4866], 99.90th=[ 4866], 99.95th=[ 4866], | 99.99th=[ 4866] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.01%, sys=1.38%, ctx=41, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158620: Thu Apr 30 14:59:50 2026 write: IOPS=0, BW=1874KiB/s (1919kB/s)(12.0MiB/6557msec); 0 zone resets clat (msec): min=396, max=3918, avg=2183.71, stdev=1761.53 lat (msec): min=396, max=3918, avg=2184.20, stdev=1761.72 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 2232], 50.00th=[ 2232], 60.00th=[ 2232], | 70.00th=[ 3910], 80.00th=[ 3910], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.57%, ctx=38, 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=2280KiB/s (2334kB/s), 570KiB/s-1887KiB/s (584kB/s-1933kB/s), io=16.0MiB (16.8MB), run=6511-7187msec WRITE: bw=4559KiB/s (4669kB/s), 1140KiB/s-1874KiB/s (1167kB/s-1919kB/s), io=32.0MiB (33.6MB), run=6557-7187msec