== sanity test 398b: DIO and buffer IO race ============== 12:32:20 (1785083540) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.56253 s, 6.7 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=150402: Sun Jul 26 12:35:13 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(5992KiB/150170msec) clat (usec): min=36, max=324834, avg=53368.58, stdev=36676.61 lat (usec): min=36, max=324836, avg=53372.19, stdev=36680.24 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 8717], 10.00th=[ 18482], 20.00th=[ 26870], | 30.00th=[ 32637], 40.00th=[ 39584], 50.00th=[ 45876], 60.00th=[ 53216], | 70.00th=[ 62129], 80.00th=[ 74974], 90.00th=[ 98042], 95.00th=[121111], | 99.00th=[187696], 99.50th=[212861], 99.90th=[291505], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 94, per=25.20%, avg=39.81, stdev=17.93, samples=293 iops : min= 1, max= 23, avg= 9.31, stdev= 4.52, samples=293 write: IOPS=10, BW=41.9KiB/s (42.9kB/s)(6296KiB/150170msec); 0 zone resets clat (usec): min=818, max=967525, avg=44339.71, stdev=52385.31 lat (usec): min=820, max=967528, avg=44342.31, stdev=52384.78 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1614], 20.00th=[ 5211], | 30.00th=[ 10159], 40.00th=[ 19792], 50.00th=[ 29754], 60.00th=[ 41157], | 70.00th=[ 55313], 80.00th=[ 76022], 90.00th=[108528], 95.00th=[135267], | 99.00th=[208667], 99.50th=[235930], 99.90th=[471860], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 127, per=25.29%, avg=41.72, stdev=20.62, samples=294 iops : min= 1, max= 31, avg= 9.79, stdev= 5.19, samples=294 lat (usec) : 50=0.46%, 100=1.60%, 250=0.23%, 500=0.07%, 1000=0.07% lat (msec) : 2=6.12%, 4=2.60%, 10=6.71%, 20=8.27%, 50=34.96% lat (msec) : 100=28.35%, 250=10.25%, 500=0.29%, 1000=0.03% cpu : usr=0.08%, sys=4.73%, ctx=6415, 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=150403: Sun Jul 26 12:35:13 2026 read: IOPS=9, BW=39.5KiB/s (40.5kB/s)(5940KiB/150293msec) clat (usec): min=37, max=272768, avg=57007.61, stdev=37234.60 lat (usec): min=38, max=272770, avg=57013.50, stdev=37233.80 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 15533], 10.00th=[ 21103], 20.00th=[ 28967], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 47449], 60.00th=[ 56361], | 70.00th=[ 68682], 80.00th=[ 82314], 90.00th=[104334], 95.00th=[127402], | 99.00th=[183501], 99.50th=[214959], 99.90th=[267387], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 5, max= 102, per=24.87%, avg=39.30, stdev=16.90, samples=294 iops : min= 1, max= 25, avg= 9.18, stdev= 4.24, samples=294 write: IOPS=10, BW=42.2KiB/s (43.3kB/s)(6348KiB/150293msec); 0 zone resets clat (usec): min=934, max=1015.2k, avg=41060.08, stdev=49859.12 lat (usec): min=935, max=1015.2k, avg=41065.10, stdev=49858.56 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1663], | 20.00th=[ 4080], 30.00th=[ 8848], 40.00th=[ 16909], | 50.00th=[ 27132], 60.00th=[ 38011], 70.00th=[ 51119], | 80.00th=[ 69731], 90.00th=[ 102237], 95.00th=[ 128451], | 99.00th=[ 198181], 99.50th=[ 225444], 99.90th=[ 312476], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 95, per=25.56%, avg=42.17, stdev=20.93, samples=293 iops : min= 1, max= 23, avg= 9.90, stdev= 5.27, samples=293 lat (usec) : 50=0.29%, 100=1.17%, 250=0.10%, 500=0.07%, 1000=0.03% lat (msec) : 2=6.05%, 4=4.04%, 10=6.64%, 20=7.85%, 50=34.90% lat (msec) : 100=28.09%, 250=10.55%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=4.82%, ctx=6481, 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=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=150404: Sun Jul 26 12:35:13 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(6028KiB/151576msec) clat (usec): min=36, max=1012.6k, avg=55747.48, stdev=46320.59 lat (usec): min=36, max=1012.6k, avg=55750.83, stdev=46320.71 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 12518], 10.00th=[ 18744], | 20.00th=[ 25822], 30.00th=[ 31851], 40.00th=[ 38536], | 50.00th=[ 45876], 60.00th=[ 54789], 70.00th=[ 66323], | 80.00th=[ 80217], 90.00th=[ 101188], 95.00th=[ 129500], | 99.00th=[ 210764], 99.50th=[ 248513], 99.90th=[ 278922], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 7, max= 119, per=24.89%, avg=39.32, stdev=19.27, samples=296 iops : min= 1, max= 29, avg= 9.19, stdev= 4.85, samples=296 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6260KiB/151576msec); 0 zone resets clat (usec): min=898, max=452270, avg=42868.49, stdev=46939.91 lat (usec): min=900, max=452273, avg=42872.64, stdev=46938.32 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1565], 20.00th=[ 4555], | 30.00th=[ 9634], 40.00th=[ 17957], 50.00th=[ 28705], 60.00th=[ 40109], | 70.00th=[ 53216], 80.00th=[ 73925], 90.00th=[104334], 95.00th=[139461], | 99.00th=[206570], 99.50th=[235930], 99.90th=[308282], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 116, per=25.02%, avg=41.28, stdev=20.85, samples=293 iops : min= 1, max= 29, avg= 9.67, stdev= 5.25, samples=293 lat (usec) : 50=0.26%, 100=1.37%, 250=0.07%, 500=0.03%, 1000=0.03% lat (msec) : 2=6.51%, 4=2.93%, 10=6.32%, 20=9.80%, 50=34.41% lat (msec) : 100=27.38%, 250=10.58%, 500=0.29%, 2000=0.03% cpu : usr=0.07%, sys=4.72%, ctx=6447, 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=150405: Sun Jul 26 12:35:13 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6052KiB/148709msec) clat (usec): min=24, max=333624, avg=54839.93, stdev=37310.75 lat (usec): min=24, max=333626, avg=54843.64, stdev=37310.05 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 141], 10.00th=[ 19268], 20.00th=[ 25822], | 30.00th=[ 32637], 40.00th=[ 39584], 50.00th=[ 47973], 60.00th=[ 56361], | 70.00th=[ 66847], 80.00th=[ 80217], 90.00th=[100140], 95.00th=[120062], | 99.00th=[175113], 99.50th=[223347], 99.90th=[295699], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 111, per=25.80%, avg=40.76, stdev=16.93, samples=289 iops : min= 1, max= 27, avg= 9.54, stdev= 4.26, samples=289 write: IOPS=10, BW=41.9KiB/s (42.9kB/s)(6236KiB/148709msec); 0 zone resets clat (usec): min=873, max=1032.7k, avg=41859.38, stdev=50685.51 lat (usec): min=874, max=1032.7k, avg=41863.72, stdev=50687.82 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1663], | 20.00th=[ 4293], 30.00th=[ 7767], 40.00th=[ 16450], | 50.00th=[ 28705], 60.00th=[ 39060], 70.00th=[ 53216], | 80.00th=[ 72877], 90.00th=[ 102237], 95.00th=[ 129500], | 99.00th=[ 187696], 99.50th=[ 208667], 99.90th=[ 358613], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 7, max= 120, per=25.18%, avg=41.54, stdev=20.29, samples=292 iops : min= 1, max= 30, avg= 9.74, stdev= 5.12, samples=292 lat (usec) : 50=0.33%, 100=2.08%, 250=0.07%, 750=0.03%, 1000=0.10% lat (msec) : 2=5.73%, 4=3.81%, 10=7.13%, 20=7.62%, 50=33.66% lat (msec) : 100=29.20%, 250=9.96%, 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=4.53%, ctx=6321, 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=158KiB/s (162kB/s), 39.5KiB/s-40.7KiB/s (40.5kB/s-41.7kB/s), io=23.4MiB (24.6MB), run=148709-151576msec WRITE: bw=166KiB/s (170kB/s), 41.3KiB/s-42.2KiB/s (42.3kB/s-43.3kB/s), io=24.6MiB (25.7MB), run=148709-151576msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150407: Sun Jul 26 12:35:59 2026 read: IOPS=7, BW=30.5KiB/s (31.3kB/s)(5992KiB/196160msec) clat (msec): min=5, max=1007, avg=50.80, stdev=54.04 lat (msec): min=5, max=1007, avg=50.80, stdev=54.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 52], 80.00th=[ 73], 90.00th=[ 112], 95.00th=[ 159], | 99.00th=[ 239], 99.50th=[ 259], 99.90th=[ 355], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 127, per=26.22%, avg=31.72, stdev=23.53, samples=366 iops : min= 1, max= 31, avg= 7.26, stdev= 5.92, samples=366 write: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6296KiB/196160msec); 0 zone resets clat (msec): min=11, max=545, avg=76.01, stdev=58.99 lat (msec): min=11, max=545, avg=76.01, stdev=58.99 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 68], | 70.00th=[ 87], 80.00th=[ 110], 90.00th=[ 157], 95.00th=[ 194], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 502], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 127, per=25.67%, avg=32.60, stdev=22.28, samples=374 iops : min= 1, max= 31, avg= 7.47, stdev= 5.61, samples=374 lat (msec) : 10=1.40%, 20=11.85%, 50=43.82%, 100=24.41%, 250=17.35% lat (msec) : 500=1.07%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.78%, ctx=4893, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150408: Sun Jul 26 12:35:59 2026 read: IOPS=7, BW=30.1KiB/s (30.8kB/s)(5940KiB/197179msec) clat (msec): min=5, max=1053, avg=51.12, stdev=58.64 lat (msec): min=5, max=1053, avg=51.13, stdev=58.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 73], 90.00th=[ 118], 95.00th=[ 163], | 99.00th=[ 247], 99.50th=[ 292], 99.90th=[ 518], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 119, per=26.46%, avg=32.01, stdev=23.95, samples=359 iops : min= 1, max= 29, avg= 7.33, stdev= 6.01, samples=359 write: IOPS=8, BW=32.2KiB/s (32.0kB/s)(6348KiB/197179msec); 0 zone resets clat (msec): min=13, max=477, avg=76.21, stdev=59.68 lat (msec): min=13, max=477, avg=76.22, stdev=59.68 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 66], | 70.00th=[ 88], 80.00th=[ 118], 90.00th=[ 159], 95.00th=[ 190], | 99.00th=[ 292], 99.50th=[ 338], 99.90th=[ 393], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 151, per=25.60%, avg=32.51, stdev=23.27, samples=378 iops : min= 1, max= 37, avg= 7.45, stdev= 5.86, samples=378 lat (msec) : 10=1.86%, 20=13.12%, 50=42.64%, 100=22.56%, 250=18.33% lat (msec) : 500=1.43%, 750=0.03%, 2000=0.03% cpu : usr=0.06%, sys=1.87%, ctx=5239, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150409: Sun Jul 26 12:35:59 2026 read: IOPS=7, BW=30.8KiB/s (31.6kB/s)(6028KiB/195629msec) clat (msec): min=6, max=344, avg=51.32, stdev=49.61 lat (msec): min=6, max=344, avg=51.32, stdev=49.61 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 53], 80.00th=[ 79], 90.00th=[ 116], 95.00th=[ 157], | 99.00th=[ 236], 99.50th=[ 266], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 126, per=26.31%, avg=31.84, stdev=22.74, samples=367 iops : min= 1, max= 31, avg= 7.28, stdev= 5.73, samples=367 write: IOPS=7, BW=31.0KiB/s (32.8kB/s)(6260KiB/195629msec); 0 zone resets clat (msec): min=12, max=943, avg=75.27, stdev=62.37 lat (msec): min=12, max=943, avg=75.28, stdev=62.37 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 67], | 70.00th=[ 86], 80.00th=[ 110], 90.00th=[ 148], 95.00th=[ 188], | 99.00th=[ 284], 99.50th=[ 388], 99.90th=[ 567], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 103, per=25.46%, avg=32.33, stdev=22.09, samples=375 iops : min= 1, max= 25, avg= 7.41, stdev= 5.57, samples=375 lat (msec) : 10=1.17%, 20=12.70%, 50=43.36%, 100=23.89%, 250=17.68% lat (msec) : 500=1.07%, 750=0.10%, 1000=0.03% cpu : usr=0.06%, sys=1.78%, ctx=4893, 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=150410: Sun Jul 26 12:35:59 2026 read: IOPS=7, BW=31.1KiB/s (31.8kB/s)(6052KiB/194902msec) clat (msec): min=4, max=513, avg=51.49, stdev=50.57 lat (msec): min=4, max=513, avg=51.49, stdev=50.57 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 41], | 70.00th=[ 55], 80.00th=[ 78], 90.00th=[ 117], 95.00th=[ 150], | 99.00th=[ 234], 99.50th=[ 279], 99.90th=[ 447], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 143, per=26.34%, avg=31.87, stdev=23.16, samples=367 iops : min= 1, max= 35, avg= 7.29, stdev= 5.82, samples=367 write: IOPS=7, BW=31.0KiB/s (32.8kB/s)(6236KiB/194902msec); 0 zone resets clat (msec): min=10, max=921, avg=74.80, stdev=60.07 lat (msec): min=10, max=921, avg=74.80, stdev=60.07 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 111], 90.00th=[ 146], 95.00th=[ 182], | 99.00th=[ 296], 99.50th=[ 342], 99.90th=[ 523], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 103, per=25.35%, avg=32.19, stdev=21.76, samples=374 iops : min= 1, max= 25, avg= 7.37, stdev= 5.48, samples=374 lat (msec) : 10=1.14%, 20=12.27%, 50=42.64%, 100=25.13%, 250=17.51% lat (msec) : 500=1.20%, 750=0.07%, 1000=0.03% cpu : usr=0.06%, sys=1.84%, ctx=4942, 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=122KiB/s (125kB/s), 30.1KiB/s-31.1KiB/s (30.8kB/s-31.8kB/s), io=23.4MiB (24.6MB), run=194902-197179msec WRITE: bw=127KiB/s (131kB/s), 31.0KiB/s-32.2KiB/s (32.8kB/s-32.0kB/s), io=24.6MiB (25.7MB), run=194902-197179msec 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=150456: Sun Jul 26 12:36:41 2026 read: IOPS=12, BW=194KiB/s (198kB/s)(5920KiB/30575msec) clat (usec): min=39, max=241391, avg=44648.93, stdev=30430.95 lat (usec): min=39, max=241393, avg=44651.14, stdev=30431.51 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 93], 20.00th=[ 23200], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 64226], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[168821], 99.50th=[191890], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 63, max= 348, per=26.73%, avg=194.08, stdev=59.49, samples=60 iops : min= 3, max= 21, avg=11.35, stdev= 3.78, samples=60 write: IOPS=13, BW=208KiB/s (213kB/s)(6368KiB/30575msec); 0 zone resets clat (usec): min=1236, max=189913, avg=35179.87, stdev=36098.19 lat (usec): min=1238, max=189915, avg=35185.89, stdev=36096.19 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 2147], 10.00th=[ 3326], 20.00th=[ 5866], | 30.00th=[ 8586], 40.00th=[ 14877], 50.00th=[ 23462], 60.00th=[ 32637], | 70.00th=[ 44827], 80.00th=[ 62129], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[154141], 99.50th=[183501], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 474, per=27.29%, avg=208.47, stdev=87.34, samples=60 iops : min= 1, max= 29, avg=12.27, stdev= 5.52, samples=60 lat (usec) : 50=0.39%, 100=4.43%, 250=0.13%, 500=0.13% lat (msec) : 2=2.21%, 4=4.17%, 10=10.94%, 20=7.94%, 50=39.19% lat (msec) : 100=25.13%, 250=5.34% cpu : usr=0.07%, sys=6.27%, ctx=1694, 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=150457: Sun Jul 26 12:36:41 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(5744KiB/32444msec) clat (usec): min=37, max=271070, avg=47411.05, stdev=33716.44 lat (usec): min=37, max=271071, avg=47417.28, stdev=33718.95 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 79], 20.00th=[ 23725], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 68682], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[154141], 99.50th=[214959], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 381, per=24.35%, avg=176.78, stdev=70.15, samples=63 iops : min= 1, max= 23, avg=10.25, stdev= 4.43, samples=63 write: IOPS=12, BW=202KiB/s (207kB/s)(6544KiB/32444msec); 0 zone resets clat (usec): min=1623, max=178404, avg=37284.14, stdev=34661.89 lat (usec): min=1624, max=178406, avg=37287.00, stdev=34661.15 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2008], 10.00th=[ 2868], 20.00th=[ 6194], | 30.00th=[ 11076], 40.00th=[ 17171], 50.00th=[ 28181], 60.00th=[ 38011], | 70.00th=[ 48497], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[103285], | 99.00th=[147850], 99.50th=[162530], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 63, max= 374, per=26.26%, avg=200.62, stdev=81.19, samples=63 iops : min= 3, max= 23, avg=11.78, stdev= 5.13, samples=63 lat (usec) : 50=0.26%, 100=4.56%, 250=0.26%, 500=0.26% lat (msec) : 2=2.60%, 4=4.30%, 10=8.20%, 20=9.38%, 50=35.81% lat (msec) : 100=29.04%, 250=5.21%, 500=0.13% cpu : usr=0.06%, sys=5.98%, ctx=1670, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150458: Sun Jul 26 12:36:41 2026 read: IOPS=11, BW=190KiB/s (194kB/s)(6256KiB/32981msec) clat (usec): min=34, max=221164, avg=49483.88, stdev=34657.40 lat (usec): min=35, max=221165, avg=49485.36, stdev=34657.96 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 67], 10.00th=[ 212], 20.00th=[ 26084], | 30.00th=[ 34341], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 51643], | 70.00th=[ 60031], 80.00th=[ 68682], 90.00th=[ 84411], 95.00th=[111674], | 99.00th=[173016], 99.50th=[219153], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 61, max= 320, per=25.95%, avg=188.39, stdev=62.14, samples=64 iops : min= 3, max= 20, avg=11.00, stdev= 3.97, samples=64 write: IOPS=11, BW=183KiB/s (187kB/s)(6032KiB/32981msec); 0 zone resets clat (usec): min=1146, max=250931, avg=35741.27, stdev=38095.26 lat (usec): min=1148, max=250933, avg=35747.20, stdev=38093.82 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2024], 10.00th=[ 2868], 20.00th=[ 5800], | 30.00th=[ 9372], 40.00th=[ 14222], 50.00th=[ 23725], 60.00th=[ 31065], | 70.00th=[ 44303], 80.00th=[ 61080], 90.00th=[ 83362], 95.00th=[111674], | 99.00th=[175113], 99.50th=[204473], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 31, max= 382, per=23.45%, avg=179.13, stdev=95.32, samples=64 iops : min= 1, max= 23, avg=10.42, stdev= 6.07, samples=64 lat (usec) : 50=0.91%, 100=3.65%, 250=0.65%, 500=0.13% lat (msec) : 2=2.34%, 4=4.04%, 10=9.51%, 20=8.33%, 50=36.46% lat (msec) : 100=27.08%, 250=6.77%, 500=0.13% cpu : usr=0.06%, sys=5.78%, ctx=1710, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150459: Sun Jul 26 12:36:41 2026 read: IOPS=11, BW=189KiB/s (193kB/s)(6032KiB/31970msec) clat (usec): min=43, max=171662, avg=46204.74, stdev=31567.31 lat (usec): min=43, max=171663, avg=46207.40, stdev=31566.63 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 99], 20.00th=[ 22152], | 30.00th=[ 28967], 40.00th=[ 35914], 50.00th=[ 43254], 60.00th=[ 51119], | 70.00th=[ 58983], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[154141], 99.50th=[168821], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 63, max= 349, per=25.82%, avg=187.47, stdev=67.59, samples=62 iops : min= 3, max= 21, avg=10.94, stdev= 4.28, samples=62 write: IOPS=12, BW=196KiB/s (200kB/s)(6256KiB/31970msec); 0 zone resets clat (usec): min=1424, max=246036, avg=36735.62, stdev=36595.97 lat (usec): min=1427, max=246038, avg=36737.67, stdev=36595.97 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2008], 10.00th=[ 3326], 20.00th=[ 6325], | 30.00th=[ 9765], 40.00th=[ 18482], 50.00th=[ 27919], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 61080], 90.00th=[ 84411], 95.00th=[ 96994], | 99.00th=[179307], 99.50th=[244319], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 62, max= 406, per=26.07%, avg=199.15, stdev=73.85, samples=61 iops : min= 3, max= 25, avg=11.67, stdev= 4.67, samples=61 lat (usec) : 50=0.65%, 100=4.30%, 250=1.04% lat (msec) : 2=2.47%, 4=3.52%, 10=9.64%, 20=7.81%, 50=36.33% lat (msec) : 100=29.43%, 250=4.82% cpu : usr=0.08%, sys=5.89%, ctx=1660, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=726KiB/s (744kB/s), 177KiB/s-194KiB/s (181kB/s-198kB/s), io=23.4MiB (24.5MB), run=30575-32981msec WRITE: bw=764KiB/s (782kB/s), 183KiB/s-208KiB/s (187kB/s-213kB/s), io=24.6MiB (25.8MB), run=30575-32981msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150461: Sun Jul 26 12:36:55 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5920KiB/45842msec) clat (msec): min=6, max=302, avg=50.62, stdev=40.25 lat (msec): min=6, max=302, avg=50.62, stdev=40.25 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 39], 60.00th=[ 44], | 70.00th=[ 53], 80.00th=[ 68], 90.00th=[ 107], 95.00th=[ 136], | 99.00th=[ 218], 99.50th=[ 249], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 416, per=25.34%, avg=128.73, stdev=77.18, samples=90 iops : min= 1, max= 26, avg= 7.22, stdev= 4.95, samples=90 write: IOPS=8, BW=139KiB/s (142kB/s)(6368KiB/45842msec); 0 zone resets clat (msec): min=15, max=318, avg=68.02, stdev=44.28 lat (msec): min=15, max=318, avg=68.02, stdev=44.28 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 130], 95.00th=[ 153], | 99.00th=[ 247], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 21, max= 351, per=26.05%, avg=139.12, stdev=78.45, samples=90 iops : min= 1, max= 21, avg= 7.88, stdev= 4.92, samples=90 lat (msec) : 10=0.65%, 20=7.68%, 50=47.01%, 100=29.30%, 250=14.84% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.10%, ctx=1252, 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=150462: Sun Jul 26 12:36:55 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5744KiB/45896msec) clat (msec): min=9, max=228, avg=51.53, stdev=39.23 lat (msec): min=9, max=228, avg=51.53, stdev=39.23 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 33], 50.00th=[ 39], 60.00th=[ 45], | 70.00th=[ 55], 80.00th=[ 74], 90.00th=[ 107], 95.00th=[ 140], | 99.00th=[ 194], 99.50th=[ 215], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 21, max= 376, per=25.82%, avg=131.17, stdev=75.88, samples=86 iops : min= 1, max= 23, avg= 7.38, stdev= 4.77, samples=86 write: IOPS=8, BW=143KiB/s (146kB/s)(6544KiB/45896msec); 0 zone resets clat (msec): min=14, max=255, avg=66.87, stdev=42.63 lat (msec): min=14, max=255, avg=66.87, stdev=42.63 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 53], 60.00th=[ 64], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 126], 95.00th=[ 159], | 99.00th=[ 209], 99.50th=[ 243], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 415, per=26.99%, avg=144.11, stdev=79.66, samples=89 iops : min= 1, max= 25, avg= 8.19, stdev= 5.02, samples=89 lat (msec) : 10=0.13%, 20=7.42%, 50=47.14%, 100=30.99%, 250=14.19% lat (msec) : 500=0.13% cpu : usr=0.03%, sys=2.18%, ctx=1353, 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=150463: Sun Jul 26 12:36:55 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6256KiB/46716msec) clat (msec): min=7, max=293, avg=50.97, stdev=43.51 lat (msec): min=7, max=293, avg=50.97, stdev=43.51 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 28], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 72], 90.00th=[ 104], 95.00th=[ 146], | 99.00th=[ 220], 99.50th=[ 257], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 29, max= 510, per=27.00%, avg=137.16, stdev=95.73, samples=90 iops : min= 1, max= 31, avg= 7.76, stdev= 6.07, samples=90 write: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46716msec); 0 zone resets clat (msec): min=14, max=333, avg=70.92, stdev=47.05 lat (msec): min=14, max=333, avg=70.92, stdev=47.05 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 82], 80.00th=[ 99], 90.00th=[ 132], 95.00th=[ 167], | 99.00th=[ 241], 99.50th=[ 279], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 351, per=24.31%, avg=129.82, stdev=70.68, samples=91 iops : min= 1, max= 21, avg= 7.30, stdev= 4.42, samples=91 lat (msec) : 10=1.04%, 20=8.85%, 50=44.92%, 100=29.82%, 250=14.71% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=2.05%, ctx=1326, 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= 0: pid=150464: Sun Jul 26 12:36:55 2026 read: IOPS=8, BW=128KiB/s (131kB/s)(6032KiB/47103msec) clat (msec): min=6, max=259, avg=52.39, stdev=42.94 lat (msec): min=6, max=259, avg=52.39, stdev=42.94 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 39], 60.00th=[ 46], | 70.00th=[ 55], 80.00th=[ 70], 90.00th=[ 114], 95.00th=[ 150], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 383, per=25.57%, avg=129.90, stdev=79.41, samples=89 iops : min= 1, max= 23, avg= 7.30, stdev= 5.05, samples=89 write: IOPS=8, BW=133KiB/s (136kB/s)(6256KiB/47103msec); 0 zone resets clat (msec): min=16, max=342, avg=69.82, stdev=46.81 lat (msec): min=16, max=342, avg=69.83, stdev=46.81 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 105], 90.00th=[ 138], 95.00th=[ 163], | 99.00th=[ 228], 99.50th=[ 268], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 383, per=24.51%, avg=130.87, stdev=79.88, samples=92 iops : min= 1, max= 23, avg= 7.36, stdev= 5.04, samples=92 lat (msec) : 10=0.52%, 20=9.64%, 50=44.01%, 100=28.91%, 250=16.54% lat (msec) : 500=0.39% cpu : usr=0.03%, sys=2.14%, ctx=1397, 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=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=509KiB/s (521kB/s), 125KiB/s-134KiB/s (128kB/s-137kB/s), io=23.4MiB (24.5MB), run=45842-47103msec WRITE: bw=535KiB/s (548kB/s), 129KiB/s-143KiB/s (132kB/s-146kB/s), io=24.6MiB (25.8MB), run=45842-47103msec 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=150478: Sun Jul 26 12:37:10 2026 read: IOPS=2, BW=2353KiB/s (2410kB/s)(7168KiB/3046msec) clat (msec): min=57, max=245, avg=196.55, stdev=66.62 lat (msec): min=57, max=245, avg=196.55, stdev=66.62 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 176], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 228], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 243], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 2003, max= 4101, per=58.72%, avg=2538.50, stdev=1041.75, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1681KiB/s (1721kB/s)(5120KiB/3046msec); 0 zone resets clat (msec): min=213, max=433, avg=318.50, stdev=81.83 lat (msec): min=217, max=433, avg=319.52, stdev=80.34 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1973, max= 2035, per=33.15%, avg=2006.50, stdev=25.94, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=17.90%, ctx=205, 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=150479: Sun Jul 26 12:37:10 2026 read: IOPS=0, BW=432KiB/s (443kB/s)(2048KiB/4737msec) clat (msec): min=128, max=232, avg=180.51, stdev=74.03 lat (msec): min=128, max=232, avg=180.51, stdev=74.03 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 2007, max= 2019, per=46.56%, avg=2013.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2162KiB/s (2214kB/s)(10.0MiB/4737msec); 0 zone resets clat (msec): min=187, max=902, avg=420.81, stdev=259.04 lat (msec): min=187, max=902, avg=420.95, stdev=259.05 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 192], | 30.00th=[ 245], 40.00th=[ 257], 50.00th=[ 305], 60.00th=[ 342], | 70.00th=[ 430], 80.00th=[ 506], 90.00th=[ 844], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 2015, max= 4023, per=49.36%, avg=2987.17, stdev=1059.93, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.04%, sys=14.13%, ctx=204, 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=150480: Sun Jul 26 12:37:10 2026 read: IOPS=1, BW=2005KiB/s (2053kB/s)(6144KiB/3064msec) clat (usec): min=477, max=310061, avg=52277.96, stdev=126287.75 lat (usec): min=479, max=310061, avg=52279.08, stdev=126287.36 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 562], 50.00th=[ 562], 60.00th=[ 988], | 70.00th=[ 1074], 80.00th=[ 1074], 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= 4071, max= 5919, per=100.00%, avg=4995.00, stdev=1306.73, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=2005KiB/s (2053kB/s)(6144KiB/3064msec); 0 zone resets clat (msec): min=202, max=1086, avg=436.76, stdev=333.31 lat (msec): min=202, max=1086, avg=437.04, stdev=333.25 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 347], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 2035, max= 3946, per=48.46%, avg=2932.67, stdev=960.74, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=8.33%, 750=16.67%, 1000=8.33% lat (msec) : 2=8.33%, 250=16.67%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=11.95%, ctx=107, 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=150481: Sun Jul 26 12:37:10 2026 read: IOPS=1, BW=1498KiB/s (1534kB/s)(5120KiB/3417msec) clat (usec): min=322, max=213384, avg=43014.37, stdev=95239.58 lat (usec): min=322, max=213385, avg=43015.38, stdev=95239.67 clat percentiles (usec): | 1.00th=[ 322], 5.00th=[ 322], 10.00th=[ 322], 20.00th=[ 322], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 482], 60.00th=[ 482], | 70.00th=[ 553], 80.00th=[ 553], 90.00th=[212861], 95.00th=[212861], | 99.00th=[212861], 99.50th=[212861], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2098KiB/s (2148kB/s)(7168KiB/3417msec); 0 zone resets clat (msec): min=154, max=703, avg=438.52, stdev=236.51 lat (msec): min=154, max=703, avg=438.67, stdev=236.45 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 228], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 401], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 676], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1410, max= 4007, per=37.70%, avg=2281.60, stdev=997.57, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=25.00%, 750=8.33% lat (msec) : 250=33.33%, 500=8.33%, 750=25.00% cpu : usr=0.03%, sys=10.57%, ctx=132, 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=4323KiB/s (4427kB/s), 432KiB/s-2353KiB/s (443kB/s-2410kB/s), io=20.0MiB (20.0MB), run=3046-4737msec WRITE: bw=6053KiB/s (6198kB/s), 1681KiB/s-2162KiB/s (1721kB/s-2214kB/s), io=28.0MiB (29.4MB), run=3046-4737msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150483: Sun Jul 26 12:37:10 2026 read: IOPS=1, BW=1635KiB/s (1674kB/s)(7168KiB/4385msec) clat (msec): min=107, max=874, avg=391.32, stdev=306.31 lat (msec): min=107, max=874, avg=391.32, stdev=306.31 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 124], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 243], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 651], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1939, max= 3893, per=57.85%, avg=2465.75, stdev=952.32, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1168KiB/s (1196kB/s)(5120KiB/4385msec); 0 zone resets clat (msec): min=117, max=473, avg=324.98, stdev=145.33 lat (msec): min=118, max=474, avg=325.30, stdev=144.90 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 456], 80.00th=[ 456], 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= 2003, max= 3785, per=43.68%, avg=2606.33, stdev=1020.85, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.56%, ctx=88, 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=150484: Sun Jul 26 12:37:10 2026 read: IOPS=0, BW=427KiB/s (437kB/s)(2048KiB/4794msec) clat (msec): min=112, max=469, avg=291.14, stdev=252.01 lat (msec): min=112, max=469, avg=291.14, stdev=252.01 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1818, max= 1892, per=43.52%, avg=1855.00, stdev=52.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2136KiB/s (2187kB/s)(10.0MiB/4794msec); 0 zone resets clat (msec): min=285, max=674, avg=416.23, stdev=134.07 lat (msec): min=285, max=674, avg=416.33, stdev=134.07 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 338], 50.00th=[ 376], 60.00th=[ 388], | 70.00th=[ 409], 80.00th=[ 447], 90.00th=[ 625], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1892, max= 4071, per=50.15%, avg=2992.33, stdev=1119.45, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=8.33%, 500=75.00%, 750=16.67% cpu : usr=0.00%, sys=6.78%, ctx=92, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150485: Sun Jul 26 12:37:10 2026 read: IOPS=1, BW=1493KiB/s (1529kB/s)(6144KiB/4115msec) clat (msec): min=86, max=421, avg=210.08, stdev=139.62 lat (msec): min=86, max=421, avg=210.08, stdev=139.62 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 1892, max= 4007, per=61.36%, avg=2615.00, stdev=1205.81, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1493KiB/s (1529kB/s)(6144KiB/4115msec); 0 zone resets clat (msec): min=138, max=1256, avg=472.90, stdev=425.53 lat (msec): min=138, max=1256, avg=473.20, stdev=425.59 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 472], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 1946, max= 3930, per=43.98%, avg=2624.00, stdev=1131.31, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.23%, ctx=94, 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=150486: Sun Jul 26 12:37:10 2026 read: IOPS=1, BW=1066KiB/s (1091kB/s)(5120KiB/4805msec) clat (msec): min=109, max=404, avg=194.89, stdev=119.91 lat (msec): min=109, max=404, avg=194.89, stdev=119.91 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 3785, max= 4063, per=92.07%, avg=3924.00, stdev=196.58, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1492KiB/s (1528kB/s)(7168KiB/4805msec); 0 zone resets clat (msec): min=135, max=1090, avg=543.78, stdev=326.69 lat (msec): min=135, max=1090, avg=544.55, stdev=326.94 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 220], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 600], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 726], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1946, max= 4071, per=40.16%, avg=2396.20, stdev=936.53, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.02%, sys=4.02%, ctx=86, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4262KiB/s (4365kB/s), 427KiB/s-1635KiB/s (437kB/s-1674kB/s), io=20.0MiB (20.0MB), run=4115-4805msec WRITE: bw=5967KiB/s (6110kB/s), 1168KiB/s-2136KiB/s (1196kB/s-2187kB/s), io=28.0MiB (29.4MB), run=4115-4805msec 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=150494: Sun Jul 26 12:37:28 2026 read: IOPS=0, BW=2936KiB/s (3007kB/s)(12.0MiB/4185msec) clat (msec): min=411, max=2277, avg=1318.26, stdev=934.24 lat (msec): min=411, max=2277, avg=1318.26, stdev=934.24 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] 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=0.00%, sys=2.01%, 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=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=150496: Sun Jul 26 12:37:28 2026 read: IOPS=0, BW=995KiB/s (1019kB/s)(4096KiB/4116msec) clat (nsec): min=1848.0M, max=1848.0M, avg=1848968794.00, stdev= 0.00 lat (nsec): min=1848.0M, max=1848.0M, avg=1848971126.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1854], 5.00th=[ 1854], 10.00th=[ 1854], 20.00th=[ 1854], | 30.00th=[ 1854], 40.00th=[ 1854], 50.00th=[ 1854], 60.00th=[ 1854], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1990KiB/s (2038kB/s)(8192KiB/4116msec); 0 zone resets clat (msec): min=621, max=1450, avg=1036.14, stdev=585.81 lat (msec): min=622, max=1450, avg=1036.50, stdev=585.83 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] 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=1.99%, ctx=44, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150499: Sun Jul 26 12:37:28 2026 write: IOPS=1, BW=5167KiB/s (5291kB/s)(12.0MiB/2378msec); 0 zone resets clat (msec): min=314, max=1506, avg=742.33, stdev=663.27 lat (msec): min=316, max=1506, avg=743.18, stdev=662.87 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.08%, sys=4.46%, ctx=55, 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=150501: Sun Jul 26 12:37:28 2026 write: IOPS=0, BW=3717KiB/s (3806kB/s)(12.0MiB/3306msec); 0 zone resets clat (msec): min=259, max=1694, avg=1045.41, stdev=727.23 lat (msec): min=259, max=1694, avg=1046.09, stdev=727.33 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, 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=1.75%, ctx=30, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3915KiB/s (4009kB/s), 995KiB/s-2936KiB/s (1019kB/s-3007kB/s), io=16.0MiB (16.8MB), run=4116-4185msec WRITE: bw=7961KiB/s (8152kB/s), 1990KiB/s-5167KiB/s (2038kB/s-5291kB/s), io=32.0MiB (33.6MB), run=2378-4116msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150495: Sun Jul 26 12:37:29 2026 read: IOPS=0, BW=3330KiB/s (3410kB/s)(12.0MiB/3690msec) clat (msec): min=804, max=1544, avg=1133.24, stdev=376.81 lat (msec): min=804, max=1544, avg=1133.24, stdev=376.81 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1053], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.99%, ctx=246, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150497: Sun Jul 26 12:37:29 2026 read: IOPS=0, BW=951KiB/s (974kB/s)(4096KiB/4308msec) clat (nsec): min=1213.3M, max=1213.3M, avg=1213276675.00, stdev= 0.00 lat (nsec): min=1213.3M, max=1213.3M, avg=1213278850.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1902KiB/s (1947kB/s)(8192KiB/4308msec); 0 zone resets clat (msec): min=699, max=2300, avg=1500.17, stdev=1132.00 lat (msec): min=700, max=2301, avg=1500.58, stdev=1131.99 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 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= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.25%, 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=150498: Sun Jul 26 12:37:29 2026 write: IOPS=0, BW=3128KiB/s (3203kB/s)(12.0MiB/3928msec); 0 zone resets clat (msec): min=496, max=2055, avg=1234.80, stdev=782.30 lat (msec): min=497, max=2055, avg=1235.40, stdev=782.17 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7953, max= 8047, per=100.00%, avg=8000.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.78%, ctx=48, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=150500: Sun Jul 26 12:37:29 2026 write: IOPS=0, BW=3999KiB/s (4095kB/s)(12.0MiB/3073msec); 0 zone resets clat (msec): min=491, max=1581, avg=983.23, stdev=553.08 lat (msec): min=491, max=1582, avg=983.61, stdev=553.12 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7641, max= 8126, per=100.00%, avg=7883.50, stdev=342.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.16%, 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=3803KiB/s (3894kB/s), 951KiB/s-3330KiB/s (974kB/s-3410kB/s), io=16.0MiB (16.8MB), run=3690-4308msec WRITE: bw=7606KiB/s (7789kB/s), 1902KiB/s-3999KiB/s (1947kB/s-4095kB/s), io=32.0MiB (33.6MB), run=3073-4308msec