== sanity test 398b: DIO and buffer IO race ============== 13:25:02 (1782235502) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.50229 s, 7.7 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=179436: Tue Jun 23 13:27:55 2026 read: IOPS=9, BW=38.9KiB/s (39.9kB/s)(5992KiB/153926msec) clat (usec): min=39, max=415573, avg=57314.52, stdev=38921.26 lat (usec): min=39, max=415574, avg=57318.65, stdev=38919.79 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 14746], 10.00th=[ 21365], 20.00th=[ 28705], | 30.00th=[ 35390], 40.00th=[ 41157], 50.00th=[ 49021], 60.00th=[ 57410], | 70.00th=[ 67634], 80.00th=[ 80217], 90.00th=[103285], 95.00th=[127402], | 99.00th=[196084], 99.50th=[217056], 99.90th=[283116], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 79, per=24.97%, avg=38.70, stdev=16.16, samples=301 iops : min= 1, max= 19, avg= 9.00, stdev= 4.06, samples=301 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6296KiB/153926msec); 0 zone resets clat (usec): min=1119, max=1019.5k, avg=42964.31, stdev=51369.37 lat (usec): min=1121, max=1019.5k, avg=42966.56, stdev=51369.43 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1500], 10.00th=[ 2376], | 20.00th=[ 5342], 30.00th=[ 9241], 40.00th=[ 18744], | 50.00th=[ 29230], 60.00th=[ 39584], 70.00th=[ 53216], | 80.00th=[ 71828], 90.00th=[ 104334], 95.00th=[ 128451], | 99.00th=[ 202376], 99.50th=[ 223347], 99.90th=[ 513803], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 119, per=25.37%, avg=41.09, stdev=19.52, samples=298 iops : min= 1, max= 29, avg= 9.60, stdev= 4.89, samples=298 lat (usec) : 50=0.16%, 100=1.50%, 250=0.23%, 750=0.03%, 1000=0.10% lat (msec) : 2=4.26%, 4=3.58%, 10=8.43%, 20=6.80%, 50=34.54% lat (msec) : 100=28.97%, 250=11.17%, 500=0.16%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.30%, ctx=6621, 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=179437: Tue Jun 23 13:27:55 2026 read: IOPS=9, BW=38.5KiB/s (39.4kB/s)(5940KiB/154272msec) clat (usec): min=38, max=343575, avg=57260.28, stdev=37287.18 lat (usec): min=39, max=343576, avg=57265.04, stdev=37286.52 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 14746], 10.00th=[ 21365], 20.00th=[ 28181], | 30.00th=[ 35914], 40.00th=[ 41681], 50.00th=[ 50070], 60.00th=[ 57410], | 70.00th=[ 68682], 80.00th=[ 80217], 90.00th=[102237], 95.00th=[126354], | 99.00th=[191890], 99.50th=[212861], 99.90th=[267387], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 6, max= 110, per=24.62%, avg=38.16, stdev=15.98, samples=299 iops : min= 1, max= 27, avg= 8.87, stdev= 4.02, samples=299 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6348KiB/154272msec); 0 zone resets clat (usec): min=1104, max=1034.3k, avg=43361.30, stdev=51101.25 lat (usec): min=1105, max=1034.3k, avg=43367.08, stdev=51101.70 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1450], 10.00th=[ 1942], | 20.00th=[ 4686], 30.00th=[ 8979], 40.00th=[ 19268], | 50.00th=[ 30802], 60.00th=[ 42206], 70.00th=[ 55313], | 80.00th=[ 72877], 90.00th=[ 104334], 95.00th=[ 131597], | 99.00th=[ 198181], 99.50th=[ 235930], 99.90th=[ 379585], | 99.95th=[1035994], 99.99th=[1035994] bw ( KiB/s): min= 6, max= 103, per=25.09%, avg=40.64, stdev=19.72, samples=299 iops : min= 1, max= 25, avg= 9.49, stdev= 4.97, samples=299 lat (usec) : 50=0.10%, 100=1.24%, 250=0.13%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.37%, 4=3.61%, 10=8.07%, 20=6.25%, 50=33.24% lat (msec) : 100=31.05%, 250=10.61%, 500=0.20%, 2000=0.03% cpu : usr=0.07%, sys=4.31%, ctx=6615, 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=179438: Tue Jun 23 13:27:55 2026 read: IOPS=9, BW=39.3KiB/s (40.3kB/s)(6028KiB/153279msec) clat (usec): min=36, max=285853, avg=55968.63, stdev=35318.68 lat (usec): min=36, max=285854, avg=55970.14, stdev=35318.70 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 14091], 10.00th=[ 21103], 20.00th=[ 29230], | 30.00th=[ 35914], 40.00th=[ 42206], 50.00th=[ 48497], 60.00th=[ 55837], | 70.00th=[ 65799], 80.00th=[ 79168], 90.00th=[100140], 95.00th=[123208], | 99.00th=[179307], 99.50th=[200279], 99.90th=[233833], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 87, per=25.35%, avg=39.29, stdev=16.72, samples=297 iops : min= 1, max= 21, avg= 9.14, stdev= 4.21, samples=297 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6260KiB/153279msec); 0 zone resets clat (usec): min=1173, max=1069.9k, avg=43753.41, stdev=51294.60 lat (usec): min=1174, max=1069.9k, avg=43757.86, stdev=51295.69 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1434], 10.00th=[ 1844], | 20.00th=[ 5276], 30.00th=[ 9634], 40.00th=[ 19530], | 50.00th=[ 31065], 60.00th=[ 42730], 70.00th=[ 55837], | 80.00th=[ 74974], 90.00th=[ 105382], 95.00th=[ 130548], | 99.00th=[ 198181], 99.50th=[ 212861], 99.90th=[ 383779], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 111, per=25.06%, avg=40.60, stdev=18.98, samples=298 iops : min= 1, max= 27, avg= 9.48, stdev= 4.78, samples=298 lat (usec) : 50=0.16%, 100=1.63%, 250=0.13%, 750=0.03% lat (msec) : 2=5.44%, 4=3.29%, 10=7.06%, 20=7.26%, 50=34.18% lat (msec) : 100=30.01%, 250=10.71%, 500=0.07%, 2000=0.03% cpu : usr=0.06%, sys=4.33%, ctx=6608, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179439: Tue Jun 23 13:27:55 2026 read: IOPS=9, BW=39.3KiB/s (40.2kB/s)(6052KiB/154120msec) clat (usec): min=45, max=434720, avg=55656.00, stdev=36904.65 lat (usec): min=46, max=434722, avg=55658.38, stdev=36903.90 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 14222], 10.00th=[ 21365], 20.00th=[ 28705], | 30.00th=[ 34341], 40.00th=[ 41157], 50.00th=[ 48497], 60.00th=[ 55837], | 70.00th=[ 65799], 80.00th=[ 78119], 90.00th=[100140], 95.00th=[124257], | 99.00th=[168821], 99.50th=[219153], 99.90th=[278922], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 7, max= 110, per=25.33%, avg=39.27, stdev=16.55, samples=298 iops : min= 1, max= 27, avg= 9.14, stdev= 4.15, samples=298 write: IOPS=10, BW=40.5KiB/s (41.4kB/s)(6236KiB/154120msec); 0 zone resets clat (usec): min=1151, max=1087.2k, avg=44535.48, stdev=51789.79 lat (usec): min=1152, max=1087.2k, avg=44538.59, stdev=51790.01 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1516], 10.00th=[ 2376], | 20.00th=[ 5604], 30.00th=[ 10552], 40.00th=[ 22676], | 50.00th=[ 31851], 60.00th=[ 42206], 70.00th=[ 56886], | 80.00th=[ 77071], 90.00th=[ 103285], 95.00th=[ 126354], | 99.00th=[ 204473], 99.50th=[ 229639], 99.90th=[ 446694], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 142, per=25.07%, avg=40.62, stdev=19.45, samples=297 iops : min= 1, max= 35, avg= 9.48, stdev= 4.90, samples=297 lat (usec) : 50=0.10%, 100=1.56%, 250=0.26%, 500=0.03% lat (msec) : 2=4.46%, 4=3.55%, 10=7.00%, 20=6.51%, 50=35.48% lat (msec) : 100=30.83%, 250=9.96%, 500=0.23%, 2000=0.03% cpu : usr=0.08%, sys=4.25%, ctx=6618, 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=156KiB/s (159kB/s), 38.5KiB/s-39.3KiB/s (39.4kB/s-40.3kB/s), io=23.4MiB (24.6MB), run=153279-154272msec WRITE: bw=163KiB/s (167kB/s), 40.5KiB/s-41.1KiB/s (41.4kB/s-42.1kB/s), io=24.6MiB (25.7MB), run=153279-154272msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179431: Tue Jun 23 13:28:41 2026 read: IOPS=7, BW=29.0KiB/s (30.7kB/s)(5992KiB/199988msec) clat (msec): min=5, max=1041, avg=52.67, stdev=53.73 lat (msec): min=5, max=1041, avg=52.67, stdev=53.73 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 74], 90.00th=[ 112], 95.00th=[ 148], | 99.00th=[ 247], 99.50th=[ 268], 99.90th=[ 558], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 125, per=26.37%, avg=31.38, stdev=22.59, samples=370 iops : min= 1, max= 31, avg= 7.16, stdev= 5.68, samples=370 write: IOPS=7, BW=31.5KiB/s (32.2kB/s)(6296KiB/199988msec); 0 zone resets clat (msec): min=11, max=488, avg=76.66, stdev=57.43 lat (msec): min=11, max=488, avg=76.66, stdev=57.43 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 47], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 91], 80.00th=[ 117], 90.00th=[ 153], 95.00th=[ 186], | 99.00th=[ 284], 99.50th=[ 326], 99.90th=[ 430], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 110, per=25.18%, avg=31.48, stdev=21.51, samples=387 iops : min= 1, max= 27, avg= 7.18, stdev= 5.41, samples=387 lat (msec) : 10=1.46%, 20=11.36%, 50=39.94%, 100=27.67%, 250=18.29% lat (msec) : 500=1.20%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.79%, ctx=5130, 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=179432: Tue Jun 23 13:28:41 2026 read: IOPS=7, BW=29.7KiB/s (30.4kB/s)(5940KiB/199822msec) clat (msec): min=5, max=1065, avg=52.62, stdev=54.05 lat (msec): min=5, max=1065, avg=52.63, stdev=54.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 74], 90.00th=[ 120], 95.00th=[ 153], | 99.00th=[ 222], 99.50th=[ 275], 99.90th=[ 405], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 127, per=26.47%, avg=31.50, stdev=22.27, samples=365 iops : min= 1, max= 31, avg= 7.18, stdev= 5.60, samples=365 write: IOPS=7, BW=31.8KiB/s (32.5kB/s)(6348KiB/199822msec); 0 zone resets clat (msec): min=11, max=458, avg=76.40, stdev=56.43 lat (msec): min=11, max=458, avg=76.40, stdev=56.43 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 71], | 70.00th=[ 92], 80.00th=[ 111], 90.00th=[ 150], 95.00th=[ 184], | 99.00th=[ 275], 99.50th=[ 326], 99.90th=[ 405], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 120, per=25.25%, avg=31.56, stdev=21.03, samples=388 iops : min= 1, max= 30, avg= 7.20, stdev= 5.29, samples=388 lat (msec) : 10=1.53%, 20=10.87%, 50=40.40%, 100=28.26%, 250=17.74% lat (msec) : 500=1.17%, 2000=0.03% cpu : usr=0.05%, sys=1.84%, ctx=5071, 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=179433: Tue Jun 23 13:28:41 2026 read: IOPS=7, BW=30.1KiB/s (30.8kB/s)(6028KiB/200140msec) clat (msec): min=5, max=383, avg=52.95, stdev=48.47 lat (msec): min=5, max=383, avg=52.95, stdev=48.47 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 38], 60.00th=[ 46], | 70.00th=[ 56], 80.00th=[ 78], 90.00th=[ 116], 95.00th=[ 153], | 99.00th=[ 226], 99.50th=[ 284], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 136, per=26.09%, avg=31.05, stdev=22.44, samples=375 iops : min= 1, max= 34, avg= 7.07, stdev= 5.64, samples=375 write: IOPS=7, BW=31.3KiB/s (32.0kB/s)(6260KiB/200140msec); 0 zone resets clat (msec): min=13, max=1072, avg=76.62, stdev=63.06 lat (msec): min=13, max=1072, avg=76.62, stdev=63.06 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 57], 60.00th=[ 70], | 70.00th=[ 89], 80.00th=[ 115], 90.00th=[ 155], 95.00th=[ 190], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 567], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 120, per=24.98%, avg=31.23, stdev=21.59, samples=387 iops : min= 1, max= 30, avg= 7.12, stdev= 5.43, samples=387 lat (msec) : 10=1.40%, 20=10.19%, 50=42.55%, 100=26.53%, 250=18.03% lat (msec) : 500=1.24%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.83%, ctx=5176, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179434: Tue Jun 23 13:28:41 2026 read: IOPS=7, BW=30.3KiB/s (31.0kB/s)(6052KiB/199736msec) clat (msec): min=5, max=357, avg=52.17, stdev=46.12 lat (msec): min=5, max=357, avg=52.17, stdev=46.12 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 56], 80.00th=[ 79], 90.00th=[ 116], 95.00th=[ 146], | 99.00th=[ 211], 99.50th=[ 271], 99.90th=[ 313], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 134, per=26.44%, avg=31.46, stdev=22.51, samples=372 iops : min= 1, max= 33, avg= 7.18, stdev= 5.65, samples=372 write: IOPS=7, BW=31.2KiB/s (31.0kB/s)(6236KiB/199736msec); 0 zone resets clat (msec): min=13, max=1100, avg=77.23, stdev=63.41 lat (msec): min=13, max=1100, avg=77.24, stdev=63.41 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 72], | 70.00th=[ 90], 80.00th=[ 111], 90.00th=[ 155], 95.00th=[ 186], | 99.00th=[ 300], 99.50th=[ 355], 99.90th=[ 558], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 120, per=24.96%, avg=31.20, stdev=21.09, samples=386 iops : min= 1, max= 30, avg= 7.11, stdev= 5.31, samples=386 lat (msec) : 10=1.46%, 20=11.04%, 50=41.41%, 100=26.56%, 250=18.42% lat (msec) : 500=1.04%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.74%, ctx=5046, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=120KiB/s (123kB/s), 29.7KiB/s-30.3KiB/s (30.4kB/s-31.0kB/s), io=23.4MiB (24.6MB), run=199736-200140msec WRITE: bw=126KiB/s (129kB/s), 31.2KiB/s-31.8KiB/s (31.0kB/s-32.5kB/s), io=24.6MiB (25.7MB), run=199736-200140msec 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=179485: Tue Jun 23 13:29:35 2026 read: IOPS=8, BW=144KiB/s (147kB/s)(5920KiB/41215msec) clat (usec): min=36, max=260702, avg=59621.53, stdev=43014.44 lat (usec): min=36, max=260702, avg=59622.85, stdev=43014.29 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 62], 10.00th=[ 693], 20.00th=[ 28967], | 30.00th=[ 36439], 40.00th=[ 44303], 50.00th=[ 50070], 60.00th=[ 60031], | 70.00th=[ 70779], 80.00th=[ 86508], 90.00th=[113771], 95.00th=[143655], | 99.00th=[214959], 99.50th=[244319], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 61, max= 318, per=25.75%, avg=145.24, stdev=59.92, samples=80 iops : min= 3, max= 19, avg= 8.26, stdev= 3.78, samples=80 write: IOPS=9, BW=155KiB/s (158kB/s)(6368KiB/41215msec); 0 zone resets clat (usec): min=1529, max=254863, avg=47910.04, stdev=46445.29 lat (usec): min=1531, max=254865, avg=47914.78, stdev=46445.45 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2008], 10.00th=[ 3523], 20.00th=[ 7308], | 30.00th=[ 12649], 40.00th=[ 24249], 50.00th=[ 35390], 60.00th=[ 47973], | 70.00th=[ 61080], 80.00th=[ 81265], 90.00th=[108528], 95.00th=[139461], | 99.00th=[212861], 99.50th=[229639], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 382, per=25.94%, avg=153.85, stdev=70.66, samples=81 iops : min= 1, max= 23, avg= 8.81, stdev= 4.46, samples=81 lat (usec) : 50=0.26%, 100=4.17%, 250=0.26%, 750=0.13% lat (msec) : 2=2.34%, 4=3.91%, 10=6.90%, 20=6.64%, 50=30.60% lat (msec) : 100=31.90%, 250=12.63%, 500=0.26% cpu : usr=0.05%, sys=4.50%, ctx=1613, 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=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=179486: Tue Jun 23 13:29:35 2026 read: IOPS=8, BW=136KiB/s (140kB/s)(5744KiB/42100msec) clat (usec): min=55, max=230791, avg=61477.20, stdev=36352.32 lat (usec): min=56, max=230792, avg=61478.47, stdev=36352.33 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 87], 10.00th=[ 24773], 20.00th=[ 36439], | 30.00th=[ 43779], 40.00th=[ 50070], 50.00th=[ 55313], 60.00th=[ 61604], | 70.00th=[ 70779], 80.00th=[ 84411], 90.00th=[110625], 95.00th=[128451], | 99.00th=[187696], 99.50th=[204473], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 29, max= 254, per=24.03%, avg=135.55, stdev=61.21, samples=82 iops : min= 1, max= 15, avg= 7.65, stdev= 3.86, samples=82 write: IOPS=9, BW=155KiB/s (159kB/s)(6544KiB/42100msec); 0 zone resets clat (usec): min=1663, max=251876, avg=48360.37, stdev=48081.52 lat (usec): min=1665, max=251879, avg=48373.75, stdev=48088.44 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2114], 10.00th=[ 3654], 20.00th=[ 7242], | 30.00th=[ 14222], 40.00th=[ 22938], 50.00th=[ 32900], 60.00th=[ 45351], | 70.00th=[ 61080], 80.00th=[ 80217], 90.00th=[121111], 95.00th=[154141], | 99.00th=[193987], 99.50th=[202376], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 415, per=26.10%, avg=154.79, stdev=70.96, samples=82 iops : min= 1, max= 25, avg= 8.87, stdev= 4.49, samples=82 lat (usec) : 100=2.34%, 250=0.13%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.69%, 4=4.04%, 10=7.68%, 20=7.16%, 50=29.30% lat (msec) : 100=34.64%, 250=12.63%, 500=0.13% cpu : usr=0.07%, sys=4.14%, ctx=1698, 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=179488: Tue Jun 23 13:29:35 2026 read: IOPS=9, BW=147KiB/s (151kB/s)(6256KiB/42466msec) clat (usec): min=49, max=251865, avg=60862.37, stdev=41016.93 lat (usec): min=50, max=251866, avg=60878.05, stdev=41012.23 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 65], 10.00th=[ 18744], 20.00th=[ 31327], | 30.00th=[ 39060], 40.00th=[ 45351], 50.00th=[ 51643], 60.00th=[ 61080], | 70.00th=[ 73925], 80.00th=[ 87557], 90.00th=[112722], 95.00th=[137364], | 99.00th=[214959], 99.50th=[229639], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 320, per=26.12%, avg=147.29, stdev=66.19, samples=83 iops : min= 1, max= 20, avg= 8.39, stdev= 4.19, samples=83 write: IOPS=8, BW=142KiB/s (145kB/s)(6032KiB/42466msec); 0 zone resets clat (usec): min=1726, max=302618, avg=48941.60, stdev=48522.11 lat (usec): min=1729, max=302618, avg=48952.48, stdev=48514.95 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2311], 10.00th=[ 4555], 20.00th=[ 9896], | 30.00th=[ 16057], 40.00th=[ 24249], 50.00th=[ 36963], 60.00th=[ 46924], | 70.00th=[ 58983], 80.00th=[ 76022], 90.00th=[119014], 95.00th=[147850], | 99.00th=[214959], 99.50th=[265290], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 351, per=23.47%, avg=139.17, stdev=59.25, samples=83 iops : min= 1, max= 21, avg= 7.88, stdev= 3.72, samples=83 lat (usec) : 50=0.13%, 100=3.65%, 250=0.39% lat (msec) : 2=2.08%, 4=2.08%, 10=5.99%, 20=8.33%, 50=32.29% lat (msec) : 100=31.12%, 250=13.54%, 500=0.39% cpu : usr=0.04%, sys=4.12%, ctx=1715, 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=179489: Tue Jun 23 13:29:35 2026 read: IOPS=9, BW=149KiB/s (152kB/s)(6032KiB/40571msec) clat (usec): min=37, max=199125, avg=59777.74, stdev=36441.06 lat (usec): min=37, max=199126, avg=59778.93, stdev=36441.03 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 330], 20.00th=[ 31065], | 30.00th=[ 39584], 40.00th=[ 49546], 50.00th=[ 56886], 60.00th=[ 68682], | 70.00th=[ 74974], 80.00th=[ 86508], 90.00th=[104334], 95.00th=[128451], | 99.00th=[168821], 99.50th=[187696], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 313, per=26.41%, avg=148.96, stdev=59.71, samples=78 iops : min= 1, max= 19, avg= 8.50, stdev= 3.81, samples=78 write: IOPS=9, BW=154KiB/s (158kB/s)(6256KiB/40571msec); 0 zone resets clat (usec): min=1580, max=215163, avg=45498.12, stdev=41216.37 lat (usec): min=1583, max=215166, avg=45505.08, stdev=41213.06 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 2089], 10.00th=[ 4621], 20.00th=[ 9503], | 30.00th=[ 15533], 40.00th=[ 23200], 50.00th=[ 34341], 60.00th=[ 44303], | 70.00th=[ 58459], 80.00th=[ 76022], 90.00th=[103285], 95.00th=[128451], | 99.00th=[173016], 99.50th=[187696], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 30, max= 349, per=25.93%, avg=153.77, stdev=64.66, samples=79 iops : min= 1, max= 21, avg= 8.81, stdev= 4.08, samples=79 lat (usec) : 50=0.39%, 100=4.30%, 250=0.13%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.08%, 4=2.60%, 10=6.90%, 20=7.16%, 50=28.52% lat (msec) : 100=36.59%, 250=11.07% cpu : usr=0.06%, sys=4.45%, ctx=1656, 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=564KiB/s (578kB/s), 136KiB/s-149KiB/s (140kB/s-152kB/s), io=23.4MiB (24.5MB), run=40571-42466msec WRITE: bw=593KiB/s (608kB/s), 142KiB/s-155KiB/s (145kB/s-159kB/s), io=24.6MiB (25.8MB), run=40571-42466msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179487: Tue Jun 23 13:29:49 2026 read: IOPS=6, BW=105KiB/s (107kB/s)(5920KiB/56600msec) clat (msec): min=7, max=256, avg=60.55, stdev=46.60 lat (msec): min=7, max=256, avg=60.55, stdev=46.60 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 85], 90.00th=[ 130], 95.00th=[ 169], | 99.00th=[ 226], 99.50th=[ 249], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 319, per=26.26%, avg=110.82, stdev=66.84, samples=104 iops : min= 1, max= 19, avg= 6.08, stdev= 4.20, samples=104 write: IOPS=7, BW=113KiB/s (115kB/s)(6368KiB/56600msec); 0 zone resets clat (msec): min=17, max=389, avg=85.63, stdev=56.80 lat (msec): min=17, max=389, avg=85.63, stdev=56.80 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 30], 10.00th=[ 33], 20.00th=[ 40], | 30.00th=[ 48], 40.00th=[ 57], 50.00th=[ 71], 60.00th=[ 82], | 70.00th=[ 103], 80.00th=[ 123], 90.00th=[ 163], 95.00th=[ 207], | 99.00th=[ 279], 99.50th=[ 317], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 29, max= 320, per=25.71%, avg=114.15, stdev=65.64, samples=109 iops : min= 1, max= 20, avg= 6.28, stdev= 4.16, samples=109 lat (msec) : 10=0.13%, 20=5.21%, 50=37.63%, 100=34.11%, 250=22.14% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.60%, ctx=1242, 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=179490: Tue Jun 23 13:29:49 2026 read: IOPS=6, BW=101KiB/s (104kB/s)(5744KiB/56717msec) clat (msec): min=8, max=339, avg=60.63, stdev=50.28 lat (msec): min=8, max=339, avg=60.64, stdev=50.28 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 20], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 87], 90.00th=[ 132], 95.00th=[ 167], | 99.00th=[ 249], 99.50th=[ 300], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 318, per=25.63%, avg=108.17, stdev=70.31, samples=103 iops : min= 1, max= 19, avg= 5.91, stdev= 4.42, samples=103 write: IOPS=7, BW=115KiB/s (118kB/s)(6544KiB/56717msec); 0 zone resets clat (msec): min=16, max=399, avg=84.82, stdev=56.41 lat (msec): min=16, max=399, avg=84.83, stdev=56.40 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 29], 10.00th=[ 34], 20.00th=[ 43], | 30.00th=[ 50], 40.00th=[ 57], 50.00th=[ 67], 60.00th=[ 79], | 70.00th=[ 96], 80.00th=[ 123], 90.00th=[ 167], 95.00th=[ 209], | 99.00th=[ 259], 99.50th=[ 268], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 29, max= 320, per=26.25%, avg=116.54, stdev=64.52, samples=109 iops : min= 1, max= 20, avg= 6.43, stdev= 4.08, samples=109 lat (msec) : 10=0.52%, 20=4.82%, 50=37.63%, 100=34.64%, 250=20.96% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.81%, ctx=1322, 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=179491: Tue Jun 23 13:29:49 2026 read: IOPS=6, BW=110KiB/s (113kB/s)(6256KiB/56669msec) clat (msec): min=9, max=268, avg=58.14, stdev=46.15 lat (msec): min=9, max=268, avg=58.15, stdev=46.15 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 30], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 64], 80.00th=[ 85], 90.00th=[ 128], 95.00th=[ 159], | 99.00th=[ 241], 99.50th=[ 251], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 413, per=26.91%, avg=113.56, stdev=80.91, samples=108 iops : min= 1, max= 25, avg= 6.24, stdev= 5.10, samples=108 write: IOPS=6, BW=106KiB/s (109kB/s)(6032KiB/56669msec); 0 zone resets clat (msec): min=15, max=326, avg=89.11, stdev=55.65 lat (msec): min=15, max=326, avg=89.11, stdev=55.64 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 29], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 51], 40.00th=[ 61], 50.00th=[ 72], 60.00th=[ 89], | 70.00th=[ 110], 80.00th=[ 132], 90.00th=[ 174], 95.00th=[ 205], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 254, per=23.94%, avg=106.29, stdev=57.58, samples=109 iops : min= 1, max= 15, avg= 5.79, stdev= 3.62, samples=109 lat (msec) : 10=0.52%, 20=7.29%, 50=34.90%, 100=33.33%, 250=23.18% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.56%, ctx=1216, 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=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=179492: Tue Jun 23 13:29:49 2026 read: IOPS=6, BW=108KiB/s (110kB/s)(6032KiB/56075msec) clat (msec): min=9, max=353, avg=59.03, stdev=48.81 lat (msec): min=9, max=353, avg=59.03, stdev=48.81 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 64], 80.00th=[ 83], 90.00th=[ 121], 95.00th=[ 167], | 99.00th=[ 239], 99.50th=[ 253], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 30, max= 349, per=26.52%, avg=111.91, stdev=69.74, samples=105 iops : min= 1, max= 21, avg= 6.14, stdev= 4.39, samples=105 write: IOPS=6, BW=112KiB/s (114kB/s)(6256KiB/56075msec); 0 zone resets clat (msec): min=18, max=379, avg=85.83, stdev=58.70 lat (msec): min=18, max=379, avg=85.83, stdev=58.70 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 28], 10.00th=[ 33], 20.00th=[ 40], | 30.00th=[ 48], 40.00th=[ 57], 50.00th=[ 67], 60.00th=[ 81], | 70.00th=[ 99], 80.00th=[ 124], 90.00th=[ 165], 95.00th=[ 211], | 99.00th=[ 279], 99.50th=[ 330], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 30, max= 352, per=25.56%, avg=113.47, stdev=68.14, samples=108 iops : min= 1, max= 22, avg= 6.24, stdev= 4.29, samples=108 lat (msec) : 10=0.26%, 20=5.21%, 50=39.19%, 100=33.07%, 250=20.70% lat (msec) : 500=1.56% cpu : usr=0.04%, sys=1.57%, ctx=1228, 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=422KiB/s (432kB/s), 101KiB/s-110KiB/s (104kB/s-113kB/s), io=23.4MiB (24.5MB), run=56075-56717msec WRITE: bw=444KiB/s (455kB/s), 106KiB/s-115KiB/s (109kB/s-118kB/s), io=24.6MiB (25.8MB), run=56075-56717msec 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=179507: Tue Jun 23 13:30:07 2026 read: IOPS=1, BW=1151KiB/s (1178kB/s)(7168KiB/6230msec) clat (msec): min=104, max=3303, avg=600.49, stdev=1192.08 lat (msec): min=104, max=3303, avg=600.49, stdev=1192.08 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 180], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1996, max= 6119, per=100.00%, avg=3036.25, stdev=2055.19, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=0, BW=822KiB/s (842kB/s)(5120KiB/6230msec); 0 zone resets clat (msec): min=198, max=853, avg=392.85, stdev=263.13 lat (msec): min=198, max=853, avg=392.94, stdev=263.13 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 199], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 2011, max= 4096, per=71.66%, avg=2708.67, stdev=1201.47, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 250=58.33%, 500=25.00%, 1000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=10.95%, ctx=647, 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=179508: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=270KiB/s (277kB/s)(2048KiB/7584msec) clat (msec): min=276, max=609, avg=443.00, stdev=235.79 lat (msec): min=276, max=609, avg=443.00, stdev=235.79 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1865, max= 2039, per=72.30%, avg=1952.00, stdev=123.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1350KiB/s (1383kB/s)(10.0MiB/7584msec); 0 zone resets clat (msec): min=140, max=3101, avg=642.07, stdev=887.04 lat (msec): min=140, max=3102, avg=642.33, stdev=887.34 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 259], 50.00th=[ 342], 60.00th=[ 460], | 70.00th=[ 472], 80.00th=[ 600], 90.00th=[ 735], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min= 1865, max= 4087, per=70.87%, avg=2679.00, stdev=1074.14, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=25.00%, 500=41.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=9.24%, ctx=180, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179509: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=986KiB/s (1009kB/s)(6144KiB/6234msec) clat (usec): min=1062, max=303981, avg=109963.01, stdev=130206.68 lat (usec): min=1064, max=303983, avg=109964.37, stdev=130206.82 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1057], 10.00th=[ 1057], 20.00th=[ 1221], | 30.00th=[ 1221], 40.00th=[ 42730], 50.00th=[ 42730], 60.00th=[ 68682], | 70.00th=[242222], 80.00th=[242222], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 1996, max= 6144, per=100.00%, avg=3383.67, stdev=2390.53, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 write: IOPS=0, BW=986KiB/s (1009kB/s)(6144KiB/6234msec); 0 zone resets clat (msec): min=149, max=3760, avg=901.60, stdev=1404.18 lat (msec): min=149, max=3760, avg=902.27, stdev=1403.89 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 388], | 70.00th=[ 451], 80.00th=[ 451], 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= 1494, max= 2048, per=50.73%, avg=1917.60, stdev=237.72, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 2=16.67%, 50=8.33%, 100=8.33%, 250=16.67%, 500=41.67% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=8.02%, ctx=119, 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=179511: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=857KiB/s (878kB/s)(5120KiB/5971msec) clat (usec): min=377, max=438183, avg=143194.51, stdev=203552.21 lat (usec): min=378, max=438185, avg=143195.65, stdev=203552.57 clat percentiles (usec): | 1.00th=[ 379], 5.00th=[ 379], 10.00th=[ 379], 20.00th=[ 379], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 750], 60.00th=[ 750], | 70.00th=[274727], 80.00th=[274727], 90.00th=[438305], 95.00th=[438305], | 99.00th=[438305], 99.50th=[438305], 99.90th=[438305], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1200KiB/s (1229kB/s)(7168KiB/5971msec); 0 zone resets clat (msec): min=212, max=3347, avg=743.78, stdev=1150.17 lat (msec): min=212, max=3347, avg=744.03, stdev=1150.09 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 253], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 409], 90.00th=[ 3339], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 1627, max= 4039, per=63.97%, avg=2418.25, stdev=1095.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=8.33%, 500=58.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.11%, ctx=104, 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=2700KiB/s (2765kB/s), 270KiB/s-1151KiB/s (277kB/s-1178kB/s), io=20.0MiB (20.0MB), run=5971-7584msec WRITE: bw=3781KiB/s (3871kB/s), 822KiB/s-1350KiB/s (842kB/s-1383kB/s), io=28.0MiB (29.4MB), run=5971-7584msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179510: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=923KiB/s (945kB/s)(7168KiB/7770msec) clat (msec): min=85, max=2972, avg=919.10, stdev=1120.21 lat (msec): min=85, max=2972, avg=919.10, stdev=1120.21 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 106], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 485], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 1972], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 1914, max= 4023, per=95.67%, avg=2498.00, stdev=1018.21, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=659KiB/s (675kB/s)(5120KiB/7770msec); 0 zone resets clat (msec): min=70, max=350, avg=191.62, stdev=103.75 lat (msec): min=71, max=350, avg=191.74, stdev=103.79 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 161], 60.00th=[ 161], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2011, max= 2035, per=55.33%, avg=2023.00, stdev=16.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.69%, ctx=98, 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=179512: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=278KiB/s (285kB/s)(2048KiB/7358msec) clat (msec): min=497, max=589, avg=543.38, stdev=64.94 lat (msec): min=497, max=589, avg=543.38, stdev=64.94 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 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= 1422, max= 2007, per=65.66%, avg=1714.50, stdev=413.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1392KiB/s (1425kB/s)(10.0MiB/7358msec); 0 zone resets clat (msec): min=146, max=3025, avg=616.51, stdev=868.48 lat (msec): min=146, max=3025, avg=616.62, stdev=868.48 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 167], | 30.00th=[ 190], 40.00th=[ 226], 50.00th=[ 355], 60.00th=[ 388], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 810], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 1914, max= 6107, per=85.94%, avg=3141.80, stdev=1798.32, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.67, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=2.83%, ctx=83, 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=179513: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=784KiB/s (802kB/s)(6144KiB/7841msec) clat (msec): min=53, max=624, avg=285.15, stdev=252.26 lat (msec): min=53, max=624, avg=285.15, stdev=252.26 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 78], | 30.00th=[ 78], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 305], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2007, max= 4023, per=96.83%, avg=2528.25, stdev=996.65, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=784KiB/s (802kB/s)(6144KiB/7841msec); 0 zone resets clat (msec): min=102, max=4141, avg=957.73, stdev=1567.47 lat (msec): min=102, max=4141, avg=957.83, stdev=1567.47 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 380], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 4144], 95.00th=[ 4144], | 99.00th=[ 4144], 99.50th=[ 4144], 99.90th=[ 4144], 99.95th=[ 4144], | 99.99th=[ 4144] bw ( KiB/s): min= 1935, max= 4096, per=82.83%, avg=3028.25, stdev=1218.94, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=25.00%, 250=8.33%, 500=33.33%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=3.29%, ctx=120, 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=179514: Tue Jun 23 13:30:07 2026 read: IOPS=0, BW=679KiB/s (696kB/s)(5120KiB/7535msec) clat (msec): min=102, max=664, avg=365.58, stdev=239.58 lat (msec): min=102, max=664, avg=365.58, stdev=239.58 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1914, max= 4071, per=100.00%, avg=2665.33, stdev=1218.31, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=951KiB/s (974kB/s)(7168KiB/7535msec); 0 zone resets clat (msec): min=102, max=3534, avg=760.34, stdev=1232.76 lat (msec): min=102, max=3534, avg=760.86, stdev=1232.63 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 123], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 355], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 550], 90.00th=[ 3540], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 1802, max= 3871, per=66.46%, avg=2429.75, stdev=966.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, >=2000=8.33% cpu : usr=0.03%, sys=3.17%, ctx=106, 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=2612KiB/s (2675kB/s), 278KiB/s-923KiB/s (285kB/s-945kB/s), io=20.0MiB (20.0MB), run=7358-7841msec WRITE: bw=3657KiB/s (3744kB/s), 659KiB/s-1392KiB/s (675kB/s-1425kB/s), io=28.0MiB (29.4MB), run=7358-7841msec 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=179525: Tue Jun 23 13:30:22 2026 read: IOPS=1, BW=5361KiB/s (5490kB/s)(12.0MiB/2292msec) clat (msec): min=630, max=830, avg=708.27, stdev=107.05 lat (msec): min=630, max=830, avg=708.27, stdev=107.05 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7968, max= 8094, per=100.00%, avg=8031.00, stdev=89.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.98%, ctx=319, 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=179527: Tue Jun 23 13:30:22 2026 read: IOPS=0, BW=1289KiB/s (1320kB/s)(4096KiB/3177msec) clat (nsec): min=749863k, max=749863k, avg=749863171.00, stdev= 0.00 lat (nsec): min=749865k, max=749865k, avg=749865308.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2579KiB/s (2640kB/s)(8192KiB/3177msec); 0 zone resets clat (msec): min=582, max=1753, avg=1168.32, stdev=828.00 lat (msec): min=583, max=1754, avg=1168.75, stdev=828.07 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 1754], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8192, max= 8192, per=89.68%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.03%, sys=4.56%, ctx=129, 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=179528: Tue Jun 23 13:30:22 2026 write: IOPS=0, BW=3426KiB/s (3508kB/s)(12.0MiB/3587msec); 0 zone resets clat (msec): min=227, max=1605, avg=1128.06, stdev=780.39 lat (msec): min=230, max=1608, avg=1131.28, stdev=780.82 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8094, max= 8094, per=88.60%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.29%, ctx=43, 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=179529: Tue Jun 23 13:30:22 2026 write: IOPS=1, BW=4874KiB/s (4991kB/s)(12.0MiB/2521msec); 0 zone resets clat (msec): min=443, max=1193, avg=784.62, stdev=379.16 lat (msec): min=444, max=1198, avg=786.76, stdev=381.98 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7968, max= 7968, per=87.22%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.76%, ctx=63, 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=5157KiB/s (5281kB/s), 1289KiB/s-5361KiB/s (1320kB/s-5490kB/s), io=16.0MiB (16.8MB), run=2292-3177msec WRITE: bw=9135KiB/s (9354kB/s), 2579KiB/s-4874KiB/s (2640kB/s-4991kB/s), io=32.0MiB (33.6MB), run=2521-3587msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179522: Tue Jun 23 13:30:22 2026 read: IOPS=1, BW=4194KiB/s (4295kB/s)(12.0MiB/2930msec) clat (msec): min=353, max=1352, avg=946.40, stdev=524.80 lat (msec): min=353, max=1352, avg=946.40, stdev=524.80 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.24%, ctx=33, 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=179523: Tue Jun 23 13:30:22 2026 read: IOPS=0, BW=1133KiB/s (1160kB/s)(4096KiB/3615msec) clat (nsec): min=953066k, max=953066k, avg=953065821.00, stdev= 0.00 lat (nsec): min=953069k, max=953069k, avg=953068805.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 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= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2266KiB/s (2321kB/s)(8192KiB/3615msec); 0 zone resets clat (msec): min=1019, max=1580, avg=1299.83, stdev=396.40 lat (msec): min=1021, max=1580, avg=1300.87, stdev=395.68 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1586], | 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= 8175, max= 8175, per=90.19%, avg=8175.00, 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=0.06%, sys=3.10%, ctx=41, 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=179524: Tue Jun 23 13:30:22 2026 write: IOPS=1, BW=5333KiB/s (5461kB/s)(12.0MiB/2304msec); 0 zone resets clat (msec): min=230, max=1167, avg=738.22, stdev=473.08 lat (msec): min=231, max=1167, avg=738.83, stdev=472.75 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7515, max= 8159, per=86.46%, avg=7837.00, stdev=455.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=5.17%, ctx=51, 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=179526: Tue Jun 23 13:30:22 2026 write: IOPS=0, BW=3634KiB/s (3722kB/s)(12.0MiB/3381msec); 0 zone resets clat (msec): min=272, max=2772, avg=1114.94, stdev=1435.51 lat (msec): min=276, max=2773, avg=1116.58, stdev=1434.75 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7571, max= 7571, per=83.53%, avg=7571.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.09%, sys=3.52%, ctx=43, 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=4532KiB/s (4641kB/s), 1133KiB/s-4194KiB/s (1160kB/s-4295kB/s), io=16.0MiB (16.8MB), run=2930-3615msec WRITE: bw=9064KiB/s (9282kB/s), 2266KiB/s-5333KiB/s (2321kB/s-5461kB/s), io=32.0MiB (33.6MB), run=2304-3615msec