== sanity test 398b: DIO and buffer IO race ============== 06:37:01 (1787567821) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.21567 s, 7.0 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=144231: Mon Aug 24 06:39:25 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5992KiB/123533msec) clat (usec): min=31, max=631415, avg=40822.15, stdev=35224.89 lat (usec): min=31, max=631417, avg=40825.26, stdev=35224.55 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 8979], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[135267], 99.50th=[156238], 99.90th=[492831], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 6, max= 123, per=24.96%, avg=47.92, stdev=19.31, samples=243 iops : min= 1, max= 30, avg=11.34, stdev= 4.86, samples=243 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(6296KiB/123533msec); 0 zone resets clat (usec): min=915, max=410249, avg=39380.03, stdev=40757.80 lat (usec): min=917, max=410250, avg=39382.62, stdev=40758.20 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1205], 10.00th=[ 1401], 20.00th=[ 3720], | 30.00th=[ 7898], 40.00th=[ 19006], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 53740], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[164627], 99.50th=[210764], 99.90th=[362808], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 111, per=25.22%, avg=50.69, stdev=20.65, samples=242 iops : min= 1, max= 27, avg=12.03, stdev= 5.20, samples=242 lat (usec) : 50=0.49%, 100=3.52%, 250=0.29%, 500=0.03%, 1000=0.36% lat (msec) : 2=7.19%, 4=3.19%, 10=6.64%, 20=9.90%, 50=37.73% lat (msec) : 100=24.64%, 250=5.79%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=5.16%, ctx=6438, 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=144232: Mon Aug 24 06:39:25 2026 read: IOPS=12, BW=48.7KiB/s (49.8kB/s)(5940KiB/122035msec) clat (usec): min=31, max=279568, avg=38362.66, stdev=28718.57 lat (usec): min=32, max=279569, avg=38364.89, stdev=28718.04 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 2212], 20.00th=[ 18482], | 30.00th=[ 23462], 40.00th=[ 27657], 50.00th=[ 32113], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 56886], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[139461], 99.50th=[160433], 99.90th=[250610], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 6, max= 111, per=25.19%, avg=48.36, stdev=21.55, samples=239 iops : min= 1, max= 27, avg=11.45, stdev= 5.40, samples=239 write: IOPS=13, BW=52.0KiB/s (53.3kB/s)(6348KiB/122035msec); 0 zone resets clat (usec): min=813, max=624347, avg=40717.67, stdev=43876.58 lat (usec): min=813, max=624349, avg=40720.62, stdev=43876.50 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1516], 20.00th=[ 4293], | 30.00th=[ 9110], 40.00th=[ 20055], 50.00th=[ 31065], 60.00th=[ 41157], | 70.00th=[ 52691], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[119014], | 99.00th=[193987], 99.50th=[227541], 99.90th=[396362], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 111, per=25.69%, avg=51.64, stdev=20.15, samples=239 iops : min= 1, max= 27, avg=12.27, stdev= 5.07, samples=239 lat (usec) : 50=0.62%, 100=3.65%, 250=0.39%, 500=0.07%, 1000=0.29% lat (msec) : 2=6.25%, 4=3.39%, 10=6.51%, 20=10.58%, 50=39.00% lat (msec) : 100=23.60%, 250=5.50%, 500=0.13%, 750=0.03% cpu : usr=0.08%, sys=5.21%, ctx=6371, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144233: Mon Aug 24 06:39:25 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(6028KiB/124645msec) clat (usec): min=31, max=642005, avg=39383.96, stdev=33608.21 lat (usec): min=32, max=642006, avg=39394.39, stdev=33613.81 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 59], 10.00th=[ 326], 20.00th=[ 17957], | 30.00th=[ 22938], 40.00th=[ 27395], 50.00th=[ 32375], 60.00th=[ 39584], | 70.00th=[ 48497], 80.00th=[ 58983], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[152044], 99.50th=[170918], 99.90th=[291505], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 6, max= 127, per=25.25%, avg=48.48, stdev=20.77, samples=243 iops : min= 1, max= 31, avg=11.49, stdev= 5.21, samples=243 write: IOPS=12, BW=50.2KiB/s (51.4kB/s)(6260KiB/124645msec); 0 zone resets clat (usec): min=828, max=491364, avg=41424.53, stdev=43003.48 lat (usec): min=830, max=491364, avg=41427.96, stdev=43004.28 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1188], 10.00th=[ 1450], 20.00th=[ 3818], | 30.00th=[ 9110], 40.00th=[ 21365], 50.00th=[ 31589], 60.00th=[ 42730], | 70.00th=[ 53216], 80.00th=[ 71828], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[187696], 99.50th=[225444], 99.90th=[287310], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 7, max= 151, per=24.73%, avg=49.71, stdev=22.90, samples=246 iops : min= 1, max= 37, avg=11.79, stdev= 5.76, samples=246 lat (usec) : 50=0.75%, 100=3.71%, 250=0.42%, 500=0.13%, 1000=0.23% lat (msec) : 2=6.97%, 4=3.55%, 10=5.63%, 20=9.80%, 50=38.28% lat (msec) : 100=24.48%, 250=5.83%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=5.02%, ctx=6427, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144234: Mon Aug 24 06:39:25 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6052KiB/124708msec) clat (usec): min=33, max=349977, avg=38919.05, stdev=29560.49 lat (usec): min=33, max=349979, avg=38920.61, stdev=29560.30 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 83], 20.00th=[ 18220], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[125305], 99.50th=[158335], 99.90th=[235930], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 119, per=25.32%, avg=48.60, stdev=20.16, samples=243 iops : min= 1, max= 29, avg=11.51, stdev= 5.05, samples=243 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6236KiB/124708msec); 0 zone resets clat (usec): min=728, max=618580, avg=41910.51, stdev=43663.09 lat (usec): min=729, max=618581, avg=41912.33, stdev=43663.12 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1205], 10.00th=[ 1549], 20.00th=[ 4359], | 30.00th=[ 9503], 40.00th=[ 21627], 50.00th=[ 31851], 60.00th=[ 42206], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[ 95945], 95.00th=[119014], | 99.00th=[183501], 99.50th=[206570], 99.90th=[287310], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 6, max= 119, per=24.58%, avg=49.41, stdev=20.36, samples=246 iops : min= 1, max= 29, avg=11.72, stdev= 5.13, samples=246 lat (usec) : 50=0.55%, 100=4.59%, 250=0.39%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.26% lat (msec) : 2=6.18%, 4=3.26%, 10=6.22%, 20=9.57%, 50=38.41% lat (msec) : 100=24.67%, 250=5.57%, 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=5.28%, ctx=6364, 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=193KiB/s (197kB/s), 48.4KiB/s-48.7KiB/s (49.5kB/s-49.8kB/s), io=23.4MiB (24.6MB), run=122035-124708msec WRITE: bw=202KiB/s (206kB/s), 50.0KiB/s-52.0KiB/s (51.2kB/s-53.3kB/s), io=24.6MiB (25.7MB), run=122035-124708msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144235: Mon Aug 24 06:42:04 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(5992KiB/283257msec) clat (msec): min=5, max=639, avg=34.76, stdev=36.85 lat (msec): min=5, max=639, avg=34.76, stdev=36.85 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 71], 95.00th=[ 101], | 99.00th=[ 153], 99.50th=[ 186], 99.90th=[ 542], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 87, per=28.53%, avg=23.96, stdev=15.75, samples=482 iops : min= 1, max= 21, avg= 5.38, stdev= 3.98, samples=482 write: IOPS=5, BW=22.2KiB/s (22.8kB/s)(6296KiB/283257msec); 0 zone resets clat (msec): min=37, max=492, avg=146.68, stdev=65.92 lat (msec): min=37, max=492, avg=146.68, stdev=65.92 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 120], 50.00th=[ 133], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 239], 95.00th=[ 279], | 99.00th=[ 359], 99.50th=[ 418], 99.90th=[ 460], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 7, max= 63, per=24.85%, avg=21.87, stdev= 9.47, samples=553 iops : min= 1, max= 15, avg= 4.85, stdev= 2.43, samples=553 lat (msec) : 10=3.35%, 20=16.24%, 50=20.87%, 100=18.85%, 250=36.36% lat (msec) : 500=4.26%, 750=0.07% cpu : usr=0.05%, sys=1.07%, ctx=5217, 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=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=144236: Mon Aug 24 06:42:04 2026 read: IOPS=5, BW=20.9KiB/s (21.5kB/s)(5940KiB/283559msec) clat (msec): min=5, max=724, avg=34.18, stdev=39.27 lat (msec): min=5, max=724, avg=34.18, stdev=39.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 69], 95.00th=[ 92], | 99.00th=[ 144], 99.50th=[ 239], 99.90th=[ 542], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 95, per=29.20%, avg=24.53, stdev=15.69, samples=468 iops : min= 1, max= 23, avg= 5.53, stdev= 3.95, samples=468 write: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6348KiB/283559msec); 0 zone resets clat (msec): min=32, max=539, avg=146.49, stdev=65.65 lat (msec): min=32, max=539, avg=146.49, stdev=65.65 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 93], | 30.00th=[ 106], 40.00th=[ 120], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 234], 95.00th=[ 271], | 99.00th=[ 359], 99.50th=[ 414], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 55, per=25.06%, avg=22.05, stdev= 9.30, samples=554 iops : min= 1, max= 13, avg= 4.90, stdev= 2.39, samples=554 lat (msec) : 10=3.68%, 20=15.92%, 50=21.06%, 100=18.95%, 250=36.49% lat (msec) : 500=3.78%, 750=0.13% cpu : usr=0.04%, sys=1.05%, ctx=5057, 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=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=144237: Mon Aug 24 06:42:04 2026 read: IOPS=5, BW=21.4KiB/s (21.9kB/s)(6028KiB/282018msec) clat (msec): min=6, max=459, avg=35.04, stdev=32.26 lat (msec): min=6, max=459, avg=35.04, stdev=32.26 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 72], 95.00th=[ 97], | 99.00th=[ 157], 99.50th=[ 176], 99.90th=[ 253], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 104, per=28.17%, avg=23.66, stdev=16.34, samples=492 iops : min= 1, max= 26, avg= 5.30, stdev= 4.15, samples=492 write: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6260KiB/282018msec); 0 zone resets clat (msec): min=37, max=807, avg=146.22, stdev=69.74 lat (msec): min=37, max=807, avg=146.22, stdev=69.74 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 118], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 190], 90.00th=[ 230], 95.00th=[ 266], | 99.00th=[ 384], 99.50th=[ 460], 99.90th=[ 709], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 56, per=24.70%, avg=21.73, stdev= 9.79, samples=554 iops : min= 1, max= 14, avg= 4.82, stdev= 2.51, samples=554 lat (msec) : 10=3.06%, 20=16.21%, 50=20.54%, 100=20.38%, 250=36.07% lat (msec) : 500=3.65%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.05%, ctx=5118, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144238: Mon Aug 24 06:42:04 2026 read: IOPS=5, BW=21.5KiB/s (21.0kB/s)(6052KiB/281967msec) clat (msec): min=5, max=402, avg=34.52, stdev=33.60 lat (msec): min=5, max=402, avg=34.52, stdev=33.60 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 71], 95.00th=[ 94], | 99.00th=[ 167], 99.50th=[ 226], 99.90th=[ 380], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 87, per=28.95%, avg=24.32, stdev=16.08, samples=481 iops : min= 1, max= 21, avg= 5.47, stdev= 4.10, samples=481 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6236KiB/281967msec); 0 zone resets clat (msec): min=31, max=777, avg=147.12, stdev=69.54 lat (msec): min=31, max=777, avg=147.12, stdev=69.54 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 106], 40.00th=[ 117], 50.00th=[ 131], 60.00th=[ 150], | 70.00th=[ 171], 80.00th=[ 199], 90.00th=[ 239], 95.00th=[ 271], | 99.00th=[ 359], 99.50th=[ 443], 99.90th=[ 718], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 55, per=24.75%, avg=21.78, stdev= 9.60, samples=551 iops : min= 1, max= 13, avg= 4.83, stdev= 2.46, samples=551 lat (msec) : 10=2.93%, 20=16.83%, 50=20.93%, 100=19.60%, 250=35.81% lat (msec) : 500=3.81%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.06%, ctx=5095, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=84.7KiB/s (86.7kB/s), 20.9KiB/s-21.5KiB/s (21.5kB/s-21.0kB/s), io=23.4MiB (24.6MB), run=281967-283559msec WRITE: bw=88.7KiB/s (90.8kB/s), 22.1KiB/s-22.4KiB/s (22.6kB/s-22.9kB/s), io=24.6MiB (25.7MB), run=281967-283559msec 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=144291: Mon Aug 24 06:42:40 2026 read: IOPS=13, BW=222KiB/s (228kB/s)(5920KiB/26611msec) clat (usec): min=36, max=233832, avg=36392.05, stdev=29780.61 lat (usec): min=36, max=233832, avg=36393.22, stdev=29780.61 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 474], | 30.00th=[ 21627], 40.00th=[ 26870], 50.00th=[ 32900], 60.00th=[ 40109], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 78119], 95.00th=[ 89654], | 99.00th=[117965], 99.50th=[129500], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 63, max= 383, per=24.30%, avg=218.67, stdev=88.18, samples=52 iops : min= 3, max= 23, avg=12.92, stdev= 5.57, samples=52 write: IOPS=14, BW=239KiB/s (245kB/s)(6368KiB/26611msec); 0 zone resets clat (usec): min=1253, max=307427, avg=32693.85, stdev=38728.76 lat (usec): min=1256, max=307429, avg=32695.89, stdev=38728.75 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1680], 10.00th=[ 1991], 20.00th=[ 3752], | 30.00th=[ 6587], 40.00th=[ 10290], 50.00th=[ 17957], 60.00th=[ 28181], | 70.00th=[ 39584], 80.00th=[ 57410], 90.00th=[ 83362], 95.00th=[106431], | 99.00th=[168821], 99.50th=[221250], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 31, max= 512, per=25.13%, avg=237.73, stdev=108.61, samples=52 iops : min= 1, max= 32, avg=14.12, stdev= 6.87, samples=52 lat (usec) : 50=0.91%, 100=7.81%, 250=0.39%, 500=0.65%, 750=0.26% lat (msec) : 2=5.21%, 4=5.60%, 10=9.77%, 20=10.16%, 50=34.77% lat (msec) : 100=19.92%, 250=4.43%, 500=0.13% cpu : usr=0.08%, sys=5.85%, ctx=1436, 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=144292: Mon Aug 24 06:42:40 2026 read: IOPS=13, BW=218KiB/s (223kB/s)(5744KiB/26354msec) clat (usec): min=39, max=431241, avg=41093.48, stdev=40698.32 lat (usec): min=39, max=431242, avg=41094.63, stdev=40698.36 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 13960], | 30.00th=[ 23987], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 98042], | 99.00th=[173016], 99.50th=[304088], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 60, max= 416, per=24.17%, avg=217.52, stdev=86.65, samples=52 iops : min= 3, max= 26, avg=12.85, stdev= 5.50, samples=52 write: IOPS=15, BW=248KiB/s (254kB/s)(6544KiB/26354msec); 0 zone resets clat (usec): min=1084, max=154404, avg=28021.12, stdev=29198.42 lat (usec): min=1087, max=154407, avg=28023.29, stdev=29198.48 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1663], 10.00th=[ 1844], 20.00th=[ 3163], | 30.00th=[ 6259], 40.00th=[ 10552], 50.00th=[ 16712], 60.00th=[ 25822], | 70.00th=[ 39584], 80.00th=[ 49546], 90.00th=[ 71828], 95.00th=[ 92799], | 99.00th=[116917], 99.50th=[124257], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 62, max= 509, per=26.22%, avg=248.04, stdev=93.95, samples=52 iops : min= 3, max= 31, avg=14.77, stdev= 5.89, samples=52 lat (usec) : 50=1.17%, 100=7.16%, 250=0.26% lat (msec) : 2=7.16%, 4=4.95%, 10=8.85%, 20=8.98%, 50=36.33% lat (msec) : 100=21.61%, 250=3.12%, 500=0.39% cpu : usr=0.08%, sys=6.23%, ctx=1411, 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=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=144293: Mon Aug 24 06:42:40 2026 read: IOPS=14, BW=238KiB/s (244kB/s)(6256KiB/26289msec) clat (usec): min=38, max=472503, avg=37265.86, stdev=37040.85 lat (usec): min=38, max=472505, avg=37266.99, stdev=37040.89 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 3195], | 30.00th=[ 21103], 40.00th=[ 25822], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 46924], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[152044], 99.50th=[191890], 99.90th=[471860], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 64, max= 438, per=26.44%, avg=238.00, stdev=89.47, samples=52 iops : min= 4, max= 27, avg=14.15, stdev= 5.68, samples=52 write: IOPS=14, BW=229KiB/s (235kB/s)(6032KiB/26289msec); 0 zone resets clat (usec): min=1124, max=216456, avg=30680.37, stdev=34891.97 lat (usec): min=1126, max=216458, avg=30704.45, stdev=34878.50 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1614], 10.00th=[ 1795], 20.00th=[ 3130], | 30.00th=[ 5538], 40.00th=[ 10683], 50.00th=[ 15926], 60.00th=[ 27395], | 70.00th=[ 40633], 80.00th=[ 53216], 90.00th=[ 78119], 95.00th=[102237], | 99.00th=[154141], 99.50th=[177210], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 62, max= 510, per=24.69%, avg=233.59, stdev=104.06, samples=51 iops : min= 3, max= 31, avg=13.84, stdev= 6.60, samples=51 lat (usec) : 50=1.95%, 100=7.55%, 250=0.52%, 500=0.13% lat (msec) : 2=6.38%, 4=5.34%, 10=7.81%, 20=12.63%, 50=32.81% lat (msec) : 100=20.70%, 250=4.04%, 500=0.13% cpu : usr=0.08%, sys=5.96%, ctx=1396, 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=144294: Mon Aug 24 06:42:40 2026 read: IOPS=14, BW=238KiB/s (244kB/s)(6032KiB/25307msec) clat (usec): min=31, max=216774, avg=35660.54, stdev=31810.76 lat (usec): min=31, max=216774, avg=35663.88, stdev=31809.45 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 81], | 30.00th=[ 19530], 40.00th=[ 26084], 50.00th=[ 33424], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[147850], 99.50th=[193987], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 475, per=26.46%, avg=238.12, stdev=101.65, samples=50 iops : min= 1, max= 29, avg=14.16, stdev= 6.39, samples=50 write: IOPS=15, BW=247KiB/s (253kB/s)(6256KiB/25307msec); 0 zone resets clat (usec): min=1339, max=180732, avg=30117.70, stdev=33231.62 lat (usec): min=1340, max=180736, avg=30135.31, stdev=33220.80 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1631], 10.00th=[ 1860], 20.00th=[ 3916], | 30.00th=[ 6587], 40.00th=[ 10552], 50.00th=[ 18744], 60.00th=[ 27132], | 70.00th=[ 38011], 80.00th=[ 53740], 90.00th=[ 72877], 95.00th=[101188], | 99.00th=[145753], 99.50th=[168821], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 574, per=26.18%, avg=247.62, stdev=102.27, samples=50 iops : min= 1, max= 35, avg=14.74, stdev= 6.41, samples=50 lat (usec) : 50=1.56%, 100=9.51%, 250=0.91%, 500=0.26% lat (msec) : 2=6.25%, 4=4.17%, 10=9.38%, 20=8.72%, 50=34.64% lat (msec) : 100=20.44%, 250=4.17% cpu : usr=0.07%, sys=6.25%, ctx=1360, 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=900KiB/s (922kB/s), 218KiB/s-238KiB/s (223kB/s-244kB/s), io=23.4MiB (24.5MB), run=25307-26611msec WRITE: bw=947KiB/s (970kB/s), 229KiB/s-248KiB/s (235kB/s-254kB/s), io=24.6MiB (25.8MB), run=25307-26611msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144297: Mon Aug 24 06:43:24 2026 read: IOPS=5, BW=85.2KiB/s (87.3kB/s)(5920KiB/69472msec) clat (msec): min=5, max=268, avg=35.69, stdev=32.35 lat (msec): min=5, max=268, avg=35.69, stdev=32.35 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 70], 95.00th=[ 102], | 99.00th=[ 188], 99.50th=[ 192], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 415, per=26.86%, avg=92.41, stdev=61.87, samples=124 iops : min= 1, max= 25, avg= 4.98, stdev= 3.92, samples=124 write: IOPS=5, BW=91.7KiB/s (93.9kB/s)(6368KiB/69472msec); 0 zone resets clat (msec): min=29, max=495, avg=141.21, stdev=68.01 lat (msec): min=29, max=495, avg=141.21, stdev=68.01 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 88], | 30.00th=[ 103], 40.00th=[ 113], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 159], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 266], | 99.00th=[ 439], 99.50th=[ 481], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 28, max= 191, per=25.23%, avg=91.35, stdev=37.84, samples=136 iops : min= 1, max= 11, avg= 4.92, stdev= 2.42, samples=136 lat (msec) : 10=2.34%, 20=13.93%, 50=23.31%, 100=20.31%, 250=36.59% lat (msec) : 500=3.52% cpu : usr=0.05%, sys=1.20%, ctx=1294, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144298: Mon Aug 24 06:43:24 2026 read: IOPS=5, BW=83.6KiB/s (85.6kB/s)(5744KiB/68685msec) clat (msec): min=6, max=283, avg=34.57, stdev=32.80 lat (msec): min=6, max=283, avg=34.57, stdev=32.80 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 71], 95.00th=[ 106], | 99.00th=[ 178], 99.50th=[ 197], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 27, max= 286, per=28.45%, avg=97.87, stdev=61.17, samples=116 iops : min= 1, max= 17, avg= 5.33, stdev= 3.85, samples=116 write: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6544KiB/68685msec); 0 zone resets clat (msec): min=39, max=491, avg=137.43, stdev=59.38 lat (msec): min=39, max=491, avg=137.43, stdev=59.38 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 104], 40.00th=[ 116], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 155], 80.00th=[ 180], 90.00th=[ 207], 95.00th=[ 253], | 99.00th=[ 317], 99.50th=[ 368], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 191, per=26.53%, avg=96.04, stdev=37.92, samples=134 iops : min= 1, max= 11, avg= 5.21, stdev= 2.44, samples=134 lat (msec) : 10=2.08%, 20=14.71%, 50=22.79%, 100=19.01%, 250=38.41% lat (msec) : 500=2.99% cpu : usr=0.04%, sys=1.20%, ctx=1253, 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=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=144299: Mon Aug 24 06:43:24 2026 read: IOPS=5, BW=93.3KiB/s (95.5kB/s)(6256KiB/67066msec) clat (msec): min=7, max=282, avg=34.40, stdev=34.13 lat (msec): min=7, max=282, avg=34.41, stdev=34.13 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 106], | 99.00th=[ 180], 99.50th=[ 279], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 319, per=30.75%, avg=105.78, stdev=73.13, samples=117 iops : min= 1, max= 19, avg= 5.81, stdev= 4.58, samples=117 write: IOPS=5, BW=89.9KiB/s (92.1kB/s)(6032KiB/67066msec); 0 zone resets clat (msec): min=41, max=435, avg=142.06, stdev=61.90 lat (msec): min=41, max=435, avg=142.07, stdev=61.90 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 68], 10.00th=[ 81], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 116], 50.00th=[ 131], 60.00th=[ 142], | 70.00th=[ 159], 80.00th=[ 188], 90.00th=[ 228], 95.00th=[ 257], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 192, per=24.69%, avg=89.36, stdev=36.84, samples=133 iops : min= 1, max= 12, avg= 4.79, stdev= 2.41, samples=133 lat (msec) : 10=2.08%, 20=17.19%, 50=23.96%, 100=19.92%, 250=33.72% lat (msec) : 500=3.12% cpu : usr=0.05%, sys=1.12%, ctx=1313, 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=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=144300: Mon Aug 24 06:43:24 2026 read: IOPS=5, BW=87.1KiB/s (89.2kB/s)(6032KiB/69245msec) clat (msec): min=6, max=340, avg=37.71, stdev=38.97 lat (msec): min=6, max=340, avg=37.71, stdev=38.97 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 124], | 99.00th=[ 194], 99.50th=[ 213], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 319, per=28.12%, avg=96.73, stdev=63.08, samples=122 iops : min= 1, max= 19, avg= 5.25, stdev= 3.95, samples=122 write: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6256KiB/69245msec); 0 zone resets clat (msec): min=47, max=432, avg=140.64, stdev=58.29 lat (msec): min=47, max=432, avg=140.65, stdev=58.29 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 92], | 30.00th=[ 107], 40.00th=[ 118], 50.00th=[ 130], 60.00th=[ 146], | 70.00th=[ 159], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 309], 99.50th=[ 384], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 29, max= 191, per=25.16%, avg=91.08, stdev=37.43, samples=135 iops : min= 1, max= 11, avg= 4.90, stdev= 2.41, samples=135 lat (msec) : 10=2.47%, 20=14.97%, 50=22.27%, 100=18.75%, 250=37.89% lat (msec) : 500=3.65% cpu : usr=0.03%, sys=1.12%, ctx=1311, 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=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=345KiB/s (353kB/s), 83.6KiB/s-93.3KiB/s (85.6kB/s-95.5kB/s), io=23.4MiB (24.5MB), run=67066-69472msec WRITE: bw=363KiB/s (371kB/s), 89.9KiB/s-95.3KiB/s (92.1kB/s-97.6kB/s), io=24.6MiB (25.8MB), run=67066-69472msec 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=144322: Mon Aug 24 06:43:40 2026 read: IOPS=2, BW=2494KiB/s (2554kB/s)(7168KiB/2874msec) clat (msec): min=122, max=322, avg=173.75, stdev=70.37 lat (msec): min=122, max=322, avg=173.75, stdev=70.37 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 132], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 144], 60.00th=[ 165], | 70.00th=[ 165], 80.00th=[ 201], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1946, max= 4491, per=86.08%, avg=3416.67, stdev=1317.98, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1781KiB/s (1824kB/s)(5120KiB/2874msec); 0 zone resets clat (msec): min=209, max=397, avg=323.10, stdev=75.33 lat (msec): min=209, max=397, avg=323.18, stdev=75.33 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 1497, max= 4096, per=42.98%, avg=2388.50, stdev=1161.27, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 250=58.33%, 500=41.67% cpu : usr=0.00%, sys=5.50%, ctx=71, 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=144323: Mon Aug 24 06:43:40 2026 read: IOPS=0, BW=397KiB/s (407kB/s)(2048KiB/5159msec) clat (msec): min=123, max=167, avg=145.81, stdev=31.22 lat (msec): min=123, max=167, avg=145.81, stdev=31.21 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 1381, max= 1946, per=41.91%, avg=1663.50, stdev=399.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1985KiB/s (2033kB/s)(10.0MiB/5159msec); 0 zone resets clat (msec): min=199, max=1103, avg=462.22, stdev=265.98 lat (msec): min=200, max=1103, avg=462.56, stdev=266.10 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 230], | 30.00th=[ 234], 40.00th=[ 313], 50.00th=[ 409], 60.00th=[ 481], | 70.00th=[ 523], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1906, max= 4079, per=54.18%, avg=3010.83, stdev=1144.86, samples=6 iops : min= 1, max= 3, avg= 2.17, stdev= 0.98, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.02%, sys=3.94%, ctx=71, 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=144324: Mon Aug 24 06:43:40 2026 read: IOPS=1, BW=1330KiB/s (1362kB/s)(6144KiB/4620msec) clat (msec): min=109, max=767, avg=267.41, stdev=247.60 lat (msec): min=109, max=767, avg=267.41, stdev=247.60 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 201], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 2027, max= 4096, per=64.23%, avg=2549.25, stdev=1031.18, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1330KiB/s (1362kB/s)(6144KiB/4620msec); 0 zone resets clat (msec): min=252, max=979, avg=469.26, stdev=264.71 lat (msec): min=252, max=980, avg=469.36, stdev=264.70 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 426], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1946, max= 2730, per=39.22%, avg=2179.50, stdev=368.73, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 1000=16.67% cpu : usr=0.00%, sys=3.57%, ctx=56, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144325: Mon Aug 24 06:43:40 2026 read: IOPS=0, BW=1001KiB/s (1025kB/s)(5120KiB/5117msec) clat (msec): min=153, max=567, avg=315.21, stdev=152.52 lat (msec): min=153, max=567, avg=315.21, stdev=152.52 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2035, max= 3893, per=66.91%, avg=2655.67, stdev=1071.56, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1401KiB/s (1434kB/s)(7168KiB/5117msec); 0 zone resets clat (msec): min=245, max=721, avg=499.67, stdev=197.87 lat (msec): min=245, max=721, avg=499.87, stdev=197.82 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 351], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 430], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 701], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1385, max= 2048, per=34.25%, avg=1903.33, stdev=259.14, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 250=16.67%, 500=50.00%, 750=33.33% cpu : usr=0.00%, sys=1.94%, ctx=52, 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=3970KiB/s (4065kB/s), 397KiB/s-2494KiB/s (407kB/s-2554kB/s), io=20.0MiB (20.0MB), run=2874-5159msec WRITE: bw=5558KiB/s (5691kB/s), 1330KiB/s-1985KiB/s (1362kB/s-2033kB/s), io=28.0MiB (29.4MB), run=2874-5159msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144327: Mon Aug 24 06:43:41 2026 read: IOPS=1, BW=2031KiB/s (2079kB/s)(7168KiB/3530msec) clat (usec): min=464, max=561162, avg=300684.37, stdev=174286.14 lat (usec): min=465, max=561163, avg=300685.71, stdev=174286.07 clat percentiles (usec): | 1.00th=[ 465], 5.00th=[ 465], 10.00th=[ 465], 20.00th=[221250], | 30.00th=[267387], 40.00th=[267387], 50.00th=[291505], 60.00th=[341836], | 70.00th=[341836], 80.00th=[425722], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1551, max= 3953, per=60.84%, avg=2400.00, stdev=1061.51, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1450KiB/s (1485kB/s)(5120KiB/3530msec); 0 zone resets clat (msec): min=171, max=286, avg=246.92, stdev=45.91 lat (msec): min=171, max=286, avg=247.01, stdev=45.90 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1976, max= 3976, per=48.28%, avg=2666.67, stdev=1134.49, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=8.33% lat (msec) : 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.06%, sys=15.05%, ctx=215, 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=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=144328: Mon Aug 24 06:43:41 2026 read: IOPS=0, BW=396KiB/s (406kB/s)(2048KiB/5169msec) clat (msec): min=192, max=366, avg=279.43, stdev=122.62 lat (msec): min=192, max=366, avg=279.43, stdev=122.61 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 1542, max= 1976, per=44.59%, avg=1759.00, stdev=306.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1981KiB/s (2029kB/s)(10.0MiB/5169msec); 0 zone resets clat (msec): min=198, max=802, avg=454.67, stdev=196.86 lat (msec): min=198, max=802, avg=454.74, stdev=196.87 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 211], | 30.00th=[ 239], 40.00th=[ 435], 50.00th=[ 439], 60.00th=[ 456], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 600], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1976, max= 4096, per=55.15%, avg=3045.83, stdev=1141.57, samples=6 iops : min= 1, max= 4, avg= 2.50, stdev= 1.38, samples=6 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=10.78%, ctx=136, 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=144329: Mon Aug 24 06:43:41 2026 read: IOPS=1, BW=1613KiB/s (1652kB/s)(6144KiB/3808msec) clat (usec): min=955, max=481629, avg=214761.59, stdev=199045.60 lat (usec): min=957, max=481630, avg=214762.80, stdev=199045.49 clat percentiles (usec): | 1.00th=[ 955], 5.00th=[ 955], 10.00th=[ 955], 20.00th=[ 1549], | 30.00th=[ 1549], 40.00th=[185598], 50.00th=[185598], 60.00th=[219153], | 70.00th=[400557], 80.00th=[400557], 90.00th=[480248], 95.00th=[480248], | 99.00th=[480248], 99.50th=[480248], 99.90th=[480248], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 1973, max= 3976, per=62.74%, avg=2475.25, stdev=1000.50, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1613KiB/s (1652kB/s)(6144KiB/3808msec); 0 zone resets clat (msec): min=102, max=1259, avg=376.45, stdev=436.95 lat (msec): min=103, max=1259, avg=376.67, stdev=436.87 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 234], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1643, max= 3946, per=42.01%, avg=2320.20, stdev=922.60, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=50.00%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.88%, ctx=112, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144330: Mon Aug 24 06:43:41 2026 read: IOPS=0, BW=986KiB/s (1010kB/s)(5120KiB/5191msec) clat (usec): min=468, max=366848, avg=177086.38, stdev=168162.81 lat (usec): min=469, max=366849, avg=177087.47, stdev=168162.72 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[ 545], 40.00th=[ 545], 50.00th=[231736], 60.00th=[231736], | 70.00th=[283116], 80.00th=[283116], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 3946, max= 3953, per=100.00%, avg=3949.50, stdev= 4.95, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1381KiB/s (1414kB/s)(7168KiB/5191msec); 0 zone resets clat (msec): min=230, max=1244, avg=577.25, stdev=353.72 lat (msec): min=230, max=1244, avg=577.32, stdev=353.72 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 279], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 527], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 768], 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= 1622, max= 3976, per=42.21%, avg=2331.40, stdev=935.74, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=16.67%, 500=33.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=7.40%, ctx=150, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3945KiB/s (4040kB/s), 396KiB/s-2031KiB/s (406kB/s-2079kB/s), io=20.0MiB (20.0MB), run=3530-5191msec WRITE: bw=5523KiB/s (5656kB/s), 1381KiB/s-1981KiB/s (1414kB/s-2029kB/s), io=28.0MiB (29.4MB), run=3530-5191msec 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=144338: Mon Aug 24 06:43:58 2026 read: IOPS=0, BW=3584KiB/s (3670kB/s)(12.0MiB/3429msec) clat (msec): min=640, max=1731, avg=1115.24, stdev=559.14 lat (msec): min=640, max=1731, avg=1115.24, stdev=559.15 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.03%, ctx=38, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144339: Mon Aug 24 06:43:58 2026 read: IOPS=0, BW=1885KiB/s (1930kB/s)(4096KiB/2173msec) clat (nsec): min=374200k, max=374200k, avg=374199874.00, stdev= 0.00 lat (nsec): min=374204k, max=374204k, avg=374203850.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 5610, max= 5610, per=100.00%, avg=5610.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3770KiB/s (3860kB/s)(8192KiB/2173msec); 0 zone resets clat (msec): min=605, max=1004, avg=804.99, stdev=282.46 lat (msec): min=605, max=1005, avg=805.35, stdev=282.41 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8175, max= 8175, per=77.14%, avg=8175.00, 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=5.94%, ctx=60, 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=144340: Mon Aug 24 06:43:58 2026 write: IOPS=1, BW=5959KiB/s (6102kB/s)(12.0MiB/2062msec); 0 zone resets clat (msec): min=407, max=937, avg=646.77, stdev=268.94 lat (msec): min=408, max=938, avg=647.59, stdev=268.55 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8175, max= 8175, per=77.14%, avg=8175.00, 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%, 1000=33.33% cpu : usr=0.10%, sys=5.73%, ctx=53, 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=144341: Mon Aug 24 06:43:58 2026 write: IOPS=0, BW=3974KiB/s (4070kB/s)(12.0MiB/3092msec); 0 zone resets clat (msec): min=445, max=2035, avg=982.03, stdev=912.65 lat (msec): min=445, max=2036, avg=983.32, stdev=911.73 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 6068, max= 8175, per=67.20%, avg=7121.50, stdev=1489.87, 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=0.00%, sys=3.43%, ctx=63, 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=4778KiB/s (4893kB/s), 1885KiB/s-3584KiB/s (1930kB/s-3670kB/s), io=16.0MiB (16.8MB), run=2173-3429msec WRITE: bw=10.3MiB/s (10.9MB/s), 3770KiB/s-5959KiB/s (3860kB/s-6102kB/s), io=32.0MiB (33.6MB), run=2062-3092msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144342: Mon Aug 24 06:43:59 2026 read: IOPS=0, BW=3826KiB/s (3917kB/s)(12.0MiB/3212msec) clat (msec): min=703, max=1199, avg=962.61, stdev=248.87 lat (msec): min=703, max=1199, avg=962.61, stdev=248.87 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 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= 7984, max= 8159, per=100.00%, avg=8071.50, stdev=123.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.03%, sys=10.12%, ctx=225, 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=144343: Mon Aug 24 06:43:59 2026 read: IOPS=0, BW=1030KiB/s (1054kB/s)(4096KiB/3978msec) clat (nsec): min=1170.2M, max=1170.2M, avg=1170227400.00, stdev= 0.00 lat (nsec): min=1170.2M, max=1170.2M, avg=1170230132.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2059KiB/s (2109kB/s)(8192KiB/3978msec); 0 zone resets clat (msec): min=909, max=1543, avg=1226.39, stdev=448.44 lat (msec): min=909, max=1543, avg=1226.87, stdev=448.39 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7984, max= 7984, per=98.96%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.25%, ctx=110, 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=144344: Mon Aug 24 06:43:59 2026 write: IOPS=0, BW=3026KiB/s (3098kB/s)(12.0MiB/4061msec); 0 zone resets clat (msec): min=400, max=2349, avg=1324.27, stdev=978.42 lat (msec): min=400, max=2350, avg=1324.70, stdev=978.54 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7984, max= 8078, per=99.54%, avg=8031.00, 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=3.45%, ctx=74, 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=144345: Mon Aug 24 06:43:59 2026 write: IOPS=0, BW=3448KiB/s (3531kB/s)(12.0MiB/3564msec); 0 zone resets clat (msec): min=338, max=1906, avg=1055.90, stdev=792.92 lat (msec): min=338, max=1907, avg=1056.28, stdev=792.91 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.04%, ctx=62, 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=4119KiB/s (4218kB/s), 1030KiB/s-3826KiB/s (1054kB/s-3917kB/s), io=16.0MiB (16.8MB), run=3212-3978msec WRITE: bw=8069KiB/s (8263kB/s), 2059KiB/s-3448KiB/s (2109kB/s-3531kB/s), io=32.0MiB (33.6MB), run=3564-4061msec