== sanity test 398b: DIO and buffer IO race ============== 04:13:58 (1787127238) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.18096 s, 6.2 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=144583: Wed Aug 19 04:16:26 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5992KiB/126661msec) clat (usec): min=34, max=439087, avg=40720.07, stdev=33224.64 lat (usec): min=35, max=439088, avg=40724.26, stdev=33225.68 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 109], 20.00th=[ 18220], | 30.00th=[ 24249], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 50070], 80.00th=[ 60556], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[147850], 99.50th=[185598], 99.90th=[350225], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 111, per=25.15%, avg=47.54, stdev=18.94, samples=244 iops : min= 1, max= 27, avg=11.23, stdev= 4.77, samples=244 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6296KiB/126661msec); 0 zone resets clat (usec): min=1119, max=1357.6k, avg=41435.78, stdev=52264.68 lat (usec): min=1119, max=1357.6k, avg=41437.86, stdev=52265.37 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1385], 10.00th=[ 2073], | 20.00th=[ 4817], 30.00th=[ 8848], 40.00th=[ 20317], | 50.00th=[ 31327], 60.00th=[ 42206], 70.00th=[ 53740], | 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[ 113771], | 99.00th=[ 168821], 99.50th=[ 229639], 99.90th=[ 362808], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 7, max= 134, per=24.88%, avg=49.27, stdev=20.89, samples=248 iops : min= 1, max= 33, avg=11.66, stdev= 5.26, samples=248 lat (usec) : 50=0.52%, 100=4.26%, 250=0.36%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.03% lat (msec) : 2=4.92%, 4=4.26%, 10=7.26%, 20=9.51%, 50=36.88% lat (msec) : 100=25.91%, 250=5.63%, 500=0.26%, 2000=0.03% cpu : usr=0.07%, sys=5.15%, ctx=6703, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144584: Wed Aug 19 04:16:26 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5940KiB/125140msec) clat (usec): min=30, max=360532, avg=41367.38, stdev=31807.17 lat (usec): min=30, max=360534, avg=41369.07, stdev=31807.51 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 996], 20.00th=[ 19792], | 30.00th=[ 24773], 40.00th=[ 29492], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 50070], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[175113], 99.90th=[278922], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 111, per=25.04%, avg=47.32, stdev=19.58, samples=245 iops : min= 1, max= 27, avg=11.16, stdev= 4.93, samples=245 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6348KiB/125140msec); 0 zone resets clat (usec): min=1154, max=1216.8k, avg=39849.74, stdev=49877.85 lat (usec): min=1155, max=1216.8k, avg=39856.16, stdev=49883.46 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1401], 10.00th=[ 2147], | 20.00th=[ 4883], 30.00th=[ 8586], 40.00th=[ 19530], | 50.00th=[ 30540], 60.00th=[ 39060], 70.00th=[ 51643], | 80.00th=[ 65799], 90.00th=[ 90702], 95.00th=[ 110625], | 99.00th=[ 158335], 99.50th=[ 210764], 99.90th=[ 549454], | 99.95th=[1216349], 99.99th=[1216349] bw ( KiB/s): min= 6, max= 110, per=25.57%, avg=50.63, stdev=21.20, samples=245 iops : min= 1, max= 27, avg=11.99, stdev= 5.34, samples=245 lat (usec) : 50=0.65%, 100=3.78%, 250=0.26%, 500=0.13%, 1000=0.03% lat (msec) : 2=4.88%, 4=4.13%, 10=8.07%, 20=8.79%, 50=38.25% lat (msec) : 100=25.23%, 250=5.57%, 500=0.16%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=5.19%, ctx=6609, 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=144585: Wed Aug 19 04:16:26 2026 read: IOPS=11, BW=47.6KiB/s (48.8kB/s)(6028KiB/126565msec) clat (usec): min=30, max=364499, avg=41018.98, stdev=29909.31 lat (usec): min=30, max=364500, avg=41022.57, stdev=29910.09 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 10552], 20.00th=[ 20055], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[139461], 99.50th=[168821], 99.90th=[238027], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 6, max= 127, per=25.25%, avg=47.72, stdev=19.90, samples=247 iops : min= 1, max= 31, avg=11.26, stdev= 5.02, samples=247 write: IOPS=12, BW=49.5KiB/s (50.6kB/s)(6260KiB/126565msec); 0 zone resets clat (usec): min=1155, max=1298.5k, avg=41084.36, stdev=51757.24 lat (usec): min=1156, max=1298.5k, avg=41086.59, stdev=51756.72 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1434], 10.00th=[ 2245], | 20.00th=[ 5407], 30.00th=[ 9896], 40.00th=[ 20055], | 50.00th=[ 30278], 60.00th=[ 40109], 70.00th=[ 53740], | 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[ 112722], | 99.00th=[ 162530], 99.50th=[ 233833], 99.90th=[ 367002], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 7, max= 108, per=24.89%, avg=49.29, stdev=19.98, samples=248 iops : min= 1, max= 27, avg=11.66, stdev= 5.06, samples=248 lat (usec) : 50=0.55%, 100=3.29%, 250=0.49%, 500=0.10%, 750=0.03% lat (msec) : 2=4.79%, 4=3.45%, 10=7.49%, 20=9.73%, 50=38.77% lat (msec) : 100=25.65%, 250=5.40%, 500=0.23%, 2000=0.03% cpu : usr=0.08%, sys=5.04%, ctx=6613, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144586: Wed Aug 19 04:16:26 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6052KiB/125822msec) clat (usec): min=30, max=557505, avg=40484.27, stdev=32883.30 lat (usec): min=30, max=557507, avg=40487.56, stdev=32885.09 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 98], 20.00th=[ 18482], | 30.00th=[ 23462], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[137364], 99.50th=[166724], 99.90th=[270533], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 7, max= 119, per=25.47%, avg=48.13, stdev=21.49, samples=245 iops : min= 1, max= 29, avg=11.37, stdev= 5.41, samples=245 write: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6236KiB/125822msec); 0 zone resets clat (usec): min=1162, max=1224.9k, avg=41165.49, stdev=49143.36 lat (usec): min=1162, max=1224.9k, avg=41168.38, stdev=49142.64 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1434], 10.00th=[ 2212], | 20.00th=[ 4948], 30.00th=[ 9372], 40.00th=[ 19792], | 50.00th=[ 32375], 60.00th=[ 42730], 70.00th=[ 55313], | 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[ 111674], | 99.00th=[ 173016], 99.50th=[ 193987], 99.90th=[ 278922], | 99.95th=[1233126], 99.99th=[1233126] bw ( KiB/s): min= 6, max= 135, per=24.92%, avg=49.34, stdev=20.89, samples=246 iops : min= 1, max= 33, avg=11.67, stdev= 5.25, samples=246 lat (usec) : 50=0.94%, 100=4.00%, 250=0.33%, 500=0.07%, 750=0.03% lat (msec) : 2=4.30%, 4=4.56%, 10=7.32%, 20=9.93%, 50=36.88% lat (msec) : 100=25.36%, 250=6.12%, 500=0.10%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=5.22%, ctx=6672, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=190KiB/s (194kB/s), 47.3KiB/s-48.1KiB/s (48.4kB/s-49.3kB/s), io=23.4MiB (24.6MB), run=125140-126661msec WRITE: bw=198KiB/s (203kB/s), 49.5KiB/s-50.7KiB/s (50.6kB/s-51.9kB/s), io=24.6MiB (25.7MB), run=125140-126661msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144588: Wed Aug 19 04:18:29 2026 read: IOPS=6, BW=24.1KiB/s (24.6kB/s)(5992KiB/249010msec) clat (msec): min=6, max=1461, avg=34.23, stdev=51.38 lat (msec): min=6, max=1461, avg=34.23, stdev=51.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 44], 90.00th=[ 77], 95.00th=[ 101], | 99.00th=[ 165], 99.50th=[ 257], 99.90th=[ 380], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 95, per=27.64%, avg=26.54, stdev=18.35, samples=437 iops : min= 1, max= 23, avg= 6.00, stdev= 4.61, samples=437 write: IOPS=6, BW=25.3KiB/s (25.9kB/s)(6296KiB/249010msec); 0 zone resets clat (msec): min=35, max=696, avg=125.54, stdev=65.40 lat (msec): min=35, max=696, avg=125.54, stdev=65.40 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 108], 60.00th=[ 122], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 209], 95.00th=[ 249], | 99.00th=[ 342], 99.50th=[ 422], 99.90th=[ 625], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 56, per=24.99%, avg=24.99, stdev=11.60, samples=486 iops : min= 1, max= 14, avg= 5.61, stdev= 2.96, samples=486 lat (msec) : 10=4.26%, 20=18.33%, 50=19.04%, 100=25.91%, 250=29.65% lat (msec) : 500=2.64%, 750=0.13%, 2000=0.03% cpu : usr=0.05%, sys=1.31%, 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=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=144589: Wed Aug 19 04:18:29 2026 read: IOPS=5, BW=23.8KiB/s (24.4kB/s)(5940KiB/249305msec) clat (msec): min=5, max=1316, avg=33.24, stdev=47.27 lat (msec): min=5, max=1316, avg=33.24, stdev=47.27 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 71], 95.00th=[ 100], | 99.00th=[ 174], 99.50th=[ 239], 99.90th=[ 376], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 96, per=28.05%, avg=26.93, stdev=18.40, samples=427 iops : min= 1, max= 24, avg= 6.10, stdev= 4.66, samples=427 write: IOPS=6, BW=25.5KiB/s (26.1kB/s)(6348KiB/249305msec); 0 zone resets clat (msec): min=34, max=535, avg=125.90, stdev=63.50 lat (msec): min=34, max=535, avg=125.91, stdev=63.50 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 211], 95.00th=[ 249], | 99.00th=[ 359], 99.50th=[ 397], 99.90th=[ 531], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 7, max= 56, per=25.18%, avg=25.18, stdev=11.60, samples=487 iops : min= 1, max= 14, avg= 5.66, stdev= 2.95, samples=487 lat (msec) : 10=4.46%, 20=19.30%, 50=17.32%, 100=26.79%, 250=29.52% lat (msec) : 500=2.51%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.30%, ctx=5160, 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=144590: Wed Aug 19 04:18:29 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6028KiB/248070msec) clat (msec): min=5, max=462, avg=35.02, stdev=39.17 lat (msec): min=5, max=462, avg=35.02, stdev=39.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 48], 90.00th=[ 77], 95.00th=[ 101], | 99.00th=[ 203], 99.50th=[ 245], 99.90th=[ 397], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 103, per=26.59%, avg=25.52, stdev=17.77, samples=456 iops : min= 1, max= 25, avg= 5.75, stdev= 4.46, samples=456 write: IOPS=6, BW=25.2KiB/s (25.8kB/s)(6260KiB/248070msec); 0 zone resets clat (msec): min=38, max=1460, avg=124.69, stdev=68.39 lat (msec): min=38, max=1460, avg=124.69, stdev=68.39 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 109], 60.00th=[ 121], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 205], 95.00th=[ 241], | 99.00th=[ 338], 99.50th=[ 372], 99.90th=[ 514], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 64, per=25.11%, avg=25.11, stdev=11.71, samples=481 iops : min= 1, max= 16, avg= 5.64, stdev= 2.99, samples=481 lat (msec) : 10=3.29%, 20=18.95%, 50=18.39%, 100=26.76%, 250=30.34% lat (msec) : 500=2.18%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.39%, ctx=5186, 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=144591: Wed Aug 19 04:18:29 2026 read: IOPS=6, BW=24.4KiB/s (24.0kB/s)(6052KiB/248134msec) clat (msec): min=5, max=462, avg=33.89, stdev=37.85 lat (msec): min=5, max=462, avg=33.89, stdev=37.85 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 75], 95.00th=[ 106], | 99.00th=[ 188], 99.50th=[ 236], 99.90th=[ 414], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 96, per=28.08%, avg=26.96, stdev=18.29, samples=434 iops : min= 1, max= 24, avg= 6.11, stdev= 4.63, samples=434 write: IOPS=6, BW=25.1KiB/s (25.7kB/s)(6236KiB/248134msec); 0 zone resets clat (msec): min=35, max=1459, avg=126.18, stdev=71.90 lat (msec): min=35, max=1459, avg=126.18, stdev=71.90 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 122], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 245], | 99.00th=[ 330], 99.50th=[ 439], 99.90th=[ 676], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 64, per=24.84%, avg=24.84, stdev=11.67, samples=484 iops : min= 1, max= 16, avg= 5.57, stdev= 2.97, samples=484 lat (msec) : 10=4.07%, 20=19.34%, 50=18.07%, 100=25.78%, 250=30.14% lat (msec) : 500=2.44%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5283, 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=96.3KiB/s (98.6kB/s), 23.8KiB/s-24.4KiB/s (24.4kB/s-24.0kB/s), io=23.4MiB (24.6MB), run=248070-249305msec WRITE: bw=101KiB/s (103kB/s), 25.1KiB/s-25.5KiB/s (25.7kB/s-26.1kB/s), io=24.6MiB (25.7MB), run=248070-249305msec 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=144650: Wed Aug 19 04:19:07 2026 read: IOPS=12, BW=205KiB/s (210kB/s)(5920KiB/28854msec) clat (usec): min=35, max=172114, avg=36391.56, stdev=30310.89 lat (usec): min=35, max=172115, avg=36395.80, stdev=30307.54 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 65], 20.00th=[ 99], | 30.00th=[ 20841], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 58983], 90.00th=[ 71828], 95.00th=[ 90702], | 99.00th=[128451], 99.50th=[164627], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 62, max= 440, per=24.44%, avg=202.88, stdev=86.18, samples=56 iops : min= 3, max= 27, avg=11.89, stdev= 5.46, samples=56 write: IOPS=13, BW=221KiB/s (226kB/s)(6368KiB/28854msec); 0 zone resets clat (usec): min=1667, max=200455, avg=38444.27, stdev=35504.77 lat (usec): min=1670, max=200457, avg=38450.68, stdev=35500.95 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2802], 10.00th=[ 4359], 20.00th=[ 7242], | 30.00th=[ 11338], 40.00th=[ 18482], 50.00th=[ 28967], 60.00th=[ 38536], | 70.00th=[ 50594], 80.00th=[ 66323], 90.00th=[ 91751], 95.00th=[109577], | 99.00th=[141558], 99.50th=[189793], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 407, per=25.27%, avg=220.57, stdev=84.22, samples=56 iops : min= 1, max= 25, avg=13.00, stdev= 5.30, samples=56 lat (usec) : 50=1.69%, 100=8.07%, 250=1.82%, 500=0.13% lat (msec) : 2=1.17%, 4=3.26%, 10=9.64%, 20=9.77%, 50=34.77% lat (msec) : 100=24.74%, 250=4.95% cpu : usr=0.07%, sys=5.59%, ctx=1496, 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=144651: Wed Aug 19 04:19:07 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5744KiB/27820msec) clat (usec): min=36, max=150308, avg=38535.64, stdev=30086.06 lat (usec): min=36, max=150309, avg=38536.77, stdev=30086.03 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 65], 20.00th=[ 229], | 30.00th=[ 22676], 40.00th=[ 29230], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 61080], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[131597], 99.50th=[145753], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 30, max= 414, per=24.75%, avg=205.43, stdev=86.86, samples=54 iops : min= 1, max= 25, avg=12.04, stdev= 5.48, samples=54 write: IOPS=14, BW=235KiB/s (241kB/s)(6544KiB/27820msec); 0 zone resets clat (usec): min=1427, max=265818, avg=33677.76, stdev=37782.10 lat (usec): min=1428, max=265820, avg=33679.90, stdev=37782.07 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2147], 10.00th=[ 3359], 20.00th=[ 6128], | 30.00th=[ 8586], 40.00th=[ 10945], 50.00th=[ 17695], 60.00th=[ 29492], | 70.00th=[ 41681], 80.00th=[ 61080], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[175113], 99.50th=[206570], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 90, max= 501, per=26.58%, avg=232.02, stdev=80.73, samples=54 iops : min= 5, max= 31, avg=13.74, stdev= 5.13, samples=54 lat (usec) : 50=0.52%, 100=7.94%, 250=0.91%, 500=0.52% lat (msec) : 2=2.34%, 4=4.30%, 10=13.41%, 20=11.07%, 50=30.21% lat (msec) : 100=24.61%, 250=4.04%, 500=0.13% cpu : usr=0.07%, sys=5.98%, ctx=1535, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144652: Wed Aug 19 04:19:07 2026 read: IOPS=14, BW=229KiB/s (235kB/s)(6256KiB/27261msec) clat (usec): min=35, max=177342, avg=37657.35, stdev=31870.09 lat (usec): min=35, max=177344, avg=37663.47, stdev=31873.73 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 99], | 30.00th=[ 22414], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 98042], | 99.00th=[149947], 99.50th=[173016], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 62, max= 477, per=28.42%, avg=235.87, stdev=81.78, samples=52 iops : min= 3, max= 29, avg=13.96, stdev= 5.14, samples=52 write: IOPS=13, BW=221KiB/s (227kB/s)(6032KiB/27261msec); 0 zone resets clat (usec): min=1602, max=221439, avg=32668.85, stdev=33702.90 lat (usec): min=1604, max=221442, avg=32678.72, stdev=33702.85 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2008], 10.00th=[ 2769], 20.00th=[ 5342], | 30.00th=[ 8717], 40.00th=[ 12518], 50.00th=[ 19792], 60.00th=[ 30278], | 70.00th=[ 42206], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[126354], 99.50th=[208667], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 29, max= 382, per=25.06%, avg=218.75, stdev=84.69, samples=53 iops : min= 1, max= 23, avg=12.89, stdev= 5.32, samples=53 lat (usec) : 50=1.30%, 100=8.98%, 250=0.91%, 750=0.26%, 1000=0.13% lat (msec) : 2=2.34%, 4=5.08%, 10=9.64%, 20=9.77%, 50=35.29% lat (msec) : 100=21.74%, 250=4.56% cpu : usr=0.10%, sys=6.06%, ctx=1558, 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=144653: Wed Aug 19 04:19:07 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(6032KiB/28463msec) clat (usec): min=37, max=184792, avg=36989.17, stdev=31348.02 lat (usec): min=37, max=184793, avg=36990.34, stdev=31348.00 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 92], | 30.00th=[ 21103], 40.00th=[ 28181], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 58983], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[130548], 99.50th=[160433], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 479, per=25.87%, avg=214.73, stdev=96.61, samples=55 iops : min= 1, max= 29, avg=12.62, stdev= 6.09, samples=55 write: IOPS=13, BW=220KiB/s (225kB/s)(6256KiB/28463msec); 0 zone resets clat (usec): min=1584, max=287698, avg=36549.19, stdev=38582.11 lat (usec): min=1586, max=287701, avg=36570.75, stdev=38567.33 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2278], 10.00th=[ 3195], 20.00th=[ 6259], | 30.00th=[ 10290], 40.00th=[ 15139], 50.00th=[ 22938], 60.00th=[ 35914], | 70.00th=[ 48497], 80.00th=[ 61604], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[206570], 99.50th=[235930], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 61, max= 414, per=25.26%, avg=220.48, stdev=77.81, samples=56 iops : min= 3, max= 25, avg=13.00, stdev= 4.89, samples=56 lat (usec) : 50=1.30%, 100=8.72%, 250=0.91%, 500=0.52%, 750=0.26% lat (msec) : 2=2.08%, 4=4.30%, 10=8.85%, 20=10.81%, 50=34.11% lat (msec) : 100=23.05%, 250=4.95%, 500=0.13% cpu : usr=0.07%, sys=5.96%, ctx=1572, 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=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=830KiB/s (850kB/s), 205KiB/s-229KiB/s (210kB/s-235kB/s), io=23.4MiB (24.5MB), run=27261-28854msec WRITE: bw=873KiB/s (894kB/s), 220KiB/s-235KiB/s (225kB/s-241kB/s), io=24.6MiB (25.8MB), run=27261-28854msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144646: Wed Aug 19 04:19:52 2026 read: IOPS=5, BW=80.0KiB/s (82.9kB/s)(5920KiB/73098msec) clat (msec): min=6, max=265, avg=41.82, stdev=39.35 lat (msec): min=6, max=265, avg=41.82, stdev=39.35 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 40], 80.00th=[ 52], 90.00th=[ 88], 95.00th=[ 138], | 99.00th=[ 218], 99.50th=[ 241], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 30, max= 288, per=27.71%, avg=89.50, stdev=53.05, samples=129 iops : min= 1, max= 18, avg= 4.82, stdev= 3.39, samples=129 write: IOPS=5, BW=87.1KiB/s (89.2kB/s)(6368KiB/73098msec); 0 zone resets clat (msec): min=42, max=438, avg=144.42, stdev=62.30 lat (msec): min=42, max=438, avg=144.42, stdev=62.30 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 77], 20.00th=[ 92], | 30.00th=[ 106], 40.00th=[ 121], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 232], 95.00th=[ 259], | 99.00th=[ 326], 99.50th=[ 397], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 29, max= 255, per=25.63%, avg=87.15, stdev=38.91, samples=143 iops : min= 1, max= 15, avg= 4.69, stdev= 2.52, samples=143 lat (msec) : 10=0.91%, 20=10.81%, 50=26.56%, 100=19.01%, 250=39.32% lat (msec) : 500=3.39% cpu : usr=0.04%, sys=1.36%, ctx=1340, 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=144647: Wed Aug 19 04:19:52 2026 read: IOPS=4, BW=77.7KiB/s (79.5kB/s)(5744KiB/73954msec) clat (msec): min=7, max=269, avg=44.94, stdev=42.79 lat (msec): min=7, max=269, avg=44.94, stdev=42.79 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 100], 95.00th=[ 146], | 99.00th=[ 222], 99.50th=[ 249], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 255, per=27.08%, avg=87.47, stdev=53.73, samples=128 iops : min= 1, max= 15, avg= 4.71, stdev= 3.39, samples=128 write: IOPS=5, BW=88.5KiB/s (90.6kB/s)(6544KiB/73954msec); 0 zone resets clat (msec): min=34, max=391, avg=141.26, stdev=56.21 lat (msec): min=34, max=391, avg=141.26, stdev=56.21 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 90], | 30.00th=[ 107], 40.00th=[ 118], 50.00th=[ 132], 60.00th=[ 150], | 70.00th=[ 169], 80.00th=[ 190], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 342], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 30, max= 191, per=25.99%, avg=88.35, stdev=35.83, samples=145 iops : min= 1, max= 11, avg= 4.77, stdev= 2.32, samples=145 lat (msec) : 10=1.82%, 20=10.42%, 50=23.83%, 100=19.66%, 250=42.58% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.30%, ctx=1303, 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=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=144648: Wed Aug 19 04:19:52 2026 read: IOPS=5, BW=87.9KiB/s (90.0kB/s)(6256KiB/71179msec) clat (msec): min=9, max=282, avg=40.40, stdev=38.06 lat (msec): min=9, max=282, avg=40.41, stdev=38.07 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 52], 90.00th=[ 86], 95.00th=[ 122], | 99.00th=[ 188], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 30, max= 318, per=29.64%, avg=95.74, stdev=63.33, samples=129 iops : min= 1, max= 19, avg= 5.22, stdev= 4.01, samples=129 write: IOPS=5, BW=84.7KiB/s (86.8kB/s)(6032KiB/71179msec); 0 zone resets clat (msec): min=26, max=360, avg=146.48, stdev=60.88 lat (msec): min=26, max=360, avg=146.49, stdev=60.88 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 75], 20.00th=[ 94], | 30.00th=[ 110], 40.00th=[ 123], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 167], 80.00th=[ 201], 90.00th=[ 232], 95.00th=[ 255], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 30, max= 191, per=25.08%, avg=85.26, stdev=36.44, samples=138 iops : min= 1, max= 11, avg= 4.57, stdev= 2.32, samples=138 lat (msec) : 10=0.13%, 20=14.45%, 50=26.04%, 100=18.88%, 250=37.24% lat (msec) : 500=3.26% cpu : usr=0.03%, sys=1.33%, ctx=1281, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144649: Wed Aug 19 04:19:52 2026 read: IOPS=5, BW=81.9KiB/s (83.8kB/s)(6032KiB/73669msec) clat (msec): min=6, max=303, avg=41.34, stdev=40.91 lat (msec): min=6, max=303, avg=41.34, stdev=40.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 128], | 99.00th=[ 226], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 286, per=29.17%, avg=94.21, stdev=59.76, samples=124 iops : min= 1, max= 17, avg= 5.15, stdev= 3.71, samples=124 write: IOPS=5, BW=84.9KiB/s (86.0kB/s)(6256KiB/73669msec); 0 zone resets clat (msec): min=42, max=445, avg=148.27, stdev=62.52 lat (msec): min=42, max=445, avg=148.27, stdev=62.52 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 94], | 30.00th=[ 111], 40.00th=[ 128], 50.00th=[ 142], 60.00th=[ 155], | 70.00th=[ 174], 80.00th=[ 194], 90.00th=[ 228], 95.00th=[ 262], | 99.00th=[ 368], 99.50th=[ 401], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 191, per=25.28%, avg=85.96, stdev=34.57, samples=142 iops : min= 1, max= 11, avg= 4.62, stdev= 2.28, samples=142 lat (msec) : 10=1.43%, 20=12.50%, 50=24.35%, 100=18.75%, 250=39.32% lat (msec) : 500=3.65% cpu : usr=0.04%, sys=1.29%, ctx=1357, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=324KiB/s (332kB/s), 77.7KiB/s-87.9KiB/s (79.5kB/s-90.0kB/s), io=23.4MiB (24.5MB), run=71179-73954msec WRITE: bw=341KiB/s (349kB/s), 84.7KiB/s-88.5KiB/s (86.8kB/s-90.6kB/s), io=24.6MiB (25.8MB), run=71179-73954msec 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=144675: Wed Aug 19 04:20:08 2026 read: IOPS=1, BW=1821KiB/s (1865kB/s)(7168KiB/3936msec) clat (msec): min=235, max=282, avg=264.58, stdev=18.94 lat (msec): min=235, max=282, avg=264.58, stdev=18.94 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 241], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 1988, max= 2921, per=51.86%, avg=2205.20, stdev=400.76, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1301KiB/s (1332kB/s)(5120KiB/3936msec); 0 zone resets clat (msec): min=289, max=575, avg=401.83, stdev=109.69 lat (msec): min=289, max=575, avg=401.92, stdev=109.68 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2019, max= 4096, per=42.79%, avg=2547.25, stdev=1032.54, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 250=16.67%, 500=75.00%, 750=8.33% cpu : usr=0.00%, sys=15.43%, ctx=268, 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=144676: Wed Aug 19 04:20:08 2026 read: IOPS=0, BW=425KiB/s (435kB/s)(2048KiB/4816msec) clat (msec): min=58, max=192, avg=125.28, stdev=94.88 lat (msec): min=58, max=192, avg=125.29, stdev=94.88 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 58], | 30.00th=[ 58], 40.00th=[ 58], 50.00th=[ 58], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 192], 95.00th=[ 192], | 99.00th=[ 192], 99.50th=[ 192], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 1590, max= 2019, per=42.44%, avg=1804.50, stdev=303.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2126KiB/s (2177kB/s)(10.0MiB/4816msec); 0 zone resets clat (msec): min=114, max=1084, avg=423.53, stdev=302.58 lat (msec): min=114, max=1084, avg=423.62, stdev=302.55 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 148], | 30.00th=[ 222], 40.00th=[ 228], 50.00th=[ 338], 60.00th=[ 359], | 70.00th=[ 414], 80.00th=[ 600], 90.00th=[ 735], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 2039, max= 6011, per=50.84%, avg=3026.67, stdev=1653.84, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=11.57%, ctx=147, 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=144677: Wed Aug 19 04:20:08 2026 read: IOPS=1, BW=1629KiB/s (1668kB/s)(6144KiB/3772msec) clat (usec): min=556, max=308349, avg=125892.56, stdev=135646.42 lat (usec): min=558, max=308351, avg=125894.13, stdev=135646.27 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 1795], | 30.00th=[ 1795], 40.00th=[ 20317], 50.00th=[ 20317], 60.00th=[183501], | 70.00th=[240124], 80.00th=[240124], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1988, max= 4039, per=59.44%, avg=2527.50, stdev=1008.00, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1629KiB/s (1668kB/s)(6144KiB/3772msec); 0 zone resets clat (msec): min=120, max=1251, avg=445.04, stdev=434.22 lat (msec): min=120, max=1252, avg=445.11, stdev=434.24 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 243], 50.00th=[ 243], 60.00th=[ 251], | 70.00th=[ 634], 80.00th=[ 634], 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= 1568, max= 4071, per=39.27%, avg=2337.80, stdev=988.37, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 50=8.33%, 250=41.67%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=12.20%, ctx=145, 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=144678: Wed Aug 19 04:20:08 2026 read: IOPS=1, BW=1086KiB/s (1112kB/s)(5120KiB/4713msec) clat (usec): min=529, max=477005, avg=188009.01, stdev=201522.13 lat (usec): min=531, max=477007, avg=188010.37, stdev=201522.18 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 1631], 40.00th=[ 1631], 50.00th=[179307], 60.00th=[179307], | 70.00th=[283116], 80.00th=[283116], 90.00th=[476054], 95.00th=[476054], | 99.00th=[476054], 99.50th=[476054], 99.90th=[476054], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 4039, max= 4071, per=95.37%, avg=4055.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1521KiB/s (1557kB/s)(7168KiB/4713msec); 0 zone resets clat (msec): min=184, max=1111, avg=487.58, stdev=353.56 lat (msec): min=184, max=1111, avg=487.67, stdev=353.54 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 194], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 384], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 844], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1503, max= 3976, per=42.15%, avg=2509.00, stdev=1299.35, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.63%, ctx=209, 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=4252KiB/s (4355kB/s), 425KiB/s-1821KiB/s (435kB/s-1865kB/s), io=20.0MiB (20.0MB), run=3772-4816msec WRITE: bw=5953KiB/s (6096kB/s), 1301KiB/s-2126KiB/s (1332kB/s-2177kB/s), io=28.0MiB (29.4MB), run=3772-4816msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144671: Wed Aug 19 04:20:08 2026 read: IOPS=2, BW=2213KiB/s (2266kB/s)(7168KiB/3239msec) clat (msec): min=102, max=362, avg=243.98, stdev=113.38 lat (msec): min=102, max=362, avg=243.98, stdev=113.38 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 118], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 305], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2000, max= 4087, per=69.27%, avg=2725.25, stdev=974.32, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1581KiB/s (1619kB/s)(5120KiB/3239msec); 0 zone resets clat (msec): min=220, max=354, avg=291.17, stdev=51.77 lat (msec): min=220, max=354, avg=291.30, stdev=51.79 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 1924, max= 4000, per=48.21%, avg=2655.67, stdev=1165.75, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.03%, sys=4.60%, ctx=65, 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=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=144672: Wed Aug 19 04:20:08 2026 read: IOPS=0, BW=393KiB/s (403kB/s)(2048KiB/5205msec) clat (msec): min=229, max=508, avg=369.22, stdev=197.64 lat (msec): min=229, max=508, avg=369.22, stdev=197.64 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 1442, max= 1899, per=42.46%, avg=1670.50, stdev=323.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1967KiB/s (2015kB/s)(10.0MiB/5205msec); 0 zone resets clat (msec): min=140, max=1233, avg=429.16, stdev=358.38 lat (msec): min=140, max=1233, avg=429.30, stdev=358.39 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 201], 50.00th=[ 241], 60.00th=[ 275], | 70.00th=[ 443], 80.00th=[ 676], 90.00th=[ 760], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1924, max= 4087, per=42.73%, avg=2353.33, stdev=850.47, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=3.79%, ctx=68, 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=144673: Wed Aug 19 04:20:08 2026 read: IOPS=1, BW=1373KiB/s (1406kB/s)(6144KiB/4476msec) clat (msec): min=89, max=482, avg=254.23, stdev=140.71 lat (msec): min=89, max=482, avg=254.24, stdev=140.71 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 284], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 1899, max= 3849, per=62.26%, avg=2449.50, stdev=934.89, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1373KiB/s (1406kB/s)(6144KiB/4476msec); 0 zone resets clat (msec): min=184, max=828, avg=456.74, stdev=238.74 lat (msec): min=184, max=829, avg=456.84, stdev=238.74 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 518], | 70.00th=[ 600], 80.00th=[ 600], 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= 1899, max= 2820, per=39.87%, avg=2196.25, stdev=420.68, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.04%, sys=4.11%, ctx=88, 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=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=144674: Wed Aug 19 04:20:08 2026 read: IOPS=1, BW=1099KiB/s (1125kB/s)(5120KiB/4659msec) clat (msec): min=74, max=812, avg=265.93, stdev=309.44 lat (msec): min=74, max=812, avg=265.93, stdev=309.44 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 121], 60.00th=[ 121], | 70.00th=[ 207], 80.00th=[ 207], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 4000, max= 4055, per=100.00%, avg=4027.50, stdev=38.89, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1539KiB/s (1575kB/s)(7168KiB/4659msec); 0 zone resets clat (msec): min=182, max=792, avg=461.82, stdev=224.35 lat (msec): min=182, max=792, avg=461.99, stdev=224.39 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 197], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 460], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 642], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1592, max= 2043, per=34.95%, avg=1925.00, stdev=192.58, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.04%, sys=2.86%, ctx=94, 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=3935KiB/s (4029kB/s), 393KiB/s-2213KiB/s (403kB/s-2266kB/s), io=20.0MiB (20.0MB), run=3239-5205msec WRITE: bw=5509KiB/s (5641kB/s), 1373KiB/s-1967KiB/s (1406kB/s-2015kB/s), io=28.0MiB (29.4MB), run=3239-5205msec 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=144685: Wed Aug 19 04:20:21 2026 read: IOPS=1, BW=4384KiB/s (4489kB/s)(12.0MiB/2803msec) clat (msec): min=845, max=953, avg=916.64, stdev=61.53 lat (msec): min=845, max=953, avg=916.64, stdev=61.53 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 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= 8000, max= 8094, per=100.00%, avg=8047.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=13.63%, ctx=288, 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=144686: Wed Aug 19 04:20:21 2026 read: IOPS=0, BW=1314KiB/s (1346kB/s)(4096KiB/3117msec) clat (nsec): min=1000.2M, max=1000.2M, avg=1000225239.00, stdev= 0.00 lat (nsec): min=1000.2M, max=1000.2M, avg=1000228520.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1003], 50.00th=[ 1003], 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= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2628KiB/s (2691kB/s)(8192KiB/3117msec); 0 zone resets clat (msec): min=426, max=1537, avg=981.81, stdev=785.78 lat (msec): min=428, max=1537, avg=983.46, stdev=784.17 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 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= 8192, max= 8192, per=88.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.35%, ctx=157, 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=144688: Wed Aug 19 04:20:21 2026 write: IOPS=0, BW=3491KiB/s (3575kB/s)(12.0MiB/3520msec); 0 zone resets clat (msec): min=868, max=1251, avg=1091.46, stdev=199.35 lat (msec): min=868, max=1253, avg=1092.46, stdev=200.06 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1250], 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= 8062, max= 8143, per=87.04%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.03%, sys=7.56%, ctx=69, 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=144690: Wed Aug 19 04:20:21 2026 write: IOPS=1, BW=5247KiB/s (5373kB/s)(12.0MiB/2342msec); 0 zone resets clat (msec): min=314, max=1564, avg=763.11, stdev=695.47 lat (msec): min=314, max=1564, avg=763.59, stdev=695.46 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7488, max= 8000, per=83.19%, avg=7744.00, stdev=362.04, 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=3.89%, ctx=32, 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=5256KiB/s (5382kB/s), 1314KiB/s-4384KiB/s (1346kB/s-4489kB/s), io=16.0MiB (16.8MB), run=2803-3117msec WRITE: bw=9309KiB/s (9533kB/s), 2628KiB/s-5247KiB/s (2691kB/s-5373kB/s), io=32.0MiB (33.6MB), run=2342-3520msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144687: Wed Aug 19 04:20:22 2026 read: IOPS=0, BW=3331KiB/s (3411kB/s)(12.0MiB/3689msec) clat (msec): min=959, max=1396, avg=1198.49, stdev=221.45 lat (msec): min=959, max=1396, avg=1198.49, stdev=221.45 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7922, max= 8175, per=100.00%, avg=8048.50, stdev=178.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.04%, ctx=56, 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=144689: Wed Aug 19 04:20:22 2026 read: IOPS=0, BW=1171KiB/s (1199kB/s)(4096KiB/3498msec) clat (nsec): min=1740.9M, max=1740.9M, avg=1740928298.00, stdev= 0.00 lat (nsec): min=1740.9M, max=1740.9M, avg=1740932424.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1737], 5.00th=[ 1737], 10.00th=[ 1737], 20.00th=[ 1737], | 30.00th=[ 1737], 40.00th=[ 1737], 50.00th=[ 1737], 60.00th=[ 1737], | 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2342KiB/s (2398kB/s)(8192KiB/3498msec); 0 zone resets clat (msec): min=586, max=1003, avg=794.98, stdev=295.49 lat (msec): min=586, max=1004, avg=795.57, stdev=295.39 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=[ 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=94.49%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.20%, ctx=50, 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=144691: Wed Aug 19 04:20:22 2026 write: IOPS=0, BW=3245KiB/s (3323kB/s)(12.0MiB/3787msec); 0 zone resets clat (msec): min=577, max=1553, avg=1225.13, stdev=560.73 lat (msec): min=578, max=1553, avg=1225.56, stdev=560.69 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8175, max= 8175, per=94.49%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.09%, ctx=40, 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=144692: Wed Aug 19 04:20:22 2026 write: IOPS=1, BW=4639KiB/s (4750kB/s)(12.0MiB/2649msec); 0 zone resets clat (msec): min=315, max=1522, avg=848.97, stdev=615.83 lat (msec): min=315, max=1523, avg=849.40, stdev=615.92 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7922, max= 7922, per=91.56%, avg=7922.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.93%, 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=4441KiB/s (4548kB/s), 1171KiB/s-3331KiB/s (1199kB/s-3411kB/s), io=16.0MiB (16.8MB), run=3498-3689msec WRITE: bw=8653KiB/s (8860kB/s), 2342KiB/s-4639KiB/s (2398kB/s-4750kB/s), io=32.0MiB (33.6MB), run=2649-3787msec