== sanity test 398b: DIO and buffer IO race ============== 05:32:04 (1786181524) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.15223 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=145002: Sat Aug 8 05:34:34 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5992KiB/129882msec) clat (usec): min=24, max=599102, avg=41641.64, stdev=35562.23 lat (usec): min=25, max=599103, avg=41645.65, stdev=35562.68 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 71], 20.00th=[ 17433], | 30.00th=[ 23462], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 62653], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[143655], 99.50th=[170918], 99.90th=[312476], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 108, per=24.74%, avg=45.51, stdev=19.99, samples=255 iops : min= 1, max= 27, avg=10.72, stdev= 5.05, samples=255 write: IOPS=12, BW=48.5KiB/s (49.6kB/s)(6296KiB/129882msec); 0 zone resets clat (usec): min=992, max=321976, avg=42519.31, stdev=43685.79 lat (usec): min=994, max=321977, avg=42523.56, stdev=43686.27 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1745], 20.00th=[ 4490], | 30.00th=[ 9372], 40.00th=[ 20055], 50.00th=[ 31327], 60.00th=[ 42730], | 70.00th=[ 55313], 80.00th=[ 73925], 90.00th=[ 99091], 95.00th=[126354], | 99.00th=[189793], 99.50th=[238027], 99.90th=[308282], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 140, per=24.94%, avg=48.14, stdev=21.65, samples=254 iops : min= 1, max= 35, avg=11.38, stdev= 5.45, samples=254 lat (usec) : 50=0.72%, 100=4.98%, 250=0.16%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.60%, 4=3.58%, 10=7.13%, 20=9.51%, 50=35.74% lat (msec) : 100=25.00%, 250=7.00%, 500=0.36%, 750=0.03% cpu : usr=0.07%, sys=5.35%, ctx=6533, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145003: Sat Aug 8 05:34:34 2026 read: IOPS=11, BW=46.7KiB/s (47.9kB/s)(5940KiB/127065msec) clat (usec): min=32, max=316704, avg=40904.20, stdev=33134.54 lat (usec): min=32, max=316705, avg=40906.90, stdev=33133.79 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 58], 10.00th=[ 73], 20.00th=[ 17957], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 50070], 80.00th=[ 62653], 90.00th=[ 80217], 95.00th=[ 95945], | 99.00th=[139461], 99.50th=[189793], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 5, max= 110, per=25.37%, avg=46.68, stdev=20.66, samples=248 iops : min= 1, max= 27, avg=11.02, stdev= 5.21, samples=248 write: IOPS=12, BW=49.0KiB/s (51.2kB/s)(6348KiB/127065msec); 0 zone resets clat (usec): min=740, max=573898, avg=41353.94, stdev=44560.22 lat (usec): min=740, max=573900, avg=41357.21, stdev=44559.46 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1385], 10.00th=[ 1713], 20.00th=[ 4752], | 30.00th=[ 9896], 40.00th=[ 19792], 50.00th=[ 30802], 60.00th=[ 41681], | 70.00th=[ 54264], 80.00th=[ 70779], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[173016], 99.50th=[217056], 99.90th=[541066], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 5, max= 135, per=25.57%, avg=49.34, stdev=20.83, samples=250 iops : min= 1, max= 33, avg=11.69, stdev= 5.24, samples=250 lat (usec) : 50=0.91%, 100=4.56%, 250=0.52%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=5.79%, 4=3.22%, 10=7.00%, 20=9.70%, 50=36.59% lat (msec) : 100=25.26%, 250=5.92%, 500=0.23%, 750=0.07% cpu : usr=0.07%, sys=5.52%, ctx=6370, 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=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=145006: Sat Aug 8 05:34:34 2026 read: IOPS=11, BW=47.4KiB/s (48.6kB/s)(6028KiB/127088msec) clat (usec): min=25, max=457736, avg=40537.45, stdev=34588.13 lat (usec): min=25, max=457737, avg=40539.09, stdev=34587.89 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 17695], | 30.00th=[ 22938], 40.00th=[ 27132], 50.00th=[ 32375], 60.00th=[ 39584], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[162530], 99.50th=[181404], 99.90th=[333448], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 7, max= 111, per=26.00%, avg=47.84, stdev=22.58, samples=246 iops : min= 1, max= 27, avg=11.30, stdev= 5.68, samples=246 write: IOPS=12, BW=49.3KiB/s (50.4kB/s)(6260KiB/127088msec); 0 zone resets clat (usec): min=793, max=723833, avg=41811.33, stdev=47423.00 lat (usec): min=793, max=723835, avg=41832.99, stdev=47444.19 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1352], 10.00th=[ 1598], 20.00th=[ 4555], | 30.00th=[ 8094], 40.00th=[ 19792], 50.00th=[ 29754], 60.00th=[ 39584], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[202376], 99.50th=[235930], 99.90th=[371196], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 7, max= 118, per=25.46%, avg=49.13, stdev=21.55, samples=248 iops : min= 1, max= 29, avg=11.64, stdev= 5.44, samples=248 lat (usec) : 50=1.04%, 100=4.85%, 250=0.26%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.05%, 4=3.26%, 10=7.52%, 20=8.92%, 50=37.14% lat (msec) : 100=23.31%, 250=7.13%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=5.43%, ctx=6384, 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=145008: Sat Aug 8 05:34:34 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6052KiB/125543msec) clat (usec): min=31, max=256117, avg=38855.96, stdev=29856.10 lat (usec): min=32, max=256118, avg=38859.37, stdev=29856.51 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 69], 20.00th=[ 16712], | 30.00th=[ 22938], 40.00th=[ 28181], 50.00th=[ 33162], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 59507], 90.00th=[ 79168], 95.00th=[ 93848], | 99.00th=[131597], 99.50th=[145753], 99.90th=[219153], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 112, per=26.27%, avg=48.34, stdev=21.33, samples=244 iops : min= 1, max= 28, avg=11.44, stdev= 5.38, samples=244 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6236KiB/125543msec); 0 zone resets clat (usec): min=1031, max=783781, avg=42467.10, stdev=47129.02 lat (usec): min=1032, max=783785, avg=42469.53, stdev=47129.39 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1385], 10.00th=[ 1778], 20.00th=[ 5342], | 30.00th=[ 10159], 40.00th=[ 20841], 50.00th=[ 31065], 60.00th=[ 42206], | 70.00th=[ 54264], 80.00th=[ 72877], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[196084], 99.50th=[223347], 99.90th=[455082], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 118, per=25.58%, avg=49.38, stdev=19.66, samples=246 iops : min= 1, max= 29, avg=11.69, stdev= 4.96, samples=246 lat (usec) : 50=1.04%, 100=4.92%, 250=0.20%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.53%, 4=3.03%, 10=7.03%, 20=10.25%, 50=37.66% lat (msec) : 100=23.57%, 250=6.45%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.44%, ctx=6350, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=185KiB/s (189kB/s), 46.1KiB/s-48.2KiB/s (47.2kB/s-49.4kB/s), io=23.4MiB (24.6MB), run=125543-129882msec WRITE: bw=194KiB/s (198kB/s), 48.5KiB/s-49.0KiB/s (49.6kB/s-51.2kB/s), io=24.6MiB (25.7MB), run=125543-129882msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145001: Sat Aug 8 05:37:02 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(5992KiB/277491msec) clat (msec): min=5, max=593, avg=35.65, stdev=39.98 lat (msec): min=5, max=593, avg=35.66, stdev=39.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 75], 95.00th=[ 112], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 355], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 111, per=28.41%, avg=24.43, stdev=16.40, samples=473 iops : min= 1, max= 27, avg= 5.49, stdev= 4.13, samples=473 write: IOPS=5, BW=22.7KiB/s (23.2kB/s)(6296KiB/277491msec); 0 zone resets clat (msec): min=29, max=592, avg=142.04, stdev=69.64 lat (msec): min=29, max=592, avg=142.04, stdev=69.64 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 380], 99.50th=[ 456], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 55, per=25.03%, avg=22.52, stdev=10.50, samples=537 iops : min= 1, max= 13, avg= 5.01, stdev= 2.68, samples=537 lat (msec) : 10=4.07%, 20=17.68%, 50=18.29%, 100=21.45%, 250=34.44% lat (msec) : 500=3.97%, 750=0.10% cpu : usr=0.04%, sys=1.30%, ctx=5203, 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=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=145004: Sat Aug 8 05:37:02 2026 read: IOPS=5, BW=21.6KiB/s (22.2kB/s)(5940KiB/274585msec) clat (msec): min=5, max=550, avg=33.18, stdev=34.06 lat (msec): min=5, max=550, avg=33.18, stdev=34.06 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 148], 99.50th=[ 174], 99.90th=[ 351], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 87, per=28.79%, avg=24.76, stdev=16.88, samples=464 iops : min= 1, max= 21, avg= 5.57, stdev= 4.27, samples=464 write: IOPS=5, BW=23.1KiB/s (23.7kB/s)(6348KiB/274585msec); 0 zone resets clat (msec): min=35, max=590, avg=141.65, stdev=66.75 lat (msec): min=35, max=590, avg=141.66, stdev=66.75 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 113], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 186], 90.00th=[ 228], 95.00th=[ 266], | 99.00th=[ 372], 99.50th=[ 401], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 64, per=25.17%, avg=22.66, stdev=10.33, samples=540 iops : min= 1, max= 16, avg= 5.04, stdev= 2.63, samples=540 lat (msec) : 10=4.59%, 20=16.60%, 50=19.08%, 100=21.78%, 250=34.21% lat (msec) : 500=3.61%, 750=0.13% cpu : usr=0.04%, sys=1.27%, ctx=5071, 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=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=145005: Sat Aug 8 05:37:02 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6028KiB/276402msec) clat (msec): min=5, max=338, avg=35.26, stdev=33.10 lat (msec): min=5, max=338, avg=35.27, stdev=33.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 53], 90.00th=[ 77], 95.00th=[ 99], | 99.00th=[ 167], 99.50th=[ 182], 99.90th=[ 275], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 103, per=28.05%, avg=24.12, stdev=16.39, samples=482 iops : min= 1, max= 25, avg= 5.41, stdev= 4.13, samples=482 write: IOPS=5, BW=22.6KiB/s (23.2kB/s)(6260KiB/276402msec); 0 zone resets clat (msec): min=31, max=713, avg=142.33, stdev=70.61 lat (msec): min=31, max=713, avg=142.33, stdev=70.61 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 100], 40.00th=[ 113], 50.00th=[ 127], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 234], 95.00th=[ 271], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 600], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 55, per=24.92%, avg=22.43, stdev=10.28, samples=537 iops : min= 1, max= 13, avg= 4.99, stdev= 2.63, samples=537 lat (msec) : 10=3.65%, 20=16.73%, 50=19.14%, 100=22.56%, 250=34.34% lat (msec) : 500=3.45%, 750=0.13% cpu : usr=0.04%, sys=1.25%, ctx=5124, 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=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=145007: Sat Aug 8 05:37:02 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6052KiB/276325msec) clat (msec): min=5, max=301, avg=34.33, stdev=34.34 lat (msec): min=5, max=301, avg=34.34, stdev=34.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 100], | 99.00th=[ 165], 99.50th=[ 220], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 112, per=28.89%, avg=24.85, stdev=16.55, samples=471 iops : min= 1, max= 28, avg= 5.59, stdev= 4.17, samples=471 write: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6236KiB/276325msec); 0 zone resets clat (msec): min=41, max=779, avg=143.62, stdev=69.25 lat (msec): min=41, max=779, avg=143.63, stdev=69.25 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 116], 50.00th=[ 130], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 230], 95.00th=[ 275], | 99.00th=[ 376], 99.50th=[ 414], 99.90th=[ 558], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 55, per=24.68%, avg=22.21, stdev= 9.98, samples=540 iops : min= 1, max= 13, avg= 4.93, stdev= 2.54, samples=540 lat (msec) : 10=4.04%, 20=16.99%, 50=19.86%, 100=20.80%, 250=34.41% lat (msec) : 500=3.81%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.29%, ctx=5244, 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=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=86.5KiB/s (88.6kB/s), 21.6KiB/s-21.9KiB/s (22.1kB/s-22.4kB/s), io=23.4MiB (24.6MB), run=274585-277491msec WRITE: bw=90.6KiB/s (92.8kB/s), 22.6KiB/s-23.1KiB/s (23.1kB/s-23.7kB/s), io=24.6MiB (25.7MB), run=274585-277491msec 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=145064: Sat Aug 8 05:37:42 2026 read: IOPS=12, BW=200KiB/s (205kB/s)(5920KiB/29531msec) clat (usec): min=32, max=226941, avg=41080.33, stdev=35533.78 lat (usec): min=32, max=226942, avg=41084.73, stdev=35533.97 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 611], | 30.00th=[ 22152], 40.00th=[ 29492], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 63177], 90.00th=[ 78119], 95.00th=[106431], | 99.00th=[156238], 99.50th=[212861], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 384, per=24.32%, avg=197.26, stdev=78.29, samples=57 iops : min= 1, max= 24, avg=11.61, stdev= 4.96, samples=57 write: IOPS=13, BW=216KiB/s (221kB/s)(6368KiB/29531msec); 0 zone resets clat (usec): min=1282, max=238240, avg=34796.99, stdev=37295.87 lat (usec): min=1283, max=238242, avg=34802.10, stdev=37296.09 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1958], 10.00th=[ 2868], 20.00th=[ 5669], | 30.00th=[ 9241], 40.00th=[ 13698], 50.00th=[ 21627], 60.00th=[ 32900], | 70.00th=[ 41681], 80.00th=[ 59507], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[173016], 99.50th=[210764], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 22, max= 445, per=25.12%, avg=214.30, stdev=100.58, samples=57 iops : min= 1, max= 27, avg=12.68, stdev= 6.34, samples=57 lat (usec) : 50=1.17%, 100=7.94%, 250=0.39%, 750=0.13% lat (msec) : 2=3.52%, 4=4.17%, 10=9.51%, 20=10.55%, 50=34.90% lat (msec) : 100=21.22%, 250=6.51% cpu : usr=0.12%, sys=5.96%, ctx=1521, 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=145065: Sat Aug 8 05:37:42 2026 read: IOPS=12, BW=195KiB/s (200kB/s)(5744KiB/29451msec) clat (usec): min=38, max=314518, avg=41718.56, stdev=37925.53 lat (usec): min=39, max=314519, avg=41727.35, stdev=37931.01 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 347], | 30.00th=[ 24773], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 65799], 90.00th=[ 77071], 95.00th=[ 99091], | 99.00th=[177210], 99.50th=[274727], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 381, per=24.13%, avg=195.70, stdev=71.42, samples=57 iops : min= 1, max= 23, avg=11.51, stdev= 4.50, samples=57 write: IOPS=13, BW=222KiB/s (228kB/s)(6544KiB/29451msec); 0 zone resets clat (usec): min=1455, max=231065, avg=35061.90, stdev=36923.44 lat (usec): min=1457, max=231067, avg=35066.94, stdev=36922.53 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2008], 10.00th=[ 2966], 20.00th=[ 5800], | 30.00th=[ 9372], 40.00th=[ 14746], 50.00th=[ 22676], 60.00th=[ 32113], | 70.00th=[ 42206], 80.00th=[ 57410], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[154141], 99.50th=[181404], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 62, max= 435, per=26.07%, avg=222.40, stdev=93.62, samples=57 iops : min= 3, max= 27, avg=13.19, stdev= 5.97, samples=57 lat (usec) : 50=1.30%, 100=7.42%, 250=0.39%, 500=0.39% lat (msec) : 2=2.60%, 4=5.08%, 10=9.38%, 20=11.20%, 50=33.20% lat (msec) : 100=22.66%, 250=6.12%, 500=0.26% cpu : usr=0.08%, sys=6.06%, ctx=1526, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145066: Sat Aug 8 05:37:42 2026 read: IOPS=13, BW=218KiB/s (223kB/s)(6256KiB/28699msec) clat (usec): min=38, max=222035, avg=37812.33, stdev=32857.26 lat (usec): min=39, max=222036, avg=37813.70, stdev=32857.10 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 82], | 30.00th=[ 22152], 40.00th=[ 28443], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[101188], | 99.00th=[135267], 99.50th=[162530], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 22, max= 413, per=27.17%, avg=220.36, stdev=95.18, samples=56 iops : min= 1, max= 25, avg=13.07, stdev= 6.05, samples=56 write: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28699msec); 0 zone resets clat (usec): min=1472, max=263534, avg=36152.84, stdev=39181.76 lat (usec): min=1474, max=263538, avg=36163.33, stdev=39179.34 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2008], 10.00th=[ 3032], 20.00th=[ 6063], | 30.00th=[ 10290], 40.00th=[ 14615], 50.00th=[ 22414], 60.00th=[ 31851], | 70.00th=[ 46400], 80.00th=[ 62129], 90.00th=[ 86508], 95.00th=[114820], | 99.00th=[183501], 99.50th=[219153], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 63, max= 500, per=24.67%, avg=210.39, stdev=100.00, samples=56 iops : min= 3, max= 31, avg=12.45, stdev= 6.30, samples=56 lat (usec) : 50=1.43%, 100=9.64%, 250=0.78%, 500=0.13%, 750=0.26% lat (msec) : 2=2.34%, 4=4.56%, 10=8.20%, 20=10.81%, 50=32.81% lat (msec) : 100=23.05%, 250=5.86%, 500=0.13% cpu : usr=0.09%, sys=6.38%, ctx=1478, 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=145067: Sat Aug 8 05:37:42 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28773msec) clat (usec): min=37, max=276569, avg=41288.16, stdev=39423.25 lat (usec): min=37, max=276570, avg=41289.37, stdev=39423.19 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 83], | 30.00th=[ 18744], 40.00th=[ 29754], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[189793], 99.50th=[252707], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 413, per=25.67%, avg=208.18, stdev=87.69, samples=56 iops : min= 1, max= 25, avg=12.29, stdev= 5.61, samples=56 write: IOPS=13, BW=217KiB/s (223kB/s)(6256KiB/28773msec); 0 zone resets clat (usec): min=1167, max=297018, avg=32757.59, stdev=37323.45 lat (usec): min=1168, max=297021, avg=32759.88, stdev=37323.56 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1926], 10.00th=[ 3130], 20.00th=[ 4948], | 30.00th=[ 7832], 40.00th=[ 11338], 50.00th=[ 17433], 60.00th=[ 27657], | 70.00th=[ 38536], 80.00th=[ 60031], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[168821], 99.50th=[198181], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 414, per=25.55%, avg=217.93, stdev=81.71, samples=56 iops : min= 1, max= 25, avg=12.91, stdev= 5.14, samples=56 lat (usec) : 50=1.17%, 100=9.24%, 250=1.04%, 750=0.39%, 1000=0.39% lat (msec) : 2=3.65%, 4=3.65%, 10=11.59%, 20=11.07%, 50=29.56% lat (msec) : 100=22.66%, 250=5.21%, 500=0.39% cpu : usr=0.06%, sys=6.16%, ctx=1459, 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=811KiB/s (831kB/s), 195KiB/s-218KiB/s (200kB/s-223kB/s), io=23.4MiB (24.5MB), run=28699-29531msec WRITE: bw=853KiB/s (874kB/s), 210KiB/s-222KiB/s (215kB/s-228kB/s), io=24.6MiB (25.8MB), run=28699-29531msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145068: Sat Aug 8 05:38:24 2026 read: IOPS=5, BW=84.1KiB/s (86.1kB/s)(5920KiB/70411msec) clat (msec): min=6, max=286, avg=39.08, stdev=34.33 lat (msec): min=6, max=286, avg=39.08, stdev=34.33 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 77], 95.00th=[ 111], | 99.00th=[ 184], 99.50th=[ 205], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 317, per=28.17%, avg=93.81, stdev=51.92, samples=124 iops : min= 1, max= 19, avg= 5.09, stdev= 3.33, samples=124 write: IOPS=5, BW=90.4KiB/s (92.6kB/s)(6368KiB/70411msec); 0 zone resets clat (msec): min=39, max=490, avg=139.55, stdev=61.24 lat (msec): min=39, max=490, avg=139.55, stdev=61.24 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 422], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 191, per=26.32%, avg=92.40, stdev=38.62, samples=135 iops : min= 1, max= 11, avg= 5.00, stdev= 2.46, samples=135 lat (msec) : 10=1.43%, 20=13.41%, 50=23.31%, 100=21.74%, 250=36.98% lat (msec) : 500=3.12% cpu : usr=0.05%, sys=1.43%, ctx=1363, 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=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=145069: Sat Aug 8 05:38:24 2026 read: IOPS=5, BW=80.1KiB/s (82.0kB/s)(5744KiB/71729msec) clat (msec): min=4, max=399, avg=41.31, stdev=42.18 lat (msec): min=4, max=399, avg=41.32, stdev=42.18 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 91], 95.00th=[ 138], | 99.00th=[ 182], 99.50th=[ 218], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 30, max= 320, per=27.71%, avg=92.28, stdev=63.75, samples=123 iops : min= 1, max= 20, avg= 4.98, stdev= 4.06, samples=123 write: IOPS=5, BW=91.2KiB/s (93.4kB/s)(6544KiB/71729msec); 0 zone resets clat (msec): min=21, max=384, avg=138.07, stdev=57.12 lat (msec): min=21, max=384, avg=138.07, stdev=57.12 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 61], 10.00th=[ 74], 20.00th=[ 92], | 30.00th=[ 105], 40.00th=[ 116], 50.00th=[ 129], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 249], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 31, max= 319, per=26.61%, avg=93.38, stdev=42.25, samples=138 iops : min= 1, max= 19, avg= 5.07, stdev= 2.71, samples=138 lat (msec) : 10=2.08%, 20=12.76%, 50=22.53%, 100=18.10%, 250=41.93% lat (msec) : 500=2.60% cpu : usr=0.04%, sys=1.42%, ctx=1373, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145070: Sat Aug 8 05:38:24 2026 read: IOPS=5, BW=91.6KiB/s (93.8kB/s)(6256KiB/68325msec) clat (msec): min=7, max=340, avg=38.19, stdev=35.52 lat (msec): min=7, max=340, avg=38.20, stdev=35.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 53], 90.00th=[ 77], 95.00th=[ 102], | 99.00th=[ 165], 99.50th=[ 243], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 349, per=29.90%, avg=99.56, stdev=68.23, samples=124 iops : min= 1, max= 21, avg= 5.47, stdev= 4.34, samples=124 write: IOPS=5, BW=88.3KiB/s (90.4kB/s)(6032KiB/68325msec); 0 zone resets clat (msec): min=52, max=555, avg=141.43, stdev=64.59 lat (msec): min=52, max=555, avg=141.44, stdev=64.59 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 236], 95.00th=[ 271], | 99.00th=[ 347], 99.50th=[ 372], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 31, max= 190, per=25.62%, avg=89.92, stdev=35.60, samples=132 iops : min= 1, max= 11, avg= 4.85, stdev= 2.32, samples=132 lat (msec) : 10=1.56%, 20=14.45%, 50=24.22%, 100=21.88%, 250=33.72% lat (msec) : 500=4.04%, 750=0.13% cpu : usr=0.04%, sys=1.53%, ctx=1402, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145071: Sat Aug 8 05:38:24 2026 read: IOPS=5, BW=85.7KiB/s (87.8kB/s)(6032KiB/70358msec) clat (msec): min=7, max=356, avg=38.50, stdev=34.99 lat (msec): min=7, max=356, avg=38.50, stdev=34.99 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 73], 95.00th=[ 102], | 99.00th=[ 182], 99.50th=[ 275], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 30, max= 318, per=28.29%, avg=94.20, stdev=60.78, samples=125 iops : min= 1, max= 19, avg= 5.12, stdev= 3.85, samples=125 write: IOPS=5, BW=88.9KiB/s (91.1kB/s)(6256KiB/70358msec); 0 zone resets clat (msec): min=43, max=479, avg=141.88, stdev=63.65 lat (msec): min=43, max=479, avg=141.88, stdev=63.65 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 82], 20.00th=[ 93], | 30.00th=[ 106], 40.00th=[ 117], 50.00th=[ 127], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 224], 95.00th=[ 257], | 99.00th=[ 359], 99.50th=[ 447], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 31, max= 160, per=25.54%, avg=89.66, stdev=35.38, samples=137 iops : min= 1, max= 10, avg= 4.82, stdev= 2.33, samples=137 lat (msec) : 10=1.04%, 20=12.37%, 50=25.52%, 100=21.22%, 250=36.46% lat (msec) : 500=3.39% cpu : usr=0.04%, sys=1.51%, 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=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=334KiB/s (342kB/s), 80.1KiB/s-91.6KiB/s (82.0kB/s-93.8kB/s), io=23.4MiB (24.5MB), run=68325-71729msec WRITE: bw=351KiB/s (360kB/s), 88.3KiB/s-91.2KiB/s (90.4kB/s-93.4kB/s), io=24.6MiB (25.8MB), run=68325-71729msec 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=145093: Sat Aug 8 05:38:43 2026 read: IOPS=1, BW=1224KiB/s (1253kB/s)(7168KiB/5857msec) clat (msec): min=221, max=323, avg=257.07, stdev=34.77 lat (msec): min=221, max=323, avg=257.07, stdev=34.77 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 236], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 243], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1372, max= 4023, per=72.04%, avg=2269.40, stdev=1016.40, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=874KiB/s (895kB/s)(5120KiB/5857msec); 0 zone resets clat (msec): min=201, max=2541, avg=754.92, stdev=1005.99 lat (msec): min=201, max=2541, avg=755.01, stdev=1006.00 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 2011, max= 3842, per=59.56%, avg=2626.67, stdev=1052.54, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=8.50%, ctx=242, 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=145094: Sat Aug 8 05:38:43 2026 read: IOPS=0, BW=358KiB/s (367kB/s)(2048KiB/5713msec) clat (msec): min=126, max=291, avg=209.07, stdev=116.51 lat (msec): min=126, max=291, avg=209.08, stdev=116.51 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1446, max= 2043, per=55.38%, avg=1744.50, stdev=422.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1792KiB/s (1835kB/s)(10.0MiB/5713msec); 0 zone resets clat (msec): min=100, max=1524, avg=519.78, stdev=483.35 lat (msec): min=100, max=1524, avg=519.92, stdev=483.36 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 111], | 30.00th=[ 126], 40.00th=[ 165], 50.00th=[ 266], 60.00th=[ 430], | 70.00th=[ 676], 80.00th=[ 701], 90.00th=[ 1099], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1446, max= 4087, per=65.87%, avg=2905.00, stdev=1265.86, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=7.27%, ctx=201, 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=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=145095: Sat Aug 8 05:38:43 2026 read: IOPS=1, BW=1187KiB/s (1216kB/s)(6144KiB/5176msec) clat (msec): min=3, max=1739, avg=469.20, stdev=638.40 lat (msec): min=3, max=1739, avg=469.20, stdev=638.40 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 230], | 70.00th=[ 451], 80.00th=[ 451], 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= 1822, max= 2023, per=62.52%, avg=1969.40, stdev=83.60, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1187KiB/s (1216kB/s)(6144KiB/5176msec); 0 zone resets clat (msec): min=157, max=802, avg=384.82, stdev=274.95 lat (msec): min=157, max=802, avg=384.92, stdev=274.95 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 368], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1822, max= 4047, per=53.93%, avg=2378.40, stdev=936.60, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 4=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=7.56%, ctx=409, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145096: Sat Aug 8 05:38:43 2026 read: IOPS=0, BW=788KiB/s (806kB/s)(5120KiB/6501msec) clat (msec): min=3, max=1790, avg=502.83, stdev=727.51 lat (msec): min=3, max=1790, avg=502.83, stdev=727.51 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 2019, max= 4087, per=86.23%, avg=2716.33, stdev=1187.09, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1103KiB/s (1129kB/s)(7168KiB/6501msec); 0 zone resets clat (msec): min=195, max=1183, avg=529.55, stdev=379.21 lat (msec): min=195, max=1183, avg=529.78, stdev=379.14 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 205], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 388], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 827], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 2011, max= 3953, per=66.91%, avg=2950.75, stdev=1086.33, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 4=8.33%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=16.67% cpu : usr=0.00%, sys=5.71%, ctx=277, 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=3150KiB/s (3226kB/s), 358KiB/s-1224KiB/s (367kB/s-1253kB/s), io=20.0MiB (20.0MB), run=5176-6501msec WRITE: bw=4410KiB/s (4516kB/s), 874KiB/s-1792KiB/s (895kB/s-1835kB/s), io=28.0MiB (29.4MB), run=5176-6501msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145088: Sat Aug 8 05:38:44 2026 read: IOPS=1, BW=1322KiB/s (1354kB/s)(7168KiB/5422msec) clat (msec): min=124, max=285, avg=200.05, stdev=67.59 lat (msec): min=124, max=285, avg=200.06, stdev=67.59 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 130], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 192], 60.00th=[ 247], | 70.00th=[ 247], 80.00th=[ 271], 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= 2015, max= 4015, per=100.00%, avg=2794.00, stdev=956.84, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=0, BW=944KiB/s (967kB/s)(5120KiB/5422msec); 0 zone resets clat (msec): min=247, max=2402, avg=741.82, stdev=934.42 lat (msec): min=247, max=2402, avg=742.16, stdev=934.26 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 1988, max= 4000, per=65.59%, avg=2512.75, stdev=991.80, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.06%, ctx=72, 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=145089: Sat Aug 8 05:38:44 2026 read: IOPS=0, BW=294KiB/s (301kB/s)(2048KiB/6959msec) clat (msec): min=128, max=1778, avg=953.28, stdev=1166.92 lat (msec): min=128, max=1778, avg=953.29, stdev=1166.92 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 1787], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1563, max= 2048, per=65.99%, avg=1805.50, stdev=342.95, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1471KiB/s (1507kB/s)(10.0MiB/6959msec); 0 zone resets clat (msec): min=225, max=1184, avg=496.94, stdev=284.95 lat (msec): min=225, max=1184, avg=497.03, stdev=284.95 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 241], | 30.00th=[ 326], 40.00th=[ 393], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 502], 80.00th=[ 510], 90.00th=[ 751], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1563, max= 4023, per=57.80%, avg=2214.50, stdev=748.50, samples=8 iops : min= 1, max= 3, avg= 1.50, stdev= 0.76, samples=8 lat (msec) : 250=25.00%, 500=33.33%, 750=16.67%, 1000=8.33%, 2000=16.67% cpu : usr=0.03%, sys=2.99%, ctx=76, 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=145091: Sat Aug 8 05:38:44 2026 read: IOPS=0, BW=871KiB/s (892kB/s)(6144KiB/7056msec) clat (msec): min=142, max=1790, avg=653.12, stdev=673.07 lat (msec): min=142, max=1790, avg=653.12, stdev=673.07 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 430], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 2000, max= 2048, per=74.17%, avg=2029.20, stdev=22.29, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=0, BW=871KiB/s (892kB/s)(6144KiB/7056msec); 0 zone resets clat (msec): min=249, max=855, avg=474.43, stdev=219.29 lat (msec): min=249, max=855, avg=474.53, stdev=219.29 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 460], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 2000, max= 2048, per=52.63%, avg=2016.20, stdev=18.62, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33%, 2000=16.67% cpu : usr=0.03%, sys=2.69%, ctx=113, 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=145092: Sat Aug 8 05:38:44 2026 read: IOPS=0, BW=684KiB/s (701kB/s)(5120KiB/7484msec) clat (msec): min=99, max=1878, avg=696.65, stdev=805.61 lat (msec): min=99, max=1878, avg=696.65, stdev=805.61 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 211], 60.00th=[ 211], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 2039, max= 4023, per=98.81%, avg=2703.33, stdev=1142.87, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=0, BW=958KiB/s (981kB/s)(7168KiB/7484msec); 0 zone resets clat (msec): min=176, max=1178, avg=543.75, stdev=339.38 lat (msec): min=176, max=1178, avg=544.51, stdev=339.46 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 232], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 477], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 701], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1988, max= 3961, per=62.75%, avg=2403.80, stdev=870.77, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=16.67%, 750=16.67%, 2000=25.00% cpu : usr=0.01%, sys=2.04%, ctx=80, 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=2737KiB/s (2802kB/s), 294KiB/s-1322KiB/s (301kB/s-1354kB/s), io=20.0MiB (20.0MB), run=5422-7484msec WRITE: bw=3831KiB/s (3923kB/s), 871KiB/s-1471KiB/s (892kB/s-1507kB/s), io=28.0MiB (29.4MB), run=5422-7484msec 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=145105: Sat Aug 8 05:39:02 2026 read: IOPS=0, BW=3394KiB/s (3476kB/s)(12.0MiB/3620msec) clat (msec): min=780, max=1530, avg=1165.18, stdev=375.30 lat (msec): min=780, max=1530, avg=1165.18, stdev=375.30 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 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= 7713, max= 8159, per=100.00%, avg=7936.00, stdev=315.37, 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=3.15%, ctx=57, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145106: Sat Aug 8 05:39:02 2026 read: IOPS=0, BW=988KiB/s (1011kB/s)(4096KiB/4147msec) clat (nsec): min=1711.6M, max=1711.6M, avg=1711585965.00, stdev= 0.00 lat (nsec): min=1711.6M, max=1711.6M, avg=1711588845.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1720], 5.00th=[ 1720], 10.00th=[ 1720], 20.00th=[ 1720], | 30.00th=[ 1720], 40.00th=[ 1720], 50.00th=[ 1720], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1975KiB/s (2023kB/s)(8192KiB/4147msec); 0 zone resets clat (msec): min=1070, max=1291, avg=1180.98, stdev=156.54 lat (msec): min=1070, max=1292, avg=1181.63, stdev=156.88 clat percentiles (msec): | 1.00th=[ 1070], 5.00th=[ 1070], 10.00th=[ 1070], 20.00th=[ 1070], | 30.00th=[ 1070], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7713, max= 7713, per=97.62%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=1.93%, ctx=38, 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=145107: Sat Aug 8 05:39:02 2026 write: IOPS=1, BW=6334KiB/s (6486kB/s)(12.0MiB/1940msec); 0 zone resets clat (msec): min=464, max=659, avg=553.06, stdev=98.49 lat (msec): min=465, max=659, avg=553.51, stdev=98.29 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7460, max= 8175, per=98.94%, avg=7817.50, stdev=505.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=6.60%, ctx=78, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145109: Sat Aug 8 05:39:02 2026 write: IOPS=0, BW=3429KiB/s (3511kB/s)(12.0MiB/3584msec); 0 zone resets clat (msec): min=469, max=1868, avg=1177.33, stdev=699.54 lat (msec): min=469, max=1871, avg=1178.89, stdev=701.07 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7314, max= 8078, per=97.41%, avg=7696.00, stdev=540.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.18%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3951KiB/s (4046kB/s), 988KiB/s-3394KiB/s (1011kB/s-3476kB/s), io=16.0MiB (16.8MB), run=3620-4147msec WRITE: bw=7902KiB/s (8091kB/s), 1975KiB/s-6334KiB/s (2023kB/s-6486kB/s), io=32.0MiB (33.6MB), run=1940-4147msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145108: Sat Aug 8 05:39:02 2026 read: IOPS=0, BW=3613KiB/s (3700kB/s)(12.0MiB/3401msec) clat (msec): min=850, max=1171, avg=1041.60, stdev=168.75 lat (msec): min=850, max=1171, avg=1041.60, stdev=168.75 clat percentiles (msec): | 1.00th=[ 852], 5.00th=[ 852], 10.00th=[ 852], 20.00th=[ 852], | 30.00th=[ 852], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 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= 7984, max= 8078, per=100.00%, avg=8031.00, stdev=66.47, 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=10.91%, ctx=170, majf=0, minf=7 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=145110: Sat Aug 8 05:39:02 2026 read: IOPS=0, BW=1053KiB/s (1079kB/s)(4096KiB/3889msec) clat (nsec): min=1063.7M, max=1063.7M, avg=1063664564.00, stdev= 0.00 lat (nsec): min=1063.7M, max=1063.7M, avg=1063667181.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2106KiB/s (2157kB/s)(8192KiB/3889msec); 0 zone resets clat (msec): min=1054, max=1445, avg=1249.60, stdev=276.57 lat (msec): min=1055, max=1445, avg=1250.50, stdev=275.81 clat percentiles (msec): | 1.00th=[ 1053], 5.00th=[ 1053], 10.00th=[ 1053], 20.00th=[ 1053], | 30.00th=[ 1053], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=2.73%, ctx=75, 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=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=145111: Sat Aug 8 05:39:02 2026 write: IOPS=0, BW=2538KiB/s (2599kB/s)(12.0MiB/4841msec); 0 zone resets clat (msec): min=468, max=3215, avg=1588.60, stdev=1441.74 lat (msec): min=468, max=3215, avg=1589.81, stdev=1441.26 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 3205], 80.00th=[ 3205], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 7937, max= 8126, per=100.00%, avg=8031.50, stdev=133.64, 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=3.29%, ctx=43, majf=0, minf=7 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=145112: Sat Aug 8 05:39:02 2026 write: IOPS=0, BW=3199KiB/s (3276kB/s)(12.0MiB/3841msec); 0 zone resets clat (msec): min=313, max=2545, avg=1187.08, stdev=1192.58 lat (msec): min=313, max=2546, avg=1187.60, stdev=1192.50 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.57%, ctx=67, majf=0, minf=8 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=4213KiB/s (4314kB/s), 1053KiB/s-3613KiB/s (1079kB/s-3700kB/s), io=16.0MiB (16.8MB), run=3401-3889msec WRITE: bw=6769KiB/s (6931kB/s), 2106KiB/s-3199KiB/s (2157kB/s-3276kB/s), io=32.0MiB (33.6MB), run=3841-4841msec