== sanity test 398b: DIO and buffer IO race ============== 22:25:27 (1787797527) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.62879 s, 7.6 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=144918: Wed Aug 26 22:28:18 2026 read: IOPS=10, BW=40.4KiB/s (41.3kB/s)(5992KiB/148433msec) clat (usec): min=31, max=781316, avg=47075.15, stdev=41875.90 lat (usec): min=31, max=781317, avg=47076.86, stdev=41876.02 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 81], 20.00th=[ 20579], | 30.00th=[ 27132], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 57410], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[185598], 99.50th=[231736], 99.90th=[308282], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 106, per=25.47%, avg=40.25, stdev=17.94, samples=288 iops : min= 1, max= 26, avg= 9.41, stdev= 4.52, samples=288 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6296KiB/148433msec); 0 zone resets clat (usec): min=797, max=410593, avg=49191.00, stdev=50013.73 lat (usec): min=798, max=410595, avg=49196.38, stdev=50015.01 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1532], 20.00th=[ 4490], | 30.00th=[ 9241], 40.00th=[ 21627], 50.00th=[ 36439], 60.00th=[ 50594], | 70.00th=[ 67634], 80.00th=[ 88605], 90.00th=[119014], 95.00th=[147850], | 99.00th=[202376], 99.50th=[231736], 99.90th=[274727], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 119, per=25.41%, avg=42.18, stdev=20.06, samples=289 iops : min= 1, max= 29, avg= 9.90, stdev= 5.05, samples=289 lat (usec) : 50=0.39%, 100=5.08%, 250=0.49%, 750=0.03%, 1000=0.20% lat (msec) : 2=6.25%, 4=3.26%, 10=6.64%, 20=6.80%, 50=32.36% lat (msec) : 100=26.92%, 250=11.26%, 500=0.29%, 1000=0.03% cpu : usr=0.07%, sys=4.56%, ctx=6457, 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=144919: Wed Aug 26 22:28:18 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(5940KiB/148830msec) clat (usec): min=22, max=304590, avg=46479.68, stdev=35891.85 lat (usec): min=22, max=304592, avg=46490.80, stdev=35892.25 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 78], 20.00th=[ 19792], | 30.00th=[ 27132], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 57410], 80.00th=[ 71828], 90.00th=[ 94897], 95.00th=[110625], | 99.00th=[168821], 99.50th=[179307], 99.90th=[270533], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 111, per=25.27%, avg=39.92, stdev=20.07, samples=289 iops : min= 1, max= 27, avg= 9.32, stdev= 5.06, samples=289 write: IOPS=10, BW=42.7KiB/s (43.7kB/s)(6348KiB/148830msec); 0 zone resets clat (usec): min=856, max=863896, avg=49932.35, stdev=56883.95 lat (usec): min=858, max=863897, avg=49936.57, stdev=56885.08 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1336], 20.00th=[ 3589], | 30.00th=[ 8225], 40.00th=[ 20055], 50.00th=[ 33817], 60.00th=[ 49546], | 70.00th=[ 64750], 80.00th=[ 86508], 90.00th=[121111], 95.00th=[154141], | 99.00th=[238027], 99.50th=[270533], 99.90th=[354419], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 103, per=25.38%, avg=42.12, stdev=19.55, samples=292 iops : min= 1, max= 25, avg= 9.88, stdev= 4.93, samples=292 lat (usec) : 50=0.78%, 100=4.95%, 250=0.13%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=7.06%, 4=4.04%, 10=5.63%, 20=7.52%, 50=31.22% lat (msec) : 100=26.50%, 250=11.49%, 500=0.42%, 1000=0.03% cpu : usr=0.07%, sys=4.28%, ctx=6261, 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=144920: Wed Aug 26 22:28:18 2026 read: IOPS=10, BW=40.9KiB/s (41.8kB/s)(6028KiB/147503msec) clat (usec): min=33, max=395183, avg=43969.86, stdev=35551.22 lat (usec): min=34, max=395184, avg=43972.45, stdev=35551.46 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 18220], | 30.00th=[ 25297], 40.00th=[ 31065], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[156238], 99.50th=[187696], 99.90th=[261096], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 7, max= 96, per=26.24%, avg=41.45, stdev=19.00, samples=282 iops : min= 1, max= 24, avg= 9.71, stdev= 4.79, samples=282 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6260KiB/147503msec); 0 zone resets clat (usec): min=925, max=1055.5k, avg=51577.90, stdev=59184.15 lat (usec): min=927, max=1055.5k, avg=51582.78, stdev=59182.09 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1418], | 20.00th=[ 4080], 30.00th=[ 8979], 40.00th=[ 23987], | 50.00th=[ 38536], 60.00th=[ 51119], 70.00th=[ 65799], | 80.00th=[ 88605], 90.00th=[ 122160], 95.00th=[ 156238], | 99.00th=[ 233833], 99.50th=[ 270533], 99.90th=[ 505414], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 112, per=25.46%, avg=42.27, stdev=20.07, samples=287 iops : min= 1, max= 28, avg= 9.92, stdev= 5.07, samples=287 lat (usec) : 50=0.59%, 100=5.53%, 250=0.55%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.45%, 4=3.74%, 10=6.05%, 20=7.03%, 50=32.32% lat (msec) : 100=26.17%, 250=10.84%, 500=0.36%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.50%, ctx=6177, 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=144921: Wed Aug 26 22:28:18 2026 read: IOPS=10, BW=40.1KiB/s (41.0kB/s)(6052KiB/151027msec) clat (usec): min=21, max=361056, avg=46650.40, stdev=38286.78 lat (usec): min=21, max=361058, avg=46654.73, stdev=38288.01 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 73], 20.00th=[ 19268], | 30.00th=[ 25560], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 46400], | 70.00th=[ 58459], 80.00th=[ 72877], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[170918], 99.50th=[202376], 99.90th=[308282], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 111, per=25.72%, avg=40.64, stdev=18.95, samples=288 iops : min= 1, max= 27, avg= 9.51, stdev= 4.78, samples=288 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6236KiB/151027msec); 0 zone resets clat (usec): min=652, max=1086.8k, avg=51244.64, stdev=58759.05 lat (usec): min=653, max=1086.8k, avg=51247.34, stdev=58758.36 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1663], | 20.00th=[ 4359], 30.00th=[ 9896], 40.00th=[ 23987], | 50.00th=[ 36963], 60.00th=[ 50070], 70.00th=[ 68682], | 80.00th=[ 88605], 90.00th=[ 122160], 95.00th=[ 152044], | 99.00th=[ 221250], 99.50th=[ 254804], 99.90th=[ 509608], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 119, per=24.81%, avg=41.18, stdev=20.16, samples=293 iops : min= 1, max= 29, avg= 9.64, stdev= 5.07, samples=293 lat (usec) : 50=0.88%, 100=5.14%, 250=0.68%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.29% lat (msec) : 2=5.50%, 4=3.91%, 10=5.99%, 20=6.97%, 50=31.77% lat (msec) : 100=26.37%, 250=12.01%, 500=0.29%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.50%, ctx=6389, 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=159KiB/s (163kB/s), 39.9KiB/s-40.9KiB/s (40.9kB/s-41.8kB/s), io=23.4MiB (24.6MB), run=147503-151027msec WRITE: bw=166KiB/s (170kB/s), 41.3KiB/s-42.7KiB/s (42.3kB/s-43.7kB/s), io=24.6MiB (25.7MB), run=147503-151027msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144914: Wed Aug 26 22:30:43 2026 read: IOPS=5, BW=20.3KiB/s (20.8kB/s)(5992KiB/295521msec) clat (msec): min=4, max=799, avg=39.16, stdev=49.02 lat (msec): min=4, max=799, avg=39.16, stdev=49.02 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 86], 95.00th=[ 120], | 99.00th=[ 220], 99.50th=[ 309], 99.90th=[ 523], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 93, per=29.26%, avg=23.70, stdev=17.02, samples=487 iops : min= 1, max= 23, avg= 5.28, stdev= 4.29, samples=487 write: IOPS=5, BW=21.3KiB/s (21.8kB/s)(6296KiB/295521msec); 0 zone resets clat (msec): min=40, max=606, avg=150.16, stdev=80.59 lat (msec): min=40, max=606, avg=150.17, stdev=80.60 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 129], 60.00th=[ 148], | 70.00th=[ 171], 80.00th=[ 209], 90.00th=[ 266], 95.00th=[ 313], | 99.00th=[ 430], 99.50th=[ 472], 99.90th=[ 550], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 63, per=25.05%, avg=21.04, stdev=11.07, samples=573 iops : min= 1, max= 15, avg= 4.61, stdev= 2.82, samples=573 lat (msec) : 10=3.39%, 20=16.34%, 50=19.63%, 100=21.88%, 250=32.23% lat (msec) : 500=6.38%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.04%, ctx=5029, 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=144915: Wed Aug 26 22:30:43 2026 read: IOPS=5, BW=20.1KiB/s (20.6kB/s)(5940KiB/295804msec) clat (msec): min=5, max=919, avg=40.09, stdev=49.87 lat (msec): min=5, max=919, avg=40.10, stdev=49.87 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 38], 80.00th=[ 54], 90.00th=[ 89], 95.00th=[ 122], | 99.00th=[ 224], 99.50th=[ 296], 99.90th=[ 456], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 102, per=29.51%, avg=23.90, stdev=16.65, samples=478 iops : min= 1, max= 25, avg= 5.34, stdev= 4.23, samples=478 write: IOPS=5, BW=21.5KiB/s (21.0kB/s)(6348KiB/295804msec); 0 zone resets clat (msec): min=30, max=561, avg=148.57, stdev=78.57 lat (msec): min=30, max=561, avg=148.57, stdev=78.56 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 174], 80.00th=[ 209], 90.00th=[ 262], 95.00th=[ 305], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 502], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 64, per=25.70%, avg=21.59, stdev=11.24, samples=564 iops : min= 1, max= 16, avg= 4.75, stdev= 2.86, samples=564 lat (msec) : 10=3.61%, 20=15.69%, 50=19.17%, 100=22.36%, 250=32.62% lat (msec) : 500=6.45%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.06%, ctx=5207, 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=144916: Wed Aug 26 22:30:43 2026 read: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6028KiB/294855msec) clat (msec): min=4, max=552, avg=42.15, stdev=48.56 lat (msec): min=4, max=552, avg=42.16, stdev=48.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 60], 90.00th=[ 93], 95.00th=[ 131], | 99.00th=[ 249], 99.50th=[ 313], 99.90th=[ 464], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 111, per=29.05%, avg=23.53, stdev=16.82, samples=494 iops : min= 1, max= 27, avg= 5.24, stdev= 4.24, samples=494 write: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6260KiB/294855msec); 0 zone resets clat (msec): min=27, max=1033, avg=147.48, stdev=81.39 lat (msec): min=27, max=1033, avg=147.49, stdev=81.39 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 167], 80.00th=[ 205], 90.00th=[ 259], 95.00th=[ 300], | 99.00th=[ 414], 99.50th=[ 464], 99.90th=[ 584], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 63, per=25.30%, avg=21.25, stdev=11.27, samples=565 iops : min= 1, max= 15, avg= 4.67, stdev= 2.86, samples=565 lat (msec) : 10=3.06%, 20=16.05%, 50=18.62%, 100=23.63%, 250=32.32% lat (msec) : 500=6.12%, 750=0.16%, 2000=0.03% cpu : usr=0.04%, sys=1.05%, ctx=5073, 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=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=144917: Wed Aug 26 22:30:43 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(6052KiB/293590msec) clat (msec): min=5, max=523, avg=40.22, stdev=44.45 lat (msec): min=5, max=523, avg=40.22, stdev=44.45 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 40], 80.00th=[ 57], 90.00th=[ 92], 95.00th=[ 129], | 99.00th=[ 207], 99.50th=[ 284], 99.90th=[ 372], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 7, max= 119, per=29.56%, avg=23.95, stdev=17.45, samples=487 iops : min= 1, max= 29, avg= 5.34, stdev= 4.41, samples=487 write: IOPS=5, BW=21.2KiB/s (21.8kB/s)(6236KiB/293590msec); 0 zone resets clat (msec): min=32, max=1051, avg=148.98, stdev=83.20 lat (msec): min=32, max=1051, avg=148.98, stdev=83.20 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 85], | 30.00th=[ 99], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 144], | 70.00th=[ 169], 80.00th=[ 209], 90.00th=[ 257], 95.00th=[ 305], | 99.00th=[ 405], 99.50th=[ 472], 99.90th=[ 642], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 56, per=25.34%, avg=21.28, stdev=11.12, samples=561 iops : min= 1, max= 14, avg= 4.67, stdev= 2.83, samples=561 lat (msec) : 10=3.48%, 20=16.44%, 50=19.04%, 100=22.17%, 250=32.81% lat (msec) : 500=5.83%, 750=0.20%, 2000=0.03% cpu : usr=0.04%, sys=1.01%, ctx=5045, 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=81.2KiB/s (83.1kB/s), 20.1KiB/s-20.6KiB/s (20.6kB/s-21.1kB/s), io=23.4MiB (24.6MB), run=293590-295804msec WRITE: bw=84.0KiB/s (87.0kB/s), 21.2KiB/s-21.5KiB/s (21.7kB/s-21.0kB/s), io=24.6MiB (25.7MB), run=293590-295804msec 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=144979: Wed Aug 26 22:31:25 2026 read: IOPS=11, BW=191KiB/s (196kB/s)(5920KiB/30924msec) clat (usec): min=38, max=184887, avg=38246.88, stdev=35805.60 lat (usec): min=38, max=184888, avg=38248.05, stdev=35805.57 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 52], 10.00th=[ 58], 20.00th=[ 68], | 30.00th=[ 112], 40.00th=[ 27657], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 54789], 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[166724], 99.50th=[179307], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 506, per=25.58%, avg=190.05, stdev=90.86, samples=60 iops : min= 1, max= 31, avg=11.17, stdev= 5.70, samples=60 write: IOPS=12, BW=206KiB/s (211kB/s)(6368KiB/30924msec); 0 zone resets clat (usec): min=1314, max=355034, avg=42029.64, stdev=48963.63 lat (usec): min=1316, max=355035, avg=42031.45, stdev=48963.64 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1549], 10.00th=[ 1713], 20.00th=[ 4424], | 30.00th=[ 8979], 40.00th=[ 14222], 50.00th=[ 22152], 60.00th=[ 34341], | 70.00th=[ 52691], 80.00th=[ 72877], 90.00th=[114820], 95.00th=[147850], | 99.00th=[191890], 99.50th=[254804], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 30, max= 366, per=26.33%, avg=205.63, stdev=82.17, samples=60 iops : min= 1, max= 22, avg=12.17, stdev= 5.22, samples=60 lat (usec) : 50=2.34%, 100=11.98%, 250=0.65%, 500=0.26% lat (msec) : 2=6.90%, 4=3.26%, 10=7.55%, 20=7.29%, 50=27.08% lat (msec) : 100=22.92%, 250=9.51%, 500=0.26% cpu : usr=0.05%, sys=4.77%, ctx=1192, 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=144980: Wed Aug 26 22:31:25 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(5744KiB/31799msec) clat (usec): min=37, max=411387, avg=40919.78, stdev=43042.84 lat (usec): min=37, max=411389, avg=40922.02, stdev=43043.29 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 48], 10.00th=[ 58], 20.00th=[ 66], | 30.00th=[ 85], 40.00th=[ 26870], 50.00th=[ 40109], 60.00th=[ 48497], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[106431], | 99.00th=[160433], 99.50th=[202376], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 55, max= 416, per=25.48%, avg=189.34, stdev=84.47, samples=59 iops : min= 3, max= 26, avg=11.12, stdev= 5.30, samples=59 write: IOPS=12, BW=206KiB/s (211kB/s)(6544KiB/31799msec); 0 zone resets clat (usec): min=1327, max=327719, avg=41765.67, stdev=52852.21 lat (usec): min=1328, max=327721, avg=41767.76, stdev=52852.23 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1631], 10.00th=[ 1860], 20.00th=[ 4228], | 30.00th=[ 6849], 40.00th=[ 9896], 50.00th=[ 17695], 60.00th=[ 32375], | 70.00th=[ 50070], 80.00th=[ 71828], 90.00th=[114820], 95.00th=[145753], | 99.00th=[240124], 99.50th=[265290], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 63, max= 541, per=26.27%, avg=205.15, stdev=104.06, samples=62 iops : min= 3, max= 33, avg=12.15, stdev= 6.59, samples=62 lat (usec) : 50=2.47%, 100=13.15%, 250=0.78%, 500=0.26% lat (msec) : 2=6.38%, 4=3.52%, 10=11.46%, 20=6.77%, 50=21.88% lat (msec) : 100=23.05%, 250=9.77%, 500=0.52% cpu : usr=0.06%, sys=4.23%, ctx=1177, 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=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=144981: Wed Aug 26 22:31:25 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6256KiB/32233msec) clat (usec): min=34, max=255493, avg=42154.25, stdev=41239.60 lat (usec): min=34, max=255494, avg=42155.31, stdev=41239.60 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 51], 10.00th=[ 59], 20.00th=[ 67], | 30.00th=[ 506], 40.00th=[ 27395], 50.00th=[ 35914], 60.00th=[ 45876], | 70.00th=[ 56886], 80.00th=[ 76022], 90.00th=[ 98042], 95.00th=[122160], | 99.00th=[173016], 99.50th=[198181], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 31, max= 446, per=26.26%, avg=195.10, stdev=92.06, samples=63 iops : min= 1, max= 27, avg=11.49, stdev= 5.76, samples=63 write: IOPS=11, BW=187KiB/s (192kB/s)(6032KiB/32233msec); 0 zone resets clat (usec): min=1423, max=248968, avg=41506.84, stdev=47713.27 lat (usec): min=1425, max=248971, avg=41513.58, stdev=47716.19 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1696], 10.00th=[ 1844], 20.00th=[ 4424], | 30.00th=[ 8356], 40.00th=[ 14353], 50.00th=[ 24773], 60.00th=[ 36439], | 70.00th=[ 52167], 80.00th=[ 73925], 90.00th=[107480], 95.00th=[135267], | 99.00th=[223347], 99.50th=[244319], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 32, max= 446, per=23.80%, avg=185.90, stdev=87.27, samples=63 iops : min= 2, max= 27, avg=10.92, stdev= 5.45, samples=63 lat (usec) : 50=2.47%, 100=11.46%, 250=0.65%, 500=0.65%, 750=0.26% lat (msec) : 2=5.99%, 4=3.78%, 10=7.81%, 20=6.38%, 50=26.95% lat (msec) : 100=22.92%, 250=10.55%, 500=0.13% cpu : usr=0.08%, sys=4.52%, ctx=1270, 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=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=144982: Wed Aug 26 22:31:25 2026 read: IOPS=11, BW=190KiB/s (195kB/s)(6032KiB/31668msec) clat (usec): min=33, max=281700, avg=41205.16, stdev=40917.80 lat (usec): min=33, max=281702, avg=41206.21, stdev=40917.82 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 56], 20.00th=[ 65], | 30.00th=[ 85], 40.00th=[ 24773], 50.00th=[ 38011], 60.00th=[ 49546], | 70.00th=[ 58983], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[111674], | 99.00th=[154141], 99.50th=[202376], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 474, per=25.45%, avg=189.06, stdev=83.52, samples=62 iops : min= 1, max= 29, avg=11.11, stdev= 5.25, samples=62 write: IOPS=12, BW=198KiB/s (202kB/s)(6256KiB/31668msec); 0 zone resets clat (usec): min=1320, max=301294, avg=41092.57, stdev=47824.84 lat (usec): min=1322, max=301296, avg=41102.37, stdev=47833.49 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1598], 10.00th=[ 1958], 20.00th=[ 4490], | 30.00th=[ 8291], 40.00th=[ 14484], 50.00th=[ 25297], 60.00th=[ 33817], | 70.00th=[ 49021], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[149947], | 99.00th=[210764], 99.50th=[246416], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 30, max= 376, per=25.22%, avg=196.94, stdev=89.75, samples=62 iops : min= 1, max= 23, avg=11.63, stdev= 5.65, samples=62 lat (usec) : 50=2.99%, 100=12.50%, 250=0.65% lat (msec) : 2=5.73%, 4=4.30%, 10=7.03%, 20=8.20%, 50=23.83% lat (msec) : 100=25.52%, 250=8.98%, 500=0.26% cpu : usr=0.06%, sys=4.81%, ctx=1242, 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=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=743KiB/s (761kB/s), 181KiB/s-194KiB/s (185kB/s-199kB/s), io=23.4MiB (24.5MB), run=30924-32233msec WRITE: bw=782KiB/s (801kB/s), 187KiB/s-206KiB/s (192kB/s-211kB/s), io=24.6MiB (25.8MB), run=30924-32233msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144974: Wed Aug 26 22:32:13 2026 read: IOPS=4, BW=74.1KiB/s (75.9kB/s)(5920KiB/79858msec) clat (msec): min=7, max=416, avg=41.94, stdev=43.60 lat (msec): min=7, max=416, avg=41.94, stdev=43.60 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 55], 90.00th=[ 92], 95.00th=[ 142], | 99.00th=[ 176], 99.50th=[ 296], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 29, max= 319, per=29.00%, avg=85.85, stdev=54.90, samples=136 iops : min= 1, max= 19, avg= 4.62, stdev= 3.53, samples=136 write: IOPS=4, BW=79.7KiB/s (81.7kB/s)(6368KiB/79858msec); 0 zone resets clat (msec): min=40, max=463, avg=161.31, stdev=80.44 lat (msec): min=40, max=463, avg=161.32, stdev=80.44 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 75], 10.00th=[ 86], 20.00th=[ 104], | 30.00th=[ 112], 40.00th=[ 126], 50.00th=[ 138], 60.00th=[ 153], | 70.00th=[ 176], 80.00th=[ 211], 90.00th=[ 288], 95.00th=[ 342], | 99.00th=[ 439], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 160, per=26.25%, avg=81.91, stdev=37.16, samples=153 iops : min= 1, max= 10, avg= 4.34, stdev= 2.40, samples=153 lat (msec) : 10=1.56%, 20=14.32%, 50=22.27%, 100=15.23%, 250=39.06% lat (msec) : 500=7.55% cpu : usr=0.03%, sys=1.01%, ctx=1275, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144975: Wed Aug 26 22:32:13 2026 read: IOPS=4, BW=71.2KiB/s (72.9kB/s)(5744KiB/80655msec) clat (msec): min=7, max=260, avg=40.04, stdev=37.74 lat (msec): min=7, max=260, avg=40.04, stdev=37.74 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 93], 95.00th=[ 123], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 30, max= 351, per=28.66%, avg=84.83, stdev=57.38, samples=132 iops : min= 1, max= 21, avg= 4.55, stdev= 3.62, samples=132 write: IOPS=5, BW=81.1KiB/s (83.1kB/s)(6544KiB/80655msec); 0 zone resets clat (msec): min=49, max=565, avg=161.92, stdev=85.12 lat (msec): min=49, max=565, avg=161.92, stdev=85.12 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 97], | 30.00th=[ 113], 40.00th=[ 125], 50.00th=[ 142], 60.00th=[ 157], | 70.00th=[ 180], 80.00th=[ 213], 90.00th=[ 279], 95.00th=[ 351], | 99.00th=[ 451], 99.50th=[ 477], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 29, max= 191, per=26.62%, avg=83.05, stdev=37.31, samples=154 iops : min= 1, max= 11, avg= 4.42, stdev= 2.41, samples=154 lat (msec) : 10=0.52%, 20=11.85%, 50=25.39%, 100=17.19%, 250=38.02% lat (msec) : 500=6.77%, 750=0.26% cpu : usr=0.03%, sys=0.94%, ctx=1271, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144976: Wed Aug 26 22:32:13 2026 read: IOPS=5, BW=80.2KiB/s (82.1kB/s)(6256KiB/78028msec) clat (msec): min=6, max=353, avg=40.08, stdev=42.08 lat (msec): min=6, max=353, avg=40.08, stdev=42.08 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 49], 90.00th=[ 85], 95.00th=[ 123], | 99.00th=[ 239], 99.50th=[ 268], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 29, max= 352, per=31.15%, avg=92.22, stdev=65.33, samples=134 iops : min= 1, max= 22, avg= 5.00, stdev= 4.16, samples=134 write: IOPS=4, BW=77.3KiB/s (79.2kB/s)(6032KiB/78028msec); 0 zone resets clat (msec): min=45, max=559, avg=164.92, stdev=86.22 lat (msec): min=45, max=559, avg=164.93, stdev=86.22 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 84], 20.00th=[ 101], | 30.00th=[ 114], 40.00th=[ 129], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 184], 80.00th=[ 218], 90.00th=[ 268], 95.00th=[ 342], | 99.00th=[ 498], 99.50th=[ 531], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 29, max= 191, per=25.71%, avg=80.22, stdev=37.06, samples=148 iops : min= 1, max= 11, avg= 4.24, stdev= 2.38, samples=148 lat (msec) : 10=1.56%, 20=15.76%, 50=24.22%, 100=15.10%, 250=37.37% lat (msec) : 500=5.60%, 750=0.39% cpu : usr=0.05%, sys=1.02%, ctx=1287, 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=144977: Wed Aug 26 22:32:13 2026 read: IOPS=4, BW=76.4KiB/s (78.2kB/s)(6032KiB/78991msec) clat (msec): min=7, max=371, avg=41.36, stdev=42.55 lat (msec): min=7, max=371, avg=41.36, stdev=42.55 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 53], 90.00th=[ 90], 95.00th=[ 122], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 30, max= 256, per=31.09%, avg=92.02, stdev=53.76, samples=128 iops : min= 1, max= 16, avg= 4.99, stdev= 3.42, samples=128 write: IOPS=4, BW=79.2KiB/s (81.1kB/s)(6256KiB/78991msec); 0 zone resets clat (msec): min=49, max=552, avg=161.67, stdev=80.34 lat (msec): min=49, max=552, avg=161.67, stdev=80.34 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 78], 10.00th=[ 89], 20.00th=[ 105], | 30.00th=[ 116], 40.00th=[ 128], 50.00th=[ 138], 60.00th=[ 157], | 70.00th=[ 178], 80.00th=[ 203], 90.00th=[ 266], 95.00th=[ 330], | 99.00th=[ 498], 99.50th=[ 542], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 29, max= 191, per=25.97%, avg=81.01, stdev=35.68, samples=152 iops : min= 1, max= 11, avg= 4.29, stdev= 2.33, samples=152 lat (msec) : 10=1.17%, 20=13.80%, 50=23.31%, 100=15.23%, 250=39.84% lat (msec) : 500=6.25%, 750=0.39% cpu : usr=0.04%, sys=1.02%, ctx=1295, 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=297KiB/s (304kB/s), 71.2KiB/s-80.2KiB/s (72.9kB/s-82.1kB/s), io=23.4MiB (24.5MB), run=78028-80655msec WRITE: bw=312KiB/s (320kB/s), 77.3KiB/s-81.1KiB/s (79.2kB/s-83.1kB/s), io=24.6MiB (25.8MB), run=78028-80655msec 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=145003: Wed Aug 26 22:32:28 2026 read: IOPS=1, BW=1486KiB/s (1522kB/s)(7168KiB/4824msec) clat (msec): min=87, max=628, avg=224.31, stdev=187.02 lat (msec): min=87, max=628, avg=224.31, stdev=187.02 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 100], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 186], 60.00th=[ 190], | 70.00th=[ 190], 80.00th=[ 247], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1790, max= 4800, per=75.58%, avg=2665.00, stdev=1428.03, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1061KiB/s (1087kB/s)(5120KiB/4824msec); 0 zone resets clat (msec): min=342, max=1421, avg=625.76, stdev=453.78 lat (msec): min=343, max=1421, avg=625.93, stdev=453.74 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 2019, max= 2043, per=41.17%, avg=2032.60, stdev= 9.63, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=2.80%, ctx=68, 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=145004: Wed Aug 26 22:32:28 2026 read: IOPS=0, BW=353KiB/s (361kB/s)(2048KiB/5807msec) clat (msec): min=86, max=240, avg=163.38, stdev=109.41 lat (msec): min=86, max=240, avg=163.38, stdev=109.41 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 87], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 1565, max= 1984, per=50.33%, avg=1774.50, stdev=296.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1763KiB/s (1806kB/s)(10.0MiB/5807msec); 0 zone resets clat (msec): min=228, max=1328, avg=543.88, stdev=403.58 lat (msec): min=228, max=1328, avg=544.00, stdev=403.58 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 230], | 30.00th=[ 234], 40.00th=[ 292], 50.00th=[ 313], 60.00th=[ 409], | 70.00th=[ 558], 80.00th=[ 667], 90.00th=[ 1183], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1565, max= 3657, per=50.15%, avg=2476.00, stdev=902.73, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=3.32%, ctx=75, 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=145005: Wed Aug 26 22:32:28 2026 read: IOPS=1, BW=1145KiB/s (1173kB/s)(6144KiB/5365msec) clat (msec): min=148, max=687, avg=378.95, stdev=246.24 lat (msec): min=148, max=687, avg=378.96, stdev=246.24 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 326], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1828, max= 4039, per=70.31%, avg=2479.25, stdev=1044.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1145KiB/s (1173kB/s)(6144KiB/5365msec); 0 zone resets clat (msec): min=222, max=890, avg=493.63, stdev=288.88 lat (msec): min=222, max=890, avg=493.75, stdev=288.93 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 472], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1828, max= 3271, per=45.32%, avg=2237.60, stdev=584.31, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.31%, ctx=50, 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=145006: Wed Aug 26 22:32:28 2026 read: IOPS=0, BW=890KiB/s (912kB/s)(5120KiB/5751msec) clat (msec): min=98, max=1221, avg=483.47, stdev=507.41 lat (msec): min=98, max=1221, avg=483.47, stdev=507.41 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1984, max= 4079, per=76.37%, avg=2692.67, stdev=1200.70, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1246KiB/s (1276kB/s)(7168KiB/5751msec); 0 zone resets clat (msec): min=162, max=1092, avg=455.85, stdev=325.72 lat (msec): min=163, max=1092, avg=456.12, stdev=325.60 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 236], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 351], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 676], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1610, max= 2043, per=37.70%, avg=1861.20, stdev=182.02, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=8.33% lat (msec) : 2000=16.67% cpu : usr=0.05%, sys=2.94%, ctx=93, 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=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=3527KiB/s (3611kB/s), 353KiB/s-1486KiB/s (361kB/s-1522kB/s), io=20.0MiB (20.0MB), run=4824-5807msec WRITE: bw=4937KiB/s (5056kB/s), 1061KiB/s-1763KiB/s (1087kB/s-1806kB/s), io=28.0MiB (29.4MB), run=4824-5807msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145008: Wed Aug 26 22:32:28 2026 read: IOPS=1, BW=1658KiB/s (1698kB/s)(7168KiB/4324msec) clat (usec): min=1927, max=306841, avg=218710.08, stdev=102097.15 lat (usec): min=1929, max=306844, avg=218711.79, stdev=102097.13 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 1926], 10.00th=[ 1926], 20.00th=[204473], | 30.00th=[214959], 40.00th=[214959], 50.00th=[256902], 60.00th=[263193], | 70.00th=[263193], 80.00th=[283116], 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= 2011, max= 4087, per=73.17%, avg=2913.00, stdev=1047.50, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1184KiB/s (1213kB/s)(5120KiB/4324msec); 0 zone resets clat (msec): min=254, max=1207, avg=558.16, stdev=378.69 lat (msec): min=254, max=1207, avg=558.25, stdev=378.71 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1861, max= 2048, per=35.86%, avg=1998.75, stdev=91.86, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 2=8.33%, 250=16.67%, 500=58.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.24%, ctx=186, 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=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=145009: Wed Aug 26 22:32:28 2026 read: IOPS=0, BW=398KiB/s (408kB/s)(2048KiB/5144msec) clat (msec): min=2, max=298, avg=150.27, stdev=209.64 lat (msec): min=2, max=298, avg=150.28, stdev=209.64 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 3], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 2011, max= 2043, per=50.92%, avg=2027.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1991KiB/s (2038kB/s)(10.0MiB/5144msec); 0 zone resets clat (msec): min=116, max=966, avg=484.11, stdev=314.18 lat (msec): min=116, max=966, avg=484.23, stdev=314.15 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 118], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 372], 60.00th=[ 502], | 70.00th=[ 506], 80.00th=[ 802], 90.00th=[ 919], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1861, max= 4079, per=53.86%, avg=3001.67, stdev=1119.22, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 4=8.33%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=11.10%, ctx=131, 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=145010: Wed Aug 26 22:32:28 2026 read: IOPS=1, BW=1271KiB/s (1302kB/s)(6144KiB/4833msec) clat (usec): min=1571, max=458913, avg=158149.21, stdev=161948.18 lat (usec): min=1572, max=458914, avg=158150.90, stdev=161947.93 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1565], 10.00th=[ 1565], 20.00th=[ 52167], | 30.00th=[ 52167], 40.00th=[ 96994], 50.00th=[ 96994], 60.00th=[147850], | 70.00th=[189793], 80.00th=[189793], 90.00th=[459277], 95.00th=[459277], | 99.00th=[459277], 99.50th=[459277], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 2011, max= 3723, per=61.67%, avg=2455.00, stdev=845.47, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1271KiB/s (1302kB/s)(6144KiB/4833msec); 0 zone resets clat (msec): min=257, max=1140, avg=646.90, stdev=380.78 lat (msec): min=257, max=1140, avg=647.13, stdev=380.91 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 877], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1861, max= 3574, per=42.57%, avg=2372.25, stdev=805.09, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 100=16.67%, 250=16.67%, 500=33.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=9.23%, ctx=201, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145011: Wed Aug 26 22:32:28 2026 read: IOPS=1, BW=1180KiB/s (1209kB/s)(5120KiB/4338msec) clat (usec): min=673, max=420749, avg=169116.73, stdev=179138.17 lat (usec): min=689, max=420751, avg=169123.61, stdev=179131.77 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 685], 40.00th=[ 685], 50.00th=[162530], 60.00th=[162530], | 70.00th=[261096], 80.00th=[261096], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 7447, max= 7447, per=100.00%, avg=7447.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1652KiB/s (1692kB/s)(7168KiB/4338msec); 0 zone resets clat (msec): min=277, max=854, avg=498.67, stdev=205.81 lat (msec): min=277, max=854, avg=498.74, stdev=205.81 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 338], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 435], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 693], 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= 1793, max= 4087, per=49.98%, avg=2785.20, stdev=1163.02, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=8.33%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=9.41%, ctx=143, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3981KiB/s (4077kB/s), 398KiB/s-1658KiB/s (408kB/s-1698kB/s), io=20.0MiB (20.0MB), run=4324-5144msec WRITE: bw=5574KiB/s (5708kB/s), 1184KiB/s-1991KiB/s (1213kB/s-2038kB/s), io=28.0MiB (29.4MB), run=4324-5144msec 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=145018: Wed Aug 26 22:32:44 2026 read: IOPS=1, BW=4855KiB/s (4972kB/s)(12.0MiB/2531msec) clat (msec): min=262, max=1569, avg=762.56, stdev=705.16 lat (msec): min=262, max=1569, avg=762.56, stdev=705.16 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 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= 5979, max= 7787, per=100.00%, avg=6883.00, stdev=1278.45, 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=3.99%, ctx=64, 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=145019: Wed Aug 26 22:32:44 2026 read: IOPS=0, BW=1938KiB/s (1984kB/s)(4096KiB/2114msec) clat (nsec): min=599205k, max=599205k, avg=599204542.00, stdev= 0.00 lat (nsec): min=599207k, max=599207k, avg=599206807.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7787, max= 7787, per=100.00%, avg=7787.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3875KiB/s (3968kB/s)(8192KiB/2114msec); 0 zone resets clat (msec): min=569, max=725, avg=647.25, stdev=110.64 lat (msec): min=569, max=728, avg=648.77, stdev=112.22 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8110, max= 8110, per=91.70%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=4.78%, ctx=49, 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=145020: Wed Aug 26 22:32:44 2026 write: IOPS=0, BW=3317KiB/s (3396kB/s)(12.0MiB/3705msec); 0 zone resets clat (msec): min=1037, max=1222, avg=1144.20, stdev=95.43 lat (msec): min=1038, max=1222, avg=1144.69, stdev=95.54 clat percentiles (msec): | 1.00th=[ 1036], 5.00th=[ 1036], 10.00th=[ 1036], 20.00th=[ 1036], | 30.00th=[ 1036], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8110, max= 8192, per=92.16%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=2.81%, 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=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=145021: Wed Aug 26 22:32:44 2026 write: IOPS=0, BW=3693KiB/s (3782kB/s)(12.0MiB/3327msec); 0 zone resets clat (msec): min=541, max=1951, avg=1035.25, stdev=794.03 lat (msec): min=543, max=1951, avg=1036.48, stdev=793.20 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 1955], 80.00th=[ 1955], 90.00th=[ 1955], 95.00th=[ 1955], | 99.00th=[ 1955], 99.50th=[ 1955], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7787, max= 8110, per=89.87%, avg=7948.50, stdev=228.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.19%, ctx=53, 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=6473KiB/s (6629kB/s), 1938KiB/s-4855KiB/s (1984kB/s-4972kB/s), io=16.0MiB (16.8MB), run=2114-2531msec WRITE: bw=8844KiB/s (9057kB/s), 3317KiB/s-3875KiB/s (3396kB/s-3968kB/s), io=32.0MiB (33.6MB), run=2114-3705msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145023: Wed Aug 26 22:32:45 2026 read: IOPS=0, BW=3835KiB/s (3927kB/s)(12.0MiB/3204msec) clat (msec): min=769, max=1243, avg=1067.61, stdev=259.55 lat (msec): min=769, max=1243, avg=1067.61, stdev=259.55 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 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= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, 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=7.06%, ctx=229, 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=145024: Wed Aug 26 22:32:45 2026 read: IOPS=0, BW=1076KiB/s (1102kB/s)(4096KiB/3807msec) clat (nsec): min=1276.6M, max=1276.6M, avg=1276602786.00, stdev= 0.00 lat (nsec): min=1276.6M, max=1276.6M, avg=1276604540.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 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= 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=2152KiB/s (2203kB/s)(8192KiB/3807msec); 0 zone resets clat (msec): min=1090, max=1431, avg=1260.97, stdev=240.52 lat (msec): min=1091, max=1438, avg=1264.64, stdev=245.43 clat percentiles (msec): | 1.00th=[ 1099], 5.00th=[ 1099], 10.00th=[ 1099], 20.00th=[ 1099], | 30.00th=[ 1099], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8159, max= 8159, per=94.79%, avg=8159.00, 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=0.16%, sys=3.99%, ctx=138, 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=145025: Wed Aug 26 22:32:45 2026 write: IOPS=0, BW=3539KiB/s (3624kB/s)(12.0MiB/3472msec); 0 zone resets clat (msec): min=713, max=1661, avg=1153.18, stdev=477.87 lat (msec): min=715, max=1670, avg=1156.63, stdev=481.59 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8031, max= 8159, per=94.05%, avg=8095.00, stdev=90.51, 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=4.96%, ctx=63, 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=145026: Wed Aug 26 22:32:45 2026 write: IOPS=0, BW=3257KiB/s (3335kB/s)(12.0MiB/3773msec); 0 zone resets clat (msec): min=342, max=2218, avg=1249.76, stdev=939.47 lat (msec): min=344, max=2219, avg=1250.96, stdev=939.03 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8000, max= 8192, per=94.06%, avg=8096.00, stdev=135.76, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=2.89%, ctx=45, 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=4304KiB/s (4407kB/s), 1076KiB/s-3835KiB/s (1102kB/s-3927kB/s), io=16.0MiB (16.8MB), run=3204-3807msec WRITE: bw=8607KiB/s (8814kB/s), 2152KiB/s-3539KiB/s (2203kB/s-3624kB/s), io=32.0MiB (33.6MB), run=3472-3807msec