== sanity test 398b: DIO and buffer IO race ============== 09:10:54 (1789132254) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.03144 s, 8.3 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=143477: Fri Sep 11 09:13:41 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5992KiB/143423msec) clat (usec): min=37, max=428397, avg=47967.27, stdev=36887.33 lat (usec): min=37, max=428398, avg=47970.52, stdev=36886.62 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 70], 10.00th=[ 9634], 20.00th=[ 22676], | 30.00th=[ 28705], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 57934], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[158335], 99.50th=[185598], 99.90th=[413139], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 101, per=25.56%, avg=41.66, stdev=17.65, samples=279 iops : min= 1, max= 25, avg= 9.76, stdev= 4.43, samples=279 write: IOPS=10, BW=43.9KiB/s (44.0kB/s)(6296KiB/143423msec); 0 zone resets clat (usec): min=779, max=923422, avg=44990.91, stdev=51325.76 lat (usec): min=781, max=923424, avg=44997.53, stdev=51326.90 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1319], 10.00th=[ 1598], 20.00th=[ 4817], | 30.00th=[ 11207], 40.00th=[ 22414], 50.00th=[ 32113], 60.00th=[ 42730], | 70.00th=[ 57934], 80.00th=[ 74974], 90.00th=[105382], 95.00th=[132645], | 99.00th=[210764], 99.50th=[246416], 99.90th=[467665], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 102, per=25.51%, avg=43.62, stdev=19.90, samples=280 iops : min= 1, max= 25, avg=10.25, stdev= 5.00, samples=280 lat (usec) : 50=0.36%, 100=3.61%, 250=0.49%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.12%, 4=2.80%, 10=6.18%, 20=7.49%, 50=36.39% lat (msec) : 100=27.05%, 250=8.89%, 500=0.36%, 1000=0.03% cpu : usr=0.09%, sys=4.87%, ctx=6303, 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=143478: Fri Sep 11 09:13:41 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5940KiB/144702msec) clat (usec): min=33, max=410093, avg=48904.70, stdev=35634.87 lat (usec): min=33, max=410094, avg=48906.47, stdev=35635.07 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 12911], 20.00th=[ 22938], | 30.00th=[ 30016], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[106431], | 99.00th=[164627], 99.50th=[204473], 99.90th=[304088], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 5, max= 87, per=25.10%, avg=40.91, stdev=18.10, samples=282 iops : min= 1, max= 21, avg= 9.58, stdev= 4.55, samples=282 write: IOPS=10, BW=43.9KiB/s (44.9kB/s)(6348KiB/144702msec); 0 zone resets clat (usec): min=990, max=890846, avg=44917.56, stdev=50538.11 lat (usec): min=992, max=890847, avg=44942.96, stdev=50553.09 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1352], 10.00th=[ 1860], 20.00th=[ 5211], | 30.00th=[ 9765], 40.00th=[ 20055], 50.00th=[ 32113], 60.00th=[ 43254], | 70.00th=[ 58983], 80.00th=[ 74974], 90.00th=[107480], 95.00th=[135267], | 99.00th=[204473], 99.50th=[235930], 99.90th=[404751], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 151, per=25.51%, avg=43.62, stdev=21.94, samples=283 iops : min= 1, max= 37, avg=10.26, stdev= 5.51, samples=283 lat (usec) : 50=0.13%, 100=3.45%, 250=0.33%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.53%, 4=2.99%, 10=7.36%, 20=8.27%, 50=34.24% lat (msec) : 100=28.16%, 250=9.08%, 500=0.26%, 1000=0.03% cpu : usr=0.09%, sys=4.88%, ctx=6294, 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=143481: Fri Sep 11 09:13:41 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6028KiB/145034msec) clat (usec): min=32, max=942512, avg=46820.90, stdev=41183.89 lat (usec): min=33, max=942514, avg=46833.85, stdev=41190.52 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 8717], 20.00th=[ 21890], | 30.00th=[ 28181], 40.00th=[ 33424], 50.00th=[ 39584], 60.00th=[ 46924], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[156238], 99.50th=[187696], 99.90th=[354419], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 7, max= 95, per=25.40%, avg=41.40, stdev=18.73, samples=282 iops : min= 1, max= 23, avg= 9.70, stdev= 4.69, samples=282 write: IOPS=10, BW=43.2KiB/s (44.2kB/s)(6260KiB/145034msec); 0 zone resets clat (usec): min=954, max=359271, avg=47139.82, stdev=48111.37 lat (usec): min=955, max=359272, avg=47156.22, stdev=48105.84 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1696], 20.00th=[ 5211], | 30.00th=[ 10028], 40.00th=[ 22414], 50.00th=[ 35390], 60.00th=[ 48497], | 70.00th=[ 63177], 80.00th=[ 81265], 90.00th=[110625], 95.00th=[135267], | 99.00th=[221250], 99.50th=[252707], 99.90th=[354419], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 108, per=24.89%, avg=42.56, stdev=18.14, samples=284 iops : min= 1, max= 27, avg= 9.99, stdev= 4.58, samples=284 lat (usec) : 50=0.33%, 100=3.65%, 250=0.42%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=5.60%, 4=3.32%, 10=6.58%, 20=7.78%, 50=34.47% lat (msec) : 100=27.80%, 250=9.38%, 500=0.36%, 1000=0.03% cpu : usr=0.09%, sys=4.70%, ctx=6432, 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=143483: Fri Sep 11 09:13:41 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6052KiB/146760msec) clat (usec): min=31, max=983585, avg=48404.82, stdev=45376.75 lat (usec): min=31, max=983587, avg=48410.68, stdev=45379.06 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 178], 20.00th=[ 20841], | 30.00th=[ 27919], 40.00th=[ 34341], 50.00th=[ 41157], 60.00th=[ 47973], | 70.00th=[ 57410], 80.00th=[ 70779], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[175113], 99.50th=[233833], 99.90th=[497026], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 6, max= 126, per=25.42%, avg=41.43, stdev=20.33, samples=284 iops : min= 1, max= 31, avg= 9.71, stdev= 5.12, samples=284 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(6236KiB/146760msec); 0 zone resets clat (usec): min=885, max=442715, avg=46691.84, stdev=50584.80 lat (usec): min=886, max=442717, avg=46700.69, stdev=50593.81 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 1532], 20.00th=[ 4621], | 30.00th=[ 9503], 40.00th=[ 22414], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 59507], 80.00th=[ 79168], 90.00th=[110625], 95.00th=[143655], | 99.00th=[210764], 99.50th=[256902], 99.90th=[429917], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 7, max= 132, per=24.60%, avg=42.07, stdev=20.47, samples=288 iops : min= 1, max= 33, avg= 9.87, stdev= 5.14, samples=288 lat (usec) : 50=0.46%, 100=3.91%, 250=0.68%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.48%, 4=2.86%, 10=6.77%, 20=7.42%, 50=33.98% lat (msec) : 100=27.25%, 250=9.60%, 500=0.42%, 1000=0.03% cpu : usr=0.09%, sys=4.63%, ctx=6391, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=164KiB/s (168kB/s), 41.0KiB/s-41.8KiB/s (42.0kB/s-42.8kB/s), io=23.4MiB (24.6MB), run=143423-146760msec WRITE: bw=171KiB/s (175kB/s), 42.5KiB/s-43.9KiB/s (43.5kB/s-44.0kB/s), io=24.6MiB (25.7MB), run=143423-146760msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143479: Fri Sep 11 09:16:13 2026 read: IOPS=5, BW=20.1KiB/s (20.6kB/s)(5992KiB/298441msec) clat (msec): min=6, max=888, avg=38.45, stdev=47.29 lat (msec): min=6, max=888, avg=38.46, stdev=47.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 83], 95.00th=[ 117], | 99.00th=[ 218], 99.50th=[ 249], 99.90th=[ 460], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 95, per=29.33%, avg=23.46, stdev=16.08, samples=491 iops : min= 1, max= 23, avg= 5.23, stdev= 4.06, samples=491 write: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6296KiB/298441msec); 0 zone resets clat (msec): min=37, max=615, avg=152.60, stdev=77.18 lat (msec): min=37, max=615, avg=152.60, stdev=77.18 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 91], | 30.00th=[ 105], 40.00th=[ 121], 50.00th=[ 136], 60.00th=[ 150], | 70.00th=[ 174], 80.00th=[ 205], 90.00th=[ 257], 95.00th=[ 305], | 99.00th=[ 418], 99.50th=[ 464], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 55, per=24.75%, avg=20.79, stdev=10.23, samples=579 iops : min= 1, max= 13, avg= 4.56, stdev= 2.62, samples=579 lat (msec) : 10=3.03%, 20=16.31%, 50=20.21%, 100=19.89%, 250=34.73% lat (msec) : 500=5.70%, 750=0.10%, 1000=0.03% cpu : usr=0.05%, sys=1.08%, ctx=5087, 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=143480: Fri Sep 11 09:16:13 2026 read: IOPS=4, BW=19.9KiB/s (20.3kB/s)(5940KiB/298983msec) clat (msec): min=5, max=1016, avg=37.07, stdev=45.10 lat (msec): min=5, max=1016, avg=37.07, stdev=45.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 84], 95.00th=[ 111], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 397], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 95, per=29.14%, avg=23.31, stdev=16.20, samples=491 iops : min= 1, max= 23, avg= 5.19, stdev= 4.09, samples=491 write: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6348KiB/298983msec); 0 zone resets clat (msec): min=38, max=618, avg=153.32, stdev=77.64 lat (msec): min=38, max=618, avg=153.32, stdev=77.64 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 94], | 30.00th=[ 107], 40.00th=[ 121], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 171], 80.00th=[ 203], 90.00th=[ 257], 95.00th=[ 305], | 99.00th=[ 414], 99.50th=[ 481], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 55, per=24.96%, avg=20.97, stdev=10.21, samples=581 iops : min= 1, max= 13, avg= 4.60, stdev= 2.60, samples=581 lat (msec) : 10=2.64%, 20=16.93%, 50=20.44%, 100=18.03%, 250=36.00% lat (msec) : 500=5.76%, 750=0.16%, 2000=0.03% cpu : usr=0.04%, sys=1.11%, ctx=5038, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143482: Fri Sep 11 09:16:13 2026 read: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6028KiB/295136msec) clat (msec): min=4, max=384, avg=38.56, stdev=39.88 lat (msec): min=4, max=384, avg=38.57, stdev=39.88 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=[ 30], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 85], 95.00th=[ 116], | 99.00th=[ 203], 99.50th=[ 243], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 103, per=28.83%, avg=23.07, stdev=16.32, samples=503 iops : min= 1, max= 25, avg= 5.14, stdev= 4.11, samples=503 write: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6260KiB/295136msec); 0 zone resets clat (msec): min=27, max=1045, avg=151.06, stdev=80.01 lat (msec): min=27, max=1045, avg=151.07, stdev=80.01 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 78], 20.00th=[ 90], | 30.00th=[ 103], 40.00th=[ 115], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 205], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 409], 99.50th=[ 489], 99.90th=[ 600], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 63, per=25.12%, avg=21.10, stdev=10.62, samples=569 iops : min= 1, max= 15, avg= 4.64, stdev= 2.71, samples=569 lat (msec) : 10=2.60%, 20=16.80%, 50=19.40%, 100=21.42%, 250=34.34% lat (msec) : 500=5.27%, 750=0.13%, 2000=0.03% cpu : usr=0.05%, sys=1.11%, ctx=5167, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143484: Fri Sep 11 09:16:13 2026 read: IOPS=5, BW=20.4KiB/s (20.9kB/s)(6052KiB/296440msec) clat (msec): min=5, max=413, avg=36.89, stdev=38.79 lat (msec): min=5, max=413, avg=36.89, stdev=38.79 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 84], 95.00th=[ 115], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 296], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 103, per=29.80%, avg=23.84, stdev=16.08, samples=489 iops : min= 1, max= 25, avg= 5.33, stdev= 4.06, samples=489 write: IOPS=5, BW=21.0KiB/s (21.5kB/s)(6236KiB/296440msec); 0 zone resets clat (msec): min=40, max=1172, avg=153.95, stdev=82.50 lat (msec): min=40, max=1172, avg=153.95, stdev=82.50 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 68], 10.00th=[ 79], 20.00th=[ 92], | 30.00th=[ 107], 40.00th=[ 120], 50.00th=[ 134], 60.00th=[ 150], | 70.00th=[ 171], 80.00th=[ 207], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 422], 99.50th=[ 502], 99.90th=[ 659], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 55, per=24.85%, avg=20.88, stdev=10.11, samples=572 iops : min= 1, max= 13, avg= 4.58, stdev= 2.58, samples=572 lat (msec) : 10=2.67%, 20=17.42%, 50=20.28%, 100=18.39%, 250=35.68% lat (msec) : 500=5.31%, 750=0.23%, 2000=0.03% cpu : usr=0.05%, sys=1.11%, ctx=5112, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=80.3KiB/s (82.2kB/s), 19.9KiB/s-20.4KiB/s (20.3kB/s-20.9kB/s), io=23.4MiB (24.6MB), run=295136-298983msec WRITE: bw=84.1KiB/s (86.1kB/s), 21.0KiB/s-21.2KiB/s (21.5kB/s-21.7kB/s), io=24.6MiB (25.7MB), run=295136-298983msec 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=143548: Fri Sep 11 09:16:57 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(5920KiB/31484msec) clat (usec): min=29, max=307374, avg=40248.17, stdev=36948.38 lat (usec): min=30, max=307375, avg=40249.80, stdev=36948.33 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 67], 20.00th=[ 87], | 30.00th=[ 22152], 40.00th=[ 30540], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 54264], 80.00th=[ 64226], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[141558], 99.50th=[231736], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 30, max= 352, per=25.00%, avg=189.97, stdev=68.50, samples=60 iops : min= 1, max= 22, avg=11.15, stdev= 4.39, samples=60 write: IOPS=12, BW=202KiB/s (207kB/s)(6368KiB/31484msec); 0 zone resets clat (usec): min=1517, max=335902, avg=40216.29, stdev=44266.83 lat (usec): min=1519, max=335904, avg=40255.97, stdev=44247.24 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1876], 10.00th=[ 2507], 20.00th=[ 6063], | 30.00th=[ 9503], 40.00th=[ 16909], 50.00th=[ 26870], 60.00th=[ 39060], | 70.00th=[ 50070], 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[116917], | 99.00th=[229639], 99.50th=[320865], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 31, max= 444, per=26.04%, avg=208.34, stdev=86.69, samples=59 iops : min= 1, max= 27, avg=12.32, stdev= 5.48, samples=59 lat (usec) : 50=1.82%, 100=9.51%, 250=0.91%, 500=0.26% lat (msec) : 2=3.78%, 4=4.43%, 10=8.33%, 20=7.42%, 50=32.03% lat (msec) : 100=25.13%, 250=5.86%, 500=0.52% cpu : usr=0.08%, sys=5.73%, ctx=1422, 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=143549: Fri Sep 11 09:16:57 2026 read: IOPS=11, BW=183KiB/s (188kB/s)(5744KiB/31360msec) clat (usec): min=35, max=368491, avg=45123.81, stdev=42080.63 lat (usec): min=35, max=368491, avg=45126.17, stdev=42080.36 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 21890], 40.00th=[ 34341], 50.00th=[ 42730], 60.00th=[ 51119], | 70.00th=[ 57934], 80.00th=[ 71828], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[193987], 99.50th=[221250], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 61, max= 380, per=24.03%, avg=182.64, stdev=72.47, samples=61 iops : min= 3, max= 23, avg=10.69, stdev= 4.59, samples=61 write: IOPS=13, BW=209KiB/s (214kB/s)(6544KiB/31360msec); 0 zone resets clat (usec): min=1499, max=168573, avg=36848.87, stdev=37493.91 lat (usec): min=1502, max=168577, avg=36863.34, stdev=37485.66 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2008], 10.00th=[ 2442], 20.00th=[ 5407], | 30.00th=[ 9110], 40.00th=[ 14091], 50.00th=[ 22938], 60.00th=[ 33817], | 70.00th=[ 50070], 80.00th=[ 68682], 90.00th=[ 89654], 95.00th=[114820], | 99.00th=[162530], 99.50th=[164627], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 31, max= 393, per=26.02%, avg=208.20, stdev=92.35, samples=61 iops : min= 1, max= 24, avg=12.31, stdev= 5.86, samples=61 lat (usec) : 50=1.17%, 100=9.11%, 250=0.65%, 500=0.52%, 750=0.26% lat (msec) : 2=2.86%, 4=6.25%, 10=8.46%, 20=9.51%, 50=26.17% lat (msec) : 100=27.99%, 250=6.90%, 500=0.13% cpu : usr=0.11%, sys=5.93%, ctx=1414, 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=143550: Fri Sep 11 09:16:57 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(6256KiB/30386msec) clat (usec): min=27, max=192801, avg=41799.52, stdev=32491.68 lat (usec): min=27, max=192804, avg=41811.43, stdev=32490.07 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 70], 20.00th=[ 99], | 30.00th=[ 25297], 40.00th=[ 34341], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 86508], 95.00th=[ 95945], | 99.00th=[124257], 99.50th=[166724], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 94, max= 435, per=27.25%, avg=207.12, stdev=74.53, samples=59 iops : min= 5, max= 27, avg=12.24, stdev= 4.71, samples=59 write: IOPS=12, BW=199KiB/s (203kB/s)(6032KiB/30386msec); 0 zone resets clat (usec): min=1372, max=211919, avg=36297.33, stdev=37422.32 lat (usec): min=1372, max=211923, avg=36306.88, stdev=37417.22 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2212], 10.00th=[ 3425], 20.00th=[ 5932], | 30.00th=[ 8979], 40.00th=[ 14091], 50.00th=[ 23987], 60.00th=[ 34866], | 70.00th=[ 44827], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[185598], 99.50th=[202376], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 90, max= 378, per=24.98%, avg=199.88, stdev=71.18, samples=58 iops : min= 5, max= 23, avg=11.79, stdev= 4.55, samples=58 lat (usec) : 50=0.91%, 100=9.38%, 250=1.30%, 500=0.26%, 1000=0.13% lat (msec) : 2=2.08%, 4=4.56%, 10=9.64%, 20=8.72%, 50=30.47% lat (msec) : 100=27.34%, 250=5.21% cpu : usr=0.14%, sys=5.72%, ctx=1411, 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=143551: Fri Sep 11 09:16:57 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(6032KiB/30298msec) clat (usec): min=40, max=443356, avg=43968.58, stdev=41817.95 lat (usec): min=40, max=443357, avg=43974.43, stdev=41816.52 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 48497], | 70.00th=[ 57934], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[108528], | 99.00th=[152044], 99.50th=[177210], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 31, max= 448, per=26.18%, avg=198.98, stdev=87.05, samples=59 iops : min= 1, max= 28, avg=11.71, stdev= 5.52, samples=59 write: IOPS=12, BW=206KiB/s (211kB/s)(6256KiB/30298msec); 0 zone resets clat (usec): min=1379, max=206639, avg=34252.91, stdev=36265.65 lat (usec): min=1381, max=206642, avg=34255.63, stdev=36265.70 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 2008], 10.00th=[ 2966], 20.00th=[ 5669], | 30.00th=[ 9241], 40.00th=[ 12911], 50.00th=[ 19006], 60.00th=[ 27657], | 70.00th=[ 42206], 80.00th=[ 64750], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[147850], 99.50th=[177210], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 61, max= 504, per=25.98%, avg=207.86, stdev=81.72, samples=59 iops : min= 3, max= 31, avg=12.29, stdev= 5.19, samples=59 lat (usec) : 50=0.91%, 100=9.90%, 250=0.65%, 500=0.52%, 750=0.13% lat (msec) : 2=2.60%, 4=5.99%, 10=8.72%, 20=10.68%, 50=28.26% lat (msec) : 100=25.00%, 250=6.51%, 500=0.13% cpu : usr=0.09%, sys=6.09%, ctx=1442, 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=761KiB/s (779kB/s), 183KiB/s-206KiB/s (188kB/s-211kB/s), io=23.4MiB (24.5MB), run=30298-31484msec WRITE: bw=800KiB/s (820kB/s), 199KiB/s-209KiB/s (203kB/s-214kB/s), io=24.6MiB (25.8MB), run=30298-31484msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143552: Fri Sep 11 09:17:47 2026 read: IOPS=4, BW=73.3KiB/s (75.1kB/s)(5920KiB/80733msec) clat (msec): min=9, max=344, avg=44.08, stdev=41.38 lat (msec): min=9, max=344, avg=44.08, stdev=41.38 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 91], 95.00th=[ 126], | 99.00th=[ 203], 99.50th=[ 279], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 343, per=29.20%, avg=86.42, stdev=52.87, samples=134 iops : min= 1, max= 21, avg= 4.62, stdev= 3.39, samples=134 write: IOPS=4, BW=78.9KiB/s (80.8kB/s)(6368KiB/80733msec); 0 zone resets clat (msec): min=48, max=406, avg=160.73, stdev=66.00 lat (msec): min=48, max=406, avg=160.75, stdev=66.01 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 77], 10.00th=[ 87], 20.00th=[ 107], | 30.00th=[ 121], 40.00th=[ 134], 50.00th=[ 146], 60.00th=[ 165], | 70.00th=[ 182], 80.00th=[ 211], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 376], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 190, per=25.69%, avg=79.91, stdev=32.89, samples=156 iops : min= 1, max= 11, avg= 4.19, stdev= 2.16, samples=156 lat (msec) : 10=0.52%, 20=10.42%, 50=24.87%, 100=16.28%, 250=41.80% lat (msec) : 500=6.12% cpu : usr=0.05%, sys=1.29%, ctx=1348, 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=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=143553: Fri Sep 11 09:17:47 2026 read: IOPS=4, BW=71.1KiB/s (72.8kB/s)(5744KiB/80778msec) clat (msec): min=7, max=389, avg=44.57, stdev=44.64 lat (msec): min=7, max=389, avg=44.58, stdev=44.64 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 95], 95.00th=[ 138], | 99.00th=[ 232], 99.50th=[ 249], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 30, max= 319, per=28.50%, avg=84.37, stdev=57.02, samples=134 iops : min= 1, max= 19, avg= 4.48, stdev= 3.61, samples=134 write: IOPS=5, BW=81.0KiB/s (82.0kB/s)(6544KiB/80778msec); 0 zone resets clat (msec): min=43, max=432, avg=157.92, stdev=64.84 lat (msec): min=43, max=432, avg=157.92, stdev=64.84 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 74], 10.00th=[ 85], 20.00th=[ 102], | 30.00th=[ 116], 40.00th=[ 133], 50.00th=[ 148], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 207], 90.00th=[ 247], 95.00th=[ 292], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 160, per=26.06%, avg=81.05, stdev=34.09, samples=158 iops : min= 1, max= 10, avg= 4.26, stdev= 2.21, samples=158 lat (msec) : 10=1.17%, 20=11.59%, 50=22.27%, 100=17.45%, 250=42.45% lat (msec) : 500=5.08% cpu : usr=0.05%, sys=1.10%, ctx=1280, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143554: Fri Sep 11 09:17:47 2026 read: IOPS=5, BW=80.2KiB/s (82.1kB/s)(6256KiB/78049msec) clat (msec): min=8, max=317, avg=42.45, stdev=40.92 lat (msec): min=8, max=317, avg=42.45, stdev=40.92 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 41], 80.00th=[ 51], 90.00th=[ 88], 95.00th=[ 131], | 99.00th=[ 222], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 319, per=31.03%, avg=91.85, stdev=64.76, samples=134 iops : min= 1, max= 19, avg= 4.93, stdev= 4.11, samples=134 write: IOPS=4, BW=77.3KiB/s (79.1kB/s)(6032KiB/78049msec); 0 zone resets clat (msec): min=50, max=495, avg=161.26, stdev=70.05 lat (msec): min=50, max=495, avg=161.27, stdev=70.05 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 73], 10.00th=[ 85], 20.00th=[ 103], | 30.00th=[ 116], 40.00th=[ 133], 50.00th=[ 148], 60.00th=[ 167], | 70.00th=[ 184], 80.00th=[ 220], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 481], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 190, per=25.37%, avg=78.90, stdev=32.72, samples=150 iops : min= 1, max= 11, avg= 4.11, stdev= 2.16, samples=150 lat (msec) : 10=0.39%, 20=12.89%, 50=27.47%, 100=15.63%, 250=37.76% lat (msec) : 500=5.86% cpu : usr=0.05%, sys=1.19%, ctx=1343, 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=143555: Fri Sep 11 09:17:47 2026 read: IOPS=4, BW=75.7KiB/s (77.6kB/s)(6032KiB/79642msec) clat (msec): min=7, max=268, avg=42.35, stdev=35.28 lat (msec): min=7, max=268, avg=42.35, stdev=35.28 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 117], | 99.00th=[ 169], 99.50th=[ 209], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 319, per=30.07%, avg=89.00, stdev=52.63, samples=132 iops : min= 1, max= 19, avg= 4.74, stdev= 3.31, samples=132 write: IOPS=4, BW=78.6KiB/s (80.4kB/s)(6256KiB/79642msec); 0 zone resets clat (msec): min=37, max=472, avg=161.54, stdev=69.55 lat (msec): min=37, max=472, avg=161.55, stdev=69.55 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 78], 10.00th=[ 90], 20.00th=[ 108], | 30.00th=[ 123], 40.00th=[ 131], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 186], 80.00th=[ 215], 90.00th=[ 253], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 451], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 21, max= 191, per=25.21%, avg=78.40, stdev=34.05, samples=156 iops : min= 1, max= 11, avg= 4.08, stdev= 2.16, samples=156 lat (msec) : 10=0.52%, 20=10.81%, 50=26.04%, 100=16.67%, 250=40.23% lat (msec) : 500=5.73% cpu : usr=0.04%, sys=1.13%, ctx=1274, 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), 71.1KiB/s-80.2KiB/s (72.8kB/s-82.1kB/s), io=23.4MiB (24.5MB), run=78049-80778msec WRITE: bw=312KiB/s (319kB/s), 77.3KiB/s-81.0KiB/s (79.1kB/s-82.0kB/s), io=24.6MiB (25.8MB), run=78049-80778msec 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=143574: Fri Sep 11 09:18:09 2026 read: IOPS=1, BW=1842KiB/s (1886kB/s)(7168KiB/3891msec) clat (msec): min=181, max=721, avg=366.21, stdev=191.38 lat (msec): min=181, max=721, avg=366.21, stdev=191.38 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 213], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 284], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 485], 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= 1892, max= 4063, per=100.00%, avg=2404.20, stdev=929.30, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1316KiB/s (1347kB/s)(5120KiB/3891msec); 0 zone resets clat (msec): min=114, max=385, avg=258.83, stdev=99.48 lat (msec): min=115, max=385, avg=258.95, stdev=99.45 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2039, max= 3968, per=79.72%, avg=2683.33, stdev=1112.56, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.05%, sys=12.60%, ctx=164, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143575: Fri Sep 11 09:18:09 2026 read: IOPS=0, BW=241KiB/s (247kB/s)(2048KiB/8499msec) clat (msec): min=9, max=520, avg=265.19, stdev=361.46 lat (msec): min=9, max=520, avg=265.19, stdev=361.46 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 10], 10.00th=[ 10], 20.00th=[ 10], | 30.00th=[ 10], 40.00th=[ 10], 50.00th=[ 10], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 1984, max= 2031, per=83.51%, avg=2007.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1205KiB/s (1234kB/s)(10.0MiB/8499msec); 0 zone resets clat (msec): min=121, max=4227, avg=771.56, stdev=1232.98 lat (msec): min=121, max=4227, avg=771.69, stdev=1232.97 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 190], | 30.00th=[ 211], 40.00th=[ 213], 50.00th=[ 342], 60.00th=[ 447], | 70.00th=[ 584], 80.00th=[ 617], 90.00th=[ 760], 95.00th=[ 4245], | 99.00th=[ 4245], 99.50th=[ 4245], 99.90th=[ 4245], 99.95th=[ 4245], | 99.99th=[ 4245] bw ( KiB/s): min= 1828, max= 5953, per=76.30%, avg=2568.14, stdev=1494.67, samples=7 iops : min= 1, max= 5, avg= 1.71, stdev= 1.50, samples=7 lat (msec) : 10=8.33%, 250=33.33%, 500=16.67%, 750=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=6.37%, ctx=109, 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=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=143576: Fri Sep 11 09:18:09 2026 read: IOPS=0, BW=721KiB/s (739kB/s)(6144KiB/8516msec) clat (usec): min=368, max=4504.4k, avg=829978.10, stdev=1804124.59 lat (usec): min=368, max=4504.4k, avg=829979.50, stdev=1804124.90 clat percentiles (usec): | 1.00th=[ 367], 5.00th=[ 367], 10.00th=[ 367], | 20.00th=[ 537], 30.00th=[ 537], 40.00th=[ 537], | 50.00th=[ 537], 60.00th=[ 183501], 70.00th=[ 291505], | 80.00th=[ 291505], 90.00th=[4529849], 95.00th=[4529849], | 99.00th=[4529849], 99.50th=[4529849], 99.90th=[4529849], | 99.95th=[4529849], 99.99th=[4529849] bw ( KiB/s): min= 2043, max= 7937, per=100.00%, avg=4990.00, stdev=4167.69, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=0, BW=721KiB/s (739kB/s)(6144KiB/8516msec); 0 zone resets clat (msec): min=102, max=1098, avg=561.53, stdev=352.58 lat (msec): min=102, max=1103, avg=562.32, stdev=353.90 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 542], | 70.00th=[ 793], 80.00th=[ 793], 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= 1984, max= 3657, per=72.21%, avg=2430.75, stdev=817.94, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=16.67%, 500=16.67%, 750=16.67%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=5.14%, ctx=601, 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=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=143577: Fri Sep 11 09:18:09 2026 read: IOPS=0, BW=667KiB/s (683kB/s)(5120KiB/7672msec) clat (usec): min=409, max=411258, avg=137108.72, stdev=193395.47 lat (usec): min=409, max=411258, avg=137109.70, stdev=193395.31 clat percentiles (usec): | 1.00th=[ 408], 5.00th=[ 408], 10.00th=[ 408], 20.00th=[ 408], | 30.00th=[ 469], 40.00th=[ 469], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[274727], 80.00th=[274727], 90.00th=[413139], 95.00th=[413139], | 99.00th=[413139], 99.50th=[413139], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 1828, max= 5953, per=100.00%, avg=3890.50, stdev=2916.82, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=934KiB/s (957kB/s)(7168KiB/7672msec); 0 zone resets clat (msec): min=97, max=4987, avg=982.59, stdev=1775.89 lat (msec): min=97, max=4987, avg=982.76, stdev=1775.88 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 138], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 334], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 676], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 1615, max= 5485, per=83.02%, avg=2794.50, stdev=1804.77, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 100=8.33%, 250=8.33%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.41%, ctx=152, 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=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=2405KiB/s (2463kB/s), 241KiB/s-1842KiB/s (247kB/s-1886kB/s), io=20.0MiB (20.0MB), run=3891-8516msec WRITE: bw=3367KiB/s (3448kB/s), 721KiB/s-1316KiB/s (739kB/s-1347kB/s), io=28.0MiB (29.4MB), run=3891-8516msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143580: Fri Sep 11 09:18:11 2026 read: IOPS=0, BW=882KiB/s (903kB/s)(7168KiB/8130msec) clat (msec): min=107, max=5119, avg=931.43, stdev=1858.87 lat (msec): min=107, max=5119, avg=931.43, stdev=1858.87 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 110], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 159], 60.00th=[ 194], | 70.00th=[ 194], 80.00th=[ 701], 90.00th=[ 5134], 95.00th=[ 5134], | 99.00th=[ 5134], 99.50th=[ 5134], 99.90th=[ 5134], 99.95th=[ 5134], | 99.99th=[ 5134] bw ( KiB/s): min= 2039, max= 4063, per=100.00%, avg=3377.67, stdev=1159.43, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=630KiB/s (645kB/s)(5120KiB/8130msec); 0 zone resets clat (msec): min=139, max=360, avg=219.72, stdev=94.94 lat (msec): min=139, max=360, avg=219.90, stdev=94.90 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 4063, max= 4079, per=100.00%, avg=4071.00, stdev=11.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (msec) : 250=66.67%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=1.43%, ctx=66, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143581: Fri Sep 11 09:18:11 2026 read: IOPS=0, BW=239KiB/s (245kB/s)(2048KiB/8572msec) clat (msec): min=106, max=291, avg=198.88, stdev=131.19 lat (msec): min=106, max=291, avg=198.88, stdev=131.19 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 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= 1537, max= 2039, per=74.84%, avg=1788.00, stdev=354.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1195KiB/s (1223kB/s)(10.0MiB/8572msec); 0 zone resets clat (msec): min=109, max=5340, avg=788.49, stdev=1602.40 lat (msec): min=109, max=5341, avg=788.61, stdev=1602.39 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 207], | 30.00th=[ 209], 40.00th=[ 259], 50.00th=[ 275], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 397], 90.00th=[ 430], 95.00th=[ 5336], | 99.00th=[ 5336], 99.50th=[ 5336], 99.90th=[ 5336], 99.95th=[ 5336], | 99.99th=[ 5336] bw ( KiB/s): min= 2027, max= 4079, per=84.97%, avg=2841.40, stdev=1108.00, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=33.33%, 500=58.33%, >=2000=8.33% cpu : usr=0.02%, sys=1.87%, ctx=60, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143582: Fri Sep 11 09:18:11 2026 read: IOPS=0, BW=731KiB/s (749kB/s)(6144KiB/8403msec) clat (msec): min=102, max=301, avg=171.64, stdev=73.78 lat (msec): min=102, max=301, avg=171.64, stdev=73.78 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 159], | 70.00th=[ 211], 80.00th=[ 211], 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= 2015, max= 4079, per=100.00%, avg=2538.00, stdev=1027.36, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=731KiB/s (749kB/s)(6144KiB/8403msec); 0 zone resets clat (msec): min=312, max=4532, avg=1152.32, stdev=1664.38 lat (msec): min=313, max=4532, avg=1154.42, stdev=1663.56 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 443], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] bw ( KiB/s): min= 2015, max= 2043, per=60.62%, avg=2027.00, stdev=10.95, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=1.38%, ctx=62, 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=143583: Fri Sep 11 09:18:11 2026 read: IOPS=0, BW=618KiB/s (633kB/s)(5120KiB/8280msec) clat (msec): min=97, max=498, avg=204.82, stdev=165.90 lat (msec): min=97, max=498, avg=204.82, stdev=165.90 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 2015, max= 4079, per=100.00%, avg=2708.33, stdev=1187.06, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=866KiB/s (886kB/s)(7168KiB/8280msec); 0 zone resets clat (msec): min=208, max=5039, avg=968.62, stdev=1796.29 lat (msec): min=208, max=5039, avg=969.34, stdev=1796.09 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 232], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 288], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 418], 90.00th=[ 5067], 95.00th=[ 5067], | 99.00th=[ 5067], 99.50th=[ 5067], 99.90th=[ 5067], 99.95th=[ 5067], | 99.99th=[ 5067] bw ( KiB/s): min= 2027, max= 6083, per=100.00%, avg=3545.00, stdev=1936.49, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, >=2000=8.33% cpu : usr=0.01%, sys=1.70%, ctx=69, 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=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=2389KiB/s (2447kB/s), 239KiB/s-882KiB/s (245kB/s-903kB/s), io=20.0MiB (20.0MB), run=8130-8572msec WRITE: bw=3345KiB/s (3425kB/s), 630KiB/s-1195KiB/s (645kB/s-1223kB/s), io=28.0MiB (29.4MB), run=8130-8572msec 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=143589: Fri Sep 11 09:18:26 2026 read: IOPS=2, BW=9998KiB/s (10.2MB/s)(12.0MiB/1229msec) clat (msec): min=109, max=795, avg=402.68, stdev=354.11 lat (msec): min=109, max=795, avg=402.68, stdev=354.11 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min=11330, max=11330, per=100.00%, avg=11330.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=6.68%, ctx=48, 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=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=143590: Fri Sep 11 09:18:26 2026 read: IOPS=0, BW=876KiB/s (897kB/s)(4096KiB/4674msec) clat (nsec): min=1273.6M, max=1273.6M, avg=1273628739.00, stdev= 0.00 lat (nsec): min=1273.6M, max=1273.6M, avg=1273631228.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1267], 5.00th=[ 1267], 10.00th=[ 1267], 20.00th=[ 1267], | 30.00th=[ 1267], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1753KiB/s (1795kB/s)(8192KiB/4674msec); 0 zone resets clat (msec): min=1407, max=1878, avg=1642.90, stdev=332.91 lat (msec): min=1412, max=1880, avg=1646.59, stdev=331.22 clat percentiles (msec): | 1.00th=[ 1401], 5.00th=[ 1401], 10.00th=[ 1401], 20.00th=[ 1401], | 30.00th=[ 1401], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1871], | 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= 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) : 2000=100.00% cpu : usr=0.00%, sys=1.67%, ctx=43, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=143591: Fri Sep 11 09:18:26 2026 write: IOPS=0, BW=2678KiB/s (2742kB/s)(12.0MiB/4589msec); 0 zone resets clat (msec): min=604, max=2961, avg=1470.29, stdev=1296.95 lat (msec): min=606, max=2961, avg=1473.85, stdev=1294.61 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 2970], 80.00th=[ 2970], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 8110, max= 8143, per=100.00%, avg=8126.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.77%, ctx=50, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=143592: Fri Sep 11 09:18:26 2026 write: IOPS=1, BW=5737KiB/s (5874kB/s)(12.0MiB/2142msec); 0 zone resets clat (msec): min=504, max=898, avg=696.58, stdev=197.33 lat (msec): min=505, max=899, avg=698.62, stdev=197.07 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 6481, max= 8015, per=100.00%, avg=7248.00, stdev=1084.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.54%, ctx=65, 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 Run status group 0 (all jobs): READ: bw=3505KiB/s (3589kB/s), 876KiB/s-9998KiB/s (897kB/s-10.2MB/s), io=16.0MiB (16.8MB), run=1229-4674msec WRITE: bw=7011KiB/s (7179kB/s), 1753KiB/s-5737KiB/s (1795kB/s-5874kB/s), io=32.0MiB (33.6MB), run=2142-4674msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143594: Fri Sep 11 09:18:27 2026 read: IOPS=0, BW=3363KiB/s (3444kB/s)(12.0MiB/3654msec) clat (msec): min=1125, max=1245, avg=1195.38, stdev=62.43 lat (msec): min=1125, max=1245, avg=1195.38, stdev=62.43 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 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= 8110, max= 8192, per=100.00%, 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=10.95%, ctx=190, 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=143595: Fri Sep 11 09:18:27 2026 read: IOPS=0, BW=1217KiB/s (1246kB/s)(4096KiB/3366msec) clat (nsec): min=949867k, max=949867k, avg=949866830.00, stdev= 0.00 lat (nsec): min=949870k, max=949870k, avg=949869999.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2434KiB/s (2492kB/s)(8192KiB/3366msec); 0 zone resets clat (msec): min=1071, max=1197, avg=1134.18, stdev=89.19 lat (msec): min=1071, max=1204, avg=1138.01, stdev=93.69 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=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.12%, sys=5.05%, ctx=89, 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=143596: Fri Sep 11 09:18:27 2026 write: IOPS=0, BW=2385KiB/s (2442kB/s)(12.0MiB/5152msec); 0 zone resets clat (msec): min=369, max=3908, avg=1683.69, stdev=1937.29 lat (msec): min=370, max=3909, avg=1684.15, stdev=1937.28 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 3910], 80.00th=[ 3910], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.21%, ctx=42, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=143597: Fri Sep 11 09:18:27 2026 write: IOPS=0, BW=2756KiB/s (2822kB/s)(12.0MiB/4459msec); 0 zone resets clat (msec): min=977, max=1911, avg=1422.89, stdev=468.53 lat (msec): min=977, max=1913, avg=1423.72, stdev=469.25 clat percentiles (msec): | 1.00th=[ 978], 5.00th=[ 978], 10.00th=[ 978], 20.00th=[ 978], | 30.00th=[ 978], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, 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=4.04%, ctx=58, 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=4484KiB/s (4591kB/s), 1217KiB/s-3363KiB/s (1246kB/s-3444kB/s), io=16.0MiB (16.8MB), run=3366-3654msec WRITE: bw=6360KiB/s (6513kB/s), 2385KiB/s-2756KiB/s (2442kB/s-2822kB/s), io=32.0MiB (33.6MB), run=3366-5152msec