== sanity test 398b: DIO and buffer IO race ============== 01:15:45 (1788671745) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.33586 s, 6.9 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=179771: Sun Sep 6 01:18:37 2026 read: IOPS=10, BW=40.9KiB/s (41.8kB/s)(5992KiB/146651msec) clat (usec): min=45, max=297825, avg=55796.19, stdev=38081.91 lat (usec): min=46, max=297827, avg=55804.06, stdev=38081.34 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 12518], 10.00th=[ 19792], 20.00th=[ 27395], | 30.00th=[ 33817], 40.00th=[ 40109], 50.00th=[ 47449], 60.00th=[ 55837], | 70.00th=[ 66323], 80.00th=[ 80217], 90.00th=[101188], 95.00th=[123208], | 99.00th=[202376], 99.50th=[227541], 99.90th=[291505], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 103, per=25.29%, avg=40.46, stdev=16.53, samples=287 iops : min= 1, max= 25, avg= 9.44, stdev= 4.17, samples=287 write: IOPS=10, BW=42.9KiB/s (43.0kB/s)(6296KiB/146651msec); 0 zone resets clat (usec): min=991, max=973052, avg=39719.78, stdev=46073.97 lat (usec): min=993, max=973054, avg=39727.29, stdev=46073.15 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1319], 10.00th=[ 1647], 20.00th=[ 4686], | 30.00th=[ 9372], 40.00th=[ 18744], 50.00th=[ 29492], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 65799], 90.00th=[ 93848], 95.00th=[120062], | 99.00th=[183501], 99.50th=[193987], 99.90th=[256902], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 111, per=25.54%, avg=42.65, stdev=20.45, samples=286 iops : min= 1, max= 27, avg= 9.98, stdev= 5.14, samples=286 lat (usec) : 50=0.16%, 100=1.37%, 250=0.03%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=5.83%, 4=3.35%, 10=7.03%, 20=7.98%, 50=36.17% lat (msec) : 100=28.35%, 250=9.34%, 500=0.10%, 1000=0.03% cpu : usr=0.10%, sys=4.90%, ctx=6523, 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=179772: Sun Sep 6 01:18:37 2026 read: IOPS=9, BW=39.9KiB/s (40.8kB/s)(5940KiB/148998msec) clat (usec): min=56, max=1041.9k, avg=56810.34, stdev=44067.32 lat (usec): min=57, max=1041.9k, avg=56820.21, stdev=44067.21 clat percentiles (usec): | 1.00th=[ 69], 5.00th=[ 16450], 10.00th=[ 21365], | 20.00th=[ 29230], 30.00th=[ 35390], 40.00th=[ 40633], | 50.00th=[ 47973], 60.00th=[ 56886], 70.00th=[ 65274], | 80.00th=[ 78119], 90.00th=[ 101188], 95.00th=[ 122160], | 99.00th=[ 193987], 99.50th=[ 231736], 99.90th=[ 274727], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 95, per=24.74%, avg=39.58, stdev=16.71, samples=291 iops : min= 1, max= 23, avg= 9.21, stdev= 4.21, samples=291 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6348KiB/148998msec); 0 zone resets clat (usec): min=896, max=286083, avg=40382.53, stdev=40473.16 lat (usec): min=898, max=286083, avg=40389.58, stdev=40479.18 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1352], 10.00th=[ 1696], 20.00th=[ 4359], | 30.00th=[ 10159], 40.00th=[ 19792], 50.00th=[ 29754], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[119014], | 99.00th=[175113], 99.50th=[196084], 99.90th=[263193], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 116, per=25.33%, avg=42.31, stdev=20.55, samples=291 iops : min= 1, max= 29, avg= 9.90, stdev= 5.18, samples=291 lat (usec) : 100=1.04%, 250=0.10%, 500=0.03%, 1000=0.03% lat (msec) : 2=5.79%, 4=3.74%, 10=6.05%, 20=7.62%, 50=36.17% lat (msec) : 100=29.85%, 250=9.38%, 500=0.16%, 2000=0.03% cpu : usr=0.09%, sys=4.67%, ctx=6585, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179773: Sun Sep 6 01:18:37 2026 read: IOPS=10, BW=40.2KiB/s (41.1kB/s)(6028KiB/150073msec) clat (usec): min=37, max=277296, avg=53546.11, stdev=34299.56 lat (usec): min=37, max=277297, avg=53549.53, stdev=34298.40 clat percentiles (usec): | 1.00th=[ 64], 5.00th=[ 14746], 10.00th=[ 20317], 20.00th=[ 27395], | 30.00th=[ 34341], 40.00th=[ 40633], 50.00th=[ 46400], 60.00th=[ 53216], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 94897], 95.00th=[115868], | 99.00th=[179307], 99.50th=[193987], 99.90th=[270533], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 95, per=24.97%, avg=39.95, stdev=17.21, samples=292 iops : min= 1, max= 23, avg= 9.30, stdev= 4.34, samples=292 write: IOPS=10, BW=41.7KiB/s (42.7kB/s)(6260KiB/150073msec); 0 zone resets clat (usec): min=886, max=1057.3k, avg=43935.95, stdev=50402.63 lat (usec): min=888, max=1057.3k, avg=43953.34, stdev=50403.09 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1336], 10.00th=[ 1778], | 20.00th=[ 4883], 30.00th=[ 10552], 40.00th=[ 21365], | 50.00th=[ 30802], 60.00th=[ 42206], 70.00th=[ 56361], | 80.00th=[ 76022], 90.00th=[ 103285], 95.00th=[ 131597], | 99.00th=[ 183501], 99.50th=[ 212861], 99.90th=[ 325059], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 103, per=24.98%, avg=41.72, stdev=19.36, samples=290 iops : min= 1, max= 25, avg= 9.75, stdev= 4.88, samples=290 lat (usec) : 50=0.07%, 100=1.37%, 250=0.20%, 1000=0.23% lat (msec) : 2=5.47%, 4=3.35%, 10=6.02%, 20=7.49%, 50=36.30% lat (msec) : 100=29.59%, 250=9.77%, 500=0.13%, 2000=0.03% cpu : usr=0.10%, sys=4.69%, ctx=6553, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179774: Sun Sep 6 01:18:37 2026 read: IOPS=10, BW=40.0KiB/s (41.9kB/s)(6052KiB/147749msec) clat (usec): min=43, max=395186, avg=54582.40, stdev=36338.01 lat (usec): min=43, max=395186, avg=54586.57, stdev=36337.40 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 13829], 10.00th=[ 20055], 20.00th=[ 27395], | 30.00th=[ 33817], 40.00th=[ 40633], 50.00th=[ 46924], 60.00th=[ 55313], | 70.00th=[ 64750], 80.00th=[ 77071], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[185598], 99.50th=[214959], 99.90th=[299893], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 7, max= 87, per=25.55%, avg=40.88, stdev=16.03, samples=287 iops : min= 1, max= 21, avg= 9.54, stdev= 4.04, samples=287 write: IOPS=10, BW=42.2KiB/s (43.2kB/s)(6236KiB/147749msec); 0 zone resets clat (usec): min=791, max=1050.9k, avg=41422.00, stdev=47764.21 lat (usec): min=792, max=1050.9k, avg=41434.45, stdev=47762.43 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 1598], | 20.00th=[ 4752], 30.00th=[ 9896], 40.00th=[ 20055], | 50.00th=[ 29754], 60.00th=[ 41681], 70.00th=[ 53740], | 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[ 122160], | 99.00th=[ 173016], 99.50th=[ 187696], 99.90th=[ 240124], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 134, per=25.20%, avg=42.09, stdev=19.49, samples=287 iops : min= 1, max= 33, avg= 9.85, stdev= 4.92, samples=287 lat (usec) : 50=0.10%, 100=1.46%, 250=0.13%, 500=0.03%, 1000=0.16% lat (msec) : 2=6.28%, 4=2.99%, 10=6.18%, 20=7.81%, 50=35.29% lat (msec) : 100=30.76%, 250=8.63%, 500=0.13%, 2000=0.03% cpu : usr=0.10%, sys=4.73%, ctx=6562, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=160KiB/s (164kB/s), 39.9KiB/s-40.0KiB/s (40.8kB/s-41.9kB/s), io=23.4MiB (24.6MB), run=146651-150073msec WRITE: bw=168KiB/s (172kB/s), 41.7KiB/s-42.9KiB/s (42.7kB/s-43.0kB/s), io=24.6MiB (25.7MB), run=146651-150073msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179766: Sun Sep 6 01:19:16 2026 read: IOPS=7, BW=31.6KiB/s (32.3kB/s)(5992KiB/189711msec) clat (msec): min=5, max=1087, avg=52.25, stdev=56.61 lat (msec): min=5, max=1087, avg=52.25, stdev=56.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 57], 80.00th=[ 79], 90.00th=[ 124], 95.00th=[ 155], | 99.00th=[ 247], 99.50th=[ 262], 99.90th=[ 409], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 160, per=25.77%, avg=32.47, stdev=26.50, samples=358 iops : min= 1, max= 40, avg= 7.45, stdev= 6.68, samples=358 write: IOPS=8, BW=33.2KiB/s (33.0kB/s)(6296KiB/189711msec); 0 zone resets clat (msec): min=8, max=384, avg=70.45, stdev=54.11 lat (msec): min=8, max=384, avg=70.45, stdev=54.12 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 54], 60.00th=[ 66], | 70.00th=[ 84], 80.00th=[ 107], 90.00th=[ 140], 95.00th=[ 180], | 99.00th=[ 266], 99.50th=[ 300], 99.90th=[ 355], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 150, per=25.33%, avg=33.44, stdev=24.61, samples=365 iops : min= 1, max= 37, avg= 7.69, stdev= 6.20, samples=365 lat (msec) : 10=3.35%, 20=14.55%, 50=38.61%, 100=25.13%, 250=17.35% lat (msec) : 500=0.98%, 2000=0.03% cpu : usr=0.06%, sys=1.62%, ctx=4840, 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=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=179768: Sun Sep 6 01:19:16 2026 read: IOPS=7, BW=31.5KiB/s (32.2kB/s)(5940KiB/188732msec) clat (msec): min=5, max=1037, avg=49.93, stdev=52.56 lat (msec): min=5, max=1037, avg=49.94, stdev=52.56 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 113], 95.00th=[ 153], | 99.00th=[ 220], 99.50th=[ 247], 99.90th=[ 405], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 151, per=26.01%, avg=32.77, stdev=25.29, samples=351 iops : min= 1, max= 37, avg= 7.52, stdev= 6.36, samples=351 write: IOPS=8, BW=33.6KiB/s (34.4kB/s)(6348KiB/188732msec); 0 zone resets clat (msec): min=10, max=456, avg=71.86, stdev=54.21 lat (msec): min=10, max=456, avg=71.87, stdev=54.22 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 69], | 70.00th=[ 86], 80.00th=[ 107], 90.00th=[ 146], 95.00th=[ 182], | 99.00th=[ 257], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 136, per=25.62%, avg=33.82, stdev=22.93, samples=364 iops : min= 1, max= 34, avg= 7.78, stdev= 5.78, samples=364 lat (msec) : 10=2.47%, 20=13.74%, 50=40.69%, 100=25.36%, 250=16.96% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.06%, sys=1.71%, ctx=4938, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179769: Sun Sep 6 01:19:16 2026 read: IOPS=8, BW=32.0KiB/s (32.8kB/s)(6028KiB/188119msec) clat (msec): min=5, max=292, avg=50.67, stdev=47.12 lat (msec): min=5, max=292, avg=50.68, stdev=47.12 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 55], 80.00th=[ 75], 90.00th=[ 112], 95.00th=[ 155], | 99.00th=[ 239], 99.50th=[ 249], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 136, per=25.98%, avg=32.73, stdev=24.10, samples=356 iops : min= 1, max= 34, avg= 7.51, stdev= 6.07, samples=356 write: IOPS=8, BW=33.3KiB/s (34.1kB/s)(6260KiB/188119msec); 0 zone resets clat (msec): min=11, max=1077, avg=71.06, stdev=59.20 lat (msec): min=11, max=1077, avg=71.06, stdev=59.20 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 64], | 70.00th=[ 84], 80.00th=[ 105], 90.00th=[ 140], 95.00th=[ 176], | 99.00th=[ 266], 99.50th=[ 321], 99.90th=[ 447], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 144, per=25.36%, avg=33.47, stdev=22.82, samples=361 iops : min= 1, max= 36, avg= 7.70, stdev= 5.75, samples=361 lat (msec) : 10=2.02%, 20=13.70%, 50=41.44%, 100=25.52%, 250=16.41% lat (msec) : 500=0.88%, 2000=0.03% cpu : usr=0.06%, sys=1.77%, ctx=4895, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179770: Sun Sep 6 01:19:16 2026 read: IOPS=8, BW=32.2KiB/s (33.0kB/s)(6052KiB/187789msec) clat (msec): min=4, max=312, avg=48.19, stdev=43.98 lat (msec): min=5, max=312, avg=48.19, stdev=43.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 67], 90.00th=[ 107], 95.00th=[ 142], | 99.00th=[ 230], 99.50th=[ 245], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 160, per=26.46%, avg=33.34, stdev=23.98, samples=352 iops : min= 1, max= 40, avg= 7.67, stdev= 6.05, samples=352 write: IOPS=8, BW=33.2KiB/s (34.0kB/s)(6236KiB/187789msec); 0 zone resets clat (msec): min=9, max=1057, avg=73.35, stdev=58.88 lat (msec): min=9, max=1057, avg=73.35, stdev=58.88 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 47], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 87], 80.00th=[ 111], 90.00th=[ 146], 95.00th=[ 180], | 99.00th=[ 241], 99.50th=[ 317], 99.90th=[ 477], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 120, per=25.29%, avg=33.38, stdev=22.26, samples=362 iops : min= 1, max= 30, avg= 7.67, stdev= 5.61, samples=362 lat (msec) : 10=2.05%, 20=13.25%, 50=40.66%, 100=26.50%, 250=16.93% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.06%, sys=1.71%, ctx=4901, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=127KiB/s (130kB/s), 31.5KiB/s-32.2KiB/s (32.2kB/s-33.0kB/s), io=23.4MiB (24.6MB), run=187789-189711msec WRITE: bw=133KiB/s (136kB/s), 33.2KiB/s-33.6KiB/s (33.0kB/s-34.4kB/s), io=24.6MiB (25.7MB), run=187789-189711msec 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=179817: Sun Sep 6 01:20:10 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(5920KiB/40707msec) clat (usec): min=48, max=256676, avg=57531.24, stdev=42397.27 lat (usec): min=48, max=256678, avg=57532.89, stdev=42397.22 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 83], 10.00th=[ 13042], 20.00th=[ 23987], | 30.00th=[ 32900], 40.00th=[ 40109], 50.00th=[ 46924], 60.00th=[ 57410], | 70.00th=[ 70779], 80.00th=[ 91751], 90.00th=[108528], 95.00th=[135267], | 99.00th=[196084], 99.50th=[252707], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 30, max= 284, per=23.81%, avg=140.03, stdev=63.11, samples=79 iops : min= 1, max= 17, avg= 7.97, stdev= 4.03, samples=79 write: IOPS=9, BW=156KiB/s (160kB/s)(6368KiB/40707msec); 0 zone resets clat (usec): min=1188, max=266138, avg=48407.22, stdev=51561.07 lat (usec): min=1190, max=266140, avg=48413.13, stdev=51561.76 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2507], 10.00th=[ 3785], 20.00th=[ 6783], | 30.00th=[ 13173], 40.00th=[ 20841], 50.00th=[ 29754], 60.00th=[ 43779], | 70.00th=[ 55313], 80.00th=[ 82314], 90.00th=[123208], 95.00th=[166724], | 99.00th=[219153], 99.50th=[258999], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 383, per=24.68%, avg=152.78, stdev=79.85, samples=79 iops : min= 1, max= 23, avg= 8.80, stdev= 5.06, samples=79 lat (usec) : 50=0.13%, 100=2.86%, 250=0.78%, 500=0.26%, 1000=0.13% lat (msec) : 2=1.30%, 4=4.69%, 10=7.55%, 20=9.64%, 50=32.29% lat (msec) : 100=25.39%, 250=14.32%, 500=0.65% cpu : usr=0.08%, sys=5.11%, ctx=1743, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179818: Sun Sep 6 01:20:10 2026 read: IOPS=8, BW=143KiB/s (146kB/s)(5744KiB/40276msec) clat (usec): min=57, max=392419, avg=63764.32, stdev=48247.75 lat (usec): min=59, max=392420, avg=63783.48, stdev=48254.70 clat percentiles (usec): | 1.00th=[ 66], 5.00th=[ 83], 10.00th=[ 19268], 20.00th=[ 29754], | 30.00th=[ 37487], 40.00th=[ 45351], 50.00th=[ 53740], 60.00th=[ 63177], | 70.00th=[ 76022], 80.00th=[ 92799], 90.00th=[120062], 95.00th=[141558], | 99.00th=[238027], 99.50th=[367002], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 31, max= 284, per=24.06%, avg=141.49, stdev=55.63, samples=78 iops : min= 1, max= 17, avg= 8.05, stdev= 3.55, samples=78 write: IOPS=10, BW=162KiB/s (166kB/s)(6544KiB/40276msec); 0 zone resets clat (usec): min=1546, max=260994, avg=41832.13, stdev=44224.57 lat (usec): min=1549, max=260997, avg=41854.62, stdev=44220.61 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2212], 10.00th=[ 3326], 20.00th=[ 7046], | 30.00th=[ 12518], 40.00th=[ 17695], 50.00th=[ 26084], 60.00th=[ 38011], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[104334], 95.00th=[130548], | 99.00th=[189793], 99.50th=[233833], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 30, max= 377, per=26.29%, avg=162.71, stdev=89.51, samples=77 iops : min= 1, max= 23, avg= 9.40, stdev= 5.64, samples=77 lat (usec) : 100=2.47%, 250=0.52% lat (msec) : 2=2.21%, 4=4.43%, 10=7.29%, 20=10.68%, 50=29.95% lat (msec) : 100=29.04%, 250=12.76%, 500=0.65% cpu : usr=0.08%, sys=5.31%, ctx=1736, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179820: Sun Sep 6 01:20:10 2026 read: IOPS=9, BW=156KiB/s (160kB/s)(6256KiB/40061msec) clat (usec): min=43, max=224356, avg=55847.47, stdev=39331.27 lat (usec): min=43, max=224358, avg=55850.46, stdev=39330.30 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 72], 10.00th=[ 14222], 20.00th=[ 26870], | 30.00th=[ 36439], 40.00th=[ 42206], 50.00th=[ 49021], 60.00th=[ 56361], | 70.00th=[ 65274], 80.00th=[ 79168], 90.00th=[107480], 95.00th=[137364], | 99.00th=[196084], 99.50th=[217056], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 349, per=26.90%, avg=158.16, stdev=69.99, samples=77 iops : min= 1, max= 21, avg= 9.12, stdev= 4.35, samples=77 write: IOPS=9, BW=151KiB/s (154kB/s)(6032KiB/40061msec); 0 zone resets clat (usec): min=1410, max=262871, avg=47423.92, stdev=49960.11 lat (usec): min=1411, max=262873, avg=47434.11, stdev=49960.24 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2409], 10.00th=[ 4228], 20.00th=[ 7963], | 30.00th=[ 13173], 40.00th=[ 20579], 50.00th=[ 31327], 60.00th=[ 43254], | 70.00th=[ 56361], 80.00th=[ 79168], 90.00th=[117965], 95.00th=[152044], | 99.00th=[238027], 99.50th=[261096], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 31, max= 444, per=24.30%, avg=150.39, stdev=73.71, samples=77 iops : min= 1, max= 27, avg= 8.64, stdev= 4.66, samples=77 lat (usec) : 50=0.26%, 100=3.65%, 250=0.39%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.30%, 4=3.39%, 10=7.03%, 20=9.77%, 50=31.12% lat (msec) : 100=30.47%, 250=11.72%, 500=0.39% cpu : usr=0.06%, sys=4.68%, ctx=1655, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179821: Sun Sep 6 01:20:10 2026 read: IOPS=9, BW=150KiB/s (154kB/s)(6032KiB/40117msec) clat (usec): min=50, max=292080, avg=58602.37, stdev=44556.85 lat (usec): min=52, max=292081, avg=58603.92, stdev=44556.83 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 88], 20.00th=[ 25297], | 30.00th=[ 35390], 40.00th=[ 43779], 50.00th=[ 51643], 60.00th=[ 61080], | 70.00th=[ 69731], 80.00th=[ 88605], 90.00th=[113771], 95.00th=[139461], | 99.00th=[202376], 99.50th=[254804], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 319, per=25.31%, avg=148.81, stdev=67.18, samples=78 iops : min= 1, max= 19, avg= 8.54, stdev= 4.22, samples=78 write: IOPS=9, BW=156KiB/s (160kB/s)(6256KiB/40117msec); 0 zone resets clat (usec): min=1442, max=347260, avg=45398.74, stdev=48281.94 lat (usec): min=1444, max=347261, avg=45403.67, stdev=48280.88 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2507], 10.00th=[ 4424], 20.00th=[ 8160], | 30.00th=[ 12911], 40.00th=[ 19792], 50.00th=[ 28967], 60.00th=[ 44303], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[106431], 95.00th=[128451], | 99.00th=[258999], 99.50th=[320865], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 30, max= 376, per=25.41%, avg=157.26, stdev=71.32, samples=77 iops : min= 1, max= 23, avg= 9.06, stdev= 4.49, samples=77 lat (usec) : 100=5.47%, 250=0.78%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.30%, 4=3.52%, 10=7.68%, 20=9.64%, 50=26.69% lat (msec) : 100=31.51%, 250=12.37%, 500=0.78% cpu : usr=0.06%, sys=5.05%, ctx=1640, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=588KiB/s (603kB/s), 143KiB/s-156KiB/s (146kB/s-160kB/s), io=23.4MiB (24.5MB), run=40061-40707msec WRITE: bw=619KiB/s (634kB/s), 151KiB/s-162KiB/s (154kB/s-166kB/s), io=24.6MiB (25.8MB), run=40061-40707msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179823: Sun Sep 6 01:20:21 2026 read: IOPS=7, BW=118KiB/s (121kB/s)(5920KiB/50093msec) clat (msec): min=6, max=303, avg=52.72, stdev=50.87 lat (msec): min=6, max=303, avg=52.73, stdev=50.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 120], 95.00th=[ 157], | 99.00th=[ 266], 99.50th=[ 296], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 414, per=26.39%, avg=125.07, stdev=89.48, samples=92 iops : min= 1, max= 25, avg= 7.00, stdev= 5.62, samples=92 write: IOPS=7, BW=127KiB/s (130kB/s)(6368KiB/50093msec); 0 zone resets clat (msec): min=12, max=439, avg=76.65, stdev=61.13 lat (msec): min=12, max=439, avg=76.66, stdev=61.13 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 84], 80.00th=[ 117], 90.00th=[ 171], 95.00th=[ 207], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 29, max= 447, per=25.70%, avg=128.00, stdev=89.87, samples=97 iops : min= 1, max= 27, avg= 7.20, stdev= 5.67, samples=97 lat (msec) : 10=1.30%, 20=10.16%, 50=45.57%, 100=23.83%, 250=17.71% lat (msec) : 500=1.43% cpu : usr=0.05%, sys=1.78%, ctx=1254, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179824: Sun Sep 6 01:20:21 2026 read: IOPS=7, BW=114KiB/s (116kB/s)(5744KiB/50513msec) clat (msec): min=8, max=300, avg=50.91, stdev=49.00 lat (msec): min=8, max=300, avg=50.92, stdev=49.01 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 37], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 126], 95.00th=[ 165], | 99.00th=[ 232], 99.50th=[ 264], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 413, per=26.16%, avg=123.98, stdev=91.04, samples=90 iops : min= 1, max= 25, avg= 6.94, stdev= 5.71, samples=90 write: IOPS=8, BW=130KiB/s (133kB/s)(6544KiB/50513msec); 0 zone resets clat (msec): min=11, max=446, avg=78.65, stdev=65.87 lat (msec): min=11, max=446, avg=78.65, stdev=65.87 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 85], 80.00th=[ 117], 90.00th=[ 169], 95.00th=[ 205], | 99.00th=[ 334], 99.50th=[ 368], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 30, max= 444, per=26.88%, avg=133.86, stdev=91.94, samples=95 iops : min= 1, max= 27, avg= 7.56, stdev= 5.82, samples=95 lat (msec) : 10=1.69%, 20=11.46%, 50=42.84%, 100=25.13%, 250=17.45% lat (msec) : 500=1.43% cpu : usr=0.06%, sys=1.63%, ctx=1232, 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=179825: Sun Sep 6 01:20:21 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/49959msec) clat (msec): min=8, max=294, avg=53.72, stdev=51.89 lat (msec): min=8, max=294, avg=53.72, stdev=51.90 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 84], 90.00th=[ 129], 95.00th=[ 165], | 99.00th=[ 266], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 24, max= 474, per=27.04%, avg=128.17, stdev=103.44, samples=96 iops : min= 1, max= 29, avg= 7.20, stdev= 6.53, samples=96 write: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49959msec); 0 zone resets clat (msec): min=14, max=373, avg=76.49, stdev=59.57 lat (msec): min=14, max=373, avg=76.50, stdev=59.57 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 116], 90.00th=[ 169], 95.00th=[ 205], | 99.00th=[ 275], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 415, per=25.43%, avg=126.65, stdev=85.81, samples=93 iops : min= 1, max= 25, avg= 7.10, stdev= 5.41, samples=93 lat (msec) : 10=1.17%, 20=11.85%, 50=44.01%, 100=22.53%, 250=19.27% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.62%, ctx=1182, 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=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=179826: Sun Sep 6 01:20:21 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6032KiB/50347msec) clat (msec): min=9, max=374, avg=58.77, stdev=62.28 lat (msec): min=9, max=374, avg=58.77, stdev=62.28 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 42], | 70.00th=[ 63], 80.00th=[ 88], 90.00th=[ 153], 95.00th=[ 201], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 29, max= 447, per=25.83%, avg=122.45, stdev=93.67, samples=94 iops : min= 1, max= 27, avg= 6.84, stdev= 5.92, samples=94 write: IOPS=7, BW=124KiB/s (127kB/s)(6256KiB/50347msec); 0 zone resets clat (msec): min=12, max=385, avg=71.74, stdev=58.86 lat (msec): min=12, max=385, avg=71.80, stdev=58.94 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 83], 80.00th=[ 107], 90.00th=[ 146], 95.00th=[ 186], | 99.00th=[ 321], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 30, max= 447, per=25.64%, avg=127.67, stdev=97.72, samples=94 iops : min= 1, max= 27, avg= 7.17, stdev= 6.14, samples=94 lat (msec) : 10=0.39%, 20=15.63%, 50=41.80%, 100=22.79%, 250=17.32% lat (msec) : 500=2.08% cpu : usr=0.05%, sys=1.77%, ctx=1227, 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=474KiB/s (486kB/s), 114KiB/s-125KiB/s (116kB/s-128kB/s), io=23.4MiB (24.5MB), run=49959-50513msec WRITE: bw=499KiB/s (511kB/s), 121KiB/s-130KiB/s (124kB/s-133kB/s), io=24.6MiB (25.8MB), run=49959-50513msec 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=179840: Sun Sep 6 01:20:39 2026 read: IOPS=1, BW=1776KiB/s (1818kB/s)(7168KiB/4037msec) clat (usec): min=511, max=336065, avg=237613.23, stdev=117055.64 lat (usec): min=513, max=336067, avg=237615.20, stdev=117055.75 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[175113], | 30.00th=[252707], 40.00th=[252707], 50.00th=[278922], 60.00th=[308282], | 70.00th=[308282], 80.00th=[312476], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1523, max= 4071, per=65.30%, avg=2297.80, stdev=1009.66, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1268KiB/s (1299kB/s)(5120KiB/4037msec); 0 zone resets clat (msec): min=188, max=1124, avg=461.25, stdev=376.24 lat (msec): min=188, max=1124, avg=461.33, stdev=376.24 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 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= 1957, max= 3900, per=53.07%, avg=2615.00, stdev=1112.95, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=66.67%, 2000=8.33% cpu : usr=0.00%, sys=13.38%, ctx=323, 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=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=179841: Sun Sep 6 01:20:39 2026 read: IOPS=0, BW=352KiB/s (360kB/s)(2048KiB/5819msec) clat (msec): min=24, max=289, avg=156.95, stdev=187.79 lat (msec): min=24, max=289, avg=156.95, stdev=187.80 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 25], 10.00th=[ 25], 20.00th=[ 25], | 30.00th=[ 25], 40.00th=[ 25], 50.00th=[ 25], 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= 1422, max= 2043, per=49.23%, avg=1732.50, stdev=439.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1760KiB/s (1802kB/s)(10.0MiB/5819msec); 0 zone resets clat (msec): min=132, max=1118, avg=535.70, stdev=314.68 lat (msec): min=132, max=1118, avg=535.79, stdev=314.68 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 197], | 30.00th=[ 203], 40.00th=[ 409], 50.00th=[ 502], 60.00th=[ 558], | 70.00th=[ 659], 80.00th=[ 776], 90.00th=[ 802], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1988, max= 6131, per=61.57%, avg=3033.33, stdev=1706.87, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 50=8.33%, 250=25.00%, 500=16.67%, 750=25.00%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=10.71%, ctx=115, 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=179842: Sun Sep 6 01:20:39 2026 read: IOPS=1, BW=1538KiB/s (1574kB/s)(6144KiB/3996msec) clat (usec): min=451, max=346362, avg=83147.42, stdev=141667.30 lat (usec): min=451, max=346363, avg=83148.97, stdev=141667.06 clat percentiles (usec): | 1.00th=[ 453], 5.00th=[ 453], 10.00th=[ 453], 20.00th=[ 461], | 30.00th=[ 461], 40.00th=[ 889], 50.00th=[ 889], 60.00th=[ 2900], | 70.00th=[147850], 80.00th=[147850], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 1950, max= 4055, per=93.97%, avg=3306.67, stdev=1176.99, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1538KiB/s (1574kB/s)(6144KiB/3996msec); 0 zone resets clat (msec): min=250, max=1187, avg=569.13, stdev=387.97 lat (msec): min=250, max=1187, avg=569.91, stdev=387.48 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 363], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1544, max= 2035, per=38.62%, avg=1902.60, stdev=204.21, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 4=8.33%, 250=8.33%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.89%, ctx=133, 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=179843: Sun Sep 6 01:20:39 2026 read: IOPS=1, BW=1265KiB/s (1295kB/s)(5120KiB/4049msec) clat (usec): min=448, max=304564, avg=115660.42, stdev=157060.11 lat (usec): min=449, max=304566, avg=115661.62, stdev=157060.31 clat percentiles (usec): | 1.00th=[ 449], 5.00th=[ 449], 10.00th=[ 449], 20.00th=[ 449], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 2999], 60.00th=[ 2999], | 70.00th=[270533], 80.00th=[270533], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1770KiB/s (1813kB/s)(7168KiB/4049msec); 0 zone resets clat (msec): min=287, max=859, avg=489.24, stdev=224.95 lat (msec): min=287, max=859, avg=489.34, stdev=224.94 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 296], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 426], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 709], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1372, max= 3900, per=45.67%, avg=2250.40, stdev=961.00, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=16.67% lat (msec) : 4=8.33%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=10.97%, ctx=120, 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=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=3520KiB/s (3604kB/s), 352KiB/s-1776KiB/s (360kB/s-1818kB/s), io=20.0MiB (20.0MB), run=3996-5819msec WRITE: bw=4927KiB/s (5046kB/s), 1268KiB/s-1770KiB/s (1299kB/s-1813kB/s), io=28.0MiB (29.4MB), run=3996-5819msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179844: Sun Sep 6 01:20:40 2026 read: IOPS=1, BW=1114KiB/s (1141kB/s)(7168KiB/6432msec) clat (msec): min=158, max=1173, avg=405.95, stdev=382.20 lat (msec): min=158, max=1173, avg=406.00, stdev=382.16 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 161], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 257], 60.00th=[ 259], | 70.00th=[ 259], 80.00th=[ 667], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1477, max= 3992, per=89.72%, avg=2856.75, stdev=1287.71, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=796KiB/s (815kB/s)(5120KiB/6432msec); 0 zone resets clat (msec): min=236, max=1027, avg=659.27, stdev=315.50 lat (msec): min=236, max=1027, avg=660.55, stdev=315.40 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1950, max= 2043, per=44.81%, avg=1997.00, stdev=39.55, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=33.33%, 500=16.67%, 750=25.00%, 1000=8.33%, 2000=16.67% cpu : usr=0.00%, sys=3.76%, ctx=93, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179845: Sun Sep 6 01:20:40 2026 read: IOPS=0, BW=332KiB/s (340kB/s)(2048KiB/6160msec) clat (msec): min=71, max=144, avg=107.74, stdev=51.89 lat (msec): min=71, max=144, avg=107.74, stdev=51.89 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 71], | 30.00th=[ 71], 40.00th=[ 71], 50.00th=[ 71], 60.00th=[ 144], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 1656, max= 1996, per=57.35%, avg=1826.00, stdev=240.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1662KiB/s (1702kB/s)(10.0MiB/6160msec); 0 zone resets clat (msec): min=74, max=1233, avg=542.59, stdev=410.89 lat (msec): min=74, max=1233, avg=543.62, stdev=411.41 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 176], | 30.00th=[ 264], 40.00th=[ 330], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 810], 90.00th=[ 1217], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1882, max= 4087, per=59.41%, avg=2647.83, stdev=1082.08, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=16.67%, 250=16.67%, 500=41.67%, 1000=8.33%, 2000=16.67% cpu : usr=0.00%, sys=5.44%, ctx=127, 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=179846: Sun Sep 6 01:20:40 2026 read: IOPS=0, BW=998KiB/s (1022kB/s)(6144KiB/6157msec) clat (msec): min=97, max=501, avg=261.67, stdev=160.47 lat (msec): min=97, max=501, avg=261.67, stdev=160.47 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 226], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1882, max= 3930, per=77.38%, avg=2463.75, stdev=979.87, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=998KiB/s (1022kB/s)(6144KiB/6157msec); 0 zone resets clat (msec): min=95, max=1475, avg=718.45, stdev=563.97 lat (msec): min=95, max=1475, avg=718.55, stdev=563.97 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 542], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 1882, max= 4087, per=53.55%, avg=2386.80, stdev=951.94, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 2000=16.67% cpu : usr=0.02%, sys=3.25%, ctx=143, 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=179847: Sun Sep 6 01:20:40 2026 read: IOPS=0, BW=818KiB/s (838kB/s)(5120KiB/6260msec) clat (msec): min=66, max=754, avg=333.12, stdev=293.43 lat (msec): min=66, max=754, avg=333.12, stdev=293.43 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 262], 60.00th=[ 262], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1950, max= 3930, per=82.90%, avg=2639.67, stdev=1118.35, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1145KiB/s (1173kB/s)(7168KiB/6260msec); 0 zone resets clat (msec): min=198, max=1292, avg=572.56, stdev=354.80 lat (msec): min=198, max=1292, avg=573.34, stdev=354.62 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 292], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 531], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 659], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 1882, max= 2043, per=44.64%, avg=1989.60, stdev=63.20, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=8.33%, 500=25.00%, 750=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.59%, ctx=100, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3184KiB/s (3260kB/s), 332KiB/s-1114KiB/s (340kB/s-1141kB/s), io=20.0MiB (20.0MB), run=6157-6432msec WRITE: bw=4458KiB/s (4565kB/s), 796KiB/s-1662KiB/s (815kB/s-1702kB/s), io=28.0MiB (29.4MB), run=6157-6432msec 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=179854: Sun Sep 6 01:20:57 2026 read: IOPS=0, BW=2776KiB/s (2843kB/s)(12.0MiB/4426msec) clat (msec): min=707, max=2852, avg=1449.99, stdev=1215.19 lat (msec): min=707, max=2852, avg=1449.99, stdev=1215.19 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 2869], 80.00th=[ 2869], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 8000, max= 8078, per=100.00%, avg=8039.00, stdev=55.15, 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=11.53%, ctx=851, 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=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=179855: Sun Sep 6 01:20:57 2026 read: IOPS=0, BW=794KiB/s (813kB/s)(4096KiB/5157msec) clat (nsec): min=3146.1M, max=3146.1M, avg=3146066163.00, stdev= 0.00 lat (nsec): min=3146.1M, max=3146.1M, avg=3146070111.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3138], 5.00th=[ 3138], 10.00th=[ 3138], 20.00th=[ 3138], | 30.00th=[ 3138], 40.00th=[ 3138], 50.00th=[ 3138], 60.00th=[ 3138], | 70.00th=[ 3138], 80.00th=[ 3138], 90.00th=[ 3138], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] 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=1589KiB/s (1627kB/s)(8192KiB/5157msec); 0 zone resets clat (msec): min=718, max=1155, avg=937.14, stdev=308.72 lat (msec): min=719, max=1155, avg=937.43, stdev=308.73 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.27%, ctx=266, 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=179856: Sun Sep 6 01:20:57 2026 write: IOPS=0, BW=2477KiB/s (2536kB/s)(12.0MiB/4961msec); 0 zone resets clat (msec): min=646, max=2708, avg=1638.63, stdev=1033.06 lat (msec): min=647, max=2710, avg=1640.68, stdev=1033.71 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 8015, max= 8078, per=100.00%, avg=8046.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.42%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179857: Sun Sep 6 01:20:57 2026 write: IOPS=0, BW=2762KiB/s (2828kB/s)(12.0MiB/4449msec); 0 zone resets clat (msec): min=747, max=2710, avg=1482.10, stdev=1070.24 lat (msec): min=747, max=2710, avg=1482.57, stdev=1070.58 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 986], 50.00th=[ 986], 60.00th=[ 986], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 8000, max= 8078, per=100.00%, avg=8039.00, stdev=55.15, 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=2.83%, ctx=47, 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=3177KiB/s (3253kB/s), 794KiB/s-2776KiB/s (813kB/s-2843kB/s), io=16.0MiB (16.8MB), run=4426-5157msec WRITE: bw=6354KiB/s (6507kB/s), 1589KiB/s-2762KiB/s (1627kB/s-2828kB/s), io=32.0MiB (33.6MB), run=4449-5157msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179859: Sun Sep 6 01:20:58 2026 read: IOPS=0, BW=2490KiB/s (2550kB/s)(12.0MiB/4934msec) clat (msec): min=159, max=3716, avg=1643.30, stdev=1850.53 lat (msec): min=159, max=3716, avg=1643.30, stdev=1850.53 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1053], | 70.00th=[ 3708], 80.00th=[ 3708], 90.00th=[ 3708], 95.00th=[ 3708], | 99.00th=[ 3708], 99.50th=[ 3708], 99.90th=[ 3708], 99.95th=[ 3708], | 99.99th=[ 3708] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.06%, sys=2.23%, ctx=31, 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=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=179860: Sun Sep 6 01:20:58 2026 read: IOPS=0, BW=809KiB/s (828kB/s)(4096KiB/5063msec) clat (nsec): min=2885.5M, max=2885.5M, avg=2885517176.00, stdev= 0.00 lat (nsec): min=2885.5M, max=2885.5M, avg=2885519292.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2869], 5.00th=[ 2869], 10.00th=[ 2869], 20.00th=[ 2869], | 30.00th=[ 2869], 40.00th=[ 2869], 50.00th=[ 2869], 60.00th=[ 2869], | 70.00th=[ 2869], 80.00th=[ 2869], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] 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=1618KiB/s (1657kB/s)(8192KiB/5063msec); 0 zone resets clat (msec): min=915, max=1258, avg=1087.03, stdev=242.38 lat (msec): min=916, max=1258, avg=1087.61, stdev=242.03 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 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= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.21%, ctx=58, 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=179861: Sun Sep 6 01:20:58 2026 write: IOPS=0, BW=2252KiB/s (2306kB/s)(12.0MiB/5456msec); 0 zone resets clat (msec): min=223, max=4298, avg=1816.00, stdev=2178.16 lat (msec): min=227, max=4299, avg=1817.61, stdev=2177.59 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.11%, sys=2.68%, ctx=39, 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=179862: Sun Sep 6 01:20:58 2026 write: IOPS=0, BW=2694KiB/s (2759kB/s)(12.0MiB/4561msec); 0 zone resets clat (msec): min=168, max=2772, avg=1518.64, stdev=1305.02 lat (msec): min=169, max=2773, avg=1519.59, stdev=1304.39 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 1620], 50.00th=[ 1620], 60.00th=[ 1620], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] 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 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.35%, ctx=34, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3236KiB/s (3314kB/s), 809KiB/s-2490KiB/s (828kB/s-2550kB/s), io=16.0MiB (16.8MB), run=4934-5063msec WRITE: bw=6006KiB/s (6150kB/s), 1618KiB/s-2694KiB/s (1657kB/s-2759kB/s), io=32.0MiB (33.6MB), run=4561-5456msec