== sanity test 398b: DIO and buffer IO race ============== 07:39:47 (1789385987) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.61925 s, 6.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180103: Mon Sep 14 07:42:30 2026 read: IOPS=11, BW=44.3KiB/s (45.4kB/s)(5992KiB/135284msec) clat (usec): min=32, max=1001.8k, avg=50953.66, stdev=42209.38 lat (usec): min=32, max=1001.8k, avg=50957.53, stdev=42209.13 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 11600], 10.00th=[ 18220], | 20.00th=[ 25297], 30.00th=[ 31327], 40.00th=[ 36963], | 50.00th=[ 43254], 60.00th=[ 50594], 70.00th=[ 59507], | 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[ 109577], | 99.00th=[ 183501], 99.50th=[ 214959], 99.90th=[ 362808], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 102, per=25.11%, avg=43.95, stdev=17.12, samples=266 iops : min= 1, max= 25, avg=10.35, stdev= 4.34, samples=266 write: IOPS=11, BW=46.5KiB/s (47.7kB/s)(6296KiB/135284msec); 0 zone resets clat (usec): min=957, max=267407, avg=37173.75, stdev=38998.41 lat (usec): min=958, max=267410, avg=37176.04, stdev=38998.19 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1696], 20.00th=[ 4080], | 30.00th=[ 7832], 40.00th=[ 16188], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 46924], 80.00th=[ 65274], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[166724], 99.50th=[193987], 99.90th=[258999], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 7, max= 142, per=25.31%, avg=46.32, stdev=19.70, samples=265 iops : min= 1, max= 35, avg=10.94, stdev= 4.94, samples=265 lat (usec) : 50=0.33%, 100=1.56%, 250=0.20%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.92%, 4=4.10%, 10=7.39%, 20=8.69%, 50=37.27% lat (msec) : 100=27.44%, 250=6.64%, 500=0.16%, 2000=0.03% cpu : usr=0.08%, sys=5.00%, ctx=6485, 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=180105: Mon Sep 14 07:42:30 2026 read: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5940KiB/133741msec) clat (usec): min=29, max=229282, avg=49273.05, stdev=30278.01 lat (usec): min=29, max=229283, avg=49286.10, stdev=30277.72 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 10028], 10.00th=[ 20055], 20.00th=[ 26084], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 43779], 60.00th=[ 50594], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[103285], | 99.00th=[152044], 99.50th=[175113], 99.90th=[214959], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 80, per=25.18%, avg=44.06, stdev=16.62, samples=263 iops : min= 1, max= 20, avg=10.37, stdev= 4.18, samples=263 write: IOPS=11, BW=47.5KiB/s (48.6kB/s)(6348KiB/133741msec); 0 zone resets clat (usec): min=944, max=800675, avg=37814.93, stdev=42954.45 lat (usec): min=946, max=800677, avg=37831.49, stdev=42948.19 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1237], 10.00th=[ 1696], 20.00th=[ 4146], | 30.00th=[ 7570], 40.00th=[ 15795], 50.00th=[ 27919], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 66323], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[160433], 99.50th=[204473], 99.90th=[350225], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 126, per=25.72%, avg=47.07, stdev=20.94, samples=263 iops : min= 1, max= 31, avg=11.13, stdev= 5.30, samples=263 lat (usec) : 50=0.16%, 100=1.82%, 250=0.16%, 500=0.03%, 1000=0.07% lat (msec) : 2=5.79%, 4=4.07%, 10=8.11%, 20=7.00%, 50=37.66% lat (msec) : 100=28.71%, 250=6.32%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.81%, ctx=6427, 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=180106: Mon Sep 14 07:42:30 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(6028KiB/137075msec) clat (usec): min=37, max=244498, avg=48474.88, stdev=30236.61 lat (usec): min=37, max=244499, avg=48476.66, stdev=30237.45 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 12387], 10.00th=[ 19006], 20.00th=[ 25035], | 30.00th=[ 30016], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 49546], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 85459], 95.00th=[103285], | 99.00th=[147850], 99.50th=[168821], 99.90th=[229639], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=43.58, stdev=18.13, samples=269 iops : min= 1, max= 25, avg=10.25, stdev= 4.56, samples=269 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6260KiB/137075msec); 0 zone resets clat (usec): min=991, max=988872, avg=40630.61, stdev=46649.71 lat (usec): min=992, max=988874, avg=40633.47, stdev=46649.95 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1237], 10.00th=[ 1582], 20.00th=[ 4555], | 30.00th=[ 9241], 40.00th=[ 19268], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 52691], 80.00th=[ 69731], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[166724], 99.50th=[179307], 99.90th=[270533], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 7, max= 103, per=24.76%, avg=45.30, stdev=18.08, samples=268 iops : min= 1, max= 25, avg=10.69, stdev= 4.55, samples=268 lat (usec) : 50=0.16%, 100=1.46%, 250=0.26%, 1000=0.07% lat (msec) : 2=6.05%, 4=3.29%, 10=6.74%, 20=8.07%, 50=38.35% lat (msec) : 100=27.80%, 250=7.68%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.93%, ctx=6617, 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=180108: Mon Sep 14 07:42:30 2026 read: IOPS=11, BW=44.7KiB/s (45.8kB/s)(6052KiB/135450msec) clat (usec): min=36, max=850800, avg=49344.02, stdev=37466.09 lat (usec): min=37, max=850802, avg=49350.08, stdev=37465.39 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11469], 10.00th=[ 18220], 20.00th=[ 25035], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[103285], | 99.00th=[149947], 99.50th=[177210], 99.90th=[312476], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 95, per=25.40%, avg=44.45, stdev=16.07, samples=265 iops : min= 1, max= 23, avg=10.47, stdev= 4.05, samples=265 write: IOPS=11, BW=46.0KiB/s (47.1kB/s)(6236KiB/135450msec); 0 zone resets clat (usec): min=959, max=215117, avg=38696.40, stdev=38067.34 lat (usec): min=960, max=215119, avg=38701.95, stdev=38064.92 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1270], 10.00th=[ 1631], 20.00th=[ 4228], | 30.00th=[ 8979], 40.00th=[ 18482], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 51119], 80.00th=[ 65799], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[164627], 99.50th=[183501], 99.90th=[204473], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 7, max= 110, per=24.93%, avg=45.63, stdev=20.16, samples=266 iops : min= 1, max= 27, avg=10.76, stdev= 5.08, samples=266 lat (usec) : 50=0.20%, 100=1.56%, 250=0.16%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.09%, 4=3.55%, 10=6.45%, 20=8.92%, 50=37.30% lat (msec) : 100=28.87%, 250=6.54%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.90%, ctx=6622, 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=175KiB/s (179kB/s), 43.0KiB/s-44.7KiB/s (45.0kB/s-45.8kB/s), io=23.4MiB (24.6MB), run=133741-137075msec WRITE: bw=183KiB/s (188kB/s), 45.7KiB/s-47.5KiB/s (46.8kB/s-48.6kB/s), io=24.6MiB (25.7MB), run=133741-137075msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180101: Mon Sep 14 07:43:21 2026 read: IOPS=8, BW=32.2KiB/s (33.0kB/s)(5992KiB/185906msec) clat (msec): min=6, max=1034, avg=48.36, stdev=48.41 lat (msec): min=6, max=1034, avg=48.37, stdev=48.41 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 51], 80.00th=[ 66], 90.00th=[ 102], 95.00th=[ 132], | 99.00th=[ 222], 99.50th=[ 249], 99.90th=[ 317], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 111, per=25.98%, avg=32.99, stdev=20.83, samples=352 iops : min= 1, max= 27, avg= 7.59, stdev= 5.24, samples=352 write: IOPS=8, BW=33.9KiB/s (34.7kB/s)(6296KiB/185906msec); 0 zone resets clat (msec): min=13, max=467, avg=71.81, stdev=46.37 lat (msec): min=13, max=467, avg=71.82, stdev=46.37 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 103], 90.00th=[ 131], 95.00th=[ 157], | 99.00th=[ 232], 99.50th=[ 296], 99.90th=[ 376], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 7, max= 96, per=25.35%, avg=33.72, stdev=18.70, samples=362 iops : min= 1, max= 24, avg= 7.77, stdev= 4.70, samples=362 lat (msec) : 10=1.04%, 20=10.16%, 50=43.26%, 100=29.85%, 250=15.04% lat (msec) : 500=0.62%, 2000=0.03% cpu : usr=0.06%, sys=1.76%, ctx=4894, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180102: Mon Sep 14 07:43:21 2026 read: IOPS=7, BW=31.8KiB/s (32.6kB/s)(5940KiB/186668msec) clat (msec): min=6, max=848, avg=49.67, stdev=48.43 lat (msec): min=6, max=848, avg=49.67, stdev=48.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 68], 90.00th=[ 109], 95.00th=[ 144], | 99.00th=[ 224], 99.50th=[ 259], 99.90th=[ 380], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 111, per=25.65%, avg=32.57, stdev=20.34, samples=354 iops : min= 1, max= 27, avg= 7.48, stdev= 5.13, samples=354 write: IOPS=8, BW=34.0KiB/s (34.8kB/s)(6348KiB/186668msec); 0 zone resets clat (msec): min=11, max=373, avg=70.88, stdev=43.35 lat (msec): min=11, max=373, avg=70.88, stdev=43.36 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 58], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 105], 90.00th=[ 133], 95.00th=[ 157], | 99.00th=[ 207], 99.50th=[ 234], 99.90th=[ 296], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 103, per=25.27%, avg=33.61, stdev=18.82, samples=367 iops : min= 1, max= 25, avg= 7.74, stdev= 4.72, samples=367 lat (msec) : 10=0.98%, 20=9.73%, 50=44.24%, 100=28.55%, 250=16.05% lat (msec) : 500=0.42%, 1000=0.03% cpu : usr=0.07%, sys=1.68%, ctx=4773, 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=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=180104: Mon Sep 14 07:43:21 2026 read: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6028KiB/187697msec) clat (msec): min=5, max=374, avg=49.08, stdev=40.92 lat (msec): min=5, max=374, avg=49.09, stdev=40.92 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 106], 95.00th=[ 133], | 99.00th=[ 186], 99.50th=[ 234], 99.90th=[ 342], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 111, per=25.82%, avg=32.79, stdev=19.98, samples=357 iops : min= 1, max= 27, avg= 7.54, stdev= 5.03, samples=357 write: IOPS=8, BW=33.4KiB/s (34.2kB/s)(6260KiB/187697msec); 0 zone resets clat (msec): min=12, max=881, avg=72.39, stdev=53.56 lat (msec): min=12, max=881, avg=72.39, stdev=53.56 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 66], | 70.00th=[ 82], 80.00th=[ 105], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 253], 99.50th=[ 300], 99.90th=[ 535], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 104, per=24.97%, avg=33.21, stdev=19.12, samples=366 iops : min= 1, max= 26, avg= 7.64, stdev= 4.82, samples=366 lat (msec) : 10=0.75%, 20=9.64%, 50=44.79%, 100=28.03%, 250=16.11% lat (msec) : 500=0.62%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.68%, ctx=4795, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180107: Mon Sep 14 07:43:21 2026 read: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6052KiB/188470msec) clat (msec): min=6, max=313, avg=48.66, stdev=41.46 lat (msec): min=6, max=313, avg=48.67, stdev=41.46 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 44], | 70.00th=[ 53], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 133], | 99.00th=[ 209], 99.50th=[ 232], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 103, per=26.00%, avg=33.02, stdev=20.97, samples=355 iops : min= 1, max= 25, avg= 7.60, stdev= 5.28, samples=355 write: IOPS=8, BW=33.1KiB/s (33.9kB/s)(6236KiB/188470msec); 0 zone resets clat (msec): min=11, max=878, avg=73.38, stdev=52.97 lat (msec): min=11, max=878, avg=73.39, stdev=52.96 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 106], 90.00th=[ 140], 95.00th=[ 171], | 99.00th=[ 226], 99.50th=[ 296], 99.90th=[ 535], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 103, per=24.96%, avg=33.20, stdev=18.79, samples=363 iops : min= 1, max= 25, avg= 7.64, stdev= 4.72, samples=363 lat (msec) : 10=1.01%, 20=10.03%, 50=44.04%, 100=28.13%, 250=16.21% lat (msec) : 500=0.52%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=1.70%, ctx=4750, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=127KiB/s (130kB/s), 31.8KiB/s-32.2KiB/s (32.6kB/s-33.0kB/s), io=23.4MiB (24.6MB), run=185906-188470msec WRITE: bw=133KiB/s (137kB/s), 33.1KiB/s-34.0KiB/s (33.9kB/s-34.8kB/s), io=24.6MiB (25.7MB), run=185906-188470msec 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=180164: Mon Sep 14 07:44:12 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5920KiB/35976msec) clat (usec): min=42, max=242088, avg=54011.24, stdev=35484.39 lat (usec): min=42, max=242090, avg=54012.76, stdev=35484.50 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 73], 10.00th=[ 16909], 20.00th=[ 28705], | 30.00th=[ 35390], 40.00th=[ 41681], 50.00th=[ 46924], 60.00th=[ 55837], | 70.00th=[ 64750], 80.00th=[ 78119], 90.00th=[ 96994], 95.00th=[122160], | 99.00th=[175113], 99.50th=[189793], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 352, per=26.23%, avg=164.45, stdev=69.51, samples=71 iops : min= 1, max= 22, avg= 9.54, stdev= 4.44, samples=71 write: IOPS=11, BW=177KiB/s (181kB/s)(6368KiB/35976msec); 0 zone resets clat (usec): min=1620, max=211366, avg=40072.85, stdev=40173.30 lat (usec): min=1622, max=211368, avg=40077.87, stdev=40181.84 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1860], 10.00th=[ 2966], 20.00th=[ 6718], | 30.00th=[ 10683], 40.00th=[ 18744], 50.00th=[ 27919], 60.00th=[ 36439], | 70.00th=[ 51119], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[123208], | 99.00th=[179307], 99.50th=[187696], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 413, per=26.74%, avg=176.51, stdev=69.65, samples=71 iops : min= 1, max= 25, avg=10.30, stdev= 4.41, samples=71 lat (usec) : 50=0.39%, 100=2.86%, 250=0.52%, 500=0.13%, 1000=0.13% lat (msec) : 2=3.39%, 4=2.60%, 10=9.11%, 20=7.29%, 50=35.16% lat (msec) : 100=29.17%, 250=9.24% cpu : usr=0.07%, sys=4.90%, ctx=1564, 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=180165: Mon Sep 14 07:44:12 2026 read: IOPS=9, BW=154KiB/s (158kB/s)(5744KiB/37324msec) clat (usec): min=43, max=186588, avg=52905.66, stdev=31356.08 lat (usec): min=43, max=186589, avg=52907.16, stdev=31356.18 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 72], 10.00th=[ 21365], 20.00th=[ 29230], | 30.00th=[ 35390], 40.00th=[ 41681], 50.00th=[ 48497], 60.00th=[ 54789], | 70.00th=[ 62653], 80.00th=[ 74974], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[149947], 99.50th=[181404], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 314, per=24.63%, avg=154.42, stdev=63.97, samples=73 iops : min= 1, max= 19, avg= 8.90, stdev= 4.10, samples=73 write: IOPS=10, BW=175KiB/s (180kB/s)(6544KiB/37324msec); 0 zone resets clat (usec): min=1448, max=258539, avg=44676.36, stdev=44356.06 lat (usec): min=1449, max=258540, avg=44698.94, stdev=44347.59 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1827], 10.00th=[ 3097], 20.00th=[ 7373], | 30.00th=[ 12125], 40.00th=[ 21103], 50.00th=[ 30540], 60.00th=[ 42206], | 70.00th=[ 57410], 80.00th=[ 79168], 90.00th=[104334], 95.00th=[132645], | 99.00th=[196084], 99.50th=[227541], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 320, per=26.65%, avg=175.89, stdev=69.84, samples=73 iops : min= 1, max= 20, avg=10.27, stdev= 4.45, samples=73 lat (usec) : 50=0.13%, 100=2.73%, 250=0.13%, 500=0.13% lat (msec) : 2=3.52%, 4=2.34%, 10=8.59%, 20=6.38%, 50=36.07% lat (msec) : 100=30.21%, 250=9.64%, 500=0.13% cpu : usr=0.04%, sys=4.86%, ctx=1626, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180166: Mon Sep 14 07:44:12 2026 read: IOPS=10, BW=165KiB/s (168kB/s)(6256KiB/38019msec) clat (usec): min=44, max=234076, avg=52898.18, stdev=34658.25 lat (usec): min=44, max=234077, avg=52899.48, stdev=34658.23 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 15401], 20.00th=[ 29754], | 30.00th=[ 34866], 40.00th=[ 41157], 50.00th=[ 49546], 60.00th=[ 56361], | 70.00th=[ 64226], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[191890], 99.50th=[204473], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 320, per=26.19%, avg=164.20, stdev=60.07, samples=75 iops : min= 1, max= 20, avg= 9.52, stdev= 3.84, samples=75 write: IOPS=9, BW=159KiB/s (162kB/s)(6032KiB/38019msec); 0 zone resets clat (usec): min=1463, max=212440, avg=45894.73, stdev=45367.49 lat (usec): min=1467, max=212443, avg=45897.16, stdev=45367.46 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1762], 10.00th=[ 3163], 20.00th=[ 5800], | 30.00th=[ 10421], 40.00th=[ 21103], 50.00th=[ 32900], 60.00th=[ 43779], | 70.00th=[ 58983], 80.00th=[ 80217], 90.00th=[115868], 95.00th=[143655], | 99.00th=[187696], 99.50th=[202376], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 61, max= 377, per=23.78%, avg=156.97, stdev=76.70, samples=75 iops : min= 3, max= 23, avg= 9.07, stdev= 4.93, samples=75 lat (usec) : 50=0.13%, 100=4.04%, 250=0.13%, 1000=0.13% lat (msec) : 2=3.52%, 4=3.12%, 10=8.07%, 20=6.64%, 50=32.03% lat (msec) : 100=32.55%, 250=9.64% cpu : usr=0.06%, sys=4.77%, ctx=1693, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180167: Mon Sep 14 07:44:12 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38161msec) clat (usec): min=43, max=307244, avg=57568.01, stdev=41687.19 lat (usec): min=43, max=307246, avg=57614.59, stdev=41718.14 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 14877], 20.00th=[ 30540], | 30.00th=[ 36963], 40.00th=[ 43779], 50.00th=[ 51119], 60.00th=[ 60031], | 70.00th=[ 69731], 80.00th=[ 81265], 90.00th=[100140], 95.00th=[125305], | 99.00th=[233833], 99.50th=[265290], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 31, max= 256, per=24.85%, avg=155.83, stdev=60.03, samples=75 iops : min= 1, max= 16, avg= 8.99, stdev= 3.87, samples=75 write: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38161msec); 0 zone resets clat (usec): min=1546, max=348019, avg=41863.38, stdev=43254.57 lat (usec): min=1547, max=348021, avg=41876.22, stdev=43271.84 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1975], 10.00th=[ 3130], 20.00th=[ 6849], | 30.00th=[ 11994], 40.00th=[ 20841], 50.00th=[ 30016], 60.00th=[ 36963], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[122160], | 99.00th=[183501], 99.50th=[263193], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 31, max= 286, per=24.62%, avg=162.47, stdev=65.12, samples=75 iops : min= 1, max= 17, avg= 9.41, stdev= 4.17, samples=75 lat (usec) : 50=0.39%, 100=3.78%, 250=0.26%, 500=0.26% lat (msec) : 2=2.73%, 4=3.52%, 10=6.90%, 20=8.07%, 50=32.81% lat (msec) : 100=31.12%, 250=9.64%, 500=0.52% cpu : usr=0.05%, sys=4.55%, ctx=1603, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=628KiB/s (643kB/s), 154KiB/s-165KiB/s (158kB/s-169kB/s), io=23.4MiB (24.5MB), run=35976-38161msec WRITE: bw=660KiB/s (676kB/s), 159KiB/s-177KiB/s (162kB/s-181kB/s), io=24.6MiB (25.8MB), run=35976-38161msec fio: pid=180160, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=180159: Mon Sep 14 07:44:26 2026 read: IOPS=7, BW=114KiB/s (117kB/s)(5920KiB/51848msec) clat (msec): min=8, max=232, avg=54.15, stdev=41.10 lat (msec): min=8, max=232, avg=54.16, stdev=41.10 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 59], 80.00th=[ 83], 90.00th=[ 117], 95.00th=[ 148], | 99.00th=[ 176], 99.50th=[ 228], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 30, max= 318, per=26.78%, avg=115.70, stdev=70.18, samples=100 iops : min= 1, max= 19, avg= 6.45, stdev= 4.47, samples=100 write: IOPS=7, BW=123KiB/s (126kB/s)(6368KiB/51848msec); 0 zone resets clat (msec): min=18, max=303, avg=79.58, stdev=47.76 lat (msec): min=18, max=303, avg=79.59, stdev=47.76 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 28], 10.00th=[ 34], 20.00th=[ 41], | 30.00th=[ 50], 40.00th=[ 56], 50.00th=[ 66], 60.00th=[ 75], | 70.00th=[ 91], 80.00th=[ 120], 90.00th=[ 153], 95.00th=[ 176], | 99.00th=[ 232], 99.50th=[ 262], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 317, per=27.20%, avg=122.15, stdev=69.12, samples=102 iops : min= 1, max= 19, avg= 6.85, stdev= 4.41, samples=102 lat (msec) : 10=0.39%, 20=6.25%, 50=40.23%, 100=32.55%, 250=20.31% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.41%, ctx=1140, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=180160: Mon Sep 14 07:44:26 2026 read: IOPS=6, BW=96.0KiB/s (99.3kB/s)(4272KiB/44043msec) clat (msec): min=9, max=263, avg=62.05, stdev=48.64 lat (msec): min=9, max=263, avg=62.05, stdev=48.64 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 20], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 66], 80.00th=[ 103], 90.00th=[ 138], 95.00th=[ 159], | 99.00th=[ 230], 99.50th=[ 253], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 316, per=23.16%, avg=100.05, stdev=65.62, samples=84 iops : min= 1, max= 19, avg= 5.44, stdev= 4.15, samples=84 write: IOPS=6, BW=107KiB/s (109kB/s)(4704KiB/44043msec); 0 zone resets clat (msec): min=21, max=270, avg=93.13, stdev=49.17 lat (msec): min=21, max=270, avg=93.13, stdev=49.17 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 33], 10.00th=[ 40], 20.00th=[ 51], | 30.00th=[ 58], 40.00th=[ 68], 50.00th=[ 84], 60.00th=[ 99], | 70.00th=[ 114], 80.00th=[ 136], 90.00th=[ 163], 95.00th=[ 190], | 99.00th=[ 220], 99.50th=[ 257], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 285, per=23.97%, avg=107.64, stdev=53.11, samples=86 iops : min= 1, max= 17, avg= 5.93, stdev= 3.38, samples=86 lat (msec) : 10=0.18%, 20=5.16%, 50=32.03%, 100=32.21%, 250=29.54% lat (msec) : 500=0.71% cpu : usr=0.03%, sys=1.21%, ctx=759, 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=268,294,0,0 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=180161: Mon Sep 14 07:44:26 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6256KiB/51950msec) clat (msec): min=6, max=260, avg=51.51, stdev=43.96 lat (msec): min=6, max=260, avg=51.51, stdev=43.96 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 75], 90.00th=[ 113], 95.00th=[ 155], | 99.00th=[ 207], 99.50th=[ 255], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 30, max= 352, per=28.70%, avg=123.97, stdev=84.53, samples=99 iops : min= 1, max= 22, avg= 6.98, stdev= 5.37, samples=99 write: IOPS=7, BW=116KiB/s (119kB/s)(6032KiB/51950msec); 0 zone resets clat (msec): min=16, max=324, avg=84.04, stdev=55.39 lat (msec): min=16, max=324, avg=84.04, stdev=55.39 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 48], 40.00th=[ 57], 50.00th=[ 66], 60.00th=[ 77], | 70.00th=[ 94], 80.00th=[ 123], 90.00th=[ 161], 95.00th=[ 199], | 99.00th=[ 275], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 320, per=25.59%, avg=114.91, stdev=62.09, samples=101 iops : min= 1, max= 20, avg= 6.41, stdev= 3.95, samples=101 lat (msec) : 10=0.65%, 20=9.51%, 50=39.71%, 100=29.30%, 250=19.53% lat (msec) : 500=1.30% cpu : usr=0.06%, sys=1.47%, ctx=1138, 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=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=180162: Mon Sep 14 07:44:26 2026 read: IOPS=7, BW=116KiB/s (119kB/s)(6032KiB/51956msec) clat (msec): min=6, max=269, avg=54.81, stdev=48.20 lat (msec): min=6, max=269, avg=54.82, stdev=48.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 38], 60.00th=[ 44], | 70.00th=[ 60], 80.00th=[ 84], 90.00th=[ 123], 95.00th=[ 167], | 99.00th=[ 236], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 352, per=27.86%, avg=120.34, stdev=74.98, samples=97 iops : min= 1, max= 22, avg= 6.74, stdev= 4.74, samples=97 write: IOPS=7, BW=120KiB/s (123kB/s)(6256KiB/51956msec); 0 zone resets clat (msec): min=17, max=331, avg=79.45, stdev=50.23 lat (msec): min=17, max=331, avg=79.46, stdev=50.23 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 31], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 47], 40.00th=[ 54], 50.00th=[ 61], 60.00th=[ 78], | 70.00th=[ 94], 80.00th=[ 117], 90.00th=[ 144], 95.00th=[ 176], | 99.00th=[ 279], 99.50th=[ 313], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 320, per=27.39%, avg=122.99, stdev=67.47, samples=99 iops : min= 1, max= 20, avg= 6.91, stdev= 4.28, samples=99 lat (msec) : 10=0.78%, 20=8.98%, 50=40.36%, 100=28.52%, 250=20.44% lat (msec) : 500=0.91% cpu : usr=0.06%, sys=1.51%, ctx=1186, 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=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=433KiB/s (443kB/s), 96.0KiB/s-120KiB/s (99.3kB/s-123kB/s), io=21.0MiB (23.0MB), run=44043-51956msec WRITE: bw=450KiB/s (460kB/s), 107KiB/s-123KiB/s (109kB/s-126kB/s), io=22.8MiB (23.9MB), run=44043-51956msec 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=180180: Mon Sep 14 07:44:46 2026 read: IOPS=1, BW=1696KiB/s (1736kB/s)(7168KiB/4227msec) clat (msec): min=125, max=797, avg=247.99, stdev=244.93 lat (msec): min=125, max=797, avg=247.99, stdev=244.93 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 127], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 140], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 209], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 2007, max= 4598, per=98.36%, avg=3487.00, stdev=1334.33, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1211KiB/s (1240kB/s)(5120KiB/4227msec); 0 zone resets clat (msec): min=160, max=1051, avg=485.23, stdev=347.11 lat (msec): min=160, max=1053, avg=485.73, stdev=347.97 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1771, max= 2035, per=39.16%, avg=1943.40, stdev=104.23, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=58.33%, 500=16.67%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.82%, 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=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=180181: Mon Sep 14 07:44:46 2026 read: IOPS=0, BW=439KiB/s (450kB/s)(2048KiB/4664msec) clat (msec): min=219, max=586, avg=402.56, stdev=259.43 lat (msec): min=219, max=586, avg=402.56, stdev=259.43 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1537, max= 2007, per=49.99%, avg=1772.00, stdev=332.34, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2196KiB/s (2248kB/s)(10.0MiB/4664msec); 0 zone resets clat (msec): min=172, max=903, avg=362.76, stdev=262.60 lat (msec): min=173, max=903, avg=362.87, stdev=262.58 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 201], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 249], | 70.00th=[ 305], 80.00th=[ 372], 90.00th=[ 793], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1537, max= 3856, per=49.94%, avg=2478.67, stdev=937.88, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=58.33%, 500=16.67%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=3.30%, ctx=120, 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=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=180182: Mon Sep 14 07:44:46 2026 read: IOPS=1, BW=1064KiB/s (1089kB/s)(6144KiB/5777msec) clat (msec): min=320, max=726, avg=450.98, stdev=151.22 lat (msec): min=320, max=726, avg=450.98, stdev=151.22 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 426], | 70.00th=[ 514], 80.00th=[ 514], 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= 1771, max= 2043, per=55.47%, avg=1966.40, stdev=112.36, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1064KiB/s (1089kB/s)(6144KiB/5777msec); 0 zone resets clat (msec): min=182, max=1317, avg=485.38, stdev=430.81 lat (msec): min=182, max=1317, avg=487.78, stdev=429.25 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 330], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1597, max= 3856, per=44.95%, avg=2231.00, stdev=922.61, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=16.67%, 500=50.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=109, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180183: Mon Sep 14 07:44:46 2026 read: IOPS=1, BW=1106KiB/s (1132kB/s)(5120KiB/4631msec) clat (msec): min=130, max=940, avg=361.57, stdev=331.13 lat (msec): min=130, max=940, avg=361.57, stdev=331.13 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1976, max= 5314, per=100.00%, avg=3645.00, stdev=2360.32, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1548KiB/s (1585kB/s)(7168KiB/4631msec); 0 zone resets clat (msec): min=127, max=1281, avg=373.71, stdev=409.66 lat (msec): min=127, max=1281, avg=373.88, stdev=409.62 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 186], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 409], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 3303, max= 4015, per=75.05%, avg=3724.67, stdev=373.73, samples=3 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=3 lat (msec) : 250=58.33%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.11%, ctx=73, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3545KiB/s (3630kB/s), 439KiB/s-1696KiB/s (450kB/s-1736kB/s), io=20.0MiB (20.0MB), run=4227-5777msec WRITE: bw=4963KiB/s (5082kB/s), 1064KiB/s-2196KiB/s (1089kB/s-2248kB/s), io=28.0MiB (29.4MB), run=4227-5777msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180186: Mon Sep 14 07:44:47 2026 read: IOPS=1, BW=1615KiB/s (1654kB/s)(7168KiB/4439msec) clat (usec): min=576, max=509201, avg=241731.34, stdev=230454.46 lat (usec): min=578, max=509203, avg=241733.23, stdev=230454.83 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 619], | 30.00th=[ 930], 40.00th=[ 930], 50.00th=[346031], 60.00th=[408945], | 70.00th=[408945], 80.00th=[425722], 90.00th=[509608], 95.00th=[509608], | 99.00th=[509608], 99.50th=[509608], 99.90th=[509608], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 1831, max= 3976, per=64.41%, avg=2350.40, stdev=912.59, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1153KiB/s (1181kB/s)(5120KiB/4439msec); 0 zone resets clat (msec): min=353, max=897, avg=548.05, stdev=226.06 lat (msec): min=353, max=897, avg=548.16, stdev=226.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1946, max= 3799, per=50.79%, avg=2594.67, stdev=1044.02, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 500=41.67%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=11.94%, ctx=156, 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=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=180187: Mon Sep 14 07:44:47 2026 read: IOPS=0, BW=365KiB/s (374kB/s)(2048KiB/5612msec) clat (msec): min=191, max=235, avg=213.33, stdev=31.35 lat (msec): min=191, max=235, avg=213.33, stdev=31.35 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 236], | 70.00th=[ 236], 80.00th=[ 236], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 1605, max= 1899, per=48.01%, avg=1752.00, stdev=207.89, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1825KiB/s (1868kB/s)(10.0MiB/5612msec); 0 zone resets clat (msec): min=148, max=1600, avg=517.70, stdev=452.57 lat (msec): min=149, max=1600, avg=518.26, stdev=452.23 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 194], | 30.00th=[ 197], 40.00th=[ 236], 50.00th=[ 243], 60.00th=[ 397], | 70.00th=[ 592], 80.00th=[ 743], 90.00th=[ 835], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 1899, max= 6144, per=59.18%, avg=3023.33, stdev=1744.87, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (msec) : 250=58.33%, 500=8.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.43%, ctx=202, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180188: Mon Sep 14 07:44:47 2026 read: IOPS=1, BW=1246KiB/s (1276kB/s)(6144KiB/4930msec) clat (usec): min=684, max=560094, avg=319251.52, stdev=194879.63 lat (usec): min=685, max=560095, avg=319252.82, stdev=194879.62 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[200279], | 30.00th=[200279], 40.00th=[346031], 50.00th=[346031], 60.00th=[383779], | 70.00th=[425722], 80.00th=[425722], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1899, max= 4079, per=90.93%, avg=3318.00, stdev=1229.97, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1246KiB/s (1276kB/s)(6144KiB/4930msec); 0 zone resets clat (msec): min=157, max=647, avg=501.80, stdev=188.17 lat (msec): min=157, max=647, avg=501.88, stdev=188.17 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 600], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1899, max= 4007, per=46.59%, avg=2380.40, stdev=910.95, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=33.33%, 750=41.67% cpu : usr=0.00%, sys=11.56%, ctx=228, 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=180189: Mon Sep 14 07:44:47 2026 read: IOPS=1, BW=1049KiB/s (1075kB/s)(5120KiB/4879msec) clat (usec): min=440, max=181699, avg=68937.80, stdev=92662.50 lat (usec): min=440, max=181700, avg=68938.71, stdev=92662.45 clat percentiles (usec): | 1.00th=[ 441], 5.00th=[ 441], 10.00th=[ 441], 20.00th=[ 441], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 3687], 60.00th=[ 3687], | 70.00th=[158335], 80.00th=[158335], 90.00th=[181404], 95.00th=[181404], | 99.00th=[181404], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 7599, max= 7599, per=100.00%, avg=7599.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1469KiB/s (1504kB/s)(7168KiB/4879msec); 0 zone resets clat (msec): min=227, max=1152, avg=646.43, stdev=343.52 lat (msec): min=227, max=1152, avg=646.98, stdev=343.38 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 355], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 558], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 961], 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= 1729, max= 2043, per=38.20%, avg=1951.50, stdev=120.97, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 250=25.00%, 500=16.67%, 750=8.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=9.88%, ctx=113, 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=3649KiB/s (3737kB/s), 365KiB/s-1615KiB/s (374kB/s-1654kB/s), io=20.0MiB (20.0MB), run=4439-5612msec WRITE: bw=5109KiB/s (5232kB/s), 1153KiB/s-1825KiB/s (1181kB/s-1868kB/s), io=28.0MiB (29.4MB), run=4439-5612msec 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=180198: Mon Sep 14 07:45:04 2026 read: IOPS=0, BW=3726KiB/s (3815kB/s)(12.0MiB/3298msec) clat (msec): min=300, max=1555, avg=1086.39, stdev=684.79 lat (msec): min=300, max=1555, avg=1086.39, stdev=684.79 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7656, max= 8192, per=100.00%, avg=7924.00, stdev=379.01, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.40%, ctx=42, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180200: Mon Sep 14 07:45:04 2026 read: IOPS=0, BW=1192KiB/s (1220kB/s)(4096KiB/3437msec) clat (nsec): min=1159.8M, max=1159.8M, avg=1159812116.00, stdev= 0.00 lat (nsec): min=1159.8M, max=1159.8M, avg=1159814166.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7656, max= 7656, per=100.00%, avg=7656.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2383KiB/s (2441kB/s)(8192KiB/3437msec); 0 zone resets clat (msec): min=621, max=1563, avg=1092.61, stdev=665.66 lat (msec): min=622, max=1565, avg=1093.81, stdev=666.75 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8159, max= 8159, per=95.35%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=2.65%, ctx=45, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180202: Mon Sep 14 07:45:04 2026 write: IOPS=0, BW=3209KiB/s (3286kB/s)(12.0MiB/3829msec); 0 zone resets clat (msec): min=269, max=1944, avg=1262.63, stdev=879.76 lat (msec): min=273, max=1945, avg=1264.23, stdev=877.78 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7953, max= 8159, per=94.15%, avg=8056.00, stdev=145.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.05%, sys=3.11%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180203: Mon Sep 14 07:45:04 2026 write: IOPS=1, BW=4554KiB/s (4664kB/s)(12.0MiB/2698msec); 0 zone resets clat (msec): min=296, max=1818, avg=851.85, stdev=840.56 lat (msec): min=296, max=1819, avg=852.29, stdev=840.45 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7937, max= 8047, per=93.40%, avg=7992.00, stdev=77.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.86%, ctx=50, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4767KiB/s (4881kB/s), 1192KiB/s-3726KiB/s (1220kB/s-3815kB/s), io=16.0MiB (16.8MB), run=3298-3437msec WRITE: bw=8558KiB/s (8763kB/s), 2383KiB/s-4554KiB/s (2441kB/s-4664kB/s), io=32.0MiB (33.6MB), run=2698-3829msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180196: Mon Sep 14 07:45:04 2026 read: IOPS=0, BW=3767KiB/s (3857kB/s)(12.0MiB/3262msec) clat (msec): min=832, max=1279, avg=1016.43, stdev=233.73 lat (msec): min=832, max=1279, avg=1016.43, stdev=233.73 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7488, max= 8159, per=100.00%, avg=7823.50, stdev=474.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=10.70%, ctx=322, 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=180197: Mon Sep 14 07:45:04 2026 read: IOPS=0, BW=1483KiB/s (1519kB/s)(4096KiB/2762msec) clat (nsec): min=859461k, max=859461k, avg=859461472.00, stdev= 0.00 lat (nsec): min=859464k, max=859464k, avg=859464294.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 860], 80.00th=[ 860], 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= 7406, max= 7406, per=100.00%, avg=7406.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2966KiB/s (3037kB/s)(8192KiB/2762msec); 0 zone resets clat (msec): min=404, max=1128, avg=766.60, stdev=511.86 lat (msec): min=404, max=1129, avg=767.12, stdev=512.33 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 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= 7406, max= 7406, per=91.34%, avg=7406.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.51%, ctx=95, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180199: Mon Sep 14 07:45:04 2026 write: IOPS=0, BW=3041KiB/s (3114kB/s)(12.0MiB/4041msec); 0 zone resets clat (msec): min=263, max=2139, avg=1320.73, stdev=960.46 lat (msec): min=266, max=2139, avg=1321.79, stdev=959.22 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7876, max= 8175, per=98.98%, avg=8025.50, stdev=211.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.20%, 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=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=180201: Mon Sep 14 07:45:04 2026 write: IOPS=0, BW=3880KiB/s (3973kB/s)(12.0MiB/3167msec); 0 zone resets clat (msec): min=354, max=1967, avg=1007.95, stdev=848.83 lat (msec): min=354, max=1967, avg=1008.31, stdev=848.81 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7488, max= 8094, per=96.09%, avg=7791.00, stdev=428.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.03%, sys=3.98%, ctx=63, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5023KiB/s (5143kB/s), 1483KiB/s-3767KiB/s (1519kB/s-3857kB/s), io=16.0MiB (16.8MB), run=2762-3262msec WRITE: bw=8109KiB/s (8303kB/s), 2966KiB/s-3880KiB/s (3037kB/s-3973kB/s), io=32.0MiB (33.6MB), run=2762-4041msec