== sanity test 398b: DIO and buffer IO race ============== 22:58:57 (1783565937) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.85778 s, 17.6 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=183840: Wed Jul 8 23:00:00 2026 read: IOPS=27, BW=110KiB/s (113kB/s)(5992KiB/54302msec) clat (usec): min=39, max=922303, avg=19667.37, stdev=25537.06 lat (usec): min=40, max=922304, avg=19669.93, stdev=25536.59 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 7177], 10.00th=[ 9110], 20.00th=[ 11076], | 30.00th=[ 12911], 40.00th=[ 15008], 50.00th=[ 17695], 60.00th=[ 19792], | 70.00th=[ 22414], 80.00th=[ 26084], 90.00th=[ 30540], 95.00th=[ 36963], | 99.00th=[ 57934], 99.50th=[ 67634], 99.90th=[106431], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 55, max= 215, per=25.41%, avg=112.31, stdev=26.91, samples=106 iops : min= 13, max= 53, avg=27.66, stdev= 6.74, samples=106 write: IOPS=28, BW=116KiB/s (119kB/s)(6296KiB/54302msec); 0 zone resets clat (usec): min=839, max=113250, avg=15580.76, stdev=12880.14 lat (usec): min=840, max=113252, avg=15583.92, stdev=12882.48 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 2040], 10.00th=[ 2671], 20.00th=[ 3687], | 30.00th=[ 6718], 40.00th=[ 10290], 50.00th=[ 12780], 60.00th=[ 15401], | 70.00th=[ 19530], 80.00th=[ 24511], 90.00th=[ 33817], 95.00th=[ 40109], | 99.00th=[ 56361], 99.50th=[ 61604], 99.90th=[105382], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 39, max= 247, per=25.52%, avg=117.89, stdev=34.38, samples=106 iops : min= 9, max= 61, avg=29.06, stdev= 8.62, samples=106 lat (usec) : 50=0.10%, 100=0.49%, 250=0.62%, 1000=0.20% lat (msec) : 2=2.31%, 4=8.56%, 10=14.19%, 20=39.84%, 50=31.97% lat (msec) : 100=1.60%, 250=0.10%, 1000=0.03% cpu : usr=0.10%, sys=20.36%, ctx=8758, 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=183841: Wed Jul 8 23:00:00 2026 read: IOPS=27, BW=110KiB/s (113kB/s)(5940KiB/54018msec) clat (usec): min=35, max=106985, avg=19347.92, stdev=10686.78 lat (usec): min=36, max=106986, avg=19348.73, stdev=10686.81 clat percentiles (usec): | 1.00th=[ 99], 5.00th=[ 8029], 10.00th=[ 9503], 20.00th=[ 11469], | 30.00th=[ 13173], 40.00th=[ 15139], 50.00th=[ 17433], 60.00th=[ 20055], | 70.00th=[ 22414], 80.00th=[ 25560], 90.00th=[ 31327], 95.00th=[ 37487], | 99.00th=[ 57934], 99.50th=[ 68682], 99.90th=[ 91751], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 6, max= 175, per=25.05%, avg=110.73, stdev=26.99, samples=106 iops : min= 1, max= 43, avg=27.26, stdev= 6.76, samples=106 write: IOPS=29, BW=118KiB/s (120kB/s)(6348KiB/54018msec); 0 zone resets clat (usec): min=754, max=885046, avg=15720.07, stdev=25027.08 lat (usec): min=755, max=885048, avg=15721.22, stdev=25027.05 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2180], 10.00th=[ 2769], 20.00th=[ 3654], | 30.00th=[ 6194], 40.00th=[ 10290], 50.00th=[ 12780], 60.00th=[ 15795], | 70.00th=[ 19006], 80.00th=[ 23987], 90.00th=[ 31589], 95.00th=[ 39060], | 99.00th=[ 58459], 99.50th=[ 64226], 99.90th=[ 72877], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 63, max= 247, per=25.80%, avg=119.22, stdev=35.11, samples=105 iops : min= 15, max= 61, avg=29.40, stdev= 8.83, samples=105 lat (usec) : 50=0.10%, 100=0.39%, 250=0.65%, 1000=0.33% lat (msec) : 2=1.95%, 4=9.28%, 10=13.57%, 20=40.33%, 50=31.54% lat (msec) : 100=1.79%, 250=0.03%, 1000=0.03% cpu : usr=0.13%, sys=20.26%, ctx=8632, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183842: Wed Jul 8 23:00:00 2026 read: IOPS=28, BW=113KiB/s (115kB/s)(6028KiB/53526msec) clat (usec): min=51, max=918542, avg=19683.78, stdev=25280.12 lat (usec): min=52, max=918543, avg=19685.08, stdev=25280.05 clat percentiles (usec): | 1.00th=[ 97], 5.00th=[ 8029], 10.00th=[ 9241], 20.00th=[ 11338], | 30.00th=[ 13173], 40.00th=[ 15139], 50.00th=[ 17433], 60.00th=[ 20055], | 70.00th=[ 22676], 80.00th=[ 25297], 90.00th=[ 30540], 95.00th=[ 35914], | 99.00th=[ 54264], 99.50th=[ 66323], 99.90th=[107480], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 6, max= 174, per=25.62%, avg=113.22, stdev=26.78, samples=105 iops : min= 1, max= 43, avg=27.90, stdev= 6.74, samples=105 write: IOPS=29, BW=117KiB/s (120kB/s)(6260KiB/53526msec); 0 zone resets clat (usec): min=790, max=93645, avg=15043.20, stdev=12404.63 lat (usec): min=790, max=93646, avg=15047.58, stdev=12401.81 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1975], 10.00th=[ 2671], 20.00th=[ 3490], | 30.00th=[ 5538], 40.00th=[ 9765], 50.00th=[12649], 60.00th=[15270], | 70.00th=[19268], 80.00th=[24249], 90.00th=[31589], 95.00th=[39060], | 99.00th=[54789], 99.50th=[58983], 99.90th=[87557], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 20, max= 176, per=25.39%, avg=117.32, stdev=33.78, samples=105 iops : min= 5, max= 44, avg=28.92, stdev= 8.50, samples=105 lat (usec) : 100=0.59%, 250=0.59%, 1000=0.23% lat (msec) : 2=2.38%, 4=9.41%, 10=14.06%, 20=38.83%, 50=32.39% lat (msec) : 100=1.46%, 250=0.03%, 1000=0.03% cpu : usr=0.13%, sys=20.36%, ctx=8625, 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=183843: Wed Jul 8 23:00:00 2026 read: IOPS=28, BW=114KiB/s (117kB/s)(6052KiB/53126msec) clat (usec): min=21, max=110297, avg=19058.74, stdev=10364.95 lat (usec): min=21, max=110299, avg=19060.85, stdev=10365.73 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 7242], 10.00th=[ 8848], 20.00th=[ 11207], | 30.00th=[ 13173], 40.00th=[ 15139], 50.00th=[ 17171], 60.00th=[ 20055], | 70.00th=[ 22938], 80.00th=[ 26084], 90.00th=[ 30802], 95.00th=[ 36439], | 99.00th=[ 50594], 99.50th=[ 58459], 99.90th=[ 88605], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 31, max= 191, per=26.14%, avg=115.52, stdev=25.58, samples=103 iops : min= 7, max= 47, avg=28.48, stdev= 6.41, samples=103 write: IOPS=29, BW=117KiB/s (120kB/s)(6236KiB/53126msec); 0 zone resets clat (usec): min=717, max=880970, avg=15367.09, stdev=25167.87 lat (usec): min=718, max=880972, avg=15368.93, stdev=25167.88 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 2180], 10.00th=[ 2737], 20.00th=[ 3621], | 30.00th=[ 5538], 40.00th=[ 9241], 50.00th=[ 12125], 60.00th=[ 14746], | 70.00th=[ 18744], 80.00th=[ 24773], 90.00th=[ 31851], 95.00th=[ 39060], | 99.00th=[ 54789], 99.50th=[ 60031], 99.90th=[107480], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 55, max= 231, per=25.84%, avg=119.40, stdev=32.92, samples=103 iops : min= 13, max= 57, avg=29.45, stdev= 8.24, samples=103 lat (usec) : 50=0.13%, 100=0.65%, 250=0.88%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=1.82%, 4=9.80%, 10=15.23%, 20=37.37%, 50=32.39% lat (msec) : 100=1.33%, 250=0.07%, 1000=0.03% cpu : usr=0.14%, sys=20.47%, ctx=8578, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=442KiB/s (453kB/s), 110KiB/s-114KiB/s (113kB/s-117kB/s), io=23.4MiB (24.6MB), run=53126-54302msec WRITE: bw=463KiB/s (474kB/s), 116KiB/s-118KiB/s (119kB/s-120kB/s), io=24.6MiB (25.7MB), run=53126-54302msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183845: Wed Jul 8 23:00:12 2026 read: IOPS=22, BW=91.1KiB/s (93.3kB/s)(5992KiB/65770msec) clat (msec): min=3, max=896, avg=18.07, stdev=26.32 lat (msec): min=3, max=896, avg=18.07, stdev=26.32 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 19], 80.00th=[ 25], 90.00th=[ 38], 95.00th=[ 47], | 99.00th=[ 68], 99.50th=[ 75], 99.90th=[ 104], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 15, max= 264, per=25.31%, avg=91.36, stdev=49.92, samples=129 iops : min= 3, max= 66, avg=22.43, stdev=12.59, samples=129 write: IOPS=23, BW=95.7KiB/s (98.0kB/s)(6296KiB/65770msec); 0 zone resets clat (msec): min=6, max=118, avg=24.44, stdev=15.48 lat (msec): min=6, max=118, avg=24.45, stdev=15.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 45], 95.00th=[ 56], | 99.00th=[ 79], 99.50th=[ 92], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 31, max= 264, per=25.55%, avg=96.58, stdev=48.67, samples=128 iops : min= 7, max= 66, avg=23.73, stdev=12.28, samples=128 lat (msec) : 4=0.23%, 10=20.05%, 20=41.73%, 50=32.91%, 100=4.85% lat (msec) : 250=0.20%, 1000=0.03% cpu : usr=0.13%, sys=10.35%, ctx=5812, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183846: Wed Jul 8 23:00:12 2026 read: IOPS=22, BW=89.4KiB/s (91.5kB/s)(5940KiB/66476msec) clat (msec): min=2, max=875, avg=18.38, stdev=26.29 lat (msec): min=2, max=875, avg=18.38, stdev=26.29 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 38], 95.00th=[ 47], | 99.00th=[ 72], 99.50th=[ 86], 99.90th=[ 104], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 280, per=24.78%, avg=89.47, stdev=52.92, samples=131 iops : min= 1, max= 70, avg=21.96, stdev=13.37, samples=131 write: IOPS=23, BW=95.5KiB/s (97.8kB/s)(6348KiB/66476msec); 0 zone resets clat (msec): min=4, max=132, avg=24.55, stdev=15.55 lat (msec): min=4, max=132, avg=24.55, stdev=15.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 36], 90.00th=[ 45], 95.00th=[ 56], | 99.00th=[ 79], 99.50th=[ 87], 99.90th=[ 120], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 32, max= 264, per=25.42%, avg=96.08, stdev=48.97, samples=130 iops : min= 8, max= 66, avg=23.62, stdev=12.34, samples=130 lat (msec) : 4=0.55%, 10=21.32%, 20=38.87%, 50=33.76%, 100=5.27% lat (msec) : 250=0.20%, 1000=0.03% cpu : usr=0.11%, sys=10.22%, ctx=5685, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183847: Wed Jul 8 23:00:12 2026 read: IOPS=22, BW=91.5KiB/s (93.6kB/s)(6028KiB/65915msec) clat (msec): min=3, max=101, avg=17.73, stdev=13.27 lat (msec): min=3, max=101, avg=17.73, stdev=13.27 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 37], 95.00th=[ 46], | 99.00th=[ 61], 99.50th=[ 75], 99.90th=[ 97], 99.95th=[ 103], | 99.99th=[ 103] bw ( KiB/s): min= 32, max= 248, per=25.64%, avg=92.54, stdev=48.80, samples=129 iops : min= 8, max= 62, avg=22.73, stdev=12.31, samples=129 write: IOPS=23, BW=94.0KiB/s (97.2kB/s)(6260KiB/65915msec); 0 zone resets clat (msec): min=5, max=907, avg=24.91, stdev=27.04 lat (msec): min=5, max=907, avg=24.91, stdev=27.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 44], 95.00th=[ 55], | 99.00th=[ 79], 99.50th=[ 89], 99.90th=[ 132], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 256, per=25.24%, avg=95.39, stdev=49.61, samples=130 iops : min= 1, max= 64, avg=23.44, stdev=12.52, samples=130 lat (msec) : 4=0.23%, 10=20.08%, 20=41.24%, 50=33.33%, 100=5.01% lat (msec) : 250=0.07%, 1000=0.03% cpu : usr=0.11%, sys=10.38%, ctx=5920, 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=183848: Wed Jul 8 23:00:12 2026 read: IOPS=22, BW=91.2KiB/s (93.4kB/s)(6052KiB/66373msec) clat (usec): min=3134, max=94825, avg=18167.79, stdev=14235.92 lat (usec): min=3135, max=94825, avg=18168.67, stdev=14235.87 clat percentiles (usec): | 1.00th=[ 3785], 5.00th=[ 5276], 10.00th=[ 6325], 20.00th=[ 7701], | 30.00th=[ 9372], 40.00th=[11076], 50.00th=[13173], 60.00th=[15401], | 70.00th=[19530], 80.00th=[26870], 90.00th=[39060], 95.00th=[49021], | 99.00th=[66323], 99.50th=[82314], 99.90th=[90702], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 23, max= 248, per=25.56%, avg=92.26, stdev=50.06, samples=130 iops : min= 5, max= 62, avg=22.66, stdev=12.63, samples=130 write: IOPS=23, BW=93.0KiB/s (96.2kB/s)(6236KiB/66373msec); 0 zone resets clat (msec): min=5, max=878, avg=24.80, stdev=26.32 lat (msec): min=5, max=878, avg=24.80, stdev=26.32 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 36], 90.00th=[ 45], 95.00th=[ 54], | 99.00th=[ 75], 99.50th=[ 83], 99.90th=[ 115], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 15, max= 248, per=24.90%, avg=94.11, stdev=49.28, samples=131 iops : min= 3, max= 62, avg=23.12, stdev=12.43, samples=131 lat (msec) : 4=0.68%, 10=20.51%, 20=40.49%, 50=32.58%, 100=5.60% lat (msec) : 250=0.10%, 1000=0.03% cpu : usr=0.12%, sys=10.12%, ctx=5742, 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=361KiB/s (370kB/s), 89.4KiB/s-91.5KiB/s (91.5kB/s-93.6kB/s), io=23.4MiB (24.6MB), run=65770-66476msec WRITE: bw=378KiB/s (387kB/s), 93.0KiB/s-95.7KiB/s (96.2kB/s-98.0kB/s), io=24.6MiB (25.7MB), run=65770-66476msec 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=183875: Wed Jul 8 23:00:34 2026 read: IOPS=24, BW=385KiB/s (394kB/s)(5920KiB/15378msec) clat (usec): min=67, max=59978, avg=21671.85, stdev=10582.86 lat (usec): min=67, max=59978, avg=21672.73, stdev=10582.87 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 5342], 10.00th=[ 9896], 20.00th=[13173], | 30.00th=[15664], 40.00th=[18744], 50.00th=[21627], 60.00th=[23200], | 70.00th=[25822], 80.00th=[29230], 90.00th=[33424], 95.00th=[41681], | 99.00th=[52691], 99.50th=[60031], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 223, max= 571, per=25.10%, avg=380.00, stdev=95.55, samples=30 iops : min= 13, max= 35, avg=23.20, stdev= 6.10, samples=30 write: IOPS=25, BW=414KiB/s (424kB/s)(6368KiB/15378msec); 0 zone resets clat (usec): min=1471, max=107626, avg=18415.78, stdev=14880.53 lat (usec): min=1472, max=107629, avg=18417.40, stdev=14880.65 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 3458], 10.00th=[ 4146], 20.00th=[ 5669], | 30.00th=[ 8455], 40.00th=[ 11731], 50.00th=[ 14353], 60.00th=[ 17695], | 70.00th=[ 22152], 80.00th=[ 29230], 90.00th=[ 38011], 95.00th=[ 49021], | 99.00th=[ 64750], 99.50th=[ 90702], 99.90th=[107480], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 159, max= 636, per=25.90%, avg=412.60, stdev=101.04, samples=30 iops : min= 9, max= 39, avg=25.23, stdev= 6.38, samples=30 lat (usec) : 100=0.91%, 250=1.17% lat (msec) : 2=1.17%, 4=3.39%, 10=16.02%, 20=32.81%, 50=41.54% lat (msec) : 100=2.86%, 250=0.13% cpu : usr=0.10%, sys=22.43%, ctx=2563, 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=183876: Wed Jul 8 23:00:34 2026 read: IOPS=23, BW=371KiB/s (379kB/s)(5744KiB/15501msec) clat (usec): min=42, max=76283, avg=21526.20, stdev=12112.95 lat (usec): min=43, max=76285, avg=21527.25, stdev=12112.92 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 127], 10.00th=[ 9896], 20.00th=[13435], | 30.00th=[15008], 40.00th=[17171], 50.00th=[19530], 60.00th=[22676], | 70.00th=[25560], 80.00th=[29230], 90.00th=[37487], 95.00th=[45351], | 99.00th=[55837], 99.50th=[70779], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 223, max= 544, per=24.44%, avg=370.00, stdev=85.58, samples=30 iops : min= 13, max= 34, avg=22.60, stdev= 5.31, samples=30 write: IOPS=26, BW=422KiB/s (432kB/s)(6544KiB/15501msec); 0 zone resets clat (usec): min=1291, max=87755, avg=18739.85, stdev=13717.87 lat (usec): min=1292, max=87758, avg=18741.71, stdev=13717.64 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 3359], 10.00th=[ 4490], 20.00th=[ 6063], | 30.00th=[ 8848], 40.00th=[12256], 50.00th=[15533], 60.00th=[20317], | 70.00th=[23987], 80.00th=[29492], 90.00th=[38011], 95.00th=[44303], | 99.00th=[59507], 99.50th=[67634], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 221, max= 608, per=25.99%, avg=414.07, stdev=87.68, samples=30 iops : min= 13, max= 38, avg=25.33, stdev= 5.50, samples=30 lat (usec) : 50=0.26%, 100=1.30%, 250=1.43% lat (msec) : 2=1.30%, 4=3.12%, 10=14.45%, 20=34.11%, 50=41.02% lat (msec) : 100=2.99% cpu : usr=0.07%, sys=22.39%, ctx=2439, 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=183878: Wed Jul 8 23:00:34 2026 read: IOPS=24, BW=396KiB/s (405kB/s)(6256KiB/15815msec) clat (usec): min=51, max=100081, avg=22545.67, stdev=13190.83 lat (usec): min=52, max=100082, avg=22546.61, stdev=13190.87 clat percentiles (usec): | 1.00th=[ 73], 5.00th=[ 396], 10.00th=[ 10159], 20.00th=[ 13173], | 30.00th=[ 15664], 40.00th=[ 17433], 50.00th=[ 20317], 60.00th=[ 23725], | 70.00th=[ 26870], 80.00th=[ 30802], 90.00th=[ 35914], 95.00th=[ 44827], | 99.00th=[ 73925], 99.50th=[ 89654], 99.90th=[100140], 99.95th=[100140], | 99.99th=[100140] bw ( KiB/s): min= 222, max= 576, per=25.90%, avg=392.13, stdev=101.18, samples=31 iops : min= 13, max= 36, avg=23.97, stdev= 6.55, samples=31 write: IOPS=23, BW=381KiB/s (391kB/s)(6032KiB/15815msec); 0 zone resets clat (usec): min=1256, max=66193, avg=18256.09, stdev=13402.67 lat (usec): min=1257, max=66195, avg=18257.91, stdev=13402.78 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 3228], 10.00th=[ 4293], 20.00th=[ 5669], | 30.00th=[ 8979], 40.00th=[11731], 50.00th=[15401], 60.00th=[19006], | 70.00th=[23725], 80.00th=[28705], 90.00th=[35914], 95.00th=[46400], | 99.00th=[63177], 99.50th=[64226], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 191, max= 608, per=23.43%, avg=373.26, stdev=117.18, samples=31 iops : min= 11, max= 38, avg=22.81, stdev= 7.26, samples=31 lat (usec) : 100=1.43%, 250=1.04%, 500=0.13% lat (msec) : 2=1.04%, 4=2.73%, 10=14.45%, 20=34.90%, 50=41.28% lat (msec) : 100=2.86%, 250=0.13% cpu : usr=0.09%, sys=21.87%, ctx=2538, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183880: Wed Jul 8 23:00:34 2026 read: IOPS=24, BW=384KiB/s (394kB/s)(6032KiB/15690msec) clat (usec): min=54, max=86115, avg=22043.30, stdev=13235.32 lat (usec): min=56, max=86116, avg=22044.20, stdev=13235.39 clat percentiles (usec): | 1.00th=[ 79], 5.00th=[ 130], 10.00th=[ 8717], 20.00th=[12911], | 30.00th=[15533], 40.00th=[17433], 50.00th=[20055], 60.00th=[23462], | 70.00th=[26608], 80.00th=[31589], 90.00th=[38011], 95.00th=[43779], | 99.00th=[72877], 99.50th=[76022], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 221, max= 576, per=25.15%, avg=380.74, stdev=106.36, samples=31 iops : min= 13, max= 36, avg=23.26, stdev= 6.77, samples=31 write: IOPS=24, BW=399KiB/s (408kB/s)(6256KiB/15690msec); 0 zone resets clat (usec): min=1549, max=75294, avg=18502.70, stdev=14687.30 lat (usec): min=1549, max=75296, avg=18504.45, stdev=14687.23 clat percentiles (usec): | 1.00th=[ 2278], 5.00th=[ 3458], 10.00th=[ 4293], 20.00th=[ 5407], | 30.00th=[ 8356], 40.00th=[11207], 50.00th=[14353], 60.00th=[18220], | 70.00th=[23725], 80.00th=[29492], 90.00th=[41157], 95.00th=[49021], | 99.00th=[71828], 99.50th=[74974], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 191, max= 640, per=25.06%, avg=399.23, stdev=98.17, samples=31 iops : min= 11, max= 40, avg=24.42, stdev= 6.38, samples=31 lat (usec) : 100=0.65%, 250=3.26%, 750=0.13% lat (msec) : 2=0.39%, 4=3.91%, 10=15.36%, 20=33.59%, 50=38.93% lat (msec) : 100=3.78% cpu : usr=0.10%, sys=22.07%, ctx=2355, 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=1515KiB/s (1551kB/s), 371KiB/s-396KiB/s (379kB/s-405kB/s), io=23.4MiB (24.5MB), run=15378-15815msec WRITE: bw=1593KiB/s (1632kB/s), 381KiB/s-422KiB/s (391kB/s-432kB/s), io=24.6MiB (25.8MB), run=15378-15815msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183873: Wed Jul 8 23:00:37 2026 read: IOPS=19, BW=313KiB/s (320kB/s)(5920KiB/18937msec) clat (msec): min=4, max=117, avg=20.17, stdev=16.47 lat (msec): min=4, max=118, avg=20.17, stdev=16.47 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 44], 95.00th=[ 54], | 99.00th=[ 86], 99.50th=[ 94], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 127, max= 768, per=24.43%, avg=307.08, stdev=173.40, samples=37 iops : min= 7, max= 48, avg=18.70, stdev=10.98, samples=37 write: IOPS=21, BW=336KiB/s (344kB/s)(6368KiB/18937msec); 0 zone resets clat (msec): min=7, max=104, avg=28.68, stdev=17.23 lat (msec): min=7, max=104, avg=28.68, stdev=17.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 54], 95.00th=[ 64], | 99.00th=[ 94], 99.50th=[ 102], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 128, max= 768, per=25.25%, avg=334.05, stdev=161.77, samples=37 iops : min= 8, max= 48, avg=20.41, stdev=10.25, samples=37 lat (msec) : 10=16.02%, 20=36.98%, 50=37.50%, 100=9.11%, 250=0.39% cpu : usr=0.10%, sys=9.91%, ctx=1475, 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=183874: Wed Jul 8 23:00:37 2026 read: IOPS=18, BW=302KiB/s (309kB/s)(5744KiB/19010msec) clat (usec): min=4522, max=74155, avg=20322.99, stdev=14155.03 lat (usec): min=4523, max=74156, avg=20323.81, stdev=14155.06 clat percentiles (usec): | 1.00th=[ 5211], 5.00th=[ 6456], 10.00th=[ 7504], 20.00th=[ 9110], | 30.00th=[11338], 40.00th=[13304], 50.00th=[15139], 60.00th=[17957], | 70.00th=[22938], 80.00th=[29754], 90.00th=[43254], 95.00th=[52167], | 99.00th=[64226], 99.50th=[67634], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 57, max= 736, per=23.79%, avg=299.03, stdev=157.07, samples=37 iops : min= 3, max= 46, avg=18.22, stdev= 9.96, samples=37 write: IOPS=21, BW=344KiB/s (353kB/s)(6544KiB/19010msec); 0 zone resets clat (msec): min=7, max=132, avg=28.28, stdev=17.94 lat (msec): min=7, max=132, avg=28.28, stdev=17.94 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 53], 95.00th=[ 59], | 99.00th=[ 94], 99.50th=[ 105], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 160, max= 832, per=25.43%, avg=336.49, stdev=159.20, samples=37 iops : min= 10, max= 52, avg=20.57, stdev=10.13, samples=37 lat (msec) : 10=12.24%, 20=40.49%, 50=37.63%, 100=9.24%, 250=0.39% cpu : usr=0.08%, sys=10.25%, ctx=1577, 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=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=183877: Wed Jul 8 23:00:37 2026 read: IOPS=20, BW=328KiB/s (336kB/s)(6256KiB/19047msec) clat (msec): min=4, max=121, avg=20.80, stdev=16.19 lat (msec): min=4, max=121, avg=20.80, stdev=16.19 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 44], 95.00th=[ 53], | 99.00th=[ 89], 99.50th=[ 92], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 125, max= 960, per=26.04%, avg=327.30, stdev=180.61, samples=37 iops : min= 7, max= 60, avg=19.97, stdev=11.47, samples=37 write: IOPS=19, BW=317KiB/s (324kB/s)(6032KiB/19047msec); 0 zone resets clat (usec): min=7144, max=99035, avg=28645.17, stdev=17095.45 lat (usec): min=7147, max=99036, avg=28646.99, stdev=17095.43 clat percentiles (usec): | 1.00th=[ 8356], 5.00th=[10290], 10.00th=[11731], 20.00th=[14353], | 30.00th=[16909], 40.00th=[20055], 50.00th=[22938], 60.00th=[28705], | 70.00th=[34341], 80.00th=[41681], 90.00th=[53216], 95.00th=[61080], | 99.00th=[86508], 99.50th=[92799], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 96, max= 800, per=23.29%, avg=308.19, stdev=151.52, samples=37 iops : min= 6, max= 50, avg=18.78, stdev= 9.59, samples=37 lat (msec) : 10=13.28%, 20=40.49%, 50=36.85%, 100=9.24%, 250=0.13% cpu : usr=0.08%, sys=10.08%, ctx=1572, 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=183879: Wed Jul 8 23:00:37 2026 read: IOPS=19, BW=317KiB/s (324kB/s)(6032KiB/19046msec) clat (usec): min=4497, max=88797, avg=21428.68, stdev=15431.02 lat (usec): min=4499, max=88798, avg=21431.46, stdev=15429.41 clat percentiles (usec): | 1.00th=[ 4686], 5.00th=[ 6849], 10.00th=[ 7767], 20.00th=[ 9634], | 30.00th=[11994], 40.00th=[13960], 50.00th=[16319], 60.00th=[19006], | 70.00th=[22938], 80.00th=[29230], 90.00th=[46924], 95.00th=[55837], | 99.00th=[70779], 99.50th=[72877], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 95, max= 832, per=24.52%, avg=308.24, stdev=156.30, samples=37 iops : min= 5, max= 52, avg=18.78, stdev= 9.87, samples=37 write: IOPS=20, BW=328KiB/s (336kB/s)(6256KiB/19046msec); 0 zone resets clat (msec): min=6, max=134, avg=27.72, stdev=17.53 lat (msec): min=6, max=134, avg=27.72, stdev=17.53 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 41], 90.00th=[ 54], 95.00th=[ 64], | 99.00th=[ 80], 99.50th=[ 103], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 127, max= 800, per=24.40%, avg=322.81, stdev=158.82, samples=37 iops : min= 7, max= 50, avg=19.70, stdev=10.12, samples=37 lat (msec) : 10=13.41%, 20=40.10%, 50=36.46%, 100=9.77%, 250=0.26% cpu : usr=0.09%, sys=10.10%, ctx=1494, 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=1258KiB/s (1288kB/s), 302KiB/s-328KiB/s (309kB/s-336kB/s), io=23.4MiB (24.5MB), run=18937-19047msec WRITE: bw=1323KiB/s (1355kB/s), 317KiB/s-344KiB/s (324kB/s-353kB/s), io=24.6MiB (25.8MB), run=18937-19047msec 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=183892: Wed Jul 8 23:00:47 2026 read: IOPS=1, BW=1814KiB/s (1857kB/s)(7168KiB/3952msec) clat (msec): min=92, max=1519, avg=358.27, stdev=517.86 lat (msec): min=92, max=1519, avg=358.27, stdev=517.87 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 171], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 300], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1753, max= 4071, per=52.13%, avg=2475.50, stdev=1072.18, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1296KiB/s (1327kB/s)(5120KiB/3952msec); 0 zone resets clat (msec): min=160, max=320, avg=257.46, stdev=60.33 lat (msec): min=160, max=321, avg=257.54, stdev=60.31 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 2035, max= 4047, per=40.73%, avg=2708.33, stdev=1159.33, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=11.09%, ctx=129, 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=183893: Wed Jul 8 23:00:47 2026 read: IOPS=0, BW=490KiB/s (501kB/s)(2048KiB/4182msec) clat (msec): min=111, max=134, avg=122.54, stdev=16.25 lat (msec): min=111, max=134, avg=122.54, stdev=16.25 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 134], | 70.00th=[ 134], 80.00th=[ 134], 90.00th=[ 134], 95.00th=[ 134], | 99.00th=[ 134], 99.50th=[ 134], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 1790, max= 2043, per=40.36%, avg=1916.50, stdev=178.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2449KiB/s (2507kB/s)(10.0MiB/4182msec); 0 zone resets clat (msec): min=68, max=1505, avg=388.09, stdev=482.08 lat (msec): min=68, max=1506, avg=388.17, stdev=482.08 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 85], | 30.00th=[ 93], 40.00th=[ 114], 50.00th=[ 161], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 518], 90.00th=[ 969], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 2035, max= 8192, per=92.01%, avg=6117.67, stdev=3535.85, samples=3 iops : min= 1, max= 8, avg= 5.33, stdev= 3.79, samples=3 lat (msec) : 100=25.00%, 250=50.00%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.38%, ctx=168, 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=183894: Wed Jul 8 23:00:47 2026 read: IOPS=1, BW=1481KiB/s (1517kB/s)(6144KiB/4148msec) clat (msec): min=80, max=265, avg=151.81, stdev=85.73 lat (msec): min=80, max=265, avg=151.81, stdev=85.73 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 90], | 30.00th=[ 90], 40.00th=[ 105], 50.00th=[ 105], 60.00th=[ 113], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 2048, max= 4071, per=71.36%, avg=3388.67, stdev=1161.11, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1481KiB/s (1517kB/s)(6144KiB/4148msec); 0 zone resets clat (msec): min=163, max=1500, avg=536.68, stdev=503.20 lat (msec): min=163, max=1500, avg=536.78, stdev=503.20 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 305], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 2023, max= 4096, per=44.21%, avg=2939.75, stdev=1070.59, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=9.55%, ctx=128, 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=183895: Wed Jul 8 23:00:47 2026 read: IOPS=1, BW=1187KiB/s (1216kB/s)(5120KiB/4312msec) clat (msec): min=19, max=660, avg=305.35, stdev=263.57 lat (msec): min=19, max=660, avg=305.35, stdev=263.57 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 20], 10.00th=[ 20], 20.00th=[ 20], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2023, max= 4096, per=57.29%, avg=2720.67, stdev=1191.12, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1662KiB/s (1702kB/s)(7168KiB/4312msec); 0 zone resets clat (msec): min=25, max=1542, avg=377.66, stdev=525.14 lat (msec): min=25, max=1542, avg=377.76, stdev=525.16 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 26], 10.00th=[ 26], 20.00th=[ 101], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 249], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 342], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 1799, max= 4071, per=39.63%, avg=2635.00, stdev=1249.20, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 20=8.33%, 50=8.33%, 100=16.67%, 250=16.67%, 500=33.33% lat (msec) : 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=9.46%, ctx=305, 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=4750KiB/s (4864kB/s), 490KiB/s-1814KiB/s (501kB/s-1857kB/s), io=20.0MiB (20.0MB), run=3952-4312msec WRITE: bw=6649KiB/s (6809kB/s), 1296KiB/s-2449KiB/s (1327kB/s-2507kB/s), io=28.0MiB (29.4MB), run=3952-4312msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183888: Wed Jul 8 23:00:47 2026 read: IOPS=2, BW=2517KiB/s (2577kB/s)(7168KiB/2848msec) clat (usec): min=590, max=1357.0k, avg=289066.18, stdev=474699.69 lat (usec): min=592, max=1357.0k, avg=289067.82, stdev=474699.68 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], | 20.00th=[ 100140], 30.00th=[ 117965], 40.00th=[ 117965], | 50.00th=[ 117965], 60.00th=[ 125305], 70.00th=[ 125305], | 80.00th=[ 204473], 90.00th=[1350566], 95.00th=[1350566], | 99.00th=[1350566], 99.50th=[1350566], 99.90th=[1350566], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 3500, max= 6144, per=100.00%, avg=4822.00, stdev=1869.59, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1798KiB/s (1841kB/s)(5120KiB/2848msec); 0 zone resets clat (msec): min=73, max=205, avg=157.62, stdev=52.28 lat (msec): min=73, max=205, avg=157.69, stdev=52.27 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 2048, max= 5988, per=59.76%, avg=4018.00, stdev=2786.00, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=66.67%, 2000=8.33% cpu : usr=0.00%, sys=36.07%, ctx=1340, 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=183889: Wed Jul 8 23:00:47 2026 read: IOPS=0, BW=521KiB/s (534kB/s)(2048KiB/3928msec) clat (msec): min=4, max=116, avg=60.57, stdev=79.37 lat (msec): min=4, max=116, avg=60.57, stdev=79.37 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 5], 50.00th=[ 5], 60.00th=[ 117], | 70.00th=[ 117], 80.00th=[ 117], 90.00th=[ 117], 95.00th=[ 117], | 99.00th=[ 117], 99.50th=[ 117], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 1738, max= 1996, per=38.87%, avg=1867.00, stdev=182.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2607KiB/s (2669kB/s)(10.0MiB/3928msec); 0 zone resets clat (msec): min=104, max=1407, avg=378.68, stdev=415.86 lat (msec): min=104, max=1407, avg=378.76, stdev=415.86 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 110], 40.00th=[ 116], 50.00th=[ 128], 60.00th=[ 190], | 70.00th=[ 418], 80.00th=[ 558], 90.00th=[ 651], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1738, max= 6144, per=53.25%, avg=3580.60, stdev=2308.95, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.49, samples=5 lat (msec) : 10=8.33%, 250=58.33%, 500=8.33%, 750=16.67%, 2000=8.33% cpu : usr=0.03%, sys=28.37%, ctx=112, 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=183890: Wed Jul 8 23:00:47 2026 read: IOPS=1, BW=1441KiB/s (1475kB/s)(6144KiB/4264msec) clat (msec): min=65, max=290, avg=172.40, stdev=76.15 lat (msec): min=65, max=290, avg=172.40, stdev=76.15 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 176], | 70.00th=[ 218], 80.00th=[ 218], 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= 1954, max= 4096, per=52.41%, avg=2517.25, stdev=1052.88, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1441KiB/s (1475kB/s)(6144KiB/4264msec); 0 zone resets clat (msec): min=167, max=1526, avg=527.07, stdev=525.70 lat (msec): min=167, max=1526, avg=527.13, stdev=525.70 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 292], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 1790, max= 2048, per=29.46%, avg=1981.00, stdev=108.91, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=26.18%, ctx=867, 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=183891: Wed Jul 8 23:00:47 2026 read: IOPS=1, BW=1517KiB/s (1553kB/s)(5120KiB/3375msec) clat (usec): min=555, max=214262, avg=134276.06, stdev=81131.31 lat (usec): min=556, max=214263, avg=134277.25, stdev=81131.18 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[137364], 40.00th=[137364], 50.00th=[139461], 60.00th=[139461], | 70.00th=[179307], 80.00th=[179307], 90.00th=[214959], 95.00th=[214959], | 99.00th=[214959], 99.50th=[214959], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 3908, max= 3992, per=82.24%, avg=3950.00, stdev=59.40, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2124KiB/s (2175kB/s)(7168KiB/3375msec); 0 zone resets clat (msec): min=85, max=1432, avg=379.72, stdev=467.85 lat (msec): min=85, max=1432, avg=379.81, stdev=467.85 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 190], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 220], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 279], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1768, max= 6144, per=58.60%, avg=3940.00, stdev=2188.18, samples=3 iops : min= 1, max= 6, avg= 3.33, stdev= 2.52, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=66.67%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=30.23%, ctx=225, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4803KiB/s (4918kB/s), 521KiB/s-2517KiB/s (534kB/s-2577kB/s), io=20.0MiB (20.0MB), run=2848-4264msec WRITE: bw=6724KiB/s (6886kB/s), 1441KiB/s-2607KiB/s (1475kB/s-2669kB/s), io=28.0MiB (29.4MB), run=2848-4264msec 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=183901: Wed Jul 8 23:00:55 2026 read: IOPS=1, BW=6178KiB/s (6326kB/s)(12.0MiB/1989msec) clat (msec): min=136, max=1065, avg=628.78, stdev=467.08 lat (msec): min=136, max=1065, avg=628.78, stdev=467.08 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8192, max= 8192, per=99.45%, 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%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=11.42%, ctx=60, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183902: Wed Jul 8 23:00:55 2026 read: IOPS=0, BW=2343KiB/s (2399kB/s)(4096KiB/1748msec) clat (nsec): min=172890k, max=172890k, avg=172890042.00, stdev= 0.00 lat (nsec): min=172891k, max=172891k, avg=172891030.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 174], 95.00th=[ 174], | 99.00th=[ 174], 99.50th=[ 174], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 7846, max= 7846, per=95.25%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4686KiB/s (4799kB/s)(8192KiB/1748msec); 0 zone resets clat (msec): min=471, max=1048, avg=759.89, stdev=408.24 lat (msec): min=471, max=1048, avg=760.17, stdev=408.39 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 1045], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8192, max= 8192, per=44.20%, 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%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.08%, ctx=71, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183903: Wed Jul 8 23:00:55 2026 write: IOPS=1, BW=6950KiB/s (7117kB/s)(12.0MiB/1768msec); 0 zone resets clat (msec): min=255, max=956, avg=569.64, stdev=356.29 lat (msec): min=256, max=959, avg=571.04, stdev=357.40 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8192, max= 8192, per=44.20%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=14.43%, ctx=55, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183904: Wed Jul 8 23:00:55 2026 write: IOPS=1, BW=7190KiB/s (7363kB/s)(12.0MiB/1709msec); 0 zone resets clat (msec): min=185, max=1055, avg=557.54, stdev=448.34 lat (msec): min=185, max=1055, avg=557.87, stdev=448.30 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 1053], 80.00th=[ 1053], 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= 8143, max= 8192, per=44.07%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.11%, ctx=80, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8237KiB/s (8435kB/s), 2343KiB/s-6178KiB/s (2399kB/s-6326kB/s), io=16.0MiB (16.8MB), run=1748-1989msec WRITE: bw=18.1MiB/s (18.0MB/s), 4686KiB/s-7190KiB/s (4799kB/s-7363kB/s), io=32.0MiB (33.6MB), run=1709-1768msec rand-rw: (groupid=0, jobs=1): err= 0: pid=183906: Wed Jul 8 23:00:55 2026 read: IOPS=2, BW=8840KiB/s (9052kB/s)(12.0MiB/1390msec) clat (msec): min=414, max=426, avg=421.64, stdev= 6.68 lat (msec): min=414, max=426, avg=421.64, stdev= 6.68 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 6177, max= 8126, per=78.61%, avg=7151.50, stdev=1378.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=38.73%, ctx=2144, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183907: Wed Jul 8 23:00:55 2026 read: IOPS=0, BW=2274KiB/s (2329kB/s)(4096KiB/1801msec) clat (nsec): min=492143k, max=492143k, avg=492142805.00, stdev= 0.00 lat (nsec): min=492145k, max=492145k, avg=492145205.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 6122, max= 6122, per=67.30%, avg=6122.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4549KiB/s (4658kB/s)(8192KiB/1801msec); 0 zone resets clat (msec): min=299, max=944, avg=621.68, stdev=456.16 lat (msec): min=299, max=944, avg=622.00, stdev=456.23 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 944], | 70.00th=[ 944], 80.00th=[ 944], 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= 8126, max= 8126, per=48.43%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.06%, sys=19.11%, ctx=593, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=183908: Wed Jul 8 23:00:55 2026 write: IOPS=1, BW=6292KiB/s (6443kB/s)(12.0MiB/1953msec); 0 zone resets clat (msec): min=73, max=1034, avg=635.18, stdev=501.00 lat (msec): min=73, max=1035, avg=635.49, stdev=501.11 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 73], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8126, max= 8126, per=48.43%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.05%, sys=10.40%, ctx=43, 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=183909: Wed Jul 8 23:00:55 2026 write: IOPS=1, BW=7288KiB/s (7463kB/s)(12.0MiB/1686msec); 0 zone resets clat (msec): min=277, max=816, avg=555.36, stdev=270.14 lat (msec): min=277, max=816, avg=555.70, stdev=270.20 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 6032, max= 8126, per=42.19%, avg=7079.00, stdev=1480.68, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=14.12%, ctx=63, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=9097KiB/s (9316kB/s), 2274KiB/s-8840KiB/s (2329kB/s-9052kB/s), io=16.0MiB (16.8MB), run=1390-1801msec WRITE: bw=16.4MiB/s (17.2MB/s), 4549KiB/s-7288KiB/s (4658kB/s-7463kB/s), io=32.0MiB (33.6MB), run=1686-1953msec