== sanity test 398b: DIO and buffer IO race ============== 11:39:20 (1787845160) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.22866 s, 9.6 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=145708: Thu Aug 27 11:41:35 2026 read: IOPS=12, BW=51.1KiB/s (52.3kB/s)(5992KiB/117280msec) clat (usec): min=34, max=695737, avg=38078.56, stdev=32845.07 lat (usec): min=35, max=695738, avg=38082.51, stdev=32847.70 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 184], 20.00th=[ 17171], | 30.00th=[ 22676], 40.00th=[ 27395], 50.00th=[ 32375], 60.00th=[ 38011], | 70.00th=[ 46400], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[127402], 99.50th=[168821], 99.90th=[233833], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 5, max= 111, per=24.79%, avg=50.58, stdev=20.79, samples=231 iops : min= 1, max= 27, avg=12.04, stdev= 5.21, samples=231 write: IOPS=13, BW=53.7KiB/s (54.0kB/s)(6296KiB/117280msec); 0 zone resets clat (usec): min=978, max=288366, avg=38007.27, stdev=36813.74 lat (usec): min=980, max=288369, avg=38016.73, stdev=36810.12 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1369], 10.00th=[ 2089], 20.00th=[ 4883], | 30.00th=[ 9765], 40.00th=[ 20055], 50.00th=[ 30016], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[158335], 99.50th=[196084], 99.90th=[250610], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 127, per=25.10%, avg=53.47, stdev=20.02, samples=230 iops : min= 1, max= 31, avg=12.76, stdev= 5.02, samples=230 lat (usec) : 50=0.42%, 100=3.94%, 250=0.52%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=4.82%, 4=4.33%, 10=6.93%, 20=11.26%, 50=39.23% lat (msec) : 100=23.70%, 250=4.43%, 500=0.07%, 750=0.03% cpu : usr=0.07%, sys=6.46%, ctx=6829, 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=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=145711: Thu Aug 27 11:41:35 2026 read: IOPS=12, BW=50.5KiB/s (51.7kB/s)(5940KiB/117611msec) clat (usec): min=33, max=232391, avg=37163.86, stdev=28031.46 lat (usec): min=33, max=232393, avg=37174.64, stdev=28047.47 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 153], 20.00th=[ 16581], | 30.00th=[ 21890], 40.00th=[ 26608], 50.00th=[ 31327], 60.00th=[ 38011], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 71828], 95.00th=[ 88605], | 99.00th=[127402], 99.50th=[158335], 99.90th=[202376], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 5, max= 111, per=24.52%, avg=50.02, stdev=20.79, samples=232 iops : min= 1, max= 27, avg=11.91, stdev= 5.25, samples=232 write: IOPS=13, BW=53.0KiB/s (55.3kB/s)(6348KiB/117611msec); 0 zone resets clat (usec): min=900, max=691730, avg=39040.59, stdev=44081.66 lat (usec): min=902, max=691731, avg=39043.90, stdev=44081.68 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1434], 10.00th=[ 2212], 20.00th=[ 4293], | 30.00th=[ 8225], 40.00th=[ 16581], 50.00th=[ 27395], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 65274], 90.00th=[ 92799], 95.00th=[116917], | 99.00th=[187696], 99.50th=[225444], 99.90th=[308282], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 7, max= 142, per=25.16%, avg=53.59, stdev=24.07, samples=231 iops : min= 1, max= 35, avg=12.81, stdev= 6.02, samples=231 lat (usec) : 50=0.42%, 100=4.00%, 250=0.62%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=4.69%, 4=4.98%, 10=7.62%, 20=12.43%, 50=37.14% lat (msec) : 100=21.91%, 250=5.73%, 500=0.16%, 750=0.03% cpu : usr=0.08%, sys=6.41%, ctx=6656, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145712: Thu Aug 27 11:41:35 2026 read: IOPS=12, BW=51.5KiB/s (52.8kB/s)(6028KiB/117002msec) clat (usec): min=38, max=528326, avg=36981.47, stdev=30993.92 lat (usec): min=38, max=528327, avg=36983.19, stdev=30994.00 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 163], 20.00th=[ 16581], | 30.00th=[ 21627], 40.00th=[ 26346], 50.00th=[ 31589], 60.00th=[ 36963], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[121111], 99.50th=[185598], 99.90th=[299893], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 126, per=25.34%, avg=51.69, stdev=22.85, samples=228 iops : min= 1, max= 31, avg=12.32, stdev= 5.75, samples=228 write: IOPS=13, BW=53.5KiB/s (54.8kB/s)(6260KiB/117002msec); 0 zone resets clat (usec): min=983, max=950805, avg=38885.18, stdev=45963.89 lat (usec): min=984, max=950806, avg=38891.43, stdev=45965.66 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 2089], 20.00th=[ 4113], | 30.00th=[ 7963], 40.00th=[ 17957], 50.00th=[ 28181], 60.00th=[ 37487], | 70.00th=[ 50070], 80.00th=[ 65799], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[170918], 99.50th=[206570], 99.90th=[404751], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 103, per=25.00%, avg=53.26, stdev=19.73, samples=230 iops : min= 1, max= 25, avg=12.71, stdev= 4.95, samples=230 lat (usec) : 50=0.49%, 100=3.71%, 250=0.91%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=4.95%, 4=5.14%, 10=7.10%, 20=12.01%, 50=37.70% lat (msec) : 100=22.69%, 250=4.92%, 500=0.10%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=6.49%, ctx=6896, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145713: Thu Aug 27 11:41:35 2026 read: IOPS=12, BW=51.7KiB/s (52.9kB/s)(6052KiB/117125msec) clat (usec): min=32, max=513290, avg=37773.36, stdev=32603.59 lat (usec): min=32, max=513290, avg=37775.86, stdev=32603.51 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 135], 20.00th=[ 16188], | 30.00th=[ 21627], 40.00th=[ 26084], 50.00th=[ 31589], 60.00th=[ 38011], | 70.00th=[ 45876], 80.00th=[ 56886], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[133694], 99.50th=[170918], 99.90th=[346031], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 120, per=25.57%, avg=52.16, stdev=22.09, samples=227 iops : min= 1, max= 30, avg=12.44, stdev= 5.55, samples=227 write: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6236KiB/117125msec); 0 zone resets clat (usec): min=926, max=884915, avg=38159.65, stdev=45335.96 lat (usec): min=929, max=884917, avg=38170.93, stdev=45332.60 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1483], 10.00th=[ 2147], 20.00th=[ 4293], | 30.00th=[ 8356], 40.00th=[ 17171], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 64226], 90.00th=[ 89654], 95.00th=[109577], | 99.00th=[168821], 99.50th=[202376], 99.90th=[530580], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 119, per=24.88%, avg=53.00, stdev=21.79, samples=230 iops : min= 1, max= 29, avg=12.64, stdev= 5.47, samples=230 lat (usec) : 50=0.36%, 100=4.26%, 250=0.72%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=4.69%, 4=5.24%, 10=7.36%, 20=11.62%, 50=38.22% lat (msec) : 100=22.30%, 250=4.75%, 500=0.10%, 750=0.07%, 1000=0.03% cpu : usr=0.09%, sys=6.29%, ctx=6792, majf=0, minf=19 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=204KiB/s (209kB/s), 50.5KiB/s-51.7KiB/s (51.7kB/s-52.9kB/s), io=23.4MiB (24.6MB), run=117002-117611msec WRITE: bw=214KiB/s (219kB/s), 53.2KiB/s-53.0KiB/s (54.5kB/s-55.3kB/s), io=24.6MiB (25.7MB), run=117002-117611msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145706: Thu Aug 27 11:44:08 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(5992KiB/270770msec) clat (msec): min=6, max=718, avg=37.73, stdev=36.44 lat (msec): min=6, max=718, avg=37.73, stdev=36.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 54], 90.00th=[ 73], 95.00th=[ 94], | 99.00th=[ 138], 99.50th=[ 163], 99.90th=[ 567], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 87, per=27.67%, avg=24.35, stdev=15.76, samples=474 iops : min= 1, max= 21, avg= 5.44, stdev= 3.96, samples=474 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6296KiB/270770msec); 0 zone resets clat (msec): min=32, max=454, avg=135.88, stdev=63.27 lat (msec): min=32, max=454, avg=135.89, stdev=63.27 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 355], 99.50th=[ 393], 99.90th=[ 443], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 56, per=24.74%, avg=22.76, stdev=10.17, samples=531 iops : min= 1, max= 14, avg= 5.04, stdev= 2.60, samples=531 lat (msec) : 10=2.54%, 20=12.73%, 50=22.79%, 100=26.14%, 250=32.71% lat (msec) : 500=3.03%, 750=0.07% cpu : usr=0.04%, sys=1.31%, ctx=5457, 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=145707: Thu Aug 27 11:44:08 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(5940KiB/270985msec) clat (msec): min=5, max=793, avg=37.85, stdev=39.93 lat (msec): min=5, max=793, avg=37.86, stdev=39.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 73], 95.00th=[ 93], | 99.00th=[ 167], 99.50th=[ 215], 99.90th=[ 567], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 80, per=28.04%, avg=24.67, stdev=15.97, samples=465 iops : min= 1, max= 20, avg= 5.52, stdev= 4.04, samples=465 write: IOPS=5, BW=23.4KiB/s (23.0kB/s)(6348KiB/270985msec); 0 zone resets clat (msec): min=36, max=635, avg=135.09, stdev=64.06 lat (msec): min=36, max=635, avg=135.09, stdev=64.06 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 218], 95.00th=[ 255], | 99.00th=[ 334], 99.50th=[ 363], 99.90th=[ 600], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 55, per=24.98%, avg=22.98, stdev=10.42, samples=532 iops : min= 1, max= 13, avg= 5.09, stdev= 2.66, samples=532 lat (msec) : 10=2.44%, 20=13.38%, 50=22.62%, 100=25.68%, 250=32.65% lat (msec) : 500=3.09%, 750=0.10%, 1000=0.03% cpu : usr=0.05%, sys=1.30%, ctx=5544, 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=145709: Thu Aug 27 11:44:08 2026 read: IOPS=5, BW=22.3KiB/s (22.9kB/s)(6028KiB/269888msec) clat (msec): min=5, max=315, avg=37.41, stdev=30.01 lat (msec): min=5, max=315, avg=37.41, stdev=30.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 53], 90.00th=[ 73], 95.00th=[ 92], | 99.00th=[ 142], 99.50th=[ 197], 99.90th=[ 262], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7, max= 96, per=27.60%, avg=24.29, stdev=16.39, samples=478 iops : min= 1, max= 24, avg= 5.42, stdev= 4.13, samples=478 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6260KiB/269888msec); 0 zone resets clat (msec): min=35, max=918, avg=136.18, stdev=69.98 lat (msec): min=35, max=918, avg=136.19, stdev=69.99 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 180], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 363], 99.50th=[ 422], 99.90th=[ 634], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 55, per=24.65%, avg=22.67, stdev=10.47, samples=530 iops : min= 1, max= 13, avg= 5.02, stdev= 2.67, samples=530 lat (msec) : 10=2.21%, 20=12.63%, 50=24.35%, 100=25.62%, 250=31.84% lat (msec) : 500=3.22%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.31%, ctx=5454, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145710: Thu Aug 27 11:44:08 2026 read: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6052KiB/268227msec) clat (msec): min=5, max=415, avg=37.84, stdev=32.87 lat (msec): min=5, max=415, avg=37.84, stdev=32.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 74], 95.00th=[ 93], | 99.00th=[ 176], 99.50th=[ 209], 99.90th=[ 342], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 103, per=28.29%, avg=24.90, stdev=15.86, samples=469 iops : min= 1, max= 25, avg= 5.58, stdev= 4.01, samples=469 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6236KiB/268227msec); 0 zone resets clat (msec): min=37, max=901, avg=135.06, stdev=64.72 lat (msec): min=37, max=901, avg=135.06, stdev=64.72 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 220], 95.00th=[ 257], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 468], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 56, per=24.80%, avg=22.82, stdev=10.29, samples=525 iops : min= 1, max= 14, avg= 5.06, stdev= 2.63, samples=525 lat (msec) : 10=2.51%, 20=12.70%, 50=23.27%, 100=26.14%, 250=32.26% lat (msec) : 500=3.09%, 1000=0.03% cpu : usr=0.05%, sys=1.31%, ctx=5455, 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=88.6KiB/s (90.7kB/s), 21.9KiB/s-22.6KiB/s (22.4kB/s-23.1kB/s), io=23.4MiB (24.6MB), run=268227-270985msec WRITE: bw=92.8KiB/s (94.0kB/s), 23.2KiB/s-23.4KiB/s (23.8kB/s-23.0kB/s), io=24.6MiB (25.7MB), run=268227-270985msec 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=145767: Thu Aug 27 11:44:40 2026 read: IOPS=17, BW=282KiB/s (288kB/s)(5920KiB/21021msec) clat (usec): min=36, max=113002, avg=29864.08, stdev=23115.46 lat (usec): min=37, max=113004, avg=29866.89, stdev=23117.69 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 133], | 30.00th=[ 19268], 40.00th=[ 24249], 50.00th=[ 28181], 60.00th=[ 31851], | 70.00th=[ 39584], 80.00th=[ 47973], 90.00th=[ 60031], 95.00th=[ 69731], | 99.00th=[105382], 99.50th=[107480], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 126, max= 446, per=26.20%, avg=276.20, stdev=91.34, samples=41 iops : min= 7, max= 27, avg=16.49, stdev= 5.71, samples=41 write: IOPS=18, BW=303KiB/s (310kB/s)(6368KiB/21021msec); 0 zone resets clat (usec): min=1471, max=186985, avg=24670.62, stdev=26234.28 lat (usec): min=1474, max=186987, avg=24673.82, stdev=26233.65 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2089], 10.00th=[ 2704], 20.00th=[ 4228], | 30.00th=[ 5997], 40.00th=[ 8586], 50.00th=[ 14222], 60.00th=[ 22938], | 70.00th=[ 32637], 80.00th=[ 42730], 90.00th=[ 60031], 95.00th=[ 76022], | 99.00th=[121111], 99.50th=[135267], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 63, max= 541, per=27.14%, avg=300.98, stdev=104.16, samples=41 iops : min= 3, max= 33, avg=18.07, stdev= 6.55, samples=41 lat (usec) : 50=0.78%, 100=7.81%, 250=1.43%, 500=0.39%, 750=0.13% lat (msec) : 2=2.08%, 4=7.55%, 10=12.89%, 20=10.55%, 50=40.36% lat (msec) : 100=14.58%, 250=1.43% cpu : usr=0.12%, sys=8.69%, ctx=1486, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145768: Thu Aug 27 11:44:40 2026 read: IOPS=15, BW=255KiB/s (261kB/s)(5744KiB/22508msec) clat (usec): min=44, max=236845, avg=32854.31, stdev=28005.07 lat (usec): min=45, max=236846, avg=32855.79, stdev=28005.00 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 58], 10.00th=[ 69], 20.00th=[ 13960], | 30.00th=[ 21365], 40.00th=[ 25822], 50.00th=[ 29754], 60.00th=[ 35390], | 70.00th=[ 41157], 80.00th=[ 47973], 90.00th=[ 58459], 95.00th=[ 67634], | 99.00th=[158335], 99.50th=[210764], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 59, max= 478, per=24.10%, avg=254.05, stdev=94.69, samples=44 iops : min= 3, max= 29, avg=15.09, stdev= 5.94, samples=44 write: IOPS=18, BW=291KiB/s (298kB/s)(6544KiB/22508msec); 0 zone resets clat (usec): min=1367, max=156129, avg=26023.85, stdev=26427.87 lat (usec): min=1369, max=156131, avg=26027.09, stdev=26427.59 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1975], 10.00th=[ 2835], 20.00th=[ 4424], | 30.00th=[ 6587], 40.00th=[ 10028], 50.00th=[ 16057], 60.00th=[ 23200], | 70.00th=[ 33817], 80.00th=[ 46924], 90.00th=[ 66323], 95.00th=[ 77071], | 99.00th=[101188], 99.50th=[113771], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 95, max= 574, per=26.12%, avg=289.66, stdev=113.00, samples=44 iops : min= 5, max= 35, avg=17.34, stdev= 7.10, samples=44 lat (usec) : 50=0.26%, 100=6.25%, 250=1.17%, 500=0.26%, 750=0.26% lat (msec) : 2=2.86%, 4=6.90%, 10=11.85%, 20=12.63%, 50=40.36% lat (msec) : 100=15.63%, 250=1.56% cpu : usr=0.11%, sys=8.38%, ctx=1600, 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=145769: Thu Aug 27 11:44:40 2026 read: IOPS=17, BW=275KiB/s (282kB/s)(6256KiB/22716msec) clat (usec): min=34, max=264479, avg=32175.43, stdev=27928.65 lat (usec): min=35, max=264480, avg=32183.05, stdev=27926.12 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 60], 10.00th=[ 78], 20.00th=[ 8225], | 30.00th=[ 19792], 40.00th=[ 25297], 50.00th=[ 30016], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 49021], 90.00th=[ 59507], 95.00th=[ 76022], | 99.00th=[152044], 99.50th=[179307], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 96, max= 605, per=26.07%, avg=274.77, stdev=102.53, samples=44 iops : min= 6, max= 37, avg=16.41, stdev= 6.36, samples=44 write: IOPS=16, BW=266KiB/s (272kB/s)(6032KiB/22716msec); 0 zone resets clat (usec): min=1386, max=148625, avg=26487.77, stdev=25764.83 lat (usec): min=1387, max=148628, avg=26490.75, stdev=25765.00 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2008], 10.00th=[ 2540], 20.00th=[ 4686], | 30.00th=[ 6980], 40.00th=[ 10945], 50.00th=[ 16909], 60.00th=[ 27919], | 70.00th=[ 35390], 80.00th=[ 45351], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[107480], 99.50th=[116917], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 32, max= 510, per=23.47%, avg=260.27, stdev=107.00, samples=44 iops : min= 2, max= 31, avg=15.50, stdev= 6.68, samples=44 lat (usec) : 50=0.39%, 100=6.25%, 250=2.47%, 500=0.52%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.60%, 4=5.99%, 10=11.07%, 20=12.11%, 50=40.62% lat (msec) : 100=16.41%, 250=1.17%, 500=0.13% cpu : usr=0.09%, sys=8.00%, ctx=1640, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145770: Thu Aug 27 11:44:40 2026 read: IOPS=17, BW=279KiB/s (286kB/s)(6032KiB/21595msec) clat (usec): min=39, max=161203, avg=31768.55, stdev=25557.81 lat (usec): min=39, max=161205, avg=31777.29, stdev=25557.91 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 73], 20.00th=[ 3064], | 30.00th=[ 19792], 40.00th=[ 23987], 50.00th=[ 29754], 60.00th=[ 34866], | 70.00th=[ 40633], 80.00th=[ 47973], 90.00th=[ 60556], 95.00th=[ 67634], | 99.00th=[139461], 99.50th=[149947], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 29, max= 505, per=26.39%, avg=278.17, stdev=94.60, samples=42 iops : min= 1, max= 31, avg=16.62, stdev= 5.99, samples=42 write: IOPS=18, BW=290KiB/s (297kB/s)(6256KiB/21595msec); 0 zone resets clat (usec): min=1383, max=167151, avg=23788.41, stdev=24700.44 lat (usec): min=1385, max=167152, avg=23814.08, stdev=24685.58 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 2073], 10.00th=[ 2769], 20.00th=[ 4228], | 30.00th=[ 5800], 40.00th=[ 8979], 50.00th=[ 15533], 60.00th=[ 22152], | 70.00th=[ 29492], 80.00th=[ 39584], 90.00th=[ 60556], 95.00th=[ 76022], | 99.00th=[106431], 99.50th=[116917], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 119, max= 542, per=26.10%, avg=289.40, stdev=106.36, samples=42 iops : min= 7, max= 33, avg=17.33, stdev= 6.62, samples=42 lat (usec) : 50=1.30%, 100=5.73%, 250=2.08%, 500=0.26%, 1000=0.13% lat (msec) : 2=2.34%, 4=7.29%, 10=11.98%, 20=12.50%, 50=40.10% lat (msec) : 100=14.71%, 250=1.56% cpu : usr=0.10%, sys=8.85%, ctx=1525, 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=1054KiB/s (1080kB/s), 255KiB/s-282KiB/s (261kB/s-288kB/s), io=23.4MiB (24.5MB), run=21021-22716msec WRITE: bw=1109KiB/s (1136kB/s), 266KiB/s-303KiB/s (272kB/s-310kB/s), io=24.6MiB (25.8MB), run=21021-22716msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145771: Thu Aug 27 11:45:15 2026 read: IOPS=6, BW=105KiB/s (107kB/s)(5920KiB/56505msec) clat (msec): min=6, max=192, avg=29.74, stdev=26.93 lat (msec): min=6, max=192, avg=29.75, stdev=26.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 39], 90.00th=[ 62], 95.00th=[ 92], | 99.00th=[ 153], 99.50th=[ 161], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 30, max= 413, per=26.84%, avg=112.17, stdev=71.18, samples=104 iops : min= 1, max= 25, avg= 6.32, stdev= 4.54, samples=104 write: IOPS=7, BW=113KiB/s (115kB/s)(6368KiB/56505msec); 0 zone resets clat (msec): min=46, max=399, avg=113.62, stdev=50.80 lat (msec): min=46, max=399, avg=113.62, stdev=50.80 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 84], 40.00th=[ 92], 50.00th=[ 100], 60.00th=[ 111], | 70.00th=[ 127], 80.00th=[ 146], 90.00th=[ 174], 95.00th=[ 207], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 31, max= 224, per=25.72%, avg=113.18, stdev=44.11, samples=111 iops : min= 1, max= 14, avg= 6.36, stdev= 2.83, samples=111 lat (msec) : 10=2.47%, 20=21.35%, 50=18.10%, 100=30.08%, 250=26.56% lat (msec) : 500=1.43% cpu : usr=0.05%, sys=1.65%, ctx=1439, 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=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=145772: Thu Aug 27 11:45:15 2026 read: IOPS=6, BW=100KiB/s (103kB/s)(5744KiB/57210msec) clat (msec): min=5, max=200, avg=31.94, stdev=30.57 lat (msec): min=5, max=200, avg=31.94, stdev=30.57 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 44], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 30, max= 384, per=26.41%, avg=110.40, stdev=70.56, samples=102 iops : min= 1, max= 24, avg= 6.20, stdev= 4.53, samples=102 write: IOPS=7, BW=114KiB/s (117kB/s)(6544KiB/57210msec); 0 zone resets clat (msec): min=36, max=359, avg=110.99, stdev=48.66 lat (msec): min=36, max=359, avg=111.00, stdev=48.66 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 71], | 30.00th=[ 82], 40.00th=[ 90], 50.00th=[ 102], 60.00th=[ 112], | 70.00th=[ 128], 80.00th=[ 146], 90.00th=[ 174], 95.00th=[ 190], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 30, max= 224, per=26.00%, avg=114.41, stdev=47.09, samples=112 iops : min= 1, max= 14, avg= 6.44, stdev= 3.03, samples=112 lat (msec) : 10=2.21%, 20=19.92%, 50=18.49%, 100=30.34%, 250=28.13% lat (msec) : 500=0.91% cpu : usr=0.05%, sys=1.56%, ctx=1342, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145773: Thu Aug 27 11:45:15 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(6256KiB/56506msec) clat (msec): min=8, max=204, avg=28.02, stdev=22.89 lat (msec): min=8, max=204, avg=28.03, stdev=22.88 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 58], 95.00th=[ 79], | 99.00th=[ 121], 99.50th=[ 126], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 31, max= 448, per=28.27%, avg=118.15, stdev=80.21, samples=105 iops : min= 1, max= 28, avg= 6.68, stdev= 5.09, samples=105 write: IOPS=6, BW=107KiB/s (109kB/s)(6032KiB/56506msec); 0 zone resets clat (msec): min=38, max=330, avg=120.52, stdev=51.60 lat (msec): min=38, max=330, avg=120.53, stdev=51.60 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 120], | 70.00th=[ 138], 80.00th=[ 155], 90.00th=[ 188], 95.00th=[ 222], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 224, per=24.12%, avg=106.14, stdev=41.35, samples=112 iops : min= 1, max= 14, avg= 5.92, stdev= 2.65, samples=112 lat (msec) : 10=2.47%, 20=22.92%, 50=20.31%, 100=25.26%, 250=27.47% lat (msec) : 500=1.56% cpu : usr=0.05%, sys=1.55%, ctx=1409, 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=145774: Thu Aug 27 11:45:15 2026 read: IOPS=6, BW=106KiB/s (108kB/s)(6032KiB/56960msec) clat (msec): min=6, max=180, avg=29.92, stdev=27.03 lat (msec): min=6, max=180, avg=29.92, stdev=27.03 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 38], 90.00th=[ 59], 95.00th=[ 99], | 99.00th=[ 138], 99.50th=[ 180], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 31, max= 383, per=26.69%, avg=111.57, stdev=72.96, samples=106 iops : min= 1, max= 23, avg= 6.27, stdev= 4.62, samples=106 write: IOPS=6, BW=110KiB/s (112kB/s)(6256KiB/56960msec); 0 zone resets clat (msec): min=45, max=327, avg=116.00, stdev=48.59 lat (msec): min=45, max=327, avg=116.01, stdev=48.59 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 78], | 30.00th=[ 85], 40.00th=[ 95], 50.00th=[ 103], 60.00th=[ 116], | 70.00th=[ 132], 80.00th=[ 150], 90.00th=[ 178], 95.00th=[ 207], | 99.00th=[ 284], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 192, per=24.88%, avg=109.47, stdev=42.97, samples=113 iops : min= 1, max= 12, avg= 6.12, stdev= 2.77, samples=113 lat (msec) : 10=1.95%, 20=22.14%, 50=18.88%, 100=28.26%, 250=27.60% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.54%, ctx=1337, 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=419KiB/s (429kB/s), 100KiB/s-111KiB/s (103kB/s-113kB/s), io=23.4MiB (24.5MB), run=56505-57210msec WRITE: bw=440KiB/s (451kB/s), 107KiB/s-114KiB/s (109kB/s-117kB/s), io=24.6MiB (25.8MB), run=56505-57210msec 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=145788: Thu Aug 27 11:45:29 2026 read: IOPS=1, BW=1280KiB/s (1310kB/s)(7168KiB/5601msec) clat (msec): min=156, max=2321, avg=549.15, stdev=786.53 lat (msec): min=156, max=2321, avg=549.15, stdev=786.53 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 241], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 397], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2031, max= 4079, per=100.00%, avg=3039.00, stdev=1159.70, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=914KiB/s (936kB/s)(5120KiB/5601msec); 0 zone resets clat (msec): min=227, max=558, avg=347.16, stdev=128.90 lat (msec): min=227, max=558, avg=347.24, stdev=128.89 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2023, max= 2043, per=51.80%, avg=2034.00, stdev= 8.87, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.07%, sys=10.64%, ctx=398, 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=145789: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=281KiB/s (287kB/s)(2048KiB/7300msec) clat (msec): min=140, max=186, avg=163.64, stdev=32.49 lat (msec): min=140, max=186, avg=163.64, stdev=32.48 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 1790, max= 2039, per=68.25%, avg=1914.50, stdev=176.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1403KiB/s (1436kB/s)(10.0MiB/7300msec); 0 zone resets clat (msec): min=186, max=2434, avg=682.31, stdev=691.14 lat (msec): min=186, max=2437, avg=682.60, stdev=691.75 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 230], | 30.00th=[ 271], 40.00th=[ 275], 50.00th=[ 338], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 693], 90.00th=[ 1234], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 2003, max= 4063, per=66.03%, avg=2593.14, stdev=967.17, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=33.33%, 500=25.00%, 750=25.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.12%, ctx=181, 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=145790: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=952KiB/s (974kB/s)(6144KiB/6457msec) clat (usec): min=438, max=531953, avg=226966.18, stdev=209968.88 lat (usec): min=439, max=531953, avg=226967.46, stdev=209968.54 clat percentiles (usec): | 1.00th=[ 441], 5.00th=[ 441], 10.00th=[ 441], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[221250], 50.00th=[221250], 60.00th=[223347], | 70.00th=[383779], 80.00th=[383779], 90.00th=[530580], 95.00th=[530580], | 99.00th=[530580], 99.50th=[530580], 99.90th=[530580], 99.95th=[530580], | 99.99th=[530580] bw ( KiB/s): min= 2023, max= 4063, per=90.70%, avg=2544.25, stdev=1012.56, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=952KiB/s (974kB/s)(6144KiB/6457msec); 0 zone resets clat (msec): min=161, max=2620, avg=795.79, stdev=907.94 lat (msec): min=161, max=2620, avg=795.85, stdev=907.94 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 542], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 2023, max= 2048, per=51.91%, avg=2038.60, stdev=10.41, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=25.00%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=8.21%, ctx=146, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145791: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=825KiB/s (844kB/s)(5120KiB/6209msec) clat (usec): min=315, max=422396, avg=135725.62, stdev=194501.13 lat (usec): min=315, max=422397, avg=135726.65, stdev=194501.24 clat percentiles (usec): | 1.00th=[ 314], 5.00th=[ 314], 10.00th=[ 314], 20.00th=[ 314], | 30.00th=[ 449], 40.00th=[ 449], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[254804], 80.00th=[254804], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1154KiB/s (1182kB/s)(7168KiB/6209msec); 0 zone resets clat (msec): min=263, max=2338, avg=760.35, stdev=724.42 lat (msec): min=263, max=2338, avg=760.41, stdev=724.43 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 284], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 510], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 776], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 2023, max= 2048, per=51.88%, avg=2037.33, stdev=10.44, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (usec) : 500=25.00% lat (msec) : 500=41.67%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=7.93%, ctx=100, 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=2805KiB/s (2873kB/s), 281KiB/s-1280KiB/s (287kB/s-1310kB/s), io=20.0MiB (20.0MB), run=5601-7300msec WRITE: bw=3928KiB/s (4022kB/s), 914KiB/s-1403KiB/s (936kB/s-1436kB/s), io=28.0MiB (29.4MB), run=5601-7300msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145792: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=990KiB/s (1014kB/s)(7168KiB/7240msec) clat (msec): min=101, max=2076, avg=722.67, stdev=834.76 lat (msec): min=101, max=2076, avg=722.68, stdev=834.76 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 142], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 1703], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 2000, max= 3799, per=88.46%, avg=2385.80, stdev=790.23, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=707KiB/s (724kB/s)(5120KiB/7240msec); 0 zone resets clat (msec): min=216, max=505, avg=381.31, stdev=111.30 lat (msec): min=216, max=506, avg=381.38, stdev=111.30 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 1921, max= 2043, per=53.27%, avg=2011.50, stdev=60.36, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=2.29%, ctx=88, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145793: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=270KiB/s (276kB/s)(2048KiB/7592msec) clat (msec): min=65, max=451, avg=258.56, stdev=272.49 lat (msec): min=65, max=451, avg=258.57, stdev=272.49 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 66], | 30.00th=[ 66], 40.00th=[ 66], 50.00th=[ 66], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1372, max= 2000, per=62.51%, avg=1686.00, stdev=444.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1349KiB/s (1381kB/s)(10.0MiB/7592msec); 0 zone resets clat (msec): min=143, max=2875, avg=683.19, stdev=803.28 lat (msec): min=143, max=2875, avg=683.27, stdev=803.28 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 207], | 30.00th=[ 300], 40.00th=[ 309], 50.00th=[ 376], 60.00th=[ 506], | 70.00th=[ 584], 80.00th=[ 617], 90.00th=[ 919], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 2000, max= 3799, per=60.49%, avg=2284.29, stdev=668.12, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 100=8.33%, 250=16.67%, 500=33.33%, 750=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=3.32%, ctx=99, 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=145794: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=843KiB/s (863kB/s)(6144KiB/7291msec) clat (msec): min=119, max=978, avg=313.96, stdev=335.28 lat (msec): min=119, max=978, avg=313.96, stdev=335.28 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 174], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1906, max= 4079, per=92.98%, avg=2507.75, stdev=1049.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=843KiB/s (863kB/s)(6144KiB/7291msec); 0 zone resets clat (msec): min=235, max=2413, avg=860.29, stdev=820.26 lat (msec): min=235, max=2413, avg=860.37, stdev=820.26 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 844], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 2019, max= 2048, per=53.98%, avg=2038.40, stdev=11.30, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 1000=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=2.10%, ctx=78, 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=145795: Thu Aug 27 11:45:29 2026 read: IOPS=0, BW=882KiB/s (903kB/s)(5120KiB/5807msec) clat (msec): min=151, max=387, avg=211.67, stdev=99.36 lat (msec): min=151, max=387, avg=211.67, stdev=99.36 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 1914, max= 3813, per=95.54%, avg=2576.67, stdev=1071.62, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1234KiB/s (1264kB/s)(7168KiB/5807msec); 0 zone resets clat (msec): min=151, max=2280, avg=658.52, stdev=746.66 lat (msec): min=151, max=2280, avg=658.67, stdev=746.62 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 199], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 351], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 684], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 1906, max= 2043, per=53.16%, avg=2007.50, stdev=52.63, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=3.22%, ctx=80, 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=2698KiB/s (2762kB/s), 270KiB/s-990KiB/s (276kB/s-1014kB/s), io=20.0MiB (20.0MB), run=5807-7592msec WRITE: bw=3777KiB/s (3867kB/s), 707KiB/s-1349KiB/s (724kB/s-1381kB/s), io=28.0MiB (29.4MB), run=5807-7592msec 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=145802: Thu Aug 27 11:45:41 2026 read: IOPS=1, BW=6159KiB/s (6307kB/s)(12.0MiB/1995msec) clat (msec): min=303, max=1001, avg=619.56, stdev=353.88 lat (msec): min=303, max=1001, avg=619.56, stdev=353.88 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7772, max= 8143, per=100.00%, avg=7957.50, stdev=262.34, 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=0.00%, sys=6.62%, ctx=67, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145803: Thu Aug 27 11:45:41 2026 read: IOPS=0, BW=1615KiB/s (1653kB/s)(4096KiB/2537msec) clat (nsec): min=561264k, max=561264k, avg=561263594.00, stdev= 0.00 lat (nsec): min=561266k, max=561266k, avg=561265970.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 5557, max= 5557, per=86.05%, avg=5557.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3229KiB/s (3307kB/s)(8192KiB/2537msec); 0 zone resets clat (msec): min=923, max=959, avg=941.48, stdev=25.69 lat (msec): min=923, max=959, avg=941.82, stdev=25.62 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 961], | 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= 8175, max= 8175, per=84.71%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.05%, ctx=69, 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=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=145804: Thu Aug 27 11:45:41 2026 write: IOPS=0, BW=3619KiB/s (3706kB/s)(12.0MiB/3395msec); 0 zone resets clat (msec): min=597, max=1732, avg=1109.90, stdev=575.40 lat (msec): min=597, max=1734, avg=1110.63, stdev=576.34 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8047, max= 8159, per=83.96%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.92%, ctx=50, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145805: Thu Aug 27 11:45:41 2026 write: IOPS=1, BW=4114KiB/s (4213kB/s)(12.0MiB/2987msec); 0 zone resets clat (msec): min=416, max=1636, avg=972.08, stdev=617.31 lat (msec): min=416, max=1636, avg=972.58, stdev=617.25 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 5744, max= 8175, per=72.11%, avg=6959.50, stdev=1718.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.32%, ctx=45, 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=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=6458KiB/s (6613kB/s), 1615KiB/s-6159KiB/s (1653kB/s-6307kB/s), io=16.0MiB (16.8MB), run=1995-2537msec WRITE: bw=9652KiB/s (9883kB/s), 3229KiB/s-4114KiB/s (3307kB/s-4213kB/s), io=32.0MiB (33.6MB), run=2537-3395msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145807: Thu Aug 27 11:45:42 2026 read: IOPS=1, BW=5840KiB/s (5980kB/s)(12.0MiB/2104msec) clat (msec): min=562, max=797, avg=700.13, stdev=122.31 lat (msec): min=562, max=797, avg=700.13, stdev=122.31 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 802], 80.00th=[ 802], 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= 6140, max= 8126, per=100.00%, avg=7133.00, stdev=1404.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=18.12%, ctx=355, 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=145808: Thu Aug 27 11:45:42 2026 read: IOPS=0, BW=1379KiB/s (1412kB/s)(4096KiB/2971msec) clat (nsec): min=728487k, max=728487k, avg=728486658.00, stdev= 0.00 lat (nsec): min=728488k, max=728488k, avg=728488032.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2757KiB/s (2823kB/s)(8192KiB/2971msec); 0 zone resets clat (msec): min=399, max=1841, avg=1120.27, stdev=1019.93 lat (msec): min=399, max=1841, avg=1120.58, stdev=1019.94 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 1838], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8094, max= 8094, per=75.15%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.16%, ctx=126, 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=145809: Thu Aug 27 11:45:42 2026 write: IOPS=0, BW=4039KiB/s (4136kB/s)(12.0MiB/3042msec); 0 zone resets clat (msec): min=385, max=2123, avg=1011.68, stdev=965.78 lat (msec): min=385, max=2124, avg=1012.10, stdev=965.70 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 2123], 80.00th=[ 2123], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 8126, max= 8143, per=75.52%, avg=8134.50, stdev=12.02, 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=0.00%, sys=3.49%, ctx=40, 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=145810: Thu Aug 27 11:45:42 2026 write: IOPS=1, BW=4310KiB/s (4414kB/s)(12.0MiB/2851msec); 0 zone resets clat (msec): min=731, max=1262, avg=949.49, stdev=278.10 lat (msec): min=731, max=1262, avg=949.83, stdev=278.12 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8015, max= 8126, per=74.93%, avg=8070.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.14%, ctx=47, 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=5515KiB/s (5647kB/s), 1379KiB/s-5840KiB/s (1412kB/s-5980kB/s), io=16.0MiB (16.8MB), run=2104-2971msec WRITE: bw=10.5MiB/s (11.0MB/s), 2757KiB/s-4310KiB/s (2823kB/s-4414kB/s), io=32.0MiB (33.6MB), run=2851-3042msec