== sanity test 398b: DIO and buffer IO race ============== 18:19:54 (1787869194) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 8.46787 s, 5.9 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178685: Thu Aug 27 18:22:28 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5992KiB/131389msec) clat (usec): min=39, max=1132.2k, avg=47572.53, stdev=41376.56 lat (usec): min=40, max=1132.2k, avg=47574.28, stdev=41376.33 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 145], 10.00th=[ 15926], | 20.00th=[ 23462], 30.00th=[ 29492], 40.00th=[ 35390], | 50.00th=[ 42206], 60.00th=[ 48497], 70.00th=[ 56886], | 80.00th=[ 68682], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[ 152044], 99.50th=[ 177210], 99.90th=[ 283116], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 95, per=25.06%, avg=45.11, stdev=19.08, samples=258 iops : min= 1, max= 23, avg=10.63, stdev= 4.80, samples=258 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6296KiB/131389msec); 0 zone resets clat (usec): min=1013, max=235745, avg=37984.83, stdev=40728.86 lat (usec): min=1015, max=235747, avg=37988.58, stdev=40730.94 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1237], 10.00th=[ 1631], 20.00th=[ 3589], | 30.00th=[ 6980], 40.00th=[ 16319], 50.00th=[ 25560], 60.00th=[ 35390], | 70.00th=[ 49021], 80.00th=[ 66847], 90.00th=[ 93848], 95.00th=[120062], | 99.00th=[179307], 99.50th=[202376], 99.90th=[231736], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 7, max= 127, per=25.22%, avg=47.67, stdev=20.54, samples=257 iops : min= 1, max= 31, avg=11.26, stdev= 5.17, samples=257 lat (usec) : 50=0.29%, 100=2.05%, 250=0.16%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=6.45%, 4=4.52%, 10=7.19%, 20=8.53%, 50=36.88% lat (msec) : 100=27.18%, 250=6.45%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=4.52%, ctx=6316, 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=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=178687: Thu Aug 27 18:22:28 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5940KiB/129642msec) clat (usec): min=34, max=279426, avg=46800.39, stdev=31477.45 lat (usec): min=34, max=279427, avg=46801.66, stdev=31477.50 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 10028], 10.00th=[ 17695], 20.00th=[ 23987], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[152044], 99.50th=[206570], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 116, per=25.22%, avg=45.40, stdev=19.09, samples=255 iops : min= 1, max= 29, avg=10.70, stdev= 4.80, samples=255 write: IOPS=12, BW=48.0KiB/s (50.1kB/s)(6348KiB/129642msec); 0 zone resets clat (usec): min=788, max=847330, avg=37625.01, stdev=45008.77 lat (usec): min=789, max=847332, avg=37626.90, stdev=45008.62 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1237], 10.00th=[ 1598], 20.00th=[ 3687], | 30.00th=[ 7046], 40.00th=[ 14746], 50.00th=[ 26084], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 64750], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[170918], 99.50th=[198181], 99.90th=[312476], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 111, per=25.59%, avg=48.37, stdev=22.00, samples=255 iops : min= 1, max= 27, avg=11.45, stdev= 5.54, samples=255 lat (usec) : 50=0.16%, 100=1.89%, 250=0.10%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=6.25%, 4=4.56%, 10=7.45%, 20=8.76%, 50=38.28% lat (msec) : 100=24.93%, 250=7.10%, 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=4.34%, ctx=6191, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178689: Thu Aug 27 18:22:28 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(6028KiB/129875msec) clat (usec): min=37, max=360483, avg=46591.63, stdev=31703.33 lat (usec): min=38, max=360484, avg=46604.76, stdev=31702.06 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 139], 10.00th=[ 17433], 20.00th=[ 23725], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 47449], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[154141], 99.50th=[187696], 99.90th=[235930], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 101, per=25.75%, avg=46.34, stdev=18.44, samples=253 iops : min= 1, max= 25, avg=10.93, stdev= 4.63, samples=253 write: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6260KiB/129875msec); 0 zone resets clat (usec): min=967, max=891689, avg=37855.38, stdev=46268.41 lat (usec): min=969, max=891691, avg=37857.12, stdev=46268.51 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1516], 20.00th=[ 3654], | 30.00th=[ 6521], 40.00th=[ 15795], 50.00th=[ 26346], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 63701], 90.00th=[ 88605], 95.00th=[117965], | 99.00th=[185598], 99.50th=[217056], 99.90th=[325059], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 107, per=25.22%, avg=47.66, stdev=20.16, samples=255 iops : min= 1, max= 26, avg=11.26, stdev= 5.07, samples=255 lat (usec) : 50=0.20%, 100=2.18%, 250=0.16%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=6.64%, 4=4.33%, 10=7.52%, 20=7.65%, 50=38.87% lat (msec) : 100=25.78%, 250=6.22%, 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=4.42%, ctx=6225, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178690: Thu Aug 27 18:22:28 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6052KiB/132834msec) clat (usec): min=34, max=280219, avg=48363.42, stdev=32279.40 lat (usec): min=34, max=280220, avg=48365.96, stdev=32280.07 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 88], 10.00th=[ 17433], 20.00th=[ 23987], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[164627], 99.50th=[191890], 99.90th=[223347], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 111, per=25.32%, avg=45.58, stdev=16.94, samples=258 iops : min= 1, max= 27, avg=10.74, stdev= 4.26, samples=258 write: IOPS=11, BW=46.9KiB/s (48.1kB/s)(6236KiB/132834msec); 0 zone resets clat (usec): min=849, max=933513, avg=38014.08, stdev=46406.08 lat (usec): min=850, max=933515, avg=38016.97, stdev=46407.99 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1434], 20.00th=[ 3228], | 30.00th=[ 6980], 40.00th=[ 17171], 50.00th=[ 26608], 60.00th=[ 34341], | 70.00th=[ 47449], 80.00th=[ 66323], 90.00th=[ 90702], 95.00th=[121111], | 99.00th=[187696], 99.50th=[208667], 99.90th=[299893], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 102, per=24.62%, avg=46.53, stdev=20.98, samples=260 iops : min= 1, max= 25, avg=10.99, stdev= 5.28, samples=260 lat (usec) : 50=0.29%, 100=2.25%, 250=0.07%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=7.03%, 4=4.49%, 10=6.22%, 20=8.17%, 50=37.99% lat (msec) : 100=26.37%, 250=6.90%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.46%, ctx=6376, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=181KiB/s (185kB/s), 45.6KiB/s-46.4KiB/s (46.7kB/s-47.5kB/s), io=23.4MiB (24.6MB), run=129642-132834msec WRITE: bw=189KiB/s (194kB/s), 46.9KiB/s-48.0KiB/s (48.1kB/s-50.1kB/s), io=24.6MiB (25.7MB), run=129642-132834msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178686: Thu Aug 27 18:23:11 2026 read: IOPS=8, BW=34.1KiB/s (34.9kB/s)(5992KiB/175628msec) clat (msec): min=5, max=1163, avg=45.64, stdev=50.52 lat (msec): min=5, max=1163, avg=45.64, stdev=50.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 68], 90.00th=[ 101], 95.00th=[ 128], | 99.00th=[ 207], 99.50th=[ 251], 99.90th=[ 384], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 119, per=25.23%, avg=34.32, stdev=24.09, samples=339 iops : min= 1, max= 29, avg= 7.91, stdev= 6.06, samples=339 write: IOPS=8, BW=35.8KiB/s (36.7kB/s)(6296KiB/175628msec); 0 zone resets clat (msec): min=11, max=413, avg=67.93, stdev=49.76 lat (msec): min=11, max=413, avg=67.94, stdev=49.76 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 63], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 134], 95.00th=[ 171], | 99.00th=[ 239], 99.50th=[ 292], 99.90th=[ 355], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 103, per=25.31%, avg=35.94, stdev=22.47, samples=340 iops : min= 1, max= 25, avg= 8.32, stdev= 5.64, samples=340 lat (msec) : 10=1.79%, 20=13.44%, 50=45.96%, 100=24.15%, 250=13.93% lat (msec) : 500=0.68%, 2000=0.03% cpu : usr=0.06%, sys=1.55%, ctx=4631, 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=178688: Thu Aug 27 18:23:11 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(5940KiB/176430msec) clat (msec): min=5, max=919, avg=45.63, stdev=47.83 lat (msec): min=5, max=919, avg=45.64, stdev=47.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 105], 95.00th=[ 140], | 99.00th=[ 199], 99.50th=[ 245], 99.90th=[ 317], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 127, per=25.57%, avg=34.78, stdev=24.06, samples=330 iops : min= 1, max= 31, avg= 8.03, stdev= 6.04, samples=330 write: IOPS=8, BW=35.0KiB/s (36.8kB/s)(6348KiB/176430msec); 0 zone resets clat (msec): min=11, max=440, avg=68.32, stdev=49.72 lat (msec): min=11, max=440, avg=68.32, stdev=49.71 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 104], 90.00th=[ 133], 95.00th=[ 165], | 99.00th=[ 253], 99.50th=[ 288], 99.90th=[ 376], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=35.72, stdev=22.34, samples=343 iops : min= 1, max= 25, avg= 8.26, stdev= 5.61, samples=343 lat (msec) : 10=1.73%, 20=13.09%, 50=45.87%, 100=22.95%, 250=15.63% lat (msec) : 500=0.72%, 1000=0.03% cpu : usr=0.06%, sys=1.54%, ctx=4685, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178691: Thu Aug 27 18:23:11 2026 read: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6028KiB/173924msec) clat (msec): min=5, max=386, avg=45.02, stdev=41.28 lat (msec): min=5, max=386, avg=45.02, stdev=41.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 103], 95.00th=[ 128], | 99.00th=[ 199], 99.50th=[ 236], 99.90th=[ 275], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 126, per=25.68%, avg=34.93, stdev=23.33, samples=334 iops : min= 1, max= 31, avg= 8.07, stdev= 5.86, samples=334 write: IOPS=8, BW=35.0KiB/s (36.9kB/s)(6260KiB/173924msec); 0 zone resets clat (msec): min=10, max=910, avg=67.62, stdev=52.49 lat (msec): min=10, max=910, avg=67.63, stdev=52.49 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 79], 80.00th=[ 102], 90.00th=[ 131], 95.00th=[ 159], | 99.00th=[ 241], 99.50th=[ 300], 99.90th=[ 409], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 103, per=25.25%, avg=35.85, stdev=22.84, samples=338 iops : min= 1, max= 25, avg= 8.29, stdev= 5.74, samples=338 lat (msec) : 10=1.82%, 20=13.35%, 50=45.80%, 100=23.50%, 250=14.97% lat (msec) : 500=0.52%, 1000=0.03% cpu : usr=0.05%, sys=1.52%, ctx=4582, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178692: Thu Aug 27 18:23:11 2026 read: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6052KiB/174565msec) clat (msec): min=5, max=294, avg=45.31, stdev=41.62 lat (msec): min=5, max=294, avg=45.32, stdev=41.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 67], 90.00th=[ 104], 95.00th=[ 134], | 99.00th=[ 205], 99.50th=[ 232], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 127, per=26.20%, avg=35.64, stdev=24.19, samples=329 iops : min= 1, max= 31, avg= 8.23, stdev= 6.09, samples=329 write: IOPS=8, BW=35.7KiB/s (36.6kB/s)(6236KiB/174565msec); 0 zone resets clat (msec): min=9, max=918, avg=67.87, stdev=53.80 lat (msec): min=9, max=918, avg=67.88, stdev=53.80 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 78], 80.00th=[ 102], 90.00th=[ 138], 95.00th=[ 169], | 99.00th=[ 232], 99.50th=[ 262], 99.90th=[ 447], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 103, per=24.87%, avg=35.31, stdev=22.09, samples=341 iops : min= 1, max= 25, avg= 8.16, stdev= 5.57, samples=341 lat (msec) : 10=1.95%, 20=13.90%, 50=45.70%, 100=22.85%, 250=15.10% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.05%, sys=1.57%, ctx=4608, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=136KiB/s (139kB/s), 33.7KiB/s-34.7KiB/s (34.5kB/s-35.5kB/s), io=23.4MiB (24.6MB), run=173924-176430msec WRITE: bw=142KiB/s (146kB/s), 35.7KiB/s-35.0KiB/s (36.6kB/s-36.9kB/s), io=24.6MiB (25.7MB), run=173924-176430msec 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=178741: Thu Aug 27 18:23:57 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(5920KiB/33725msec) clat (usec): min=41, max=190156, avg=47401.89, stdev=31158.85 lat (usec): min=41, max=190158, avg=47404.46, stdev=31158.64 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 99], 20.00th=[ 23987], | 30.00th=[ 30540], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 50594], | 70.00th=[ 57934], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[145753], 99.50th=[162530], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 316, per=24.69%, avg=175.33, stdev=61.80, samples=66 iops : min= 1, max= 19, avg=10.15, stdev= 3.91, samples=66 write: IOPS=11, BW=189KiB/s (193kB/s)(6368KiB/33725msec); 0 zone resets clat (usec): min=1577, max=186999, avg=40487.66, stdev=38052.50 lat (usec): min=1578, max=187003, avg=40504.21, stdev=38046.55 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2024], 10.00th=[ 3490], 20.00th=[ 5997], | 30.00th=[ 10552], 40.00th=[ 20055], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 56361], 80.00th=[ 71828], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[145753], 99.50th=[168821], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 62, max= 414, per=25.36%, avg=189.42, stdev=70.15, samples=66 iops : min= 3, max= 25, avg=11.03, stdev= 4.39, samples=66 lat (usec) : 50=0.26%, 100=4.56%, 250=0.13%, 1000=0.26% lat (msec) : 2=2.47%, 4=3.78%, 10=9.11%, 20=7.03%, 50=34.90% lat (msec) : 100=30.21%, 250=7.29% cpu : usr=0.06%, sys=4.97%, ctx=1694, 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=178742: Thu Aug 27 18:23:57 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(5744KiB/33242msec) clat (usec): min=36, max=271150, avg=48145.43, stdev=35087.66 lat (usec): min=37, max=271151, avg=48152.85, stdev=35092.56 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 343], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 36963], 50.00th=[ 42206], 60.00th=[ 49546], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[113771], | 99.00th=[189793], 99.50th=[214959], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 30, max= 345, per=24.69%, avg=175.27, stdev=69.51, samples=64 iops : min= 1, max= 21, avg=10.14, stdev= 4.40, samples=64 write: IOPS=12, BW=197KiB/s (202kB/s)(6544KiB/33242msec); 0 zone resets clat (usec): min=1348, max=234525, avg=38243.92, stdev=38388.62 lat (usec): min=1350, max=234529, avg=38248.50, stdev=38393.68 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2057], 10.00th=[ 3294], 20.00th=[ 5407], | 30.00th=[ 9110], 40.00th=[ 17171], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 48497], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[160433], 99.50th=[179307], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 27, max= 350, per=26.43%, avg=197.45, stdev=76.85, samples=65 iops : min= 1, max= 21, avg=11.54, stdev= 4.85, samples=65 lat (usec) : 50=0.39%, 100=3.52%, 250=0.65%, 500=0.13% lat (msec) : 2=2.73%, 4=5.08%, 10=9.24%, 20=7.55%, 50=36.85% lat (msec) : 100=25.91%, 250=7.81%, 500=0.13% cpu : usr=0.05%, sys=4.94%, ctx=1695, 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=178743: Thu Aug 27 18:23:57 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(6256KiB/33244msec) clat (usec): min=39, max=232722, avg=45691.39, stdev=30213.56 lat (usec): min=39, max=232723, avg=45692.62, stdev=30213.63 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 9503], 20.00th=[ 23462], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 42730], 60.00th=[ 47449], | 70.00th=[ 56361], 80.00th=[ 65799], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[145753], 99.50th=[170918], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 29, max= 378, per=26.99%, avg=191.66, stdev=78.65, samples=64 iops : min= 1, max= 23, avg=11.17, stdev= 4.95, samples=64 write: IOPS=11, BW=181KiB/s (186kB/s)(6032KiB/33244msec); 0 zone resets clat (usec): min=1380, max=217292, avg=40094.89, stdev=38980.10 lat (usec): min=1382, max=217294, avg=40097.99, stdev=38979.41 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1860], 10.00th=[ 2769], 20.00th=[ 6325], | 30.00th=[ 11994], 40.00th=[ 21103], 50.00th=[ 29230], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 64750], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[185598], 99.50th=[189793], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 502, per=23.99%, avg=179.20, stdev=85.99, samples=65 iops : min= 1, max= 31, avg=10.38, stdev= 5.45, samples=65 lat (usec) : 50=0.13%, 100=4.04%, 250=0.65% lat (msec) : 2=3.26%, 4=3.52%, 10=7.29%, 20=7.42%, 50=39.32% lat (msec) : 100=27.73%, 250=6.64% cpu : usr=0.05%, sys=4.76%, ctx=1645, 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=178744: Thu Aug 27 18:23:57 2026 read: IOPS=11, BW=185KiB/s (189kB/s)(6032KiB/32630msec) clat (usec): min=40, max=291261, avg=45129.50, stdev=36929.58 lat (usec): min=40, max=291262, avg=45130.78, stdev=36929.73 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 74], 20.00th=[ 17695], | 30.00th=[ 24773], 40.00th=[ 31851], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[193987], 99.50th=[214959], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 350, per=26.28%, avg=186.60, stdev=76.40, samples=63 iops : min= 1, max= 21, avg=10.86, stdev= 4.76, samples=63 write: IOPS=11, BW=192KiB/s (196kB/s)(6256KiB/32630msec); 0 zone resets clat (usec): min=1500, max=204178, avg=39381.89, stdev=38130.96 lat (usec): min=1501, max=204179, avg=39384.37, stdev=38130.62 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1942], 10.00th=[ 3032], 20.00th=[ 6194], | 30.00th=[ 10290], 40.00th=[ 19006], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 98042], 95.00th=[116917], | 99.00th=[162530], 99.50th=[200279], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 31, max= 448, per=25.78%, avg=192.61, stdev=80.14, samples=64 iops : min= 1, max= 28, avg=11.23, stdev= 5.08, samples=64 lat (usec) : 50=0.52%, 100=6.12%, 250=0.52%, 750=0.13%, 1000=0.13% lat (msec) : 2=2.86%, 4=4.56%, 10=8.07%, 20=8.46%, 50=33.98% lat (msec) : 100=26.95%, 250=7.55%, 500=0.13% cpu : usr=0.06%, sys=5.05%, ctx=1632, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=710KiB/s (727kB/s), 173KiB/s-188KiB/s (177kB/s-193kB/s), io=23.4MiB (24.5MB), run=32630-33725msec WRITE: bw=747KiB/s (765kB/s), 181KiB/s-197KiB/s (186kB/s-202kB/s), io=24.6MiB (25.8MB), run=32630-33725msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178745: Thu Aug 27 18:24:11 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(5920KiB/47126msec) clat (msec): min=6, max=262, avg=48.72, stdev=42.60 lat (msec): min=6, max=262, avg=48.73, stdev=42.60 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 50], 80.00th=[ 63], 90.00th=[ 108], 95.00th=[ 148], | 99.00th=[ 207], 99.50th=[ 245], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 415, per=25.05%, avg=126.25, stdev=76.77, samples=92 iops : min= 1, max= 25, avg= 7.08, stdev= 4.82, samples=92 write: IOPS=8, BW=135KiB/s (138kB/s)(6368KiB/47126msec); 0 zone resets clat (msec): min=15, max=265, avg=72.10, stdev=47.84 lat (msec): min=15, max=265, avg=72.10, stdev=47.84 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 27], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 82], 80.00th=[ 100], 90.00th=[ 142], 95.00th=[ 176], | 99.00th=[ 255], 99.50th=[ 264], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 351, per=25.87%, avg=137.12, stdev=79.99, samples=91 iops : min= 1, max= 21, avg= 7.76, stdev= 5.04, samples=91 lat (msec) : 10=1.17%, 20=9.90%, 50=43.88%, 100=28.91%, 250=15.49% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.40%, ctx=1123, 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=178746: Thu Aug 27 18:24:11 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5744KiB/46424msec) clat (msec): min=6, max=246, avg=49.51, stdev=43.91 lat (msec): min=6, max=246, avg=49.52, stdev=43.91 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 72], 90.00th=[ 113], 95.00th=[ 153], | 99.00th=[ 222], 99.50th=[ 245], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 30, max= 348, per=25.48%, avg=128.40, stdev=81.61, samples=87 iops : min= 1, max= 21, avg= 7.21, stdev= 5.11, samples=87 write: IOPS=8, BW=141KiB/s (144kB/s)(6544KiB/46424msec); 0 zone resets clat (msec): min=17, max=257, avg=69.73, stdev=43.48 lat (msec): min=17, max=257, avg=69.74, stdev=43.48 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 78], 80.00th=[ 101], 90.00th=[ 131], 95.00th=[ 165], | 99.00th=[ 205], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 382, per=26.35%, avg=139.67, stdev=75.80, samples=91 iops : min= 1, max= 23, avg= 7.92, stdev= 4.78, samples=91 lat (msec) : 10=0.78%, 20=10.03%, 50=44.01%, 100=28.65%, 250=16.15% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.48%, ctx=1122, 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=178747: Thu Aug 27 18:24:11 2026 read: IOPS=8, BW=134KiB/s (138kB/s)(6256KiB/46532msec) clat (msec): min=7, max=295, avg=51.53, stdev=43.47 lat (msec): min=7, max=295, avg=51.53, stdev=43.47 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 58], 80.00th=[ 75], 90.00th=[ 111], 95.00th=[ 140], | 99.00th=[ 228], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 381, per=27.00%, avg=136.07, stdev=87.45, samples=90 iops : min= 1, max= 23, avg= 7.68, stdev= 5.53, samples=90 write: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46532msec); 0 zone resets clat (msec): min=18, max=280, avg=68.62, stdev=42.81 lat (msec): min=18, max=280, avg=68.63, stdev=42.81 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 79], 80.00th=[ 96], 90.00th=[ 129], 95.00th=[ 157], | 99.00th=[ 199], 99.50th=[ 259], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 287, per=24.01%, avg=127.26, stdev=65.92, samples=91 iops : min= 1, max= 17, avg= 7.13, stdev= 4.13, samples=91 lat (msec) : 10=0.52%, 20=9.24%, 50=45.31%, 100=29.56%, 250=14.84% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.42%, ctx=1132, 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=178748: Thu Aug 27 18:24:11 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47499msec) clat (msec): min=6, max=291, avg=53.99, stdev=52.61 lat (msec): min=6, max=291, avg=53.99, stdev=52.61 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 26], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 54], 80.00th=[ 75], 90.00th=[ 128], 95.00th=[ 182], | 99.00th=[ 257], 99.50th=[ 284], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 383, per=25.68%, avg=129.43, stdev=81.90, samples=90 iops : min= 1, max= 23, avg= 7.28, stdev= 5.15, samples=90 write: IOPS=8, BW=132KiB/s (135kB/s)(6256KiB/47499msec); 0 zone resets clat (msec): min=15, max=258, avg=68.31, stdev=43.69 lat (msec): min=15, max=258, avg=68.31, stdev=43.69 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 36], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 129], 95.00th=[ 167], | 99.00th=[ 232], 99.50th=[ 247], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 351, per=24.81%, avg=131.47, stdev=77.83, samples=92 iops : min= 1, max= 21, avg= 7.40, stdev= 4.90, samples=92 lat (msec) : 10=0.26%, 20=10.03%, 50=45.44%, 100=27.86%, 250=15.76% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.40%, ctx=1169, 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=504KiB/s (516kB/s), 124KiB/s-134KiB/s (127kB/s-138kB/s), io=23.4MiB (24.5MB), run=46424-47499msec WRITE: bw=531KiB/s (543kB/s), 130KiB/s-141KiB/s (133kB/s-144kB/s), io=24.6MiB (25.8MB), run=46424-47499msec 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=178762: Thu Aug 27 18:24:28 2026 read: IOPS=2, BW=2297KiB/s (2352kB/s)(7168KiB/3121msec) clat (msec): min=169, max=310, avg=227.41, stdev=57.07 lat (msec): min=169, max=310, avg=227.41, stdev=57.07 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 288], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1367, max= 4071, per=63.43%, avg=2844.00, stdev=1355.01, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1640KiB/s (1680kB/s)(5120KiB/3121msec); 0 zone resets clat (msec): min=209, max=282, avg=243.21, stdev=31.83 lat (msec): min=209, max=283, avg=243.32, stdev=31.85 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 230], 60.00th=[ 230], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2023, max= 3946, per=42.50%, avg=2668.00, stdev=1106.80, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=58.33%, 500=41.67% cpu : usr=0.00%, sys=12.72%, ctx=169, 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=178763: Thu Aug 27 18:24:28 2026 read: IOPS=0, BW=448KiB/s (459kB/s)(2048KiB/4567msec) clat (msec): min=191, max=202, avg=197.36, stdev= 7.63 lat (msec): min=191, max=202, avg=197.36, stdev= 7.63 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 203], 95.00th=[ 203], | 99.00th=[ 203], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 1358, max= 2023, per=37.70%, avg=1690.50, stdev=470.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2242KiB/s (2296kB/s)(10.0MiB/4567msec); 0 zone resets clat (msec): min=218, max=723, avg=408.90, stdev=152.96 lat (msec): min=218, max=723, avg=409.04, stdev=152.96 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 334], 40.00th=[ 338], 50.00th=[ 363], 60.00th=[ 388], | 70.00th=[ 489], 80.00th=[ 506], 90.00th=[ 514], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1358, max= 4047, per=34.70%, avg=2178.38, stdev=788.56, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=11.78%, ctx=131, 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=178764: Thu Aug 27 18:24:28 2026 read: IOPS=1, BW=1565KiB/s (1602kB/s)(6144KiB/3927msec) clat (usec): min=521, max=585593, avg=219249.25, stdev=223066.21 lat (usec): min=522, max=585595, avg=219250.21, stdev=223066.22 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 947], | 30.00th=[ 947], 40.00th=[164627], 50.00th=[164627], 60.00th=[217056], | 70.00th=[346031], 80.00th=[346031], 90.00th=[583009], 95.00th=[583009], | 99.00th=[583009], 99.50th=[583009], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 2019, max= 4047, per=74.43%, avg=3337.33, stdev=1142.83, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1565KiB/s (1602kB/s)(6144KiB/3927msec); 0 zone resets clat (msec): min=231, max=953, avg=397.27, stdev=274.69 lat (msec): min=231, max=953, avg=397.37, stdev=274.74 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 309], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1374, max= 3946, per=36.03%, avg=2262.20, stdev=979.47, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=8.76%, ctx=122, 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=178765: Thu Aug 27 18:24:28 2026 read: IOPS=1, BW=1271KiB/s (1302kB/s)(5120KiB/4027msec) clat (usec): min=1567, max=295184, avg=112599.76, stdev=151676.93 lat (usec): min=1568, max=295185, avg=112600.90, stdev=151677.04 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1565], 10.00th=[ 1565], 20.00th=[ 1565], | 30.00th=[ 1696], 40.00th=[ 1696], 50.00th=[ 3261], 60.00th=[ 3261], | 70.00th=[261096], 80.00th=[261096], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1780KiB/s (1823kB/s)(7168KiB/4027msec); 0 zone resets clat (msec): min=105, max=780, avg=452.87, stdev=251.93 lat (msec): min=105, max=781, avg=453.69, stdev=251.65 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 279], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 776], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1957, max= 4039, per=38.45%, avg=2413.80, stdev=909.01, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=16.67%, 4=8.33%, 250=8.33%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=9.76%, ctx=120, 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=4484KiB/s (4592kB/s), 448KiB/s-2297KiB/s (459kB/s-2352kB/s), io=20.0MiB (20.0MB), run=3121-4567msec WRITE: bw=6278KiB/s (6429kB/s), 1565KiB/s-2242KiB/s (1602kB/s-2296kB/s), io=28.0MiB (29.4MB), run=3121-4567msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178766: Thu Aug 27 18:24:29 2026 read: IOPS=1, BW=1796KiB/s (1840kB/s)(7168KiB/3990msec) clat (msec): min=124, max=596, avg=227.02, stdev=169.24 lat (msec): min=124, max=596, avg=227.03, stdev=169.24 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 132], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 171], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 257], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1422, max= 4071, per=56.71%, avg=2318.80, stdev=1014.71, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1283KiB/s (1314kB/s)(5120KiB/3990msec); 0 zone resets clat (msec): min=306, max=574, avg=454.29, stdev=116.60 lat (msec): min=315, max=574, avg=456.45, stdev=114.01 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1928, max= 4047, per=46.57%, avg=2666.00, stdev=1196.92, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.05%, sys=3.28%, 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=178767: Thu Aug 27 18:24:29 2026 read: IOPS=0, BW=409KiB/s (419kB/s)(2048KiB/5008msec) clat (msec): min=100, max=150, avg=125.65, stdev=35.23 lat (msec): min=100, max=150, avg=125.66, stdev=35.23 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 102], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 1484, max= 2039, per=43.08%, avg=1761.50, stdev=392.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2045KiB/s (2094kB/s)(10.0MiB/5008msec); 0 zone resets clat (msec): min=63, max=1262, avg=449.59, stdev=363.84 lat (msec): min=63, max=1262, avg=449.71, stdev=363.88 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 114], | 30.00th=[ 186], 40.00th=[ 296], 50.00th=[ 309], 60.00th=[ 317], | 70.00th=[ 558], 80.00th=[ 642], 90.00th=[ 751], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1484, max= 6107, per=54.85%, avg=3140.00, stdev=1925.35, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=4.13%, ctx=179, 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=178768: Thu Aug 27 18:24:29 2026 read: IOPS=1, BW=1298KiB/s (1329kB/s)(6144KiB/4734msec) clat (msec): min=105, max=695, avg=284.50, stdev=214.66 lat (msec): min=105, max=695, avg=284.50, stdev=214.66 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 284], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2023, max= 3856, per=60.85%, avg=2488.25, stdev=911.86, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1298KiB/s (1329kB/s)(6144KiB/4734msec); 0 zone resets clat (msec): min=170, max=890, avg=444.45, stdev=243.78 lat (msec): min=170, max=890, avg=444.54, stdev=243.78 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 456], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1928, max= 2039, per=35.18%, avg=2013.83, stdev=42.58, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=4.48%, ctx=136, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178769: Thu Aug 27 18:24:29 2026 read: IOPS=1, BW=1098KiB/s (1124kB/s)(5120KiB/4663msec) clat (msec): min=88, max=412, avg=275.58, stdev=141.07 lat (msec): min=88, max=412, avg=275.58, stdev=141.07 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 4047, max= 4079, per=99.36%, avg=4063.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1537KiB/s (1574kB/s)(7168KiB/4663msec); 0 zone resets clat (msec): min=107, max=868, avg=426.80, stdev=302.04 lat (msec): min=108, max=868, avg=427.85, stdev=301.69 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 136], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 460], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 726], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1475, max= 2039, per=33.05%, avg=1892.20, stdev=237.05, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.08%, ctx=113, 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=4089KiB/s (4188kB/s), 409KiB/s-1796KiB/s (419kB/s-1840kB/s), io=20.0MiB (20.0MB), run=3990-5008msec WRITE: bw=5725KiB/s (5863kB/s), 1283KiB/s-2045KiB/s (1314kB/s-2094kB/s), io=28.0MiB (29.4MB), run=3990-5008msec 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=178778: Thu Aug 27 18:24:46 2026 read: IOPS=1, BW=5150KiB/s (5274kB/s)(12.0MiB/2386msec) clat (msec): min=270, max=1703, avg=771.94, stdev=807.27 lat (msec): min=270, max=1703, avg=771.94, stdev=807.27 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 6187, max= 8000, per=100.00%, avg=7093.50, stdev=1281.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.52%, ctx=52, 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=178780: Thu Aug 27 18:24:46 2026 read: IOPS=0, BW=1182KiB/s (1210kB/s)(4096KiB/3465msec) clat (nsec): min=950759k, max=950759k, avg=950758544.00, stdev= 0.00 lat (nsec): min=950762k, max=950762k, avg=950762326.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2364KiB/s (2421kB/s)(8192KiB/3465msec); 0 zone resets clat (msec): min=301, max=2159, avg=1230.56, stdev=1314.22 lat (msec): min=301, max=2160, avg=1231.13, stdev=1314.07 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=[ 2165], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.54%, ctx=48, 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=178781: Thu Aug 27 18:24:46 2026 write: IOPS=0, BW=3483KiB/s (3567kB/s)(12.0MiB/3528msec); 0 zone resets clat (msec): min=321, max=2594, avg=1151.81, stdev=1253.83 lat (msec): min=321, max=2594, avg=1152.23, stdev=1253.87 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 6005, max= 8143, per=76.17%, avg=7074.00, stdev=1511.79, 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=2.95%, ctx=51, 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=178783: Thu Aug 27 18:24:46 2026 write: IOPS=1, BW=6515KiB/s (6672kB/s)(12.0MiB/1886msec); 0 zone resets clat (msec): min=504, max=761, avg=608.47, stdev=135.23 lat (msec): min=505, max=762, avg=609.02, stdev=135.36 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 6965, max= 7968, per=80.40%, avg=7466.50, stdev=709.23, 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=4.14%, ctx=48, 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=4728KiB/s (4842kB/s), 1182KiB/s-5150KiB/s (1210kB/s-5274kB/s), io=16.0MiB (16.8MB), run=2386-3465msec WRITE: bw=9288KiB/s (9511kB/s), 2364KiB/s-6515KiB/s (2421kB/s-6672kB/s), io=32.0MiB (33.6MB), run=1886-3528msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178777: Thu Aug 27 18:24:46 2026 read: IOPS=1, BW=4679KiB/s (4792kB/s)(12.0MiB/2626msec) clat (msec): min=693, max=892, avg=814.75, stdev=106.81 lat (msec): min=693, max=892, avg=814.75, stdev=106.81 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7953, max= 8175, per=100.00%, avg=8064.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.89%, ctx=475, 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=178779: Thu Aug 27 18:24:46 2026 read: IOPS=0, BW=1359KiB/s (1392kB/s)(4096KiB/3014msec) clat (nsec): min=652066k, max=652066k, avg=652066299.00, stdev= 0.00 lat (nsec): min=652070k, max=652070k, avg=652069562.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2718KiB/s (2783kB/s)(8192KiB/3014msec); 0 zone resets clat (msec): min=292, max=1967, avg=1129.92, stdev=1184.60 lat (msec): min=292, max=1968, avg=1130.29, stdev=1184.76 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 1972], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 8175, max= 8175, per=89.57%, avg=8175.00, 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=4.11%, ctx=153, 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=178782: Thu Aug 27 18:24:46 2026 write: IOPS=0, BW=3423KiB/s (3505kB/s)(12.0MiB/3590msec); 0 zone resets clat (msec): min=754, max=1461, avg=1167.92, stdev=368.20 lat (msec): min=758, max=1464, avg=1170.10, stdev=367.46 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8047, max= 8143, per=88.69%, avg=8095.00, stdev=67.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.48%, ctx=45, 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=178784: Thu Aug 27 18:24:46 2026 write: IOPS=1, BW=5011KiB/s (5132kB/s)(12.0MiB/2452msec); 0 zone resets clat (msec): min=446, max=1061, avg=760.48, stdev=307.69 lat (msec): min=447, max=1061, avg=760.87, stdev=307.53 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7984, max= 8192, per=88.62%, avg=8088.00, stdev=147.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.75%, ctx=49, 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=5436KiB/s (5566kB/s), 1359KiB/s-4679KiB/s (1392kB/s-4792kB/s), io=16.0MiB (16.8MB), run=2626-3014msec WRITE: bw=9128KiB/s (9347kB/s), 2718KiB/s-5011KiB/s (2783kB/s-5132kB/s), io=32.0MiB (33.6MB), run=2452-3590msec