== sanity test 398b: DIO and buffer IO race ============== 19:11:55 (1763338315) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.48926 s, 9.2 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=182388: Sun Nov 16 19:13:57 2025 read: IOPS=14, BW=57.1KiB/s (58.5kB/s)(5992KiB/104871msec) clat (usec): min=108, max=789852, avg=38950.82, stdev=30059.72 lat (usec): min=108, max=789855, avg=38955.37, stdev=30063.32 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 9241], 10.00th=[ 15270], 20.00th=[ 21103], | 30.00th=[ 25297], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 40109], | 70.00th=[ 46924], 80.00th=[ 54789], 90.00th=[ 66323], 95.00th=[ 77071], | 99.00th=[110625], 99.50th=[143655], 99.90th=[208667], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 15, max= 127, per=25.09%, avg=57.20, stdev=18.95, samples=205 iops : min= 3, max= 31, avg=13.66, stdev= 4.76, samples=205 write: IOPS=15, BW=60.0KiB/s (61.5kB/s)(6296KiB/104871msec); 0 zone resets clat (usec): min=949, max=245963, avg=29241.04, stdev=29511.83 lat (usec): min=950, max=245965, avg=29244.01, stdev=29510.87 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1352], 20.00th=[ 2442], | 30.00th=[ 7373], 40.00th=[ 14877], 50.00th=[ 22152], 60.00th=[ 29230], | 70.00th=[ 37487], 80.00th=[ 50070], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[126354], 99.50th=[143655], 99.90th=[227541], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 159, per=25.15%, avg=60.12, stdev=24.15, samples=205 iops : min= 1, max= 39, avg=14.39, stdev= 6.05, samples=205 lat (usec) : 250=1.66%, 500=0.42%, 1000=0.16% lat (msec) : 2=8.79%, 4=3.29%, 10=5.76%, 20=13.15%, 50=43.88% lat (msec) : 100=20.54%, 250=2.31%, 1000=0.03% cpu : usr=0.10%, sys=7.36%, ctx=6638, 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=182389: Sun Nov 16 19:13:57 2025 read: IOPS=14, BW=56.8KiB/s (58.2kB/s)(5940KiB/104583msec) clat (usec): min=114, max=279721, avg=39485.17, stdev=23685.02 lat (usec): min=114, max=279722, avg=39487.26, stdev=23685.48 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 12387], 10.00th=[ 16581], 20.00th=[ 21627], | 30.00th=[ 25560], 40.00th=[ 29754], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 46924], 80.00th=[ 55313], 90.00th=[ 67634], 95.00th=[ 80217], | 99.00th=[119014], 99.50th=[139461], 99.90th=[170918], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 5, max= 103, per=24.85%, avg=56.65, stdev=19.82, samples=205 iops : min= 1, max= 25, avg=13.53, stdev= 5.01, samples=205 write: IOPS=15, BW=60.7KiB/s (62.2kB/s)(6348KiB/104583msec); 0 zone resets clat (usec): min=957, max=824200, avg=28716.37, stdev=34687.45 lat (usec): min=958, max=824201, avg=28718.03, stdev=34687.47 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1319], 20.00th=[ 2409], | 30.00th=[ 6718], 40.00th=[ 13960], 50.00th=[ 21365], 60.00th=[ 28443], | 70.00th=[ 36439], 80.00th=[ 48497], 90.00th=[ 66847], 95.00th=[ 85459], | 99.00th=[128451], 99.50th=[145753], 99.90th=[168821], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 15, max= 134, per=25.28%, avg=60.42, stdev=21.84, samples=205 iops : min= 3, max= 33, avg=14.46, stdev= 5.47, samples=205 lat (usec) : 250=1.17%, 500=0.33%, 1000=0.13% lat (msec) : 2=8.85%, 4=3.74%, 10=5.76%, 20=12.04%, 50=45.44% lat (msec) : 100=20.35%, 250=2.12%, 500=0.03%, 1000=0.03% cpu : usr=0.11%, sys=7.25%, ctx=6631, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182390: Sun Nov 16 19:13:57 2025 read: IOPS=14, BW=57.5KiB/s (58.9kB/s)(6028KiB/104855msec) clat (usec): min=106, max=300263, avg=38431.69, stdev=24423.53 lat (usec): min=107, max=300263, avg=38437.17, stdev=24426.12 clat percentiles (usec): | 1.00th=[ 159], 5.00th=[ 8979], 10.00th=[ 14877], 20.00th=[ 20579], | 30.00th=[ 25035], 40.00th=[ 29230], 50.00th=[ 33817], 60.00th=[ 39584], | 70.00th=[ 45876], 80.00th=[ 53740], 90.00th=[ 66323], 95.00th=[ 83362], | 99.00th=[120062], 99.50th=[129500], 99.90th=[212861], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 15, max= 103, per=25.21%, avg=57.48, stdev=19.92, samples=205 iops : min= 3, max= 25, avg=13.72, stdev= 4.98, samples=205 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(6260KiB/104855msec); 0 zone resets clat (usec): min=899, max=913817, avg=29744.98, stdev=36535.36 lat (usec): min=900, max=913820, avg=29746.72, stdev=36535.37 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1369], 20.00th=[ 3359], | 30.00th=[ 7635], 40.00th=[ 14484], 50.00th=[ 21627], 60.00th=[ 28181], | 70.00th=[ 36963], 80.00th=[ 51643], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[120062], 99.50th=[143655], 99.90th=[210764], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 127, per=24.98%, avg=59.71, stdev=22.40, samples=205 iops : min= 1, max= 31, avg=14.28, stdev= 5.61, samples=205 lat (usec) : 250=1.43%, 500=0.78%, 750=0.03%, 1000=0.29% lat (msec) : 2=7.52%, 4=3.35%, 10=6.58%, 20=13.74%, 50=43.95% lat (msec) : 100=20.05%, 250=2.21%, 500=0.03%, 1000=0.03% cpu : usr=0.11%, sys=7.37%, ctx=6606, 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=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=182391: Sun Nov 16 19:13:57 2025 read: IOPS=14, BW=57.7KiB/s (59.1kB/s)(6052KiB/104922msec) clat (usec): min=127, max=176886, avg=38778.07, stdev=23899.41 lat (usec): min=129, max=176887, avg=38779.67, stdev=23899.53 clat percentiles (usec): | 1.00th=[ 155], 5.00th=[ 1418], 10.00th=[ 15533], 20.00th=[ 21103], | 30.00th=[ 25297], 40.00th=[ 29754], 50.00th=[ 34341], 60.00th=[ 39584], | 70.00th=[ 46400], 80.00th=[ 54264], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[128451], 99.50th=[137364], 99.90th=[173016], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 15, max= 110, per=25.39%, avg=57.88, stdev=18.47, samples=205 iops : min= 3, max= 27, avg=13.82, stdev= 4.65, samples=205 write: IOPS=14, BW=59.4KiB/s (60.9kB/s)(6236KiB/104922msec); 0 zone resets clat (usec): min=830, max=840378, avg=29379.94, stdev=35702.03 lat (usec): min=831, max=840382, avg=29381.77, stdev=35702.23 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1385], 20.00th=[ 3064], | 30.00th=[ 6915], 40.00th=[ 15008], 50.00th=[ 22152], 60.00th=[ 28181], | 70.00th=[ 37487], 80.00th=[ 50594], 90.00th=[ 66847], 95.00th=[ 85459], | 99.00th=[130548], 99.50th=[164627], 99.90th=[227541], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 15, max= 119, per=24.83%, avg=59.33, stdev=21.78, samples=206 iops : min= 3, max= 29, avg=14.20, stdev= 5.48, samples=206 lat (usec) : 250=1.79%, 500=0.46%, 750=0.10%, 1000=0.16% lat (msec) : 2=7.75%, 4=3.84%, 10=5.86%, 20=12.47%, 50=44.92% lat (msec) : 100=20.28%, 250=2.34%, 1000=0.03% cpu : usr=0.13%, sys=7.12%, ctx=6580, 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=229KiB/s (234kB/s), 56.8KiB/s-57.7KiB/s (58.2kB/s-59.1kB/s), io=23.4MiB (24.6MB), run=104583-104922msec WRITE: bw=240KiB/s (245kB/s), 59.4KiB/s-60.7KiB/s (60.9kB/s-62.2kB/s), io=24.6MiB (25.7MB), run=104583-104922msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182384: Sun Nov 16 19:14:33 2025 read: IOPS=10, BW=42.4KiB/s (43.5kB/s)(5992KiB/141204msec) clat (msec): min=5, max=840, avg=35.72, stdev=38.00 lat (msec): min=5, max=840, avg=35.73, stdev=38.00 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 79], 95.00th=[ 103], | 99.00th=[ 169], 99.50th=[ 199], 99.90th=[ 249], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 152, per=25.26%, avg=42.68, stdev=27.28, samples=273 iops : min= 1, max= 38, avg=10.00, stdev= 6.89, samples=273 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6296KiB/141204msec); 0 zone resets clat (msec): min=11, max=307, avg=55.47, stdev=35.92 lat (msec): min=11, max=307, avg=55.47, stdev=35.92 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 65], 80.00th=[ 80], 90.00th=[ 104], 95.00th=[ 123], | 99.00th=[ 184], 99.50th=[ 220], 99.90th=[ 292], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 118, per=25.24%, avg=44.67, stdev=24.57, samples=274 iops : min= 1, max= 29, avg=10.49, stdev= 6.19, samples=274 lat (msec) : 10=2.47%, 20=19.37%, 50=47.20%, 100=22.56%, 250=8.17% lat (msec) : 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=2.44%, ctx=4895, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182385: Sun Nov 16 19:14:33 2025 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5940KiB/141713msec) clat (msec): min=5, max=878, avg=35.68, stdev=38.06 lat (msec): min=5, max=878, avg=35.68, stdev=38.06 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 103], | 99.00th=[ 161], 99.50th=[ 176], 99.90th=[ 317], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 143, per=24.98%, avg=42.22, stdev=27.09, samples=273 iops : min= 1, max= 35, avg= 9.88, stdev= 6.82, samples=273 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6348KiB/141713msec); 0 zone resets clat (msec): min=10, max=287, avg=55.67, stdev=35.10 lat (msec): min=10, max=287, avg=55.67, stdev=35.10 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 54], | 70.00th=[ 65], 80.00th=[ 79], 90.00th=[ 103], 95.00th=[ 125], | 99.00th=[ 184], 99.50th=[ 211], 99.90th=[ 251], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 110, per=25.19%, avg=44.59, stdev=24.10, samples=276 iops : min= 1, max= 27, avg=10.47, stdev= 6.08, samples=276 lat (msec) : 10=2.15%, 20=19.43%, 50=47.04%, 100=23.27%, 250=7.98% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=2.48%, ctx=5000, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182386: Sun Nov 16 19:14:33 2025 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(6028KiB/141304msec) clat (msec): min=5, max=320, avg=35.60, stdev=32.77 lat (msec): min=5, max=320, avg=35.60, stdev=32.77 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 167], 99.50th=[ 205], 99.90th=[ 251], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 134, per=25.29%, avg=42.75, stdev=25.53, samples=274 iops : min= 1, max= 33, avg=10.01, stdev= 6.43, samples=274 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(6260KiB/141304msec); 0 zone resets clat (msec): min=8, max=906, avg=55.77, stdev=42.34 lat (msec): min=8, max=906, avg=55.77, stdev=42.34 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 63], 80.00th=[ 79], 90.00th=[ 105], 95.00th=[ 128], | 99.00th=[ 194], 99.50th=[ 228], 99.90th=[ 313], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=43.98, stdev=25.33, samples=276 iops : min= 1, max= 31, avg=10.32, stdev= 6.39, samples=276 lat (msec) : 10=2.21%, 20=18.42%, 50=49.61%, 100=21.48%, 250=8.07% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=2.39%, ctx=4880, 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=182387: Sun Nov 16 19:14:33 2025 read: IOPS=10, BW=42.7KiB/s (43.8kB/s)(6052KiB/141628msec) clat (msec): min=5, max=235, avg=34.74, stdev=30.29 lat (msec): min=5, max=235, avg=34.74, stdev=30.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 79], 95.00th=[ 103], | 99.00th=[ 144], 99.50th=[ 169], 99.90th=[ 226], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 7, max= 128, per=26.01%, avg=43.96, stdev=27.11, samples=268 iops : min= 1, max= 32, avg=10.31, stdev= 6.83, samples=268 write: IOPS=11, BW=44.0KiB/s (45.1kB/s)(6236KiB/141628msec); 0 zone resets clat (msec): min=8, max=913, avg=56.83, stdev=43.61 lat (msec): min=8, max=913, avg=56.83, stdev=43.61 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 52], | 70.00th=[ 64], 80.00th=[ 81], 90.00th=[ 110], 95.00th=[ 133], | 99.00th=[ 199], 99.50th=[ 218], 99.90th=[ 334], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 126, per=24.81%, avg=43.92, stdev=24.45, samples=276 iops : min= 1, max= 31, avg=10.29, stdev= 6.16, samples=276 lat (msec) : 10=2.41%, 20=19.43%, 50=48.08%, 100=21.00%, 250=8.95% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=2.39%, ctx=4921, 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=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=169KiB/s (174kB/s), 41.9KiB/s-42.7KiB/s (42.9kB/s-43.8kB/s), io=23.4MiB (24.6MB), run=141204-141713msec WRITE: bw=177KiB/s (182kB/s), 44.0KiB/s-44.8KiB/s (45.1kB/s-45.9kB/s), io=24.6MiB (25.7MB), run=141204-141713msec 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=182428: Sun Nov 16 19:15:11 2025 read: IOPS=12, BW=207KiB/s (212kB/s)(5920KiB/28580msec) clat (usec): min=96, max=171795, avg=41381.67, stdev=27167.87 lat (usec): min=96, max=171796, avg=41383.00, stdev=27167.88 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 200], 10.00th=[ 12387], 20.00th=[ 21890], | 30.00th=[ 26608], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 50594], 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[128451], 99.50th=[168821], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 62, max= 438, per=24.45%, avg=203.89, stdev=74.67, samples=56 iops : min= 3, max= 27, avg=11.96, stdev= 4.69, samples=56 write: IOPS=13, BW=223KiB/s (228kB/s)(6368KiB/28580msec); 0 zone resets clat (usec): min=1459, max=197390, avg=32553.16, stdev=32818.94 lat (usec): min=1460, max=197394, avg=32555.86, stdev=32818.84 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1778], 10.00th=[ 1975], 20.00th=[ 4146], | 30.00th=[ 10814], 40.00th=[ 16909], 50.00th=[ 23725], 60.00th=[ 31327], | 70.00th=[ 40109], 80.00th=[ 53740], 90.00th=[ 74974], 95.00th=[ 99091], | 99.00th=[156238], 99.50th=[177210], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 61, max= 444, per=25.20%, avg=221.02, stdev=83.87, samples=56 iops : min= 3, max= 27, avg=13.04, stdev= 5.28, samples=56 lat (usec) : 100=0.13%, 250=3.12%, 500=0.78% lat (msec) : 2=5.34%, 4=5.21%, 10=4.56%, 20=12.11%, 50=42.45% lat (msec) : 100=22.14%, 250=4.17% cpu : usr=0.06%, sys=8.09%, ctx=1776, 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=182430: Sun Nov 16 19:15:11 2025 read: IOPS=12, BW=200KiB/s (205kB/s)(5744KiB/28706msec) clat (usec): min=137, max=181762, avg=43938.42, stdev=29137.40 lat (usec): min=138, max=181763, avg=43943.00, stdev=29139.63 clat percentiles (usec): | 1.00th=[ 161], 5.00th=[ 241], 10.00th=[ 16319], 20.00th=[ 21890], | 30.00th=[ 27132], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45351], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[149947], 99.50th=[164627], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 61, max= 381, per=23.65%, avg=197.27, stdev=61.51, samples=56 iops : min= 3, max= 23, avg=11.55, stdev= 3.87, samples=56 write: IOPS=14, BW=228KiB/s (233kB/s)(6544KiB/28706msec); 0 zone resets clat (usec): min=1306, max=144592, avg=31310.74, stdev=29064.78 lat (usec): min=1308, max=144596, avg=31313.31, stdev=29064.88 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1778], 10.00th=[ 2212], 20.00th=[ 6521], | 30.00th=[ 10814], 40.00th=[ 17695], 50.00th=[ 22676], 60.00th=[ 30016], | 70.00th=[ 38536], 80.00th=[ 53216], 90.00th=[ 71828], 95.00th=[ 89654], | 99.00th=[121111], 99.50th=[131597], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 62, max= 384, per=25.35%, avg=222.36, stdev=83.39, samples=56 iops : min= 3, max= 24, avg=13.12, stdev= 5.27, samples=56 lat (usec) : 250=2.34%, 500=0.39%, 750=0.13% lat (msec) : 2=4.56%, 4=3.65%, 10=6.77%, 20=13.54%, 50=42.58% lat (msec) : 100=21.74%, 250=4.30% cpu : usr=0.10%, sys=7.71%, ctx=1820, 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=182432: Sun Nov 16 19:15:11 2025 read: IOPS=13, BW=222KiB/s (228kB/s)(6256KiB/28142msec) clat (usec): min=132, max=183279, avg=40820.20, stdev=28985.60 lat (usec): min=132, max=183281, avg=40824.61, stdev=28985.60 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 200], 10.00th=[ 7570], 20.00th=[ 20841], | 30.00th=[ 25297], 40.00th=[ 30540], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[156238], 99.50th=[175113], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 94, max= 412, per=26.56%, avg=221.55, stdev=70.46, samples=55 iops : min= 5, max= 25, avg=13.09, stdev= 4.48, samples=55 write: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28142msec); 0 zone resets clat (usec): min=1252, max=168950, avg=32098.64, stdev=30014.48 lat (usec): min=1254, max=168951, avg=32101.20, stdev=30014.64 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1795], 10.00th=[ 2278], 20.00th=[ 4490], | 30.00th=[ 10028], 40.00th=[ 16909], 50.00th=[ 24249], 60.00th=[ 33817], | 70.00th=[ 43254], 80.00th=[ 54264], 90.00th=[ 77071], 95.00th=[ 88605], | 99.00th=[131597], 99.50th=[154141], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 61, max= 444, per=24.02%, avg=210.64, stdev=84.27, samples=55 iops : min= 3, max= 27, avg=12.40, stdev= 5.30, samples=55 lat (usec) : 250=3.26%, 500=0.78%, 1000=0.52% lat (msec) : 2=4.04%, 4=5.34%, 10=6.12%, 20=11.72%, 50=42.06% lat (msec) : 100=22.40%, 250=3.78% cpu : usr=0.12%, sys=8.11%, ctx=1763, 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=182435: Sun Nov 16 19:15:11 2025 read: IOPS=13, BW=220KiB/s (226kB/s)(6032KiB/27371msec) clat (usec): min=137, max=182439, avg=39769.45, stdev=27181.81 lat (usec): min=138, max=182441, avg=39778.43, stdev=27184.84 clat percentiles (usec): | 1.00th=[ 159], 5.00th=[ 194], 10.00th=[ 10683], 20.00th=[ 21627], | 30.00th=[ 26346], 40.00th=[ 30802], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 46924], 80.00th=[ 54264], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[143655], 99.50th=[177210], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 378, per=26.35%, avg=219.80, stdev=73.83, samples=54 iops : min= 3, max= 23, avg=12.96, stdev= 4.73, samples=54 write: IOPS=14, BW=229KiB/s (234kB/s)(6256KiB/27371msec); 0 zone resets clat (usec): min=1237, max=163090, avg=31051.75, stdev=29394.13 lat (usec): min=1239, max=163091, avg=31054.12, stdev=29394.17 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1762], 10.00th=[ 2343], 20.00th=[ 5997], | 30.00th=[ 10683], 40.00th=[ 16909], 50.00th=[ 22676], 60.00th=[ 30540], | 70.00th=[ 38536], 80.00th=[ 51119], 90.00th=[ 68682], 95.00th=[ 90702], | 99.00th=[141558], 99.50th=[158335], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 572, per=26.09%, avg=228.78, stdev=89.08, samples=54 iops : min= 3, max= 35, avg=13.52, stdev= 5.67, samples=54 lat (usec) : 250=2.99%, 500=0.52%, 1000=0.13% lat (msec) : 2=4.69%, 4=3.91%, 10=6.90%, 20=13.54%, 50=43.62% lat (msec) : 100=20.83%, 250=2.86% cpu : usr=0.08%, sys=8.47%, ctx=1789, 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=834KiB/s (854kB/s), 200KiB/s-222KiB/s (205kB/s-228kB/s), io=23.4MiB (24.5MB), run=27371-28706msec WRITE: bw=878KiB/s (899kB/s), 214KiB/s-229KiB/s (219kB/s-234kB/s), io=24.6MiB (25.8MB), run=27371-28706msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182429: Sun Nov 16 19:15:21 2025 read: IOPS=9, BW=156KiB/s (160kB/s)(5920KiB/37870msec) clat (msec): min=7, max=220, avg=38.03, stdev=34.90 lat (msec): min=7, max=220, avg=38.03, stdev=34.90 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 82], 95.00th=[ 120], | 99.00th=[ 182], 99.50th=[ 207], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 448, per=24.26%, avg=152.81, stdev=92.66, samples=74 iops : min= 1, max= 28, avg= 8.84, stdev= 5.95, samples=74 write: IOPS=10, BW=168KiB/s (172kB/s)(6368KiB/37870msec); 0 zone resets clat (msec): min=11, max=338, avg=59.25, stdev=39.86 lat (msec): min=11, max=338, avg=59.26, stdev=39.86 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 66], 80.00th=[ 88], 90.00th=[ 118], 95.00th=[ 138], | 99.00th=[ 194], 99.50th=[ 257], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 544, per=25.12%, avg=166.57, stdev=96.60, samples=74 iops : min= 1, max= 34, avg= 9.69, stdev= 6.18, samples=74 lat (msec) : 10=1.43%, 20=18.36%, 50=48.18%, 100=20.96%, 250=10.81% lat (msec) : 500=0.26% cpu : usr=0.08%, sys=2.48%, ctx=1196, 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=182431: Sun Nov 16 19:15:21 2025 read: IOPS=9, BW=151KiB/s (155kB/s)(5744KiB/37940msec) clat (msec): min=7, max=211, avg=38.97, stdev=35.05 lat (msec): min=7, max=211, avg=38.97, stdev=35.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 88], 95.00th=[ 121], | 99.00th=[ 178], 99.50th=[ 203], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 30, max= 512, per=24.43%, avg=153.90, stdev=99.72, samples=72 iops : min= 1, max= 32, avg= 8.89, stdev= 6.36, samples=72 write: IOPS=10, BW=172KiB/s (177kB/s)(6544KiB/37940msec); 0 zone resets clat (msec): min=11, max=342, avg=57.99, stdev=39.30 lat (msec): min=11, max=342, avg=58.00, stdev=39.30 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 112], 95.00th=[ 133], | 99.00th=[ 186], 99.50th=[ 218], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 448, per=25.52%, avg=169.19, stdev=96.39, samples=74 iops : min= 1, max= 28, avg= 9.86, stdev= 6.17, samples=74 lat (msec) : 10=1.43%, 20=18.10%, 50=46.88%, 100=22.79%, 250=10.55% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=2.70%, ctx=1278, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182433: Sun Nov 16 19:15:21 2025 read: IOPS=10, BW=165KiB/s (169kB/s)(6256KiB/37986msec) clat (msec): min=5, max=198, avg=38.31, stdev=33.77 lat (msec): min=5, max=198, avg=38.31, stdev=33.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 88], 95.00th=[ 110], | 99.00th=[ 169], 99.50th=[ 180], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 31, max= 444, per=25.80%, avg=162.57, stdev=104.41, samples=74 iops : min= 1, max= 27, avg= 9.45, stdev= 6.64, samples=74 write: IOPS=9, BW=159KiB/s (163kB/s)(6032KiB/37986msec); 0 zone resets clat (msec): min=10, max=327, avg=60.48, stdev=41.24 lat (msec): min=10, max=327, avg=60.49, stdev=41.23 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 72], 80.00th=[ 89], 90.00th=[ 113], 95.00th=[ 144], | 99.00th=[ 199], 99.50th=[ 255], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 512, per=23.40%, avg=155.14, stdev=89.10, samples=74 iops : min= 1, max= 32, avg= 8.97, stdev= 5.71, samples=74 lat (msec) : 10=2.86%, 20=16.54%, 50=48.18%, 100=21.88%, 250=10.29% lat (msec) : 500=0.26% cpu : usr=0.10%, sys=2.47%, ctx=1198, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182434: Sun Nov 16 19:15:21 2025 read: IOPS=9, BW=159KiB/s (163kB/s)(6032KiB/37827msec) clat (msec): min=6, max=227, avg=37.99, stdev=33.96 lat (msec): min=6, max=227, avg=37.99, stdev=33.96 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 83], 95.00th=[ 113], | 99.00th=[ 194], 99.50th=[ 215], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 448, per=25.31%, avg=159.48, stdev=94.27, samples=73 iops : min= 1, max= 28, avg= 9.25, stdev= 6.06, samples=73 write: IOPS=10, BW=165KiB/s (169kB/s)(6256KiB/37827msec); 0 zone resets clat (msec): min=10, max=345, avg=59.89, stdev=41.75 lat (msec): min=10, max=345, avg=59.89, stdev=41.75 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 83], 90.00th=[ 111], 95.00th=[ 142], | 99.00th=[ 218], 99.50th=[ 257], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 448, per=24.67%, avg=163.54, stdev=92.87, samples=74 iops : min= 1, max= 28, avg= 9.51, stdev= 5.94, samples=74 lat (msec) : 10=1.04%, 20=17.58%, 50=47.14%, 100=23.44%, 250=10.55% lat (msec) : 500=0.26% cpu : usr=0.09%, sys=2.36%, ctx=1212, 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=631KiB/s (646kB/s), 151KiB/s-165KiB/s (155kB/s-169kB/s), io=23.4MiB (24.5MB), run=37827-37986msec WRITE: bw=663KiB/s (679kB/s), 159KiB/s-172KiB/s (163kB/s-177kB/s), io=24.6MiB (25.8MB), run=37827-37986msec 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=182447: Sun Nov 16 19:15:34 2025 read: IOPS=2, BW=2331KiB/s (2387kB/s)(7168KiB/3075msec) clat (msec): min=61, max=325, avg=143.70, stdev=104.89 lat (msec): min=61, max=325, avg=143.70, stdev=104.89 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 64], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 96], 60.00th=[ 107], | 70.00th=[ 107], 80.00th=[ 259], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 2043, max= 5785, per=77.15%, avg=3961.00, stdev=1872.77, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1665KiB/s (1705kB/s)(5120KiB/3075msec); 0 zone resets clat (msec): min=180, max=696, avg=400.61, stdev=211.21 lat (msec): min=180, max=696, avg=400.74, stdev=211.21 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1965, max= 2043, per=27.96%, avg=2009.50, stdev=33.92, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=33.33%, 250=25.00%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=7.68%, ctx=157, 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=182448: Sun Nov 16 19:15:34 2025 read: IOPS=0, BW=513KiB/s (526kB/s)(2048KiB/3989msec) clat (usec): min=90502, max=99602, avg=95052.31, stdev=6434.49 lat (usec): min=90503, max=99604, avg=95054.33, stdev=6435.53 clat percentiles (usec): | 1.00th=[90702], 5.00th=[90702], 10.00th=[90702], 20.00th=[90702], | 30.00th=[90702], 40.00th=[90702], 50.00th=[90702], 60.00th=[99091], | 70.00th=[99091], 80.00th=[99091], 90.00th=[99091], 95.00th=[99091], | 99.00th=[99091], 99.50th=[99091], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 1828, max= 1965, per=36.94%, avg=1896.50, stdev=96.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2567KiB/s (2629kB/s)(10.0MiB/3989msec); 0 zone resets clat (msec): min=88, max=1017, avg=375.08, stdev=326.84 lat (msec): min=88, max=1017, avg=375.18, stdev=326.83 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 148], 50.00th=[ 182], 60.00th=[ 251], | 70.00th=[ 338], 80.00th=[ 651], 90.00th=[ 793], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 2023, max= 4055, per=43.71%, avg=3141.60, stdev=1022.22, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.03%, sys=7.22%, ctx=94, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182449: Sun Nov 16 19:15:34 2025 read: IOPS=1, BW=1871KiB/s (1916kB/s)(6144KiB/3284msec) clat (msec): min=97, max=486, avg=271.90, stdev=152.88 lat (msec): min=97, max=486, avg=271.90, stdev=152.88 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 247], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 1359, max= 2035, per=36.64%, avg=1881.00, stdev=292.85, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1871KiB/s (1916kB/s)(6144KiB/3284msec); 0 zone resets clat (msec): min=119, max=675, avg=269.82, stdev=211.41 lat (msec): min=119, max=675, avg=269.92, stdev=211.42 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 192], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2007, max= 4079, per=37.67%, avg=2707.00, stdev=1188.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.12%, sys=4.63%, ctx=68, 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=182450: Sun Nov 16 19:15:34 2025 read: IOPS=1, BW=1467KiB/s (1503kB/s)(5120KiB/3489msec) clat (msec): min=106, max=488, avg=193.76, stdev=165.08 lat (msec): min=106, max=488, avg=193.76, stdev=165.08 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 125], 60.00th=[ 125], | 70.00th=[ 131], 80.00th=[ 131], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 3946, max= 4063, per=78.00%, avg=4004.50, stdev=82.73, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2054KiB/s (2104kB/s)(7168KiB/3489msec); 0 zone resets clat (msec): min=72, max=784, avg=359.41, stdev=259.45 lat (msec): min=72, max=786, avg=359.69, stdev=259.78 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 148], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 288], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 567], 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= 2007, max= 4260, per=38.50%, avg=2767.33, stdev=1292.76, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=9.12%, ctx=111, 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=5134KiB/s (5257kB/s), 513KiB/s-2331KiB/s (526kB/s-2387kB/s), io=20.0MiB (20.0MB), run=3075-3989msec WRITE: bw=7188KiB/s (7360kB/s), 1665KiB/s-2567KiB/s (1705kB/s-2629kB/s), io=28.0MiB (29.4MB), run=3075-3989msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182452: Sun Nov 16 19:15:34 2025 read: IOPS=2, BW=2527KiB/s (2587kB/s)(7168KiB/2837msec) clat (usec): min=567, max=293191, avg=186069.50, stdev=98386.29 lat (usec): min=568, max=293193, avg=186070.84, stdev=98386.27 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[129500], | 30.00th=[183501], 40.00th=[183501], 50.00th=[189793], 60.00th=[244319], | 70.00th=[244319], 80.00th=[258999], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 1841, max= 4055, per=52.41%, avg=2887.00, stdev=1145.23, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1805KiB/s (1848kB/s)(5120KiB/2837msec); 0 zone resets clat (msec): min=243, max=414, avg=306.61, stdev=71.52 lat (msec): min=243, max=414, avg=306.70, stdev=71.51 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 342], 80.00th=[ 342], 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= 1841, max= 4023, per=34.11%, avg=2630.33, stdev=1209.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=27.01%, ctx=339, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182453: Sun Nov 16 19:15:34 2025 read: IOPS=0, BW=551KiB/s (564kB/s)(2048KiB/3718msec) clat (msec): min=4, max=229, avg=117.10, stdev=158.76 lat (msec): min=4, max=229, avg=117.10, stdev=158.76 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 5], 40.00th=[ 5], 50.00th=[ 5], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 230], 90.00th=[ 230], 95.00th=[ 230], | 99.00th=[ 230], 99.50th=[ 230], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 1747, max= 1841, per=32.57%, avg=1794.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2754KiB/s (2820kB/s)(10.0MiB/3718msec); 0 zone resets clat (msec): min=115, max=679, avg=347.80, stdev=199.40 lat (msec): min=115, max=679, avg=347.91, stdev=199.41 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 251], 50.00th=[ 296], 60.00th=[ 330], | 70.00th=[ 397], 80.00th=[ 468], 90.00th=[ 642], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2011, max= 4039, per=38.31%, avg=2954.17, stdev=1028.09, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 10=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=19.16%, ctx=167, 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=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=182454: Sun Nov 16 19:15:34 2025 read: IOPS=2, BW=2058KiB/s (2107kB/s)(6144KiB/2986msec) clat (usec): min=641, max=159423, avg=30608.42, stdev=63591.95 lat (usec): min=641, max=159425, avg=30609.71, stdev=63592.04 clat percentiles (usec): | 1.00th=[ 644], 5.00th=[ 644], 10.00th=[ 644], 20.00th=[ 848], | 30.00th=[ 848], 40.00th=[ 963], 50.00th=[ 963], 60.00th=[ 1237], | 70.00th=[ 20579], 80.00th=[ 20579], 90.00th=[160433], 95.00th=[160433], | 99.00th=[160433], 99.50th=[160433], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 1841, max= 8047, per=89.76%, avg=4944.00, stdev=4388.30, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=2, BW=2058KiB/s (2107kB/s)(6144KiB/2986msec); 0 zone resets clat (msec): min=121, max=1216, avg=464.59, stdev=413.32 lat (msec): min=121, max=1216, avg=464.67, stdev=413.33 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 321], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1841, max= 4023, per=40.58%, avg=3129.33, stdev=1143.29, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 750=8.33%, 1000=16.67% lat (msec) : 2=8.33%, 50=8.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.03%, sys=18.26%, ctx=141, 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=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=182455: Sun Nov 16 19:15:34 2025 read: IOPS=1, BW=1529KiB/s (1566kB/s)(5120KiB/3348msec) clat (usec): min=489, max=344516, avg=110599.63, stdev=158322.65 lat (usec): min=490, max=344517, avg=110601.01, stdev=158322.92 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 619], 40.00th=[ 619], 50.00th=[ 660], 60.00th=[ 660], | 70.00th=[206570], 80.00th=[206570], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 7366, max= 7366, per=100.00%, avg=7366.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2141KiB/s (2192kB/s)(7168KiB/3348msec); 0 zone resets clat (msec): min=141, max=532, avg=396.55, stdev=142.78 lat (msec): min=141, max=532, avg=397.46, stdev=143.51 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 288], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 439], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 510], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 1899, max= 2027, per=25.74%, avg=1985.00, stdev=53.03, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=16.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=18.14%, ctx=180, 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=5508KiB/s (5641kB/s), 551KiB/s-2527KiB/s (564kB/s-2587kB/s), io=20.0MiB (20.0MB), run=2837-3718msec WRITE: bw=7712KiB/s (7897kB/s), 1805KiB/s-2754KiB/s (1848kB/s-2820kB/s), io=28.0MiB (29.4MB), run=2837-3718msec 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=182462: Sun Nov 16 19:15:49 2025 read: IOPS=0, BW=3836KiB/s (3928kB/s)(12.0MiB/3203msec) clat (msec): min=826, max=1287, avg=1014.35, stdev=242.14 lat (msec): min=826, max=1287, avg=1014.35, stdev=242.14 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8047, max= 8110, per=100.00%, avg=8078.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.03%, ctx=59, 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=182463: Sun Nov 16 19:15:49 2025 read: IOPS=0, BW=1170KiB/s (1198kB/s)(4096KiB/3501msec) clat (nsec): min=1729.1M, max=1729.1M, avg=1729085132.00, stdev= 0.00 lat (nsec): min=1729.1M, max=1729.1M, avg=1729088002.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1737], 5.00th=[ 1737], 10.00th=[ 1737], 20.00th=[ 1737], | 30.00th=[ 1737], 40.00th=[ 1737], 50.00th=[ 1737], 60.00th=[ 1737], | 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= 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=2340KiB/s (2396kB/s)(8192KiB/3501msec); 0 zone resets clat (msec): min=196, max=1397, avg=797.00, stdev=848.90 lat (msec): min=197, max=1405, avg=801.34, stdev=854.30 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.40%, ctx=61, 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=182464: Sun Nov 16 19:15:49 2025 write: IOPS=1, BW=5882KiB/s (6023kB/s)(12.0MiB/2089msec); 0 zone resets clat (msec): min=192, max=1360, avg=618.96, stdev=644.70 lat (msec): min=192, max=1371, avg=623.04, stdev=650.88 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.28%, ctx=44, 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=182465: Sun Nov 16 19:15:49 2025 write: IOPS=1, BW=4704KiB/s (4817kB/s)(12.0MiB/2612msec); 0 zone resets clat (msec): min=311, max=1419, avg=804.74, stdev=563.79 lat (msec): min=311, max=1419, avg=805.38, stdev=563.77 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 5688, max= 8159, per=73.98%, avg=6923.50, stdev=1747.26, 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=5.94%, ctx=64, 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=4680KiB/s (4792kB/s), 1170KiB/s-3836KiB/s (1198kB/s-3928kB/s), io=16.0MiB (16.8MB), run=3203-3501msec WRITE: bw=9360KiB/s (9584kB/s), 2340KiB/s-5882KiB/s (2396kB/s-6023kB/s), io=32.0MiB (33.6MB), run=2089-3501msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182467: Sun Nov 16 19:15:49 2025 read: IOPS=1, BW=4587KiB/s (4697kB/s)(12.0MiB/2679msec) clat (msec): min=782, max=928, avg=873.59, stdev=79.46 lat (msec): min=782, max=928, avg=873.59, stdev=79.46 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=16.92%, ctx=391, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182468: Sun Nov 16 19:15:49 2025 read: IOPS=0, BW=1567KiB/s (1605kB/s)(4096KiB/2614msec) clat (nsec): min=725398k, max=725398k, avg=725397923.00, stdev= 0.00 lat (nsec): min=725402k, max=725402k, avg=725401582.00, 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= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3134KiB/s (3209kB/s)(8192KiB/2614msec); 0 zone resets clat (msec): min=600, max=1050, avg=825.41, stdev=318.07 lat (msec): min=601, max=1050, avg=826.32, stdev=317.26 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 1053], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8110, max= 8110, per=78.06%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.11%, sys=8.38%, ctx=75, 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=182469: Sun Nov 16 19:15:49 2025 write: IOPS=0, BW=3896KiB/s (3990kB/s)(12.0MiB/3154msec); 0 zone resets clat (msec): min=287, max=1886, avg=1002.75, stdev=812.38 lat (msec): min=288, max=1886, avg=1003.24, stdev=812.39 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 7876, max= 8110, per=76.94%, avg=7993.00, stdev=165.46, 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=5.84%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182470: Sun Nov 16 19:15:49 2025 write: IOPS=1, BW=4699KiB/s (4812kB/s)(12.0MiB/2615msec); 0 zone resets clat (msec): min=508, max=1304, avg=805.77, stdev=434.19 lat (msec): min=509, max=1304, avg=806.35, stdev=434.12 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8031, max= 8110, per=77.68%, avg=8070.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.44%, ctx=44, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6116KiB/s (6262kB/s), 1567KiB/s-4587KiB/s (1605kB/s-4697kB/s), io=16.0MiB (16.8MB), run=2614-2679msec WRITE: bw=10.1MiB/s (10.6MB/s), 3134KiB/s-4699KiB/s (3209kB/s-4812kB/s), io=32.0MiB (33.6MB), run=2614-3154msec