== sanity test 398b: DIO and buffer IO race ============== 21:39:46 (1786066786) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.15104 s, 9.8 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=177510: Thu Aug 6 21:43:18 2026 read: IOPS=7, BW=30.8KiB/s (31.5kB/s)(5992KiB/194483msec) clat (usec): min=44, max=698631, avg=71832.78, stdev=47819.37 lat (usec): min=44, max=698632, avg=71840.59, stdev=47814.54 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 18482], 10.00th=[ 26870], 20.00th=[ 36963], | 30.00th=[ 46400], 40.00th=[ 53740], 50.00th=[ 63177], 60.00th=[ 72877], | 70.00th=[ 85459], 80.00th=[100140], 90.00th=[125305], 95.00th=[156238], | 99.00th=[231736], 99.50th=[261096], 99.90th=[434111], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 79, per=24.82%, avg=30.53, stdev=14.02, samples=376 iops : min= 1, max= 19, avg= 6.95, stdev= 3.53, samples=376 write: IOPS=8, BW=32.4KiB/s (33.1kB/s)(6296KiB/194483msec); 0 zone resets clat (usec): min=1120, max=434475, avg=54814.24, stdev=55327.65 lat (usec): min=1121, max=434478, avg=54823.89, stdev=55324.76 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 2343], 10.00th=[ 3687], 20.00th=[ 7963], | 30.00th=[ 14222], 40.00th=[ 27657], 50.00th=[ 39060], 60.00th=[ 53216], | 70.00th=[ 69731], 80.00th=[ 93848], 90.00th=[127402], 95.00th=[164627], | 99.00th=[235930], 99.50th=[258999], 99.90th=[408945], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 7, max= 125, per=25.48%, avg=32.87, stdev=18.46, samples=368 iops : min= 1, max= 31, avg= 7.54, stdev= 4.66, samples=368 lat (usec) : 50=0.07%, 100=1.46%, 250=0.16%, 500=0.03%, 750=0.03% lat (msec) : 2=2.02%, 4=3.71%, 10=6.80%, 20=6.54%, 50=25.91% lat (msec) : 100=34.41%, 250=18.20%, 500=0.62%, 750=0.03% cpu : usr=0.05%, sys=3.06%, ctx=6959, 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=177511: Thu Aug 6 21:43:18 2026 read: IOPS=7, BW=30.8KiB/s (31.6kB/s)(5940KiB/192627msec) clat (usec): min=47, max=464427, avg=73206.40, stdev=45520.21 lat (usec): min=48, max=464429, avg=73213.08, stdev=45519.68 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 21890], 10.00th=[ 29230], 20.00th=[ 39060], | 30.00th=[ 47449], 40.00th=[ 54789], 50.00th=[ 64750], 60.00th=[ 73925], | 70.00th=[ 85459], 80.00th=[102237], 90.00th=[129500], 95.00th=[152044], | 99.00th=[235930], 99.50th=[256902], 99.90th=[337642], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 7, max= 79, per=24.86%, avg=30.58, stdev=13.21, samples=374 iops : min= 1, max= 19, avg= 6.96, stdev= 3.33, samples=374 write: IOPS=8, BW=32.0KiB/s (33.7kB/s)(6348KiB/192627msec); 0 zone resets clat (usec): min=1172, max=663867, avg=52539.71, stdev=54650.35 lat (usec): min=1173, max=663868, avg=52550.12, stdev=54644.36 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2040], 10.00th=[ 3654], 20.00th=[ 7832], | 30.00th=[ 13173], 40.00th=[ 25822], 50.00th=[ 37487], 60.00th=[ 49546], | 70.00th=[ 65799], 80.00th=[ 89654], 90.00th=[126354], 95.00th=[158335], | 99.00th=[231736], 99.50th=[261096], 99.90th=[354419], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 7, max= 98, per=25.65%, avg=33.09, stdev=18.53, samples=370 iops : min= 1, max= 24, avg= 7.59, stdev= 4.68, samples=370 lat (usec) : 50=0.07%, 100=1.04%, 250=0.16%, 750=0.07%, 1000=0.03% lat (msec) : 2=2.44%, 4=3.35%, 10=7.19%, 20=5.86%, 50=27.05% lat (msec) : 100=34.41%, 250=17.61%, 500=0.68%, 750=0.03% cpu : usr=0.05%, sys=3.20%, ctx=6938, 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=177512: Thu Aug 6 21:43:18 2026 read: IOPS=7, BW=30.9KiB/s (31.7kB/s)(6028KiB/194863msec) clat (usec): min=44, max=430457, avg=70800.30, stdev=45072.66 lat (usec): min=44, max=430458, avg=70809.88, stdev=45064.30 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 19530], 10.00th=[ 26870], 20.00th=[ 35914], | 30.00th=[ 44303], 40.00th=[ 53216], 50.00th=[ 62653], 60.00th=[ 72877], | 70.00th=[ 84411], 80.00th=[ 99091], 90.00th=[123208], 95.00th=[154141], | 99.00th=[229639], 99.50th=[265290], 99.90th=[337642], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 79, per=24.99%, avg=30.74, stdev=14.78, samples=376 iops : min= 1, max= 19, avg= 7.00, stdev= 3.73, samples=376 write: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6260KiB/194863msec); 0 zone resets clat (usec): min=1113, max=718746, avg=55948.53, stdev=56956.78 lat (usec): min=1114, max=718748, avg=55954.04, stdev=56953.84 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2311], 10.00th=[ 4621], 20.00th=[ 8717], | 30.00th=[ 15664], 40.00th=[ 28967], 50.00th=[ 41157], 60.00th=[ 54789], | 70.00th=[ 69731], 80.00th=[ 93848], 90.00th=[130548], 95.00th=[160433], | 99.00th=[244319], 99.50th=[283116], 99.90th=[404751], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 84, per=24.92%, avg=32.15, stdev=16.47, samples=373 iops : min= 1, max= 21, avg= 7.35, stdev= 4.16, samples=373 lat (usec) : 50=0.03%, 100=1.24%, 250=0.20%, 500=0.07%, 750=0.03% lat (msec) : 2=2.25%, 4=2.34%, 10=7.10%, 20=6.32%, 50=27.15% lat (msec) : 100=34.83%, 250=17.68%, 500=0.75%, 750=0.03% cpu : usr=0.05%, sys=3.02%, ctx=6979, 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=177513: Thu Aug 6 21:43:18 2026 read: IOPS=7, BW=31.1KiB/s (31.9kB/s)(6052KiB/194363msec) clat (usec): min=46, max=673134, avg=72980.00, stdev=49196.70 lat (usec): min=48, max=673135, avg=72991.49, stdev=49200.43 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 21890], 10.00th=[ 28705], 20.00th=[ 38536], | 30.00th=[ 45876], 40.00th=[ 53740], 50.00th=[ 63177], 60.00th=[ 71828], | 70.00th=[ 85459], 80.00th=[102237], 90.00th=[127402], 95.00th=[158335], | 99.00th=[242222], 99.50th=[287310], 99.90th=[463471], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 7, max= 79, per=25.46%, avg=31.32, stdev=13.74, samples=372 iops : min= 1, max= 19, avg= 7.14, stdev= 3.46, samples=372 write: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6236KiB/194363msec); 0 zone resets clat (usec): min=1231, max=325691, avg=53526.02, stdev=52754.85 lat (usec): min=1232, max=325693, avg=53538.51, stdev=52749.98 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 2409], 10.00th=[ 3982], 20.00th=[ 8225], | 30.00th=[ 13960], 40.00th=[ 27132], 50.00th=[ 40109], 60.00th=[ 51643], | 70.00th=[ 67634], 80.00th=[ 89654], 90.00th=[127402], 95.00th=[158335], | 99.00th=[231736], 99.50th=[261096], 99.90th=[312476], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 108, per=25.08%, avg=32.35, stdev=16.81, samples=371 iops : min= 1, max= 27, avg= 7.40, stdev= 4.25, samples=371 lat (usec) : 50=0.07%, 100=1.01%, 250=0.23%, 500=0.10%, 1000=0.03% lat (msec) : 2=1.69%, 4=3.48%, 10=7.16%, 20=6.41%, 50=27.12% lat (msec) : 100=33.63%, 250=18.33%, 500=0.72%, 750=0.03% cpu : usr=0.05%, sys=3.00%, ctx=6968, 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=123KiB/s (126kB/s), 30.8KiB/s-31.1KiB/s (31.5kB/s-31.9kB/s), io=23.4MiB (24.6MB), run=192627-194863msec WRITE: bw=129KiB/s (132kB/s), 32.1KiB/s-32.0KiB/s (32.9kB/s-33.7kB/s), io=24.6MiB (25.7MB), run=192627-194863msec rand-rw: (groupid=0, jobs=1): err= 0: pid=177506: Thu Aug 6 21:44:23 2026 read: IOPS=5, BW=23.3KiB/s (23.9kB/s)(5992KiB/257160msec) clat (msec): min=8, max=702, avg=65.33, stdev=57.22 lat (msec): min=8, max=702, avg=65.35, stdev=57.21 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 47], 60.00th=[ 57], | 70.00th=[ 68], 80.00th=[ 92], 90.00th=[ 136], 95.00th=[ 184], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 405], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 116, per=26.53%, avg=24.41, stdev=17.14, samples=471 iops : min= 1, max= 29, avg= 5.42, stdev= 4.32, samples=471 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6296KiB/257160msec); 0 zone resets clat (msec): min=20, max=712, avg=100.82, stdev=67.60 lat (msec): min=20, max=712, avg=100.83, stdev=67.60 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 35], 10.00th=[ 41], 20.00th=[ 50], | 30.00th=[ 59], 40.00th=[ 68], 50.00th=[ 80], 60.00th=[ 96], | 70.00th=[ 117], 80.00th=[ 144], 90.00th=[ 190], 95.00th=[ 230], | 99.00th=[ 347], 99.50th=[ 393], 99.90th=[ 558], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 79, per=25.94%, avg=24.90, stdev=14.63, samples=485 iops : min= 1, max= 19, avg= 5.54, stdev= 3.69, samples=485 lat (msec) : 10=0.23%, 20=4.20%, 50=31.84%, 100=35.74%, 250=25.29% lat (msec) : 500=2.60%, 750=0.10% cpu : usr=0.04%, sys=1.38%, ctx=5130, 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=177507: Thu Aug 6 21:44:23 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5940KiB/259516msec) clat (msec): min=8, max=687, avg=67.35, stdev=60.63 lat (msec): min=8, max=687, avg=67.35, stdev=60.63 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 57], | 70.00th=[ 71], 80.00th=[ 99], 90.00th=[ 142], 95.00th=[ 199], | 99.00th=[ 284], 99.50th=[ 338], 99.90th=[ 506], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 87, per=26.52%, avg=24.40, stdev=16.55, samples=467 iops : min= 1, max= 21, avg= 5.42, stdev= 4.18, samples=467 write: IOPS=6, BW=24.5KiB/s (25.0kB/s)(6348KiB/259516msec); 0 zone resets clat (msec): min=19, max=548, avg=100.18, stdev=66.72 lat (msec): min=19, max=548, avg=100.18, stdev=66.72 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 35], 10.00th=[ 41], 20.00th=[ 49], | 30.00th=[ 58], 40.00th=[ 67], 50.00th=[ 80], 60.00th=[ 97], | 70.00th=[ 117], 80.00th=[ 144], 90.00th=[ 182], 95.00th=[ 234], | 99.00th=[ 330], 99.50th=[ 376], 99.90th=[ 502], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 87, per=26.06%, avg=25.01, stdev=14.85, samples=487 iops : min= 1, max= 21, avg= 5.57, stdev= 3.75, samples=487 lat (msec) : 10=0.13%, 20=4.33%, 50=32.98%, 100=33.40%, 250=26.43% lat (msec) : 500=2.60%, 750=0.13% cpu : usr=0.03%, sys=1.38%, ctx=5237, 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=177508: Thu Aug 6 21:44:23 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6028KiB/260169msec) clat (msec): min=8, max=430, avg=68.52, stdev=56.88 lat (msec): min=8, max=430, avg=68.53, stdev=56.87 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 100], 90.00th=[ 146], 95.00th=[ 186], | 99.00th=[ 271], 99.50th=[ 321], 99.90th=[ 418], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 7, max= 87, per=26.10%, avg=24.01, stdev=16.29, samples=481 iops : min= 1, max= 21, avg= 5.32, stdev= 4.10, samples=481 write: IOPS=6, BW=24.1KiB/s (24.6kB/s)(6260KiB/260169msec); 0 zone resets clat (msec): min=18, max=706, avg=99.94, stdev=71.19 lat (msec): min=18, max=706, avg=99.95, stdev=71.19 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 35], 10.00th=[ 42], 20.00th=[ 49], | 30.00th=[ 58], 40.00th=[ 67], 50.00th=[ 77], 60.00th=[ 89], | 70.00th=[ 112], 80.00th=[ 142], 90.00th=[ 188], 95.00th=[ 239], | 99.00th=[ 368], 99.50th=[ 443], 99.90th=[ 584], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 95, per=25.42%, avg=24.40, stdev=14.93, samples=491 iops : min= 1, max= 23, avg= 5.41, stdev= 3.77, samples=491 lat (msec) : 10=0.03%, 20=3.91%, 50=31.77%, 100=37.01%, 250=24.54% lat (msec) : 500=2.60%, 750=0.13% cpu : usr=0.04%, sys=1.43%, ctx=5333, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=177509: Thu Aug 6 21:44:23 2026 read: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6052KiB/260168msec) clat (msec): min=7, max=439, avg=68.55, stdev=60.63 lat (msec): min=7, max=439, avg=68.55, stdev=60.63 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 73], 80.00th=[ 96], 90.00th=[ 155], 95.00th=[ 197], | 99.00th=[ 296], 99.50th=[ 342], 99.90th=[ 430], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 116, per=26.99%, avg=24.83, stdev=16.59, samples=467 iops : min= 1, max= 29, avg= 5.53, stdev= 4.19, samples=467 write: IOPS=5, BW=23.0KiB/s (24.5kB/s)(6236KiB/260168msec); 0 zone resets clat (msec): min=18, max=706, avg=100.03, stdev=66.46 lat (msec): min=18, max=706, avg=100.04, stdev=66.46 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 37], 10.00th=[ 42], 20.00th=[ 51], | 30.00th=[ 60], 40.00th=[ 68], 50.00th=[ 79], 60.00th=[ 93], | 70.00th=[ 116], 80.00th=[ 144], 90.00th=[ 186], 95.00th=[ 228], | 99.00th=[ 338], 99.50th=[ 397], 99.90th=[ 518], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 77, per=25.64%, avg=24.62, stdev=14.53, samples=485 iops : min= 1, max= 19, avg= 5.47, stdev= 3.66, samples=485 lat (msec) : 10=0.23%, 20=3.65%, 50=32.16%, 100=36.52%, 250=24.71% lat (msec) : 500=2.67%, 750=0.07% cpu : usr=0.03%, sys=1.32%, ctx=5118, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=92.3KiB/s (94.5kB/s), 22.9KiB/s-23.3KiB/s (23.4kB/s-23.9kB/s), io=23.4MiB (24.6MB), run=257160-260169msec WRITE: bw=96.6KiB/s (98.9kB/s), 23.0KiB/s-24.5KiB/s (24.5kB/s-25.1kB/s), io=24.6MiB (25.7MB), run=257160-260169msec 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=177565: Thu Aug 6 21:45:21 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(5920KiB/44795msec) clat (usec): min=44, max=383590, avg=66478.90, stdev=46468.99 lat (usec): min=44, max=383591, avg=66489.58, stdev=46455.99 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 100], 20.00th=[ 31851], | 30.00th=[ 42206], 40.00th=[ 50594], 50.00th=[ 60031], 60.00th=[ 71828], | 70.00th=[ 82314], 80.00th=[ 95945], 90.00th=[124257], 95.00th=[147850], | 99.00th=[187696], 99.50th=[270533], 99.90th=[383779], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 31, max= 319, per=25.89%, avg=131.51, stdev=54.59, samples=86 iops : min= 1, max= 19, avg= 7.44, stdev= 3.47, samples=86 write: IOPS=8, BW=142KiB/s (146kB/s)(6368KiB/44795msec); 0 zone resets clat (usec): min=1701, max=259542, avg=50014.13, stdev=46592.93 lat (usec): min=1703, max=259544, avg=50017.88, stdev=46592.92 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3097], 10.00th=[ 5407], 20.00th=[ 9241], | 30.00th=[ 14746], 40.00th=[ 25035], 50.00th=[ 40109], 60.00th=[ 51119], | 70.00th=[ 64750], 80.00th=[ 80217], 90.00th=[114820], 95.00th=[135267], | 99.00th=[212861], 99.50th=[233833], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 381, per=26.40%, avg=140.95, stdev=69.73, samples=87 iops : min= 1, max= 23, avg= 8.03, stdev= 4.41, samples=87 lat (usec) : 50=0.52%, 100=4.30%, 250=0.52%, 500=0.26% lat (msec) : 2=0.65%, 4=3.39%, 10=7.68%, 20=6.51%, 50=25.65% lat (msec) : 100=34.64%, 250=15.49%, 500=0.39% cpu : usr=0.05%, sys=3.45%, ctx=1726, 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=177566: Thu Aug 6 21:45:21 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(5744KiB/45287msec) clat (usec): min=53, max=282468, avg=70909.99, stdev=46461.82 lat (usec): min=54, max=282468, avg=70920.91, stdev=46447.60 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 74], 10.00th=[ 22938], 20.00th=[ 34866], | 30.00th=[ 45876], 40.00th=[ 53216], 50.00th=[ 62129], 60.00th=[ 73925], | 70.00th=[ 86508], 80.00th=[106431], 90.00th=[131597], 95.00th=[158335], | 99.00th=[225444], 99.50th=[231736], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 30, max= 287, per=24.83%, avg=126.14, stdev=60.30, samples=88 iops : min= 1, max= 17, avg= 7.10, stdev= 3.82, samples=88 write: IOPS=9, BW=145KiB/s (148kB/s)(6544KiB/45287msec); 0 zone resets clat (usec): min=1849, max=284646, avg=47871.77, stdev=47277.18 lat (usec): min=1851, max=284649, avg=47874.09, stdev=47277.23 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 14], 40.00th=[ 22], 50.00th=[ 33], 60.00th=[ 46], | 70.00th=[ 62], 80.00th=[ 82], 90.00th=[ 114], 95.00th=[ 142], | 99.00th=[ 190], 99.50th=[ 215], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 30, max= 477, per=27.47%, avg=146.71, stdev=85.37, samples=86 iops : min= 1, max= 29, avg= 8.41, stdev= 5.38, samples=86 lat (usec) : 100=3.12%, 250=0.39%, 750=0.13% lat (msec) : 2=0.13%, 4=3.39%, 10=8.85%, 20=9.51%, 50=24.48% lat (msec) : 100=31.90%, 250=17.71%, 500=0.39% cpu : usr=0.04%, sys=3.68%, ctx=1811, 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=177567: Thu Aug 6 21:45:21 2026 read: IOPS=8, BW=133KiB/s (136kB/s)(6256KiB/47109msec) clat (usec): min=52, max=267094, avg=69432.23, stdev=45072.74 lat (usec): min=53, max=267095, avg=69434.80, stdev=45072.54 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 84], 10.00th=[ 23987], 20.00th=[ 33817], | 30.00th=[ 44303], 40.00th=[ 50594], 50.00th=[ 62129], 60.00th=[ 71828], | 70.00th=[ 84411], 80.00th=[ 98042], 90.00th=[127402], 95.00th=[156238], | 99.00th=[238027], 99.50th=[258999], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 29, max= 351, per=26.49%, avg=134.57, stdev=63.97, samples=91 iops : min= 1, max= 21, avg= 7.63, stdev= 4.05, samples=91 write: IOPS=8, BW=128KiB/s (131kB/s)(6032KiB/47109msec); 0 zone resets clat (usec): min=1685, max=294746, avg=52347.25, stdev=51270.70 lat (usec): min=1688, max=294747, avg=52349.66, stdev=51270.77 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 3228], 10.00th=[ 4883], 20.00th=[ 8848], | 30.00th=[ 15401], 40.00th=[ 25297], 50.00th=[ 36439], 60.00th=[ 50070], | 70.00th=[ 65274], 80.00th=[ 88605], 90.00th=[123208], 95.00th=[156238], | 99.00th=[242222], 99.50th=[274727], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 28, max= 383, per=23.98%, avg=128.07, stdev=67.52, samples=91 iops : min= 1, max= 23, avg= 7.22, stdev= 4.27, samples=91 lat (usec) : 100=2.60%, 250=0.13% lat (msec) : 2=0.78%, 4=3.52%, 10=7.42%, 20=6.38%, 50=28.39% lat (msec) : 100=33.07%, 250=17.06%, 500=0.65% cpu : usr=0.05%, sys=3.56%, ctx=1866, 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=177568: Thu Aug 6 21:45:21 2026 read: IOPS=8, BW=128KiB/s (131kB/s)(6032KiB/47054msec) clat (usec): min=38, max=260943, avg=68747.15, stdev=47860.14 lat (usec): min=38, max=260943, avg=68752.39, stdev=47857.64 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 102], 20.00th=[ 33162], | 30.00th=[ 40109], 40.00th=[ 49021], 50.00th=[ 62653], 60.00th=[ 73925], | 70.00th=[ 86508], 80.00th=[100140], 90.00th=[135267], 95.00th=[147850], | 99.00th=[214959], 99.50th=[250610], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 28, max= 347, per=25.36%, avg=128.82, stdev=69.30, samples=91 iops : min= 1, max= 21, avg= 7.26, stdev= 4.36, samples=91 write: IOPS=8, BW=133KiB/s (136kB/s)(6256KiB/47054msec); 0 zone resets clat (usec): min=1691, max=350196, avg=53723.62, stdev=57644.37 lat (usec): min=1692, max=350198, avg=53746.36, stdev=57645.42 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 3523], 10.00th=[ 4948], 20.00th=[ 8356], | 30.00th=[ 12125], 40.00th=[ 21103], 50.00th=[ 34866], 60.00th=[ 50070], | 70.00th=[ 64750], 80.00th=[ 87557], 90.00th=[129500], 95.00th=[166724], | 99.00th=[295699], 99.50th=[346031], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 30, max= 378, per=25.09%, avg=133.97, stdev=78.21, samples=91 iops : min= 1, max= 23, avg= 7.58, stdev= 4.95, samples=91 lat (usec) : 50=0.39%, 100=4.43%, 250=0.39%, 500=0.39% lat (msec) : 2=0.78%, 4=2.08%, 10=9.51%, 20=8.20%, 50=24.09% lat (msec) : 100=31.51%, 250=17.45%, 500=0.78% cpu : usr=0.04%, sys=3.38%, ctx=1769, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=508KiB/s (521kB/s), 127KiB/s-133KiB/s (130kB/s-136kB/s), io=23.4MiB (24.5MB), run=44795-47109msec WRITE: bw=535KiB/s (548kB/s), 128KiB/s-145KiB/s (131kB/s-148kB/s), io=24.6MiB (25.8MB), run=44795-47109msec rand-rw: (groupid=0, jobs=1): err= 0: pid=177570: Thu Aug 6 21:45:35 2026 read: IOPS=6, BW=96.3KiB/s (98.6kB/s)(5920KiB/61476msec) clat (msec): min=9, max=424, avg=66.86, stdev=61.59 lat (msec): min=9, max=424, avg=66.86, stdev=61.59 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 70], 80.00th=[ 95], 90.00th=[ 148], 95.00th=[ 205], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 29, max= 344, per=26.18%, avg=101.57, stdev=69.18, samples=112 iops : min= 1, max= 21, avg= 5.54, stdev= 4.40, samples=112 write: IOPS=6, BW=104KiB/s (106kB/s)(6368KiB/61476msec); 0 zone resets clat (msec): min=20, max=456, avg=92.01, stdev=65.01 lat (msec): min=20, max=456, avg=92.02, stdev=65.00 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 31], 10.00th=[ 36], 20.00th=[ 45], | 30.00th=[ 53], 40.00th=[ 61], 50.00th=[ 70], 60.00th=[ 84], | 70.00th=[ 104], 80.00th=[ 134], 90.00th=[ 180], 95.00th=[ 215], | 99.00th=[ 355], 99.50th=[ 409], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 24, max= 351, per=25.81%, avg=105.56, stdev=67.61, samples=117 iops : min= 1, max= 21, avg= 5.79, stdev= 4.30, samples=117 lat (msec) : 10=0.13%, 20=5.34%, 50=36.20%, 100=33.07%, 250=22.27% lat (msec) : 500=2.99% cpu : usr=0.03%, sys=1.52%, ctx=1265, 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=177571: Thu Aug 6 21:45:35 2026 read: IOPS=5, BW=93.3KiB/s (95.5kB/s)(5744KiB/61582msec) clat (msec): min=9, max=415, avg=63.52, stdev=59.48 lat (msec): min=9, max=415, avg=63.52, stdev=59.48 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 24], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 68], 80.00th=[ 99], 90.00th=[ 136], 95.00th=[ 199], | 99.00th=[ 271], 99.50th=[ 355], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 24, max= 346, per=25.69%, avg=99.68, stdev=74.11, samples=111 iops : min= 1, max= 21, avg= 5.41, stdev= 4.70, samples=111 write: IOPS=6, BW=106KiB/s (109kB/s)(6544KiB/61582msec); 0 zone resets clat (msec): min=24, max=464, avg=94.44, stdev=64.97 lat (msec): min=24, max=464, avg=94.45, stdev=64.96 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 31], 10.00th=[ 35], 20.00th=[ 45], | 30.00th=[ 53], 40.00th=[ 62], 50.00th=[ 74], 60.00th=[ 89], | 70.00th=[ 110], 80.00th=[ 136], 90.00th=[ 190], 95.00th=[ 226], | 99.00th=[ 296], 99.50th=[ 355], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 24, max= 319, per=26.40%, avg=107.97, stdev=68.33, samples=116 iops : min= 1, max= 19, avg= 5.95, stdev= 4.34, samples=116 lat (msec) : 10=0.13%, 20=6.64%, 50=34.77%, 100=32.16%, 250=23.83% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.40%, ctx=1270, 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=177572: Thu Aug 6 21:45:35 2026 read: IOPS=6, BW=102KiB/s (105kB/s)(6256KiB/61209msec) clat (msec): min=10, max=337, avg=62.13, stdev=52.75 lat (msec): min=10, max=337, avg=62.13, stdev=52.75 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 20], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 70], 80.00th=[ 92], 90.00th=[ 128], 95.00th=[ 165], | 99.00th=[ 251], 99.50th=[ 313], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 416, per=28.28%, avg=109.72, stdev=75.68, samples=112 iops : min= 1, max= 26, avg= 6.04, stdev= 4.84, samples=112 write: IOPS=6, BW=98.5KiB/s (101kB/s)(6032KiB/61209msec); 0 zone resets clat (msec): min=16, max=368, avg=97.63, stdev=68.83 lat (msec): min=16, max=368, avg=97.65, stdev=68.84 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 29], 10.00th=[ 35], 20.00th=[ 44], | 30.00th=[ 52], 40.00th=[ 59], 50.00th=[ 74], 60.00th=[ 95], | 70.00th=[ 114], 80.00th=[ 150], 90.00th=[ 190], 95.00th=[ 247], | 99.00th=[ 326], 99.50th=[ 363], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 29, max= 348, per=24.54%, avg=100.35, stdev=65.86, samples=117 iops : min= 1, max= 21, avg= 5.46, stdev= 4.19, samples=117 lat (msec) : 20=5.73%, 50=37.50%, 100=29.82%, 250=24.35%, 500=2.60% cpu : usr=0.04%, sys=1.30%, ctx=1237, 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=177573: Thu Aug 6 21:45:35 2026 read: IOPS=6, BW=98.6KiB/s (101kB/s)(6032KiB/61173msec) clat (msec): min=10, max=362, avg=65.26, stdev=56.16 lat (msec): min=10, max=362, avg=65.27, stdev=56.17 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 25], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 54], | 70.00th=[ 69], 80.00th=[ 97], 90.00th=[ 150], 95.00th=[ 186], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 30, max= 319, per=28.00%, avg=108.64, stdev=73.47, samples=108 iops : min= 1, max= 19, avg= 5.98, stdev= 4.68, samples=108 write: IOPS=6, BW=102KiB/s (105kB/s)(6256KiB/61173msec); 0 zone resets clat (msec): min=15, max=455, avg=93.26, stdev=70.42 lat (msec): min=15, max=455, avg=93.26, stdev=70.42 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 49], 40.00th=[ 57], 50.00th=[ 69], 60.00th=[ 82], | 70.00th=[ 106], 80.00th=[ 130], 90.00th=[ 194], 95.00th=[ 253], | 99.00th=[ 359], 99.50th=[ 397], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 29, max= 377, per=25.43%, avg=103.99, stdev=72.64, samples=118 iops : min= 1, max= 23, avg= 5.69, stdev= 4.64, samples=118 lat (msec) : 20=5.73%, 50=37.50%, 100=30.34%, 250=23.18%, 500=3.26% cpu : usr=0.04%, sys=1.43%, ctx=1266, 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=389KiB/s (398kB/s), 93.3KiB/s-102KiB/s (95.5kB/s-105kB/s), io=23.4MiB (24.5MB), run=61173-61582msec WRITE: bw=409KiB/s (419kB/s), 98.5KiB/s-106KiB/s (101kB/s-109kB/s), io=24.6MiB (25.8MB), run=61173-61582msec 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=177589: Thu Aug 6 21:45:50 2026 read: IOPS=1, BW=1462KiB/s (1497kB/s)(7168KiB/4904msec) clat (msec): min=185, max=543, avg=322.47, stdev=117.98 lat (msec): min=185, max=543, avg=322.48, stdev=117.98 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 226], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 388], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1921, max= 4079, per=64.65%, avg=2404.40, stdev=936.96, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1044KiB/s (1069kB/s)(5120KiB/4904msec); 0 zone resets clat (msec): min=236, max=820, avg=469.09, stdev=222.26 lat (msec): min=236, max=820, avg=469.43, stdev=222.08 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1744, max= 2027, per=37.28%, avg=1941.00, stdev=114.73, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=11.07%, ctx=296, 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=177592: Thu Aug 6 21:45:50 2026 read: IOPS=0, BW=384KiB/s (394kB/s)(2048KiB/5329msec) clat (msec): min=191, max=566, avg=379.21, stdev=265.21 lat (msec): min=191, max=566, avg=379.21, stdev=265.21 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=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1471, max= 2043, per=47.24%, avg=1757.00, stdev=404.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1922KiB/s (1968kB/s)(10.0MiB/5329msec); 0 zone resets clat (msec): min=131, max=956, avg=417.57, stdev=262.93 lat (msec): min=132, max=956, avg=417.77, stdev=262.89 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 186], 40.00th=[ 211], 50.00th=[ 426], 60.00th=[ 443], | 70.00th=[ 451], 80.00th=[ 558], 90.00th=[ 659], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1793, max= 4031, per=56.09%, avg=2920.50, stdev=1137.20, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=13.83%, ctx=166, 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=177595: Thu Aug 6 21:45:50 2026 read: IOPS=1, BW=1284KiB/s (1315kB/s)(6144KiB/4784msec) clat (usec): min=1252, max=1097.1k, avg=359564.43, stdev=401820.02 lat (usec): min=1254, max=1097.1k, avg=359565.94, stdev=401819.82 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1254], 10.00th=[ 1254], | 20.00th=[ 1467], 30.00th=[ 1467], 40.00th=[ 295699], | 50.00th=[ 295699], 60.00th=[ 350225], 70.00th=[ 408945], | 80.00th=[ 408945], 90.00th=[1098908], 95.00th=[1098908], | 99.00th=[1098908], 99.50th=[1098908], 99.90th=[1098908], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 1793, max= 3878, per=64.68%, avg=2405.50, stdev=986.07, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1284KiB/s (1315kB/s)(6144KiB/4784msec); 0 zone resets clat (msec): min=170, max=785, avg=421.89, stdev=228.86 lat (msec): min=170, max=785, avg=421.99, stdev=228.89 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 409], | 70.00th=[ 592], 80.00th=[ 592], 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= 1361, max= 2015, per=35.24%, avg=1835.00, stdev=267.37, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=16.67%, 250=8.33%, 500=50.00%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.10%, sys=11.50%, ctx=259, 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=177596: Thu Aug 6 21:45:50 2026 read: IOPS=0, BW=930KiB/s (952kB/s)(5120KiB/5506msec) clat (usec): min=773, max=107703, avg=22591.26, stdev=47583.95 lat (usec): min=787, max=107703, avg=22594.79, stdev=47582.26 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 775], 10.00th=[ 775], 20.00th=[ 775], | 30.00th=[ 807], 40.00th=[ 807], 50.00th=[ 1237], 60.00th=[ 1237], | 70.00th=[ 2442], 80.00th=[ 2442], 90.00th=[107480], 95.00th=[107480], | 99.00th=[107480], 99.50th=[107480], 99.90th=[107480], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 2043, max= 5818, per=100.00%, avg=3930.50, stdev=2669.33, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1302KiB/s (1333kB/s)(7168KiB/5506msec); 0 zone resets clat (msec): min=134, max=1025, avg=721.44, stdev=307.69 lat (msec): min=134, max=1025, avg=722.46, stdev=307.58 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 550], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 785], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 978], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1793, max= 2043, per=37.78%, avg=1967.00, stdev=95.53, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 1000=16.67% lat (msec) : 2=8.33%, 4=8.33%, 250=16.67%, 750=16.67%, 1000=25.00% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.85%, ctx=157, 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=3720KiB/s (3809kB/s), 384KiB/s-1462KiB/s (394kB/s-1497kB/s), io=20.0MiB (20.0MB), run=4784-5506msec WRITE: bw=5207KiB/s (5332kB/s), 1044KiB/s-1922KiB/s (1069kB/s-1968kB/s), io=28.0MiB (29.4MB), run=4784-5506msec rand-rw: (groupid=0, jobs=1): err= 0: pid=177590: Thu Aug 6 21:45:50 2026 read: IOPS=1, BW=1192KiB/s (1221kB/s)(7168KiB/6012msec) clat (msec): min=112, max=484, avg=283.32, stdev=147.41 lat (msec): min=112, max=484, avg=283.32, stdev=147.41 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 142], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 251], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 468], 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= 1924, max= 4079, per=73.62%, avg=2392.80, stdev=943.33, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=852KiB/s (872kB/s)(5120KiB/6012msec); 0 zone resets clat (msec): min=458, max=969, avg=697.63, stdev=186.31 lat (msec): min=458, max=970, avg=698.08, stdev=186.77 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1838, max= 2019, per=42.55%, avg=1936.25, stdev=85.69, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=3.93%, ctx=115, 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=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=177591: Thu Aug 6 21:45:50 2026 read: IOPS=0, BW=325KiB/s (333kB/s)(2048KiB/6301msec) clat (msec): min=334, max=472, avg=403.44, stdev=97.59 lat (msec): min=334, max=472, avg=403.45, stdev=97.59 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1950, max= 1992, per=60.65%, avg=1971.00, stdev=29.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1625KiB/s (1664kB/s)(10.0MiB/6301msec); 0 zone resets clat (msec): min=75, max=1303, avg=516.23, stdev=480.14 lat (msec): min=75, max=1303, avg=516.65, stdev=480.54 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 78], | 30.00th=[ 86], 40.00th=[ 146], 50.00th=[ 197], 60.00th=[ 439], | 70.00th=[ 768], 80.00th=[ 919], 90.00th=[ 1150], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 1838, max= 8159, per=78.74%, avg=3582.60, stdev=2713.04, samples=5 iops : min= 1, max= 7, avg= 2.60, stdev= 2.61, samples=5 lat (msec) : 100=25.00%, 250=16.67%, 500=25.00%, 1000=16.67%, 2000=16.67% cpu : usr=0.00%, sys=4.03%, ctx=96, 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=177593: Thu Aug 6 21:45:50 2026 read: IOPS=1, BW=1053KiB/s (1078kB/s)(6144KiB/5834msec) clat (msec): min=133, max=832, avg=445.51, stdev=284.75 lat (msec): min=133, max=832, avg=445.51, stdev=284.75 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 575], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1885, max= 2027, per=60.37%, avg=1962.00, stdev=71.71, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1053KiB/s (1078kB/s)(6144KiB/5834msec); 0 zone resets clat (msec): min=154, max=724, avg=502.09, stdev=209.65 lat (msec): min=154, max=724, avg=503.84, stdev=208.45 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 575], | 70.00th=[ 667], 80.00th=[ 667], 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= 1387, max= 2039, per=41.56%, avg=1891.20, stdev=282.60, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=16.67%, 750=50.00%, 1000=8.33% cpu : usr=0.00%, sys=4.41%, ctx=124, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=177594: Thu Aug 6 21:45:50 2026 read: IOPS=1, BW=1050KiB/s (1075kB/s)(5120KiB/4876msec) clat (msec): min=92, max=329, avg=207.73, stdev=94.29 lat (msec): min=92, max=329, avg=207.73, stdev=94.29 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2019, max= 6000, per=100.00%, avg=4009.50, stdev=2814.99, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1470KiB/s (1505kB/s)(7168KiB/4876msec); 0 zone resets clat (msec): min=182, max=1273, avg=539.67, stdev=404.08 lat (msec): min=182, max=1274, avg=540.29, stdev=403.80 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 192], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 368], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 793], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1551, max= 4079, per=58.25%, avg=2650.40, stdev=1142.39, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.04%, sys=2.69%, ctx=92, 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=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=3250KiB/s (3328kB/s), 325KiB/s-1192KiB/s (333kB/s-1221kB/s), io=20.0MiB (20.0MB), run=4876-6301msec WRITE: bw=4550KiB/s (4660kB/s), 852KiB/s-1625KiB/s (872kB/s-1664kB/s), io=28.0MiB (29.4MB), run=4876-6301msec 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=177603: Thu Aug 6 21:46:04 2026 read: IOPS=0, BW=3318KiB/s (3398kB/s)(12.0MiB/3703msec) clat (msec): min=492, max=1624, avg=1186.28, stdev=607.84 lat (msec): min=492, max=1624, avg=1186.28, stdev=607.84 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8000, max= 8175, per=100.00%, avg=8087.50, stdev=123.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.32%, ctx=44, 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=177606: Thu Aug 6 21:46:04 2026 read: IOPS=0, BW=865KiB/s (886kB/s)(4096KiB/4734msec) clat (nsec): min=795803k, max=795803k, avg=795802782.00, stdev= 0.00 lat (nsec): min=795805k, max=795805k, avg=795805025.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7801, max= 7801, per=100.00%, avg=7801.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1730KiB/s (1772kB/s)(8192KiB/4734msec); 0 zone resets clat (msec): min=1614, max=2177, avg=1895.74, stdev=398.19 lat (msec): min=1614, max=2177, avg=1896.05, stdev=398.04 clat percentiles (msec): | 1.00th=[ 1620], 5.00th=[ 1620], 10.00th=[ 1620], 20.00th=[ 1620], | 30.00th=[ 1620], 40.00th=[ 1620], 50.00th=[ 1620], 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] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.24%, ctx=89, 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=177607: Thu Aug 6 21:46:04 2026 write: IOPS=0, BW=2906KiB/s (2976kB/s)(12.0MiB/4228msec); 0 zone resets clat (msec): min=435, max=1995, avg=1358.86, stdev=818.13 lat (msec): min=436, max=1995, avg=1360.96, stdev=819.08 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.15%, 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=177610: Thu Aug 6 21:46:04 2026 write: IOPS=0, BW=3565KiB/s (3650kB/s)(12.0MiB/3447msec); 0 zone resets clat (msec): min=839, max=1313, avg=1083.02, stdev=237.34 lat (msec): min=840, max=1314, avg=1083.46, stdev=237.21 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, 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=0.00%, sys=3.34%, ctx=79, 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=3461KiB/s (3544kB/s), 865KiB/s-3318KiB/s (886kB/s-3398kB/s), io=16.0MiB (16.8MB), run=3703-4734msec WRITE: bw=6922KiB/s (7088kB/s), 1730KiB/s-3565KiB/s (1772kB/s-3650kB/s), io=32.0MiB (33.6MB), run=3447-4734msec rand-rw: (groupid=0, jobs=1): err= 0: pid=177604: Thu Aug 6 21:46:04 2026 read: IOPS=1, BW=4726KiB/s (4840kB/s)(12.0MiB/2600msec) clat (msec): min=646, max=1127, avg=826.15, stdev=262.43 lat (msec): min=646, max=1127, avg=826.15, stdev=262.43 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.54%, ctx=250, 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=177605: Thu Aug 6 21:46:04 2026 read: IOPS=0, BW=1147KiB/s (1174kB/s)(4096KiB/3572msec) clat (nsec): min=579015k, max=579015k, avg=579015200.00, stdev= 0.00 lat (nsec): min=579017k, max=579017k, avg=579017248.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 5557, max= 5557, per=100.00%, avg=5557.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2293KiB/s (2348kB/s)(8192KiB/3572msec); 0 zone resets clat (msec): min=1161, max=1673, avg=1417.22, stdev=362.01 lat (msec): min=1164, max=1678, avg=1421.70, stdev=363.38 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] 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 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.36%, ctx=144, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=177608: Thu Aug 6 21:46:04 2026 write: IOPS=0, BW=2632KiB/s (2696kB/s)(12.0MiB/4668msec); 0 zone resets clat (msec): min=411, max=2340, avg=1525.47, stdev=998.64 lat (msec): min=411, max=2340, avg=1526.84, stdev=999.04 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7892, max= 8000, per=100.00%, avg=7946.00, stdev=76.37, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.76%, ctx=87, 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=177609: Thu Aug 6 21:46:04 2026 write: IOPS=0, BW=3987KiB/s (4083kB/s)(12.0MiB/3082msec); 0 zone resets clat (msec): min=733, max=1356, avg=962.95, stdev=342.66 lat (msec): min=733, max=1357, avg=963.35, stdev=342.74 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7892, max= 8192, per=100.00%, avg=8042.00, stdev=212.13, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.74%, ctx=79, 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=4587KiB/s (4697kB/s), 1147KiB/s-4726KiB/s (1174kB/s-4840kB/s), io=16.0MiB (16.8MB), run=2600-3572msec WRITE: bw=7020KiB/s (7188kB/s), 2293KiB/s-3987KiB/s (2348kB/s-4083kB/s), io=32.0MiB (33.6MB), run=3082-4668msec