== sanity test 398b: DIO and buffer IO race ============== 23:51:14 (1789271474) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.17479 s, 8.2 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=179046: Sat Sep 12 23:53:19 2026 read: IOPS=14, BW=56.3KiB/s (57.6kB/s)(5992KiB/106439msec) clat (usec): min=32, max=772030, avg=38786.88, stdev=31842.63 lat (usec): min=33, max=772032, avg=38789.55, stdev=31841.66 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8979], 10.00th=[ 13829], 20.00th=[ 19268], | 30.00th=[ 23462], 40.00th=[ 27657], 50.00th=[ 32900], 60.00th=[ 39060], | 70.00th=[ 46400], 80.00th=[ 55313], 90.00th=[ 69731], 95.00th=[ 82314], | 99.00th=[126354], 99.50th=[154141], 99.90th=[231736], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 143, per=24.95%, avg=56.15, stdev=22.74, samples=209 iops : min= 1, max= 35, avg=13.39, stdev= 5.71, samples=209 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(6296KiB/106439msec); 0 zone resets clat (usec): min=726, max=287453, avg=30434.92, stdev=32190.45 lat (usec): min=727, max=287454, avg=30437.56, stdev=32191.36 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1156], 10.00th=[ 1352], 20.00th=[ 2966], | 30.00th=[ 6063], 40.00th=[ 14877], 50.00th=[ 22152], 60.00th=[ 30278], | 70.00th=[ 38536], 80.00th=[ 52691], 90.00th=[ 69731], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[164627], 99.90th=[225444], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 191, per=25.11%, avg=59.27, stdev=25.56, samples=208 iops : min= 1, max= 47, avg=14.18, stdev= 6.42, samples=208 lat (usec) : 50=0.26%, 100=1.53%, 250=0.10%, 750=0.07%, 1000=0.46% lat (msec) : 2=7.55%, 4=4.52%, 10=6.38%, 20=13.44%, 50=42.06% lat (msec) : 100=20.31%, 250=3.26%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.95%, ctx=6311, 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=179048: Sat Sep 12 23:53:19 2026 read: IOPS=14, BW=57.9KiB/s (59.3kB/s)(5940KiB/102506msec) clat (usec): min=40, max=255322, avg=38760.19, stdev=25267.56 lat (usec): min=40, max=255323, avg=38763.42, stdev=25269.15 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 11207], 10.00th=[ 15139], 20.00th=[ 19792], | 30.00th=[ 23462], 40.00th=[ 27919], 50.00th=[ 32900], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 54789], 90.00th=[ 69731], 95.00th=[ 86508], | 99.00th=[122160], 99.50th=[137364], 99.90th=[187696], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 5, max= 117, per=25.69%, avg=57.80, stdev=20.54, samples=201 iops : min= 1, max= 29, avg=13.81, stdev= 5.17, samples=201 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(6348KiB/102506msec); 0 zone resets clat (usec): min=690, max=703220, avg=28025.39, stdev=34349.17 lat (usec): min=691, max=703221, avg=28026.94, stdev=34349.29 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1139], 10.00th=[ 1270], 20.00th=[ 2343], | 30.00th=[ 4686], 40.00th=[ 10552], 50.00th=[ 19268], 60.00th=[ 26608], | 70.00th=[ 35390], 80.00th=[ 47449], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[130548], 99.50th=[147850], 99.90th=[183501], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 142, per=26.10%, avg=61.59, stdev=27.48, samples=201 iops : min= 1, max= 35, avg=14.77, stdev= 6.91, samples=201 lat (usec) : 50=0.20%, 100=1.14%, 250=0.03%, 750=0.07%, 1000=0.52% lat (msec) : 2=8.76%, 4=5.11%, 10=6.45%, 20=13.77%, 50=42.02% lat (msec) : 100=18.62%, 250=3.26%, 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=4.97%, ctx=6333, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179049: Sat Sep 12 23:53:19 2026 read: IOPS=14, BW=58.4KiB/s (59.8kB/s)(6028KiB/103214msec) clat (usec): min=33, max=182299, avg=37429.20, stdev=24979.83 lat (usec): min=33, max=182300, avg=37432.11, stdev=24979.90 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 8979], 10.00th=[ 13566], 20.00th=[ 18482], | 30.00th=[ 22676], 40.00th=[ 26608], 50.00th=[ 31851], 60.00th=[ 38011], | 70.00th=[ 44827], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 83362], | 99.00th=[122160], 99.50th=[145753], 99.90th=[177210], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 15, max= 135, per=25.81%, avg=58.07, stdev=23.74, samples=202 iops : min= 3, max= 33, avg=13.89, stdev= 5.95, samples=202 write: IOPS=15, BW=60.7KiB/s (62.1kB/s)(6260KiB/103214msec); 0 zone resets clat (usec): min=792, max=718844, avg=29629.88, stdev=34974.37 lat (usec): min=794, max=718846, avg=29632.42, stdev=34973.98 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1156], 10.00th=[ 1336], 20.00th=[ 2704], | 30.00th=[ 5669], 40.00th=[ 13042], 50.00th=[ 21627], 60.00th=[ 28181], | 70.00th=[ 37487], 80.00th=[ 52691], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[129500], 99.50th=[147850], 99.90th=[200279], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 127, per=25.40%, avg=59.94, stdev=24.65, samples=203 iops : min= 1, max= 31, avg=14.35, stdev= 6.19, samples=203 lat (usec) : 50=0.26%, 100=1.56%, 250=0.10%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.42% lat (msec) : 2=7.75%, 4=4.92%, 10=6.48%, 20=14.49%, 50=41.54% lat (msec) : 100=19.30%, 250=3.06%, 750=0.03% cpu : usr=0.08%, sys=5.02%, ctx=6175, 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=179050: Sat Sep 12 23:53:19 2026 read: IOPS=14, BW=57.9KiB/s (59.3kB/s)(6052KiB/104592msec) clat (usec): min=34, max=775147, avg=38380.61, stdev=31604.93 lat (usec): min=34, max=775148, avg=38382.57, stdev=31604.83 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 9896], 10.00th=[ 14615], 20.00th=[ 19530], | 30.00th=[ 23462], 40.00th=[ 27919], 50.00th=[ 32375], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 53740], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[129500], 99.50th=[147850], 99.90th=[202376], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 143, per=25.60%, avg=57.60, stdev=22.37, samples=205 iops : min= 1, max= 35, avg=13.75, stdev= 5.59, samples=205 write: IOPS=14, BW=59.6KiB/s (61.1kB/s)(6236KiB/104592msec); 0 zone resets clat (usec): min=748, max=231214, avg=29609.61, stdev=30909.34 lat (usec): min=749, max=231215, avg=29611.23, stdev=30909.46 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1139], 10.00th=[ 1319], 20.00th=[ 2671], | 30.00th=[ 6063], 40.00th=[ 13829], 50.00th=[ 21365], 60.00th=[ 28443], | 70.00th=[ 38011], 80.00th=[ 51119], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[131597], 99.50th=[160433], 99.90th=[191890], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 142, per=24.99%, avg=58.98, stdev=25.77, samples=206 iops : min= 1, max= 35, avg=14.10, stdev= 6.48, samples=206 lat (usec) : 50=0.33%, 100=1.60%, 500=0.03%, 750=0.03%, 1000=0.39% lat (msec) : 2=7.88%, 4=4.17%, 10=5.99%, 20=14.45%, 50=43.13% lat (msec) : 100=18.68%, 250=3.29%, 1000=0.03% cpu : usr=0.08%, sys=5.12%, ctx=6381, 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=226KiB/s (231kB/s), 56.3KiB/s-58.4KiB/s (57.6kB/s-59.8kB/s), io=23.4MiB (24.6MB), run=102506-106439msec WRITE: bw=236KiB/s (242kB/s), 59.2KiB/s-61.9KiB/s (60.6kB/s-63.4kB/s), io=24.6MiB (25.7MB), run=102506-106439msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179052: Sat Sep 12 23:54:02 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(5992KiB/147866msec) clat (msec): min=4, max=755, avg=38.18, stdev=37.73 lat (msec): min=4, max=755, avg=38.18, stdev=37.73 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 79], 95.00th=[ 106], | 99.00th=[ 165], 99.50th=[ 192], 99.90th=[ 313], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 143, per=25.41%, avg=40.66, stdev=25.45, samples=287 iops : min= 1, max= 35, avg= 9.49, stdev= 6.40, samples=287 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6296KiB/147866msec); 0 zone resets clat (msec): min=9, max=288, avg=57.42, stdev=37.31 lat (msec): min=9, max=288, avg=57.42, stdev=37.31 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 67], 80.00th=[ 82], 90.00th=[ 108], 95.00th=[ 130], | 99.00th=[ 190], 99.50th=[ 226], 99.90th=[ 268], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 119, per=25.41%, avg=42.44, stdev=23.11, samples=289 iops : min= 1, max= 29, avg= 9.95, stdev= 5.79, samples=289 lat (msec) : 10=2.90%, 20=17.15%, 50=45.21%, 100=25.94%, 250=8.59% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=1.71%, ctx=4617, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179053: Sat Sep 12 23:54:02 2026 read: IOPS=9, BW=39.7KiB/s (40.6kB/s)(5940KiB/149645msec) clat (msec): min=5, max=810, avg=39.24, stdev=39.62 lat (msec): min=5, max=810, avg=39.24, stdev=39.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 107], | 99.00th=[ 171], 99.50th=[ 199], 99.90th=[ 271], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 167, per=24.76%, avg=39.62, stdev=26.30, samples=292 iops : min= 1, max= 41, avg= 9.24, stdev= 6.60, samples=292 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6348KiB/149645msec); 0 zone resets clat (msec): min=7, max=243, avg=57.38, stdev=36.59 lat (msec): min=7, max=243, avg=57.39, stdev=36.59 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 106], 95.00th=[ 129], | 99.00th=[ 186], 99.50th=[ 205], 99.90th=[ 230], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 7, max= 142, per=25.32%, avg=42.29, stdev=23.77, samples=292 iops : min= 1, max= 35, avg= 9.90, stdev= 5.96, samples=292 lat (msec) : 10=3.12%, 20=16.18%, 50=45.67%, 100=25.55%, 250=9.31% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=1.72%, ctx=4662, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179054: Sat Sep 12 23:54:02 2026 read: IOPS=10, BW=40.8KiB/s (41.7kB/s)(6028KiB/147889msec) clat (msec): min=5, max=309, avg=39.37, stdev=34.78 lat (msec): min=5, max=309, avg=39.37, stdev=34.78 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 84], 95.00th=[ 111], | 99.00th=[ 178], 99.50th=[ 203], 99.90th=[ 251], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 135, per=25.29%, avg=40.47, stdev=24.08, samples=290 iops : min= 1, max= 33, avg= 9.45, stdev= 6.04, samples=290 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(6260KiB/147889msec); 0 zone resets clat (msec): min=8, max=811, avg=56.36, stdev=41.02 lat (msec): min=8, max=811, avg=56.37, stdev=41.02 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 54], | 70.00th=[ 65], 80.00th=[ 81], 90.00th=[ 106], 95.00th=[ 130], | 99.00th=[ 188], 99.50th=[ 213], 99.90th=[ 309], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 143, per=25.16%, avg=42.01, stdev=24.73, samples=290 iops : min= 1, max= 35, avg= 9.84, stdev= 6.20, samples=290 lat (msec) : 10=2.80%, 20=16.63%, 50=46.81%, 100=24.38%, 250=9.21% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.05%, sys=1.72%, ctx=4645, 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=179055: Sat Sep 12 23:54:02 2026 read: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6052KiB/148432msec) clat (msec): min=4, max=276, avg=38.74, stdev=34.11 lat (msec): min=4, max=276, avg=38.74, stdev=34.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 110], | 99.00th=[ 169], 99.50th=[ 201], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 135, per=25.57%, avg=40.91, stdev=25.54, samples=288 iops : min= 1, max= 33, avg= 9.56, stdev= 6.40, samples=288 write: IOPS=10, BW=42.0KiB/s (43.0kB/s)(6236KiB/148432msec); 0 zone resets clat (msec): min=6, max=802, avg=57.39, stdev=40.88 lat (msec): min=6, max=802, avg=57.40, stdev=40.88 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 67], 80.00th=[ 83], 90.00th=[ 105], 95.00th=[ 126], | 99.00th=[ 184], 99.50th=[ 215], 99.90th=[ 313], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 128, per=25.01%, avg=41.76, stdev=23.75, samples=290 iops : min= 1, max= 32, avg= 9.77, stdev= 5.96, samples=290 lat (msec) : 10=3.12%, 20=16.96%, 50=44.43%, 100=26.27%, 250=8.98% lat (msec) : 500=0.20%, 1000=0.03% cpu : usr=0.06%, sys=1.81%, ctx=4762, 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=160KiB/s (164kB/s), 39.7KiB/s-40.8KiB/s (40.6kB/s-41.8kB/s), io=23.4MiB (24.6MB), run=147866-149645msec WRITE: bw=168KiB/s (172kB/s), 42.0KiB/s-42.6KiB/s (43.0kB/s-43.6kB/s), io=24.6MiB (25.7MB), run=147866-149645msec 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=179095: Sat Sep 12 23:54:50 2026 read: IOPS=10, BW=167KiB/s (171kB/s)(5920KiB/35538msec) clat (usec): min=37, max=322363, avg=55108.98, stdev=40615.88 lat (usec): min=37, max=322365, avg=55110.42, stdev=40615.88 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 65], 10.00th=[ 17695], 20.00th=[ 26608], | 30.00th=[ 32637], 40.00th=[ 39584], 50.00th=[ 46924], 60.00th=[ 55313], | 70.00th=[ 66323], 80.00th=[ 80217], 90.00th=[102237], 95.00th=[128451], | 99.00th=[193987], 99.50th=[287310], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 64, max= 412, per=24.60%, avg=165.54, stdev=58.59, samples=69 iops : min= 4, max= 25, avg= 9.62, stdev= 3.67, samples=69 write: IOPS=11, BW=179KiB/s (183kB/s)(6368KiB/35538msec); 0 zone resets clat (usec): min=1031, max=229954, avg=37883.84, stdev=38058.32 lat (usec): min=1033, max=229956, avg=37903.43, stdev=38071.32 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1647], 10.00th=[ 2180], 20.00th=[ 5211], | 30.00th=[ 10421], 40.00th=[ 18220], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 49546], 80.00th=[ 65274], 90.00th=[ 87557], 95.00th=[112722], | 99.00th=[179307], 99.50th=[204473], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 380, per=25.69%, avg=182.12, stdev=81.60, samples=68 iops : min= 1, max= 23, avg=10.68, stdev= 5.12, samples=68 lat (usec) : 50=0.52%, 100=3.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=4.69%, 4=4.30%, 10=6.38%, 20=7.94%, 50=35.42% lat (msec) : 100=28.26%, 250=8.59%, 500=0.26% cpu : usr=0.07%, sys=4.47%, ctx=1635, 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=179096: Sat Sep 12 23:54:50 2026 read: IOPS=10, BW=162KiB/s (166kB/s)(5744KiB/35438msec) clat (usec): min=36, max=236196, avg=53235.38, stdev=38324.75 lat (usec): min=36, max=236197, avg=53238.05, stdev=38325.36 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 8356], 20.00th=[ 25560], | 30.00th=[ 33162], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 54264], | 70.00th=[ 64226], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[132645], | 99.00th=[175113], 99.50th=[198181], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 32, max= 380, per=24.05%, avg=161.87, stdev=71.57, samples=69 iops : min= 2, max= 23, avg= 9.39, stdev= 4.52, samples=69 write: IOPS=11, BW=185KiB/s (189kB/s)(6544KiB/35438msec); 0 zone resets clat (usec): min=1135, max=212263, avg=39804.26, stdev=39849.29 lat (usec): min=1137, max=212265, avg=39816.58, stdev=39841.61 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1745], 10.00th=[ 2737], 20.00th=[ 7046], | 30.00th=[ 9634], 40.00th=[ 17695], 50.00th=[ 27919], 60.00th=[ 39584], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[122160], | 99.00th=[173016], 99.50th=[191890], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 62, max= 475, per=25.91%, avg=183.67, stdev=89.60, samples=69 iops : min= 3, max= 29, avg=10.75, stdev= 5.62, samples=69 lat (usec) : 50=0.13%, 100=3.65%, 250=0.26%, 500=0.26% lat (msec) : 2=4.43%, 4=2.47%, 10=9.90%, 20=8.72%, 50=32.94% lat (msec) : 100=29.04%, 250=8.20% cpu : usr=0.05%, sys=4.73%, ctx=1606, 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=179097: Sat Sep 12 23:54:50 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(6256KiB/34745msec) clat (usec): min=35, max=192355, avg=50602.77, stdev=32992.91 lat (usec): min=35, max=192355, avg=50603.99, stdev=32992.86 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 10421], 20.00th=[ 25035], | 30.00th=[ 32113], 40.00th=[ 39584], 50.00th=[ 45351], 60.00th=[ 54789], | 70.00th=[ 63701], 80.00th=[ 73925], 90.00th=[ 98042], 95.00th=[109577], | 99.00th=[147850], 99.50th=[183501], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 62, max= 380, per=26.84%, avg=180.66, stdev=69.86, samples=68 iops : min= 3, max= 23, avg=10.57, stdev= 4.42, samples=68 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34745msec); 0 zone resets clat (usec): min=1260, max=168263, avg=39571.86, stdev=37616.90 lat (usec): min=1261, max=168266, avg=39573.77, stdev=37616.81 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1860], 10.00th=[ 3163], 20.00th=[ 6259], | 30.00th=[ 10945], 40.00th=[ 19530], 50.00th=[ 27919], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[124257], | 99.00th=[149947], 99.50th=[154141], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 62, max= 411, per=24.27%, avg=172.07, stdev=80.27, samples=68 iops : min= 3, max= 25, avg=10.03, stdev= 5.08, samples=68 lat (usec) : 50=0.39%, 100=3.65%, 250=0.78%, 500=0.13%, 750=0.13% lat (msec) : 2=2.99%, 4=3.65%, 10=7.42%, 20=7.55%, 50=35.55% lat (msec) : 100=29.04%, 250=8.72% cpu : usr=0.09%, sys=4.65%, ctx=1678, 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=179098: Sat Sep 12 23:54:50 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(6032KiB/33781msec) clat (usec): min=40, max=186844, avg=49206.80, stdev=34720.55 lat (usec): min=40, max=186845, avg=49234.04, stdev=34720.85 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 79], 20.00th=[ 21627], | 30.00th=[ 29754], 40.00th=[ 38536], 50.00th=[ 45351], 60.00th=[ 52167], | 70.00th=[ 61080], 80.00th=[ 71828], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[156238], 99.50th=[179307], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 349, per=26.45%, avg=178.00, stdev=71.84, samples=66 iops : min= 1, max= 21, avg=10.39, stdev= 4.56, samples=66 write: IOPS=11, BW=185KiB/s (190kB/s)(6256KiB/33781msec); 0 zone resets clat (usec): min=1280, max=203994, avg=38802.52, stdev=40313.38 lat (usec): min=1281, max=203995, avg=38804.78, stdev=40313.37 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1778], 10.00th=[ 2704], 20.00th=[ 5080], | 30.00th=[ 9241], 40.00th=[ 14615], 50.00th=[ 24249], 60.00th=[ 38011], | 70.00th=[ 48497], 80.00th=[ 65799], 90.00th=[ 98042], 95.00th=[121111], | 99.00th=[166724], 99.50th=[202376], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 32, max= 411, per=26.20%, avg=185.76, stdev=77.04, samples=66 iops : min= 2, max= 25, avg=10.89, stdev= 4.87, samples=66 lat (usec) : 50=0.78%, 100=4.69%, 250=0.26%, 1000=0.13% lat (msec) : 2=3.39%, 4=4.56%, 10=8.72%, 20=9.11%, 50=32.03% lat (msec) : 100=27.08%, 250=9.24% cpu : usr=0.06%, sys=4.43%, ctx=1512, 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=674KiB/s (690kB/s), 162KiB/s-180KiB/s (166kB/s-184kB/s), io=23.4MiB (24.5MB), run=33781-35538msec WRITE: bw=709KiB/s (726kB/s), 174KiB/s-185KiB/s (178kB/s-190kB/s), io=24.6MiB (25.8MB), run=33781-35538msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179090: Sat Sep 12 23:55:02 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5920KiB/47619msec) clat (msec): min=6, max=343, avg=51.28, stdev=47.82 lat (msec): min=6, max=343, avg=51.30, stdev=47.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 43], | 70.00th=[ 50], 80.00th=[ 69], 90.00th=[ 116], 95.00th=[ 148], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 382, per=25.42%, avg=126.87, stdev=82.15, samples=90 iops : min= 1, max= 23, avg= 7.13, stdev= 5.13, samples=90 write: IOPS=8, BW=134KiB/s (137kB/s)(6368KiB/47619msec); 0 zone resets clat (msec): min=12, max=296, avg=71.51, stdev=47.75 lat (msec): min=12, max=296, avg=71.51, stdev=47.75 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 56], 60.00th=[ 70], | 70.00th=[ 87], 80.00th=[ 105], 90.00th=[ 136], 95.00th=[ 174], | 99.00th=[ 253], 99.50th=[ 257], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 506, per=25.57%, avg=134.26, stdev=81.11, samples=92 iops : min= 1, max= 31, avg= 7.61, stdev= 5.11, samples=92 lat (msec) : 10=1.30%, 20=8.98%, 50=47.01%, 100=25.39%, 250=16.28% lat (msec) : 500=1.04% cpu : usr=0.03%, sys=1.47%, ctx=1133, 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=179091: Sat Sep 12 23:55:02 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(5744KiB/47791msec) clat (msec): min=5, max=311, avg=49.92, stdev=47.09 lat (msec): min=5, max=311, avg=49.93, stdev=47.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 66], 90.00th=[ 111], 95.00th=[ 155], | 99.00th=[ 213], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 22, max= 383, per=25.25%, avg=126.00, stdev=83.27, samples=88 iops : min= 1, max= 23, avg= 7.07, stdev= 5.22, samples=88 write: IOPS=8, BW=137KiB/s (140kB/s)(6544KiB/47791msec); 0 zone resets clat (msec): min=14, max=272, avg=72.55, stdev=50.20 lat (msec): min=14, max=272, avg=72.56, stdev=50.20 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 88], 80.00th=[ 109], 90.00th=[ 146], 95.00th=[ 176], | 99.00th=[ 243], 99.50th=[ 257], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 570, per=26.38%, avg=138.50, stdev=86.48, samples=90 iops : min= 1, max= 35, avg= 7.87, stdev= 5.46, samples=90 lat (msec) : 10=1.56%, 20=8.98%, 50=44.92%, 100=26.30%, 250=17.45% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.35%, ctx=1156, 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=179092: Sat Sep 12 23:55:02 2026 read: IOPS=8, BW=131KiB/s (135kB/s)(6256KiB/47622msec) clat (msec): min=6, max=323, avg=50.07, stdev=45.48 lat (msec): min=6, max=323, avg=50.08, stdev=45.48 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 101], 95.00th=[ 150], | 99.00th=[ 253], 99.50th=[ 266], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 29, max= 414, per=26.59%, avg=132.68, stdev=92.53, samples=92 iops : min= 1, max= 25, avg= 7.50, stdev= 5.81, samples=92 write: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47622msec); 0 zone resets clat (msec): min=11, max=360, avg=73.87, stdev=51.23 lat (msec): min=11, max=360, avg=73.87, stdev=51.23 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 106], 90.00th=[ 157], 95.00th=[ 176], | 99.00th=[ 247], 99.50th=[ 284], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 29, max= 411, per=23.78%, avg=124.86, stdev=76.47, samples=93 iops : min= 1, max= 25, avg= 7.00, stdev= 4.80, samples=93 lat (msec) : 10=1.56%, 20=10.68%, 50=43.49%, 100=27.60%, 250=15.76% lat (msec) : 500=0.91% cpu : usr=0.03%, sys=1.29%, ctx=1110, 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=179093: Sat Sep 12 23:55:02 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(6032KiB/47956msec) clat (msec): min=4, max=311, avg=51.54, stdev=47.92 lat (msec): min=4, max=311, avg=51.54, stdev=47.92 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 75], 90.00th=[ 121], 95.00th=[ 150], | 99.00th=[ 230], 99.50th=[ 268], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 441, per=25.12%, avg=125.35, stdev=92.56, samples=93 iops : min= 1, max= 27, avg= 7.03, stdev= 5.79, samples=93 write: IOPS=8, BW=130KiB/s (134kB/s)(6256KiB/47956msec); 0 zone resets clat (msec): min=11, max=353, avg=72.74, stdev=54.17 lat (msec): min=11, max=353, avg=72.74, stdev=54.17 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 38], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 68], | 70.00th=[ 84], 80.00th=[ 110], 90.00th=[ 146], 95.00th=[ 188], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 30, max= 415, per=25.43%, avg=133.48, stdev=87.73, samples=91 iops : min= 1, max= 25, avg= 7.55, stdev= 5.49, samples=91 lat (msec) : 10=1.95%, 20=12.50%, 50=41.67%, 100=25.65%, 250=17.19% lat (msec) : 500=1.04% cpu : usr=0.06%, sys=1.45%, ctx=1151, 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=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=499KiB/s (511kB/s), 120KiB/s-131KiB/s (123kB/s-135kB/s), io=23.4MiB (24.5MB), run=47619-47956msec WRITE: bw=525KiB/s (538kB/s), 127KiB/s-137KiB/s (130kB/s-140kB/s), io=24.6MiB (25.8MB), run=47619-47956msec 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=179113: Sat Sep 12 23:55:17 2026 read: IOPS=2, BW=2129KiB/s (2180kB/s)(7168KiB/3367msec) clat (msec): min=114, max=348, avg=216.14, stdev=100.87 lat (msec): min=114, max=348, avg=216.14, stdev=100.87 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 123], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 165], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 326], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2019, max= 3961, per=59.28%, avg=2696.25, stdev=916.31, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1521KiB/s (1557kB/s)(5120KiB/3367msec); 0 zone resets clat (msec): min=153, max=637, avg=362.44, stdev=191.38 lat (msec): min=153, max=641, avg=363.23, stdev=192.65 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 2019, max= 6119, per=53.20%, avg=3387.00, stdev=2365.98, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 250=50.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=4.07%, ctx=79, 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=179115: Sat Sep 12 23:55:17 2026 read: IOPS=0, BW=471KiB/s (482kB/s)(2048KiB/4348msec) clat (msec): min=91, max=154, avg=122.87, stdev=44.76 lat (msec): min=91, max=154, avg=122.87, stdev=44.76 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 91], 50.00th=[ 91], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 155], 90.00th=[ 155], 95.00th=[ 155], | 99.00th=[ 155], 99.50th=[ 155], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 1424, max= 2019, per=37.85%, avg=1721.50, stdev=420.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2355KiB/s (2412kB/s)(10.0MiB/4348msec); 0 zone resets clat (msec): min=127, max=1048, avg=400.82, stdev=271.60 lat (msec): min=127, max=1048, avg=400.91, stdev=271.60 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 184], | 30.00th=[ 224], 40.00th=[ 288], 50.00th=[ 321], 60.00th=[ 347], | 70.00th=[ 363], 80.00th=[ 464], 90.00th=[ 651], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1980, max= 4079, per=48.14%, avg=3065.00, stdev=1034.66, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=5.15%, ctx=102, 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=179116: Sat Sep 12 23:55:17 2026 read: IOPS=1, BW=1364KiB/s (1397kB/s)(6144KiB/4503msec) clat (msec): min=79, max=539, avg=233.03, stdev=179.46 lat (msec): min=79, max=539, avg=233.04, stdev=179.46 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 351], 80.00th=[ 351], 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= 1600, max= 2048, per=42.84%, avg=1948.20, stdev=194.93, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1364KiB/s (1397kB/s)(6144KiB/4503msec); 0 zone resets clat (msec): min=196, max=731, avg=440.49, stdev=221.01 lat (msec): min=196, max=731, avg=440.56, stdev=221.02 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 451], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1980, max= 2048, per=31.80%, avg=2025.00, stdev=26.71, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=5.09%, ctx=96, 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=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=179117: Sat Sep 12 23:55:17 2026 read: IOPS=1, BW=1249KiB/s (1279kB/s)(5120KiB/4100msec) clat (msec): min=90, max=386, avg=158.97, stdev=128.06 lat (msec): min=90, max=386, avg=158.98, stdev=128.06 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 91], 50.00th=[ 104], 60.00th=[ 104], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 4071, max= 4079, per=89.60%, avg=4075.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1748KiB/s (1790kB/s)(7168KiB/4100msec); 0 zone resets clat (msec): min=117, max=967, avg=451.72, stdev=290.65 lat (msec): min=117, max=967, avg=451.81, stdev=290.65 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 120], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 493], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 550], 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= 1410, max= 3961, per=41.60%, avg=2648.50, stdev=1147.74, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=3.68%, ctx=143, 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=4548KiB/s (4657kB/s), 471KiB/s-2129KiB/s (482kB/s-2180kB/s), io=20.0MiB (20.0MB), run=3367-4503msec WRITE: bw=6367KiB/s (6520kB/s), 1364KiB/s-2355KiB/s (1397kB/s-2412kB/s), io=28.0MiB (29.4MB), run=3367-4503msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179118: Sat Sep 12 23:55:17 2026 read: IOPS=1, BW=2032KiB/s (2081kB/s)(7168KiB/3527msec) clat (usec): min=516, max=340748, avg=163436.75, stdev=154593.45 lat (usec): min=518, max=340749, avg=163438.31, stdev=154593.42 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 529], | 30.00th=[ 2606], 40.00th=[ 2606], 50.00th=[242222], 60.00th=[270533], | 70.00th=[270533], 80.00th=[287310], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 1976, max= 4023, per=71.20%, avg=3327.67, stdev=1170.74, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1452KiB/s (1486kB/s)(5120KiB/3527msec); 0 zone resets clat (msec): min=242, max=841, avg=469.60, stdev=268.17 lat (msec): min=242, max=841, avg=469.68, stdev=268.14 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1992, max= 4063, per=46.26%, avg=3027.50, stdev=1464.42, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=16.67% lat (msec) : 4=8.33%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.09%, sys=11.40%, ctx=141, 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=179119: Sat Sep 12 23:55:17 2026 read: IOPS=0, BW=467KiB/s (479kB/s)(2048KiB/4381msec) clat (usec): min=526, max=313735, avg=157131.06, stdev=221472.54 lat (usec): min=527, max=313738, avg=157133.15, stdev=221473.40 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 529], 60.00th=[312476], | 70.00th=[312476], 80.00th=[312476], 90.00th=[312476], 95.00th=[312476], | 99.00th=[312476], 99.50th=[312476], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 1378, max= 2031, per=36.47%, avg=1704.50, stdev=461.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2337KiB/s (2393kB/s)(10.0MiB/4381msec); 0 zone resets clat (msec): min=70, max=722, avg=389.07, stdev=238.09 lat (msec): min=70, max=722, avg=389.15, stdev=238.10 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 112], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 279], 60.00th=[ 481], | 70.00th=[ 527], 80.00th=[ 542], 90.00th=[ 709], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1988, max= 6023, per=55.30%, avg=3618.60, stdev=1683.87, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=33.33% cpu : usr=0.02%, sys=12.76%, ctx=102, 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=179120: Sat Sep 12 23:55:17 2026 read: IOPS=1, BW=1730KiB/s (1772kB/s)(6144KiB/3551msec) clat (usec): min=610, max=253195, avg=173759.65, stdev=97016.91 lat (usec): min=612, max=253195, avg=173761.24, stdev=97016.55 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[127402], | 30.00th=[127402], 40.00th=[187696], 50.00th=[187696], 60.00th=[221250], | 70.00th=[252707], 80.00th=[252707], 90.00th=[252707], 95.00th=[252707], | 99.00th=[252707], 99.50th=[252707], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 1988, max= 4055, per=53.88%, avg=2518.50, stdev=1024.49, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1730KiB/s (1772kB/s)(6144KiB/3551msec); 0 zone resets clat (msec): min=231, max=667, avg=393.86, stdev=158.85 lat (msec): min=232, max=667, avg=394.56, stdev=159.04 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 405], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2000, max= 2719, per=33.53%, avg=2194.25, stdev=350.10, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.06%, sys=13.18%, ctx=246, 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=179121: Sat Sep 12 23:55:17 2026 read: IOPS=1, BW=1216KiB/s (1245kB/s)(5120KiB/4212msec) clat (usec): min=482, max=166608, avg=96322.21, stdev=83075.23 lat (usec): min=483, max=166609, avg=96323.52, stdev=83075.10 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], 20.00th=[ 482], | 30.00th=[ 11600], 40.00th=[ 11600], 50.00th=[141558], 60.00th=[141558], | 70.00th=[162530], 80.00th=[162530], 90.00th=[166724], 95.00th=[166724], | 99.00th=[166724], 99.50th=[166724], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1702KiB/s (1743kB/s)(7168KiB/4212msec); 0 zone resets clat (msec): min=202, max=1240, avg=509.51, stdev=342.86 lat (msec): min=202, max=1240, avg=509.61, stdev=342.83 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 264], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 460], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 531], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1992, max= 4023, per=44.41%, avg=2906.25, stdev=1068.55, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=8.33% lat (msec) : 20=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.07%, sys=10.28%, ctx=151, 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=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=4675KiB/s (4787kB/s), 467KiB/s-2032KiB/s (479kB/s-2081kB/s), io=20.0MiB (20.0MB), run=3527-4381msec WRITE: bw=6545KiB/s (6702kB/s), 1452KiB/s-2337KiB/s (1486kB/s-2393kB/s), io=28.0MiB (29.4MB), run=3527-4381msec 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=179127: Sat Sep 12 23:55:31 2026 read: IOPS=2, BW=9143KiB/s (9362kB/s)(12.0MiB/1344msec) clat (msec): min=256, max=527, avg=349.07, stdev=154.19 lat (msec): min=256, max=527, avg=349.07, stdev=154.19 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 6895, max= 8192, per=66.44%, avg=7543.50, stdev=917.12, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=9.46%, ctx=56, 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=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=179128: Sat Sep 12 23:55:31 2026 read: IOPS=0, BW=2839KiB/s (2907kB/s)(4096KiB/1443msec) clat (nsec): min=475155k, max=475155k, avg=475154998.00, stdev= 0.00 lat (nsec): min=475156k, max=475156k, avg=475156007.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 8192, max= 8192, per=72.15%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5677KiB/s (5813kB/s)(8192KiB/1443msec); 0 zone resets clat (msec): min=253, max=373, avg=313.52, stdev=84.75 lat (msec): min=254, max=374, avg=314.07, stdev=84.84 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=8.88%, ctx=65, 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=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=179129: Sat Sep 12 23:55:31 2026 write: IOPS=0, BW=2819KiB/s (2887kB/s)(12.0MiB/4359msec); 0 zone resets clat (msec): min=356, max=2966, avg=1355.89, stdev=1408.26 lat (msec): min=356, max=2966, avg=1356.21, stdev=1408.31 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 2970], 80.00th=[ 2970], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.59%, ctx=61, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179130: Sat Sep 12 23:55:31 2026 write: IOPS=2, BW=8859KiB/s (9072kB/s)(12.0MiB/1387msec); 0 zone resets clat (msec): min=318, max=418, avg=353.10, stdev=57.08 lat (msec): min=318, max=419, avg=353.45, stdev=57.23 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 500=100.00% cpu : usr=0.14%, sys=10.89%, ctx=66, 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=11.1MiB/s (11.6MB/s), 2839KiB/s-9143KiB/s (2907kB/s-9362kB/s), io=16.0MiB (16.8MB), run=1344-1443msec WRITE: bw=7517KiB/s (7698kB/s), 2819KiB/s-8859KiB/s (2887kB/s-9072kB/s), io=32.0MiB (33.6MB), run=1387-4359msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179133: Sat Sep 12 23:55:32 2026 read: IOPS=0, BW=2790KiB/s (2857kB/s)(12.0MiB/4404msec) clat (msec): min=771, max=2691, avg=1465.07, stdev=1065.10 lat (msec): min=771, max=2691, avg=1465.07, stdev=1065.09 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7876, max= 8062, per=100.00%, avg=7969.00, stdev=131.52, 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=9.99%, ctx=733, 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=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=179134: Sat Sep 12 23:55:32 2026 read: IOPS=0, BW=1000KiB/s (1024kB/s)(4096KiB/4095msec) clat (nsec): min=3019.6M, max=3019.6M, avg=3019579287.00, stdev= 0.00 lat (nsec): min=3019.6M, max=3019.6M, avg=3019582095.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3004], 5.00th=[ 3004], 10.00th=[ 3004], 20.00th=[ 3004], | 30.00th=[ 3004], 40.00th=[ 3004], 50.00th=[ 3004], 60.00th=[ 3004], | 70.00th=[ 3004], 80.00th=[ 3004], 90.00th=[ 3004], 95.00th=[ 3004], | 99.00th=[ 3004], 99.50th=[ 3004], 99.90th=[ 3004], 99.95th=[ 3004], | 99.99th=[ 3004] bw ( KiB/s): min= 7772, max= 7772, per=100.00%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2000KiB/s (2049kB/s)(8192KiB/4095msec); 0 zone resets clat (msec): min=459, max=605, avg=532.52, stdev=102.82 lat (msec): min=460, max=606, avg=533.14, stdev=103.16 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.01%, ctx=181, 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=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=179135: Sat Sep 12 23:55:32 2026 write: IOPS=0, BW=3683KiB/s (3772kB/s)(12.0MiB/3336msec); 0 zone resets clat (msec): min=312, max=2579, avg=1110.69, stdev=1273.57 lat (msec): min=312, max=2581, avg=1111.56, stdev=1274.23 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 2567], 80.00th=[ 2567], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min=15753, max=15753, per=100.00%, avg=15753.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.09%, sys=3.21%, ctx=49, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179136: Sat Sep 12 23:55:32 2026 write: IOPS=0, BW=2802KiB/s (2869kB/s)(12.0MiB/4386msec); 0 zone resets clat (msec): min=503, max=2617, avg=1460.50, stdev=1070.92 lat (msec): min=503, max=2618, avg=1461.76, stdev=1071.39 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 2601], 80.00th=[ 2601], 90.00th=[ 2601], 95.00th=[ 2601], | 99.00th=[ 2601], 99.50th=[ 2601], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7876, max= 8062, per=100.00%, avg=7969.00, stdev=131.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.74%, ctx=80, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=3720KiB/s (3810kB/s), 1000KiB/s-2790KiB/s (1024kB/s-2857kB/s), io=16.0MiB (16.8MB), run=4095-4404msec WRITE: bw=7471KiB/s (7650kB/s), 2000KiB/s-3683KiB/s (2049kB/s-3772kB/s), io=32.0MiB (33.6MB), run=3336-4386msec