== sanity test 398b: DIO and buffer IO race ============== 20:13:33 (1788567213) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.36203 s, 9.4 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=179676: Fri Sep 4 20:15:50 2026 read: IOPS=12, BW=51.5KiB/s (52.7kB/s)(5992KiB/116384msec) clat (usec): min=35, max=950982, avg=42802.62, stdev=37133.79 lat (usec): min=36, max=950982, avg=42806.32, stdev=37132.08 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 1205], 10.00th=[ 15139], 20.00th=[ 21103], | 30.00th=[ 26084], 40.00th=[ 30540], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[162530], 99.90th=[299893], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 135, per=25.03%, avg=51.30, stdev=19.95, samples=228 iops : min= 1, max= 33, avg=12.19, stdev= 5.01, samples=228 write: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6296KiB/116384msec); 0 zone resets clat (usec): min=955, max=213996, avg=32846.04, stdev=33910.27 lat (usec): min=957, max=213997, avg=32852.75, stdev=33914.73 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1172], 10.00th=[ 1467], 20.00th=[ 3261], | 30.00th=[ 7242], 40.00th=[ 14353], 50.00th=[ 23462], 60.00th=[ 32375], | 70.00th=[ 42730], 80.00th=[ 58459], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[152044], 99.50th=[166724], 99.90th=[198181], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 7, max= 151, per=25.18%, avg=54.13, stdev=22.44, samples=227 iops : min= 1, max= 37, avg=12.90, stdev= 5.62, samples=227 lat (usec) : 50=0.59%, 100=1.53%, 250=0.26%, 500=0.03%, 1000=0.13% lat (msec) : 2=6.80%, 4=4.75%, 10=6.54%, 20=11.39%, 50=40.43% lat (msec) : 100=23.18%, 250=4.30%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.44%, ctx=6397, 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=179677: Fri Sep 4 20:15:50 2026 read: IOPS=12, BW=50.9KiB/s (52.1kB/s)(5940KiB/116748msec) clat (usec): min=42, max=296132, avg=42285.83, stdev=27070.90 lat (usec): min=43, max=296133, avg=42288.24, stdev=27071.59 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 10814], 10.00th=[ 16057], 20.00th=[ 21890], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 61080], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[126354], 99.50th=[164627], 99.90th=[240124], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 5, max= 103, per=24.67%, avg=50.57, stdev=17.98, samples=229 iops : min= 1, max= 25, avg=12.01, stdev= 4.51, samples=229 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6348KiB/116748msec); 0 zone resets clat (usec): min=872, max=915955, avg=33666.54, stdev=40088.02 lat (usec): min=873, max=915956, avg=33675.26, stdev=40097.31 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1713], 20.00th=[ 3752], | 30.00th=[ 7242], 40.00th=[ 15926], 50.00th=[ 23987], 60.00th=[ 32900], | 70.00th=[ 42730], 80.00th=[ 57934], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[152044], 99.50th=[166724], 99.90th=[202376], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 5, max= 151, per=25.20%, avg=54.18, stdev=23.82, samples=228 iops : min= 1, max= 37, avg=12.91, stdev= 5.98, samples=228 lat (usec) : 50=0.36%, 100=1.33%, 250=0.07%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.05%, 4=4.65%, 10=7.32%, 20=10.90%, 50=41.41% lat (msec) : 100=24.02%, 250=3.65%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.56%, ctx=6572, 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=179678: Fri Sep 4 20:15:50 2026 read: IOPS=13, BW=52.6KiB/s (53.9kB/s)(6028KiB/114624msec) clat (usec): min=28, max=977296, avg=42132.68, stdev=36861.57 lat (usec): min=28, max=977297, avg=42150.37, stdev=36882.96 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 619], 10.00th=[ 15008], 20.00th=[ 20841], | 30.00th=[ 25297], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 89654], | 99.00th=[139461], 99.50th=[166724], 99.90th=[265290], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 8, max= 118, per=25.57%, avg=52.42, stdev=19.90, samples=225 iops : min= 2, max= 29, avg=12.47, stdev= 5.00, samples=225 write: IOPS=13, BW=54.6KiB/s (55.9kB/s)(6260KiB/114624msec); 0 zone resets clat (usec): min=839, max=215732, avg=32331.42, stdev=34035.98 lat (usec): min=840, max=215734, avg=32337.04, stdev=34033.44 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1926], 20.00th=[ 3884], | 30.00th=[ 6849], 40.00th=[ 13435], 50.00th=[ 22152], 60.00th=[ 30540], | 70.00th=[ 41681], 80.00th=[ 55313], 90.00th=[ 80217], 95.00th=[103285], | 99.00th=[160433], 99.50th=[168821], 99.90th=[200279], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 7, max= 110, per=25.31%, avg=54.42, stdev=21.24, samples=225 iops : min= 1, max= 27, avg=12.97, stdev= 5.33, samples=225 lat (usec) : 50=0.52%, 100=1.73%, 250=0.16%, 750=0.07%, 1000=0.20% lat (msec) : 2=5.24%, 4=5.11%, 10=8.46%, 20=11.46%, 50=40.43% lat (msec) : 100=22.17%, 250=4.39%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.41%, ctx=6439, 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=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=179679: Fri Sep 4 20:15:50 2026 read: IOPS=12, BW=51.8KiB/s (53.1kB/s)(6052KiB/116733msec) clat (usec): min=35, max=974919, avg=42862.49, stdev=37443.62 lat (usec): min=36, max=974921, avg=42866.37, stdev=37444.47 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 7504], 10.00th=[ 14222], 20.00th=[ 20579], | 30.00th=[ 26084], 40.00th=[ 31065], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[145753], 99.50th=[164627], 99.90th=[312476], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 5, max= 111, per=25.21%, avg=51.68, stdev=19.33, samples=229 iops : min= 1, max= 27, avg=12.29, stdev= 4.82, samples=229 write: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6236KiB/116733msec); 0 zone resets clat (usec): min=970, max=256844, avg=32933.36, stdev=34689.91 lat (usec): min=971, max=256845, avg=32934.88, stdev=34689.84 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1483], 20.00th=[ 3064], | 30.00th=[ 5997], 40.00th=[ 13435], 50.00th=[ 22414], 60.00th=[ 31327], | 70.00th=[ 43779], 80.00th=[ 58983], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[149947], 99.50th=[170918], 99.90th=[196084], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 119, per=24.73%, avg=53.17, stdev=21.86, samples=229 iops : min= 1, max= 29, avg=12.66, stdev= 5.50, samples=229 lat (usec) : 50=0.36%, 100=1.76%, 250=0.16%, 1000=0.07% lat (msec) : 2=7.03%, 4=4.85%, 10=7.03%, 20=11.95%, 50=38.22% lat (msec) : 100=23.83%, 250=4.65%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.49%, ctx=6461, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=206KiB/s (211kB/s), 50.9KiB/s-52.6KiB/s (52.1kB/s-53.9kB/s), io=23.4MiB (24.6MB), run=114624-116748msec WRITE: bw=215KiB/s (221kB/s), 53.4KiB/s-54.6KiB/s (54.7kB/s-55.9kB/s), io=24.6MiB (25.7MB), run=114624-116748msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179672: Fri Sep 4 20:16:27 2026 read: IOPS=9, BW=39.3KiB/s (40.2kB/s)(5992KiB/152498msec) clat (msec): min=5, max=991, avg=40.26, stdev=44.46 lat (msec): min=5, max=991, avg=40.26, stdev=44.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 59], 90.00th=[ 89], 95.00th=[ 118], | 99.00th=[ 199], 99.50th=[ 215], 99.90th=[ 288], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 136, per=25.78%, avg=39.96, stdev=27.36, samples=292 iops : min= 1, max= 34, avg= 9.35, stdev= 6.91, samples=292 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6296KiB/152498msec); 0 zone resets clat (msec): min=9, max=333, avg=58.26, stdev=40.43 lat (msec): min=9, max=333, avg=58.26, stdev=40.43 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 70], 80.00th=[ 87], 90.00th=[ 114], 95.00th=[ 138], | 99.00th=[ 186], 99.50th=[ 232], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 127, per=25.22%, avg=41.10, stdev=25.93, samples=298 iops : min= 1, max= 31, avg= 9.64, stdev= 6.54, samples=298 lat (msec) : 10=3.42%, 20=18.00%, 50=44.08%, 100=23.50%, 250=10.77% lat (msec) : 500=0.20%, 1000=0.03% cpu : usr=0.04%, sys=1.84%, ctx=4752, 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=179673: Fri Sep 4 20:16:27 2026 read: IOPS=9, BW=38.6KiB/s (39.5kB/s)(5940KiB/153964msec) clat (msec): min=4, max=970, avg=39.83, stdev=44.74 lat (msec): min=4, max=970, avg=39.84, stdev=44.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 57], 90.00th=[ 91], 95.00th=[ 123], | 99.00th=[ 197], 99.50th=[ 209], 99.90th=[ 255], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 143, per=25.35%, avg=39.29, stdev=26.60, samples=294 iops : min= 1, max= 35, avg= 9.18, stdev= 6.73, samples=294 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6348KiB/153964msec); 0 zone resets clat (msec): min=10, max=290, avg=59.41, stdev=42.03 lat (msec): min=10, max=290, avg=59.41, stdev=42.03 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 121], 95.00th=[ 144], | 99.00th=[ 203], 99.50th=[ 236], 99.90th=[ 262], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 128, per=25.20%, avg=41.08, stdev=26.36, samples=300 iops : min= 1, max= 32, avg= 9.63, stdev= 6.65, samples=300 lat (msec) : 10=3.22%, 20=19.04%, 50=43.55%, 100=21.61%, 250=12.40% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=1.87%, ctx=4770, 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=179674: Fri Sep 4 20:16:27 2026 read: IOPS=9, BW=39.3KiB/s (40.3kB/s)(6028KiB/153276msec) clat (msec): min=3, max=270, avg=39.69, stdev=35.76 lat (msec): min=3, max=270, avg=39.69, stdev=35.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 90], 95.00th=[ 115], | 99.00th=[ 174], 99.50th=[ 201], 99.90th=[ 226], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 135, per=25.54%, avg=39.59, stdev=26.36, samples=297 iops : min= 1, max= 33, avg= 9.27, stdev= 6.66, samples=297 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6260KiB/153276msec); 0 zone resets clat (msec): min=8, max=1024, avg=59.41, stdev=48.17 lat (msec): min=8, max=1024, avg=59.42, stdev=48.18 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 116], 95.00th=[ 142], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 288], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 136, per=24.97%, avg=40.71, stdev=26.80, samples=300 iops : min= 1, max= 34, avg= 9.54, stdev= 6.77, samples=300 lat (msec) : 4=0.03%, 10=2.96%, 20=18.72%, 50=43.72%, 100=23.37% lat (msec) : 250=10.97%, 500=0.20%, 2000=0.03% cpu : usr=0.06%, sys=1.85%, ctx=4823, 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=179675: Fri Sep 4 20:16:27 2026 read: IOPS=9, BW=39.6KiB/s (40.6kB/s)(6052KiB/152807msec) clat (msec): min=5, max=276, avg=39.05, stdev=34.71 lat (msec): min=5, max=276, avg=39.05, stdev=34.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 59], 90.00th=[ 89], 95.00th=[ 110], | 99.00th=[ 161], 99.50th=[ 199], 99.90th=[ 257], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 167, per=26.18%, avg=40.58, stdev=27.36, samples=291 iops : min= 1, max= 41, avg= 9.50, stdev= 6.88, samples=291 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6236KiB/152807msec); 0 zone resets clat (msec): min=9, max=978, avg=59.79, stdev=47.69 lat (msec): min=9, max=978, avg=59.79, stdev=47.69 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 86], 90.00th=[ 115], 95.00th=[ 142], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 347], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 135, per=24.87%, avg=40.53, stdev=25.24, samples=300 iops : min= 1, max= 33, avg= 9.49, stdev= 6.38, samples=300 lat (msec) : 10=3.52%, 20=16.99%, 50=44.34%, 100=24.32%, 250=10.58% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.06%, sys=1.92%, ctx=4680, 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=156KiB/s (160kB/s), 38.6KiB/s-39.6KiB/s (39.5kB/s-40.6kB/s), io=23.4MiB (24.6MB), run=152498-153964msec WRITE: bw=163KiB/s (167kB/s), 40.8KiB/s-41.3KiB/s (41.8kB/s-42.3kB/s), io=24.6MiB (25.7MB), run=152498-153964msec 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=179723: Fri Sep 4 20:17:03 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5920KiB/27853msec) clat (usec): min=40, max=155556, avg=41604.61, stdev=28706.03 lat (usec): min=41, max=155557, avg=41605.74, stdev=28706.11 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 58], 10.00th=[ 100], 20.00th=[ 20317], | 30.00th=[ 26346], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 61080], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[133694], 99.50th=[149947], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 95, max= 542, per=24.64%, avg=211.67, stdev=73.80, samples=55 iops : min= 5, max= 33, avg=12.44, stdev= 4.65, samples=55 write: IOPS=14, BW=229KiB/s (234kB/s)(6368KiB/27853msec); 0 zone resets clat (usec): min=1622, max=212534, avg=30937.45, stdev=29690.25 lat (usec): min=1624, max=212535, avg=30940.01, stdev=29689.88 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2343], 10.00th=[ 3294], 20.00th=[ 5473], | 30.00th=[ 8717], 40.00th=[ 16581], 50.00th=[ 22152], 60.00th=[ 28967], | 70.00th=[ 39060], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[121111], 99.50th=[145753], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 63, max= 414, per=25.23%, avg=228.05, stdev=79.76, samples=55 iops : min= 3, max= 25, avg=13.45, stdev= 5.03, samples=55 lat (usec) : 50=0.39%, 100=4.43%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=1.82%, 4=5.08%, 10=10.81%, 20=10.29%, 50=39.58% lat (msec) : 100=23.05%, 250=3.78% cpu : usr=0.07%, sys=6.47%, ctx=1677, 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=179724: Fri Sep 4 20:17:03 2026 read: IOPS=13, BW=209KiB/s (214kB/s)(5744KiB/27480msec) clat (usec): min=45, max=185270, avg=38787.50, stdev=27354.37 lat (usec): min=46, max=185272, avg=38788.48, stdev=27354.38 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 100], 20.00th=[ 19792], | 30.00th=[ 23462], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 39584], | 70.00th=[ 47973], 80.00th=[ 58459], 90.00th=[ 68682], 95.00th=[ 89654], | 99.00th=[131597], 99.50th=[179307], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 407, per=24.07%, avg=206.76, stdev=78.65, samples=54 iops : min= 1, max= 25, avg=12.13, stdev= 4.94, samples=54 write: IOPS=14, BW=238KiB/s (244kB/s)(6544KiB/27480msec); 0 zone resets clat (usec): min=1196, max=192218, avg=32958.64, stdev=32015.49 lat (usec): min=1197, max=192219, avg=32964.28, stdev=32012.03 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1893], 10.00th=[ 2737], 20.00th=[ 5211], | 30.00th=[ 8848], 40.00th=[ 15926], 50.00th=[ 25560], 60.00th=[ 31851], | 70.00th=[ 40633], 80.00th=[ 57410], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[125305], 99.50th=[127402], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 63, max= 444, per=26.13%, avg=236.26, stdev=82.82, samples=54 iops : min= 3, max= 27, avg=13.98, stdev= 5.20, samples=54 lat (usec) : 50=0.39%, 100=4.17%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=3.52%, 4=5.21%, 10=9.38%, 20=9.77%, 50=41.28% lat (msec) : 100=21.88%, 250=3.91% cpu : usr=0.07%, sys=6.81%, ctx=1707, 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=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=179725: Fri Sep 4 20:17:03 2026 read: IOPS=14, BW=227KiB/s (232kB/s)(6256KiB/27619msec) clat (usec): min=40, max=150888, avg=38596.18, stdev=25477.77 lat (usec): min=40, max=150889, avg=38597.25, stdev=25477.75 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 117], 20.00th=[ 19792], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 35914], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 57934], 90.00th=[ 70779], 95.00th=[ 82314], | 99.00th=[110625], 99.50th=[145753], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 62, max= 509, per=26.34%, avg=226.22, stdev=85.46, samples=54 iops : min= 3, max= 31, avg=13.33, stdev= 5.32, samples=54 write: IOPS=13, BW=218KiB/s (224kB/s)(6032KiB/27619msec); 0 zone resets clat (usec): min=1421, max=198569, avg=32899.46, stdev=32521.95 lat (usec): min=1423, max=198571, avg=32903.32, stdev=32520.65 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2040], 10.00th=[ 2966], 20.00th=[ 5145], | 30.00th=[ 8717], 40.00th=[ 13173], 50.00th=[ 23462], 60.00th=[ 32900], | 70.00th=[ 44827], 80.00th=[ 56886], 90.00th=[ 79168], 95.00th=[102237], | 99.00th=[141558], 99.50th=[158335], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 94, max= 415, per=23.79%, avg=215.07, stdev=90.53, samples=54 iops : min= 5, max= 25, avg=12.65, stdev= 5.66, samples=54 lat (usec) : 50=0.91%, 100=4.17%, 250=0.78% lat (msec) : 2=2.60%, 4=5.21%, 10=9.51%, 20=9.64%, 50=40.10% lat (msec) : 100=23.18%, 250=3.91% cpu : usr=0.08%, sys=6.31%, ctx=1685, 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=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=179726: Fri Sep 4 20:17:03 2026 read: IOPS=13, BW=221KiB/s (227kB/s)(6032KiB/27256msec) clat (usec): min=44, max=173844, avg=37268.95, stdev=25912.29 lat (usec): min=44, max=173845, avg=37270.11, stdev=25912.32 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 100], 20.00th=[ 18220], | 30.00th=[ 24773], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 57934], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[110625], 99.50th=[162530], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 63, max= 383, per=25.52%, avg=219.23, stdev=75.08, samples=53 iops : min= 3, max= 23, avg=12.92, stdev= 4.77, samples=53 write: IOPS=14, BW=230KiB/s (235kB/s)(6256KiB/27256msec); 0 zone resets clat (usec): min=1362, max=175510, avg=33371.63, stdev=31990.04 lat (usec): min=1363, max=175511, avg=33373.42, stdev=31990.05 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 2089], 10.00th=[ 3523], 20.00th=[ 5669], | 30.00th=[ 9110], 40.00th=[ 14353], 50.00th=[ 23200], 60.00th=[ 34866], | 70.00th=[ 43779], 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[173016], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 94, max= 427, per=25.25%, avg=228.30, stdev=77.63, samples=53 iops : min= 5, max= 26, avg=13.49, stdev= 4.87, samples=53 lat (usec) : 50=0.39%, 100=4.56%, 250=1.04%, 500=0.39%, 1000=0.52% lat (msec) : 2=2.21%, 4=3.65%, 10=10.29%, 20=11.07%, 50=39.97% lat (msec) : 100=23.18%, 250=2.73% cpu : usr=0.06%, sys=6.51%, ctx=1666, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=860KiB/s (881kB/s), 209KiB/s-227KiB/s (214kB/s-232kB/s), io=23.4MiB (24.5MB), run=27256-27853msec WRITE: bw=905KiB/s (926kB/s), 218KiB/s-238KiB/s (224kB/s-244kB/s), io=24.6MiB (25.8MB), run=27256-27853msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179728: Fri Sep 4 20:17:13 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(5920KiB/37247msec) clat (msec): min=6, max=208, avg=39.10, stdev=33.61 lat (msec): min=6, max=208, avg=39.10, stdev=33.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 92], 95.00th=[ 114], | 99.00th=[ 161], 99.50th=[ 192], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 31, max= 480, per=25.09%, avg=161.07, stdev=102.17, samples=71 iops : min= 1, max= 30, avg= 9.31, stdev= 6.52, samples=71 write: IOPS=10, BW=171KiB/s (175kB/s)(6368KiB/37247msec); 0 zone resets clat (msec): min=11, max=273, avg=57.09, stdev=39.79 lat (msec): min=11, max=273, avg=57.10, stdev=39.79 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 70], 80.00th=[ 85], 90.00th=[ 109], 95.00th=[ 126], | 99.00th=[ 232], 99.50th=[ 266], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 415, per=25.19%, avg=170.03, stdev=101.25, samples=73 iops : min= 1, max= 25, avg= 9.86, stdev= 6.42, samples=73 lat (msec) : 10=1.82%, 20=18.10%, 50=46.61%, 100=22.79%, 250=10.42% lat (msec) : 500=0.26% cpu : usr=0.07%, sys=2.10%, ctx=1292, 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=179729: Fri Sep 4 20:17:13 2026 read: IOPS=9, BW=154KiB/s (158kB/s)(5744KiB/37292msec) clat (msec): min=5, max=244, avg=39.14, stdev=32.47 lat (msec): min=5, max=244, avg=39.15, stdev=32.47 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 59], 90.00th=[ 83], 95.00th=[ 101], | 99.00th=[ 167], 99.50th=[ 199], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 383, per=24.08%, avg=154.61, stdev=94.98, samples=72 iops : min= 1, max= 23, avg= 8.89, stdev= 6.02, samples=72 write: IOPS=10, BW=175KiB/s (180kB/s)(6544KiB/37292msec); 0 zone resets clat (msec): min=12, max=214, avg=56.66, stdev=36.25 lat (msec): min=12, max=214, avg=56.66, stdev=36.25 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 55], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 111], 95.00th=[ 126], | 99.00th=[ 163], 99.50th=[ 184], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 480, per=25.72%, avg=173.60, stdev=97.75, samples=73 iops : min= 1, max= 30, avg=10.08, stdev= 6.21, samples=73 lat (msec) : 10=1.30%, 20=18.23%, 50=46.22%, 100=24.22%, 250=10.03% cpu : usr=0.06%, sys=2.11%, ctx=1218, 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=179730: Fri Sep 4 20:17:13 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6256KiB/36724msec) clat (msec): min=6, max=196, avg=37.80, stdev=32.29 lat (msec): min=6, max=197, avg=37.81, stdev=32.30 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 84], 95.00th=[ 105], | 99.00th=[ 161], 99.50th=[ 178], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 31, max= 544, per=26.63%, avg=170.97, stdev=113.01, samples=72 iops : min= 1, max= 34, avg= 9.92, stdev= 7.17, samples=72 write: IOPS=10, BW=164KiB/s (168kB/s)(6032KiB/36724msec); 0 zone resets clat (msec): min=12, max=237, avg=58.04, stdev=38.65 lat (msec): min=12, max=237, avg=58.04, stdev=38.65 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 44], 60.00th=[ 53], | 70.00th=[ 67], 80.00th=[ 91], 90.00th=[ 112], 95.00th=[ 138], | 99.00th=[ 201], 99.50th=[ 220], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 416, per=24.11%, avg=162.76, stdev=89.53, samples=72 iops : min= 1, max= 26, avg= 9.42, stdev= 5.69, samples=72 lat (msec) : 10=1.43%, 20=19.92%, 50=46.22%, 100=22.27%, 250=10.16% cpu : usr=0.07%, sys=2.07%, ctx=1200, 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=179731: Fri Sep 4 20:17:13 2026 read: IOPS=10, BW=164KiB/s (168kB/s)(6032KiB/36765msec) clat (msec): min=7, max=244, avg=41.19, stdev=36.63 lat (msec): min=7, max=244, avg=41.19, stdev=36.63 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 63], 90.00th=[ 89], 95.00th=[ 121], | 99.00th=[ 176], 99.50th=[ 207], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 480, per=25.74%, avg=165.24, stdev=103.29, samples=71 iops : min= 1, max= 30, avg= 9.56, stdev= 6.56, samples=71 write: IOPS=10, BW=170KiB/s (174kB/s)(6256KiB/36765msec); 0 zone resets clat (msec): min=11, max=271, avg=54.14, stdev=38.43 lat (msec): min=11, max=271, avg=54.15, stdev=38.42 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 41], 60.00th=[ 48], | 70.00th=[ 62], 80.00th=[ 78], 90.00th=[ 106], 95.00th=[ 129], | 99.00th=[ 194], 99.50th=[ 268], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 510, per=25.63%, avg=173.01, stdev=104.84, samples=71 iops : min= 1, max= 31, avg=10.06, stdev= 6.65, samples=71 lat (msec) : 10=0.78%, 20=17.84%, 50=50.52%, 100=21.22%, 250=9.38% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.00%, ctx=1208, 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=642KiB/s (658kB/s), 154KiB/s-170KiB/s (158kB/s-174kB/s), io=23.4MiB (24.5MB), run=36724-37292msec WRITE: bw=676KiB/s (692kB/s), 164KiB/s-175KiB/s (168kB/s-180kB/s), io=24.6MiB (25.8MB), run=36724-37292msec 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=179745: Fri Sep 4 20:17:25 2026 read: IOPS=2, BW=2104KiB/s (2154kB/s)(7168KiB/3407msec) clat (msec): min=13, max=419, avg=195.80, stdev=141.78 lat (msec): min=13, max=419, avg=195.81, stdev=141.78 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 14], 10.00th=[ 14], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 127], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 334], 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= 2011, max= 4096, per=59.88%, avg=2544.25, stdev=1034.58, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1503KiB/s (1539kB/s)(5120KiB/3407msec); 0 zone resets clat (msec): min=137, max=601, avg=386.34, stdev=177.52 lat (msec): min=137, max=601, avg=386.43, stdev=177.52 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2027, max= 4023, per=45.30%, avg=2695.00, stdev=1150.09, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 20=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=14.45%, ctx=291, 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=179748: Fri Sep 4 20:17:25 2026 read: IOPS=0, BW=425KiB/s (435kB/s)(2048KiB/4819msec) clat (usec): min=491, max=657370, avg=328930.92, stdev=464483.11 lat (usec): min=493, max=657372, avg=328932.77, stdev=464483.50 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[ 494], | 30.00th=[ 494], 40.00th=[ 494], 50.00th=[ 494], 60.00th=[658506], | 70.00th=[658506], 80.00th=[658506], 90.00th=[658506], 95.00th=[658506], | 99.00th=[658506], 99.50th=[658506], 99.90th=[658506], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 2027, max= 2035, per=47.80%, avg=2031.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2125KiB/s (2176kB/s)(10.0MiB/4819msec); 0 zone resets clat (msec): min=133, max=1279, avg=392.27, stdev=321.61 lat (msec): min=133, max=1280, avg=392.37, stdev=321.60 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 268], 50.00th=[ 292], 60.00th=[ 351], | 70.00th=[ 368], 80.00th=[ 376], 90.00th=[ 380], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 1448, max= 6107, per=43.95%, avg=2614.50, stdev=1726.91, samples=6 iops : min= 1, max= 5, avg= 1.67, stdev= 1.63, samples=6 lat (usec) : 500=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=12.47%, ctx=193, 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=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=179749: Fri Sep 4 20:17:25 2026 read: IOPS=1, BW=1780KiB/s (1823kB/s)(6144KiB/3451msec) clat (usec): min=386, max=373468, avg=95023.79, stdev=155717.05 lat (usec): min=387, max=373469, avg=95024.74, stdev=155716.83 clat percentiles (usec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 474], | 30.00th=[ 474], 40.00th=[ 482], 50.00th=[ 482], 60.00th=[ 5866], | 70.00th=[189793], 80.00th=[189793], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 2011, max= 4087, per=79.78%, avg=3389.67, stdev=1193.99, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1780KiB/s (1823kB/s)(6144KiB/3451msec); 0 zone resets clat (msec): min=198, max=709, avg=432.76, stdev=215.39 lat (msec): min=198, max=709, avg=432.95, stdev=215.25 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 485], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1448, max= 4055, per=38.97%, avg=2318.40, stdev=1003.00, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=25.00% lat (msec) : 10=8.33%, 250=25.00%, 500=25.00%, 750=16.67% cpu : usr=0.06%, sys=11.54%, ctx=163, 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=179750: Fri Sep 4 20:17:25 2026 read: IOPS=1, BW=1214KiB/s (1243kB/s)(5120KiB/4219msec) clat (usec): min=458, max=887930, avg=242008.55, stdev=369794.37 lat (usec): min=459, max=887931, avg=242009.59, stdev=369794.46 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 1205], 40.00th=[ 1205], 50.00th=[154141], 60.00th=[154141], | 70.00th=[166724], 80.00th=[166724], 90.00th=[884999], 95.00th=[884999], | 99.00th=[884999], 99.50th=[884999], 99.90th=[884999], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 4023, max= 4087, per=95.43%, avg=4055.00, stdev=45.25, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1699KiB/s (1740kB/s)(7168KiB/4219msec); 0 zone resets clat (msec): min=110, max=764, avg=397.15, stdev=219.25 lat (msec): min=110, max=764, avg=397.24, stdev=219.24 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 192], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 430], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 514], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1440, max= 4087, per=40.30%, avg=2397.25, stdev=1160.44, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=12.54%, ctx=188, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4250KiB/s (4352kB/s), 425KiB/s-2104KiB/s (435kB/s-2154kB/s), io=20.0MiB (20.0MB), run=3407-4819msec WRITE: bw=5950KiB/s (6093kB/s), 1503KiB/s-2125KiB/s (1539kB/s-2176kB/s), io=28.0MiB (29.4MB), run=3407-4819msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179743: Fri Sep 4 20:17:25 2026 read: IOPS=1, BW=1582KiB/s (1620kB/s)(7168KiB/4531msec) clat (msec): min=76, max=527, avg=236.84, stdev=163.71 lat (msec): min=76, max=527, avg=236.84, stdev=163.71 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 94], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 176], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 368], 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= 2031, max= 2801, per=55.49%, avg=2190.80, stdev=341.19, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1130KiB/s (1157kB/s)(5120KiB/4531msec); 0 zone resets clat (msec): min=255, max=843, avg=544.35, stdev=212.90 lat (msec): min=255, max=846, avg=545.02, stdev=213.94 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 592], 80.00th=[ 592], 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= 1450, max= 2035, per=34.53%, avg=1908.60, stdev=256.85, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=16.67%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=4.72%, ctx=101, 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=179744: Fri Sep 4 20:17:25 2026 read: IOPS=0, BW=395KiB/s (404kB/s)(2048KiB/5187msec) clat (msec): min=135, max=474, avg=304.85, stdev=239.77 lat (msec): min=135, max=474, avg=304.86, stdev=239.77 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 136], 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= 1633, max= 1903, per=44.78%, avg=1768.00, stdev=190.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1974KiB/s (2022kB/s)(10.0MiB/5187msec); 0 zone resets clat (msec): min=139, max=1429, avg=445.74, stdev=380.71 lat (msec): min=139, max=1429, avg=445.82, stdev=380.72 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 190], | 30.00th=[ 249], 40.00th=[ 275], 50.00th=[ 279], 60.00th=[ 326], | 70.00th=[ 384], 80.00th=[ 489], 90.00th=[ 693], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1633, max= 4087, per=46.59%, avg=2575.17, stdev=1170.24, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=4.47%, ctx=192, 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=179746: Fri Sep 4 20:17:25 2026 read: IOPS=1, BW=1583KiB/s (1621kB/s)(6144KiB/3882msec) clat (msec): min=64, max=1381, avg=371.42, stdev=511.10 lat (msec): min=64, max=1381, avg=371.42, stdev=511.10 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 77], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 167], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1633, max= 4096, per=82.74%, avg=3266.67, stdev=1414.85, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1583KiB/s (1621kB/s)(6144KiB/3882msec); 0 zone resets clat (msec): min=113, max=583, avg=271.89, stdev=173.45 lat (msec): min=113, max=583, avg=272.04, stdev=173.41 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 131], | 30.00th=[ 131], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 257], | 70.00th=[ 338], 80.00th=[ 338], 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= 1726, max= 4096, per=58.55%, avg=3236.00, stdev=1311.91, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.66%, ctx=74, 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=179747: Fri Sep 4 20:17:25 2026 read: IOPS=1, BW=1042KiB/s (1067kB/s)(5120KiB/4913msec) clat (msec): min=83, max=819, avg=321.07, stdev=303.77 lat (msec): min=83, max=819, avg=321.07, stdev=303.77 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 86], 40.00th=[ 86], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 376], 80.00th=[ 376], 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= 1450, max= 4071, per=63.76%, avg=2517.33, stdev=1376.52, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1459KiB/s (1494kB/s)(7168KiB/4913msec); 0 zone resets clat (msec): min=123, max=2096, avg=467.47, stdev=721.40 lat (msec): min=123, max=2096, avg=467.56, stdev=721.41 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 203], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 313], 90.00th=[ 2089], 95.00th=[ 2089], | 99.00th=[ 2089], 99.50th=[ 2089], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 2035, max= 3992, per=52.92%, avg=2925.00, stdev=990.43, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=2.95%, ctx=94, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=3948KiB/s (4043kB/s), 395KiB/s-1583KiB/s (404kB/s-1621kB/s), io=20.0MiB (20.0MB), run=3882-5187msec WRITE: bw=5528KiB/s (5660kB/s), 1130KiB/s-1974KiB/s (1157kB/s-2022kB/s), io=28.0MiB (29.4MB), run=3882-5187msec 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=179762: Fri Sep 4 20:17:38 2026 read: IOPS=1, BW=6138KiB/s (6285kB/s)(12.0MiB/2002msec) clat (msec): min=543, max=723, avg=650.20, stdev=94.89 lat (msec): min=543, max=723, avg=650.20, stdev=94.89 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=6.90%, ctx=59, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179763: Fri Sep 4 20:17:38 2026 read: IOPS=0, BW=1400KiB/s (1434kB/s)(4096KiB/2925msec) clat (nsec): min=1577.8M, max=1577.8M, avg=1577833792.00, stdev= 0.00 lat (nsec): min=1577.8M, max=1577.8M, avg=1577835853.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1586], 5.00th=[ 1586], 10.00th=[ 1586], 20.00th=[ 1586], | 30.00th=[ 1586], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2801KiB/s (2868kB/s)(8192KiB/2925msec); 0 zone resets clat (msec): min=564, max=720, avg=642.16, stdev=110.09 lat (msec): min=564, max=720, avg=642.45, stdev=110.12 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8159, max= 8159, per=72.84%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.03%, ctx=53, 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=179764: Fri Sep 4 20:17:38 2026 write: IOPS=1, BW=4373KiB/s (4478kB/s)(12.0MiB/2810msec); 0 zone resets clat (msec): min=228, max=1873, avg=903.14, stdev=861.29 lat (msec): min=229, max=1873, avg=903.66, stdev=861.05 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8078, max= 8143, per=72.40%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.70%, ctx=44, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179765: Fri Sep 4 20:17:38 2026 write: IOPS=1, BW=4823KiB/s (4938kB/s)(12.0MiB/2548msec); 0 zone resets clat (msec): min=206, max=1177, avg=803.52, stdev=522.75 lat (msec): min=206, max=1178, avg=803.88, stdev=522.78 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8143, max= 8159, per=72.76%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.04%, sys=5.97%, ctx=67, 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=5601KiB/s (5736kB/s), 1400KiB/s-6138KiB/s (1434kB/s-6285kB/s), io=16.0MiB (16.8MB), run=2002-2925msec WRITE: bw=10.9MiB/s (11.5MB/s), 2801KiB/s-4823KiB/s (2868kB/s-4938kB/s), io=32.0MiB (33.6MB), run=2548-2925msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179758: Fri Sep 4 20:17:39 2026 read: IOPS=1, BW=6393KiB/s (6547kB/s)(12.0MiB/1922msec) clat (msec): min=558, max=704, avg=626.04, stdev=73.58 lat (msec): min=558, max=704, avg=626.04, stdev=73.58 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=24.31%, ctx=433, 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=179759: Fri Sep 4 20:17:39 2026 read: IOPS=0, BW=1615KiB/s (1653kB/s)(4096KiB/2537msec) clat (nsec): min=579948k, max=579948k, avg=579948143.00, stdev= 0.00 lat (nsec): min=579951k, max=579951k, avg=579950747.00, 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3229KiB/s (3307kB/s)(8192KiB/2537msec); 0 zone resets clat (msec): min=802, max=1073, avg=937.98, stdev=191.19 lat (msec): min=803, max=1073, avg=938.30, stdev=191.13 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 1070], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7772, max= 7772, per=72.13%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.78%, ctx=82, 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=179760: Fri Sep 4 20:17:39 2026 write: IOPS=0, BW=4041KiB/s (4138kB/s)(12.0MiB/3041msec); 0 zone resets clat (msec): min=181, max=2063, avg=987.17, stdev=969.66 lat (msec): min=182, max=2067, avg=988.82, stdev=971.84 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7772, max= 7772, per=72.13%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.07%, sys=5.33%, ctx=69, 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=179761: Fri Sep 4 20:17:39 2026 write: IOPS=1, BW=5207KiB/s (5332kB/s)(12.0MiB/2360msec); 0 zone resets clat (msec): min=342, max=1309, avg=755.15, stdev=498.48 lat (msec): min=343, max=1309, avg=755.50, stdev=498.36 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 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= 7772, max= 8126, per=73.77%, avg=7949.00, stdev=250.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.46%, ctx=81, 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=6458KiB/s (6613kB/s), 1615KiB/s-6393KiB/s (1653kB/s-6547kB/s), io=16.0MiB (16.8MB), run=1922-2537msec WRITE: bw=10.5MiB/s (11.0MB/s), 3229KiB/s-5207KiB/s (3307kB/s-5332kB/s), io=32.0MiB (33.6MB), run=2360-3041msec