== sanity test 398b: DIO and buffer IO race ============== 09:44:23 (1787838263) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.93913 s, 7.3 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=179516: Thu Aug 27 09:47:11 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5992KiB/145312msec) clat (usec): min=30, max=349134, avg=51896.37, stdev=36081.62 lat (usec): min=30, max=349135, avg=51900.27, stdev=36084.70 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 2245], 10.00th=[ 18482], 20.00th=[ 25560], | 30.00th=[ 31851], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 51643], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[112722], | 99.00th=[173016], 99.50th=[204473], 99.90th=[346031], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 111, per=25.19%, avg=40.81, stdev=18.61, samples=286 iops : min= 1, max= 27, avg= 9.54, stdev= 4.69, samples=286 write: IOPS=10, BW=43.3KiB/s (44.4kB/s)(6296KiB/145312msec); 0 zone resets clat (usec): min=933, max=340554, avg=42776.21, stdev=46986.04 lat (usec): min=935, max=340556, avg=42778.10, stdev=46986.10 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1467], 20.00th=[ 3818], | 30.00th=[ 8455], 40.00th=[ 16909], 50.00th=[ 29492], 60.00th=[ 40633], | 70.00th=[ 53216], 80.00th=[ 72877], 90.00th=[103285], 95.00th=[139461], | 99.00th=[204473], 99.50th=[244319], 99.90th=[295699], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 141, per=25.31%, avg=43.04, stdev=19.99, samples=285 iops : min= 1, max= 35, avg=10.10, stdev= 5.06, samples=285 lat (usec) : 50=0.29%, 100=1.99%, 250=0.07%, 1000=0.20% lat (msec) : 2=6.48%, 4=4.00%, 10=6.35%, 20=7.81%, 50=35.42% lat (msec) : 100=27.44%, 250=9.57%, 500=0.39% cpu : usr=0.08%, sys=4.70%, ctx=6269, 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=179517: Thu Aug 27 09:47:11 2026 read: IOPS=10, BW=40.8KiB/s (41.7kB/s)(5940KiB/145711msec) clat (usec): min=35, max=363990, avg=55291.77, stdev=39789.44 lat (usec): min=35, max=363991, avg=55302.82, stdev=39788.57 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11863], 10.00th=[ 19268], 20.00th=[ 26084], | 30.00th=[ 32637], 40.00th=[ 39060], 50.00th=[ 46400], 60.00th=[ 56361], | 70.00th=[ 66847], 80.00th=[ 79168], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[202376], 99.50th=[254804], 99.90th=[350225], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 88, per=24.81%, avg=40.20, stdev=16.59, samples=286 iops : min= 1, max= 22, avg= 9.39, stdev= 4.19, samples=286 write: IOPS=10, BW=43.6KiB/s (44.6kB/s)(6348KiB/145711msec); 0 zone resets clat (usec): min=991, max=418585, avg=39949.18, stdev=43876.35 lat (usec): min=993, max=418587, avg=39956.38, stdev=43871.95 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1401], 20.00th=[ 3687], | 30.00th=[ 7767], 40.00th=[ 15270], 50.00th=[ 27395], 60.00th=[ 38011], | 70.00th=[ 50594], 80.00th=[ 68682], 90.00th=[ 99091], 95.00th=[127402], | 99.00th=[191890], 99.50th=[223347], 99.90th=[295699], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 119, per=25.32%, avg=43.05, stdev=21.22, samples=285 iops : min= 1, max= 29, avg=10.11, stdev= 5.36, samples=285 lat (usec) : 50=0.23%, 100=1.66%, 250=0.10%, 500=0.03%, 1000=0.07% lat (msec) : 2=7.03%, 4=3.74%, 10=6.64%, 20=8.43%, 50=34.11% lat (msec) : 100=28.26%, 250=9.34%, 500=0.36% cpu : usr=0.08%, sys=4.79%, ctx=6307, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179518: Thu Aug 27 09:47:11 2026 read: IOPS=10, BW=40.9KiB/s (41.8kB/s)(6028KiB/147509msec) clat (usec): min=28, max=372792, avg=55534.23, stdev=38200.16 lat (usec): min=29, max=372793, avg=55542.64, stdev=38197.54 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 10814], 10.00th=[ 17957], 20.00th=[ 25560], | 30.00th=[ 33162], 40.00th=[ 39584], 50.00th=[ 48497], 60.00th=[ 56886], | 70.00th=[ 67634], 80.00th=[ 80217], 90.00th=[104334], 95.00th=[126354], | 99.00th=[177210], 99.50th=[210764], 99.90th=[291505], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 95, per=24.87%, avg=40.30, stdev=16.88, samples=290 iops : min= 1, max= 23, avg= 9.41, stdev= 4.24, samples=290 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6260KiB/147509msec); 0 zone resets clat (usec): min=926, max=372059, avg=40653.94, stdev=43071.77 lat (usec): min=927, max=372062, avg=40656.20, stdev=43071.63 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1434], 20.00th=[ 3818], | 30.00th=[ 7308], 40.00th=[ 16909], 50.00th=[ 28443], 60.00th=[ 39060], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[100140], 95.00th=[127402], | 99.00th=[177210], 99.50th=[210764], 99.90th=[263193], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 127, per=24.69%, avg=41.97, stdev=19.68, samples=289 iops : min= 1, max= 31, avg= 9.83, stdev= 4.96, samples=289 lat (usec) : 50=0.42%, 100=1.66%, 250=0.13%, 500=0.03%, 1000=0.20% lat (msec) : 2=6.51%, 4=3.84%, 10=7.00%, 20=7.75%, 50=32.29% lat (msec) : 100=29.59%, 250=10.38%, 500=0.20% cpu : usr=0.08%, sys=4.77%, ctx=6485, 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=179519: Thu Aug 27 09:47:11 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6052KiB/146914msec) clat (usec): min=48, max=421596, avg=53687.51, stdev=38255.20 lat (usec): min=49, max=421597, avg=53690.03, stdev=38255.41 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 429], 10.00th=[ 18482], 20.00th=[ 25297], | 30.00th=[ 32113], 40.00th=[ 38536], 50.00th=[ 45351], 60.00th=[ 54264], | 70.00th=[ 65274], 80.00th=[ 77071], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[181404], 99.50th=[217056], 99.90th=[337642], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 7, max= 110, per=25.65%, avg=41.56, stdev=17.03, samples=283 iops : min= 1, max= 27, avg= 9.73, stdev= 4.31, samples=283 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6236KiB/146914msec); 0 zone resets clat (usec): min=955, max=369994, avg=42008.47, stdev=46361.22 lat (usec): min=956, max=369996, avg=42011.46, stdev=46361.02 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1221], 10.00th=[ 1549], 20.00th=[ 3589], | 30.00th=[ 7373], 40.00th=[ 17171], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[103285], 95.00th=[128451], | 99.00th=[202376], 99.50th=[254804], 99.90th=[354419], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 103, per=24.73%, avg=42.03, stdev=20.03, samples=288 iops : min= 1, max= 25, avg= 9.85, stdev= 5.07, samples=288 lat (usec) : 50=0.10%, 100=2.08%, 250=0.23%, 500=0.07%, 1000=0.10% lat (msec) : 2=6.51%, 4=4.49%, 10=6.38%, 20=7.36%, 50=34.41% lat (msec) : 100=28.16%, 250=9.73%, 500=0.39% cpu : usr=0.07%, sys=4.62%, ctx=6317, 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=163KiB/s (167kB/s), 40.8KiB/s-41.2KiB/s (41.7kB/s-42.2kB/s), io=23.4MiB (24.6MB), run=145312-147509msec WRITE: bw=170KiB/s (175kB/s), 42.4KiB/s-43.6KiB/s (43.5kB/s-44.6kB/s), io=24.6MiB (25.7MB), run=145312-147509msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179511: Thu Aug 27 09:47:57 2026 read: IOPS=7, BW=30.9KiB/s (31.7kB/s)(5992KiB/193835msec) clat (msec): min=5, max=651, avg=49.87, stdev=49.42 lat (msec): min=5, max=651, avg=49.87, stdev=49.42 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 113], 95.00th=[ 150], | 99.00th=[ 234], 99.50th=[ 279], 99.90th=[ 414], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 135, per=26.27%, avg=32.31, stdev=23.17, samples=359 iops : min= 1, max= 33, avg= 7.40, stdev= 5.81, samples=359 write: IOPS=8, BW=32.5KiB/s (33.3kB/s)(6296KiB/193835msec); 0 zone resets clat (msec): min=12, max=554, avg=75.41, stdev=57.98 lat (msec): min=12, max=554, avg=75.41, stdev=57.98 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 87], 80.00th=[ 117], 90.00th=[ 148], 95.00th=[ 186], | 99.00th=[ 271], 99.50th=[ 342], 99.90th=[ 506], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=32.12, stdev=22.29, samples=379 iops : min= 1, max= 25, avg= 7.35, stdev= 5.60, samples=379 lat (msec) : 10=1.63%, 20=12.66%, 50=42.42%, 100=24.28%, 250=17.97% lat (msec) : 500=0.94%, 750=0.10% cpu : usr=0.05%, sys=1.51%, ctx=4936, 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=179512: Thu Aug 27 09:47:57 2026 read: IOPS=7, BW=30.6KiB/s (31.4kB/s)(5940KiB/193947msec) clat (msec): min=5, max=828, avg=48.92, stdev=49.15 lat (msec): min=5, max=828, avg=48.92, stdev=49.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 72], 90.00th=[ 111], 95.00th=[ 142], | 99.00th=[ 215], 99.50th=[ 243], 99.90th=[ 435], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 134, per=25.88%, avg=31.83, stdev=23.42, samples=361 iops : min= 1, max= 33, avg= 7.28, stdev= 5.88, samples=361 write: IOPS=8, BW=32.7KiB/s (33.5kB/s)(6348KiB/193947msec); 0 zone resets clat (msec): min=12, max=477, avg=76.16, stdev=57.30 lat (msec): min=12, max=477, avg=76.17, stdev=57.30 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 89], 80.00th=[ 114], 90.00th=[ 150], 95.00th=[ 188], | 99.00th=[ 292], 99.50th=[ 347], 99.90th=[ 439], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 103, per=25.26%, avg=32.58, stdev=21.34, samples=376 iops : min= 1, max= 25, avg= 7.47, stdev= 5.37, samples=376 lat (msec) : 10=1.92%, 20=12.27%, 50=41.05%, 100=25.85%, 250=17.87% lat (msec) : 500=1.01%, 1000=0.03% cpu : usr=0.06%, sys=1.52%, ctx=4717, 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=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=179513: Thu Aug 27 09:47:57 2026 read: IOPS=7, BW=31.2KiB/s (31.9kB/s)(6028KiB/193201msec) clat (msec): min=6, max=553, avg=49.42, stdev=47.97 lat (msec): min=6, max=553, avg=49.42, stdev=47.97 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 112], 95.00th=[ 144], | 99.00th=[ 222], 99.50th=[ 279], 99.90th=[ 401], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 135, per=25.87%, avg=31.83, stdev=22.30, samples=367 iops : min= 1, max= 33, avg= 7.28, stdev= 5.59, samples=367 write: IOPS=8, BW=32.4KiB/s (33.2kB/s)(6260KiB/193201msec); 0 zone resets clat (msec): min=11, max=873, avg=75.59, stdev=59.83 lat (msec): min=11, max=873, avg=75.59, stdev=59.83 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 89], 80.00th=[ 112], 90.00th=[ 148], 95.00th=[ 186], | 99.00th=[ 284], 99.50th=[ 338], 99.90th=[ 558], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 103, per=25.20%, avg=32.51, stdev=22.22, samples=373 iops : min= 1, max= 25, avg= 7.45, stdev= 5.59, samples=373 lat (msec) : 10=1.37%, 20=12.66%, 50=42.64%, 100=24.87%, 250=17.42% lat (msec) : 500=0.94%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.55%, ctx=4874, 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=179514: Thu Aug 27 09:47:57 2026 read: IOPS=7, BW=31.2KiB/s (31.9kB/s)(6052KiB/193965msec) clat (msec): min=6, max=556, avg=49.18, stdev=46.70 lat (msec): min=6, max=556, avg=49.18, stdev=46.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 52], 80.00th=[ 74], 90.00th=[ 113], 95.00th=[ 148], | 99.00th=[ 220], 99.50th=[ 234], 99.90th=[ 296], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 134, per=26.57%, avg=32.68, stdev=23.39, samples=358 iops : min= 1, max= 33, avg= 7.50, stdev= 5.87, samples=358 write: IOPS=8, BW=32.1KiB/s (32.9kB/s)(6236KiB/193965msec); 0 zone resets clat (msec): min=11, max=868, avg=76.41, stdev=60.98 lat (msec): min=11, max=868, avg=76.41, stdev=60.98 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 56], 60.00th=[ 69], | 70.00th=[ 88], 80.00th=[ 114], 90.00th=[ 155], 95.00th=[ 186], | 99.00th=[ 275], 99.50th=[ 351], 99.90th=[ 502], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 111, per=24.86%, avg=32.07, stdev=21.74, samples=375 iops : min= 1, max= 27, avg= 7.34, stdev= 5.47, samples=375 lat (msec) : 10=1.66%, 20=12.86%, 50=41.83%, 100=24.54%, 250=18.10% lat (msec) : 500=0.91%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.58%, ctx=4891, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=124KiB/s (127kB/s), 30.6KiB/s-31.2KiB/s (31.4kB/s-31.9kB/s), io=23.4MiB (24.6MB), run=193201-193965msec WRITE: bw=130KiB/s (133kB/s), 32.1KiB/s-32.7KiB/s (32.9kB/s-33.5kB/s), io=24.6MiB (25.7MB), run=193201-193965msec 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=179572: Thu Aug 27 09:48:42 2026 read: IOPS=11, BW=180KiB/s (184kB/s)(5920KiB/32920msec) clat (usec): min=50, max=279223, avg=47798.37, stdev=35921.78 lat (usec): min=51, max=279225, avg=47799.58, stdev=35921.83 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 1172], 20.00th=[ 24511], | 30.00th=[ 29230], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49546], | 70.00th=[ 57410], 80.00th=[ 67634], 90.00th=[ 84411], 95.00th=[101188], | 99.00th=[191890], 99.50th=[240124], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 342, per=26.31%, avg=179.68, stdev=68.38, samples=65 iops : min= 1, max= 21, avg=10.42, stdev= 4.38, samples=65 write: IOPS=12, BW=193KiB/s (198kB/s)(6368KiB/32920msec); 0 zone resets clat (usec): min=1404, max=245460, avg=38090.81, stdev=40166.72 lat (usec): min=1406, max=245462, avg=38092.80, stdev=40166.77 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1827], 10.00th=[ 2376], 20.00th=[ 6063], | 30.00th=[ 9110], 40.00th=[ 14746], 50.00th=[ 24773], 60.00th=[ 34866], | 70.00th=[ 47973], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[120062], | 99.00th=[202376], 99.50th=[223347], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 407, per=26.92%, avg=193.26, stdev=82.74, samples=65 iops : min= 1, max= 25, avg=11.28, stdev= 5.21, samples=65 lat (usec) : 100=3.52%, 250=0.65%, 500=0.39%, 750=0.13% lat (msec) : 2=4.17%, 4=3.39%, 10=9.51%, 20=9.77%, 50=34.51% lat (msec) : 100=27.21%, 250=6.64%, 500=0.13% cpu : usr=0.07%, sys=5.52%, ctx=1626, 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=179575: Thu Aug 27 09:48:42 2026 read: IOPS=10, BW=169KiB/s (174kB/s)(5744KiB/33889msec) clat (usec): min=47, max=158140, avg=50209.11, stdev=31105.81 lat (usec): min=48, max=158142, avg=50210.24, stdev=31105.82 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 914], 20.00th=[ 27395], | 30.00th=[ 33817], 40.00th=[ 38536], 50.00th=[ 46924], 60.00th=[ 54789], | 70.00th=[ 62129], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[111674], | 99.00th=[143655], 99.50th=[156238], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 31, max= 317, per=24.75%, avg=169.06, stdev=59.46, samples=67 iops : min= 1, max= 19, avg= 9.75, stdev= 3.72, samples=67 write: IOPS=12, BW=193KiB/s (198kB/s)(6544KiB/33889msec); 0 zone resets clat (usec): min=1399, max=199467, avg=38082.83, stdev=35801.74 lat (usec): min=1401, max=199469, avg=38086.69, stdev=35803.20 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1795], 10.00th=[ 3032], 20.00th=[ 5669], | 30.00th=[ 11994], 40.00th=[ 20579], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[145753], 99.50th=[166724], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 477, per=26.80%, avg=192.42, stdev=77.90, samples=67 iops : min= 1, max= 29, avg=11.21, stdev= 4.86, samples=67 lat (usec) : 50=0.26%, 100=3.78%, 250=0.39%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.91%, 4=3.52%, 10=7.81%, 20=7.29%, 50=35.81% lat (msec) : 100=29.56%, 250=7.42% cpu : usr=0.07%, sys=5.49%, ctx=1669, 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=179576: Thu Aug 27 09:48:42 2026 read: IOPS=11, BW=178KiB/s (183kB/s)(6256KiB/35064msec) clat (usec): min=51, max=184971, avg=50127.54, stdev=31432.75 lat (usec): min=52, max=184973, avg=50129.09, stdev=31432.81 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 63], 10.00th=[ 16319], 20.00th=[ 27132], | 30.00th=[ 34866], 40.00th=[ 40633], 50.00th=[ 46400], 60.00th=[ 52691], | 70.00th=[ 60031], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[107480], | 99.00th=[162530], 99.50th=[181404], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 318, per=26.23%, avg=179.14, stdev=61.35, samples=69 iops : min= 1, max= 19, avg=10.41, stdev= 3.84, samples=69 write: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35064msec); 0 zone resets clat (usec): min=1426, max=241188, avg=40041.51, stdev=39570.16 lat (usec): min=1427, max=241190, avg=40043.69, stdev=39570.16 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1909], 10.00th=[ 3720], 20.00th=[ 7177], | 30.00th=[ 11469], 40.00th=[ 20579], 50.00th=[ 29754], 60.00th=[ 38536], | 70.00th=[ 47973], 80.00th=[ 64750], 90.00th=[ 96994], 95.00th=[124257], | 99.00th=[173016], 99.50th=[231736], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 405, per=23.96%, avg=172.03, stdev=81.46, samples=69 iops : min= 1, max= 25, avg= 9.97, stdev= 5.13, samples=69 lat (usec) : 100=3.78%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=2.73%, 4=2.73%, 10=7.94%, 20=6.90%, 50=39.71% lat (msec) : 100=27.21%, 250=8.20% cpu : usr=0.06%, sys=5.32%, ctx=1718, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179577: Thu Aug 27 09:48:42 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(6032KiB/33717msec) clat (usec): min=42, max=253552, avg=49854.17, stdev=37555.10 lat (usec): min=43, max=253556, avg=49855.60, stdev=37555.19 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 63], 10.00th=[ 88], 20.00th=[ 23462], | 30.00th=[ 31851], 40.00th=[ 36963], 50.00th=[ 44303], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[121111], | 99.00th=[189793], 99.50th=[196084], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 349, per=26.59%, avg=181.62, stdev=67.80, samples=65 iops : min= 1, max= 21, avg=10.57, stdev= 4.31, samples=65 write: IOPS=11, BW=186KiB/s (190kB/s)(6256KiB/33717msec); 0 zone resets clat (usec): min=1372, max=186911, avg=37130.89, stdev=36624.51 lat (usec): min=1373, max=186913, avg=37133.06, stdev=36624.53 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1942], 10.00th=[ 3425], 20.00th=[ 6194], | 30.00th=[ 10814], 40.00th=[ 17433], 50.00th=[ 27395], 60.00th=[ 36439], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 87557], 95.00th=[117965], | 99.00th=[168821], 99.50th=[170918], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 318, per=25.99%, avg=186.59, stdev=64.34, samples=66 iops : min= 1, max= 19, avg=10.89, stdev= 4.01, samples=66 lat (usec) : 50=0.13%, 100=5.08%, 250=0.39%, 500=0.13% lat (msec) : 2=2.73%, 4=4.43%, 10=7.68%, 20=9.51%, 50=35.94% lat (msec) : 100=26.82%, 250=7.03%, 500=0.13% cpu : usr=0.06%, sys=5.49%, ctx=1632, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=683KiB/s (699kB/s), 169KiB/s-180KiB/s (174kB/s-184kB/s), io=23.4MiB (24.5MB), run=32920-35064msec WRITE: bw=719KiB/s (736kB/s), 172KiB/s-193KiB/s (176kB/s-198kB/s), io=24.6MiB (25.8MB), run=32920-35064msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179570: Thu Aug 27 09:48:56 2026 read: IOPS=7, BW=122KiB/s (125kB/s)(5920KiB/48637msec) clat (msec): min=8, max=256, avg=50.95, stdev=44.04 lat (msec): min=8, max=256, avg=50.95, stdev=44.04 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 114], 95.00th=[ 157], | 99.00th=[ 209], 99.50th=[ 241], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 376, per=25.07%, avg=123.34, stdev=74.53, samples=94 iops : min= 1, max= 23, avg= 6.93, stdev= 4.71, samples=94 write: IOPS=8, BW=131KiB/s (134kB/s)(6368KiB/48637msec); 0 zone resets clat (msec): min=15, max=309, avg=74.02, stdev=47.48 lat (msec): min=15, max=309, avg=74.03, stdev=47.48 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 51], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 85], 80.00th=[ 102], 90.00th=[ 140], 95.00th=[ 163], | 99.00th=[ 259], 99.50th=[ 305], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 316, per=25.10%, avg=130.00, stdev=72.88, samples=96 iops : min= 1, max= 19, avg= 7.34, stdev= 4.64, samples=96 lat (msec) : 10=0.52%, 20=8.46%, 50=44.01%, 100=30.34%, 250=15.89% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.61%, ctx=1194, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179571: Thu Aug 27 09:48:56 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(5744KiB/47838msec) clat (msec): min=6, max=240, avg=48.45, stdev=39.34 lat (msec): min=6, max=240, avg=48.45, stdev=39.34 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 52], 80.00th=[ 69], 90.00th=[ 104], 95.00th=[ 142], | 99.00th=[ 190], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 30, max= 350, per=25.61%, avg=126.02, stdev=80.17, samples=89 iops : min= 1, max= 21, avg= 7.09, stdev= 5.10, samples=89 write: IOPS=8, BW=137KiB/s (140kB/s)(6544KiB/47838msec); 0 zone resets clat (msec): min=16, max=337, avg=73.51, stdev=43.03 lat (msec): min=16, max=337, avg=73.52, stdev=43.04 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 33], 20.00th=[ 40], | 30.00th=[ 47], 40.00th=[ 54], 50.00th=[ 61], 60.00th=[ 72], | 70.00th=[ 88], 80.00th=[ 105], 90.00th=[ 132], 95.00th=[ 150], | 99.00th=[ 209], 99.50th=[ 228], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 376, per=26.63%, avg=137.97, stdev=73.27, samples=93 iops : min= 1, max= 23, avg= 7.84, stdev= 4.64, samples=93 lat (msec) : 10=0.91%, 20=7.16%, 50=44.14%, 100=30.73%, 250=16.93% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=1.68%, ctx=1182, 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=179573: Thu Aug 27 09:48:56 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(6256KiB/48370msec) clat (msec): min=8, max=257, avg=49.53, stdev=41.37 lat (msec): min=8, max=257, avg=49.54, stdev=41.37 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 75], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 226], 99.50th=[ 247], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 447, per=27.19%, avg=133.77, stdev=88.83, samples=92 iops : min= 1, max= 27, avg= 7.57, stdev= 5.60, samples=92 write: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48370msec); 0 zone resets clat (msec): min=18, max=277, avg=76.60, stdev=47.21 lat (msec): min=18, max=277, avg=76.60, stdev=47.21 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 30], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 60], 60.00th=[ 73], | 70.00th=[ 90], 80.00th=[ 110], 90.00th=[ 150], 95.00th=[ 167], | 99.00th=[ 226], 99.50th=[ 266], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 382, per=23.93%, avg=123.98, stdev=68.38, samples=94 iops : min= 1, max= 23, avg= 6.97, stdev= 4.36, samples=94 lat (msec) : 10=0.65%, 20=8.20%, 50=44.66%, 100=29.30%, 250=16.80% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.70%, ctx=1136, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179574: Thu Aug 27 09:48:56 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(6032KiB/47987msec) clat (msec): min=8, max=245, avg=47.41, stdev=38.56 lat (msec): min=8, max=245, avg=47.41, stdev=38.57 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 107], 95.00th=[ 130], | 99.00th=[ 190], 99.50th=[ 199], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 416, per=26.65%, avg=131.12, stdev=76.47, samples=89 iops : min= 1, max= 26, avg= 7.40, stdev= 4.83, samples=89 write: IOPS=8, BW=130KiB/s (133kB/s)(6256KiB/47987msec); 0 zone resets clat (msec): min=14, max=315, avg=76.05, stdev=50.05 lat (msec): min=14, max=315, avg=76.05, stdev=50.05 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 46], 40.00th=[ 53], 50.00th=[ 59], 60.00th=[ 70], | 70.00th=[ 85], 80.00th=[ 107], 90.00th=[ 144], 95.00th=[ 182], | 99.00th=[ 259], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 382, per=25.05%, avg=129.73, stdev=74.44, samples=94 iops : min= 1, max= 23, avg= 7.32, stdev= 4.71, samples=94 lat (msec) : 10=0.65%, 20=9.24%, 50=43.88%, 100=29.30%, 250=16.15% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.75%, ctx=1233, 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=492KiB/s (504kB/s), 120KiB/s-129KiB/s (123kB/s-132kB/s), io=23.4MiB (24.5MB), run=47838-48637msec WRITE: bw=518KiB/s (531kB/s), 125KiB/s-137KiB/s (128kB/s-140kB/s), io=24.6MiB (25.8MB), run=47838-48637msec 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=179591: Thu Aug 27 09:49:14 2026 read: IOPS=2, BW=2296KiB/s (2351kB/s)(7168KiB/3122msec) clat (msec): min=3, max=590, avg=266.67, stdev=178.35 lat (msec): min=3, max=590, avg=266.67, stdev=178.35 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 192], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 245], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 359], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2023, max= 3155, per=48.35%, avg=2314.00, stdev=560.72, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1640KiB/s (1679kB/s)(5120KiB/3122msec); 0 zone resets clat (msec): min=154, max=287, avg=246.43, stdev=54.89 lat (msec): min=154, max=287, avg=246.50, stdev=54.89 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 2023, max= 3864, per=39.43%, avg=2642.00, stdev=1058.31, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 4=8.33%, 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=14.29%, ctx=161, 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=179592: Thu Aug 27 09:49:14 2026 read: IOPS=0, BW=479KiB/s (490kB/s)(2048KiB/4279msec) clat (msec): min=192, max=241, avg=217.14, stdev=34.80 lat (msec): min=192, max=241, avg=217.14, stdev=34.80 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1519, max= 1932, per=36.05%, avg=1725.50, stdev=292.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2393KiB/s (2451kB/s)(10.0MiB/4279msec); 0 zone resets clat (msec): min=146, max=642, avg=364.93, stdev=186.56 lat (msec): min=146, max=642, avg=365.54, stdev=186.03 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 190], | 30.00th=[ 199], 40.00th=[ 201], 50.00th=[ 296], 60.00th=[ 372], | 70.00th=[ 468], 80.00th=[ 523], 90.00th=[ 617], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1932, max= 5953, per=44.93%, avg=3010.17, stdev=1663.35, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=14.00%, ctx=174, 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=179594: Thu Aug 27 09:49:14 2026 read: IOPS=1, BW=1705KiB/s (1746kB/s)(6144KiB/3604msec) clat (usec): min=456, max=304165, avg=94684.21, stdev=130130.04 lat (usec): min=457, max=304166, avg=94685.14, stdev=130130.22 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 1188], 50.00th=[ 1188], 60.00th=[ 54264], | 70.00th=[206570], 80.00th=[206570], 90.00th=[304088], 95.00th=[304088], | 99.00th=[304088], 99.50th=[304088], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 2035, max= 4079, per=69.49%, avg=3326.00, stdev=1123.19, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1705KiB/s (1746kB/s)(6144KiB/3604msec); 0 zone resets clat (msec): min=262, max=800, avg=459.72, stdev=199.59 lat (msec): min=262, max=800, avg=460.64, stdev=198.94 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 485], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1932, max= 4079, per=37.57%, avg=2517.25, stdev=1042.18, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=8.33%, 500=41.67%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=9.02%, ctx=120, 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=179595: Thu Aug 27 09:49:14 2026 read: IOPS=1, BW=1680KiB/s (1720kB/s)(5120KiB/3048msec) clat (usec): min=458, max=307106, avg=96461.41, stdev=139495.90 lat (usec): min=459, max=307107, avg=96462.35, stdev=139495.89 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 461], | 30.00th=[ 469], 40.00th=[ 469], 50.00th=[ 938], 60.00th=[ 938], | 70.00th=[173016], 80.00th=[173016], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 2039, max= 5796, per=81.85%, avg=3917.50, stdev=2656.60, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2352KiB/s (2408kB/s)(7168KiB/3048msec); 0 zone resets clat (msec): min=146, max=625, avg=335.83, stdev=167.29 lat (msec): min=146, max=625, avg=335.90, stdev=167.30 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 182], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 309], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 481], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1932, max= 4047, per=37.53%, avg=2514.25, stdev=1023.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=16.44%, ctx=144, 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=4786KiB/s (4901kB/s), 479KiB/s-2296KiB/s (490kB/s-2351kB/s), io=20.0MiB (20.0MB), run=3048-4279msec WRITE: bw=6701KiB/s (6861kB/s), 1640KiB/s-2393KiB/s (1679kB/s-2451kB/s), io=28.0MiB (29.4MB), run=3048-4279msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179596: Thu Aug 27 09:49:15 2026 read: IOPS=1, BW=1525KiB/s (1561kB/s)(7168KiB/4701msec) clat (msec): min=137, max=773, avg=339.56, stdev=261.17 lat (msec): min=137, max=773, avg=339.57, stdev=261.17 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 186], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 625], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1973, max= 4055, per=58.75%, avg=2513.75, stdev=1027.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1089KiB/s (1115kB/s)(5120KiB/4701msec); 0 zone resets clat (msec): min=173, max=843, avg=372.04, stdev=269.61 lat (msec): min=173, max=843, avg=372.12, stdev=269.62 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 317], 80.00th=[ 317], 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= 1973, max= 4031, per=44.52%, avg=2666.67, stdev=1181.60, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.45%, ctx=72, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179597: Thu Aug 27 09:49:15 2026 read: IOPS=0, BW=428KiB/s (438kB/s)(2048KiB/4786msec) clat (msec): min=170, max=257, avg=214.22, stdev=61.78 lat (msec): min=170, max=257, avg=214.23, stdev=61.78 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 1549, max= 1973, per=41.15%, avg=1761.00, stdev=299.81, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2140KiB/s (2191kB/s)(10.0MiB/4786msec); 0 zone resets clat (msec): min=108, max=1105, avg=422.61, stdev=331.69 lat (msec): min=113, max=1105, avg=423.29, stdev=331.08 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 113], | 30.00th=[ 165], 40.00th=[ 253], 50.00th=[ 266], 60.00th=[ 376], | 70.00th=[ 414], 80.00th=[ 575], 90.00th=[ 852], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2031, max= 6047, per=60.48%, avg=3622.80, stdev=1675.03, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.67, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=4.62%, ctx=89, 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=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=179598: Thu Aug 27 09:49:15 2026 read: IOPS=1, BW=1300KiB/s (1331kB/s)(6144KiB/4727msec) clat (msec): min=59, max=319, avg=188.37, stdev=109.97 lat (msec): min=59, max=319, avg=188.37, stdev=109.97 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 215], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1973, max= 6047, per=78.33%, avg=3351.67, stdev=2334.43, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1300KiB/s (1331kB/s)(6144KiB/4727msec); 0 zone resets clat (msec): min=120, max=1392, avg=578.66, stdev=552.56 lat (msec): min=121, max=1393, avg=578.72, stdev=552.57 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 133], | 30.00th=[ 133], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 527], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1973, max= 4031, per=40.39%, avg=2419.40, stdev=901.27, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 2000=16.67% cpu : usr=0.00%, sys=3.53%, ctx=118, 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=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=179599: Thu Aug 27 09:49:15 2026 read: IOPS=1, BW=1100KiB/s (1126kB/s)(5120KiB/4656msec) clat (msec): min=81, max=347, avg=215.12, stdev=111.51 lat (msec): min=81, max=347, avg=215.12, stdev=111.51 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 83], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 1996, max= 5919, per=92.49%, avg=3957.50, stdev=2773.98, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1540KiB/s (1576kB/s)(7168KiB/4656msec); 0 zone resets clat (msec): min=196, max=821, avg=463.96, stdev=248.89 lat (msec): min=196, max=821, avg=464.37, stdev=249.17 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 264], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 321], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 701], 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= 1943, max= 2027, per=33.40%, avg=2000.80, stdev=34.44, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=5.41%, ctx=119, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4279KiB/s (4382kB/s), 428KiB/s-1525KiB/s (438kB/s-1561kB/s), io=20.0MiB (20.0MB), run=4656-4786msec WRITE: bw=5991KiB/s (6135kB/s), 1089KiB/s-2140KiB/s (1115kB/s-2191kB/s), io=28.0MiB (29.4MB), run=4656-4786msec 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=179611: Thu Aug 27 09:49:28 2026 read: IOPS=1, BW=5034KiB/s (5155kB/s)(12.0MiB/2441msec) clat (msec): min=779, max=846, avg=813.23, stdev=33.65 lat (msec): min=779, max=846, avg=813.23, stdev=33.65 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 844], 80.00th=[ 844], 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= 8015, max= 8159, per=100.00%, avg=8087.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=15.41%, ctx=193, 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=179612: Thu Aug 27 09:49:28 2026 read: IOPS=0, BW=1858KiB/s (1902kB/s)(4096KiB/2205msec) clat (nsec): min=812024k, max=812024k, avg=812024013.00, stdev= 0.00 lat (nsec): min=812026k, max=812026k, avg=812026023.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3715KiB/s (3804kB/s)(8192KiB/2205msec); 0 zone resets clat (msec): min=623, max=766, avg=695.06, stdev=100.93 lat (msec): min=623, max=766, avg=695.39, stdev=100.97 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 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= 8015, max= 8015, per=70.77%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=8.39%, ctx=166, 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=179613: Thu Aug 27 09:49:28 2026 write: IOPS=1, BW=4247KiB/s (4349kB/s)(12.0MiB/2893msec); 0 zone resets clat (msec): min=249, max=2073, avg=958.81, stdev=977.09 lat (msec): min=250, max=2073, avg=963.26, stdev=974.57 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7953, max= 7953, per=70.22%, avg=7953.00, 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=0.00%, sys=4.29%, ctx=52, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179614: Thu Aug 27 09:49:28 2026 write: IOPS=1, BW=5152KiB/s (5276kB/s)(12.0MiB/2385msec); 0 zone resets clat (msec): min=338, max=1493, avg=793.97, stdev=614.66 lat (msec): min=338, max=1493, avg=794.37, stdev=614.73 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 6574, max= 8175, per=65.11%, avg=7374.50, stdev=1132.08, 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=8.89%, ctx=80, 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=6712KiB/s (6873kB/s), 1858KiB/s-5034KiB/s (1902kB/s-5155kB/s), io=16.0MiB (16.8MB), run=2205-2441msec WRITE: bw=11.1MiB/s (11.6MB/s), 3715KiB/s-5152KiB/s (3804kB/s-5276kB/s), io=32.0MiB (33.6MB), run=2205-2893msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179606: Thu Aug 27 09:49:28 2026 read: IOPS=2, BW=9699KiB/s (9931kB/s)(12.0MiB/1267msec) clat (msec): min=140, max=698, avg=409.31, stdev=279.49 lat (msec): min=140, max=698, avg=409.31, stdev=279.49 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min=11924, max=11924, per=100.00%, avg=11924.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=10.03%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179607: Thu Aug 27 09:49:28 2026 read: IOPS=0, BW=1312KiB/s (1343kB/s)(4096KiB/3122msec) clat (nsec): min=1234.5M, max=1234.5M, avg=1234513943.00, stdev= 0.00 lat (nsec): min=1234.5M, max=1234.5M, avg=1234516742.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 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= 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 write: IOPS=0, BW=2624KiB/s (2687kB/s)(8192KiB/3122msec); 0 zone resets clat (msec): min=244, max=1633, avg=939.10, stdev=981.95 lat (msec): min=244, max=1633, avg=939.33, stdev=982.05 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 1636], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.03%, sys=5.22%, ctx=41, 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=179608: Thu Aug 27 09:49:28 2026 write: IOPS=1, BW=4981KiB/s (5100kB/s)(12.0MiB/2467msec); 0 zone resets clat (msec): min=459, max=1253, avg=821.63, stdev=401.55 lat (msec): min=459, max=1253, avg=821.91, stdev=401.44 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 6736, max= 8078, per=70.58%, avg=7407.00, stdev=948.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=4.50%, ctx=47, 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=179609: Thu Aug 27 09:49:28 2026 write: IOPS=1, BW=4674KiB/s (4786kB/s)(12.0MiB/2629msec); 0 zone resets clat (msec): min=315, max=1770, avg=836.87, stdev=810.09 lat (msec): min=315, max=1771, avg=837.94, stdev=810.46 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 5565, max= 8192, per=65.54%, avg=6878.50, stdev=1857.57, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.04%, sys=6.43%, ctx=63, 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=5248KiB/s (5374kB/s), 1312KiB/s-9699KiB/s (1343kB/s-9931kB/s), io=16.0MiB (16.8MB), run=1267-3122msec WRITE: bw=10.2MiB/s (10.7MB/s), 2624KiB/s-4981KiB/s (2687kB/s-5100kB/s), io=32.0MiB (33.6MB), run=2467-3122msec