== sanity test 398b: DIO and buffer IO race ============== 04:22:03 (1786695723) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.72133 s, 8.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180299: Fri Aug 14 04:24:26 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5992KiB/122521msec) clat (usec): min=35, max=498233, avg=45572.89, stdev=31420.13 lat (usec): min=35, max=498234, avg=45578.68, stdev=31423.51 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 12780], 10.00th=[ 17957], 20.00th=[ 22938], | 30.00th=[ 28181], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[143655], 99.50th=[173016], 99.90th=[252707], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 7, max= 117, per=25.13%, avg=48.51, stdev=18.24, samples=241 iops : min= 1, max= 29, avg=11.48, stdev= 4.62, samples=241 write: IOPS=12, BW=51.4KiB/s (52.6kB/s)(6296KiB/122521msec); 0 zone resets clat (usec): min=1186, max=215041, avg=34370.77, stdev=34908.35 lat (usec): min=1187, max=215043, avg=34375.68, stdev=34908.00 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1483], 10.00th=[ 2245], 20.00th=[ 4359], | 30.00th=[ 7635], 40.00th=[ 16450], 50.00th=[ 24511], 60.00th=[ 32375], | 70.00th=[ 44303], 80.00th=[ 59507], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[162530], 99.50th=[175113], 99.90th=[202376], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 7, max= 127, per=25.22%, avg=50.94, stdev=22.33, samples=241 iops : min= 1, max= 31, avg=12.09, stdev= 5.62, samples=241 lat (usec) : 50=0.13%, 100=1.30%, 250=0.23%, 500=0.13%, 750=0.07% lat (msec) : 2=4.49%, 4=4.98%, 10=8.11%, 20=9.96%, 50=40.92% lat (msec) : 100=24.61%, 250=5.01%, 500=0.07% cpu : usr=0.07%, sys=5.16%, ctx=6813, 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=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=180300: Fri Aug 14 04:24:26 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5940KiB/124011msec) clat (usec): min=47, max=597001, avg=45928.71, stdev=32088.09 lat (usec): min=48, max=597004, avg=45931.10, stdev=32088.42 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 13698], 10.00th=[ 18220], 20.00th=[ 23462], | 30.00th=[ 28181], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 64750], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[145753], 99.50th=[162530], 99.90th=[291505], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 119, per=24.64%, avg=47.56, stdev=19.80, samples=244 iops : min= 1, max= 29, avg=11.24, stdev= 4.96, samples=244 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(6348KiB/124011msec); 0 zone resets clat (usec): min=1144, max=292982, avg=35066.30, stdev=36744.99 lat (usec): min=1145, max=292984, avg=35071.00, stdev=36743.88 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1549], 10.00th=[ 2409], 20.00th=[ 4752], | 30.00th=[ 8094], 40.00th=[ 16057], 50.00th=[ 24511], 60.00th=[ 32113], | 70.00th=[ 43779], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[166724], 99.50th=[181404], 99.90th=[252707], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 120, per=25.10%, avg=50.70, stdev=22.37, samples=244 iops : min= 1, max= 30, avg=12.04, stdev= 5.63, samples=244 lat (usec) : 50=0.20%, 100=1.11%, 250=0.03%, 500=0.07% lat (msec) : 2=3.74%, 4=5.18%, 10=7.91%, 20=11.13%, 50=40.01% lat (msec) : 100=24.87%, 250=5.63%, 500=0.10%, 750=0.03% cpu : usr=0.07%, sys=5.21%, ctx=6934, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180301: Fri Aug 14 04:24:26 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6028KiB/119887msec) clat (usec): min=44, max=248693, avg=43986.71, stdev=28541.81 lat (usec): min=45, max=248694, avg=43988.09, stdev=28541.83 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 12518], 10.00th=[ 17433], 20.00th=[ 22938], | 30.00th=[ 27132], 40.00th=[ 32375], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[143655], 99.50th=[173016], 99.90th=[227541], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 7, max= 104, per=25.85%, avg=49.90, stdev=18.51, samples=236 iops : min= 1, max= 26, avg=11.83, stdev= 4.66, samples=236 write: IOPS=13, BW=52.2KiB/s (53.5kB/s)(6260KiB/119887msec); 0 zone resets clat (usec): min=1146, max=648918, avg=34139.56, stdev=37911.14 lat (usec): min=1147, max=648922, avg=34144.60, stdev=37911.06 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1434], 10.00th=[ 2147], 20.00th=[ 4293], | 30.00th=[ 7701], 40.00th=[ 15139], 50.00th=[ 24249], 60.00th=[ 32375], | 70.00th=[ 42206], 80.00th=[ 57934], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[158335], 99.50th=[177210], 99.90th=[193987], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 7, max= 140, per=25.66%, avg=51.83, stdev=22.55, samples=236 iops : min= 1, max= 35, avg=12.32, stdev= 5.68, samples=236 lat (usec) : 50=0.39%, 100=1.20%, 250=0.07%, 1000=0.03% lat (msec) : 2=4.79%, 4=4.69%, 10=7.85%, 20=11.10%, 50=42.12% lat (msec) : 100=22.66%, 250=5.08%, 750=0.03% cpu : usr=0.08%, sys=5.32%, ctx=6832, 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=180302: Fri Aug 14 04:24:26 2026 read: IOPS=12, BW=49.1KiB/s (50.3kB/s)(6052KiB/123195msec) clat (usec): min=41, max=236018, avg=44646.15, stdev=29105.87 lat (usec): min=42, max=236019, avg=44647.81, stdev=29105.71 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 11600], 10.00th=[ 17171], 20.00th=[ 22938], | 30.00th=[ 27919], 40.00th=[ 32375], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 53216], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[137364], 99.50th=[189793], 99.90th=[212861], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 7, max= 117, per=25.33%, avg=48.88, stdev=19.17, samples=241 iops : min= 1, max= 29, avg=11.58, stdev= 4.84, samples=241 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(6236KiB/123195msec); 0 zone resets clat (usec): min=1116, max=586631, avg=35613.59, stdev=38040.39 lat (usec): min=1117, max=586633, avg=35615.92, stdev=38040.86 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1565], 10.00th=[ 2409], 20.00th=[ 5080], | 30.00th=[ 9110], 40.00th=[ 19006], 50.00th=[ 26346], 60.00th=[ 34341], | 70.00th=[ 43779], 80.00th=[ 57934], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[160433], 99.50th=[198181], 99.90th=[267387], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 117, per=24.94%, avg=50.37, stdev=20.51, samples=241 iops : min= 1, max= 29, avg=11.95, stdev= 5.14, samples=241 lat (usec) : 50=0.42%, 100=1.30%, 250=0.26% lat (msec) : 2=3.91%, 4=4.36%, 10=7.81%, 20=9.57%, 50=42.94% lat (msec) : 100=24.51%, 250=4.85%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=5.25%, ctx=7003, 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=194KiB/s (198kB/s), 47.9KiB/s-50.3KiB/s (49.0kB/s-51.5kB/s), io=23.4MiB (24.6MB), run=119887-124011msec WRITE: bw=203KiB/s (208kB/s), 50.6KiB/s-52.2KiB/s (51.8kB/s-53.5kB/s), io=24.6MiB (25.7MB), run=119887-124011msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180294: Fri Aug 14 04:25:01 2026 read: IOPS=9, BW=37.7KiB/s (38.6kB/s)(5992KiB/158889msec) clat (msec): min=5, max=634, avg=41.37, stdev=41.29 lat (msec): min=5, max=634, avg=41.38, stdev=41.29 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 61], 90.00th=[ 96], 95.00th=[ 124], | 99.00th=[ 192], 99.50th=[ 220], 99.90th=[ 275], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 167, per=25.73%, avg=38.59, stdev=28.42, samples=302 iops : min= 1, max= 41, avg= 8.99, stdev= 7.14, samples=302 write: IOPS=9, BW=39.6KiB/s (40.6kB/s)(6296KiB/158889msec); 0 zone resets clat (msec): min=9, max=376, avg=61.30, stdev=45.08 lat (msec): min=9, max=376, avg=61.30, stdev=45.08 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 56], | 70.00th=[ 71], 80.00th=[ 93], 90.00th=[ 123], 95.00th=[ 155], | 99.00th=[ 222], 99.50th=[ 259], 99.90th=[ 317], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=39.34, stdev=26.23, samples=311 iops : min= 1, max= 29, avg= 9.18, stdev= 6.59, samples=311 lat (msec) : 10=2.70%, 20=17.58%, 50=44.43%, 100=22.17%, 250=12.70% lat (msec) : 500=0.39%, 750=0.03% cpu : usr=0.06%, sys=2.15%, ctx=4957, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180295: Fri Aug 14 04:25:01 2026 read: IOPS=9, BW=37.2KiB/s (38.1kB/s)(5940KiB/159771msec) clat (msec): min=6, max=703, avg=42.22, stdev=43.98 lat (msec): min=6, max=703, avg=42.22, stdev=43.98 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=[ 32], | 70.00th=[ 42], 80.00th=[ 63], 90.00th=[ 102], 95.00th=[ 132], | 99.00th=[ 192], 99.50th=[ 224], 99.90th=[ 305], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 134, per=24.62%, avg=36.94, stdev=28.08, samples=313 iops : min= 1, max= 33, avg= 8.58, stdev= 7.05, samples=313 write: IOPS=9, BW=39.7KiB/s (40.7kB/s)(6348KiB/159771msec); 0 zone resets clat (msec): min=10, max=450, avg=60.89, stdev=46.36 lat (msec): min=10, max=450, avg=60.90, stdev=46.36 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 55], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 232], 99.50th=[ 257], 99.90th=[ 330], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 128, per=25.24%, avg=39.62, stdev=27.11, samples=312 iops : min= 1, max= 32, avg= 9.25, stdev= 6.81, samples=312 lat (msec) : 10=2.67%, 20=17.45%, 50=45.18%, 100=21.39%, 250=12.83% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.06%, sys=2.14%, ctx=4955, 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=180296: Fri Aug 14 04:25:01 2026 read: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6028KiB/159034msec) clat (msec): min=5, max=284, avg=41.51, stdev=38.98 lat (msec): min=5, max=284, avg=41.51, stdev=38.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 63], 90.00th=[ 100], 95.00th=[ 128], | 99.00th=[ 174], 99.50th=[ 192], 99.90th=[ 275], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 160, per=25.58%, avg=38.36, stdev=28.18, samples=305 iops : min= 1, max= 40, avg= 8.93, stdev= 7.09, samples=305 write: IOPS=9, BW=39.4KiB/s (40.3kB/s)(6260KiB/159034msec); 0 zone resets clat (msec): min=10, max=737, avg=61.37, stdev=48.47 lat (msec): min=10, max=737, avg=61.38, stdev=48.48 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 57], | 70.00th=[ 72], 80.00th=[ 92], 90.00th=[ 122], 95.00th=[ 153], | 99.00th=[ 226], 99.50th=[ 264], 99.90th=[ 456], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 128, per=24.84%, avg=39.00, stdev=26.92, samples=311 iops : min= 1, max= 32, avg= 9.09, stdev= 6.77, samples=311 lat (msec) : 10=2.41%, 20=18.39%, 50=44.08%, 100=21.97%, 250=12.70% lat (msec) : 500=0.42%, 750=0.03% cpu : usr=0.04%, sys=2.19%, ctx=4920, 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=180297: Fri Aug 14 04:25:01 2026 read: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6052KiB/159644msec) clat (msec): min=5, max=275, avg=41.39, stdev=40.11 lat (msec): min=5, max=275, avg=41.39, stdev=40.11 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=[ 100], 95.00th=[ 130], | 99.00th=[ 192], 99.50th=[ 226], 99.90th=[ 264], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 7, max= 143, per=25.72%, avg=38.58, stdev=28.69, samples=306 iops : min= 1, max= 35, avg= 8.99, stdev= 7.22, samples=306 write: IOPS=9, BW=39.1KiB/s (39.0kB/s)(6236KiB/159644msec); 0 zone resets clat (msec): min=11, max=728, avg=61.95, stdev=49.65 lat (msec): min=11, max=728, avg=61.95, stdev=49.65 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 57], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 120], 95.00th=[ 153], | 99.00th=[ 241], 99.50th=[ 271], 99.90th=[ 388], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 128, per=24.76%, avg=38.88, stdev=26.89, samples=313 iops : min= 1, max= 32, avg= 9.06, stdev= 6.77, samples=313 lat (msec) : 10=2.54%, 20=19.14%, 50=43.07%, 100=22.01%, 250=12.76% lat (msec) : 500=0.46%, 750=0.03% cpu : usr=0.06%, sys=2.24%, ctx=4996, 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=150KiB/s (154kB/s), 37.2KiB/s-37.9KiB/s (38.1kB/s-38.8kB/s), io=23.4MiB (24.6MB), run=158889-159771msec WRITE: bw=157KiB/s (161kB/s), 39.1KiB/s-39.7KiB/s (39.0kB/s-40.7kB/s), io=24.6MiB (25.7MB), run=158889-159771msec 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=180344: Fri Aug 14 04:25:41 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(5920KiB/29142msec) clat (usec): min=47, max=208114, avg=41543.92, stdev=27422.17 lat (usec): min=48, max=208116, avg=41547.75, stdev=27423.00 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 76], 10.00th=[ 15926], 20.00th=[ 22676], | 30.00th=[ 27657], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[145753], 99.50th=[191890], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 63, max= 382, per=25.96%, avg=202.25, stdev=75.33, samples=57 iops : min= 3, max= 23, avg=11.88, stdev= 4.72, samples=57 write: IOPS=13, BW=219KiB/s (224kB/s)(6368KiB/29142msec); 0 zone resets clat (usec): min=1621, max=200497, avg=34165.66, stdev=31910.51 lat (usec): min=1622, max=200498, avg=34171.00, stdev=31910.93 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2540], 10.00th=[ 4080], 20.00th=[ 6325], | 30.00th=[ 9765], 40.00th=[ 18482], 50.00th=[ 25822], 60.00th=[ 34341], | 70.00th=[ 44827], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[139461], 99.50th=[191890], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 446, per=26.65%, avg=218.53, stdev=89.43, samples=57 iops : min= 3, max= 27, avg=12.89, stdev= 5.63, samples=57 lat (usec) : 50=0.26%, 100=2.47%, 250=0.91%, 500=0.13% lat (msec) : 2=1.30%, 4=3.78%, 10=11.07%, 20=9.51%, 50=43.23% lat (msec) : 100=23.96%, 250=3.39% cpu : usr=0.07%, sys=6.66%, ctx=1826, 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=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=180345: Fri Aug 14 04:25:41 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(5744KiB/27757msec) clat (usec): min=49, max=220960, avg=42176.39, stdev=27712.84 lat (usec): min=50, max=220961, avg=42178.98, stdev=27713.10 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 668], 20.00th=[ 22938], | 30.00th=[ 28181], 40.00th=[ 33424], 50.00th=[ 39584], 60.00th=[ 45351], | 70.00th=[ 49021], 80.00th=[ 62129], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[129500], 99.50th=[132645], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 58, max= 414, per=26.52%, avg=206.59, stdev=72.79, samples=54 iops : min= 3, max= 25, avg=12.13, stdev= 4.53, samples=54 write: IOPS=14, BW=236KiB/s (241kB/s)(6544KiB/27757msec); 0 zone resets clat (usec): min=1664, max=186013, avg=30280.02, stdev=29860.95 lat (usec): min=1666, max=186016, avg=30282.40, stdev=29861.00 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2311], 10.00th=[ 3228], 20.00th=[ 5800], | 30.00th=[ 8586], 40.00th=[ 13173], 50.00th=[ 21627], 60.00th=[ 29230], | 70.00th=[ 37487], 80.00th=[ 53216], 90.00th=[ 70779], 95.00th=[ 85459], | 99.00th=[135267], 99.50th=[162530], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 572, per=28.40%, avg=232.87, stdev=96.43, samples=54 iops : min= 1, max= 35, avg=13.80, stdev= 6.02, samples=54 lat (usec) : 50=0.13%, 100=3.39%, 250=0.78%, 500=0.26%, 750=0.13% lat (msec) : 2=1.69%, 4=5.21%, 10=12.11%, 20=9.77%, 50=41.67% lat (msec) : 100=21.88%, 250=2.99% cpu : usr=0.07%, sys=6.86%, ctx=1812, 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=180346: Fri Aug 14 04:25:41 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(6256KiB/30723msec) clat (usec): min=38, max=197054, avg=43361.80, stdev=29383.18 lat (usec): min=38, max=197054, avg=43363.00, stdev=29383.23 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 67], 10.00th=[ 7308], 20.00th=[ 21627], | 30.00th=[ 27657], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 47449], | 70.00th=[ 54264], 80.00th=[ 63177], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[131597], 99.50th=[179307], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 57, max= 352, per=26.25%, avg=204.52, stdev=70.50, samples=60 iops : min= 3, max= 22, avg=12.00, stdev= 4.44, samples=60 write: IOPS=12, BW=196KiB/s (201kB/s)(6032KiB/30723msec); 0 zone resets clat (usec): min=1396, max=208021, avg=35883.96, stdev=32901.22 lat (usec): min=1398, max=208023, avg=35887.42, stdev=32903.36 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2769], 10.00th=[ 4293], 20.00th=[ 7242], | 30.00th=[ 11076], 40.00th=[ 19792], 50.00th=[ 26346], 60.00th=[ 33817], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[131597], 99.50th=[143655], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 62, max= 415, per=23.63%, avg=193.73, stdev=86.90, samples=60 iops : min= 3, max= 25, avg=11.33, stdev= 5.40, samples=60 lat (usec) : 50=0.65%, 100=3.26%, 250=0.39%, 500=0.13%, 750=0.13% lat (msec) : 2=1.43%, 4=3.65%, 10=9.51%, 20=8.98%, 50=40.36% lat (msec) : 100=27.34%, 250=4.17% cpu : usr=0.05%, sys=6.16%, ctx=1799, majf=0, minf=18 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=180348: Fri Aug 14 04:25:41 2026 read: IOPS=13, BW=211KiB/s (216kB/s)(6032KiB/28585msec) clat (usec): min=47, max=177262, avg=41633.35, stdev=28201.21 lat (usec): min=48, max=177264, avg=41642.47, stdev=28212.95 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 251], 20.00th=[ 21365], | 30.00th=[ 27657], 40.00th=[ 32375], 50.00th=[ 39060], 60.00th=[ 43254], | 70.00th=[ 49546], 80.00th=[ 59507], 90.00th=[ 76022], 95.00th=[ 89654], | 99.00th=[135267], 99.50th=[175113], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 63, max= 379, per=26.94%, avg=209.88, stdev=79.38, samples=56 iops : min= 3, max= 23, avg=12.36, stdev= 4.90, samples=56 write: IOPS=13, BW=219KiB/s (224kB/s)(6256KiB/28585msec); 0 zone resets clat (usec): min=1700, max=265118, avg=32830.67, stdev=33400.60 lat (usec): min=1701, max=265122, avg=32833.58, stdev=33400.25 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2999], 10.00th=[ 4293], 20.00th=[ 6980], | 30.00th=[ 9634], 40.00th=[ 14877], 50.00th=[ 23725], 60.00th=[ 31589], | 70.00th=[ 42206], 80.00th=[ 54789], 90.00th=[ 71828], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[263193], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 63, max= 411, per=26.77%, avg=219.52, stdev=79.62, samples=56 iops : min= 3, max= 25, avg=12.96, stdev= 4.98, samples=56 lat (usec) : 50=0.26%, 100=3.78%, 250=0.78%, 500=0.39%, 750=0.13% lat (msec) : 2=0.91%, 4=4.04%, 10=11.20%, 20=10.55%, 50=41.67% lat (msec) : 100=22.27%, 250=3.78%, 500=0.26% cpu : usr=0.07%, sys=6.74%, ctx=1832, 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=780KiB/s (798kB/s), 203KiB/s-211KiB/s (208kB/s-216kB/s), io=23.4MiB (24.5MB), run=27757-30723msec WRITE: bw=820KiB/s (840kB/s), 196KiB/s-236KiB/s (201kB/s-241kB/s), io=24.6MiB (25.8MB), run=27757-30723msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180347: Fri Aug 14 04:25:53 2026 read: IOPS=8, BW=141KiB/s (144kB/s)(5920KiB/42063msec) clat (msec): min=8, max=271, avg=45.21, stdev=39.51 lat (msec): min=8, max=271, avg=45.21, stdev=39.51 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 96], 95.00th=[ 130], | 99.00th=[ 220], 99.50th=[ 251], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 413, per=24.63%, avg=140.17, stdev=84.52, samples=83 iops : min= 1, max= 25, avg= 7.94, stdev= 5.33, samples=83 write: IOPS=9, BW=151KiB/s (155kB/s)(6368KiB/42063msec); 0 zone resets clat (msec): min=19, max=360, avg=62.80, stdev=41.08 lat (msec): min=19, max=360, avg=62.80, stdev=41.08 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 49], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 112], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 255], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 320, per=25.45%, avg=152.45, stdev=77.78, samples=82 iops : min= 1, max= 20, avg= 8.71, stdev= 4.93, samples=82 lat (msec) : 10=0.39%, 20=8.46%, 50=53.13%, 100=26.56%, 250=10.94% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.44%, ctx=1288, 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=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=180349: Fri Aug 14 04:25:53 2026 read: IOPS=8, BW=137KiB/s (141kB/s)(5744KiB/41824msec) clat (msec): min=8, max=202, avg=42.36, stdev=33.99 lat (msec): min=8, max=202, avg=42.36, stdev=33.99 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 89], 95.00th=[ 117], | 99.00th=[ 190], 99.50th=[ 201], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 29, max= 412, per=24.46%, avg=139.18, stdev=84.61, samples=80 iops : min= 1, max= 25, avg= 7.88, stdev= 5.34, samples=80 write: IOPS=9, BW=156KiB/s (160kB/s)(6544KiB/41824msec); 0 zone resets clat (msec): min=17, max=338, avg=64.43, stdev=41.68 lat (msec): min=17, max=338, avg=64.44, stdev=41.67 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 123], 95.00th=[ 148], | 99.00th=[ 211], 99.50th=[ 232], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 29, max= 351, per=25.82%, avg=154.68, stdev=79.60, samples=82 iops : min= 1, max= 21, avg= 8.85, stdev= 5.03, samples=82 lat (msec) : 10=0.52%, 20=10.81%, 50=50.91%, 100=25.78%, 250=11.85% lat (msec) : 500=0.13% cpu : usr=0.03%, sys=2.31%, ctx=1241, 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=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=180350: Fri Aug 14 04:25:53 2026 read: IOPS=9, BW=151KiB/s (154kB/s)(6256KiB/41509msec) clat (msec): min=8, max=251, avg=43.17, stdev=36.43 lat (msec): min=8, max=251, avg=43.17, stdev=36.43 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 58], 90.00th=[ 93], 95.00th=[ 122], | 99.00th=[ 176], 99.50th=[ 251], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 30, max= 480, per=26.85%, avg=152.78, stdev=94.66, samples=81 iops : min= 1, max= 30, avg= 8.73, stdev= 5.99, samples=81 write: IOPS=9, BW=145KiB/s (149kB/s)(6032KiB/41509msec); 0 zone resets clat (msec): min=15, max=244, avg=64.98, stdev=39.34 lat (msec): min=15, max=244, avg=64.98, stdev=39.34 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 64], | 70.00th=[ 77], 80.00th=[ 92], 90.00th=[ 117], 95.00th=[ 146], | 99.00th=[ 209], 99.50th=[ 241], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 411, per=24.14%, avg=144.57, stdev=76.49, samples=82 iops : min= 1, max= 25, avg= 8.22, stdev= 4.86, samples=82 lat (msec) : 10=0.52%, 20=11.46%, 50=47.92%, 100=27.60%, 250=12.37% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.38%, ctx=1265, 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=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=180351: Fri Aug 14 04:25:53 2026 read: IOPS=9, BW=145KiB/s (148kB/s)(6032KiB/41633msec) clat (msec): min=8, max=273, avg=44.59, stdev=38.40 lat (msec): min=8, max=273, avg=44.59, stdev=38.40 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 35], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 101], 95.00th=[ 124], | 99.00th=[ 197], 99.50th=[ 257], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 415, per=25.77%, avg=146.64, stdev=84.85, samples=80 iops : min= 1, max= 25, avg= 8.35, stdev= 5.33, samples=80 write: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41633msec); 0 zone resets clat (msec): min=14, max=238, avg=62.39, stdev=37.77 lat (msec): min=14, max=238, avg=62.40, stdev=37.77 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 59], | 70.00th=[ 69], 80.00th=[ 85], 90.00th=[ 115], 95.00th=[ 146], | 99.00th=[ 190], 99.50th=[ 215], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 29, max= 383, per=25.00%, avg=149.74, stdev=80.45, samples=82 iops : min= 1, max= 23, avg= 8.54, stdev= 5.11, samples=82 lat (msec) : 10=0.39%, 20=10.68%, 50=49.09%, 100=27.34%, 250=12.24% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.45%, ctx=1248, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=569KiB/s (583kB/s), 137KiB/s-151KiB/s (141kB/s-154kB/s), io=23.4MiB (24.5MB), run=41509-42063msec WRITE: bw=599KiB/s (613kB/s), 145KiB/s-156KiB/s (149kB/s-160kB/s), io=24.6MiB (25.8MB), run=41509-42063msec 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=180368: Fri Aug 14 04:26:08 2026 read: IOPS=1, BW=2014KiB/s (2062kB/s)(7168KiB/3559msec) clat (usec): min=549, max=370526, avg=229075.26, stdev=123314.05 lat (usec): min=550, max=370527, avg=229076.73, stdev=123314.43 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[154141], | 30.00th=[204473], 40.00th=[204473], 50.00th=[274727], 60.00th=[274727], | 70.00th=[274727], 80.00th=[320865], 90.00th=[371196], 95.00th=[371196], | 99.00th=[371196], 99.50th=[371196], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 1885, max= 4087, per=69.57%, avg=3006.00, stdev=1244.14, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1439KiB/s (1473kB/s)(5120KiB/3559msec); 0 zone resets clat (msec): min=136, max=541, avg=390.14, stdev=182.91 lat (msec): min=136, max=541, avg=390.21, stdev=182.90 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 257], 40.00th=[ 257], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1885, max= 2039, per=32.50%, avg=1966.50, stdev=69.60, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.03%, sys=16.86%, ctx=225, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180369: Fri Aug 14 04:26:08 2026 read: IOPS=0, BW=432KiB/s (443kB/s)(2048KiB/4739msec) clat (msec): min=261, max=393, avg=327.34, stdev=93.18 lat (msec): min=261, max=393, avg=327.34, stdev=93.18 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 1393, max= 1939, per=38.56%, avg=1666.00, stdev=386.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2161KiB/s (2213kB/s)(10.0MiB/4739msec); 0 zone resets clat (msec): min=149, max=1264, avg=407.86, stdev=317.29 lat (msec): min=149, max=1264, avg=408.01, stdev=317.30 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 220], | 30.00th=[ 222], 40.00th=[ 288], 50.00th=[ 300], 60.00th=[ 342], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 468], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 1393, max= 4071, per=42.20%, avg=2552.83, stdev=1130.21, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=25.00%, 500=66.67%, 2000=8.33% cpu : usr=0.02%, sys=15.91%, ctx=169, 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=180370: Fri Aug 14 04:26:08 2026 read: IOPS=1, BW=1683KiB/s (1723kB/s)(6144KiB/3651msec) clat (usec): min=476, max=359938, avg=195237.36, stdev=161016.89 lat (usec): min=478, max=359940, avg=195238.52, stdev=161016.73 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 783], | 30.00th=[ 783], 40.00th=[223347], 50.00th=[223347], 60.00th=[233833], | 70.00th=[350225], 80.00th=[350225], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 1939, max= 3953, per=75.43%, avg=3259.33, stdev=1143.93, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1683KiB/s (1723kB/s)(6144KiB/3651msec); 0 zone resets clat (msec): min=165, max=679, avg=408.37, stdev=189.42 lat (msec): min=165, max=679, avg=408.49, stdev=189.37 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 443], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1410, max= 3878, per=37.16%, avg=2248.40, stdev=944.92, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=16.96%, ctx=138, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180371: Fri Aug 14 04:26:08 2026 read: IOPS=1, BW=1658KiB/s (1698kB/s)(5120KiB/3088msec) clat (usec): min=464, max=266100, avg=187578.74, stdev=106844.95 lat (usec): min=465, max=266101, avg=187579.84, stdev=106844.82 clat percentiles (usec): | 1.00th=[ 465], 5.00th=[ 465], 10.00th=[ 465], 20.00th=[ 465], | 30.00th=[206570], 40.00th=[206570], 50.00th=[225444], 60.00th=[225444], | 70.00th=[240124], 80.00th=[240124], 90.00th=[265290], 95.00th=[265290], | 99.00th=[265290], 99.50th=[265290], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 3871, max= 4079, per=91.99%, avg=3975.00, stdev=147.08, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2321KiB/s (2377kB/s)(7168KiB/3088msec); 0 zone resets clat (msec): min=120, max=442, avg=306.92, stdev=121.44 lat (msec): min=120, max=442, avg=307.00, stdev=121.45 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 176], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 380], 80.00th=[ 401], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1928, max= 4087, per=39.66%, avg=2399.20, stdev=944.69, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=24.49%, ctx=257, 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=4322KiB/s (4425kB/s), 432KiB/s-2014KiB/s (443kB/s-2062kB/s), io=20.0MiB (20.0MB), run=3088-4739msec WRITE: bw=6050KiB/s (6195kB/s), 1439KiB/s-2321KiB/s (1473kB/s-2377kB/s), io=28.0MiB (29.4MB), run=3088-4739msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180363: Fri Aug 14 04:26:08 2026 read: IOPS=2, BW=2060KiB/s (2110kB/s)(7168KiB/3479msec) clat (msec): min=72, max=763, avg=257.85, stdev=247.61 lat (msec): min=72, max=763, avg=257.85, stdev=247.61 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 178], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 359], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1910, max= 4272, per=92.57%, avg=3417.67, stdev=1309.54, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1472KiB/s (1507kB/s)(5120KiB/3479msec); 0 zone resets clat (msec): min=185, max=709, avg=329.85, stdev=214.55 lat (msec): min=185, max=709, avg=330.02, stdev=214.67 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 271], 80.00th=[ 271], 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= 1424, max= 4047, per=45.54%, avg=2354.00, stdev=1159.03, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=6.50%, ctx=90, 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=180364: Fri Aug 14 04:26:08 2026 read: IOPS=0, BW=369KiB/s (378kB/s)(2048KiB/5546msec) clat (msec): min=97, max=1015, avg=556.60, stdev=649.15 lat (msec): min=97, max=1015, avg=556.61, stdev=649.15 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 1020], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1412, max= 2027, per=46.57%, avg=1719.50, stdev=434.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1846KiB/s (1891kB/s)(10.0MiB/5546msec); 0 zone resets clat (msec): min=211, max=1005, avg=432.79, stdev=254.21 lat (msec): min=211, max=1005, avg=432.88, stdev=254.20 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 218], | 30.00th=[ 259], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 451], 80.00th=[ 609], 90.00th=[ 651], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1412, max= 4071, per=56.39%, avg=2915.00, stdev=1254.65, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 750=16.67%, 2000=16.67% cpu : usr=0.00%, sys=5.97%, ctx=133, 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=180365: Fri Aug 14 04:26:08 2026 read: IOPS=1, BW=1227KiB/s (1256kB/s)(6144KiB/5008msec) clat (msec): min=114, max=682, avg=357.03, stdev=247.90 lat (msec): min=114, max=682, avg=357.03, stdev=247.90 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 363], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1910, max= 2027, per=54.00%, avg=1993.75, stdev=56.06, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1227KiB/s (1256kB/s)(6144KiB/5008msec); 0 zone resets clat (msec): min=112, max=802, avg=455.88, stdev=286.19 lat (msec): min=112, max=802, avg=455.96, stdev=286.20 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 567], | 70.00th=[ 743], 80.00th=[ 743], 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= 1467, max= 2035, per=37.02%, avg=1913.40, stdev=249.65, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=16.67%, 750=33.33%, 1000=8.33% cpu : usr=0.00%, sys=6.33%, ctx=116, 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=180366: Fri Aug 14 04:26:08 2026 read: IOPS=1, BW=1109KiB/s (1136kB/s)(5120KiB/4615msec) clat (msec): min=136, max=690, avg=288.03, stdev=230.21 lat (msec): min=136, max=690, avg=288.03, stdev=230.21 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 251], 80.00th=[ 251], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1910, max= 6071, per=100.00%, avg=3990.50, stdev=2942.27, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1553KiB/s (1590kB/s)(7168KiB/4615msec); 0 zone resets clat (msec): min=116, max=954, avg=443.19, stdev=321.10 lat (msec): min=116, max=954, avg=443.27, stdev=321.09 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 502], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 718], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 2023, max= 4071, per=54.24%, avg=2803.50, stdev=983.62, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 250=50.00%, 500=8.33%, 750=33.33%, 1000=8.33% cpu : usr=0.04%, sys=6.59%, ctx=96, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=3693KiB/s (3781kB/s), 369KiB/s-2060KiB/s (378kB/s-2110kB/s), io=20.0MiB (20.0MB), run=3479-5546msec WRITE: bw=5170KiB/s (5294kB/s), 1227KiB/s-1846KiB/s (1256kB/s-1891kB/s), io=28.0MiB (29.4MB), run=3479-5546msec 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=180379: Fri Aug 14 04:26:25 2026 read: IOPS=0, BW=4046KiB/s (4143kB/s)(12.0MiB/3037msec) clat (msec): min=794, max=1076, avg=973.16, stdev=155.46 lat (msec): min=794, max=1076, avg=973.16, stdev=155.46 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1053], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7984, max= 8047, per=100.00%, avg=8015.50, stdev=44.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=9.39%, ctx=274, 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=180380: Fri Aug 14 04:26:25 2026 read: IOPS=0, BW=847KiB/s (867kB/s)(4096KiB/4837msec) clat (nsec): min=903449k, max=903449k, avg=903448719.00, stdev= 0.00 lat (nsec): min=903451k, max=903451k, avg=903450982.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7953, max= 7953, per=100.00%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1694KiB/s (1734kB/s)(8192KiB/4837msec); 0 zone resets clat (msec): min=822, max=2921, avg=1872.27, stdev=1484.30 lat (msec): min=823, max=2921, avg=1872.52, stdev=1484.17 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 2937], | 70.00th=[ 2937], 80.00th=[ 2937], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.99%, ctx=117, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180381: Fri Aug 14 04:26:25 2026 write: IOPS=0, BW=2678KiB/s (2742kB/s)(12.0MiB/4589msec); 0 zone resets clat (msec): min=722, max=2152, avg=1433.86, stdev=714.59 lat (msec): min=723, max=2152, avg=1434.16, stdev=714.58 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8094, max= 8175, per=100.00%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.42%, ctx=68, 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=180382: Fri Aug 14 04:26:25 2026 write: IOPS=0, BW=2929KiB/s (3000kB/s)(12.0MiB/4195msec); 0 zone resets clat (msec): min=921, max=2086, avg=1359.46, stdev=633.84 lat (msec): min=921, max=2086, avg=1359.85, stdev=633.75 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 2089], 80.00th=[ 2089], 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= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.84%, ctx=58, 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=3387KiB/s (3469kB/s), 847KiB/s-4046KiB/s (867kB/s-4143kB/s), io=16.0MiB (16.8MB), run=3037-4837msec WRITE: bw=6774KiB/s (6937kB/s), 1694KiB/s-2929KiB/s (1734kB/s-3000kB/s), io=32.0MiB (33.6MB), run=4195-4837msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180383: Fri Aug 14 04:26:25 2026 read: IOPS=0, BW=3970KiB/s (4066kB/s)(12.0MiB/3095msec) clat (msec): min=831, max=1120, avg=990.54, stdev=146.66 lat (msec): min=831, max=1120, avg=990.54, stdev=146.66 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.36%, ctx=49, majf=0, minf=7 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=180384: Fri Aug 14 04:26:25 2026 read: IOPS=0, BW=849KiB/s (869kB/s)(4096KiB/4827msec) clat (nsec): min=1213.5M, max=1213.5M, avg=1213479633.00, stdev= 0.00 lat (nsec): min=1213.5M, max=1213.5M, avg=1213481558.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1697KiB/s (1738kB/s)(8192KiB/4827msec); 0 zone resets clat (msec): min=493, max=2812, avg=1653.32, stdev=1639.68 lat (msec): min=494, max=2813, avg=1653.61, stdev=1639.71 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 2802], | 70.00th=[ 2802], 80.00th=[ 2802], 90.00th=[ 2802], 95.00th=[ 2802], | 99.00th=[ 2802], 99.50th=[ 2802], 99.90th=[ 2802], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.24%, ctx=64, 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=180385: Fri Aug 14 04:26:25 2026 write: IOPS=0, BW=2539KiB/s (2600kB/s)(12.0MiB/4840msec); 0 zone resets clat (msec): min=648, max=2970, avg=1519.95, stdev=1264.81 lat (msec): min=648, max=2970, avg=1520.26, stdev=1264.79 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 2970], 80.00th=[ 2970], 90.00th=[ 2970], 95.00th=[ 2970], | 99.00th=[ 2970], 99.50th=[ 2970], 99.90th=[ 2970], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.90%, ctx=49, majf=0, minf=7 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=180386: Fri Aug 14 04:26:25 2026 write: IOPS=0, BW=3170KiB/s (3246kB/s)(12.0MiB/3876msec); 0 zone resets clat (msec): min=996, max=1633, avg=1252.62, stdev=336.39 lat (msec): min=996, max=1633, avg=1252.85, stdev=336.45 clat percentiles (msec): | 1.00th=[ 995], 5.00th=[ 995], 10.00th=[ 995], 20.00th=[ 995], | 30.00th=[ 995], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 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] bw ( KiB/s): min= 8094, max= 8110, per=100.00%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.79%, ctx=44, majf=0, minf=7 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=3394KiB/s (3476kB/s), 849KiB/s-3970KiB/s (869kB/s-4066kB/s), io=16.0MiB (16.8MB), run=3095-4827msec WRITE: bw=6770KiB/s (6933kB/s), 1697KiB/s-3170KiB/s (1738kB/s-3246kB/s), io=32.0MiB (33.6MB), run=3876-4840msec