== sanity test 398b: DIO and buffer IO race ============== 12:49:37 (1785084577) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.71201 s, 6.5 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=179072: Sun Jul 26 12:52:06 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5992KiB/125656msec) clat (usec): min=46, max=374889, avg=45919.50, stdev=31352.48 lat (usec): min=46, max=374890, avg=45921.51, stdev=31352.29 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 13173], 10.00th=[ 18220], 20.00th=[ 23200], | 30.00th=[ 27919], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 65799], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[158335], 99.50th=[181404], 99.90th=[252707], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 95, per=25.44%, avg=47.82, stdev=18.83, samples=245 iops : min= 1, max= 23, avg=11.31, stdev= 4.72, samples=245 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6296KiB/125656msec); 0 zone resets clat (usec): min=960, max=987841, avg=35858.46, stdev=43178.77 lat (usec): min=961, max=987843, avg=35865.81, stdev=43177.40 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1336], 10.00th=[ 1582], 20.00th=[ 3949], | 30.00th=[ 7570], 40.00th=[ 16909], 50.00th=[ 24773], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[108528], | 99.00th=[154141], 99.50th=[179307], 99.90th=[225444], 99.95th=[985662], | 99.99th=[985662] bw ( KiB/s): min= 15, max= 128, per=25.52%, avg=50.03, stdev=21.13, samples=246 iops : min= 3, max= 32, avg=11.86, stdev= 5.33, samples=246 lat (usec) : 50=0.20%, 100=1.24%, 250=0.13%, 750=0.03%, 1000=0.07% lat (msec) : 2=6.22%, 4=4.20%, 10=6.35%, 20=10.64%, 50=40.62% lat (msec) : 100=24.64%, 250=5.57%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.82%, ctx=6515, 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=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=179073: Sun Jul 26 12:52:06 2026 read: IOPS=11, BW=46.9KiB/s (47.0kB/s)(5940KiB/126762msec) clat (usec): min=45, max=902218, avg=47191.18, stdev=37625.00 lat (usec): min=45, max=902219, avg=47195.10, stdev=37631.14 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 12780], 10.00th=[ 17433], 20.00th=[ 23462], | 30.00th=[ 28967], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 55313], 80.00th=[ 65799], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[158335], 99.50th=[200279], 99.90th=[265290], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 7, max= 111, per=24.68%, avg=46.41, stdev=19.13, samples=249 iops : min= 1, max= 27, avg=10.95, stdev= 4.80, samples=249 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6348KiB/126762msec); 0 zone resets clat (usec): min=730, max=256421, avg=35473.31, stdev=36268.08 lat (usec): min=731, max=256422, avg=35476.68, stdev=36266.48 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1336], 10.00th=[ 1663], 20.00th=[ 4080], | 30.00th=[ 7832], 40.00th=[ 16712], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 83362], 95.00th=[108528], | 99.00th=[158335], 99.50th=[187696], 99.90th=[227541], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 127, per=25.47%, avg=49.92, stdev=22.62, samples=247 iops : min= 1, max= 31, avg=11.83, stdev= 5.70, samples=247 lat (usec) : 50=0.20%, 100=1.20%, 250=0.10%, 750=0.03%, 1000=0.16% lat (msec) : 2=5.70%, 4=4.13%, 10=7.29%, 20=10.16%, 50=39.71% lat (msec) : 100=25.36%, 250=5.86%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.95%, ctx=6527, 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=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=179074: Sun Jul 26 12:52:06 2026 read: IOPS=12, BW=48.2KiB/s (49.3kB/s)(6028KiB/125130msec) clat (usec): min=27, max=273683, avg=46009.93, stdev=32848.60 lat (usec): min=27, max=273683, avg=46011.74, stdev=32848.33 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 9241], 10.00th=[ 15795], 20.00th=[ 22676], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 65274], 90.00th=[ 83362], 95.00th=[107480], | 99.00th=[164627], 99.50th=[200279], 99.90th=[267387], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 143, per=25.47%, avg=47.88, stdev=21.63, samples=246 iops : min= 1, max= 35, avg=11.32, stdev= 5.44, samples=246 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6260KiB/125130msec); 0 zone resets clat (usec): min=815, max=858794, avg=35401.69, stdev=42098.02 lat (usec): min=816, max=858796, avg=35407.63, stdev=42098.32 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1352], 10.00th=[ 1713], 20.00th=[ 3818], | 30.00th=[ 7308], 40.00th=[ 15008], 50.00th=[ 24511], 60.00th=[ 33162], | 70.00th=[ 43779], 80.00th=[ 61604], 90.00th=[ 85459], 95.00th=[109577], | 99.00th=[158335], 99.50th=[181404], 99.90th=[254804], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 127, per=25.44%, avg=49.87, stdev=23.41, samples=245 iops : min= 1, max= 31, avg=11.82, stdev= 5.89, samples=245 lat (usec) : 50=0.49%, 100=1.56%, 250=0.16%, 750=0.03%, 1000=0.13% lat (msec) : 2=5.60%, 4=4.79%, 10=7.52%, 20=10.74%, 50=39.03% lat (msec) : 100=23.70%, 250=6.09%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=4.85%, ctx=6434, 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=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=179076: Sun Jul 26 12:52:06 2026 read: IOPS=11, BW=47.4KiB/s (48.5kB/s)(6052KiB/127719msec) clat (usec): min=34, max=914613, avg=46403.57, stdev=39085.52 lat (usec): min=34, max=914614, avg=46404.98, stdev=39085.54 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9241], 10.00th=[ 16319], 20.00th=[ 22676], | 30.00th=[ 27919], 40.00th=[ 33817], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[200279], 99.90th=[312476], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=47.30, stdev=19.22, samples=250 iops : min= 1, max= 25, avg=11.18, stdev= 4.86, samples=250 write: IOPS=12, BW=48.8KiB/s (49.0kB/s)(6236KiB/127719msec); 0 zone resets clat (usec): min=870, max=225860, avg=36630.05, stdev=37291.61 lat (usec): min=871, max=225861, avg=36641.02, stdev=37284.96 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1598], 20.00th=[ 3851], | 30.00th=[ 7898], 40.00th=[ 17171], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[112722], | 99.00th=[156238], 99.50th=[177210], 99.90th=[206570], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 7, max= 142, per=24.83%, avg=48.66, stdev=23.14, samples=250 iops : min= 1, max= 35, avg=11.52, stdev= 5.83, samples=250 lat (usec) : 50=0.33%, 100=1.69%, 250=0.03%, 750=0.07%, 1000=0.10% lat (msec) : 2=5.92%, 4=4.39%, 10=6.84%, 20=9.51%, 50=39.42% lat (msec) : 100=25.42%, 250=6.18%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.72%, ctx=6485, 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=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=188KiB/s (193kB/s), 46.9KiB/s-48.2KiB/s (47.0kB/s-49.3kB/s), io=23.4MiB (24.6MB), run=125130-127719msec WRITE: bw=197KiB/s (202kB/s), 48.8KiB/s-50.1KiB/s (49.0kB/s-51.3kB/s), io=24.6MiB (25.7MB), run=125130-127719msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179077: Sun Jul 26 12:52:46 2026 read: IOPS=8, BW=35.9KiB/s (36.8kB/s)(5992KiB/166733msec) clat (msec): min=5, max=1033, avg=44.78, stdev=48.10 lat (msec): min=5, max=1033, avg=44.78, stdev=48.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 211], 99.50th=[ 247], 99.90th=[ 347], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 134, per=25.43%, avg=36.36, stdev=24.21, samples=320 iops : min= 1, max= 33, avg= 8.43, stdev= 6.11, samples=320 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(6296KiB/166733msec); 0 zone resets clat (msec): min=9, max=311, avg=63.01, stdev=44.15 lat (msec): min=9, max=311, avg=63.02, stdev=44.15 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 92], 90.00th=[ 123], 95.00th=[ 150], | 99.00th=[ 215], 99.50th=[ 249], 99.90th=[ 288], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 128, per=25.00%, avg=37.49, stdev=23.84, samples=326 iops : min= 1, max= 32, avg= 8.71, stdev= 6.01, samples=326 lat (msec) : 10=2.05%, 20=14.91%, 50=44.60%, 100=25.29%, 250=12.73% lat (msec) : 500=0.39%, 2000=0.03% cpu : usr=0.06%, sys=1.98%, ctx=4999, 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=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=179078: Sun Jul 26 12:52:46 2026 read: IOPS=8, BW=35.5KiB/s (36.3kB/s)(5940KiB/167544msec) clat (msec): min=5, max=970, avg=43.54, stdev=45.35 lat (msec): min=5, max=970, avg=43.54, stdev=45.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 97], 95.00th=[ 133], | 99.00th=[ 182], 99.50th=[ 211], 99.90th=[ 262], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 127, per=25.45%, avg=36.39, stdev=25.54, samples=317 iops : min= 1, max= 31, avg= 8.43, stdev= 6.43, samples=317 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6348KiB/167544msec); 0 zone resets clat (msec): min=8, max=437, avg=64.61, stdev=47.34 lat (msec): min=8, max=437, avg=64.61, stdev=47.34 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 95], 90.00th=[ 129], 95.00th=[ 153], | 99.00th=[ 245], 99.50th=[ 275], 99.90th=[ 321], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 151, per=25.29%, avg=37.94, stdev=24.11, samples=325 iops : min= 1, max= 37, avg= 8.82, stdev= 6.08, samples=325 lat (msec) : 10=2.77%, 20=15.07%, 50=43.49%, 100=24.84%, 250=13.38% lat (msec) : 500=0.42%, 1000=0.03% cpu : usr=0.05%, sys=1.99%, ctx=4956, 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=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=179079: Sun Jul 26 12:52:46 2026 read: IOPS=9, BW=36.5KiB/s (37.3kB/s)(6028KiB/165268msec) clat (msec): min=5, max=334, avg=43.18, stdev=39.36 lat (msec): min=5, max=334, avg=43.18, stdev=39.36 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 100], 95.00th=[ 125], | 99.00th=[ 186], 99.50th=[ 230], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 143, per=25.93%, avg=37.09, stdev=24.95, samples=316 iops : min= 1, max= 35, avg= 8.60, stdev= 6.28, samples=316 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6260KiB/165268msec); 0 zone resets clat (msec): min=11, max=937, avg=63.78, stdev=51.47 lat (msec): min=11, max=937, avg=63.78, stdev=51.47 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 224], 99.50th=[ 266], 99.90th=[ 435], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 119, per=25.17%, avg=37.75, stdev=24.56, samples=322 iops : min= 1, max= 29, avg= 8.77, stdev= 6.19, samples=322 lat (msec) : 10=1.95%, 20=15.85%, 50=44.92%, 100=23.93%, 250=12.86% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.06%, sys=1.96%, ctx=4906, 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=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=179080: Sun Jul 26 12:52:46 2026 read: IOPS=9, BW=36.3KiB/s (37.2kB/s)(6052KiB/166724msec) clat (msec): min=5, max=281, avg=44.45, stdev=40.75 lat (msec): min=5, max=281, avg=44.46, stdev=40.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 97], 95.00th=[ 128], | 99.00th=[ 209], 99.50th=[ 251], 99.90th=[ 268], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 135, per=26.17%, avg=37.43, stdev=24.97, samples=314 iops : min= 1, max= 33, avg= 8.69, stdev= 6.28, samples=314 write: IOPS=9, BW=37.4KiB/s (38.3kB/s)(6236KiB/166724msec); 0 zone resets clat (msec): min=10, max=1135, avg=63.65, stdev=53.75 lat (msec): min=10, max=1135, avg=63.66, stdev=53.75 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 59], | 70.00th=[ 72], 80.00th=[ 92], 90.00th=[ 129], 95.00th=[ 159], | 99.00th=[ 228], 99.50th=[ 268], 99.90th=[ 414], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 112, per=24.88%, avg=37.33, stdev=24.03, samples=324 iops : min= 1, max= 28, avg= 8.66, stdev= 6.06, samples=324 lat (msec) : 10=2.12%, 20=15.20%, 50=44.79%, 100=24.74%, 250=12.57% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.05%, sys=1.90%, ctx=4843, 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=143KiB/s (147kB/s), 35.5KiB/s-36.5KiB/s (36.3kB/s-37.3kB/s), io=23.4MiB (24.6MB), run=165268-167544msec WRITE: bw=150KiB/s (154kB/s), 37.4KiB/s-37.9KiB/s (38.3kB/s-38.8kB/s), io=24.6MiB (25.7MB), run=165268-167544msec 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=179122: Sun Jul 26 12:53:30 2026 read: IOPS=11, BW=184KiB/s (189kB/s)(5920KiB/32124msec) clat (usec): min=40, max=208913, avg=46183.34, stdev=28249.95 lat (usec): min=41, max=208915, avg=46184.51, stdev=28249.96 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 75], 10.00th=[ 16581], 20.00th=[ 25560], | 30.00th=[ 31327], 40.00th=[ 37487], 50.00th=[ 42206], 60.00th=[ 47449], | 70.00th=[ 56361], 80.00th=[ 64226], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[135267], 99.50th=[193987], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 63, max= 382, per=24.50%, avg=182.54, stdev=64.76, samples=63 iops : min= 3, max= 23, avg=10.63, stdev= 4.11, samples=63 write: IOPS=12, BW=198KiB/s (203kB/s)(6368KiB/32124msec); 0 zone resets clat (usec): min=1285, max=212405, avg=37108.35, stdev=38029.77 lat (usec): min=1288, max=212407, avg=37110.55, stdev=38029.72 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2008], 10.00th=[ 2966], 20.00th=[ 5604], | 30.00th=[ 9241], 40.00th=[ 16909], 50.00th=[ 25297], 60.00th=[ 32900], | 70.00th=[ 47449], 80.00th=[ 64750], 90.00th=[ 87557], 95.00th=[119014], | 99.00th=[160433], 99.50th=[208667], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 31, max= 383, per=25.14%, avg=197.08, stdev=82.24, samples=63 iops : min= 1, max= 23, avg=11.56, stdev= 5.20, samples=63 lat (usec) : 50=0.39%, 100=2.34%, 250=0.26%, 500=0.13% lat (msec) : 2=2.47%, 4=4.82%, 10=9.51%, 20=9.90%, 50=37.50% lat (msec) : 100=26.69%, 250=5.99% cpu : usr=0.07%, sys=5.25%, ctx=1668, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179123: Sun Jul 26 12:53:30 2026 read: IOPS=11, BW=180KiB/s (185kB/s)(5744KiB/31851msec) clat (usec): min=41, max=231163, avg=46117.71, stdev=28117.87 lat (usec): min=41, max=231163, avg=46119.07, stdev=28117.69 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 16319], 20.00th=[ 25822], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 44303], 60.00th=[ 50070], | 70.00th=[ 55837], 80.00th=[ 64750], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[145753], 99.50th=[149947], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 31, max= 315, per=24.18%, avg=180.14, stdev=66.75, samples=63 iops : min= 1, max= 19, avg=10.48, stdev= 4.26, samples=63 write: IOPS=12, BW=205KiB/s (210kB/s)(6544KiB/31851msec); 0 zone resets clat (usec): min=1463, max=217107, avg=36888.81, stdev=34787.14 lat (usec): min=1465, max=217110, avg=36892.24, stdev=34786.63 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2057], 10.00th=[ 2966], 20.00th=[ 6194], | 30.00th=[ 10159], 40.00th=[ 21103], 50.00th=[ 27919], 60.00th=[ 36439], | 70.00th=[ 47973], 80.00th=[ 63177], 90.00th=[ 86508], 95.00th=[ 99091], | 99.00th=[152044], 99.50th=[156238], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 61, max= 510, per=26.13%, avg=204.84, stdev=87.23, samples=63 iops : min= 3, max= 31, avg=12.03, stdev= 5.51, samples=63 lat (usec) : 50=0.39%, 100=2.99%, 750=0.13% lat (msec) : 2=2.34%, 4=4.69%, 10=8.33%, 20=8.59%, 50=38.41% lat (msec) : 100=30.08%, 250=4.04% cpu : usr=0.07%, sys=5.48%, ctx=1757, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179124: Sun Jul 26 12:53:30 2026 read: IOPS=12, BW=200KiB/s (205kB/s)(6256KiB/31245msec) clat (usec): min=34, max=218542, avg=44418.49, stdev=30554.98 lat (usec): min=34, max=218544, avg=44419.87, stdev=30554.98 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 63], 10.00th=[ 113], 20.00th=[ 22938], | 30.00th=[ 28705], 40.00th=[ 34866], 50.00th=[ 40109], 60.00th=[ 45351], | 70.00th=[ 56361], 80.00th=[ 63701], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[160433], 99.50th=[193987], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 63, max= 383, per=27.01%, avg=201.23, stdev=78.57, samples=61 iops : min= 3, max= 23, avg=11.80, stdev= 4.98, samples=61 write: IOPS=12, BW=193KiB/s (198kB/s)(6032KiB/31245msec); 0 zone resets clat (usec): min=1144, max=153387, avg=36629.23, stdev=34201.14 lat (usec): min=1144, max=153390, avg=36631.33, stdev=34201.20 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 2212], 10.00th=[ 3654], 20.00th=[ 6783], | 30.00th=[ 10945], 40.00th=[ 18744], 50.00th=[ 26084], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 89654], 95.00th=[108528], | 99.00th=[141558], 99.50th=[147850], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 63, max= 379, per=24.26%, avg=190.18, stdev=75.34, samples=61 iops : min= 3, max= 23, avg=11.11, stdev= 4.75, samples=61 lat (usec) : 50=0.78%, 100=4.17%, 250=0.39% lat (msec) : 2=2.08%, 4=4.04%, 10=7.42%, 20=9.77%, 50=40.62% lat (msec) : 100=25.13%, 250=5.60% cpu : usr=0.06%, sys=5.13%, ctx=1725, 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=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=179126: Sun Jul 26 12:53:30 2026 read: IOPS=11, BW=191KiB/s (196kB/s)(6032KiB/31551msec) clat (usec): min=46, max=195793, avg=46053.14, stdev=33301.58 lat (usec): min=48, max=195794, avg=46054.48, stdev=33301.56 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 60], 10.00th=[ 73], 20.00th=[ 23200], | 30.00th=[ 28967], 40.00th=[ 35390], 50.00th=[ 41157], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[114820], | 99.00th=[147850], 99.50th=[189793], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 440, per=25.47%, avg=189.76, stdev=80.33, samples=62 iops : min= 1, max= 27, avg=11.08, stdev= 5.07, samples=62 write: IOPS=12, BW=198KiB/s (203kB/s)(6256KiB/31551msec); 0 zone resets clat (usec): min=1623, max=180034, avg=35702.83, stdev=34917.68 lat (usec): min=1625, max=180036, avg=35704.84, stdev=34917.72 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2057], 10.00th=[ 2769], 20.00th=[ 5604], | 30.00th=[ 10421], 40.00th=[ 18220], 50.00th=[ 25035], 60.00th=[ 32900], | 70.00th=[ 45876], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[160433], 99.50th=[170918], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 62, max= 384, per=25.33%, avg=198.56, stdev=77.47, samples=62 iops : min= 3, max= 24, avg=11.63, stdev= 4.89, samples=62 lat (usec) : 50=0.13%, 100=5.73%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=1.95%, 4=5.73%, 10=7.42%, 20=8.85%, 50=38.93% lat (msec) : 100=24.48%, 250=6.25% cpu : usr=0.06%, sys=5.17%, ctx=1670, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=746KiB/s (764kB/s), 180KiB/s-200KiB/s (185kB/s-205kB/s), io=23.4MiB (24.5MB), run=31245-32124msec WRITE: bw=784KiB/s (803kB/s), 193KiB/s-205KiB/s (198kB/s-210kB/s), io=24.6MiB (25.8MB), run=31245-32124msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179125: Sun Jul 26 12:53:42 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(5920KiB/43179msec) clat (msec): min=8, max=270, avg=44.92, stdev=39.47 lat (msec): min=8, max=270, avg=44.92, stdev=39.47 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 129], | 99.00th=[ 205], 99.50th=[ 228], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 444, per=25.53%, avg=139.89, stdev=88.06, samples=83 iops : min= 1, max= 27, avg= 7.90, stdev= 5.53, samples=83 write: IOPS=9, BW=147KiB/s (151kB/s)(6368KiB/43179msec); 0 zone resets clat (msec): min=11, max=281, avg=66.42, stdev=45.60 lat (msec): min=11, max=281, avg=66.43, stdev=45.61 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 63], | 70.00th=[ 79], 80.00th=[ 95], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 251], 99.50th=[ 253], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 473, per=25.77%, avg=148.67, stdev=85.86, samples=84 iops : min= 1, max= 29, avg= 8.46, stdev= 5.44, samples=84 lat (msec) : 10=0.52%, 20=14.19%, 50=44.92%, 100=25.78%, 250=13.93% lat (msec) : 500=0.65% cpu : usr=0.03%, sys=1.96%, ctx=1211, 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=179127: Sun Jul 26 12:53:42 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(5744KiB/43658msec) clat (msec): min=6, max=300, avg=46.52, stdev=42.58 lat (msec): min=6, max=300, avg=46.52, stdev=42.58 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 41], | 70.00th=[ 52], 80.00th=[ 68], 90.00th=[ 102], 95.00th=[ 140], | 99.00th=[ 207], 99.50th=[ 232], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 536, per=25.24%, avg=138.30, stdev=88.40, samples=81 iops : min= 1, max= 33, avg= 7.81, stdev= 5.59, samples=81 write: IOPS=9, BW=150KiB/s (153kB/s)(6544KiB/43658msec); 0 zone resets clat (msec): min=11, max=295, avg=65.46, stdev=44.54 lat (msec): min=11, max=295, avg=65.46, stdev=44.54 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 33], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 75], 80.00th=[ 92], 90.00th=[ 125], 95.00th=[ 155], | 99.00th=[ 218], 99.50th=[ 292], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 30, max= 380, per=26.36%, avg=152.12, stdev=84.60, samples=84 iops : min= 1, max= 23, avg= 8.69, stdev= 5.36, samples=84 lat (msec) : 10=1.69%, 20=12.11%, 50=45.05%, 100=27.34%, 250=13.28% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.98%, ctx=1193, 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=179128: Sun Jul 26 12:53:42 2026 read: IOPS=9, BW=144KiB/s (147kB/s)(6256KiB/43443msec) clat (msec): min=7, max=248, avg=43.34, stdev=35.86 lat (msec): min=7, max=248, avg=43.34, stdev=35.86 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 46], 80.00th=[ 60], 90.00th=[ 96], 95.00th=[ 126], | 99.00th=[ 176], 99.50th=[ 201], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 30, max= 441, per=26.59%, avg=145.70, stdev=98.43, samples=84 iops : min= 1, max= 27, avg= 8.27, stdev= 6.22, samples=84 write: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43443msec); 0 zone resets clat (msec): min=11, max=310, avg=69.30, stdev=47.40 lat (msec): min=11, max=310, avg=69.30, stdev=47.40 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 106], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 504, per=23.58%, avg=136.05, stdev=77.71, samples=85 iops : min= 1, max= 31, avg= 7.67, stdev= 4.91, samples=85 lat (msec) : 10=1.30%, 20=11.98%, 50=47.40%, 100=23.70%, 250=15.10% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.87%, ctx=1187, 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=179129: Sun Jul 26 12:53:42 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43493msec) clat (msec): min=7, max=300, avg=47.48, stdev=41.48 lat (msec): min=7, max=300, avg=47.48, stdev=41.48 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 97], 95.00th=[ 138], | 99.00th=[ 213], 99.50th=[ 259], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 412, per=25.91%, avg=142.01, stdev=88.70, samples=82 iops : min= 1, max= 25, avg= 8.04, stdev= 5.59, samples=82 write: IOPS=8, BW=144KiB/s (147kB/s)(6256KiB/43493msec); 0 zone resets clat (msec): min=14, max=301, avg=64.28, stdev=43.44 lat (msec): min=14, max=301, avg=64.28, stdev=43.44 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 73], 80.00th=[ 88], 90.00th=[ 124], 95.00th=[ 153], | 99.00th=[ 245], 99.50th=[ 257], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 380, per=24.99%, avg=144.21, stdev=85.18, samples=84 iops : min= 1, max= 23, avg= 8.18, stdev= 5.39, samples=84 lat (msec) : 10=1.17%, 20=11.85%, 50=47.27%, 100=27.08%, 250=11.98% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=2.02%, ctx=1189, 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=549KiB/s (562kB/s), 132KiB/s-144KiB/s (135kB/s-147kB/s), io=23.4MiB (24.5MB), run=43179-43658msec WRITE: bw=577KiB/s (591kB/s), 139KiB/s-150KiB/s (142kB/s-153kB/s), io=24.6MiB (25.8MB), run=43179-43658msec 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=179142: Sun Jul 26 12:53:58 2026 read: IOPS=1, BW=1769KiB/s (1812kB/s)(7168KiB/4051msec) clat (msec): min=146, max=332, avg=228.29, stdev=76.41 lat (msec): min=146, max=332, avg=228.29, stdev=76.41 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 148], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 230], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 313], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1765, max= 4023, per=65.66%, avg=2381.00, stdev=925.55, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1264KiB/s (1294kB/s)(5120KiB/4051msec); 0 zone resets clat (msec): min=215, max=629, avg=451.10, stdev=165.34 lat (msec): min=216, max=629, avg=451.20, stdev=165.33 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 535], 80.00th=[ 535], 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= 1765, max= 3126, per=44.08%, avg=2237.25, stdev=605.45, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=2.79%, ctx=80, 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=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=179143: Sun Jul 26 12:53:58 2026 read: IOPS=0, BW=387KiB/s (397kB/s)(2048KiB/5289msec) clat (msec): min=174, max=343, avg=258.72, stdev=119.43 lat (msec): min=174, max=343, avg=258.72, stdev=119.43 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 1790, max= 2011, per=52.41%, avg=1900.50, stdev=156.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1936KiB/s (1983kB/s)(10.0MiB/5289msec); 0 zone resets clat (msec): min=158, max=1236, avg=448.19, stdev=332.51 lat (msec): min=158, max=1236, avg=448.44, stdev=332.65 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 236], 50.00th=[ 334], 60.00th=[ 384], | 70.00th=[ 523], 80.00th=[ 575], 90.00th=[ 684], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 2023, max= 4087, per=54.05%, avg=2743.80, stdev=992.09, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=5.58%, ctx=111, 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=179144: Sun Jul 26 12:53:58 2026 read: IOPS=1, BW=1488KiB/s (1523kB/s)(6144KiB/4130msec) clat (msec): min=119, max=562, avg=271.12, stdev=215.81 lat (msec): min=119, max=562, avg=271.12, stdev=215.81 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 130], 50.00th=[ 130], 60.00th=[ 153], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2011, max= 4087, per=70.02%, avg=2539.00, stdev=1032.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1488KiB/s (1523kB/s)(6144KiB/4130msec); 0 zone resets clat (msec): min=149, max=1198, avg=408.93, stdev=405.64 lat (msec): min=149, max=1198, avg=409.02, stdev=405.64 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 247], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1765, max= 4023, per=46.39%, avg=2354.80, stdev=938.79, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=66.67%, 500=8.33%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=3.25%, ctx=108, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179145: Sun Jul 26 12:53:58 2026 read: IOPS=0, BW=907KiB/s (928kB/s)(5120KiB/5648msec) clat (msec): min=62, max=517, avg=264.03, stdev=196.58 lat (msec): min=62, max=517, avg=264.04, stdev=196.58 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 63], | 30.00th=[ 96], 40.00th=[ 96], 50.00th=[ 236], 60.00th=[ 236], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 2043, max= 6131, per=100.00%, avg=4087.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1269KiB/s (1300kB/s)(7168KiB/5648msec); 0 zone resets clat (msec): min=117, max=935, avg=536.05, stdev=332.99 lat (msec): min=118, max=935, avg=536.28, stdev=332.77 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 226], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 676], 60.00th=[ 709], | 70.00th=[ 709], 80.00th=[ 852], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1558, max= 4071, per=44.61%, avg=2264.40, stdev=1035.15, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=8.33%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=4.21%, ctx=102, 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=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=3626KiB/s (3713kB/s), 387KiB/s-1769KiB/s (397kB/s-1812kB/s), io=20.0MiB (20.0MB), run=4051-5648msec WRITE: bw=5076KiB/s (5198kB/s), 1264KiB/s-1936KiB/s (1294kB/s-1983kB/s), io=28.0MiB (29.4MB), run=4051-5648msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179146: Sun Jul 26 12:54:01 2026 read: IOPS=1, BW=1706KiB/s (1747kB/s)(7168KiB/4202msec) clat (usec): min=615, max=422821, avg=275953.26, stdev=154803.81 lat (usec): min=616, max=422823, avg=275954.74, stdev=154803.99 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[ 619], 10.00th=[ 619], 20.00th=[177210], | 30.00th=[206570], 40.00th=[206570], 50.00th=[333448], 60.00th=[379585], | 70.00th=[379585], 80.00th=[408945], 90.00th=[421528], 95.00th=[421528], | 99.00th=[421528], 99.50th=[421528], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 1950, max= 6144, per=100.00%, avg=3368.33, stdev=2403.99, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 write: IOPS=1, BW=1218KiB/s (1248kB/s)(5120KiB/4202msec); 0 zone resets clat (msec): min=219, max=584, avg=365.59, stdev=133.56 lat (msec): min=219, max=584, avg=366.42, stdev=133.41 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1892, max= 2019, per=56.20%, avg=1983.25, stdev=60.95, 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=58.33%, 750=8.33% cpu : usr=0.05%, sys=10.02%, ctx=149, 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=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=179147: Sun Jul 26 12:54:01 2026 read: IOPS=0, BW=434KiB/s (444kB/s)(2048KiB/4723msec) clat (msec): min=98, max=257, avg=177.66, stdev=112.62 lat (msec): min=98, max=257, avg=177.66, stdev=112.62 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=[ 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= 1899, max= 2039, per=78.10%, avg=1969.00, stdev=98.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2168KiB/s (2220kB/s)(10.0MiB/4723msec); 0 zone resets clat (msec): min=116, max=958, avg=428.86, stdev=249.29 lat (msec): min=116, max=958, avg=429.05, stdev=249.18 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 209], | 30.00th=[ 292], 40.00th=[ 321], 50.00th=[ 326], 60.00th=[ 376], | 70.00th=[ 426], 80.00th=[ 584], 90.00th=[ 684], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1899, max= 4079, per=63.85%, avg=2253.12, stdev=739.65, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 100=8.33%, 250=16.67%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=9.55%, ctx=198, 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=179148: Sun Jul 26 12:54:01 2026 read: IOPS=0, BW=756KiB/s (775kB/s)(6144KiB/8123msec) clat (usec): min=539, max=4682.8k, avg=952228.83, stdev=1834509.90 lat (usec): min=541, max=4682.8k, avg=952230.38, stdev=1834509.69 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], | 20.00th=[ 123208], 30.00th=[ 123208], 40.00th=[ 183501], | 50.00th=[ 183501], 60.00th=[ 242222], 70.00th=[ 480248], | 80.00th=[ 480248], 90.00th=[4664067], 95.00th=[4664067], | 99.00th=[4664067], 99.50th=[4664067], 99.90th=[4664067], | 99.95th=[4664067], 99.99th=[4664067] bw ( KiB/s): min= 1950, max= 6071, per=100.00%, avg=3346.67, stdev=2359.59, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=756KiB/s (775kB/s)(6144KiB/8123msec); 0 zone resets clat (msec): min=155, max=620, avg=320.75, stdev=182.88 lat (msec): min=155, max=620, avg=321.10, stdev=183.01 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 334], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1892, max= 4096, per=71.00%, avg=2505.50, stdev=1061.98, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=6.48%, ctx=578, 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=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=179149: Sun Jul 26 12:54:01 2026 read: IOPS=1, BW=1230KiB/s (1259kB/s)(5120KiB/4164msec) clat (usec): min=388, max=481382, avg=184684.11, stdev=251968.15 lat (usec): min=389, max=481383, avg=184687.28, stdev=251966.16 clat percentiles (usec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 453], 40.00th=[ 453], 50.00th=[ 2147], 60.00th=[ 2147], | 70.00th=[438305], 80.00th=[438305], 90.00th=[480248], 95.00th=[480248], | 99.00th=[480248], 99.50th=[480248], 99.90th=[480248], 99.95th=[480248], | 99.99th=[480248] bw ( KiB/s): min= 7571, max= 7571, per=100.00%, avg=7571.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1721KiB/s (1763kB/s)(7168KiB/4164msec); 0 zone resets clat (msec): min=189, max=809, avg=415.33, stdev=202.26 lat (msec): min=189, max=809, avg=415.41, stdev=202.26 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 317], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 338], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 535], 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= 1448, max= 2019, per=53.49%, avg=1887.80, stdev=247.42, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=16.67% lat (msec) : 4=8.33%, 250=8.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.10%, sys=10.79%, ctx=187, 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=2521KiB/s (2582kB/s), 434KiB/s-1706KiB/s (444kB/s-1747kB/s), io=20.0MiB (20.0MB), run=4164-8123msec WRITE: bw=3530KiB/s (3614kB/s), 756KiB/s-2168KiB/s (775kB/s-2220kB/s), io=28.0MiB (29.4MB), run=4164-8123msec 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=179157: Sun Jul 26 12:54:17 2026 read: IOPS=1, BW=5251KiB/s (5377kB/s)(12.0MiB/2340msec) clat (msec): min=647, max=858, avg=749.64, stdev=105.93 lat (msec): min=647, max=858, avg=749.64, stdev=105.93 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=12.48%, ctx=294, 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=179158: Sun Jul 26 12:54:17 2026 read: IOPS=0, BW=1514KiB/s (1550kB/s)(4096KiB/2706msec) clat (nsec): min=762960k, max=762960k, avg=762959845.00, stdev= 0.00 lat (nsec): min=762963k, max=762963k, avg=762962617.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 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= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3027KiB/s (3100kB/s)(8192KiB/2706msec); 0 zone resets clat (msec): min=341, max=1387, avg=864.54, stdev=739.01 lat (msec): min=342, max=1387, avg=865.11, stdev=738.70 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8143, max= 8143, per=75.62%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.33%, ctx=85, 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=179159: Sun Jul 26 12:54:17 2026 write: IOPS=0, BW=4038KiB/s (4135kB/s)(12.0MiB/3043msec); 0 zone resets clat (msec): min=659, max=1203, avg=939.50, stdev=272.06 lat (msec): min=660, max=1203, avg=940.47, stdev=271.84 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8062, max= 8143, per=75.25%, avg=8102.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.57%, ctx=85, 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=179160: Sun Jul 26 12:54:17 2026 write: IOPS=0, BW=4089KiB/s (4187kB/s)(12.0MiB/3005msec); 0 zone resets clat (msec): min=358, max=2035, avg=944.03, stdev=945.66 lat (msec): min=359, max=2035, avg=944.32, stdev=945.72 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 5603, max= 8078, per=63.53%, avg=6840.50, stdev=1750.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.46%, ctx=66, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6055KiB/s (6200kB/s), 1514KiB/s-5251KiB/s (1550kB/s-5377kB/s), io=16.0MiB (16.8MB), run=2340-2706msec WRITE: bw=10.5MiB/s (11.0MB/s), 3027KiB/s-4089KiB/s (3100kB/s-4187kB/s), io=32.0MiB (33.6MB), run=2706-3043msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179161: Sun Jul 26 12:54:17 2026 read: IOPS=0, BW=3572KiB/s (3658kB/s)(12.0MiB/3440msec) clat (msec): min=515, max=1640, avg=1097.92, stdev=563.52 lat (msec): min=515, max=1640, avg=1097.92, stdev=563.52 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.82%, ctx=81, 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=179162: Sun Jul 26 12:54:17 2026 read: IOPS=0, BW=1195KiB/s (1224kB/s)(4096KiB/3427msec) clat (nsec): min=1544.8M, max=1544.8M, avg=1544792944.00, stdev= 0.00 lat (nsec): min=1544.8M, max=1544.8M, avg=1544795748.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1552], 5.00th=[ 1552], 10.00th=[ 1552], 20.00th=[ 1552], | 30.00th=[ 1552], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2390KiB/s (2448kB/s)(8192KiB/3427msec); 0 zone resets clat (msec): min=895, max=908, avg=902.38, stdev= 9.18 lat (msec): min=896, max=909, avg=902.76, stdev= 9.17 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 911], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8192, max= 8192, per=87.43%, 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=3.27%, ctx=57, 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=179163: Sun Jul 26 12:54:17 2026 write: IOPS=0, BW=3514KiB/s (3598kB/s)(12.0MiB/3497msec); 0 zone resets clat (msec): min=410, max=2376, avg=1141.53, stdev=1075.84 lat (msec): min=411, max=2377, avg=1141.95, stdev=1075.86 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8192, max= 8192, per=87.43%, 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%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.92%, ctx=44, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179164: Sun Jul 26 12:54:17 2026 write: IOPS=0, BW=3951KiB/s (4046kB/s)(12.0MiB/3110msec); 0 zone resets clat (msec): min=701, max=1438, avg=1015.55, stdev=379.96 lat (msec): min=702, max=1438, avg=1015.99, stdev=380.07 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8047, max= 8062, per=85.96%, avg=8054.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.95%, ctx=56, 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=4763KiB/s (4877kB/s), 1195KiB/s-3572KiB/s (1224kB/s-3658kB/s), io=16.0MiB (16.8MB), run=3427-3440msec WRITE: bw=9370KiB/s (9595kB/s), 2390KiB/s-3951KiB/s (2448kB/s-4046kB/s), io=32.0MiB (33.6MB), run=3110-3497msec