== sanity test 398b: DIO and buffer IO race ============== 22:46:59 (1776998819) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.83773 s, 8.6 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=148766: Thu Apr 23 22:49:11 2026 read: IOPS=13, BW=52.8KiB/s (54.1kB/s)(5992KiB/113401msec) clat (usec): min=32, max=519441, avg=37169.52, stdev=30454.55 lat (usec): min=32, max=519442, avg=37170.84, stdev=30454.57 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 562], 20.00th=[ 17171], | 30.00th=[ 21890], 40.00th=[ 26608], 50.00th=[ 32637], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 54789], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[132645], 99.50th=[198181], 99.90th=[270533], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=52.57, stdev=20.13, samples=223 iops : min= 1, max= 25, avg=12.49, stdev= 5.07, samples=223 write: IOPS=13, BW=55.5KiB/s (56.9kB/s)(6296KiB/113401msec); 0 zone resets clat (usec): min=1060, max=825847, avg=36395.88, stdev=40002.13 lat (usec): min=1060, max=825849, avg=36399.60, stdev=40003.40 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 1860], 20.00th=[ 4424], | 30.00th=[ 8586], 40.00th=[ 19006], 50.00th=[ 28443], 60.00th=[ 36963], | 70.00th=[ 47449], 80.00th=[ 61604], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[158335], 99.50th=[189793], 99.90th=[225444], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 151, per=25.33%, avg=55.48, stdev=21.45, samples=222 iops : min= 1, max= 37, avg=13.23, stdev= 5.40, samples=222 lat (usec) : 50=1.04%, 100=3.39%, 250=0.29%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=5.37%, 4=4.20%, 10=7.39%, 20=11.78%, 50=39.39% lat (msec) : 100=22.98%, 250=3.84%, 500=0.03%, 750=0.03%, 1000=0.03% cpu : usr=0.09%, sys=6.12%, ctx=6898, 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=148767: Thu Apr 23 22:49:11 2026 read: IOPS=12, BW=51.9KiB/s (53.1kB/s)(5940KiB/114488msec) clat (usec): min=25, max=853532, avg=36736.09, stdev=35270.47 lat (usec): min=25, max=853533, avg=36739.81, stdev=35271.71 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 807], 20.00th=[ 17171], | 30.00th=[ 21890], 40.00th=[ 26084], 50.00th=[ 31327], 60.00th=[ 36963], | 70.00th=[ 44303], 80.00th=[ 54264], 90.00th=[ 68682], 95.00th=[ 81265], | 99.00th=[115868], 99.50th=[143655], 99.90th=[463471], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 140, per=24.77%, avg=51.77, stdev=21.73, samples=224 iops : min= 1, max= 35, avg=12.29, stdev= 5.48, samples=224 write: IOPS=13, BW=55.4KiB/s (56.8kB/s)(6348KiB/114488msec); 0 zone resets clat (usec): min=1071, max=398151, avg=37502.56, stdev=38994.50 lat (usec): min=1072, max=398152, avg=37506.26, stdev=38993.24 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 2343], 20.00th=[ 5080], | 30.00th=[ 9110], 40.00th=[ 19006], 50.00th=[ 28443], 60.00th=[ 36963], | 70.00th=[ 48497], 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[162530], 99.50th=[206570], 99.90th=[320865], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 15, max= 135, per=25.13%, avg=55.04, stdev=21.33, samples=225 iops : min= 3, max= 33, avg=13.11, stdev= 5.36, samples=225 lat (usec) : 50=0.72%, 100=3.81%, 250=0.26%, 500=0.03%, 1000=0.07% lat (msec) : 2=4.59%, 4=4.23%, 10=7.71%, 20=12.21%, 50=40.10% lat (msec) : 100=22.01%, 250=4.00%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=5.92%, ctx=6737, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148768: Thu Apr 23 22:49:11 2026 read: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6028KiB/114265msec) clat (usec): min=24, max=296827, avg=37614.92, stdev=27544.23 lat (usec): min=24, max=296828, avg=37616.93, stdev=27544.16 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 196], 20.00th=[ 17957], | 30.00th=[ 22676], 40.00th=[ 27132], 50.00th=[ 33162], 60.00th=[ 39060], | 70.00th=[ 46924], 80.00th=[ 56361], 90.00th=[ 68682], 95.00th=[ 86508], | 99.00th=[122160], 99.50th=[156238], 99.90th=[214959], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 112, per=25.03%, avg=52.32, stdev=20.33, samples=224 iops : min= 1, max= 28, avg=12.42, stdev= 5.10, samples=224 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6260KiB/114265msec); 0 zone resets clat (usec): min=1060, max=804726, avg=36540.70, stdev=42282.74 lat (usec): min=1060, max=804728, avg=36551.38, stdev=42278.18 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1352], 10.00th=[ 1876], 20.00th=[ 4146], | 30.00th=[ 7373], 40.00th=[ 16319], 50.00th=[ 26870], 60.00th=[ 36439], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 82314], 95.00th=[100140], | 99.00th=[156238], 99.50th=[214959], 99.90th=[362808], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 15, max= 125, per=24.89%, avg=54.50, stdev=20.78, samples=223 iops : min= 3, max= 31, avg=12.98, stdev= 5.23, samples=223 lat (usec) : 50=1.04%, 100=3.65%, 250=0.29%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=5.60%, 4=4.33%, 10=8.53%, 20=10.29%, 50=38.28% lat (msec) : 100=23.67%, 250=3.87%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=6.17%, ctx=6780, 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=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=148769: Thu Apr 23 22:49:11 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(6052KiB/113971msec) clat (usec): min=25, max=242966, avg=35795.55, stdev=25979.45 lat (usec): min=25, max=242968, avg=35798.30, stdev=25980.02 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 137], 20.00th=[ 16909], | 30.00th=[ 21103], 40.00th=[ 25822], 50.00th=[ 30540], 60.00th=[ 36963], | 70.00th=[ 44827], 80.00th=[ 55313], 90.00th=[ 69731], 95.00th=[ 81265], | 99.00th=[112722], 99.50th=[147850], 99.90th=[204473], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 135, per=25.29%, avg=52.86, stdev=21.14, samples=224 iops : min= 1, max= 33, avg=12.56, stdev= 5.31, samples=224 write: IOPS=13, BW=54.7KiB/s (56.0kB/s)(6236KiB/113971msec); 0 zone resets clat (usec): min=1060, max=824164, avg=38114.01, stdev=41876.28 lat (usec): min=1061, max=824164, avg=38118.22, stdev=41877.31 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1303], 10.00th=[ 1795], 20.00th=[ 4752], | 30.00th=[ 9896], 40.00th=[ 20055], 50.00th=[ 28967], 60.00th=[ 37487], | 70.00th=[ 49021], 80.00th=[ 64750], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[160433], 99.50th=[179307], 99.90th=[325059], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 127, per=24.85%, avg=54.42, stdev=20.59, samples=224 iops : min= 1, max= 31, avg=12.95, stdev= 5.16, samples=224 lat (usec) : 50=1.17%, 100=3.55%, 250=0.49%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.83%, 4=3.12%, 10=6.84%, 20=12.27%, 50=39.65% lat (msec) : 100=22.95%, 250=3.81%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.99%, ctx=6666, 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=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=210KiB/s (215kB/s), 51.9KiB/s-53.1KiB/s (53.1kB/s-54.4kB/s), io=23.4MiB (24.6MB), run=113401-114488msec WRITE: bw=220KiB/s (225kB/s), 54.7KiB/s-55.5KiB/s (56.0kB/s-56.9kB/s), io=24.6MiB (25.7MB), run=113401-114488msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148771: Thu Apr 23 22:51:41 2026 read: IOPS=5, BW=22.6KiB/s (23.2kB/s)(5992KiB/264543msec) clat (msec): min=5, max=886, avg=36.02, stdev=42.37 lat (msec): min=5, max=886, avg=36.02, stdev=42.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 67], 95.00th=[ 90], | 99.00th=[ 194], 99.50th=[ 262], 99.90th=[ 558], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 88, per=27.41%, avg=24.67, stdev=16.06, samples=469 iops : min= 1, max= 22, avg= 5.55, stdev= 4.06, samples=469 write: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6296KiB/264543msec); 0 zone resets clat (msec): min=32, max=450, avg=133.71, stdev=58.15 lat (msec): min=32, max=450, avg=133.71, stdev=58.15 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 124], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 209], 95.00th=[ 243], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 401], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 56, per=24.57%, avg=23.34, stdev= 9.66, samples=519 iops : min= 1, max= 14, avg= 5.21, stdev= 2.48, samples=519 lat (msec) : 10=2.44%, 20=13.93%, 50=24.84%, 100=22.49%, 250=33.85% lat (msec) : 500=2.38%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.39%, ctx=5561, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148772: Thu Apr 23 22:51:41 2026 read: IOPS=5, BW=22.5KiB/s (23.0kB/s)(5940KiB/264335msec) clat (msec): min=5, max=974, avg=35.00, stdev=38.71 lat (msec): min=5, max=974, avg=35.01, stdev=38.71 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 45], 90.00th=[ 66], 95.00th=[ 89], | 99.00th=[ 161], 99.50th=[ 215], 99.90th=[ 313], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 102, per=27.62%, avg=24.86, stdev=16.13, samples=462 iops : min= 1, max= 25, avg= 5.60, stdev= 4.08, samples=462 write: IOPS=6, BW=24.0KiB/s (24.6kB/s)(6348KiB/264335msec); 0 zone resets clat (msec): min=36, max=444, avg=133.73, stdev=56.55 lat (msec): min=36, max=444, avg=133.73, stdev=56.55 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 209], 95.00th=[ 243], | 99.00th=[ 305], 99.50th=[ 338], 99.90th=[ 435], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 63, per=24.78%, avg=23.54, stdev= 9.65, samples=520 iops : min= 1, max= 15, avg= 5.26, stdev= 2.49, samples=520 lat (msec) : 10=2.86%, 20=13.70%, 50=23.93%, 100=21.97%, 250=35.38% lat (msec) : 500=2.12%, 1000=0.03% cpu : usr=0.03%, sys=1.38%, ctx=5463, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148773: Thu Apr 23 22:51:41 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6028KiB/263440msec) clat (msec): min=5, max=422, avg=36.31, stdev=31.20 lat (msec): min=5, max=422, avg=36.32, stdev=31.20 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 74], 95.00th=[ 96], | 99.00th=[ 155], 99.50th=[ 171], 99.90th=[ 249], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 103, per=27.30%, avg=24.57, stdev=15.89, samples=474 iops : min= 1, max= 25, avg= 5.51, stdev= 4.00, samples=474 write: IOPS=5, BW=23.8KiB/s (24.3kB/s)(6260KiB/263440msec); 0 zone resets clat (msec): min=35, max=1147, avg=133.27, stdev=61.38 lat (msec): min=35, max=1147, avg=133.28, stdev=61.38 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 205], 95.00th=[ 241], | 99.00th=[ 300], 99.50th=[ 330], 99.90th=[ 535], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 56, per=24.56%, avg=23.33, stdev= 9.93, samples=517 iops : min= 1, max= 14, avg= 5.21, stdev= 2.56, samples=517 lat (msec) : 10=3.06%, 20=12.92%, 50=23.67%, 100=23.76%, 250=34.47% lat (msec) : 500=2.05%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.44%, ctx=5569, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148774: Thu Apr 23 22:51:41 2026 read: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6052KiB/262396msec) clat (msec): min=5, max=433, avg=34.84, stdev=32.46 lat (msec): min=5, max=433, avg=34.84, stdev=32.46 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 69], 95.00th=[ 94], | 99.00th=[ 155], 99.50th=[ 211], 99.90th=[ 409], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7, max= 90, per=28.14%, avg=25.33, stdev=16.47, samples=462 iops : min= 1, max= 22, avg= 5.71, stdev= 4.15, samples=462 write: IOPS=5, BW=23.8KiB/s (24.3kB/s)(6236KiB/262396msec); 0 zone resets clat (msec): min=36, max=1145, avg=134.42, stdev=62.99 lat (msec): min=36, max=1145, avg=134.43, stdev=62.99 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 99], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 176], 90.00th=[ 213], 95.00th=[ 249], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 535], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 56, per=24.61%, avg=23.38, stdev= 9.43, samples=514 iops : min= 1, max= 14, avg= 5.22, stdev= 2.42, samples=514 lat (msec) : 10=2.47%, 20=14.36%, 50=24.74%, 100=21.91%, 250=33.89% lat (msec) : 500=2.57%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.39%, ctx=5510, 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=90.8KiB/s (92.9kB/s), 22.5KiB/s-23.1KiB/s (23.0kB/s-23.6kB/s), io=23.4MiB (24.6MB), run=262396-264543msec WRITE: bw=95.0KiB/s (97.3kB/s), 23.8KiB/s-24.0KiB/s (24.3kB/s-24.6kB/s), io=24.6MiB (25.7MB), run=262396-264543msec 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=148830: Thu Apr 23 22:52:15 2026 read: IOPS=13, BW=224KiB/s (229kB/s)(5920KiB/26448msec) clat (usec): min=34, max=208462, avg=33508.78, stdev=29736.92 lat (usec): min=34, max=208465, avg=33509.89, stdev=29736.90 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 91], | 30.00th=[ 17171], 40.00th=[ 24511], 50.00th=[ 30278], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 54789], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[135267], 99.50th=[170918], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 31, max= 537, per=24.98%, avg=224.33, stdev=104.67, samples=52 iops : min= 1, max= 33, avg=13.33, stdev= 6.62, samples=52 write: IOPS=15, BW=241KiB/s (247kB/s)(6368KiB/26448msec); 0 zone resets clat (usec): min=1487, max=272327, avg=34399.00, stdev=39218.91 lat (usec): min=1488, max=272329, avg=34401.08, stdev=39218.97 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1926], 10.00th=[ 2868], 20.00th=[ 5145], | 30.00th=[ 8291], 40.00th=[ 14353], 50.00th=[ 20841], 60.00th=[ 30540], | 70.00th=[ 39584], 80.00th=[ 60031], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[187696], 99.50th=[263193], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 27, max= 480, per=25.50%, avg=241.00, stdev=99.83, samples=52 iops : min= 1, max= 30, avg=14.37, stdev= 6.35, samples=52 lat (usec) : 50=1.30%, 100=8.72%, 250=0.78%, 500=0.26%, 750=0.26% lat (msec) : 2=2.99%, 4=5.60%, 10=10.03%, 20=11.07%, 50=34.64% lat (msec) : 100=20.05%, 250=4.04%, 500=0.26% cpu : usr=0.06%, sys=6.75%, ctx=1560, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148831: Thu Apr 23 22:52:15 2026 read: IOPS=13, BW=215KiB/s (221kB/s)(5744KiB/26661msec) clat (usec): min=37, max=269231, avg=34267.67, stdev=29603.70 lat (usec): min=37, max=269231, avg=34274.89, stdev=29601.47 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 87], | 30.00th=[ 20317], 40.00th=[ 27132], 50.00th=[ 32900], 60.00th=[ 39584], | 70.00th=[ 45351], 80.00th=[ 54789], 90.00th=[ 69731], 95.00th=[ 85459], | 99.00th=[111674], 99.50th=[145753], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 27, max= 507, per=24.37%, avg=218.88, stdev=100.06, samples=51 iops : min= 1, max= 31, avg=12.98, stdev= 6.32, samples=51 write: IOPS=15, BW=245KiB/s (251kB/s)(6544KiB/26661msec); 0 zone resets clat (usec): min=1438, max=265150, avg=34401.02, stdev=37598.04 lat (usec): min=1441, max=265153, avg=34407.75, stdev=37600.64 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1893], 10.00th=[ 2737], 20.00th=[ 4883], | 30.00th=[ 8586], 40.00th=[ 14746], 50.00th=[ 23462], 60.00th=[ 33817], | 70.00th=[ 41681], 80.00th=[ 57934], 90.00th=[ 79168], 95.00th=[100140], | 99.00th=[181404], 99.50th=[225444], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 63, max= 565, per=25.89%, avg=244.65, stdev=105.15, samples=52 iops : min= 3, max= 35, avg=14.62, stdev= 6.69, samples=52 lat (usec) : 50=0.78%, 100=9.38%, 250=0.91%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=3.12%, 4=5.60%, 10=9.24%, 20=8.85%, 50=36.46% lat (msec) : 100=21.74%, 250=3.12%, 500=0.39% cpu : usr=0.07%, sys=6.89%, ctx=1514, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148832: Thu Apr 23 22:52:15 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(6256KiB/25871msec) clat (usec): min=38, max=332823, avg=37624.33, stdev=35236.97 lat (usec): min=38, max=332824, avg=37625.90, stdev=35236.78 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 65], 20.00th=[ 12256], | 30.00th=[ 22938], 40.00th=[ 26608], 50.00th=[ 31065], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 55837], 90.00th=[ 73925], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[283116], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 54, max= 503, per=26.83%, avg=240.94, stdev=95.34, samples=50 iops : min= 3, max= 31, avg=14.40, stdev= 6.01, samples=50 write: IOPS=14, BW=233KiB/s (239kB/s)(6032KiB/25871msec); 0 zone resets clat (usec): min=1423, max=235145, avg=28945.18, stdev=28843.99 lat (usec): min=1425, max=235148, avg=28947.41, stdev=28843.79 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1860], 10.00th=[ 2999], 20.00th=[ 5735], | 30.00th=[ 8160], 40.00th=[ 13566], 50.00th=[ 19530], 60.00th=[ 26870], | 70.00th=[ 37487], 80.00th=[ 51119], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[117965], 99.50th=[173016], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 416, per=24.33%, avg=229.90, stdev=93.32, samples=50 iops : min= 1, max= 26, avg=13.66, stdev= 5.88, samples=50 lat (usec) : 50=1.56%, 100=5.73%, 250=1.17%, 500=0.52%, 750=0.26% lat (msec) : 2=2.99%, 4=3.91%, 10=10.03%, 20=11.85%, 50=38.41% lat (msec) : 100=20.31%, 250=2.99%, 500=0.26% cpu : usr=0.07%, sys=6.81%, ctx=1572, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148833: Thu Apr 23 22:52:15 2026 read: IOPS=15, BW=246KiB/s (252kB/s)(6032KiB/24507msec) clat (usec): min=40, max=289943, avg=34949.37, stdev=30738.16 lat (usec): min=40, max=289943, avg=34950.48, stdev=30738.16 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 11600], | 30.00th=[ 20841], 40.00th=[ 26346], 50.00th=[ 31589], 60.00th=[ 38536], | 70.00th=[ 44827], 80.00th=[ 52167], 90.00th=[ 66847], 95.00th=[ 78119], | 99.00th=[125305], 99.50th=[270533], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 415, per=27.14%, avg=243.75, stdev=86.90, samples=48 iops : min= 1, max= 25, avg=14.54, stdev= 5.52, samples=48 write: IOPS=15, BW=255KiB/s (261kB/s)(6256KiB/24507msec); 0 zone resets clat (usec): min=1442, max=242640, avg=28724.84, stdev=33717.99 lat (usec): min=1443, max=242642, avg=28726.92, stdev=33718.00 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1844], 10.00th=[ 2704], 20.00th=[ 4555], | 30.00th=[ 6980], 40.00th=[ 10421], 50.00th=[ 16057], 60.00th=[ 25297], | 70.00th=[ 34341], 80.00th=[ 49021], 90.00th=[ 72877], 95.00th=[ 85459], | 99.00th=[202376], 99.50th=[225444], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 63, max= 447, per=26.96%, avg=254.77, stdev=93.89, samples=48 iops : min= 3, max= 27, avg=15.21, stdev= 5.96, samples=48 lat (usec) : 50=0.78%, 100=7.16%, 250=1.17%, 500=0.26%, 750=0.13% lat (msec) : 2=3.26%, 4=5.47%, 10=11.33%, 20=13.02%, 50=35.94% lat (msec) : 100=19.27%, 250=1.95%, 500=0.26% cpu : usr=0.08%, sys=7.17%, ctx=1552, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=898KiB/s (920kB/s), 215KiB/s-246KiB/s (221kB/s-252kB/s), io=23.4MiB (24.5MB), run=24507-26661msec WRITE: bw=945KiB/s (968kB/s), 233KiB/s-255KiB/s (239kB/s-261kB/s), io=24.6MiB (25.8MB), run=24507-26661msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148826: Thu Apr 23 22:52:55 2026 read: IOPS=5, BW=88.0KiB/s (91.1kB/s)(5920KiB/66554msec) clat (msec): min=6, max=471, avg=34.31, stdev=38.50 lat (msec): min=6, max=471, avg=34.32, stdev=38.50 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 161], 99.50th=[ 313], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 31, max= 320, per=27.70%, avg=98.62, stdev=60.46, samples=117 iops : min= 1, max= 20, avg= 5.44, stdev= 3.84, samples=117 write: IOPS=5, BW=95.7KiB/s (97.0kB/s)(6368KiB/66554msec); 0 zone resets clat (msec): min=38, max=448, avg=135.06, stdev=58.54 lat (msec): min=38, max=448, avg=135.06, stdev=58.54 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 92], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 120], 60.00th=[ 133], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 218], 95.00th=[ 259], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 30, max= 160, per=25.56%, avg=95.85, stdev=38.72, samples=130 iops : min= 1, max= 10, avg= 5.25, stdev= 2.52, samples=130 lat (msec) : 10=1.30%, 20=17.71%, 50=21.35%, 100=20.70%, 250=35.68% lat (msec) : 500=3.26% cpu : usr=0.04%, sys=1.42%, ctx=1352, 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=148827: Thu Apr 23 22:52:55 2026 read: IOPS=5, BW=85.5KiB/s (87.6kB/s)(5744KiB/67165msec) clat (msec): min=7, max=293, avg=33.09, stdev=31.73 lat (msec): min=7, max=293, avg=33.10, stdev=31.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 78], 95.00th=[ 95], | 99.00th=[ 155], 99.50th=[ 201], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 27, max= 319, per=27.24%, avg=96.97, stdev=65.17, samples=117 iops : min= 1, max= 19, avg= 5.33, stdev= 4.14, samples=117 write: IOPS=6, BW=97.4KiB/s (99.8kB/s)(6544KiB/67165msec); 0 zone resets clat (msec): min=40, max=425, avg=134.62, stdev=58.06 lat (msec): min=40, max=425, avg=134.62, stdev=58.06 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 110], 50.00th=[ 122], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 220], 95.00th=[ 253], | 99.00th=[ 313], 99.50th=[ 351], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 160, per=26.06%, avg=97.74, stdev=38.23, samples=132 iops : min= 1, max= 10, avg= 5.37, stdev= 2.47, samples=132 lat (msec) : 10=1.17%, 20=18.62%, 50=19.66%, 100=20.83%, 250=36.85% lat (msec) : 500=2.86% cpu : usr=0.04%, sys=1.44%, ctx=1300, 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=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=148828: Thu Apr 23 22:52:55 2026 read: IOPS=6, BW=98.4KiB/s (101kB/s)(6256KiB/63547msec) clat (msec): min=7, max=196, avg=34.33, stdev=29.62 lat (msec): min=7, max=196, avg=34.33, stdev=29.62 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 71], 95.00th=[ 100], | 99.00th=[ 161], 99.50th=[ 192], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 30, max= 409, per=29.72%, avg=105.79, stdev=76.39, samples=117 iops : min= 1, max= 25, avg= 5.90, stdev= 4.86, samples=117 write: IOPS=5, BW=94.9KiB/s (97.2kB/s)(6032KiB/63547msec); 0 zone resets clat (msec): min=36, max=449, avg=132.05, stdev=55.96 lat (msec): min=36, max=449, avg=132.05, stdev=55.96 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 101], 40.00th=[ 107], 50.00th=[ 122], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 243], | 99.00th=[ 313], 99.50th=[ 409], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 27, max= 160, per=25.36%, avg=95.10, stdev=36.19, samples=124 iops : min= 1, max= 10, avg= 5.22, stdev= 2.37, samples=124 lat (msec) : 10=1.17%, 20=18.23%, 50=22.14%, 100=21.35%, 250=35.16% lat (msec) : 500=1.95% cpu : usr=0.05%, sys=1.53%, ctx=1436, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148829: Thu Apr 23 22:52:55 2026 read: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6032KiB/66772msec) clat (msec): min=6, max=330, avg=34.57, stdev=33.74 lat (msec): min=6, max=330, avg=34.57, stdev=33.74 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 78], 95.00th=[ 108], | 99.00th=[ 182], 99.50th=[ 215], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 319, per=29.36%, avg=104.51, stdev=67.25, samples=113 iops : min= 1, max= 19, avg= 5.81, stdev= 4.22, samples=113 write: IOPS=5, BW=93.7KiB/s (95.9kB/s)(6256KiB/66772msec); 0 zone resets clat (msec): min=50, max=411, avg=136.54, stdev=58.35 lat (msec): min=50, max=411, avg=136.55, stdev=58.35 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 72], 10.00th=[ 81], 20.00th=[ 92], | 30.00th=[ 102], 40.00th=[ 109], 50.00th=[ 125], 60.00th=[ 138], | 70.00th=[ 150], 80.00th=[ 171], 90.00th=[ 222], 95.00th=[ 247], | 99.00th=[ 388], 99.50th=[ 409], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 27, max= 192, per=25.04%, avg=93.89, stdev=36.76, samples=131 iops : min= 1, max= 12, avg= 5.13, stdev= 2.41, samples=131 lat (msec) : 10=1.56%, 20=17.19%, 50=22.27%, 100=20.18%, 250=36.33% lat (msec) : 500=2.47% cpu : usr=0.03%, sys=1.40%, ctx=1336, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=357KiB/s (365kB/s), 85.5KiB/s-98.4KiB/s (87.6kB/s-101kB/s), io=23.4MiB (24.5MB), run=63547-67165msec WRITE: bw=375KiB/s (384kB/s), 93.7KiB/s-97.4KiB/s (95.9kB/s-99.8kB/s), io=24.6MiB (25.8MB), run=63547-67165msec 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=148850: Thu Apr 23 22:53:14 2026 read: IOPS=1, BW=1153KiB/s (1181kB/s)(7168KiB/6217msec) clat (msec): min=2, max=3480, avg=655.05, stdev=1249.69 lat (msec): min=2, max=3480, avg=655.56, stdev=1249.51 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 116], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 218], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 1954, max= 4087, per=100.00%, avg=2922.67, stdev=1079.88, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=0, BW=824KiB/s (843kB/s)(5120KiB/6217msec); 0 zone resets clat (msec): min=101, max=476, avg=300.18, stdev=146.35 lat (msec): min=103, max=476, avg=300.52, stdev=145.95 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 2039, max= 4023, per=74.49%, avg=2701.67, stdev=1144.31, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 4=8.33%, 250=41.67%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=8.00%, ctx=575, 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=148851: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=259KiB/s (265kB/s)(2048KiB/7904msec) clat (msec): min=5, max=158, avg=82.08, stdev=108.70 lat (msec): min=5, max=158, avg=82.08, stdev=108.70 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 6], | 30.00th=[ 6], 40.00th=[ 6], 50.00th=[ 6], 60.00th=[ 159], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 159], 95.00th=[ 159], | 99.00th=[ 159], 99.50th=[ 159], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 1400, max= 2039, per=66.36%, avg=1719.50, stdev=451.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1296KiB/s (1327kB/s)(10.0MiB/7904msec); 0 zone resets clat (msec): min=131, max=4109, avg=770.95, stdev=1201.87 lat (msec): min=131, max=4109, avg=771.04, stdev=1201.88 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 182], | 30.00th=[ 184], 40.00th=[ 186], 50.00th=[ 305], 60.00th=[ 443], | 70.00th=[ 531], 80.00th=[ 718], 90.00th=[ 927], 95.00th=[ 4111], | 99.00th=[ 4111], 99.50th=[ 4111], 99.90th=[ 4111], 99.95th=[ 4111], | 99.99th=[ 4111] bw ( KiB/s): min= 1988, max= 6059, per=83.52%, avg=3029.17, stdev=1686.24, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 10=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=6.48%, ctx=119, 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=148852: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=887KiB/s (908kB/s)(6144KiB/6927msec) clat (usec): min=535, max=594734, avg=266179.21, stdev=211402.55 lat (usec): min=536, max=594735, avg=266180.42, stdev=211402.55 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[104334], | 30.00th=[104334], 40.00th=[221250], 50.00th=[221250], 60.00th=[283116], | 70.00th=[396362], 80.00th=[396362], 90.00th=[591397], 95.00th=[591397], | 99.00th=[591397], 99.50th=[591397], 99.90th=[591397], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 2007, max= 4079, per=100.00%, avg=3331.33, stdev=1150.09, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=887KiB/s (908kB/s)(6144KiB/6927msec); 0 zone resets clat (msec): min=167, max=3761, avg=864.76, stdev=1423.49 lat (msec): min=167, max=3761, avg=864.90, stdev=1423.48 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 279], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 1954, max= 2756, per=59.27%, avg=2149.60, stdev=340.42, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.04%, sys=5.75%, ctx=232, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148853: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=789KiB/s (808kB/s)(5120KiB/6491msec) clat (usec): min=563, max=254779, avg=127392.13, stdev=118863.99 lat (usec): min=564, max=254780, avg=127393.35, stdev=118863.97 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 3720], 40.00th=[ 3720], 50.00th=[162530], 60.00th=[162530], | 70.00th=[214959], 80.00th=[214959], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1104KiB/s (1131kB/s)(7168KiB/6491msec); 0 zone resets clat (msec): min=176, max=3736, avg=814.94, stdev=1296.96 lat (msec): min=176, max=3736, avg=815.11, stdev=1296.95 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 243], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 305], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 642], 90.00th=[ 3742], 95.00th=[ 3742], | 99.00th=[ 3742], 99.50th=[ 3742], 99.90th=[ 3742], 99.95th=[ 3742], | 99.99th=[ 3742] bw ( KiB/s): min= 1368, max= 4015, per=73.74%, avg=2674.60, stdev=1207.07, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=6.67%, ctx=112, 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=2591KiB/s (2653kB/s), 259KiB/s-1153KiB/s (265kB/s-1181kB/s), io=20.0MiB (20.0MB), run=6217-7904msec WRITE: bw=3628KiB/s (3715kB/s), 824KiB/s-1296KiB/s (843kB/s-1327kB/s), io=28.0MiB (29.4MB), run=6217-7904msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148855: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=1018KiB/s (1043kB/s)(7168KiB/7040msec) clat (msec): min=107, max=3849, avg=685.52, stdev=1395.58 lat (msec): min=107, max=3849, avg=685.52, stdev=1395.58 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 128], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 161], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 230], 90.00th=[ 3842], 95.00th=[ 3842], | 99.00th=[ 3842], 99.50th=[ 3842], 99.90th=[ 3842], 99.95th=[ 3842], | 99.99th=[ 3842] bw ( KiB/s): min= 1475, max= 4063, per=100.00%, avg=2904.00, stdev=1344.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=727KiB/s (745kB/s)(5120KiB/7040msec); 0 zone resets clat (msec): min=327, max=572, avg=428.07, stdev=121.46 lat (msec): min=327, max=573, avg=428.15, stdev=121.46 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1818, max= 4079, per=70.16%, avg=2629.67, stdev=1258.17, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.69%, ctx=98, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148856: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=268KiB/s (274kB/s)(2048KiB/7649msec) clat (msec): min=131, max=180, avg=156.47, stdev=34.62 lat (msec): min=131, max=180, avg=156.47, stdev=34.62 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 182], | 70.00th=[ 182], 80.00th=[ 182], 90.00th=[ 182], 95.00th=[ 182], | 99.00th=[ 182], 99.50th=[ 182], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 2007, max= 2048, per=75.74%, avg=2027.50, stdev=28.99, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1339KiB/s (1371kB/s)(10.0MiB/7649msec); 0 zone resets clat (msec): min=197, max=3286, avg=723.45, stdev=1005.45 lat (msec): min=197, max=3286, avg=723.64, stdev=1005.50 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 228], | 30.00th=[ 241], 40.00th=[ 243], 50.00th=[ 257], 60.00th=[ 326], | 70.00th=[ 342], 80.00th=[ 426], 90.00th=[ 1687], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 1996, max= 4096, per=81.53%, avg=3055.67, stdev=1133.56, samples=6 iops : min= 1, max= 4, avg= 2.50, stdev= 1.38, samples=6 lat (msec) : 250=50.00%, 500=33.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.05%, sys=3.29%, ctx=81, 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=148857: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=845KiB/s (866kB/s)(6144KiB/7267msec) clat (msec): min=96, max=586, avg=214.31, stdev=185.24 lat (msec): min=96, max=586, avg=214.31, stdev=185.24 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 123], | 30.00th=[ 123], 40.00th=[ 133], 50.00th=[ 133], 60.00th=[ 159], | 70.00th=[ 190], 80.00th=[ 190], 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= 2048, max= 4096, per=100.00%, avg=3383.67, stdev=1157.58, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 write: IOPS=0, BW=845KiB/s (866kB/s)(6144KiB/7267msec); 0 zone resets clat (msec): min=239, max=3969, avg=981.79, stdev=1471.48 lat (msec): min=239, max=3969, avg=981.91, stdev=1471.45 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 443], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 1835, max= 2048, per=53.00%, avg=1986.40, stdev=86.87, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=2.12%, ctx=63, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=148858: Thu Apr 23 22:53:14 2026 read: IOPS=0, BW=689KiB/s (705kB/s)(5120KiB/7432msec) clat (msec): min=114, max=261, avg=160.09, stdev=62.04 lat (msec): min=114, max=261, avg=160.09, stdev=62.04 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 126], 60.00th=[ 126], | 70.00th=[ 180], 80.00th=[ 180], 90.00th=[ 262], 95.00th=[ 262], | 99.00th=[ 262], 99.50th=[ 262], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 3992, max= 4096, per=100.00%, avg=4044.00, stdev=73.54, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=0, BW=964KiB/s (988kB/s)(7168KiB/7432msec); 0 zone resets clat (msec): min=153, max=4004, avg=927.43, stdev=1391.13 lat (msec): min=153, max=4004, avg=927.53, stdev=1391.13 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 239], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 363], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 1083], 90.00th=[ 4010], 95.00th=[ 4010], | 99.00th=[ 4010], 99.50th=[ 4010], 99.90th=[ 4010], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 1738, max= 4096, per=62.35%, avg=2336.80, stdev=990.24, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 lat (msec) : 250=58.33%, 500=25.00%, 2000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=1.84%, ctx=59, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2677KiB/s (2742kB/s), 268KiB/s-1018KiB/s (274kB/s-1043kB/s), io=20.0MiB (20.0MB), run=7040-7649msec WRITE: bw=3748KiB/s (3838kB/s), 727KiB/s-1339KiB/s (745kB/s-1371kB/s), io=28.0MiB (29.4MB), run=7040-7649msec 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=148866: Thu Apr 23 22:53:29 2026 read: IOPS=0, BW=3572KiB/s (3658kB/s)(12.0MiB/3440msec) clat (msec): min=443, max=1592, avg=1100.79, stdev=592.30 lat (msec): min=443, max=1592, avg=1100.79, stdev=592.30 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.17%, ctx=75, 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=148867: Thu Apr 23 22:53:29 2026 read: IOPS=0, BW=1011KiB/s (1035kB/s)(4096KiB/4052msec) clat (nsec): min=1189.9M, max=1189.9M, avg=1189864056.00, stdev= 0.00 lat (nsec): min=1189.9M, max=1189.9M, avg=1189866613.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1183], 5.00th=[ 1183], 10.00th=[ 1183], 20.00th=[ 1183], | 30.00th=[ 1183], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2022KiB/s (2070kB/s)(8192KiB/4052msec); 0 zone resets clat (msec): min=1059, max=1682, avg=1371.35, stdev=440.68 lat (msec): min=1060, max=1683, avg=1371.69, stdev=440.57 clat percentiles (msec): | 1.00th=[ 1062], 5.00th=[ 1062], 10.00th=[ 1062], 20.00th=[ 1062], | 30.00th=[ 1062], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1687], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.10%, sys=2.57%, ctx=41, 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=148868: Thu Apr 23 22:53:29 2026 write: IOPS=0, BW=3857KiB/s (3949kB/s)(12.0MiB/3186msec); 0 zone resets clat (msec): min=870, max=1214, avg=1038.03, stdev=172.20 lat (msec): min=870, max=1214, avg=1038.30, stdev=172.26 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 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= 7892, max= 8192, per=99.46%, avg=8042.00, stdev=212.13, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.59%, ctx=61, 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=148869: Thu Apr 23 22:53:29 2026 write: IOPS=1, BW=4865KiB/s (4981kB/s)(12.0MiB/2526msec); 0 zone resets clat (msec): min=378, max=1529, avg=784.72, stdev=646.17 lat (msec): min=381, max=1530, avg=786.50, stdev=644.85 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min=15784, max=15784, per=100.00%, avg=15784.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.60%, ctx=59, 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=4043KiB/s (4140kB/s), 1011KiB/s-3572KiB/s (1035kB/s-3658kB/s), io=16.0MiB (16.8MB), run=3440-4052msec WRITE: bw=8087KiB/s (8281kB/s), 2022KiB/s-4865KiB/s (2070kB/s-4981kB/s), io=32.0MiB (33.6MB), run=2526-4052msec rand-rw: (groupid=0, jobs=1): err= 0: pid=148871: Thu Apr 23 22:53:29 2026 read: IOPS=1, BW=4544KiB/s (4653kB/s)(12.0MiB/2704msec) clat (msec): min=818, max=938, avg=890.17, stdev=62.97 lat (msec): min=818, max=938, avg=890.17, stdev=62.97 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 936], 80.00th=[ 936], 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= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=12.99%, ctx=248, 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=148872: Thu Apr 23 22:53:29 2026 read: IOPS=0, BW=1413KiB/s (1447kB/s)(4096KiB/2898msec) clat (nsec): min=630594k, max=630594k, avg=630593955.00, stdev= 0.00 lat (nsec): min=630597k, max=630597k, avg=630596555.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2827KiB/s (2895kB/s)(8192KiB/2898msec); 0 zone resets clat (msec): min=733, max=1391, avg=1062.57, stdev=465.31 lat (msec): min=734, max=1394, avg=1064.22, stdev=466.78 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 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= 8031, max= 8031, per=89.73%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.90%, ctx=82, 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=148873: Thu Apr 23 22:53:29 2026 write: IOPS=0, BW=3356KiB/s (3437kB/s)(12.0MiB/3661msec); 0 zone resets clat (msec): min=443, max=1748, avg=1202.10, stdev=678.08 lat (msec): min=443, max=1748, avg=1202.54, stdev=678.16 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8143, max= 8143, per=90.98%, 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%, 2000=66.67% cpu : usr=0.03%, sys=3.33%, ctx=42, 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=148874: Thu Apr 23 22:53:29 2026 write: IOPS=1, BW=4880KiB/s (4997kB/s)(12.0MiB/2518msec); 0 zone resets clat (msec): min=450, max=1454, avg=819.58, stdev=552.13 lat (msec): min=450, max=1454, avg=820.39, stdev=551.73 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 6501, max= 8143, per=81.81%, avg=7322.00, stdev=1161.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.04%, sys=5.88%, ctx=44, 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=5654KiB/s (5789kB/s), 1413KiB/s-4544KiB/s (1447kB/s-4653kB/s), io=16.0MiB (16.8MB), run=2704-2898msec WRITE: bw=8951KiB/s (9165kB/s), 2827KiB/s-4880KiB/s (2895kB/s-4997kB/s), io=32.0MiB (33.6MB), run=2518-3661msec