== sanity test 398b: DIO and buffer IO race ============== 03:48:06 (1771404486) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.72983 s, 18.4 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=182435: Wed Feb 18 03:49:05 2026 read: IOPS=30, BW=121KiB/s (124kB/s)(5992KiB/49321msec) clat (usec): min=385, max=726194, avg=18006.49, stdev=20041.07 lat (usec): min=385, max=726196, avg=18009.24, stdev=20040.44 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 7701], 10.00th=[ 8848], 20.00th=[ 10814], | 30.00th=[ 12518], 40.00th=[ 14222], 50.00th=[ 16057], 60.00th=[ 18220], | 70.00th=[ 20841], 80.00th=[ 23725], 90.00th=[ 27919], 95.00th=[ 32113], | 99.00th=[ 45876], 99.50th=[ 47973], 99.90th=[ 55837], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 14, max= 183, per=24.95%, avg=121.27, stdev=26.82, samples=98 iops : min= 3, max= 45, avg=29.99, stdev= 6.75, samples=98 write: IOPS=31, BW=128KiB/s (131kB/s)(6296KiB/49321msec); 0 zone resets clat (usec): min=920, max=80858, avg=14034.70, stdev=10349.76 lat (usec): min=922, max=80859, avg=14037.06, stdev=10349.52 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 2573], 10.00th=[ 3097], 20.00th=[ 3884], | 30.00th=[ 6980], 40.00th=[ 9765], 50.00th=[12125], 60.00th=[14484], | 70.00th=[17695], 80.00th=[22414], 90.00th=[27657], 95.00th=[33162], | 99.00th=[44303], 99.50th=[54789], 99.90th=[67634], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 39, max= 192, per=25.29%, avg=128.71, stdev=30.57, samples=97 iops : min= 9, max= 48, avg=31.86, stdev= 7.65, samples=97 lat (usec) : 500=0.13%, 750=0.62%, 1000=0.23% lat (msec) : 2=1.01%, 4=9.38%, 10=17.35%, 20=42.09%, 50=28.71% lat (msec) : 100=0.46%, 750=0.03% cpu : usr=0.11%, sys=23.40%, ctx=9630, 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=182436: Wed Feb 18 03:49:05 2026 read: IOPS=30, BW=121KiB/s (124kB/s)(5940KiB/49039msec) clat (usec): min=310, max=66773, avg=17727.11, stdev=8769.36 lat (usec): min=311, max=66775, avg=17727.78, stdev=8769.34 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 7767], 10.00th=[ 9110], 20.00th=[10683], | 30.00th=[12518], 40.00th=[14091], 50.00th=[16057], 60.00th=[18482], | 70.00th=[20579], 80.00th=[23462], 90.00th=[28181], 95.00th=[33162], | 99.00th=[49546], 99.50th=[58983], 99.90th=[65274], 99.95th=[66847], | 99.99th=[66847] bw ( KiB/s): min= 7, max= 176, per=24.89%, avg=120.95, stdev=29.18, samples=97 iops : min= 1, max= 44, avg=29.91, stdev= 7.32, samples=97 write: IOPS=32, BW=129KiB/s (133kB/s)(6348KiB/49039msec); 0 zone resets clat (usec): min=891, max=732359, avg=14142.70, stdev=20793.69 lat (usec): min=893, max=732360, avg=14143.76, stdev=20793.67 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 2474], 10.00th=[ 2966], 20.00th=[ 3884], | 30.00th=[ 6652], 40.00th=[ 9503], 50.00th=[ 11469], 60.00th=[ 13829], | 70.00th=[ 17171], 80.00th=[ 21365], 90.00th=[ 27919], 95.00th=[ 33424], | 99.00th=[ 47973], 99.50th=[ 53740], 99.90th=[ 76022], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 223, per=25.30%, avg=128.77, stdev=32.83, samples=97 iops : min= 1, max= 55, avg=31.87, stdev= 8.22, samples=97 lat (usec) : 500=0.26%, 750=0.39%, 1000=0.13% lat (msec) : 2=1.37%, 4=9.28%, 10=17.42%, 20=43.88%, 50=26.43% lat (msec) : 100=0.81%, 750=0.03% cpu : usr=0.12%, sys=23.35%, ctx=9585, 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=182437: Wed Feb 18 03:49:05 2026 read: IOPS=30, BW=123KiB/s (126kB/s)(6028KiB/48957msec) clat (usec): min=149, max=740018, avg=17972.82, stdev=20518.82 lat (usec): min=149, max=740019, avg=17973.80, stdev=20518.74 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 7767], 10.00th=[ 9110], 20.00th=[ 10945], | 30.00th=[ 12518], 40.00th=[ 14091], 50.00th=[ 15926], 60.00th=[ 17957], | 70.00th=[ 20317], 80.00th=[ 22938], 90.00th=[ 27657], 95.00th=[ 33424], | 99.00th=[ 49546], 99.50th=[ 55313], 99.90th=[ 76022], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 31, max= 192, per=25.56%, avg=124.23, stdev=25.87, samples=96 iops : min= 7, max= 48, avg=30.73, stdev= 6.52, samples=96 write: IOPS=31, BW=128KiB/s (131kB/s)(6260KiB/48957msec); 0 zone resets clat (usec): min=758, max=67575, avg=13812.82, stdev=10267.84 lat (usec): min=759, max=67575, avg=13813.66, stdev=10267.82 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 2474], 10.00th=[ 2999], 20.00th=[ 3752], | 30.00th=[ 5932], 40.00th=[ 9503], 50.00th=[11863], 60.00th=[14353], | 70.00th=[17695], 80.00th=[21890], 90.00th=[27919], 95.00th=[33817], | 99.00th=[43779], 99.50th=[48497], 99.90th=[65799], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 7, max= 207, per=25.05%, avg=127.52, stdev=35.21, samples=97 iops : min= 1, max= 51, avg=31.56, stdev= 8.78, samples=97 lat (usec) : 250=0.13%, 500=0.36%, 750=0.55%, 1000=0.13% lat (msec) : 2=1.14%, 4=9.67%, 10=16.54%, 20=43.49%, 50=27.41% lat (msec) : 100=0.55%, 750=0.03% cpu : usr=0.12%, sys=23.35%, ctx=9608, 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=182438: Wed Feb 18 03:49:05 2026 read: IOPS=30, BW=124KiB/s (127kB/s)(6052KiB/48898msec) clat (usec): min=202, max=77932, avg=17415.28, stdev=8529.58 lat (usec): min=202, max=77932, avg=17416.86, stdev=8529.82 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 7767], 10.00th=[ 8979], 20.00th=[10552], | 30.00th=[11994], 40.00th=[14091], 50.00th=[16319], 60.00th=[18220], | 70.00th=[20317], 80.00th=[23200], 90.00th=[27395], 95.00th=[32900], | 99.00th=[44303], 99.50th=[49021], 99.90th=[67634], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 72, max= 176, per=25.97%, avg=126.21, stdev=26.52, samples=95 iops : min= 18, max= 44, avg=31.23, stdev= 6.61, samples=95 write: IOPS=31, BW=128KiB/s (131kB/s)(6236KiB/48898msec); 0 zone resets clat (usec): min=885, max=755764, avg=14292.91, stdev=21455.62 lat (usec): min=886, max=755768, avg=14293.74, stdev=21455.69 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2474], 10.00th=[ 2999], 20.00th=[ 3720], | 30.00th=[ 6063], 40.00th=[ 9503], 50.00th=[ 11863], 60.00th=[ 14353], | 70.00th=[ 17695], 80.00th=[ 22414], 90.00th=[ 28443], 95.00th=[ 32637], | 99.00th=[ 45876], 99.50th=[ 52691], 99.90th=[ 66847], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 23, max= 208, per=25.25%, avg=128.53, stdev=32.19, samples=96 iops : min= 5, max= 52, avg=31.81, stdev= 8.08, samples=96 lat (usec) : 250=0.07%, 500=0.33%, 750=0.59%, 1000=0.10% lat (msec) : 2=1.56%, 4=10.03%, 10=16.70%, 20=42.71%, 50=27.38% lat (msec) : 100=0.52%, 1000=0.03% cpu : usr=0.14%, sys=23.40%, ctx=9669, 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=487KiB/s (499kB/s), 121KiB/s-124KiB/s (124kB/s-127kB/s), io=23.4MiB (24.6MB), run=48898-49321msec WRITE: bw=510KiB/s (522kB/s), 128KiB/s-129KiB/s (131kB/s-133kB/s), io=24.6MiB (25.7MB), run=48898-49321msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182439: Wed Feb 18 03:49:14 2026 read: IOPS=25, BW=103KiB/s (106kB/s)(5992KiB/57971msec) clat (msec): min=3, max=738, avg=16.32, stdev=21.84 lat (msec): min=3, max=738, avg=16.32, stdev=21.85 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 41], | 99.00th=[ 56], 99.50th=[ 62], 99.90th=[ 80], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 32, max= 280, per=25.07%, avg=103.77, stdev=57.61, samples=114 iops : min= 8, max= 70, avg=25.62, stdev=14.45, samples=114 write: IOPS=27, BW=109KiB/s (111kB/s)(6296KiB/57971msec); 0 zone resets clat (usec): min=4557, max=95189, avg=21143.78, stdev=13120.30 lat (usec): min=4558, max=95191, avg=21144.84, stdev=13120.29 clat percentiles (usec): | 1.00th=[ 5932], 5.00th=[ 7177], 10.00th=[ 8094], 20.00th=[10028], | 30.00th=[11994], 40.00th=[14353], 50.00th=[17171], 60.00th=[21365], | 70.00th=[25560], 80.00th=[31327], 90.00th=[40109], 95.00th=[45351], | 99.00th=[64750], 99.50th=[72877], 99.90th=[90702], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 16, max= 344, per=25.17%, avg=108.96, stdev=58.91, samples=114 iops : min= 4, max= 86, avg=26.92, stdev=14.80, samples=114 lat (msec) : 4=0.36%, 10=27.90%, 20=37.37%, 50=32.06%, 100=2.28% lat (msec) : 750=0.03% cpu : usr=0.10%, sys=12.57%, ctx=6251, 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=182440: Wed Feb 18 03:49:14 2026 read: IOPS=25, BW=103KiB/s (105kB/s)(5940KiB/57762msec) clat (msec): min=2, max=750, avg=16.49, stdev=22.49 lat (msec): min=2, max=750, avg=16.49, stdev=22.49 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 42], | 99.00th=[ 60], 99.50th=[ 67], 99.90th=[ 93], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8, max= 352, per=25.01%, avg=103.56, stdev=60.18, samples=114 iops : min= 2, max= 88, avg=25.57, stdev=15.09, samples=114 write: IOPS=27, BW=110KiB/s (113kB/s)(6348KiB/57762msec); 0 zone resets clat (usec): min=5031, max=89544, avg=20819.40, stdev=12775.35 lat (usec): min=5032, max=89545, avg=20820.41, stdev=12775.30 clat percentiles (usec): | 1.00th=[ 5866], 5.00th=[ 7177], 10.00th=[ 8094], 20.00th=[10028], | 30.00th=[12125], 40.00th=[14484], 50.00th=[16909], 60.00th=[21103], | 70.00th=[25297], 80.00th=[30278], 90.00th=[39060], 95.00th=[44827], | 99.00th=[64226], 99.50th=[71828], 99.90th=[86508], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 24, max= 344, per=25.58%, avg=110.78, stdev=60.13, samples=114 iops : min= 6, max= 86, avg=27.38, stdev=15.09, samples=114 lat (msec) : 4=0.36%, 10=28.84%, 20=36.69%, 50=31.67%, 100=2.41% lat (msec) : 1000=0.03% cpu : usr=0.12%, sys=12.52%, ctx=6249, 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=182441: Wed Feb 18 03:49:14 2026 read: IOPS=26, BW=104KiB/s (107kB/s)(6028KiB/57926msec) clat (usec): min=3288, max=77905, avg=15962.47, stdev=11408.73 lat (usec): min=3289, max=77906, avg=15963.36, stdev=11408.71 clat percentiles (usec): | 1.00th=[ 4080], 5.00th=[ 5014], 10.00th=[ 5669], 20.00th=[ 6849], | 30.00th=[ 8717], 40.00th=[10421], 50.00th=[12125], 60.00th=[14091], | 70.00th=[17957], 80.00th=[23725], 90.00th=[33817], 95.00th=[39584], | 99.00th=[55313], 99.50th=[60556], 99.90th=[71828], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 24, max= 304, per=25.27%, avg=104.61, stdev=61.04, samples=114 iops : min= 6, max= 76, avg=25.83, stdev=15.31, samples=114 write: IOPS=27, BW=108KiB/s (111kB/s)(6260KiB/57926msec); 0 zone resets clat (msec): min=5, max=756, avg=21.49, stdev=22.62 lat (msec): min=5, max=756, avg=21.49, stdev=22.62 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 32], 90.00th=[ 40], 95.00th=[ 46], | 99.00th=[ 66], 99.50th=[ 72], 99.90th=[ 95], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 32, max= 304, per=25.05%, avg=108.48, stdev=57.86, samples=114 iops : min= 8, max= 76, avg=26.80, stdev=14.53, samples=114 lat (msec) : 4=0.42%, 10=28.35%, 20=36.43%, 50=32.49%, 100=2.28% lat (msec) : 1000=0.03% cpu : usr=0.10%, sys=12.63%, ctx=6179, 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=182442: Wed Feb 18 03:49:14 2026 read: IOPS=26, BW=104KiB/s (107kB/s)(6052KiB/57938msec) clat (usec): min=2939, max=91946, avg=16183.86, stdev=12155.12 lat (usec): min=2940, max=91947, avg=16184.62, stdev=12155.11 clat percentiles (usec): | 1.00th=[ 4080], 5.00th=[ 5145], 10.00th=[ 5735], 20.00th=[ 7046], | 30.00th=[ 8717], 40.00th=[10421], 50.00th=[11994], 60.00th=[14091], | 70.00th=[17695], 80.00th=[23462], 90.00th=[33817], 95.00th=[40109], | 99.00th=[58459], 99.50th=[68682], 99.90th=[83362], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 8, max= 352, per=25.34%, avg=104.89, stdev=59.70, samples=114 iops : min= 2, max= 88, avg=25.90, stdev=14.99, samples=114 write: IOPS=26, BW=108KiB/s (110kB/s)(6236KiB/57938msec); 0 zone resets clat (msec): min=5, max=750, avg=21.31, stdev=22.65 lat (msec): min=5, max=750, avg=21.31, stdev=22.65 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 31], 90.00th=[ 40], 95.00th=[ 47], | 99.00th=[ 66], 99.50th=[ 75], 99.90th=[ 96], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 32, max= 312, per=24.97%, avg=108.12, stdev=58.66, samples=114 iops : min= 8, max= 78, avg=26.71, stdev=14.72, samples=114 lat (msec) : 4=0.39%, 10=28.29%, 20=37.96%, 50=30.37%, 100=2.96% lat (msec) : 1000=0.03% cpu : usr=0.11%, sys=12.58%, ctx=6133, 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=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=414KiB/s (424kB/s), 103KiB/s-104KiB/s (105kB/s-107kB/s), io=23.4MiB (24.6MB), run=57762-57971msec WRITE: bw=434KiB/s (444kB/s), 108KiB/s-110KiB/s (110kB/s-113kB/s), io=24.6MiB (25.7MB), run=57762-57971msec 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=182461: Wed Feb 18 03:49:35 2026 read: IOPS=24, BW=388KiB/s (397kB/s)(5920KiB/15270msec) clat (usec): min=328, max=89096, avg=20715.17, stdev=11625.70 lat (usec): min=330, max=89098, avg=20716.14, stdev=11626.27 clat percentiles (usec): | 1.00th=[ 416], 5.00th=[ 791], 10.00th=[ 9634], 20.00th=[11994], | 30.00th=[14353], 40.00th=[16450], 50.00th=[18482], 60.00th=[21365], | 70.00th=[23987], 80.00th=[28705], 90.00th=[35914], 95.00th=[43779], | 99.00th=[51643], 99.50th=[62653], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 160, max= 606, per=24.93%, avg=386.47, stdev=107.26, samples=30 iops : min= 10, max= 37, avg=23.63, stdev= 6.58, samples=30 write: IOPS=26, BW=417KiB/s (427kB/s)(6368KiB/15270msec); 0 zone resets clat (usec): min=1433, max=79146, avg=18772.54, stdev=12678.48 lat (usec): min=1434, max=79148, avg=18774.17, stdev=12678.52 clat percentiles (usec): | 1.00th=[ 2278], 5.00th=[ 4293], 10.00th=[ 5014], 20.00th=[ 7111], | 30.00th=[10290], 40.00th=[13042], 50.00th=[16057], 60.00th=[20317], | 70.00th=[23725], 80.00th=[27919], 90.00th=[37487], 95.00th=[44303], | 99.00th=[54264], 99.50th=[62653], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 95, max= 634, per=25.67%, avg=418.73, stdev=130.10, samples=30 iops : min= 5, max= 39, avg=25.67, stdev= 8.13, samples=30 lat (usec) : 500=1.04%, 750=1.30%, 1000=0.26% lat (msec) : 2=0.52%, 4=1.43%, 10=16.02%, 20=37.24%, 50=40.62% lat (msec) : 100=1.56% cpu : usr=0.13%, sys=25.48%, ctx=2890, 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=182462: Wed Feb 18 03:49:35 2026 read: IOPS=24, BW=390KiB/s (400kB/s)(5744KiB/14721msec) clat (usec): min=235, max=76089, avg=20614.45, stdev=10478.11 lat (usec): min=236, max=76089, avg=20615.18, stdev=10478.13 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 873], 10.00th=[10159], 20.00th=[12780], | 30.00th=[15008], 40.00th=[17171], 50.00th=[19530], 60.00th=[22152], | 70.00th=[24773], 80.00th=[27919], 90.00th=[32900], 95.00th=[36963], | 99.00th=[60031], 99.50th=[61604], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 190, max= 539, per=25.24%, avg=391.17, stdev=94.02, samples=29 iops : min= 11, max= 33, avg=23.97, stdev= 5.86, samples=29 write: IOPS=27, BW=445KiB/s (455kB/s)(6544KiB/14721msec); 0 zone resets clat (usec): min=1748, max=75432, avg=17669.69, stdev=12510.55 lat (usec): min=1750, max=75434, avg=17671.39, stdev=12510.65 clat percentiles (usec): | 1.00th=[ 2868], 5.00th=[ 4015], 10.00th=[ 4817], 20.00th=[ 6063], | 30.00th=[ 8717], 40.00th=[12518], 50.00th=[15401], 60.00th=[18482], | 70.00th=[21890], 80.00th=[26870], 90.00th=[33817], 95.00th=[41157], | 99.00th=[58983], 99.50th=[70779], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 286, max= 798, per=27.30%, avg=445.28, stdev=104.77, samples=29 iops : min= 17, max= 49, avg=27.34, stdev= 6.48, samples=29 lat (usec) : 250=0.13%, 500=0.91%, 750=1.17%, 1000=0.39% lat (msec) : 2=0.52%, 4=2.34%, 10=16.54%, 20=37.50%, 50=38.41% lat (msec) : 100=2.08% cpu : usr=0.11%, sys=26.96%, ctx=2802, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182464: Wed Feb 18 03:49:35 2026 read: IOPS=25, BW=405KiB/s (415kB/s)(6256KiB/15446msec) clat (usec): min=216, max=93536, avg=21706.37, stdev=12998.36 lat (usec): min=217, max=93537, avg=21707.19, stdev=12998.43 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 627], 10.00th=[ 9634], 20.00th=[12649], | 30.00th=[15008], 40.00th=[17171], 50.00th=[19530], 60.00th=[22152], | 70.00th=[25297], 80.00th=[30278], 90.00th=[37487], 95.00th=[44303], | 99.00th=[64226], 99.50th=[81265], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 128, max= 670, per=26.02%, avg=403.30, stdev=114.81, samples=30 iops : min= 8, max= 41, avg=24.70, stdev= 7.08, samples=30 write: IOPS=24, BW=391KiB/s (400kB/s)(6032KiB/15446msec); 0 zone resets clat (usec): min=2490, max=70250, avg=18365.93, stdev=12920.07 lat (usec): min=2491, max=70252, avg=18372.26, stdev=12933.78 clat percentiles (usec): | 1.00th=[ 2737], 5.00th=[ 4015], 10.00th=[ 4752], 20.00th=[ 6915], | 30.00th=[ 9896], 40.00th=[12649], 50.00th=[16057], 60.00th=[18744], | 70.00th=[22938], 80.00th=[27395], 90.00th=[34866], 95.00th=[45876], | 99.00th=[63701], 99.50th=[67634], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 160, max= 606, per=23.43%, avg=382.13, stdev=112.66, samples=30 iops : min= 10, max= 37, avg=23.37, stdev= 7.04, samples=30 lat (usec) : 250=0.13%, 500=0.39%, 750=2.47%, 1000=0.13% lat (msec) : 2=0.26%, 4=2.21%, 10=15.10%, 20=36.98%, 50=39.32% lat (msec) : 100=2.99% cpu : usr=0.12%, sys=25.09%, ctx=2941, 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=182466: Wed Feb 18 03:49:35 2026 read: IOPS=24, BW=398KiB/s (407kB/s)(6032KiB/15161msec) clat (usec): min=228, max=68547, avg=21432.94, stdev=11474.48 lat (usec): min=229, max=68548, avg=21433.77, stdev=11474.55 clat percentiles (usec): | 1.00th=[ 404], 5.00th=[ 660], 10.00th=[ 9634], 20.00th=[12780], | 30.00th=[15270], 40.00th=[17171], 50.00th=[19530], 60.00th=[22676], | 70.00th=[26870], 80.00th=[30540], 90.00th=[34866], 95.00th=[40633], | 99.00th=[57934], 99.50th=[65799], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 158, max= 542, per=25.52%, avg=395.53, stdev=92.86, samples=30 iops : min= 9, max= 33, avg=24.20, stdev= 5.80, samples=30 write: IOPS=25, BW=413KiB/s (423kB/s)(6256KiB/15161msec); 0 zone resets clat (usec): min=1435, max=63911, avg=17873.52, stdev=13185.29 lat (usec): min=1437, max=63912, avg=17875.12, stdev=13185.32 clat percentiles (usec): | 1.00th=[ 2442], 5.00th=[ 3884], 10.00th=[ 4555], 20.00th=[ 5473], | 30.00th=[ 8356], 40.00th=[11863], 50.00th=[14615], 60.00th=[18220], | 70.00th=[22676], 80.00th=[27395], 90.00th=[36439], 95.00th=[44827], | 99.00th=[58983], 99.50th=[62129], 99.90th=[63701], 99.95th=[63701], | 99.99th=[63701] bw ( KiB/s): min= 160, max= 672, per=25.33%, avg=413.07, stdev=133.33, samples=30 iops : min= 10, max= 42, avg=25.30, stdev= 8.44, samples=30 lat (usec) : 250=0.13%, 500=0.91%, 750=1.56%, 1000=0.39% lat (msec) : 2=0.65%, 4=2.21%, 10=17.71%, 20=35.03%, 50=38.80% lat (msec) : 100=2.60% cpu : usr=0.09%, sys=25.53%, ctx=2959, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1551KiB/s (1588kB/s), 388KiB/s-405KiB/s (397kB/s-415kB/s), io=23.4MiB (24.5MB), run=14721-15446msec WRITE: bw=1631KiB/s (1671kB/s), 391KiB/s-445KiB/s (400kB/s-455kB/s), io=24.6MiB (25.8MB), run=14721-15446msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182463: Wed Feb 18 03:49:38 2026 read: IOPS=20, BW=330KiB/s (338kB/s)(5920KiB/17940msec) clat (usec): min=4245, max=87380, avg=20641.51, stdev=13622.02 lat (usec): min=4246, max=87381, avg=20642.42, stdev=13621.99 clat percentiles (usec): | 1.00th=[ 4621], 5.00th=[ 6194], 10.00th=[ 6980], 20.00th=[ 9372], | 30.00th=[11600], 40.00th=[13698], 50.00th=[16188], 60.00th=[19268], | 70.00th=[24249], 80.00th=[31327], 90.00th=[42206], 95.00th=[48497], | 99.00th=[60031], 99.50th=[64750], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 127, max= 704, per=24.34%, avg=322.26, stdev=141.75, samples=35 iops : min= 7, max= 44, avg=19.66, stdev= 9.00, samples=35 write: IOPS=22, BW=355KiB/s (363kB/s)(6368KiB/17940msec); 0 zone resets clat (usec): min=6201, max=88768, avg=25832.00, stdev=15536.02 lat (usec): min=6203, max=88770, avg=25833.81, stdev=15536.08 clat percentiles (usec): | 1.00th=[ 7046], 5.00th=[ 8094], 10.00th=[ 9634], 20.00th=[11994], | 30.00th=[14615], 40.00th=[17433], 50.00th=[21627], 60.00th=[26608], | 70.00th=[31589], 80.00th=[40109], 90.00th=[48497], 95.00th=[55313], | 99.00th=[72877], 99.50th=[77071], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 127, max= 1024, per=25.23%, avg=351.51, stdev=168.51, samples=35 iops : min= 7, max= 64, avg=21.49, stdev=10.65, samples=35 lat (msec) : 10=16.54%, 20=37.50%, 50=40.23%, 100=5.73% cpu : usr=0.10%, sys=12.70%, ctx=1787, 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=182465: Wed Feb 18 03:49:38 2026 read: IOPS=19, BW=319KiB/s (327kB/s)(5744KiB/18012msec) clat (usec): min=4618, max=93522, avg=20416.84, stdev=14214.08 lat (usec): min=4619, max=93523, avg=20419.82, stdev=14215.46 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 6194], 10.00th=[ 7308], 20.00th=[10028], | 30.00th=[11731], 40.00th=[13566], 50.00th=[15664], 60.00th=[17957], | 70.00th=[22152], 80.00th=[29754], 90.00th=[41681], 95.00th=[54264], | 99.00th=[66323], 99.50th=[69731], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 96, max= 832, per=23.70%, avg=313.74, stdev=152.70, samples=35 iops : min= 6, max= 52, avg=19.11, stdev= 9.67, samples=35 write: IOPS=22, BW=363KiB/s (372kB/s)(6544KiB/18012msec); 0 zone resets clat (usec): min=5838, max=86505, avg=25892.97, stdev=16292.23 lat (usec): min=5839, max=86507, avg=25894.77, stdev=16292.30 clat percentiles (usec): | 1.00th=[ 7439], 5.00th=[ 8848], 10.00th=[10290], 20.00th=[12256], | 30.00th=[14091], 40.00th=[16909], 50.00th=[20055], 60.00th=[26084], | 70.00th=[31851], 80.00th=[38536], 90.00th=[49021], 95.00th=[57934], | 99.00th=[78119], 99.50th=[80217], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 192, max= 896, per=25.35%, avg=353.17, stdev=153.97, samples=35 iops : min= 12, max= 56, avg=21.60, stdev= 9.73, samples=35 lat (msec) : 10=13.93%, 20=44.27%, 50=33.98%, 100=7.81% cpu : usr=0.10%, sys=12.80%, ctx=1738, 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=182467: Wed Feb 18 03:49:38 2026 read: IOPS=21, BW=350KiB/s (358kB/s)(6256KiB/17890msec) clat (usec): min=3635, max=81412, avg=20479.93, stdev=13762.04 lat (usec): min=3635, max=81413, avg=20480.88, stdev=13762.07 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 6521], 10.00th=[ 7635], 20.00th=[ 9634], | 30.00th=[11994], 40.00th=[14484], 50.00th=[16188], 60.00th=[18482], | 70.00th=[22152], 80.00th=[28967], 90.00th=[41157], 95.00th=[49546], | 99.00th=[68682], 99.50th=[73925], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 95, max= 864, per=26.23%, avg=347.34, stdev=166.12, samples=35 iops : min= 5, max= 54, avg=21.23, stdev=10.55, samples=35 write: IOPS=21, BW=337KiB/s (345kB/s)(6032KiB/17890msec); 0 zone resets clat (usec): min=6777, max=87061, avg=25960.14, stdev=15313.61 lat (usec): min=6778, max=87063, avg=25962.37, stdev=15313.35 clat percentiles (usec): | 1.00th=[ 7046], 5.00th=[ 8717], 10.00th=[10028], 20.00th=[13042], | 30.00th=[15533], 40.00th=[18482], 50.00th=[21365], 60.00th=[26084], | 70.00th=[30802], 80.00th=[38011], 90.00th=[49021], 95.00th=[58459], | 99.00th=[71828], 99.50th=[73925], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 128, max= 832, per=23.66%, avg=329.63, stdev=148.73, samples=35 iops : min= 8, max= 52, avg=20.11, stdev= 9.39, samples=35 lat (msec) : 4=0.13%, 10=15.36%, 20=39.71%, 50=37.89%, 100=6.90% cpu : usr=0.07%, sys=13.05%, ctx=1765, 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=182468: Wed Feb 18 03:49:38 2026 read: IOPS=20, BW=333KiB/s (341kB/s)(6032KiB/18090msec) clat (usec): min=3647, max=96211, avg=20713.19, stdev=14182.72 lat (usec): min=3649, max=96212, avg=20714.13, stdev=14182.70 clat percentiles (usec): | 1.00th=[ 3949], 5.00th=[ 5997], 10.00th=[ 6980], 20.00th=[ 9765], | 30.00th=[12256], 40.00th=[14222], 50.00th=[16450], 60.00th=[19792], | 70.00th=[22938], 80.00th=[29230], 90.00th=[40633], 95.00th=[47973], | 99.00th=[71828], 99.50th=[83362], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 158, max= 768, per=24.04%, avg=318.23, stdev=141.88, samples=35 iops : min= 9, max= 48, avg=19.40, stdev= 9.02, samples=35 write: IOPS=21, BW=346KiB/s (354kB/s)(6256KiB/18090msec); 0 zone resets clat (usec): min=5067, max=94666, avg=25983.47, stdev=16544.69 lat (usec): min=5069, max=94668, avg=25985.55, stdev=16545.13 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 7898], 10.00th=[ 9765], 20.00th=[11863], | 30.00th=[14615], 40.00th=[16712], 50.00th=[20841], 60.00th=[25822], | 70.00th=[31851], 80.00th=[41157], 90.00th=[49546], 95.00th=[58459], | 99.00th=[78119], 99.50th=[83362], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 127, max= 864, per=24.01%, avg=334.43, stdev=156.49, samples=35 iops : min= 7, max= 54, avg=20.43, stdev= 9.86, samples=35 lat (msec) : 4=0.65%, 10=15.23%, 20=38.93%, 50=37.89%, 100=7.29% cpu : usr=0.07%, sys=12.92%, ctx=1806, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1324KiB/s (1356kB/s), 319KiB/s-350KiB/s (327kB/s-358kB/s), io=23.4MiB (24.5MB), run=17890-18090msec WRITE: bw=1393KiB/s (1426kB/s), 337KiB/s-363KiB/s (345kB/s-372kB/s), io=24.6MiB (25.8MB), run=17890-18090msec 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=182476: Wed Feb 18 03:49:46 2026 read: IOPS=3, BW=3314KiB/s (3393kB/s)(7168KiB/2163msec) clat (msec): min=42, max=270, avg=152.27, stdev=83.30 lat (msec): min=42, max=270, avg=152.27, stdev=83.30 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 84], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 144], 60.00th=[ 159], | 70.00th=[ 159], 80.00th=[ 251], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 1954, max= 5154, per=52.00%, avg=3705.00, stdev=1621.24, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=2, BW=2367KiB/s (2424kB/s)(5120KiB/2163msec); 0 zone resets clat (msec): min=102, max=324, avg=209.28, stdev=89.43 lat (msec): min=102, max=324, avg=209.35, stdev=89.43 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1718, max= 5953, per=32.16%, avg=3208.33, stdev=2379.88, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=58.33%, 500=25.00% cpu : usr=0.00%, sys=16.51%, ctx=114, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182477: Wed Feb 18 03:49:46 2026 read: IOPS=0, BW=730KiB/s (748kB/s)(2048KiB/2805msec) clat (usec): min=37645, max=73810, avg=55727.61, stdev=25572.65 lat (usec): min=37647, max=73810, avg=55729.06, stdev=25571.55 clat percentiles (usec): | 1.00th=[37487], 5.00th=[37487], 10.00th=[37487], 20.00th=[37487], | 30.00th=[37487], 40.00th=[37487], 50.00th=[37487], 60.00th=[73925], | 70.00th=[73925], 80.00th=[73925], 90.00th=[73925], 95.00th=[73925], | 99.00th=[73925], 99.50th=[73925], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 1718, max= 1984, per=25.98%, avg=1851.00, stdev=188.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3651KiB/s (3738kB/s)(10.0MiB/2805msec); 0 zone resets clat (msec): min=61, max=613, avg=268.03, stdev=198.20 lat (msec): min=61, max=613, avg=268.10, stdev=198.20 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 65], | 30.00th=[ 124], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 247], 80.00th=[ 376], 90.00th=[ 592], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1954, max= 6144, per=43.15%, avg=4305.00, stdev=1802.17, samples=4 iops : min= 1, max= 6, avg= 3.75, stdev= 2.22, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=41.67%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=16.98%, ctx=209, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182478: Wed Feb 18 03:49:46 2026 read: IOPS=2, BW=2138KiB/s (2189kB/s)(6144KiB/2874msec) clat (msec): min=49, max=467, avg=172.77, stdev=155.87 lat (msec): min=49, max=467, avg=172.77, stdev=155.87 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 65], | 30.00th=[ 65], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 148], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 4007, max= 5862, per=69.26%, avg=4934.50, stdev=1311.68, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2138KiB/s (2189kB/s)(6144KiB/2874msec); 0 zone resets clat (msec): min=81, max=726, avg=298.29, stdev=221.89 lat (msec): min=81, max=726, avg=298.36, stdev=221.89 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 262], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1954, max= 5154, per=30.38%, avg=3030.67, stdev=1838.92, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=17.68%, ctx=140, 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=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=182480: Wed Feb 18 03:49:46 2026 read: IOPS=1, BW=1906KiB/s (1952kB/s)(5120KiB/2686msec) clat (msec): min=59, max=275, avg=107.98, stdev=94.22 lat (msec): min=59, max=275, avg=107.98, stdev=94.22 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 60], | 30.00th=[ 60], 40.00th=[ 60], 50.00th=[ 67], 60.00th=[ 67], | 70.00th=[ 79], 80.00th=[ 79], 90.00th=[ 275], 95.00th=[ 275], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 2048, max= 5862, per=55.51%, avg=3955.00, stdev=2696.91, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2669KiB/s (2733kB/s)(7168KiB/2686msec); 0 zone resets clat (msec): min=64, max=628, avg=296.74, stdev=221.08 lat (msec): min=64, max=628, avg=296.80, stdev=221.08 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 205], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 584], 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= 1954, max= 6144, per=33.92%, avg=3384.25, stdev=1964.04, samples=4 iops : min= 1, max= 6, avg= 2.75, stdev= 2.36, samples=4 lat (msec) : 100=41.67%, 250=25.00%, 500=16.67%, 750=16.67% cpu : usr=0.00%, sys=20.60%, ctx=237, 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=7126KiB/s (7297kB/s), 730KiB/s-3314KiB/s (748kB/s-3393kB/s), io=20.0MiB (20.0MB), run=2163-2874msec WRITE: bw=9976KiB/s (10.2MB/s), 2138KiB/s-3651KiB/s (2189kB/s-3738kB/s), io=28.0MiB (29.4MB), run=2163-2874msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182481: Wed Feb 18 03:49:46 2026 read: IOPS=3, BW=3243KiB/s (3321kB/s)(7168KiB/2210msec) clat (usec): min=978, max=221547, avg=104466.49, stdev=84289.80 lat (usec): min=980, max=221548, avg=104467.61, stdev=84289.79 clat percentiles (usec): | 1.00th=[ 979], 5.00th=[ 979], 10.00th=[ 979], 20.00th=[ 1237], | 30.00th=[ 88605], 40.00th=[ 88605], 50.00th=[110625], 60.00th=[120062], | 70.00th=[120062], 80.00th=[187696], 90.00th=[221250], 95.00th=[221250], | 99.00th=[221250], 99.50th=[221250], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 2043, max= 5180, per=55.88%, avg=3773.00, stdev=1593.25, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 write: IOPS=2, BW=2317KiB/s (2372kB/s)(5120KiB/2210msec); 0 zone resets clat (msec): min=212, max=400, avg=276.08, stdev=75.34 lat (msec): min=212, max=400, avg=276.13, stdev=75.35 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 2043, max= 4096, per=28.87%, avg=2729.00, stdev=1183.86, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=50.00%, 500=25.00% cpu : usr=0.00%, sys=49.75%, ctx=1067, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182482: Wed Feb 18 03:49:46 2026 read: IOPS=0, BW=687KiB/s (703kB/s)(2048KiB/2982msec) clat (msec): min=99, max=108, avg=104.16, stdev= 5.98 lat (msec): min=99, max=108, avg=104.17, stdev= 5.98 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 109], | 70.00th=[ 109], 80.00th=[ 109], 90.00th=[ 109], 95.00th=[ 109], | 99.00th=[ 109], 99.50th=[ 109], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 1723, max= 2043, per=27.89%, avg=1883.00, stdev=226.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3434KiB/s (3516kB/s)(10.0MiB/2982msec); 0 zone resets clat (msec): min=87, max=553, avg=274.64, stdev=164.85 lat (msec): min=87, max=553, avg=274.70, stdev=164.85 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 104], | 30.00th=[ 138], 40.00th=[ 157], 50.00th=[ 213], 60.00th=[ 271], | 70.00th=[ 326], 80.00th=[ 443], 90.00th=[ 464], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1723, max= 4087, per=25.29%, avg=2390.80, stdev=958.59, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 0.71, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=42.03%, ctx=245, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182483: Wed Feb 18 03:49:46 2026 read: IOPS=2, BW=2421KiB/s (2479kB/s)(6144KiB/2538msec) clat (usec): min=762, max=260164, avg=150867.67, stdev=84554.11 lat (usec): min=763, max=260165, avg=150868.83, stdev=84554.03 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 766], 10.00th=[ 766], 20.00th=[143655], | 30.00th=[143655], 40.00th=[152044], 50.00th=[152044], 60.00th=[166724], | 70.00th=[181404], 80.00th=[181404], 90.00th=[261096], 95.00th=[261096], | 99.00th=[261096], 99.50th=[261096], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 2043, max= 4096, per=50.53%, avg=3411.67, stdev=1185.30, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=2, BW=2421KiB/s (2479kB/s)(6144KiB/2538msec); 0 zone resets clat (msec): min=128, max=394, avg=261.86, stdev=93.16 lat (msec): min=128, max=394, avg=261.91, stdev=93.17 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 284], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 2043, max= 3430, per=25.31%, avg=2392.25, stdev=691.84, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=42.89%, ctx=449, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182484: Wed Feb 18 03:49:46 2026 read: IOPS=1, BW=1688KiB/s (1729kB/s)(5120KiB/3033msec) clat (usec): min=827, max=422241, avg=134342.04, stdev=180837.58 lat (usec): min=828, max=422241, avg=134342.95, stdev=180837.53 clat percentiles (usec): | 1.00th=[ 832], 5.00th=[ 832], 10.00th=[ 832], 20.00th=[ 832], | 30.00th=[ 1004], 40.00th=[ 1004], 50.00th=[ 45876], 60.00th=[ 45876], | 70.00th=[202376], 80.00th=[202376], 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= 2043, max= 6144, per=60.63%, avg=4093.50, stdev=2899.84, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2363KiB/s (2420kB/s)(7168KiB/3033msec); 0 zone resets clat (msec): min=100, max=759, avg=325.89, stdev=242.81 lat (msec): min=100, max=759, avg=325.94, stdev=242.81 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 241], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 542], 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= 2043, max= 4096, per=28.87%, avg=2729.00, stdev=1183.86, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 50=8.33%, 250=41.67%, 500=16.67%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=34.66%, ctx=761, 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=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=6752KiB/s (6914kB/s), 687KiB/s-3243KiB/s (703kB/s-3321kB/s), io=20.0MiB (20.0MB), run=2210-3033msec WRITE: bw=9453KiB/s (9680kB/s), 2317KiB/s-3434KiB/s (2372kB/s-3516kB/s), io=28.0MiB (29.4MB), run=2210-3033msec 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=182494: Wed Feb 18 03:49:54 2026 read: IOPS=2, BW=8563KiB/s (8769kB/s)(12.0MiB/1435msec) clat (msec): min=459, max=469, avg=463.69, stdev= 5.39 lat (msec): min=459, max=469, avg=463.70, stdev= 5.39 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 5910, max= 7907, per=64.18%, avg=6908.50, stdev=1412.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=54.11%, ctx=2766, 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=182495: Wed Feb 18 03:49:54 2026 read: IOPS=0, BW=2691KiB/s (2756kB/s)(4096KiB/1522msec) clat (nsec): min=451421k, max=451421k, avg=451421212.00, stdev= 0.00 lat (nsec): min=451423k, max=451423k, avg=451423089.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 6050, max= 6050, per=56.21%, avg=6050.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5382KiB/s (5512kB/s)(8192KiB/1522msec); 0 zone resets clat (msec): min=323, max=710, avg=517.43, stdev=273.74 lat (msec): min=324, max=711, avg=517.70, stdev=273.74 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 709], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=20.51%, ctx=740, 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=182496: Wed Feb 18 03:49:54 2026 write: IOPS=1, BW=6664KiB/s (6824kB/s)(12.0MiB/1844msec); 0 zone resets clat (msec): min=119, max=1222, avg=602.52, stdev=564.29 lat (msec): min=119, max=1222, avg=602.79, stdev=564.30 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 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= 8192, max= 8192, per=46.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=13.84%, ctx=273, 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=182497: Wed Feb 18 03:49:54 2026 write: IOPS=1, BW=6919KiB/s (7085kB/s)(12.0MiB/1776msec); 0 zone resets clat (msec): min=528, max=692, avg=587.49, stdev=91.06 lat (msec): min=528, max=692, avg=587.71, stdev=91.08 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 5712, max= 7907, per=38.32%, avg=6809.50, stdev=1552.10, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=23.72%, ctx=115, 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 Run status group 0 (all jobs): READ: bw=10.5MiB/s (11.0MB/s), 2691KiB/s-8563KiB/s (2756kB/s-8769kB/s), io=16.0MiB (16.8MB), run=1435-1522msec WRITE: bw=17.4MiB/s (18.2MB/s), 5382KiB/s-6919KiB/s (5512kB/s-7085kB/s), io=32.0MiB (33.6MB), run=1522-1844msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182489: Wed Feb 18 03:49:54 2026 read: IOPS=2, BW=10.0MiB/s (11.5MB/s)(12.0MiB/1092msec) clat (msec): min=158, max=432, avg=309.51, stdev=139.31 lat (msec): min=158, max=432, avg=309.51, stdev=139.31 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7787, max= 8192, per=99.68%, avg=7989.50, stdev=286.38, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=34.56%, ctx=80, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=182490: Wed Feb 18 03:49:54 2026 read: IOPS=0, BW=2004KiB/s (2052kB/s)(4096KiB/2044msec) clat (nsec): min=566161k, max=566161k, avg=566161327.00, stdev= 0.00 lat (nsec): min=566162k, max=566162k, avg=566162110.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 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= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=4008KiB/s (4104kB/s)(8192KiB/2044msec); 0 zone resets clat (msec): min=174, max=1138, avg=656.43, stdev=682.16 lat (msec): min=174, max=1139, avg=656.68, stdev=682.17 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=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8192, max= 8192, per=51.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=19.33%, ctx=110, 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=182491: Wed Feb 18 03:49:54 2026 write: IOPS=1, BW=6478KiB/s (6633kB/s)(12.0MiB/1897msec); 0 zone resets clat (msec): min=244, max=1012, avg=579.21, stdev=393.47 lat (msec): min=244, max=1012, avg=579.49, stdev=393.47 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=21.99%, ctx=88, 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=182492: Wed Feb 18 03:49:54 2026 write: IOPS=1, BW=7128KiB/s (7299kB/s)(12.0MiB/1724msec); 0 zone resets clat (msec): min=134, max=1293, avg=521.98, stdev=668.26 lat (msec): min=134, max=1293, avg=522.22, stdev=668.30 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 138], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min=15814, max=15814, per=98.65%, avg=15814.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=15.84%, ctx=131, 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=8016KiB/s (8208kB/s), 2004KiB/s-10.0MiB/s (2052kB/s-11.5MB/s), io=16.0MiB (16.8MB), run=1092-2044msec WRITE: bw=15.7MiB/s (16.4MB/s), 4008KiB/s-7128KiB/s (4104kB/s-7299kB/s), io=32.0MiB (33.6MB), run=1724-2044msec