== sanity test 398b: DIO and buffer IO race ============== 06:14:19 (1769080459) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.21073 s, 12.0 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=182008: Thu Jan 22 06:15:50 2026 read: IOPS=19, BW=78.9KiB/s (80.8kB/s)(5992KiB/75948msec) clat (usec): min=83, max=735490, avg=28904.55, stdev=25666.37 lat (usec): min=83, max=735493, avg=28907.11, stdev=25665.94 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 8094], 10.00th=[ 11600], 20.00th=[ 15008], | 30.00th=[ 17695], 40.00th=[ 20841], 50.00th=[ 25035], 60.00th=[ 29492], | 70.00th=[ 34341], 80.00th=[ 40109], 90.00th=[ 49546], 95.00th=[ 59507], | 99.00th=[ 94897], 99.50th=[104334], 99.90th=[191890], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 32, max= 128, per=25.32%, avg=78.75, stdev=21.94, samples=149 iops : min= 8, max= 32, avg=19.10, stdev= 5.51, samples=149 write: IOPS=20, BW=82.9KiB/s (84.9kB/s)(6296KiB/75948msec); 0 zone resets clat (usec): min=631, max=149566, avg=20684.31, stdev=20831.55 lat (usec): min=631, max=149567, avg=20688.54, stdev=20832.20 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 1123], 10.00th=[ 1319], 20.00th=[ 2442], | 30.00th=[ 4752], 40.00th=[ 10290], 50.00th=[ 15926], 60.00th=[ 20841], | 70.00th=[ 26346], 80.00th=[ 34866], 90.00th=[ 49021], 95.00th=[ 60031], | 99.00th=[ 94897], 99.50th=[110625], 99.90th=[145753], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 16, max= 182, per=25.48%, avg=82.83, stdev=26.43, samples=149 iops : min= 4, max= 45, avg=20.12, stdev= 6.63, samples=149 lat (usec) : 100=0.07%, 250=1.50%, 500=0.33%, 750=0.16%, 1000=0.88% lat (msec) : 2=7.88%, 4=5.53%, 10=7.39%, 20=24.32%, 50=42.48% lat (msec) : 100=8.69%, 250=0.75%, 750=0.03% cpu : usr=0.08%, sys=8.05%, ctx=6806, 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=182009: Thu Jan 22 06:15:50 2026 read: IOPS=19, BW=79.1KiB/s (81.0kB/s)(5940KiB/75061msec) clat (usec): min=90, max=633232, avg=27795.83, stdev=23140.71 lat (usec): min=90, max=633233, avg=27801.92, stdev=23144.68 clat percentiles (usec): | 1.00th=[ 163], 5.00th=[ 8586], 10.00th=[ 11469], 20.00th=[ 14615], | 30.00th=[ 17433], 40.00th=[ 20317], 50.00th=[ 23987], 60.00th=[ 27657], | 70.00th=[ 32375], 80.00th=[ 38536], 90.00th=[ 47449], 95.00th=[ 56886], | 99.00th=[ 90702], 99.50th=[107480], 99.90th=[183501], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 6, max= 144, per=25.31%, avg=78.72, stdev=25.56, samples=148 iops : min= 1, max= 36, avg=19.09, stdev= 6.42, samples=148 write: IOPS=21, BW=84.6KiB/s (86.6kB/s)(6348KiB/75061msec); 0 zone resets clat (usec): min=626, max=133969, avg=21224.64, stdev=20618.00 lat (usec): min=628, max=133971, avg=21228.62, stdev=20617.95 clat percentiles (usec): | 1.00th=[ 898], 5.00th=[ 1139], 10.00th=[ 1385], 20.00th=[ 2835], | 30.00th=[ 5014], 40.00th=[ 10683], 50.00th=[ 16188], 60.00th=[ 21103], | 70.00th=[ 27919], 80.00th=[ 36963], 90.00th=[ 50594], 95.00th=[ 60031], | 99.00th=[ 87557], 99.50th=[ 98042], 99.90th=[126354], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 23, max= 176, per=25.98%, avg=84.44, stdev=27.44, samples=147 iops : min= 5, max= 44, avg=20.52, stdev= 6.91, samples=147 lat (usec) : 100=0.03%, 250=1.04%, 500=0.33%, 750=0.16%, 1000=0.68% lat (msec) : 2=7.23%, 4=5.44%, 10=8.24%, 20=25.88%, 50=41.50% lat (msec) : 100=8.95%, 250=0.49%, 750=0.03% cpu : usr=0.12%, sys=8.07%, ctx=6883, 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=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=182010: Thu Jan 22 06:15:50 2026 read: IOPS=19, BW=79.2KiB/s (81.1kB/s)(6028KiB/76132msec) clat (usec): min=113, max=169056, avg=27690.87, stdev=17648.11 lat (usec): min=113, max=169057, avg=27696.40, stdev=17659.14 clat percentiles (usec): | 1.00th=[ 145], 5.00th=[ 7963], 10.00th=[ 11076], 20.00th=[ 14615], | 30.00th=[ 17171], 40.00th=[ 20055], 50.00th=[ 24249], 60.00th=[ 28181], | 70.00th=[ 33162], 80.00th=[ 39060], 90.00th=[ 47973], 95.00th=[ 58983], | 99.00th=[ 86508], 99.50th=[108528], 99.90th=[141558], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 31, max= 143, per=25.48%, avg=79.25, stdev=22.59, samples=149 iops : min= 7, max= 35, avg=19.21, stdev= 5.68, samples=149 write: IOPS=20, BW=82.2KiB/s (84.2kB/s)(6260KiB/76132msec); 0 zone resets clat (usec): min=726, max=644941, avg=21924.32, stdev=26619.83 lat (usec): min=727, max=644942, avg=21927.51, stdev=26619.88 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 1156], 10.00th=[ 1369], 20.00th=[ 2507], | 30.00th=[ 5145], 40.00th=[ 10421], 50.00th=[ 15926], 60.00th=[ 21365], | 70.00th=[ 28443], 80.00th=[ 36963], 90.00th=[ 51643], 95.00th=[ 63177], | 99.00th=[ 96994], 99.50th=[107480], 99.90th=[132645], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 15, max= 158, per=25.24%, avg=82.02, stdev=27.16, samples=149 iops : min= 3, max= 39, avg=19.92, stdev= 6.86, samples=149 lat (usec) : 250=1.50%, 500=0.36%, 750=0.16%, 1000=0.49% lat (msec) : 2=7.68%, 4=5.76%, 10=7.81%, 20=24.93%, 50=41.50% lat (msec) : 100=9.08%, 250=0.68%, 750=0.03% cpu : usr=0.08%, sys=7.99%, ctx=6821, 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=182011: Thu Jan 22 06:15:50 2026 read: IOPS=19, BW=78.4KiB/s (80.3kB/s)(6052KiB/77182msec) clat (usec): min=72, max=181079, avg=27902.04, stdev=17993.33 lat (usec): min=72, max=181080, avg=27903.57, stdev=17993.35 clat percentiles (usec): | 1.00th=[ 137], 5.00th=[ 6783], 10.00th=[ 11207], 20.00th=[ 14484], | 30.00th=[ 17695], 40.00th=[ 20841], 50.00th=[ 24773], 60.00th=[ 28967], | 70.00th=[ 33817], 80.00th=[ 39584], 90.00th=[ 47449], 95.00th=[ 56886], | 99.00th=[ 92799], 99.50th=[102237], 99.90th=[177210], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 15, max= 152, per=25.27%, avg=78.59, stdev=23.26, samples=152 iops : min= 3, max= 38, avg=19.06, stdev= 5.86, samples=152 write: IOPS=20, BW=80.8KiB/s (82.7kB/s)(6236KiB/77182msec); 0 zone resets clat (usec): min=724, max=650311, avg=22369.52, stdev=26323.40 lat (usec): min=726, max=650312, avg=22371.61, stdev=26323.85 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1156], 10.00th=[ 1319], 20.00th=[ 2474], | 30.00th=[ 5145], 40.00th=[ 12780], 50.00th=[ 17433], 60.00th=[ 22676], | 70.00th=[ 29492], 80.00th=[ 38011], 90.00th=[ 50594], 95.00th=[ 61604], | 99.00th=[ 91751], 99.50th=[103285], 99.90th=[170918], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 31, max= 143, per=24.93%, avg=81.02, stdev=24.54, samples=152 iops : min= 7, max= 35, avg=19.66, stdev= 6.16, samples=152 lat (usec) : 100=0.07%, 250=1.69%, 500=0.33%, 750=0.20%, 1000=0.62% lat (msec) : 2=7.91%, 4=5.27%, 10=6.61%, 20=24.32%, 50=43.75% lat (msec) : 100=8.69%, 250=0.52%, 750=0.03% cpu : usr=0.09%, sys=7.97%, ctx=7000, 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=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=311KiB/s (319kB/s), 78.4KiB/s-79.2KiB/s (80.3kB/s-81.1kB/s), io=23.4MiB (24.6MB), run=75061-77182msec WRITE: bw=326KiB/s (334kB/s), 80.8KiB/s-84.6KiB/s (82.7kB/s-86.6kB/s), io=24.6MiB (25.7MB), run=75061-77182msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182003: Thu Jan 22 06:16:10 2026 read: IOPS=15, BW=61.9KiB/s (63.4kB/s)(5992KiB/96773msec) clat (msec): min=3, max=834, avg=25.53, stdev=30.07 lat (msec): min=3, max=834, avg=25.53, stdev=30.07 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 27], 80.00th=[ 40], 90.00th=[ 57], 95.00th=[ 71], | 99.00th=[ 109], 99.50th=[ 116], 99.90th=[ 136], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 221, per=25.21%, avg=62.03, stdev=42.48, samples=190 iops : min= 1, max= 55, avg=14.92, stdev=10.68, samples=190 write: IOPS=16, BW=65.1KiB/s (66.6kB/s)(6296KiB/96773msec); 0 zone resets clat (msec): min=6, max=199, avg=37.02, stdev=26.35 lat (msec): min=6, max=199, avg=37.02, stdev=26.35 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 56], 90.00th=[ 74], 95.00th=[ 90], | 99.00th=[ 132], 99.50th=[ 150], 99.90th=[ 178], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 7, max= 216, per=25.24%, avg=65.13, stdev=40.30, samples=190 iops : min= 1, max= 54, avg=15.69, stdev=10.12, samples=190 lat (msec) : 4=0.03%, 10=11.72%, 20=33.04%, 50=36.49%, 100=16.70% lat (msec) : 250=1.99%, 1000=0.03% cpu : usr=0.08%, sys=2.99%, ctx=4785, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182004: Thu Jan 22 06:16:10 2026 read: IOPS=15, BW=60.0KiB/s (62.4kB/s)(5940KiB/97421msec) clat (msec): min=3, max=755, avg=25.38, stdev=29.45 lat (msec): min=3, max=755, avg=25.38, stdev=29.45 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 26], 80.00th=[ 39], 90.00th=[ 57], 95.00th=[ 72], | 99.00th=[ 111], 99.50th=[ 138], 99.90th=[ 182], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 224, per=24.72%, avg=60.82, stdev=42.57, samples=191 iops : min= 1, max= 56, avg=14.61, stdev=10.67, samples=191 write: IOPS=16, BW=65.2KiB/s (66.7kB/s)(6348KiB/97421msec); 0 zone resets clat (msec): min=5, max=207, avg=37.47, stdev=27.35 lat (msec): min=5, max=207, avg=37.47, stdev=27.35 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 74], 95.00th=[ 88], | 99.00th=[ 140], 99.50th=[ 161], 99.90th=[ 197], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 15, max= 205, per=25.12%, avg=64.82, stdev=40.17, samples=191 iops : min= 3, max= 51, avg=15.62, stdev=10.10, samples=191 lat (msec) : 4=0.03%, 10=11.69%, 20=35.09%, 50=33.92%, 100=17.09% lat (msec) : 250=2.15%, 1000=0.03% cpu : usr=0.07%, sys=3.02%, ctx=4895, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182005: Thu Jan 22 06:16:10 2026 read: IOPS=15, BW=62.2KiB/s (63.7kB/s)(6028KiB/96853msec) clat (msec): min=3, max=186, avg=25.04, stdev=22.64 lat (msec): min=3, max=186, avg=25.04, stdev=22.64 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 27], 80.00th=[ 37], 90.00th=[ 56], 95.00th=[ 75], | 99.00th=[ 107], 99.50th=[ 132], 99.90th=[ 167], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 8, max= 192, per=25.46%, avg=62.63, stdev=41.02, samples=189 iops : min= 2, max= 48, avg=15.07, stdev=10.31, samples=189 write: IOPS=16, BW=64.6KiB/s (66.2kB/s)(6260KiB/96853msec); 0 zone resets clat (msec): min=6, max=752, avg=37.60, stdev=32.70 lat (msec): min=6, max=752, avg=37.61, stdev=32.70 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 56], 90.00th=[ 73], 95.00th=[ 89], | 99.00th=[ 146], 99.50th=[ 176], 99.90th=[ 199], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 15, max= 200, per=24.91%, avg=64.26, stdev=41.28, samples=191 iops : min= 3, max= 50, avg=15.47, stdev=10.35, samples=191 lat (msec) : 4=0.13%, 10=11.82%, 20=33.14%, 50=36.65%, 100=15.89% lat (msec) : 250=2.34%, 1000=0.03% cpu : usr=0.08%, sys=2.99%, ctx=4706, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182006: Thu Jan 22 06:16:10 2026 read: IOPS=15, BW=62.3KiB/s (63.8kB/s)(6052KiB/97196msec) clat (msec): min=3, max=166, avg=24.88, stdev=22.97 lat (msec): min=3, max=166, avg=24.88, stdev=22.97 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 27], 80.00th=[ 37], 90.00th=[ 57], 95.00th=[ 74], | 99.00th=[ 108], 99.50th=[ 136], 99.90th=[ 161], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 7, max= 197, per=25.38%, avg=62.43, stdev=42.15, samples=191 iops : min= 1, max= 49, avg=15.02, stdev=10.61, samples=191 write: IOPS=16, BW=64.2KiB/s (65.7kB/s)(6236KiB/97196msec); 0 zone resets clat (msec): min=7, max=753, avg=38.03, stdev=32.40 lat (msec): min=7, max=753, avg=38.04, stdev=32.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 57], 90.00th=[ 72], 95.00th=[ 90], | 99.00th=[ 136], 99.50th=[ 157], 99.90th=[ 199], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 199, per=24.81%, avg=64.02, stdev=41.19, samples=192 iops : min= 1, max= 49, avg=15.42, stdev=10.34, samples=192 lat (msec) : 4=0.03%, 10=12.70%, 20=32.81%, 50=35.45%, 100=16.47% lat (msec) : 250=2.51%, 1000=0.03% cpu : usr=0.08%, sys=2.95%, ctx=4755, 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=246KiB/s (252kB/s), 60.0KiB/s-62.3KiB/s (62.4kB/s-63.8kB/s), io=23.4MiB (24.6MB), run=96773-97421msec WRITE: bw=258KiB/s (264kB/s), 64.2KiB/s-65.2KiB/s (65.7kB/s-66.7kB/s), io=24.6MiB (25.7MB), run=96773-97421msec 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=182041: Thu Jan 22 06:16:35 2026 read: IOPS=19, BW=316KiB/s (323kB/s)(5920KiB/18742msec) clat (usec): min=115, max=101579, avg=27581.01, stdev=16042.98 lat (usec): min=116, max=101580, avg=27588.56, stdev=16045.89 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 297], 10.00th=[ 11469], 20.00th=[ 14877], | 30.00th=[ 19006], 40.00th=[ 22152], 50.00th=[ 25297], 60.00th=[ 29492], | 70.00th=[ 33817], 80.00th=[ 39584], 90.00th=[ 47449], 95.00th=[ 54264], | 99.00th=[ 85459], 99.50th=[ 96994], 99.90th=[101188], 99.95th=[101188], | 99.99th=[101188] bw ( KiB/s): min= 191, max= 510, per=25.88%, avg=317.32, stdev=75.40, samples=37 iops : min= 11, max= 31, avg=19.22, stdev= 4.73, samples=37 write: IOPS=21, BW=340KiB/s (348kB/s)(6368KiB/18742msec); 0 zone resets clat (usec): min=1148, max=97537, avg=21199.25, stdev=19509.31 lat (usec): min=1151, max=97540, avg=21213.73, stdev=19498.49 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1926], 10.00th=[ 2573], 20.00th=[ 4015], | 30.00th=[ 5932], 40.00th=[10421], 50.00th=[15401], 60.00th=[20841], | 70.00th=[26870], 80.00th=[39060], 90.00th=[49546], 95.00th=[61080], | 99.00th=[90702], 99.50th=[93848], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 127, max= 542, per=26.42%, avg=340.76, stdev=109.85, samples=37 iops : min= 7, max= 33, avg=20.70, stdev= 6.86, samples=37 lat (usec) : 250=2.21%, 500=0.78%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.78%, 4=6.90%, 10=10.68%, 20=21.61%, 50=44.79% lat (msec) : 100=8.85%, 250=0.13% cpu : usr=0.09%, sys=10.18%, ctx=1850, 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=182042: Thu Jan 22 06:16:35 2026 read: IOPS=18, BW=294KiB/s (301kB/s)(5744KiB/19532msec) clat (usec): min=111, max=113519, avg=29096.65, stdev=19074.04 lat (usec): min=112, max=113520, avg=29103.08, stdev=19074.57 clat percentiles (usec): | 1.00th=[ 129], 5.00th=[ 194], 10.00th=[ 10421], 20.00th=[ 15795], | 30.00th=[ 18482], 40.00th=[ 21890], 50.00th=[ 26346], 60.00th=[ 30278], | 70.00th=[ 34866], 80.00th=[ 41681], 90.00th=[ 52691], 95.00th=[ 64750], | 99.00th=[ 99091], 99.50th=[112722], 99.90th=[113771], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 54, max= 479, per=23.90%, avg=293.03, stdev=92.63, samples=38 iops : min= 3, max= 29, avg=17.68, stdev= 5.85, samples=38 write: IOPS=20, BW=335KiB/s (343kB/s)(6544KiB/19532msec); 0 zone resets clat (usec): min=1090, max=130036, avg=21646.21, stdev=19056.70 lat (usec): min=1092, max=130038, avg=21648.78, stdev=19056.52 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1876], 10.00th=[ 3097], 20.00th=[ 4752], | 30.00th=[ 6652], 40.00th=[ 12780], 50.00th=[ 17695], 60.00th=[ 22414], | 70.00th=[ 28443], 80.00th=[ 35390], 90.00th=[ 46924], 95.00th=[ 57934], | 99.00th=[ 89654], 99.50th=[ 95945], 99.90th=[130548], 99.95th=[130548], | 99.99th=[130548] bw ( KiB/s): min= 158, max= 510, per=25.55%, avg=329.63, stdev=95.23, samples=38 iops : min= 9, max= 31, avg=19.97, stdev= 6.04, samples=38 lat (usec) : 250=2.47%, 500=0.52%, 750=0.65% lat (msec) : 2=3.12%, 4=5.34%, 10=11.46%, 20=22.40%, 50=44.79% lat (msec) : 100=8.59%, 250=0.65% cpu : usr=0.09%, sys=10.16%, ctx=1946, 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=182045: Thu Jan 22 06:16:35 2026 read: IOPS=20, BW=323KiB/s (331kB/s)(6256KiB/19364msec) clat (usec): min=84, max=111717, avg=26449.95, stdev=17888.13 lat (usec): min=84, max=111718, avg=26454.09, stdev=17888.55 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 206], 10.00th=[ 1287], 20.00th=[ 14353], | 30.00th=[ 16712], 40.00th=[ 19792], 50.00th=[ 23725], 60.00th=[ 27395], | 70.00th=[ 31851], 80.00th=[ 40109], 90.00th=[ 47973], 95.00th=[ 58459], | 99.00th=[ 90702], 99.50th=[ 95945], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 159, max= 510, per=26.31%, avg=322.50, stdev=92.37, samples=38 iops : min= 9, max= 31, avg=19.55, stdev= 5.76, samples=38 write: IOPS=19, BW=312KiB/s (319kB/s)(6032KiB/19364msec); 0 zone resets clat (usec): min=1203, max=109239, avg=23413.53, stdev=21608.22 lat (usec): min=1206, max=109241, avg=23428.05, stdev=21597.14 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1811], 10.00th=[ 2704], 20.00th=[ 4817], | 30.00th=[ 7767], 40.00th=[ 12780], 50.00th=[ 17433], 60.00th=[ 22152], | 70.00th=[ 28967], 80.00th=[ 38011], 90.00th=[ 56886], 95.00th=[ 69731], | 99.00th=[ 96994], 99.50th=[101188], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 95, max= 638, per=23.75%, avg=306.42, stdev=101.97, samples=38 iops : min= 5, max= 39, avg=18.53, stdev= 6.37, samples=38 lat (usec) : 100=0.13%, 250=2.99%, 500=1.56%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.39%, 4=5.34%, 10=9.77%, 20=25.00%, 50=40.62% lat (msec) : 100=10.42%, 250=0.52% cpu : usr=0.10%, sys=10.04%, ctx=1978, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182047: Thu Jan 22 06:16:35 2026 read: IOPS=20, BW=327KiB/s (334kB/s)(6032KiB/18473msec) clat (usec): min=123, max=119013, avg=26702.59, stdev=17606.75 lat (usec): min=123, max=119014, avg=26708.72, stdev=17609.58 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 208], 10.00th=[ 469], 20.00th=[ 13829], | 30.00th=[ 17957], 40.00th=[ 21365], 50.00th=[ 24773], 60.00th=[ 29492], | 70.00th=[ 33424], 80.00th=[ 38536], 90.00th=[ 46924], 95.00th=[ 55313], | 99.00th=[ 77071], 99.50th=[114820], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 95, max= 478, per=26.35%, avg=323.08, stdev=90.29, samples=36 iops : min= 5, max= 29, avg=19.58, stdev= 5.69, samples=36 write: IOPS=21, BW=339KiB/s (347kB/s)(6256KiB/18473msec); 0 zone resets clat (usec): min=1201, max=107742, avg=20975.94, stdev=19184.83 lat (usec): min=1203, max=107744, avg=20981.86, stdev=19189.82 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1942], 10.00th=[ 2606], 20.00th=[ 4686], | 30.00th=[ 6259], 40.00th=[ 10552], 50.00th=[ 16581], 60.00th=[ 21365], | 70.00th=[ 26608], 80.00th=[ 35914], 90.00th=[ 45876], 95.00th=[ 58983], | 99.00th=[ 84411], 99.50th=[ 96994], 99.90th=[107480], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 128, max= 574, per=26.12%, avg=336.94, stdev=99.76, samples=36 iops : min= 8, max= 35, avg=20.47, stdev= 6.27, samples=36 lat (usec) : 250=3.12%, 500=1.95%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.12%, 4=6.25%, 10=11.46%, 20=21.61%, 50=43.75% lat (msec) : 100=7.94%, 250=0.52% cpu : usr=0.10%, sys=10.11%, ctx=1899, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1226KiB/s (1256kB/s), 294KiB/s-327KiB/s (301kB/s-334kB/s), io=23.4MiB (24.5MB), run=18473-19532msec WRITE: bw=1290KiB/s (1321kB/s), 312KiB/s-340KiB/s (319kB/s-348kB/s), io=24.6MiB (25.8MB), run=18473-19532msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182043: Thu Jan 22 06:16:41 2026 read: IOPS=14, BW=239KiB/s (245kB/s)(5920KiB/24792msec) clat (msec): min=4, max=105, avg=26.50, stdev=20.33 lat (msec): min=4, max=105, avg=26.50, stdev=20.33 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 55], 95.00th=[ 70], | 99.00th=[ 94], 99.50th=[ 104], 99.90th=[ 106], 99.95th=[ 106], | 99.99th=[ 106] bw ( KiB/s): min= 62, max= 608, per=24.91%, avg=238.35, stdev=146.66, samples=49 iops : min= 3, max= 38, avg=14.22, stdev= 9.18, samples=49 write: IOPS=16, BW=257KiB/s (263kB/s)(6368KiB/24792msec); 0 zone resets clat (msec): min=8, max=138, avg=37.17, stdev=24.63 lat (msec): min=8, max=138, avg=37.18, stdev=24.63 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 74], 95.00th=[ 85], | 99.00th=[ 122], 99.50th=[ 127], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 94, max= 603, per=25.43%, avg=256.08, stdev=138.33, samples=49 iops : min= 5, max= 37, avg=15.33, stdev= 8.64, samples=49 lat (msec) : 10=8.59%, 20=31.25%, 50=41.15%, 100=16.93%, 250=2.08% cpu : usr=0.08%, sys=3.66%, ctx=1198, 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=182044: Thu Jan 22 06:16:41 2026 read: IOPS=14, BW=230KiB/s (235kB/s)(5744KiB/25023msec) clat (msec): min=4, max=125, avg=26.72, stdev=22.76 lat (msec): min=4, max=125, avg=26.72, stdev=22.76 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 62], 95.00th=[ 81], | 99.00th=[ 105], 99.50th=[ 123], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 31, max= 672, per=23.71%, avg=226.92, stdev=143.47, samples=49 iops : min= 1, max= 42, avg=13.51, stdev= 8.99, samples=49 write: IOPS=16, BW=262KiB/s (268kB/s)(6544KiB/25023msec); 0 zone resets clat (msec): min=8, max=221, avg=37.58, stdev=25.90 lat (msec): min=8, max=221, avg=37.58, stdev=25.90 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 71], 95.00th=[ 84], | 99.00th=[ 121], 99.50th=[ 161], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 93, max= 670, per=25.43%, avg=256.12, stdev=140.69, samples=49 iops : min= 5, max= 41, avg=15.33, stdev= 8.80, samples=49 lat (msec) : 10=9.51%, 20=31.51%, 50=39.71%, 100=17.45%, 250=1.82% cpu : usr=0.09%, sys=3.48%, ctx=1267, 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=182046: Thu Jan 22 06:16:41 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(6256KiB/24810msec) clat (msec): min=5, max=140, avg=25.77, stdev=20.78 lat (msec): min=5, max=140, avg=25.77, stdev=20.78 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 39], 90.00th=[ 56], 95.00th=[ 70], | 99.00th=[ 93], 99.50th=[ 115], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 62, max= 638, per=26.42%, avg=252.82, stdev=156.03, samples=49 iops : min= 3, max= 39, avg=15.14, stdev= 9.74, samples=49 write: IOPS=15, BW=243KiB/s (249kB/s)(6032KiB/24810msec); 0 zone resets clat (msec): min=8, max=228, avg=38.56, stdev=28.10 lat (msec): min=8, max=228, avg=38.56, stdev=28.10 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 56], 90.00th=[ 75], 95.00th=[ 90], | 99.00th=[ 128], 99.50th=[ 174], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 63, max= 666, per=23.94%, avg=241.08, stdev=140.48, samples=49 iops : min= 3, max= 41, avg=14.41, stdev= 8.82, samples=49 lat (msec) : 10=9.38%, 20=33.20%, 50=38.15%, 100=17.32%, 250=1.95% cpu : usr=0.08%, sys=3.59%, ctx=1277, 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=182048: Thu Jan 22 06:16:41 2026 read: IOPS=15, BW=242KiB/s (248kB/s)(6032KiB/24893msec) clat (msec): min=3, max=197, avg=27.31, stdev=25.13 lat (msec): min=3, max=197, avg=27.32, stdev=25.13 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 42], 90.00th=[ 62], 95.00th=[ 82], | 99.00th=[ 120], 99.50th=[ 131], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 63, max= 702, per=25.00%, avg=239.22, stdev=150.48, samples=49 iops : min= 3, max= 43, avg=14.27, stdev= 9.46, samples=49 write: IOPS=15, BW=251KiB/s (257kB/s)(6256KiB/24893msec); 0 zone resets clat (msec): min=8, max=169, avg=36.87, stdev=25.63 lat (msec): min=8, max=169, avg=36.87, stdev=25.63 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 56], 90.00th=[ 75], 95.00th=[ 93], | 99.00th=[ 121], 99.50th=[ 133], 99.90th=[ 171], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 63, max= 632, per=24.85%, avg=250.20, stdev=153.65, samples=49 iops : min= 3, max= 39, avg=14.96, stdev= 9.62, samples=49 lat (msec) : 4=0.13%, 10=9.90%, 20=33.72%, 50=37.37%, 100=16.15% lat (msec) : 250=2.73% cpu : usr=0.07%, sys=3.54%, ctx=1296, 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=957KiB/s (980kB/s), 230KiB/s-252KiB/s (235kB/s-258kB/s), io=23.4MiB (24.5MB), run=24792-25023msec WRITE: bw=1007KiB/s (1031kB/s), 243KiB/s-262KiB/s (249kB/s-268kB/s), io=24.6MiB (25.8MB), run=24792-25023msec 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=182059: Thu Jan 22 06:16:51 2026 read: IOPS=2, BW=2320KiB/s (2376kB/s)(7168KiB/3089msec) clat (usec): min=1156, max=1495.1k, avg=298001.10, stdev=531528.68 lat (usec): min=1157, max=1495.1k, avg=298002.34, stdev=531528.62 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1156], 10.00th=[ 1156], | 20.00th=[ 76022], 30.00th=[ 76022], 40.00th=[ 76022], | 50.00th=[ 113771], 60.00th=[ 114820], 70.00th=[ 114820], | 80.00th=[ 208667], 90.00th=[1501561], 95.00th=[1501561], | 99.00th=[1501561], 99.50th=[1501561], 99.90th=[1501561], | 99.95th=[1501561], 99.99th=[1501561] bw ( KiB/s): min= 1861, max= 4063, per=63.22%, avg=2979.00, stdev=1191.25, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1657KiB/s (1697kB/s)(5120KiB/3089msec); 0 zone resets clat (msec): min=94, max=357, avg=189.79, stdev=110.56 lat (msec): min=94, max=357, avg=189.88, stdev=110.56 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 127], 60.00th=[ 127], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 2031, max= 3723, per=39.38%, avg=2597.67, stdev=974.58, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 100=25.00%, 250=50.00%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=22.09%, ctx=699, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182060: Thu Jan 22 06:16:51 2026 read: IOPS=0, BW=471KiB/s (483kB/s)(2048KiB/4346msec) clat (usec): min=999, max=93802, avg=47401.31, stdev=65621.39 lat (usec): min=1001, max=93805, avg=47403.16, stdev=65622.21 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1004], 10.00th=[ 1004], 20.00th=[ 1004], | 30.00th=[ 1004], 40.00th=[ 1004], 50.00th=[ 1004], 60.00th=[93848], | 70.00th=[93848], 80.00th=[93848], 90.00th=[93848], 95.00th=[93848], | 99.00th=[93848], 99.50th=[93848], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 1906, max= 2043, per=41.90%, avg=1974.50, stdev=96.87, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2356KiB/s (2413kB/s)(10.0MiB/4346msec); 0 zone resets clat (msec): min=110, max=2017, avg=422.56, stdev=579.03 lat (msec): min=110, max=2018, avg=422.68, stdev=579.02 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 115], | 30.00th=[ 126], 40.00th=[ 186], 50.00th=[ 203], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 451], 90.00th=[ 550], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 2043, max= 6107, per=61.90%, avg=4083.25, stdev=1659.15, samples=4 iops : min= 1, max= 5, avg= 3.25, stdev= 1.71, samples=4 lat (usec) : 1000=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=8.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=16.71%, ctx=88, 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=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=182061: Thu Jan 22 06:16:51 2026 read: IOPS=1, BW=1605KiB/s (1644kB/s)(6144KiB/3828msec) clat (usec): min=936, max=216974, avg=113864.50, stdev=91177.51 lat (usec): min=938, max=216976, avg=113865.60, stdev=91177.23 clat percentiles (usec): | 1.00th=[ 938], 5.00th=[ 938], 10.00th=[ 938], 20.00th=[ 1401], | 30.00th=[ 1401], 40.00th=[139461], 50.00th=[139461], 60.00th=[152044], | 70.00th=[173016], 80.00th=[173016], 90.00th=[217056], 95.00th=[217056], | 99.00th=[217056], 99.50th=[217056], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 2043, max= 4079, per=69.64%, avg=3281.67, stdev=1087.38, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1605KiB/s (1644kB/s)(6144KiB/3828msec); 0 zone resets clat (msec): min=159, max=1870, avg=512.72, stdev=668.60 lat (msec): min=159, max=1870, avg=512.81, stdev=668.61 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 234], 50.00th=[ 234], 60.00th=[ 239], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 1861, max= 3835, per=37.05%, avg=2444.50, stdev=930.88, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 250=66.67%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=17.12%, ctx=251, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182062: Thu Jan 22 06:16:51 2026 read: IOPS=1, BW=1583KiB/s (1621kB/s)(5120KiB/3234msec) clat (usec): min=1222, max=168598, avg=90185.60, stdev=82056.86 lat (usec): min=1224, max=168599, avg=90186.99, stdev=82056.72 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1221], 10.00th=[ 1221], 20.00th=[ 1221], | 30.00th=[ 2008], 40.00th=[ 2008], 50.00th=[129500], 60.00th=[129500], | 70.00th=[149947], 80.00th=[149947], 90.00th=[168821], 95.00th=[168821], | 99.00th=[168821], 99.50th=[168821], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 3723, max= 4079, per=82.79%, avg=3901.00, stdev=251.73, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2216KiB/s (2270kB/s)(7168KiB/3234msec); 0 zone resets clat (msec): min=72, max=1629, avg=388.32, stdev=553.21 lat (msec): min=72, max=1629, avg=388.40, stdev=553.21 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 182], 60.00th=[ 226], | 70.00th=[ 226], 80.00th=[ 326], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 1954, max= 4079, per=44.67%, avg=2946.75, stdev=1111.86, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 100=8.33%, 250=58.33%, 500=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=21.59%, ctx=276, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4712KiB/s (4825kB/s), 471KiB/s-2320KiB/s (483kB/s-2376kB/s), io=20.0MiB (20.0MB), run=3089-4346msec WRITE: bw=6597KiB/s (6756kB/s), 1605KiB/s-2356KiB/s (1644kB/s-2413kB/s), io=28.0MiB (29.4MB), run=3089-4346msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182064: Thu Jan 22 06:16:51 2026 read: IOPS=1, BW=1944KiB/s (1991kB/s)(7168KiB/3687msec) clat (msec): min=56, max=1702, avg=383.78, stdev=590.52 lat (msec): min=56, max=1702, avg=383.78, stdev=590.52 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 74], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 157], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 359], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 1490, max= 4096, per=63.61%, avg=3068.00, stdev=1387.33, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1389KiB/s (1422kB/s)(5120KiB/3687msec); 0 zone resets clat (msec): min=97, max=339, avg=186.01, stdev=117.63 lat (msec): min=97, max=339, avg=186.10, stdev=117.62 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 106], 60.00th=[ 106], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 2048, max= 3618, per=41.96%, avg=2833.00, stdev=1110.16, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.55%, ctx=84, 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=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=182065: Thu Jan 22 06:16:51 2026 read: IOPS=0, BW=487KiB/s (498kB/s)(2048KiB/4209msec) clat (msec): min=113, max=401, avg=257.38, stdev=203.58 lat (msec): min=113, max=401, avg=257.38, stdev=203.58 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 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= 1622, max= 2048, per=38.05%, avg=1835.00, stdev=301.23, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2433KiB/s (2491kB/s)(10.0MiB/4209msec); 0 zone resets clat (msec): min=68, max=2295, avg=367.97, stdev=681.85 lat (msec): min=68, max=2295, avg=368.05, stdev=681.85 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 101], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 125], 60.00th=[ 146], | 70.00th=[ 161], 80.00th=[ 182], 90.00th=[ 359], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 1622, max= 6144, per=66.67%, avg=4501.50, stdev=2148.76, samples=4 iops : min= 1, max= 6, avg= 4.25, stdev= 2.36, samples=4 lat (msec) : 100=8.33%, 250=66.67%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=6.94%, ctx=141, 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=182066: Thu Jan 22 06:16:51 2026 read: IOPS=1, BW=1585KiB/s (1623kB/s)(6144KiB/3877msec) clat (msec): min=76, max=211, avg=134.54, stdev=49.20 lat (msec): min=76, max=211, avg=134.55, stdev=49.20 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 103], | 30.00th=[ 103], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 129], | 70.00th=[ 171], 80.00th=[ 171], 90.00th=[ 211], 95.00th=[ 211], | 99.00th=[ 211], 99.50th=[ 211], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 4096, max= 5427, per=98.72%, avg=4761.50, stdev=941.16, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1585KiB/s (1623kB/s)(6144KiB/3877msec); 0 zone resets clat (msec): min=103, max=1865, avg=509.34, stdev=673.91 lat (msec): min=103, max=1865, avg=509.45, stdev=673.91 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 275], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 1651, max= 2048, per=28.45%, avg=1920.80, stdev=182.91, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=6.37%, ctx=74, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182067: Thu Jan 22 06:16:51 2026 read: IOPS=1, BW=1206KiB/s (1235kB/s)(5120KiB/4246msec) clat (msec): min=47, max=285, avg=103.10, stdev=102.54 lat (msec): min=47, max=285, avg=103.11, stdev=102.54 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 48], | 30.00th=[ 50], 40.00th=[ 50], 50.00th=[ 54], 60.00th=[ 54], | 70.00th=[ 80], 80.00th=[ 80], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 2048, max= 6144, per=84.93%, avg=4096.00, stdev=2896.31, samples=2 iops : min= 2, max= 6, avg= 4.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1688KiB/s (1729kB/s)(7168KiB/4246msec); 0 zone resets clat (msec): min=58, max=2028, avg=526.43, stdev=681.59 lat (msec): min=58, max=2028, avg=526.52, stdev=681.60 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 82], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 321], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 472], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 1521, max= 6144, per=40.20%, avg=2714.00, stdev=1929.66, samples=5 iops : min= 1, max= 6, avg= 2.40, stdev= 2.07, samples=5 lat (msec) : 50=16.67%, 100=33.33%, 500=41.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.47%, ctx=104, 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=4823KiB/s (4939kB/s), 487KiB/s-1944KiB/s (498kB/s-1991kB/s), io=20.0MiB (20.0MB), run=3687-4246msec WRITE: bw=6753KiB/s (6915kB/s), 1389KiB/s-2433KiB/s (1422kB/s-2491kB/s), io=28.0MiB (29.4MB), run=3687-4246msec 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=182072: Thu Jan 22 06:16:59 2026 read: IOPS=1, BW=6915KiB/s (7081kB/s)(12.0MiB/1777msec) clat (msec): min=536, max=596, avg=572.29, stdev=31.71 lat (msec): min=536, max=596, avg=572.30, stdev=31.71 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 6196, max= 8175, per=100.00%, avg=7185.50, stdev=1399.36, 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=6.08%, ctx=58, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=182073: Thu Jan 22 06:16:59 2026 read: IOPS=0, BW=1606KiB/s (1644kB/s)(4096KiB/2551msec) clat (nsec): min=814216k, max=814216k, avg=814216346.00, stdev= 0.00 lat (nsec): min=814219k, max=814219k, avg=814218786.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 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=3211KiB/s (3288kB/s)(8192KiB/2551msec); 0 zone resets clat (msec): min=205, max=1450, avg=827.91, stdev=879.96 lat (msec): min=206, max=1451, avg=828.78, stdev=880.73 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 1452], | 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] lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=5.53%, ctx=57, 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=182074: Thu Jan 22 06:16:59 2026 write: IOPS=2, BW=9438KiB/s (9664kB/s)(12.0MiB/1302msec); 0 zone resets clat (msec): min=185, max=743, avg=424.34, stdev=287.84 lat (msec): min=185, max=744, avg=424.84, stdev=287.75 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min=11160, max=11160, per=86.88%, avg=11160.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=9.84%, ctx=50, 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=182075: Thu Jan 22 06:16:59 2026 write: IOPS=1, BW=6519KiB/s (6675kB/s)(12.0MiB/1885msec); 0 zone resets clat (msec): min=168, max=871, avg=614.95, stdev=387.94 lat (msec): min=169, max=872, avg=615.35, stdev=387.83 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 5680, max= 8094, per=53.62%, avg=6887.00, stdev=1706.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.05%, sys=5.94%, ctx=53, 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=6423KiB/s (6577kB/s), 1606KiB/s-6915KiB/s (1644kB/s-7081kB/s), io=16.0MiB (16.8MB), run=1777-2551msec WRITE: bw=12.5MiB/s (13.2MB/s), 3211KiB/s-9438KiB/s (3288kB/s-9664kB/s), io=32.0MiB (33.6MB), run=1302-2551msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182077: Thu Jan 22 06:16:59 2026 read: IOPS=1, BW=7807KiB/s (7994kB/s)(12.0MiB/1574msec) clat (msec): min=509, max=530, avg=517.30, stdev=11.09 lat (msec): min=509, max=530, avg=517.30, stdev=11.09 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 5927, max= 7922, per=93.11%, avg=6924.50, stdev=1410.68, 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=22.95%, ctx=578, 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=182078: Thu Jan 22 06:16:59 2026 read: IOPS=0, BW=1859KiB/s (1904kB/s)(4096KiB/2203msec) clat (nsec): min=447720k, max=447720k, avg=447719777.00, stdev= 0.00 lat (nsec): min=447722k, max=447722k, avg=447721985.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 5649, max= 5649, per=75.96%, avg=5649.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3719KiB/s (3808kB/s)(8192KiB/2203msec); 0 zone resets clat (msec): min=133, max=1497, avg=815.78, stdev=964.37 lat (msec): min=134, max=1498, avg=816.66, stdev=964.92 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 134], 60.00th=[ 1502], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=8.49%, ctx=299, 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=182079: Thu Jan 22 06:16:59 2026 write: IOPS=1, BW=5020KiB/s (5140kB/s)(12.0MiB/2448msec); 0 zone resets clat (msec): min=381, max=1358, avg=804.78, stdev=501.47 lat (msec): min=381, max=1358, avg=805.22, stdev=501.60 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8047, max= 8175, per=60.60%, avg=8111.00, stdev=90.51, 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=4.58%, ctx=50, 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=182080: Thu Jan 22 06:16:59 2026 write: IOPS=1, BW=6162KiB/s (6310kB/s)(12.0MiB/1994msec); 0 zone resets clat (msec): min=573, max=758, avg=639.02, stdev=103.68 lat (msec): min=573, max=759, avg=639.49, stdev=103.71 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 5988, max= 8047, per=52.43%, avg=7017.50, stdev=1455.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.05%, sys=6.12%, ctx=63, 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=7437KiB/s (7616kB/s), 1859KiB/s-7807KiB/s (1904kB/s-7994kB/s), io=16.0MiB (16.8MB), run=1574-2203msec WRITE: bw=13.1MiB/s (13.7MB/s), 3719KiB/s-6162KiB/s (3808kB/s-6310kB/s), io=32.0MiB (33.6MB), run=1994-2448msec