== sanity test 398b: DIO and buffer IO race ============== 01:46:46 (1783144006) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.50047 s, 14.4 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=179363: Sat Jul 4 01:48:05 2026 read: IOPS=21, BW=85.6KiB/s (87.7kB/s)(5992KiB/70003msec) clat (usec): min=41, max=740016, avg=25264.26, stdev=23008.31 lat (usec): min=42, max=740018, avg=25265.73, stdev=23008.36 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 9110], 10.00th=[ 11207], 20.00th=[ 14222], | 30.00th=[ 16909], 40.00th=[ 19530], 50.00th=[ 22676], 60.00th=[ 26346], | 70.00th=[ 29754], 80.00th=[ 34341], 90.00th=[ 40633], 95.00th=[ 48497], | 99.00th=[ 72877], 99.50th=[ 90702], 99.90th=[137364], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 13, max= 151, per=24.83%, avg=85.16, stdev=24.29, samples=139 iops : min= 3, max= 37, avg=20.78, stdev= 6.08, samples=139 write: IOPS=22, BW=89.9KiB/s (92.1kB/s)(6296KiB/70003msec); 0 zone resets clat (usec): min=983, max=199345, avg=20297.39, stdev=17704.29 lat (usec): min=985, max=199346, avg=20299.12, stdev=17704.41 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 2212], 10.00th=[ 2933], 20.00th=[ 4490], | 30.00th=[ 7898], 40.00th=[ 12649], 50.00th=[ 16450], 60.00th=[ 20055], | 70.00th=[ 25560], 80.00th=[ 32637], 90.00th=[ 43779], 95.00th=[ 53216], | 99.00th=[ 77071], 99.50th=[ 86508], 99.90th=[114820], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 39, max= 183, per=25.10%, avg=90.11, stdev=27.31, samples=138 iops : min= 9, max= 45, avg=22.01, stdev= 6.85, samples=138 lat (usec) : 50=0.07%, 100=0.52%, 250=1.07%, 500=0.07%, 1000=0.07% lat (msec) : 2=2.05%, 4=6.61%, 10=10.58%, 20=29.82%, 50=43.82% lat (msec) : 100=5.08%, 250=0.23%, 750=0.03% cpu : usr=0.11%, sys=16.33%, ctx=8250, 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=179364: Sat Jul 4 01:48:05 2026 read: IOPS=21, BW=85.4KiB/s (87.4kB/s)(5940KiB/69581msec) clat (usec): min=42, max=113153, avg=24663.24, stdev=14116.49 lat (usec): min=42, max=113154, avg=24664.41, stdev=14116.53 clat percentiles (usec): | 1.00th=[ 74], 5.00th=[ 8455], 10.00th=[ 11338], 20.00th=[ 14091], | 30.00th=[ 16319], 40.00th=[ 19006], 50.00th=[ 21890], 60.00th=[ 25035], | 70.00th=[ 29492], 80.00th=[ 33817], 90.00th=[ 41681], 95.00th=[ 49546], | 99.00th=[ 74974], 99.50th=[ 85459], 99.90th=[101188], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 6, max= 136, per=24.73%, avg=84.81, stdev=23.40, samples=138 iops : min= 1, max= 34, avg=20.69, stdev= 5.87, samples=138 write: IOPS=22, BW=91.2KiB/s (93.4kB/s)(6348KiB/69581msec); 0 zone resets clat (usec): min=1048, max=731759, avg=20606.71, stdev=25006.53 lat (usec): min=1048, max=731759, avg=20609.25, stdev=25006.44 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 2024], 10.00th=[ 2737], 20.00th=[ 4359], | 30.00th=[ 7373], 40.00th=[ 12256], 50.00th=[ 16319], 60.00th=[ 20317], | 70.00th=[ 25560], 80.00th=[ 32375], 90.00th=[ 44303], 95.00th=[ 52691], | 99.00th=[ 85459], 99.50th=[ 90702], 99.90th=[107480], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 31, max= 199, per=25.41%, avg=91.20, stdev=28.41, samples=137 iops : min= 7, max= 49, avg=22.29, stdev= 7.12, samples=137 lat (usec) : 50=0.07%, 100=0.85%, 250=0.78%, 500=0.10%, 750=0.03% lat (msec) : 2=2.47%, 4=7.13%, 10=9.80%, 20=30.50%, 50=42.71% lat (msec) : 100=5.40%, 250=0.13%, 750=0.03% cpu : usr=0.11%, sys=16.39%, ctx=8358, 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=179365: Sat Jul 4 01:48:05 2026 read: IOPS=21, BW=86.7KiB/s (88.8kB/s)(6028KiB/69498msec) clat (usec): min=50, max=127048, avg=24818.66, stdev=14270.07 lat (usec): min=51, max=127050, avg=24822.74, stdev=14270.40 clat percentiles (usec): | 1.00th=[ 90], 5.00th=[ 9110], 10.00th=[ 10945], 20.00th=[ 13829], | 30.00th=[ 16581], 40.00th=[ 19006], 50.00th=[ 21890], 60.00th=[ 25560], | 70.00th=[ 29230], 80.00th=[ 34341], 90.00th=[ 42206], 95.00th=[ 51643], | 99.00th=[ 73925], 99.50th=[ 82314], 99.90th=[115868], 99.95th=[127402], | 99.99th=[127402] bw ( KiB/s): min= 23, max= 152, per=25.40%, avg=87.14, stdev=24.27, samples=137 iops : min= 5, max= 38, avg=21.27, stdev= 6.07, samples=137 write: IOPS=22, BW=90.1KiB/s (92.2kB/s)(6260KiB/69498msec); 0 zone resets clat (usec): min=979, max=736255, avg=20351.43, stdev=24612.42 lat (usec): min=980, max=736256, avg=20355.20, stdev=24611.21 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 2180], 10.00th=[ 2835], 20.00th=[ 4228], | 30.00th=[ 7242], 40.00th=[ 12518], 50.00th=[ 16319], 60.00th=[ 20579], | 70.00th=[ 25297], 80.00th=[ 32375], 90.00th=[ 43779], 95.00th=[ 53740], | 99.00th=[ 69731], 99.50th=[ 77071], 99.90th=[113771], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 23, max= 160, per=25.18%, avg=90.41, stdev=28.16, samples=137 iops : min= 5, max= 40, avg=22.09, stdev= 7.09, samples=137 lat (usec) : 100=0.72%, 250=0.81%, 500=0.13%, 1000=0.03% lat (msec) : 2=2.18%, 4=7.45%, 10=9.86%, 20=30.11%, 50=42.19% lat (msec) : 100=6.35%, 250=0.13%, 750=0.03% cpu : usr=0.13%, sys=16.17%, ctx=8211, 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=179366: Sat Jul 4 01:48:05 2026 read: IOPS=21, BW=86.7KiB/s (88.8kB/s)(6052KiB/69812msec) clat (usec): min=45, max=711296, avg=25056.97, stdev=21955.17 lat (usec): min=46, max=711297, avg=25063.27, stdev=21953.51 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 9372], 10.00th=[ 11469], 20.00th=[ 13960], | 30.00th=[ 16712], 40.00th=[ 19792], 50.00th=[ 22676], 60.00th=[ 25560], | 70.00th=[ 29754], 80.00th=[ 33817], 90.00th=[ 40633], 95.00th=[ 47449], | 99.00th=[ 68682], 99.50th=[ 79168], 99.90th=[109577], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 13, max= 159, per=25.12%, avg=86.15, stdev=25.36, samples=138 iops : min= 3, max= 39, avg=21.02, stdev= 6.39, samples=138 write: IOPS=22, BW=89.3KiB/s (91.5kB/s)(6236KiB/69812msec); 0 zone resets clat (usec): min=900, max=206884, avg=20318.59, stdev=17657.25 lat (usec): min=901, max=206885, avg=20324.44, stdev=17654.41 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 2147], 10.00th=[ 2802], 20.00th=[ 4424], | 30.00th=[ 7111], 40.00th=[ 12518], 50.00th=[ 16909], 60.00th=[ 20841], | 70.00th=[ 25822], 80.00th=[ 33162], 90.00th=[ 43779], 95.00th=[ 53216], | 99.00th=[ 74974], 99.50th=[ 82314], 99.90th=[122160], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 26, max= 191, per=24.75%, avg=88.84, stdev=26.19, samples=138 iops : min= 6, max= 47, avg=21.70, stdev= 6.56, samples=138 lat (usec) : 50=0.07%, 100=0.75%, 250=0.65%, 500=0.13%, 1000=0.07% lat (msec) : 2=1.95%, 4=7.16%, 10=9.67%, 20=28.81%, 50=45.54% lat (msec) : 100=5.01%, 250=0.16%, 750=0.03% cpu : usr=0.13%, sys=16.46%, ctx=8425, 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=343KiB/s (351kB/s), 85.4KiB/s-86.7KiB/s (87.4kB/s-88.8kB/s), io=23.4MiB (24.6MB), run=69498-70003msec WRITE: bw=359KiB/s (368kB/s), 89.3KiB/s-91.2KiB/s (91.5kB/s-93.4kB/s), io=24.6MiB (25.7MB), run=69498-70003msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179358: Sat Jul 4 01:48:23 2026 read: IOPS=17, BW=68.3KiB/s (69.0kB/s)(5992KiB/87690msec) clat (msec): min=4, max=747, avg=24.40, stdev=27.37 lat (msec): min=4, max=747, avg=24.40, stdev=27.37 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 52], 95.00th=[ 65], | 99.00th=[ 103], 99.50th=[ 125], 99.90th=[ 163], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 232, per=24.95%, avg=68.12, stdev=41.74, samples=173 iops : min= 1, max= 58, avg=16.55, stdev=10.52, samples=173 write: IOPS=17, BW=71.8KiB/s (73.5kB/s)(6296KiB/87690msec); 0 zone resets clat (msec): min=7, max=206, avg=32.31, stdev=20.53 lat (msec): min=7, max=206, avg=32.32, stdev=20.53 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 47], 90.00th=[ 59], 95.00th=[ 71], | 99.00th=[ 105], 99.50th=[ 124], 99.90th=[ 153], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 8, max= 192, per=25.03%, avg=71.60, stdev=40.21, samples=173 iops : min= 2, max= 48, avg=17.42, stdev=10.12, samples=173 lat (msec) : 10=11.20%, 20=34.24%, 50=40.85%, 100=12.70%, 250=0.98% lat (msec) : 750=0.03% cpu : usr=0.12%, sys=7.79%, ctx=5903, 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=179359: Sat Jul 4 01:48:23 2026 read: IOPS=16, BW=67.7KiB/s (69.3kB/s)(5940KiB/87749msec) clat (msec): min=4, max=725, avg=24.04, stdev=26.36 lat (msec): min=4, max=725, avg=24.04, stdev=26.36 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 35], 90.00th=[ 51], 95.00th=[ 63], | 99.00th=[ 93], 99.50th=[ 113], 99.90th=[ 161], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8, max= 216, per=24.75%, avg=67.57, stdev=42.13, samples=173 iops : min= 2, max= 54, avg=16.42, stdev=10.62, samples=173 write: IOPS=18, BW=72.3KiB/s (74.1kB/s)(6348KiB/87749msec); 0 zone resets clat (msec): min=7, max=183, avg=32.62, stdev=21.28 lat (msec): min=7, max=183, avg=32.63, stdev=21.28 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 48], 90.00th=[ 62], 95.00th=[ 75], | 99.00th=[ 106], 99.50th=[ 120], 99.90th=[ 161], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 15, max= 184, per=25.16%, avg=71.95, stdev=39.60, samples=173 iops : min= 3, max= 46, avg=17.51, stdev= 9.99, samples=173 lat (msec) : 10=11.10%, 20=35.51%, 50=39.16%, 100=13.22%, 250=0.98% lat (msec) : 750=0.03% cpu : usr=0.10%, sys=7.73%, ctx=5880, 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=179360: Sat Jul 4 01:48:23 2026 read: IOPS=17, BW=68.7KiB/s (70.3kB/s)(6028KiB/87781msec) clat (msec): min=3, max=172, avg=24.18, stdev=20.39 lat (msec): min=3, max=172, avg=24.18, stdev=20.38 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 52], 95.00th=[ 66], | 99.00th=[ 107], 99.50th=[ 118], 99.90th=[ 157], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 8, max= 256, per=25.07%, avg=68.45, stdev=41.94, samples=173 iops : min= 2, max= 64, avg=16.64, stdev=10.57, samples=173 write: IOPS=17, BW=71.3KiB/s (73.0kB/s)(6260KiB/87781msec); 0 zone resets clat (msec): min=7, max=723, avg=32.63, stdev=27.83 lat (msec): min=7, max=723, avg=32.64, stdev=27.83 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 60], 95.00th=[ 75], | 99.00th=[ 109], 99.50th=[ 131], 99.90th=[ 167], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 208, per=24.81%, avg=70.95, stdev=41.09, samples=173 iops : min= 3, max= 52, avg=17.26, stdev=10.36, samples=173 lat (msec) : 4=0.03%, 10=11.65%, 20=34.47%, 50=39.52%, 100=12.89% lat (msec) : 250=1.40%, 750=0.03% cpu : usr=0.10%, sys=7.69%, ctx=5922, 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=179361: Sat Jul 4 01:48:23 2026 read: IOPS=17, BW=69.8KiB/s (71.4kB/s)(6052KiB/86750msec) clat (msec): min=4, max=159, avg=23.60, stdev=19.73 lat (msec): min=4, max=159, avg=23.60, stdev=19.73 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 35], 90.00th=[ 50], 95.00th=[ 64], | 99.00th=[ 101], 99.50th=[ 120], 99.90th=[ 153], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 7, max= 232, per=25.51%, avg=69.63, stdev=40.87, samples=171 iops : min= 1, max= 58, avg=16.93, stdev=10.32, samples=171 write: IOPS=17, BW=71.9KiB/s (73.6kB/s)(6236KiB/86750msec); 0 zone resets clat (msec): min=7, max=723, avg=32.56, stdev=26.73 lat (msec): min=7, max=723, avg=32.56, stdev=26.73 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 46], 90.00th=[ 58], 95.00th=[ 69], | 99.00th=[ 106], 99.50th=[ 128], 99.90th=[ 207], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 16, max= 208, per=25.08%, avg=71.73, stdev=39.58, samples=171 iops : min= 4, max= 52, avg=17.46, stdev= 9.96, samples=171 lat (msec) : 10=11.69%, 20=33.92%, 50=41.83%, 100=11.33%, 250=1.20% lat (msec) : 750=0.03% cpu : usr=0.12%, sys=7.87%, ctx=5962, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=274KiB/s (280kB/s), 67.7KiB/s-69.8KiB/s (69.3kB/s-71.4kB/s), io=23.4MiB (24.6MB), run=86750-87781msec WRITE: bw=286KiB/s (293kB/s), 71.3KiB/s-72.3KiB/s (73.0kB/s-74.1kB/s), io=24.6MiB (25.7MB), run=86750-87781msec 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=179393: Sat Jul 4 01:48:47 2026 read: IOPS=21, BW=340KiB/s (348kB/s)(5920KiB/17434msec) clat (usec): min=67, max=70497, avg=23501.64, stdev=12892.17 lat (usec): min=67, max=70499, avg=23502.73, stdev=12892.19 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 127], 10.00th=[ 9241], 20.00th=[14091], | 30.00th=[16909], 40.00th=[19530], 50.00th=[21627], 60.00th=[25560], | 70.00th=[28967], 80.00th=[33424], 90.00th=[40109], 95.00th=[45351], | 99.00th=[61080], 99.50th=[69731], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 95, max= 544, per=24.36%, avg=334.44, stdev=96.02, samples=34 iops : min= 5, max= 34, avg=20.32, stdev= 6.23, samples=34 write: IOPS=22, BW=365KiB/s (374kB/s)(6368KiB/17434msec); 0 zone resets clat (usec): min=1918, max=107838, avg=21669.98, stdev=17059.32 lat (usec): min=1920, max=107839, avg=21672.04, stdev=17059.29 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 45], 95.00th=[ 57], | 99.00th=[ 80], 99.50th=[ 100], 99.90th=[ 108], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 160, max= 608, per=25.11%, avg=362.82, stdev=98.03, samples=34 iops : min= 10, max= 38, avg=22.09, stdev= 6.10, samples=34 lat (usec) : 100=0.91%, 250=2.86%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.26%, 4=3.65%, 10=11.59%, 20=29.69%, 50=45.83% lat (msec) : 100=4.82%, 250=0.13% cpu : usr=0.13%, sys=21.38%, ctx=2593, 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=179394: Sat Jul 4 01:48:47 2026 read: IOPS=21, BW=339KiB/s (347kB/s)(5744KiB/16928msec) clat (usec): min=73, max=93803, avg=24593.76, stdev=13677.34 lat (usec): min=75, max=93803, avg=24595.63, stdev=13678.29 clat percentiles (usec): | 1.00th=[ 86], 5.00th=[ 137], 10.00th=[10552], 20.00th=[14484], | 30.00th=[17957], 40.00th=[21103], 50.00th=[23462], 60.00th=[26870], | 70.00th=[29754], 80.00th=[33817], 90.00th=[39584], 95.00th=[46400], | 99.00th=[64750], 99.50th=[88605], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 191, max= 512, per=24.72%, avg=339.36, stdev=86.62, samples=33 iops : min= 11, max= 32, avg=20.64, stdev= 5.46, samples=33 write: IOPS=24, BW=387KiB/s (396kB/s)(6544KiB/16928msec); 0 zone resets clat (usec): min=1363, max=81985, avg=19488.75, stdev=14223.94 lat (usec): min=1364, max=81988, avg=19490.66, stdev=14223.97 clat percentiles (usec): | 1.00th=[ 1991], 5.00th=[ 3654], 10.00th=[ 4686], 20.00th=[ 5932], | 30.00th=[10159], 40.00th=[13042], 50.00th=[15926], 60.00th=[20055], | 70.00th=[24511], 80.00th=[31327], 90.00th=[38536], 95.00th=[44303], | 99.00th=[66323], 99.50th=[71828], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 224, max= 672, per=26.71%, avg=385.97, stdev=100.00, samples=33 iops : min= 14, max= 42, avg=23.55, stdev= 6.35, samples=33 lat (usec) : 100=0.78%, 250=2.60%, 500=0.13% lat (msec) : 2=0.78%, 4=2.47%, 10=13.28%, 20=29.04%, 50=47.79% lat (msec) : 100=3.12% cpu : usr=0.14%, sys=21.71%, ctx=2568, 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=179395: Sat Jul 4 01:48:47 2026 read: IOPS=22, BW=364KiB/s (373kB/s)(6256KiB/17182msec) clat (usec): min=54, max=111275, avg=23644.75, stdev=14887.66 lat (usec): min=55, max=111276, avg=23645.93, stdev=14887.66 clat percentiles (usec): | 1.00th=[ 79], 5.00th=[ 126], 10.00th=[ 314], 20.00th=[ 14222], | 30.00th=[ 16450], 40.00th=[ 19268], 50.00th=[ 21890], 60.00th=[ 25560], | 70.00th=[ 28443], 80.00th=[ 32900], 90.00th=[ 40109], 95.00th=[ 45351], | 99.00th=[ 76022], 99.50th=[ 91751], 99.90th=[111674], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 159, max= 670, per=26.61%, avg=365.35, stdev=101.28, samples=34 iops : min= 9, max= 41, avg=22.24, stdev= 6.44, samples=34 write: IOPS=21, BW=351KiB/s (359kB/s)(6032KiB/17182msec); 0 zone resets clat (usec): min=1227, max=111623, avg=20823.48, stdev=15936.34 lat (usec): min=1229, max=111626, avg=20825.93, stdev=15936.35 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 33], 90.00th=[ 43], 95.00th=[ 51], | 99.00th=[ 69], 99.50th=[ 93], 99.90th=[ 112], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 159, max= 541, per=24.10%, avg=348.24, stdev=95.61, samples=34 iops : min= 9, max= 33, avg=21.18, stdev= 6.06, samples=34 lat (usec) : 100=0.91%, 250=4.04%, 500=0.26%, 750=0.13% lat (msec) : 2=0.26%, 4=3.12%, 10=11.85%, 20=29.04%, 50=45.96% lat (msec) : 100=4.17%, 250=0.26% cpu : usr=0.10%, sys=21.17%, ctx=2632, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179396: Sat Jul 4 01:48:47 2026 read: IOPS=22, BW=353KiB/s (361kB/s)(6032KiB/17090msec) clat (usec): min=62, max=103242, avg=24679.20, stdev=15364.50 lat (usec): min=63, max=103243, avg=24680.39, stdev=15364.53 clat percentiles (usec): | 1.00th=[ 72], 5.00th=[ 124], 10.00th=[ 204], 20.00th=[ 14746], | 30.00th=[ 17433], 40.00th=[ 20055], 50.00th=[ 23200], 60.00th=[ 26346], | 70.00th=[ 30540], 80.00th=[ 35914], 90.00th=[ 41157], 95.00th=[ 50070], | 99.00th=[ 78119], 99.50th=[ 95945], 99.90th=[103285], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 159, max= 544, per=25.31%, avg=347.45, stdev=88.10, samples=33 iops : min= 9, max= 34, avg=21.12, stdev= 5.67, samples=33 write: IOPS=22, BW=366KiB/s (375kB/s)(6256KiB/17090msec); 0 zone resets clat (usec): min=1900, max=90968, avg=19820.53, stdev=15659.88 lat (usec): min=1901, max=90970, avg=19822.67, stdev=15659.92 clat percentiles (usec): | 1.00th=[ 2409], 5.00th=[ 3785], 10.00th=[ 4752], 20.00th=[ 6194], | 30.00th=[ 9503], 40.00th=[12649], 50.00th=[15533], 60.00th=[19006], | 70.00th=[23987], 80.00th=[31589], 90.00th=[43254], 95.00th=[51119], | 99.00th=[66847], 99.50th=[83362], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 191, max= 640, per=25.38%, avg=366.73, stdev=93.45, samples=33 iops : min= 11, max= 40, avg=22.33, stdev= 5.90, samples=33 lat (usec) : 100=1.17%, 250=3.91% lat (msec) : 2=0.26%, 4=2.60%, 10=13.80%, 20=30.21%, 50=42.71% lat (msec) : 100=5.21%, 250=0.13% cpu : usr=0.13%, sys=21.07%, ctx=2509, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1374KiB/s (1407kB/s), 339KiB/s-364KiB/s (347kB/s-373kB/s), io=23.4MiB (24.5MB), run=16928-17434msec WRITE: bw=1445KiB/s (1480kB/s), 351KiB/s-387KiB/s (359kB/s-396kB/s), io=24.6MiB (25.8MB), run=16928-17434msec fio: pid=179398, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=179397: Sat Jul 4 01:48:51 2026 read: IOPS=17, BW=281KiB/s (288kB/s)(5920KiB/21038msec) clat (usec): min=5737, max=98662, avg=22331.39, stdev=16390.55 lat (usec): min=5738, max=98664, avg=22332.64, stdev=16390.52 clat percentiles (usec): | 1.00th=[ 5932], 5.00th=[ 6980], 10.00th=[ 8160], 20.00th=[10290], | 30.00th=[12387], 40.00th=[14222], 50.00th=[16450], 60.00th=[19006], | 70.00th=[23725], 80.00th=[30278], 90.00th=[46924], 95.00th=[61080], | 99.00th=[76022], 99.50th=[77071], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 127, max= 702, per=25.48%, avg=274.71, stdev=141.79, samples=41 iops : min= 7, max= 43, avg=16.54, stdev= 8.80, samples=41 write: IOPS=18, BW=303KiB/s (310kB/s)(6368KiB/21038msec); 0 zone resets clat (msec): min=8, max=133, avg=31.70, stdev=18.75 lat (msec): min=8, max=133, avg=31.71, stdev=18.75 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 38], 80.00th=[ 45], 90.00th=[ 58], 95.00th=[ 69], | 99.00th=[ 100], 99.50th=[ 129], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 118, max= 736, per=26.52%, avg=299.73, stdev=145.09, samples=41 iops : min= 7, max= 46, avg=18.10, stdev= 9.05, samples=41 lat (msec) : 10=9.51%, 20=37.89%, 50=41.02%, 100=11.33%, 250=0.26% cpu : usr=0.11%, sys=9.55%, ctx=1608, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=179398: Sat Jul 4 01:48:51 2026 read: IOPS=15, BW=249KiB/s (255kB/s)(4848KiB/19501msec) clat (msec): min=4, max=117, avg=26.15, stdev=19.26 lat (msec): min=4, max=117, avg=26.15, stdev=19.26 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 38], 90.00th=[ 58], 95.00th=[ 68], | 99.00th=[ 91], 99.50th=[ 104], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 58, max= 701, per=23.00%, avg=247.92, stdev=121.64, samples=38 iops : min= 3, max= 43, avg=14.87, stdev= 7.62, samples=38 write: IOPS=17, BW=282KiB/s (289kB/s)(5504KiB/19501msec); 0 zone resets clat (msec): min=9, max=134, avg=33.46, stdev=18.30 lat (msec): min=9, max=134, avg=33.46, stdev=18.30 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 40], 80.00th=[ 48], 90.00th=[ 57], 95.00th=[ 68], | 99.00th=[ 100], 99.50th=[ 102], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 127, max= 672, per=24.12%, avg=272.50, stdev=115.11, samples=38 iops : min= 7, max= 42, avg=16.42, stdev= 7.28, samples=38 lat (msec) : 10=5.25%, 20=33.02%, 50=46.76%, 100=14.20%, 250=0.62% cpu : usr=0.12%, sys=9.17%, ctx=1268, majf=0, minf=21 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=304,344,0,0 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=179399: Sat Jul 4 01:48:51 2026 read: IOPS=18, BW=298KiB/s (305kB/s)(6256KiB/21027msec) clat (msec): min=5, max=100, avg=22.66, stdev=15.31 lat (msec): min=5, max=100, avg=22.66, stdev=15.31 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 34], 90.00th=[ 46], 95.00th=[ 56], | 99.00th=[ 69], 99.50th=[ 80], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 127, max= 830, per=27.52%, avg=296.63, stdev=163.75, samples=41 iops : min= 7, max= 51, avg=17.90, stdev=10.22, samples=41 write: IOPS=17, BW=287KiB/s (294kB/s)(6032KiB/21027msec); 0 zone resets clat (msec): min=8, max=130, avg=31.81, stdev=19.10 lat (msec): min=8, max=130, avg=31.82, stdev=19.10 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 46], 90.00th=[ 56], 95.00th=[ 67], | 99.00th=[ 122], 99.50th=[ 127], 99.90th=[ 131], 99.95th=[ 131], | 99.99th=[ 131] bw ( KiB/s): min= 127, max= 734, per=24.93%, avg=281.73, stdev=132.60, samples=41 iops : min= 7, max= 45, avg=16.98, stdev= 8.27, samples=41 lat (msec) : 10=8.59%, 20=37.63%, 50=43.10%, 100=9.90%, 250=0.78% cpu : usr=0.12%, sys=9.73%, ctx=1643, 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=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=179400: Sat Jul 4 01:48:51 2026 read: IOPS=17, BW=282KiB/s (289kB/s)(6032KiB/21378msec) clat (msec): min=4, max=113, avg=23.58, stdev=18.43 lat (msec): min=4, max=113, avg=23.58, stdev=18.43 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=[ 22], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 52], 95.00th=[ 62], | 99.00th=[ 96], 99.50th=[ 106], 99.90th=[ 114], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 95, max= 798, per=25.66%, avg=276.60, stdev=150.47, samples=42 iops : min= 5, max= 49, avg=16.64, stdev= 9.38, samples=42 write: IOPS=18, BW=293KiB/s (300kB/s)(6256KiB/21378msec); 0 zone resets clat (msec): min=9, max=128, avg=31.44, stdev=19.36 lat (msec): min=9, max=128, avg=31.45, stdev=19.36 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 44], 90.00th=[ 57], 95.00th=[ 69], | 99.00th=[ 118], 99.50th=[ 126], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 127, max= 862, per=25.55%, avg=288.69, stdev=146.80, samples=42 iops : min= 7, max= 53, avg=17.40, stdev= 9.17, samples=42 lat (msec) : 10=10.03%, 20=35.81%, 50=41.28%, 100=12.11%, 250=0.78% cpu : usr=0.11%, sys=9.44%, ctx=1573, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1078KiB/s (1104kB/s), 249KiB/s-298KiB/s (255kB/s-305kB/s), io=22.5MiB (23.6MB), run=19501-21378msec WRITE: bw=1130KiB/s (1157kB/s), 282KiB/s-303KiB/s (289kB/s-310kB/s), io=23.6MiB (24.7MB), run=19501-21378msec 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=179409: Sat Jul 4 01:49:01 2026 read: IOPS=2, BW=2978KiB/s (3049kB/s)(7168KiB/2407msec) clat (usec): min=1683, max=424204, avg=176849.54, stdev=127841.51 lat (usec): min=1684, max=424205, avg=176851.21, stdev=127841.78 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1680], 10.00th=[ 1680], 20.00th=[122160], | 30.00th=[125305], 40.00th=[125305], 50.00th=[181404], 60.00th=[185598], | 70.00th=[185598], 80.00th=[198181], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 2048, max= 6023, per=73.92%, avg=3881.67, stdev=2005.28, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2127KiB/s (2178kB/s)(5120KiB/2407msec); 0 zone resets clat (msec): min=150, max=279, avg=208.48, stdev=48.51 lat (msec): min=150, max=279, avg=208.56, stdev=48.51 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 211], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 2007, max= 4096, per=45.06%, avg=3312.67, stdev=1138.25, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (msec) : 2=8.33%, 250=75.00%, 500=16.67% cpu : usr=0.00%, sys=46.38%, ctx=440, 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=179410: Sat Jul 4 01:49:01 2026 read: IOPS=0, BW=543KiB/s (556kB/s)(2048KiB/3774msec) clat (msec): min=119, max=167, avg=143.53, stdev=34.37 lat (msec): min=119, max=167, avg=143.53, stdev=34.37 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 1771, max= 2027, per=36.16%, avg=1899.00, stdev=181.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2713KiB/s (2778kB/s)(10.0MiB/3774msec); 0 zone resets clat (msec): min=123, max=597, avg=341.34, stdev=140.45 lat (msec): min=123, max=597, avg=341.44, stdev=140.43 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 207], | 30.00th=[ 213], 40.00th=[ 309], 50.00th=[ 355], 60.00th=[ 363], | 70.00th=[ 372], 80.00th=[ 380], 90.00th=[ 502], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2007, max= 5953, per=40.62%, avg=2986.33, stdev=1622.45, samples=6 iops : min= 1, max= 5, avg= 2.33, stdev= 1.51, samples=6 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=42.46%, ctx=369, 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=179411: Sat Jul 4 01:49:01 2026 read: IOPS=2, BW=2515KiB/s (2575kB/s)(6144KiB/2443msec) clat (msec): min=104, max=454, avg=192.77, stdev=129.87 lat (msec): min=104, max=454, avg=192.77, stdev=129.87 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 2007, max= 5752, per=62.25%, avg=3269.00, stdev=2150.44, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=2, BW=2515KiB/s (2575kB/s)(6144KiB/2443msec); 0 zone resets clat (msec): min=106, max=340, avg=209.52, stdev=79.93 lat (msec): min=106, max=340, avg=209.71, stdev=79.97 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 1917, max= 4096, per=39.39%, avg=2895.25, stdev=1100.15, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 250=83.33%, 500=16.67% cpu : usr=0.00%, sys=49.02%, ctx=896, 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=179412: Sat Jul 4 01:49:01 2026 read: IOPS=1, BW=1313KiB/s (1344kB/s)(5120KiB/3900msec) clat (msec): min=74, max=231, avg=146.63, stdev=57.51 lat (msec): min=74, max=231, avg=146.63, stdev=57.51 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 165], 80.00th=[ 165], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 2027, max= 5953, per=75.99%, avg=3990.00, stdev=2776.10, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1838KiB/s (1882kB/s)(7168KiB/3900msec); 0 zone resets clat (msec): min=143, max=792, avg=441.03, stdev=262.38 lat (msec): min=144, max=792, avg=441.13, stdev=262.38 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 397], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 768], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1984, max= 4055, per=33.03%, avg=2428.40, stdev=909.71, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 0.84, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 1000=16.67% cpu : usr=0.00%, sys=33.52%, ctx=852, 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=5251KiB/s (5377kB/s), 543KiB/s-2978KiB/s (556kB/s-3049kB/s), io=20.0MiB (20.0MB), run=2407-3900msec WRITE: bw=7352KiB/s (7528kB/s), 1838KiB/s-2713KiB/s (1882kB/s-2778kB/s), io=28.0MiB (29.4MB), run=2407-3900msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179413: Sat Jul 4 01:49:01 2026 read: IOPS=1, BW=1859KiB/s (1904kB/s)(7168KiB/3855msec) clat (msec): min=69, max=459, avg=289.01, stdev=154.18 lat (msec): min=69, max=459, avg=289.01, stdev=154.18 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 109], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 334], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 422], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 1790, max= 2048, per=38.65%, avg=1972.50, stdev=111.90, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 write: IOPS=1, BW=1328KiB/s (1360kB/s)(5120KiB/3855msec); 0 zone resets clat (msec): min=206, max=381, avg=282.10, stdev=72.43 lat (msec): min=206, max=381, avg=282.22, stdev=72.43 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 249], 60.00th=[ 249], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1875, max= 4087, per=37.34%, avg=2668.33, stdev=1231.47, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=50.00% cpu : usr=0.05%, sys=18.47%, ctx=178, 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=179414: Sat Jul 4 01:49:01 2026 read: IOPS=0, BW=510KiB/s (523kB/s)(2048KiB/4012msec) clat (msec): min=80, max=337, avg=209.40, stdev=181.76 lat (msec): min=80, max=337, avg=209.40, stdev=181.77 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 82], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 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= 2043, max= 2048, per=40.08%, avg=2045.50, stdev= 3.54, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2552KiB/s (2614kB/s)(10.0MiB/4012msec); 0 zone resets clat (msec): min=85, max=755, avg=330.61, stdev=216.90 lat (msec): min=85, max=755, avg=330.71, stdev=216.90 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 207], 50.00th=[ 275], 60.00th=[ 300], | 70.00th=[ 380], 80.00th=[ 447], 90.00th=[ 592], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 2031, max= 4096, per=39.08%, avg=2792.60, stdev=1039.15, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=16.40%, ctx=318, 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=179415: Sat Jul 4 01:49:01 2026 read: IOPS=1, BW=1538KiB/s (1575kB/s)(6144KiB/3994msec) clat (msec): min=24, max=425, avg=132.09, stdev=149.73 lat (msec): min=24, max=425, avg=132.09, stdev=149.73 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 25], 10.00th=[ 25], 20.00th=[ 47], | 30.00th=[ 47], 40.00th=[ 54], 50.00th=[ 54], 60.00th=[ 104], | 70.00th=[ 140], 80.00th=[ 140], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2048, max= 6131, per=80.12%, avg=4089.50, stdev=2887.12, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1538KiB/s (1575kB/s)(6144KiB/3994msec); 0 zone resets clat (msec): min=202, max=875, avg=517.04, stdev=229.70 lat (msec): min=202, max=875, avg=517.13, stdev=229.69 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1875, max= 2048, per=27.98%, avg=1999.25, stdev=83.14, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 50=16.67%, 100=8.33%, 250=25.00%, 500=16.67%, 750=25.00% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=12.37%, ctx=105, 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=179416: Sat Jul 4 01:49:01 2026 read: IOPS=1, BW=1292KiB/s (1323kB/s)(5120KiB/3962msec) clat (msec): min=50, max=498, avg=249.00, stdev=228.89 lat (msec): min=50, max=498, avg=249.00, stdev=228.89 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 51], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 128], 60.00th=[ 128], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 4087, max= 4096, per=80.16%, avg=4091.50, stdev= 6.36, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1809KiB/s (1853kB/s)(7168KiB/3962msec); 0 zone resets clat (msec): min=61, max=753, avg=383.82, stdev=239.10 lat (msec): min=61, max=753, avg=383.92, stdev=239.08 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 188], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 330], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 617], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 2031, max= 4087, per=41.69%, avg=2979.00, stdev=1093.55, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=25.00%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=13.68%, ctx=100, 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=5105KiB/s (5227kB/s), 510KiB/s-1859KiB/s (523kB/s-1904kB/s), io=20.0MiB (20.0MB), run=3855-4012msec WRITE: bw=7147KiB/s (7318kB/s), 1328KiB/s-2552KiB/s (1360kB/s-2614kB/s), io=28.0MiB (29.4MB), run=3855-4012msec 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=179423: Sat Jul 4 01:49:10 2026 read: IOPS=1, BW=5737KiB/s (5874kB/s)(12.0MiB/2142msec) clat (msec): min=400, max=1151, avg=695.87, stdev=400.66 lat (msec): min=400, max=1151, avg=695.87, stdev=400.66 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, 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=0.00%, sys=11.02%, ctx=105, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179424: Sat Jul 4 01:49:10 2026 read: IOPS=0, BW=1902KiB/s (1948kB/s)(4096KiB/2153msec) clat (nsec): min=690623k, max=690623k, avg=690622634.00, stdev= 0.00 lat (nsec): min=690626k, max=690626k, avg=690626232.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 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= 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=3805KiB/s (3896kB/s)(8192KiB/2153msec); 0 zone resets clat (msec): min=203, max=1233, avg=718.65, stdev=728.65 lat (msec): min=203, max=1234, avg=719.10, stdev=728.51 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8159, max= 8159, per=53.61%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=13.38%, ctx=56, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179425: Sat Jul 4 01:49:10 2026 write: IOPS=1, BW=7709KiB/s (7894kB/s)(12.0MiB/1594msec); 0 zone resets clat (msec): min=147, max=1202, avg=525.07, stdev=588.29 lat (msec): min=147, max=1203, avg=525.50, stdev=588.20 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min=15058, max=15058, per=98.94%, avg=15058.00, 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=0.06%, sys=16.64%, ctx=68, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179426: Sat Jul 4 01:49:10 2026 write: IOPS=1, BW=6397KiB/s (6550kB/s)(12.0MiB/1921msec); 0 zone resets clat (msec): min=361, max=1067, avg=626.86, stdev=384.43 lat (msec): min=362, max=1068, avg=627.17, stdev=384.49 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 5712, max= 8159, per=45.57%, avg=6935.50, stdev=1730.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.05%, sys=18.28%, ctx=84, 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=7610KiB/s (7792kB/s), 1902KiB/s-5737KiB/s (1948kB/s-5874kB/s), io=16.0MiB (16.8MB), run=2142-2153msec WRITE: bw=14.9MiB/s (15.6MB/s), 3805KiB/s-7709KiB/s (3896kB/s-7894kB/s), io=32.0MiB (33.6MB), run=1594-2153msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179427: Sat Jul 4 01:49:10 2026 read: IOPS=1, BW=7220KiB/s (7393kB/s)(12.0MiB/1702msec) clat (msec): min=515, max=576, avg=554.81, stdev=33.87 lat (msec): min=515, max=576, avg=554.81, stdev=33.87 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=48.21%, ctx=1120, 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=179428: Sat Jul 4 01:49:10 2026 read: IOPS=0, BW=1744KiB/s (1786kB/s)(4096KiB/2349msec) clat (nsec): min=479495k, max=479495k, avg=479494667.00, stdev= 0.00 lat (nsec): min=479498k, max=479498k, avg=479498405.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 5665, max= 5665, per=81.23%, avg=5665.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3487KiB/s (3571kB/s)(8192KiB/2349msec); 0 zone resets clat (msec): min=182, max=1614, avg=898.06, stdev=1012.66 lat (msec): min=182, max=1614, avg=898.42, stdev=1012.59 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8175, max= 8175, per=58.61%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.04%, sys=10.26%, ctx=353, 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=179429: Sat Jul 4 01:49:10 2026 write: IOPS=1, BW=5240KiB/s (5366kB/s)(12.0MiB/2345msec); 0 zone resets clat (msec): min=229, max=1667, avg=769.32, stdev=783.10 lat (msec): min=230, max=1667, avg=769.64, stdev=782.99 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8159, max= 8175, per=58.55%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.09%, sys=13.10%, ctx=81, 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=179430: Sat Jul 4 01:49:10 2026 write: IOPS=1, BW=5838KiB/s (5978kB/s)(12.0MiB/2105msec); 0 zone resets clat (msec): min=513, max=911, avg=683.05, stdev=205.20 lat (msec): min=513, max=911, avg=683.31, stdev=205.13 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8159, max= 8175, per=58.55%, avg=8167.00, stdev=11.31, 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=13.55%, ctx=86, 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=6975KiB/s (7142kB/s), 1744KiB/s-7220KiB/s (1786kB/s-7393kB/s), io=16.0MiB (16.8MB), run=1702-2349msec WRITE: bw=13.6MiB/s (14.3MB/s), 3487KiB/s-5838KiB/s (3571kB/s-5978kB/s), io=32.0MiB (33.6MB), run=2105-2349msec