== sanity test 398b: DIO and buffer IO race ============== 11:34:05 (1786116845) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.48959 s, 20.2 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=185729: Fri Aug 7 11:35:00 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(5992KiB/46556msec) clat (usec): min=74, max=605006, avg=17008.43, stdev=17334.76 lat (usec): min=74, max=605006, avg=17008.99, stdev=17334.79 clat percentiles (usec): | 1.00th=[ 116], 5.00th=[ 6915], 10.00th=[ 8160], 20.00th=[ 9765], | 30.00th=[ 11600], 40.00th=[ 13566], 50.00th=[ 15270], 60.00th=[ 17433], | 70.00th=[ 19530], 80.00th=[ 21890], 90.00th=[ 27132], 95.00th=[ 32375], | 99.00th=[ 44303], 99.50th=[ 51119], 99.90th=[ 65274], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 56, max= 223, per=25.31%, avg=128.60, stdev=33.64, samples=92 iops : min= 14, max= 55, avg=31.77, stdev= 8.38, samples=92 write: IOPS=33, BW=135KiB/s (138kB/s)(6296KiB/46556msec); 0 zone resets clat (usec): min=675, max=88276, avg=13281.82, stdev=10059.38 lat (usec): min=676, max=88276, avg=13282.63, stdev=10059.74 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 2606], 10.00th=[ 2999], 20.00th=[ 3884], | 30.00th=[ 6783], 40.00th=[ 9241], 50.00th=[11338], 60.00th=[13435], | 70.00th=[16319], 80.00th=[20317], 90.00th=[26084], 95.00th=[32375], | 99.00th=[47449], 99.50th=[50594], 99.90th=[70779], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 39, max= 200, per=25.42%, avg=135.24, stdev=33.41, samples=92 iops : min= 9, max= 50, avg=33.43, stdev= 8.37, samples=92 lat (usec) : 100=0.36%, 250=0.62%, 500=0.03%, 750=0.16%, 1000=0.26% lat (msec) : 2=0.59%, 4=9.60%, 10=21.06%, 20=43.42%, 50=23.31% lat (msec) : 100=0.55%, 750=0.03% cpu : usr=0.10%, sys=25.90%, ctx=9606, 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=185730: Fri Aug 7 11:35:00 2026 read: IOPS=31, BW=127KiB/s (131kB/s)(5940KiB/46609msec) clat (usec): min=28, max=615977, avg=16824.74, stdev=17765.23 lat (usec): min=29, max=615977, avg=16825.33, stdev=17765.25 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 6915], 10.00th=[ 8160], 20.00th=[ 9634], | 30.00th=[ 11207], 40.00th=[ 13042], 50.00th=[ 15008], 60.00th=[ 16909], | 70.00th=[ 19006], 80.00th=[ 21627], 90.00th=[ 26870], 95.00th=[ 32900], | 99.00th=[ 46400], 99.50th=[ 50070], 99.90th=[ 73925], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 46, max= 191, per=25.02%, avg=127.10, stdev=33.37, samples=92 iops : min= 11, max= 47, avg=31.39, stdev= 8.29, samples=92 write: IOPS=34, BW=136KiB/s (139kB/s)(6348KiB/46609msec); 0 zone resets clat (usec): min=678, max=63257, avg=13512.48, stdev=10106.18 lat (usec): min=678, max=63258, avg=13513.12, stdev=10106.24 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 2606], 10.00th=[ 3064], 20.00th=[ 3851], | 30.00th=[ 6915], 40.00th=[ 9110], 50.00th=[10945], 60.00th=[13566], | 70.00th=[16909], 80.00th=[21627], 90.00th=[27395], 95.00th=[32900], | 99.00th=[45876], 99.50th=[50594], 99.90th=[60031], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 64, max= 232, per=25.42%, avg=135.25, stdev=36.97, samples=92 iops : min= 16, max= 58, avg=33.43, stdev= 9.27, samples=92 lat (usec) : 50=0.13%, 100=0.42%, 250=0.42%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.36% lat (msec) : 2=0.91%, 4=9.60%, 10=21.74%, 20=42.12%, 50=23.57% lat (msec) : 100=0.52%, 750=0.03% cpu : usr=0.10%, sys=25.62%, ctx=9432, 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=185731: Fri Aug 7 11:35:00 2026 read: IOPS=31, BW=128KiB/s (131kB/s)(6028KiB/47204msec) clat (usec): min=74, max=608313, avg=17100.87, stdev=17493.67 lat (usec): min=74, max=608314, avg=17101.46, stdev=17493.68 clat percentiles (usec): | 1.00th=[ 111], 5.00th=[ 6783], 10.00th=[ 8094], 20.00th=[ 9896], | 30.00th=[ 11469], 40.00th=[ 13435], 50.00th=[ 15401], 60.00th=[ 17433], | 70.00th=[ 19530], 80.00th=[ 22414], 90.00th=[ 27132], 95.00th=[ 34341], | 99.00th=[ 46924], 99.50th=[ 51643], 99.90th=[ 66847], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 31, max= 224, per=24.85%, avg=126.22, stdev=37.58, samples=93 iops : min= 7, max= 56, avg=31.17, stdev= 9.44, samples=93 write: IOPS=33, BW=133KiB/s (136kB/s)(6260KiB/47204msec); 0 zone resets clat (usec): min=664, max=70435, avg=13572.61, stdev=10216.37 lat (usec): min=665, max=70436, avg=13573.33, stdev=10216.42 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 2704], 10.00th=[ 3032], 20.00th=[ 3851], | 30.00th=[ 6980], 40.00th=[ 9241], 50.00th=[11338], 60.00th=[13698], | 70.00th=[16712], 80.00th=[20579], 90.00th=[27657], 95.00th=[33817], | 99.00th=[47973], 99.50th=[50594], 99.90th=[59507], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 64, max= 200, per=24.58%, avg=130.74, stdev=32.62, samples=93 iops : min= 16, max= 50, avg=32.31, stdev= 8.12, samples=93 lat (usec) : 100=0.39%, 250=0.72%, 500=0.03%, 750=0.07%, 1000=0.13% lat (msec) : 2=0.81%, 4=9.41%, 10=20.41%, 20=43.68%, 50=23.67% lat (msec) : 100=0.65%, 750=0.03% cpu : usr=0.08%, sys=25.75%, ctx=9689, 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=185732: Fri Aug 7 11:35:00 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(6052KiB/46915msec) clat (usec): min=26, max=100966, avg=16478.71, stdev=9140.50 lat (usec): min=27, max=100967, avg=16479.26, stdev=9140.52 clat percentiles (usec): | 1.00th=[ 96], 5.00th=[ 6980], 10.00th=[ 8160], 20.00th=[ 9896], | 30.00th=[ 11338], 40.00th=[ 12780], 50.00th=[ 14746], 60.00th=[ 16712], | 70.00th=[ 18744], 80.00th=[ 21627], 90.00th=[ 26608], 95.00th=[ 32900], | 99.00th=[ 47973], 99.50th=[ 57410], 99.90th=[ 84411], 99.95th=[101188], | 99.99th=[101188] bw ( KiB/s): min= 47, max= 208, per=25.35%, avg=128.80, stdev=34.14, samples=93 iops : min= 11, max= 52, avg=31.82, stdev= 8.60, samples=93 write: IOPS=33, BW=133KiB/s (136kB/s)(6236KiB/46915msec); 0 zone resets clat (usec): min=758, max=620322, avg=13989.75, stdev=18291.75 lat (usec): min=758, max=620323, avg=13990.45, stdev=18291.81 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 2704], 10.00th=[ 3064], 20.00th=[ 4113], | 30.00th=[ 6915], 40.00th=[ 9372], 50.00th=[ 11469], 60.00th=[ 13960], | 70.00th=[ 17171], 80.00th=[ 21627], 90.00th=[ 26608], 95.00th=[ 33162], | 99.00th=[ 46400], 99.50th=[ 51119], 99.90th=[ 63177], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 48, max= 224, per=24.92%, avg=132.56, stdev=33.93, samples=93 iops : min= 12, max= 56, avg=32.76, stdev= 8.46, samples=93 lat (usec) : 50=0.03%, 100=0.55%, 250=0.52%, 1000=0.29% lat (msec) : 2=0.75%, 4=8.92%, 10=20.83%, 20=44.24%, 50=23.11% lat (msec) : 100=0.68%, 250=0.03%, 750=0.03% cpu : usr=0.09%, sys=25.64%, ctx=9516, 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=509KiB/s (521kB/s), 127KiB/s-129KiB/s (131kB/s-132kB/s), io=23.4MiB (24.6MB), run=46556-47204msec WRITE: bw=533KiB/s (545kB/s), 133KiB/s-136KiB/s (136kB/s-139kB/s), io=24.6MiB (25.7MB), run=46556-47204msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185735: Fri Aug 7 11:35:06 2026 read: IOPS=28, BW=114KiB/s (117kB/s)(5992KiB/52525msec) clat (msec): min=2, max=634, avg=15.60, stdev=20.31 lat (msec): min=2, max=634, avg=15.61, stdev=20.31 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 61], 99.50th=[ 68], 99.90th=[ 111], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 31, max= 392, per=25.14%, avg=114.41, stdev=78.70, samples=103 iops : min= 7, max= 98, avg=28.25, stdev=19.79, samples=103 write: IOPS=29, BW=120KiB/s (123kB/s)(6296KiB/52525msec); 0 zone resets clat (usec): min=3946, max=90528, avg=18485.41, stdev=12542.66 lat (usec): min=3946, max=90529, avg=18486.12, stdev=12542.72 clat percentiles (usec): | 1.00th=[ 4883], 5.00th=[ 5473], 10.00th=[ 5997], 20.00th=[ 7111], | 30.00th=[ 9110], 40.00th=[12125], 50.00th=[15664], 60.00th=[19006], | 70.00th=[23200], 80.00th=[27919], 90.00th=[35390], 95.00th=[42206], | 99.00th=[58459], 99.50th=[68682], 99.90th=[88605], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 31, max= 408, per=25.14%, avg=119.69, stdev=79.57, samples=103 iops : min= 7, max= 102, avg=29.57, stdev=20.04, samples=103 lat (msec) : 4=1.89%, 10=36.82%, 20=29.88%, 50=29.17%, 100=2.18% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.06%, sys=14.35%, ctx=6181, 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=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=185736: Fri Aug 7 11:35:06 2026 read: IOPS=28, BW=113KiB/s (116kB/s)(5940KiB/52613msec) clat (msec): min=2, max=615, avg=15.50, stdev=19.86 lat (msec): min=2, max=615, avg=15.50, stdev=19.86 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 59], 99.50th=[ 70], 99.90th=[ 121], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 23, max= 424, per=24.82%, avg=112.92, stdev=80.82, samples=103 iops : min= 5, max= 106, avg=27.88, stdev=20.34, samples=103 write: IOPS=30, BW=121KiB/s (124kB/s)(6348KiB/52613msec); 0 zone resets clat (usec): min=3849, max=98071, avg=18623.04, stdev=13211.80 lat (usec): min=3850, max=98072, avg=18623.74, stdev=13211.86 clat percentiles (usec): | 1.00th=[ 4686], 5.00th=[ 5538], 10.00th=[ 5932], 20.00th=[ 6915], | 30.00th=[ 8848], 40.00th=[11731], 50.00th=[14877], 60.00th=[19006], | 70.00th=[23462], 80.00th=[27919], 90.00th=[35914], 95.00th=[43779], | 99.00th=[64750], 99.50th=[71828], 99.90th=[88605], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 47, max= 392, per=25.16%, avg=119.77, stdev=79.30, samples=103 iops : min= 11, max= 98, avg=29.59, stdev=19.94, samples=103 lat (msec) : 4=2.02%, 10=36.26%, 20=29.92%, 50=29.39%, 100=2.34% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.07%, sys=14.20%, ctx=6162, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185737: Fri Aug 7 11:35:06 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(6028KiB/52351msec) clat (usec): min=2600, max=72369, avg=14842.52, stdev=11570.87 lat (usec): min=2601, max=72370, avg=14843.30, stdev=11570.90 clat percentiles (usec): | 1.00th=[ 3392], 5.00th=[ 4178], 10.00th=[ 4490], 20.00th=[ 5211], | 30.00th=[ 6915], 40.00th=[ 9241], 50.00th=[11338], 60.00th=[13566], | 70.00th=[17171], 80.00th=[22938], 90.00th=[30802], 95.00th=[39584], | 99.00th=[53740], 99.50th=[61080], 99.90th=[69731], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 39, max= 384, per=25.47%, avg=115.88, stdev=81.29, samples=103 iops : min= 9, max= 96, avg=28.62, stdev=20.46, samples=103 write: IOPS=29, BW=120KiB/s (122kB/s)(6260KiB/52351msec); 0 zone resets clat (msec): min=4, max=608, avg=19.13, stdev=19.71 lat (msec): min=4, max=608, avg=19.13, stdev=19.71 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 28], 90.00th=[ 37], 95.00th=[ 44], | 99.00th=[ 61], 99.50th=[ 75], 99.90th=[ 97], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 40, max= 384, per=25.22%, avg=120.07, stdev=77.25, samples=103 iops : min= 10, max= 96, avg=29.67, stdev=19.44, samples=103 lat (msec) : 4=1.27%, 10=35.87%, 20=31.90%, 50=28.84%, 100=2.08% lat (msec) : 750=0.03% cpu : usr=0.07%, sys=14.36%, ctx=6270, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185738: Fri Aug 7 11:35:06 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(6052KiB/52742msec) clat (msec): min=2, max=115, avg=15.33, stdev=12.30 lat (msec): min=2, max=115, avg=15.33, stdev=12.31 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 25], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 54], 99.50th=[ 63], 99.90th=[ 97], 99.95th=[ 116], | 99.99th=[ 116] bw ( KiB/s): min= 16, max= 424, per=25.32%, avg=115.22, stdev=80.85, samples=104 iops : min= 4, max= 106, avg=28.46, stdev=20.34, samples=104 write: IOPS=29, BW=118KiB/s (121kB/s)(6236KiB/52742msec); 0 zone resets clat (msec): min=3, max=622, avg=18.93, stdev=20.05 lat (msec): min=3, max=622, avg=18.93, stdev=20.05 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 36], 95.00th=[ 43], | 99.00th=[ 62], 99.50th=[ 69], 99.90th=[ 102], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 31, max= 400, per=24.92%, avg=118.61, stdev=82.47, samples=104 iops : min= 7, max= 100, avg=29.31, stdev=20.74, samples=104 lat (msec) : 4=2.67%, 10=36.56%, 20=28.35%, 50=30.27%, 100=2.05% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.09%, sys=14.03%, ctx=6160, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=455KiB/s (466kB/s), 113KiB/s-115KiB/s (116kB/s-118kB/s), io=23.4MiB (24.6MB), run=52351-52742msec WRITE: bw=477KiB/s (488kB/s), 118KiB/s-121KiB/s (121kB/s-124kB/s), io=24.6MiB (25.7MB), run=52351-52742msec 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=185762: Fri Aug 7 11:35:26 2026 read: IOPS=25, BW=409KiB/s (419kB/s)(5920KiB/14469msec) clat (usec): min=59, max=92205, avg=19607.58, stdev=10638.81 lat (usec): min=60, max=92206, avg=19608.26, stdev=10638.79 clat percentiles (usec): | 1.00th=[ 99], 5.00th=[ 7308], 10.00th=[ 9372], 20.00th=[11863], | 30.00th=[14091], 40.00th=[16057], 50.00th=[18220], 60.00th=[20317], | 70.00th=[22676], 80.00th=[26084], 90.00th=[32113], 95.00th=[38536], | 99.00th=[52691], 99.50th=[66323], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 223, max= 638, per=24.85%, avg=404.86, stdev=108.93, samples=28 iops : min= 13, max= 39, avg=24.86, stdev= 6.88, samples=28 write: IOPS=27, BW=440KiB/s (451kB/s)(6368KiB/14469msec); 0 zone resets clat (usec): min=983, max=60689, avg=17927.88, stdev=11717.79 lat (usec): min=984, max=60690, avg=17930.24, stdev=11716.48 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 4047], 10.00th=[ 4555], 20.00th=[ 6783], | 30.00th=[10159], 40.00th=[12911], 50.00th=[15401], 60.00th=[19006], | 70.00th=[22152], 80.00th=[28443], 90.00th=[34341], 95.00th=[40109], | 99.00th=[54789], 99.50th=[57934], 99.90th=[60556], 99.95th=[60556], | 99.99th=[60556] bw ( KiB/s): min= 96, max= 640, per=25.65%, avg=439.64, stdev=150.21, samples=28 iops : min= 6, max= 40, avg=27.04, stdev= 9.37, samples=28 lat (usec) : 100=0.52%, 250=1.82%, 1000=0.13% lat (msec) : 2=0.39%, 4=1.82%, 10=16.28%, 20=39.71%, 50=37.76% lat (msec) : 100=1.56% cpu : usr=0.10%, sys=27.56%, ctx=3162, 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=185763: Fri Aug 7 11:35:26 2026 read: IOPS=24, BW=391KiB/s (400kB/s)(5744KiB/14697msec) clat (usec): min=72, max=67011, avg=19753.25, stdev=10525.07 lat (usec): min=73, max=67012, avg=19753.88, stdev=10525.10 clat percentiles (usec): | 1.00th=[ 91], 5.00th=[ 5473], 10.00th=[ 9765], 20.00th=[12649], | 30.00th=[14091], 40.00th=[15795], 50.00th=[18220], 60.00th=[19792], | 70.00th=[22414], 80.00th=[27132], 90.00th=[33424], 95.00th=[40109], | 99.00th=[56361], 99.50th=[61604], 99.90th=[66847], 99.95th=[66847], | 99.99th=[66847] bw ( KiB/s): min= 160, max= 608, per=23.89%, avg=389.17, stdev=117.38, samples=29 iops : min= 10, max= 38, avg=23.86, stdev= 7.41, samples=29 write: IOPS=27, BW=445KiB/s (456kB/s)(6544KiB/14697msec); 0 zone resets clat (usec): min=1138, max=67318, avg=18452.02, stdev=12826.84 lat (usec): min=1138, max=67319, avg=18453.00, stdev=12826.98 clat percentiles (usec): | 1.00th=[ 2311], 5.00th=[ 4555], 10.00th=[ 4948], 20.00th=[ 7373], | 30.00th=[ 9765], 40.00th=[12387], 50.00th=[15926], 60.00th=[18744], | 70.00th=[22414], 80.00th=[27919], 90.00th=[36963], 95.00th=[44303], | 99.00th=[60031], 99.50th=[64226], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 191, max= 800, per=25.88%, avg=443.59, stdev=129.72, samples=29 iops : min= 11, max= 50, avg=27.28, stdev= 8.17, samples=29 lat (usec) : 100=0.91%, 250=1.17% lat (msec) : 2=0.39%, 4=1.04%, 10=18.10%, 20=41.02%, 50=35.16% lat (msec) : 100=2.21% cpu : usr=0.08%, sys=27.80%, ctx=3084, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185764: Fri Aug 7 11:35:26 2026 read: IOPS=26, BW=429KiB/s (439kB/s)(6256KiB/14585msec) clat (usec): min=88, max=73896, avg=20554.09, stdev=11789.88 lat (usec): min=88, max=73897, avg=20554.71, stdev=11789.97 clat percentiles (usec): | 1.00th=[ 103], 5.00th=[ 5800], 10.00th=[ 9503], 20.00th=[11600], | 30.00th=[14222], 40.00th=[16188], 50.00th=[18220], 60.00th=[20841], | 70.00th=[24249], 80.00th=[27919], 90.00th=[34341], 95.00th=[43779], | 99.00th=[62129], 99.50th=[68682], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 160, max= 672, per=26.06%, avg=424.50, stdev=108.24, samples=28 iops : min= 10, max= 42, avg=26.07, stdev= 6.87, samples=28 write: IOPS=25, BW=414KiB/s (424kB/s)(6032KiB/14585msec); 0 zone resets clat (usec): min=1046, max=72647, avg=17292.93, stdev=10909.93 lat (usec): min=1047, max=72649, avg=17293.91, stdev=10910.01 clat percentiles (usec): | 1.00th=[ 3228], 5.00th=[ 4293], 10.00th=[ 4948], 20.00th=[ 7963], | 30.00th=[10159], 40.00th=[12649], 50.00th=[15401], 60.00th=[17433], | 70.00th=[21365], 80.00th=[26084], 90.00th=[31589], 95.00th=[38011], | 99.00th=[50594], 99.50th=[66847], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 128, max= 640, per=23.25%, avg=398.50, stdev=148.43, samples=28 iops : min= 8, max= 40, avg=24.46, stdev= 9.23, samples=28 lat (usec) : 100=0.26%, 250=2.21% lat (msec) : 2=0.26%, 4=1.17%, 10=17.06%, 20=41.02%, 50=36.07% lat (msec) : 100=1.95% cpu : usr=0.10%, sys=27.32%, ctx=3092, 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=185765: Fri Aug 7 11:35:26 2026 read: IOPS=26, BW=426KiB/s (436kB/s)(6032KiB/14158msec) clat (usec): min=59, max=64779, avg=20002.82, stdev=10658.14 lat (usec): min=60, max=64780, avg=20003.40, stdev=10658.22 clat percentiles (usec): | 1.00th=[ 83], 5.00th=[ 151], 10.00th=[ 9110], 20.00th=[12125], | 30.00th=[13960], 40.00th=[16712], 50.00th=[19006], 60.00th=[20841], | 70.00th=[23725], 80.00th=[27657], 90.00th=[34341], 95.00th=[38536], | 99.00th=[56361], 99.50th=[57934], 99.90th=[64750], 99.95th=[64750], | 99.99th=[64750] bw ( KiB/s): min= 192, max= 606, per=25.93%, avg=422.41, stdev=102.44, samples=27 iops : min= 12, max= 37, avg=25.96, stdev= 6.34, samples=27 write: IOPS=27, BW=442KiB/s (452kB/s)(6256KiB/14158msec); 0 zone resets clat (usec): min=2331, max=69866, avg=16737.50, stdev=10383.68 lat (usec): min=2332, max=69868, avg=16738.53, stdev=10383.76 clat percentiles (usec): | 1.00th=[ 3425], 5.00th=[ 4293], 10.00th=[ 5080], 20.00th=[ 8094], | 30.00th=[10159], 40.00th=[12256], 50.00th=[14353], 60.00th=[17171], | 70.00th=[20579], 80.00th=[24511], 90.00th=[30278], 95.00th=[36439], | 99.00th=[49546], 99.50th=[55837], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 223, max= 896, per=25.78%, avg=441.89, stdev=162.57, samples=27 iops : min= 13, max= 56, avg=27.19, stdev=10.24, samples=27 lat (usec) : 100=0.91%, 250=1.82%, 500=0.13% lat (msec) : 4=1.56%, 10=16.54%, 20=41.02%, 50=37.11%, 100=0.91% cpu : usr=0.07%, sys=28.66%, ctx=3106, 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=1630KiB/s (1669kB/s), 391KiB/s-429KiB/s (400kB/s-439kB/s), io=23.4MiB (24.5MB), run=14158-14697msec WRITE: bw=1715KiB/s (1756kB/s), 414KiB/s-445KiB/s (424kB/s-456kB/s), io=24.6MiB (25.8MB), run=14158-14697msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185757: Fri Aug 7 11:35:27 2026 read: IOPS=23, BW=374KiB/s (383kB/s)(5920KiB/15814msec) clat (usec): min=2460, max=88943, avg=18131.58, stdev=14376.44 lat (usec): min=2461, max=88944, avg=18132.23, stdev=14376.50 clat percentiles (usec): | 1.00th=[ 2606], 5.00th=[ 4752], 10.00th=[ 5473], 20.00th=[ 7504], | 30.00th=[ 9634], 40.00th=[11076], 50.00th=[13435], 60.00th=[16319], | 70.00th=[20055], 80.00th=[26346], 90.00th=[38011], 95.00th=[47973], | 99.00th=[74974], 99.50th=[85459], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 190, max= 1120, per=23.88%, avg=361.55, stdev=208.65, samples=31 iops : min= 11, max= 70, avg=21.97, stdev=13.21, samples=31 write: IOPS=25, BW=403KiB/s (412kB/s)(6368KiB/15814msec); 0 zone resets clat (msec): min=4, max=100, avg=22.79, stdev=15.12 lat (msec): min=4, max=100, avg=22.79, stdev=15.12 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 35], 90.00th=[ 44], 95.00th=[ 52], | 99.00th=[ 71], 99.50th=[ 81], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 159, max= 1184, per=24.77%, avg=394.52, stdev=232.62, samples=31 iops : min= 9, max= 74, avg=24.03, stdev=14.75, samples=31 lat (msec) : 4=0.91%, 10=25.52%, 20=34.11%, 50=34.64%, 100=4.69% lat (msec) : 250=0.13% cpu : usr=0.07%, sys=14.63%, ctx=1829, 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=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=185758: Fri Aug 7 11:35:27 2026 read: IOPS=22, BW=364KiB/s (373kB/s)(5744KiB/15788msec) clat (usec): min=3782, max=63404, avg=18540.09, stdev=12664.20 lat (usec): min=3783, max=63404, avg=18540.70, stdev=12664.28 clat percentiles (usec): | 1.00th=[ 4228], 5.00th=[ 5276], 10.00th=[ 5997], 20.00th=[ 8094], | 30.00th=[10683], 40.00th=[12256], 50.00th=[14615], 60.00th=[17433], | 70.00th=[21627], 80.00th=[27395], 90.00th=[39060], 95.00th=[44303], | 99.00th=[60031], 99.50th=[61604], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 127, max= 1056, per=23.78%, avg=360.06, stdev=184.96, samples=31 iops : min= 7, max= 66, avg=21.87, stdev=11.73, samples=31 write: IOPS=25, BW=414KiB/s (424kB/s)(6544KiB/15788msec); 0 zone resets clat (usec): min=4877, max=82830, avg=22286.78, stdev=14615.44 lat (usec): min=4878, max=82831, avg=22288.19, stdev=14615.82 clat percentiles (usec): | 1.00th=[ 5211], 5.00th=[ 6259], 10.00th=[ 6849], 20.00th=[ 9372], | 30.00th=[12256], 40.00th=[15139], 50.00th=[18744], 60.00th=[23462], | 70.00th=[28181], 80.00th=[32900], 90.00th=[40633], 95.00th=[49546], | 99.00th=[72877], 99.50th=[78119], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 96, max= 1312, per=25.42%, avg=404.97, stdev=254.30, samples=31 iops : min= 6, max= 82, avg=24.68, stdev=16.08, samples=31 lat (msec) : 4=0.13%, 10=24.61%, 20=35.16%, 50=36.20%, 100=3.91% cpu : usr=0.08%, sys=14.50%, ctx=1831, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185759: Fri Aug 7 11:35:27 2026 read: IOPS=24, BW=396KiB/s (406kB/s)(6256KiB/15783msec) clat (usec): min=3161, max=88779, avg=18238.93, stdev=13734.17 lat (usec): min=3161, max=88780, avg=18239.62, stdev=13734.26 clat percentiles (usec): | 1.00th=[ 3949], 5.00th=[ 4817], 10.00th=[ 5538], 20.00th=[ 7898], | 30.00th=[ 9765], 40.00th=[11207], 50.00th=[13698], 60.00th=[16712], | 70.00th=[20317], 80.00th=[28181], 90.00th=[36439], 95.00th=[44827], | 99.00th=[68682], 99.50th=[78119], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 1376, per=26.01%, avg=393.77, stdev=254.43, samples=31 iops : min= 9, max= 86, avg=24.00, stdev=16.11, samples=31 write: IOPS=23, BW=382KiB/s (391kB/s)(6032KiB/15783msec); 0 zone resets clat (msec): min=5, max=100, avg=22.88, stdev=14.68 lat (msec): min=5, max=100, avg=22.88, stdev=14.68 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 27], 80.00th=[ 35], 90.00th=[ 42], 95.00th=[ 50], | 99.00th=[ 79], 99.50th=[ 90], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 159, max= 1024, per=23.44%, avg=373.39, stdev=189.44, samples=31 iops : min= 9, max= 64, avg=22.71, stdev=12.02, samples=31 lat (msec) : 4=0.65%, 10=25.52%, 20=33.46%, 50=36.20%, 100=4.04% lat (msec) : 250=0.13% cpu : usr=0.04%, sys=14.81%, ctx=1782, 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=185760: Fri Aug 7 11:35:27 2026 read: IOPS=23, BW=383KiB/s (392kB/s)(6032KiB/15749msec) clat (usec): min=3792, max=89683, avg=17789.39, stdev=12750.48 lat (usec): min=3793, max=89684, avg=17790.06, stdev=12750.51 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 4883], 10.00th=[ 5669], 20.00th=[ 7570], | 30.00th=[ 9765], 40.00th=[11338], 50.00th=[13173], 60.00th=[16581], | 70.00th=[20841], 80.00th=[26870], 90.00th=[36963], 95.00th=[45351], | 99.00th=[53740], 99.50th=[60556], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 95, max= 1184, per=24.92%, avg=377.35, stdev=242.25, samples=31 iops : min= 5, max= 74, avg=22.97, stdev=15.35, samples=31 write: IOPS=24, BW=397KiB/s (407kB/s)(6256KiB/15749msec); 0 zone resets clat (usec): min=5049, max=97947, avg=23020.27, stdev=14825.69 lat (usec): min=5050, max=97951, avg=23021.55, stdev=14825.87 clat percentiles (usec): | 1.00th=[ 5669], 5.00th=[ 6587], 10.00th=[ 7111], 20.00th=[ 9896], | 30.00th=[12387], 40.00th=[16319], 50.00th=[20317], 60.00th=[23725], | 70.00th=[28181], 80.00th=[33817], 90.00th=[41681], 95.00th=[52167], | 99.00th=[68682], 99.50th=[93848], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 191, max= 1088, per=24.70%, avg=393.48, stdev=196.14, samples=31 iops : min= 11, max= 68, avg=23.97, stdev=12.46, samples=31 lat (msec) : 4=0.39%, 10=25.78%, 20=31.90%, 50=37.50%, 100=4.43% cpu : usr=0.08%, sys=14.73%, ctx=1750, 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=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=1515KiB/s (1551kB/s), 364KiB/s-396KiB/s (373kB/s-406kB/s), io=23.4MiB (24.5MB), run=15749-15814msec WRITE: bw=1594KiB/s (1632kB/s), 382KiB/s-414KiB/s (391kB/s-424kB/s), io=24.6MiB (25.8MB), run=15749-15814msec 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=185772: Fri Aug 7 11:35:36 2026 read: IOPS=2, BW=2212KiB/s (2265kB/s)(7168KiB/3241msec) clat (usec): min=544, max=1031.8k, avg=217600.83, stdev=364513.16 lat (usec): min=545, max=1031.8k, avg=217601.94, stdev=364513.64 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], | 20.00th=[ 603], 30.00th=[ 88605], 40.00th=[ 88605], | 50.00th=[ 93848], 60.00th=[ 152044], 70.00th=[ 152044], | 80.00th=[ 156238], 90.00th=[1027605], 95.00th=[1027605], | 99.00th=[1027605], 99.50th=[1027605], 99.90th=[1027605], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 2048, max= 6144, per=58.33%, avg=3072.00, stdev=2048.00, samples=4 iops : min= 2, max= 6, avg= 3.00, stdev= 2.00, samples=4 write: IOPS=1, BW=1580KiB/s (1618kB/s)(5120KiB/3241msec); 0 zone resets clat (msec): min=182, max=553, avg=337.52, stdev=143.89 lat (msec): min=182, max=553, avg=337.56, stdev=143.89 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2027, max= 4096, per=36.94%, avg=2723.67, stdev=1188.52, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 750=16.67% lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=39.29%, ctx=1099, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185773: Fri Aug 7 11:35:36 2026 read: IOPS=0, BW=527KiB/s (539kB/s)(2048KiB/3888msec) clat (msec): min=681, max=1090, avg=885.97, stdev=289.58 lat (msec): min=681, max=1090, avg=885.97, stdev=289.58 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2048, max= 2048, per=38.88%, avg=2048.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2634KiB/s (2697kB/s)(10.0MiB/3888msec); 0 zone resets clat (msec): min=99, max=508, avg=207.92, stdev=123.04 lat (msec): min=99, max=508, avg=207.98, stdev=123.05 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 104], | 30.00th=[ 107], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 2027, max= 4096, per=48.53%, avg=3578.75, stdev=1034.50, samples=4 iops : min= 1, max= 4, avg= 3.25, stdev= 1.50, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.03%, sys=41.47%, ctx=573, 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=185774: Fri Aug 7 11:35:36 2026 read: IOPS=1, BW=1978KiB/s (2026kB/s)(6144KiB/3106msec) clat (usec): min=380, max=291088, avg=99890.93, stdev=113928.74 lat (usec): min=380, max=291089, avg=99891.70, stdev=113928.94 clat percentiles (usec): | 1.00th=[ 379], 5.00th=[ 379], 10.00th=[ 379], 20.00th=[ 482], | 30.00th=[ 482], 40.00th=[ 33424], 50.00th=[ 33424], 60.00th=[110625], | 70.00th=[162530], 80.00th=[162530], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 4055, max= 4096, per=77.38%, avg=4075.50, stdev=28.99, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1978KiB/s (2026kB/s)(6144KiB/3106msec); 0 zone resets clat (msec): min=144, max=1184, avg=410.44, stdev=389.83 lat (msec): min=144, max=1184, avg=410.49, stdev=389.84 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 355], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 2048, max= 4055, per=42.96%, avg=3168.00, stdev=1023.59, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (usec) : 500=16.67% lat (msec) : 50=8.33%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=34.27%, ctx=251, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185775: Fri Aug 7 11:35:36 2026 read: IOPS=1, BW=1846KiB/s (1891kB/s)(5120KiB/2773msec) clat (usec): min=453, max=126759, avg=75575.35, stdev=55725.15 lat (usec): min=454, max=126759, avg=75576.28, stdev=55725.13 clat percentiles (usec): | 1.00th=[ 453], 5.00th=[ 453], 10.00th=[ 453], 20.00th=[ 453], | 30.00th=[ 34866], 40.00th=[ 34866], 50.00th=[ 92799], 60.00th=[ 92799], | 70.00th=[122160], 80.00th=[122160], 90.00th=[126354], 95.00th=[126354], | 99.00th=[126354], 99.50th=[126354], 99.90th=[126354], 99.95th=[126354], | 99.99th=[126354] bw ( KiB/s): min= 4055, max= 4096, per=77.38%, avg=4075.50, stdev=28.99, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2585KiB/s (2647kB/s)(7168KiB/2773msec); 0 zone resets clat (msec): min=166, max=1226, avg=340.37, stdev=391.07 lat (msec): min=166, max=1226, avg=340.43, stdev=391.08 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 174], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 218], 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= 1700, max= 4096, per=40.34%, avg=2974.75, stdev=1279.06, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (usec) : 500=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=66.67%, 2000=8.33% cpu : usr=0.00%, sys=44.30%, ctx=595, 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=5267KiB/s (5394kB/s), 527KiB/s-2212KiB/s (539kB/s-2265kB/s), io=20.0MiB (20.0MB), run=2773-3888msec WRITE: bw=7374KiB/s (7551kB/s), 1580KiB/s-2634KiB/s (1618kB/s-2697kB/s), io=28.0MiB (29.4MB), run=2773-3888msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185777: Fri Aug 7 11:35:36 2026 read: IOPS=1, BW=1817KiB/s (1861kB/s)(7168KiB/3945msec) clat (msec): min=48, max=1091, avg=436.18, stdev=439.72 lat (msec): min=48, max=1091, avg=436.18, stdev=439.72 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 58], | 30.00th=[ 66], 40.00th=[ 66], 50.00th=[ 234], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 885], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2048, max= 3992, per=49.61%, avg=2534.00, stdev=972.00, samples=4 iops : min= 2, max= 3, avg= 2.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1298KiB/s (1329kB/s)(5120KiB/3945msec); 0 zone resets clat (msec): min=69, max=213, avg=150.91, stdev=56.84 lat (msec): min=69, max=213, avg=150.98, stdev=56.87 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 213], | 99.00th=[ 213], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 1996, max= 4096, per=42.60%, avg=3046.00, stdev=1484.92, samples=2 iops : min= 1, max= 4, avg= 2.50, stdev= 2.12, samples=2 lat (msec) : 50=8.33%, 100=25.00%, 250=41.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=11.89%, 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=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=185778: Fri Aug 7 11:35:36 2026 read: IOPS=0, BW=511KiB/s (523kB/s)(2048KiB/4009msec) clat (msec): min=443, max=1095, avg=769.42, stdev=460.50 lat (msec): min=443, max=1095, avg=769.42, stdev=460.50 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 2048, max= 2048, per=40.09%, avg=2048.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2554KiB/s (2616kB/s)(10.0MiB/4009msec); 0 zone resets clat (msec): min=20, max=808, avg=245.79, stdev=224.62 lat (msec): min=20, max=808, avg=245.86, stdev=224.62 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 21], 10.00th=[ 21], 20.00th=[ 75], | 30.00th=[ 133], 40.00th=[ 138], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 305], 90.00th=[ 393], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1996, max= 6144, per=49.94%, avg=3571.00, stdev=1974.51, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=14.47%, ctx=162, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185779: Fri Aug 7 11:35:36 2026 read: IOPS=1, BW=1882KiB/s (1928kB/s)(6144KiB/3264msec) clat (msec): min=61, max=147, avg=98.19, stdev=32.85 lat (msec): min=61, max=147, avg=98.19, stdev=32.85 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 67], 40.00th=[ 87], 50.00th=[ 87], 60.00th=[ 112], | 70.00th=[ 116], 80.00th=[ 116], 90.00th=[ 148], 95.00th=[ 148], | 99.00th=[ 148], 99.50th=[ 148], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 2048, max= 5988, per=65.81%, avg=3361.33, stdev=2274.76, samples=3 iops : min= 2, max= 5, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1882KiB/s (1928kB/s)(6144KiB/3264msec); 0 zone resets clat (msec): min=39, max=1459, avg=423.74, stdev=521.46 lat (msec): min=39, max=1459, avg=423.80, stdev=521.46 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 40], 10.00th=[ 40], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 338], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 1996, max= 3482, per=33.47%, avg=2393.50, stdev=726.08, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=18.51%, ctx=177, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185780: Fri Aug 7 11:35:36 2026 read: IOPS=1, BW=1328KiB/s (1360kB/s)(5120KiB/3856msec) clat (msec): min=56, max=476, avg=180.49, stdev=180.71 lat (msec): min=56, max=476, avg=180.49, stdev=180.71 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 58], 40.00th=[ 58], 50.00th=[ 81], 60.00th=[ 81], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1859KiB/s (1904kB/s)(7168KiB/3856msec); 0 zone resets clat (msec): min=67, max=1428, avg=402.62, stdev=471.49 lat (msec): min=67, max=1428, avg=402.70, stdev=471.48 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 85], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 334], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1738, max= 2048, per=27.63%, avg=1975.60, stdev=134.72, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 100=41.67%, 250=16.67%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=16.86%, ctx=258, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5109KiB/s (5231kB/s), 511KiB/s-1882KiB/s (523kB/s-1928kB/s), io=20.0MiB (20.0MB), run=3264-4009msec WRITE: bw=7152KiB/s (7324kB/s), 1298KiB/s-2554KiB/s (1329kB/s-2616kB/s), io=28.0MiB (29.4MB), run=3264-4009msec 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=185791: Fri Aug 7 11:35:45 2026 read: IOPS=2, BW=8911KiB/s (9125kB/s)(12.0MiB/1379msec) clat (msec): min=448, max=476, avg=459.27, stdev=14.88 lat (msec): min=448, max=476, avg=459.27, stdev=14.88 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 5704, max= 8192, per=76.55%, avg=6948.00, stdev=1759.28, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=53.05%, ctx=2860, 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=185792: Fri Aug 7 11:35:45 2026 read: IOPS=0, BW=2269KiB/s (2324kB/s)(4096KiB/1805msec) clat (nsec): min=491287k, max=491287k, avg=491287225.00, stdev= 0.00 lat (nsec): min=491289k, max=491289k, avg=491288688.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 5587, max= 5587, per=61.55%, avg=5587.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4539KiB/s (4647kB/s)(8192KiB/1805msec); 0 zone resets clat (msec): min=533, max=778, avg=655.92, stdev=172.79 lat (msec): min=534, max=778, avg=656.17, stdev=172.77 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 776], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 8159, max= 8159, per=45.02%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=19.79%, ctx=935, 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=185793: Fri Aug 7 11:35:45 2026 write: IOPS=1, BW=7398KiB/s (7576kB/s)(12.0MiB/1661msec); 0 zone resets clat (msec): min=175, max=806, avg=552.99, stdev=332.85 lat (msec): min=176, max=806, avg=553.22, stdev=332.81 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8192, max= 8192, per=45.20%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.06%, sys=17.47%, ctx=69, 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=185794: Fri Aug 7 11:35:45 2026 write: IOPS=1, BW=6796KiB/s (6960kB/s)(12.0MiB/1808msec); 0 zone resets clat (msec): min=154, max=844, avg=600.63, stdev=386.78 lat (msec): min=154, max=845, avg=600.90, stdev=386.78 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8159, max= 8192, per=45.11%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.06%, sys=16.10%, ctx=50, 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=9077KiB/s (9295kB/s), 2269KiB/s-8911KiB/s (2324kB/s-9125kB/s), io=16.0MiB (16.8MB), run=1379-1805msec WRITE: bw=17.7MiB/s (18.6MB/s), 4539KiB/s-7398KiB/s (4647kB/s-7576kB/s), io=32.0MiB (33.6MB), run=1661-1808msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185786: Fri Aug 7 11:35:45 2026 read: IOPS=1, BW=7178KiB/s (7350kB/s)(12.0MiB/1712msec) clat (msec): min=453, max=735, avg=560.52, stdev=153.00 lat (msec): min=453, max=735, avg=560.52, stdev=153.00 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7585, max= 8192, per=82.43%, avg=7888.50, stdev=429.21, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.06%, sys=17.24%, ctx=76, 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=185787: Fri Aug 7 11:35:45 2026 read: IOPS=0, BW=2775KiB/s (2842kB/s)(4096KiB/1476msec) clat (nsec): min=128193k, max=128193k, avg=128193272.00, stdev= 0.00 lat (nsec): min=128195k, max=128195k, avg=128194992.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 7585, max= 7585, per=79.26%, avg=7585.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5550KiB/s (5683kB/s)(8192KiB/1476msec); 0 zone resets clat (msec): min=422, max=893, avg=658.33, stdev=333.01 lat (msec): min=423, max=894, avg=658.59, stdev=333.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8192, max= 8192, per=53.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=19.66%, ctx=58, 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=185788: Fri Aug 7 11:35:45 2026 write: IOPS=1, BW=5785KiB/s (5924kB/s)(12.0MiB/2124msec); 0 zone resets clat (msec): min=69, max=1691, avg=700.47, stdev=869.06 lat (msec): min=69, max=1691, avg=700.71, stdev=868.96 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 70], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8192, max= 8192, per=53.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=11.30%, ctx=58, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=185789: Fri Aug 7 11:35:45 2026 write: IOPS=2, BW=8434KiB/s (8636kB/s)(12.0MiB/1457msec); 0 zone resets clat (msec): min=140, max=894, avg=475.17, stdev=384.42 lat (msec): min=140, max=895, avg=475.43, stdev=384.45 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7599, max= 8192, per=51.18%, avg=7895.50, stdev=419.31, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.07%, sys=20.26%, ctx=71, 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=9570KiB/s (9800kB/s), 2775KiB/s-7178KiB/s (2842kB/s-7350kB/s), io=16.0MiB (16.8MB), run=1476-1712msec WRITE: bw=15.1MiB/s (15.8MB/s), 5550KiB/s-8434KiB/s (5683kB/s-8636kB/s), io=32.0MiB (33.6MB), run=1457-2124msec