== sanity test 398b: DIO and buffer IO race ============== 19:18:01 (1786835881) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.41727 s, 14.7 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=180767: Sat Aug 15 19:19:20 2026 read: IOPS=21, BW=86.9KiB/s (88.9kB/s)(5992KiB/68987msec) clat (usec): min=36, max=704889, avg=25017.14, stdev=22811.46 lat (usec): min=37, max=704891, avg=25018.54, stdev=22811.87 clat percentiles (usec): | 1.00th=[ 82], 5.00th=[ 8455], 10.00th=[ 10683], 20.00th=[ 13566], | 30.00th=[ 16057], 40.00th=[ 18744], 50.00th=[ 21890], 60.00th=[ 25297], | 70.00th=[ 28967], 80.00th=[ 33817], 90.00th=[ 41681], 95.00th=[ 51119], | 99.00th=[ 79168], 99.50th=[ 92799], 99.90th=[120062], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 6, max= 159, per=24.84%, avg=86.46, stdev=25.49, samples=137 iops : min= 1, max= 39, avg=21.12, stdev= 6.36, samples=137 write: IOPS=22, BW=91.3KiB/s (93.5kB/s)(6296KiB/68987msec); 0 zone resets clat (usec): min=1155, max=133300, avg=19858.26, stdev=17174.71 lat (usec): min=1157, max=133301, avg=19864.54, stdev=17176.52 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 2278], 10.00th=[ 2868], 20.00th=[ 4080], | 30.00th=[ 6587], 40.00th=[ 11994], 50.00th=[ 16188], 60.00th=[ 20317], | 70.00th=[ 25560], 80.00th=[ 32637], 90.00th=[ 43254], 95.00th=[ 52691], | 99.00th=[ 70779], 99.50th=[ 85459], 99.90th=[120062], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 31, max= 183, per=25.11%, avg=91.41, stdev=27.37, samples=136 iops : min= 7, max= 45, avg=22.35, stdev= 6.85, samples=136 lat (usec) : 50=0.07%, 100=0.62%, 250=0.81%, 500=0.03%, 750=0.03% lat (msec) : 2=1.79%, 4=8.20%, 10=10.97%, 20=29.75%, 50=41.96% lat (msec) : 100=5.47%, 250=0.26%, 750=0.03% cpu : usr=0.12%, sys=14.85%, ctx=8463, majf=0, minf=18 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=180768: Sat Aug 15 19:19:20 2026 read: IOPS=21, BW=87.5KiB/s (89.6kB/s)(5940KiB/67870msec) clat (usec): min=44, max=137257, avg=24424.81, stdev=14623.21 lat (usec): min=45, max=137258, avg=24426.07, stdev=14623.29 clat percentiles (usec): | 1.00th=[ 69], 5.00th=[ 8979], 10.00th=[ 11076], 20.00th=[ 13304], | 30.00th=[ 16057], 40.00th=[ 18482], 50.00th=[ 21103], 60.00th=[ 24773], | 70.00th=[ 28705], 80.00th=[ 33817], 90.00th=[ 41681], 95.00th=[ 50070], | 99.00th=[ 78119], 99.50th=[ 82314], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 6, max= 151, per=25.06%, avg=87.22, stdev=25.75, samples=135 iops : min= 1, max= 37, avg=21.31, stdev= 6.44, samples=135 write: IOPS=23, BW=93.5KiB/s (95.8kB/s)(6348KiB/67870msec); 0 zone resets clat (usec): min=954, max=682080, avg=19739.36, stdev=23511.53 lat (usec): min=955, max=682081, avg=19741.49, stdev=23511.05 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2008], 10.00th=[ 2769], 20.00th=[ 4047], | 30.00th=[ 7570], 40.00th=[ 11994], 50.00th=[ 15533], 60.00th=[ 19792], | 70.00th=[ 24773], 80.00th=[ 31065], 90.00th=[ 41681], 95.00th=[ 50594], | 99.00th=[ 73925], 99.50th=[ 87557], 99.90th=[139461], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 39, max= 208, per=25.80%, avg=93.91, stdev=28.54, samples=134 iops : min= 9, max= 52, avg=22.99, stdev= 7.21, samples=134 lat (usec) : 50=0.07%, 100=0.91%, 250=0.49%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=2.54%, 4=7.62%, 10=9.54%, 20=31.93%, 50=41.54% lat (msec) : 100=4.88%, 250=0.23%, 750=0.03% cpu : usr=0.09%, sys=14.77%, ctx=8383, majf=0, minf=19 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=180769: Sat Aug 15 19:19:20 2026 read: IOPS=22, BW=88.4KiB/s (90.5kB/s)(6028KiB/68186msec) clat (usec): min=35, max=101373, avg=24547.00, stdev=13770.13 lat (usec): min=36, max=101374, avg=24549.69, stdev=13769.99 clat percentiles (usec): | 1.00th=[ 81], 5.00th=[ 9110], 10.00th=[ 11469], 20.00th=[ 13960], | 30.00th=[ 16450], 40.00th=[ 19006], 50.00th=[ 22152], 60.00th=[ 25297], | 70.00th=[ 28967], 80.00th=[ 33817], 90.00th=[ 40633], 95.00th=[ 49021], | 99.00th=[ 73925], 99.50th=[ 84411], 99.90th=[100140], 99.95th=[101188], | 99.99th=[101188] bw ( KiB/s): min= 32, max= 175, per=25.43%, avg=88.49, stdev=25.89, samples=134 iops : min= 8, max= 43, avg=21.63, stdev= 6.48, samples=134 write: IOPS=22, BW=91.8KiB/s (94.0kB/s)(6260KiB/68186msec); 0 zone resets clat (usec): min=1094, max=693060, avg=19763.73, stdev=24070.03 lat (usec): min=1096, max=693060, avg=19765.94, stdev=24070.30 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 2040], 10.00th=[ 2671], 20.00th=[ 4080], | 30.00th=[ 6521], 40.00th=[ 11731], 50.00th=[ 15401], 60.00th=[ 19268], | 70.00th=[ 25035], 80.00th=[ 31327], 90.00th=[ 42730], 95.00th=[ 51643], | 99.00th=[ 73925], 99.50th=[ 91751], 99.90th=[141558], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 13, max= 174, per=25.03%, avg=91.12, stdev=29.77, samples=135 iops : min= 3, max= 43, avg=22.29, stdev= 7.48, samples=135 lat (usec) : 50=0.10%, 100=0.78%, 250=0.49% lat (msec) : 2=2.51%, 4=7.49%, 10=10.32%, 20=30.92%, 50=42.29% lat (msec) : 100=4.95%, 250=0.13%, 750=0.03% cpu : usr=0.11%, sys=14.65%, ctx=8327, majf=0, minf=18 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=180770: Sat Aug 15 19:19:20 2026 read: IOPS=22, BW=88.2KiB/s (90.3kB/s)(6052KiB/68611msec) clat (usec): min=50, max=707369, avg=24280.84, stdev=22366.61 lat (usec): min=51, max=707370, avg=24282.17, stdev=22366.59 clat percentiles (usec): | 1.00th=[ 93], 5.00th=[ 8225], 10.00th=[ 10552], 20.00th=[ 13435], | 30.00th=[ 15795], 40.00th=[ 18220], 50.00th=[ 21103], 60.00th=[ 24511], | 70.00th=[ 28443], 80.00th=[ 33817], 90.00th=[ 41157], 95.00th=[ 49021], | 99.00th=[ 71828], 99.50th=[ 83362], 99.90th=[141558], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 6, max= 144, per=25.20%, avg=87.69, stdev=25.32, samples=136 iops : min= 1, max= 36, avg=21.43, stdev= 6.32, samples=136 write: IOPS=22, BW=90.9KiB/s (93.1kB/s)(6236KiB/68611msec); 0 zone resets clat (usec): min=1085, max=134286, avg=20256.85, stdev=17569.01 lat (usec): min=1086, max=134286, avg=20258.49, stdev=17569.15 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 2180], 10.00th=[ 2900], 20.00th=[ 4228], | 30.00th=[ 7373], 40.00th=[ 12649], 50.00th=[ 16319], 60.00th=[ 20841], | 70.00th=[ 25822], 80.00th=[ 33162], 90.00th=[ 43254], 95.00th=[ 53740], | 99.00th=[ 72877], 99.50th=[ 85459], 99.90th=[129500], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 23, max= 191, per=24.81%, avg=90.32, stdev=28.45, samples=136 iops : min= 5, max= 47, avg=22.08, stdev= 7.14, samples=136 lat (usec) : 100=0.75%, 250=0.85%, 500=0.10% lat (msec) : 2=1.79%, 4=7.78%, 10=10.64%, 20=31.22%, 50=41.28% lat (msec) : 100=5.27%, 250=0.29%, 750=0.03% cpu : usr=0.11%, sys=14.62%, ctx=8493, majf=0, minf=19 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=348KiB/s (356kB/s), 86.9KiB/s-88.4KiB/s (88.9kB/s-90.5kB/s), io=23.4MiB (24.6MB), run=67870-68987msec WRITE: bw=364KiB/s (373kB/s), 90.9KiB/s-93.5KiB/s (93.1kB/s-95.8kB/s), io=24.6MiB (25.7MB), run=67870-68987msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180771: Sat Aug 15 19:19:34 2026 read: IOPS=18, BW=72.7KiB/s (74.5kB/s)(5992KiB/82402msec) clat (msec): min=3, max=710, avg=22.62, stdev=26.34 lat (msec): min=3, max=710, avg=22.62, stdev=26.34 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 20], | 70.00th=[ 26], 80.00th=[ 34], 90.00th=[ 48], 95.00th=[ 63], | 99.00th=[ 93], 99.50th=[ 112], 99.90th=[ 157], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 15, max= 240, per=25.13%, avg=72.88, stdev=52.11, samples=163 iops : min= 3, max= 60, avg=17.74, stdev=13.14, samples=163 write: IOPS=19, BW=76.4KiB/s (78.2kB/s)(6296KiB/82402msec); 0 zone resets clat (msec): min=7, max=188, avg=30.68, stdev=22.12 lat (msec): min=7, max=188, avg=30.68, stdev=22.12 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 46], 90.00th=[ 59], 95.00th=[ 74], | 99.00th=[ 106], 99.50th=[ 129], 99.90th=[ 182], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 15, max= 248, per=25.23%, avg=76.45, stdev=52.36, samples=163 iops : min= 3, max= 62, avg=18.63, stdev=13.20, samples=163 lat (msec) : 4=0.07%, 10=17.77%, 20=34.77%, 50=34.54%, 100=11.78% lat (msec) : 250=1.04%, 750=0.03% cpu : usr=0.10%, sys=7.32%, ctx=5639, 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=180772: Sat Aug 15 19:19:34 2026 read: IOPS=17, BW=71.8KiB/s (73.5kB/s)(5940KiB/82702msec) clat (msec): min=3, max=717, avg=22.58, stdev=26.97 lat (msec): min=3, max=717, avg=22.58, stdev=26.97 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 25], 80.00th=[ 34], 90.00th=[ 52], 95.00th=[ 63], | 99.00th=[ 94], 99.50th=[ 110], 99.90th=[ 176], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8, max= 248, per=24.65%, avg=71.50, stdev=53.06, samples=163 iops : min= 2, max= 62, avg=17.39, stdev=13.37, samples=163 write: IOPS=19, BW=76.8KiB/s (78.6kB/s)(6348KiB/82702msec); 0 zone resets clat (msec): min=6, max=158, avg=30.84, stdev=21.64 lat (msec): min=6, max=158, avg=30.84, stdev=21.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 62], 95.00th=[ 71], | 99.00th=[ 104], 99.50th=[ 126], 99.90th=[ 150], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 15, max= 232, per=25.12%, avg=76.10, stdev=51.20, samples=163 iops : min= 3, max= 58, avg=18.55, stdev=12.92, samples=163 lat (msec) : 4=0.07%, 10=18.72%, 20=34.05%, 50=32.58%, 100=13.64% lat (msec) : 250=0.91%, 750=0.03% cpu : usr=0.07%, sys=7.21%, ctx=5660, 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=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=180773: Sat Aug 15 19:19:34 2026 read: IOPS=18, BW=73.3KiB/s (75.1kB/s)(6028KiB/82235msec) clat (msec): min=3, max=159, avg=22.03, stdev=19.12 lat (msec): min=3, max=159, avg=22.03, stdev=19.12 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 47], 95.00th=[ 63], | 99.00th=[ 92], 99.50th=[ 104], 99.90th=[ 155], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 15, max= 256, per=25.21%, avg=73.12, stdev=51.39, samples=162 iops : min= 3, max= 64, avg=17.80, stdev=12.96, samples=162 write: IOPS=19, BW=76.1KiB/s (77.9kB/s)(6260KiB/82235msec); 0 zone resets clat (msec): min=5, max=707, avg=31.18, stdev=27.66 lat (msec): min=5, max=707, avg=31.18, stdev=27.66 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 46], 90.00th=[ 59], 95.00th=[ 72], | 99.00th=[ 111], 99.50th=[ 126], 99.90th=[ 190], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 15, max= 232, per=24.99%, avg=75.73, stdev=50.53, samples=162 iops : min= 3, max= 58, avg=18.45, stdev=12.74, samples=162 lat (msec) : 4=0.07%, 10=17.64%, 20=34.57%, 50=35.03%, 100=11.69% lat (msec) : 250=0.98%, 750=0.03% cpu : usr=0.08%, sys=7.39%, ctx=5568, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180774: Sat Aug 15 19:19:34 2026 read: IOPS=18, BW=73.5KiB/s (75.3kB/s)(6052KiB/82320msec) clat (msec): min=3, max=136, avg=22.42, stdev=19.65 lat (msec): min=3, max=136, avg=22.43, stdev=19.65 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 20], | 70.00th=[ 26], 80.00th=[ 36], 90.00th=[ 52], 95.00th=[ 63], | 99.00th=[ 91], 99.50th=[ 104], 99.90th=[ 117], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 15, max= 247, per=25.18%, avg=73.02, stdev=51.97, samples=162 iops : min= 3, max= 61, avg=17.77, stdev=13.09, samples=162 write: IOPS=18, BW=75.8KiB/s (77.6kB/s)(6236KiB/82320msec); 0 zone resets clat (msec): min=6, max=726, avg=30.89, stdev=27.66 lat (msec): min=6, max=726, avg=30.89, stdev=27.66 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 60], 95.00th=[ 71], | 99.00th=[ 106], 99.50th=[ 127], 99.90th=[ 165], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 16, max= 216, per=24.88%, avg=75.40, stdev=51.42, samples=162 iops : min= 4, max= 54, avg=18.36, stdev=12.97, samples=162 lat (msec) : 4=0.10%, 10=18.85%, 20=33.30%, 50=34.05%, 100=12.83% lat (msec) : 250=0.85%, 750=0.03% cpu : usr=0.09%, sys=7.29%, ctx=5539, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=290KiB/s (297kB/s), 71.8KiB/s-73.5KiB/s (73.5kB/s-75.3kB/s), io=23.4MiB (24.6MB), run=82235-82702msec WRITE: bw=304KiB/s (311kB/s), 75.8KiB/s-76.8KiB/s (77.6kB/s-78.6kB/s), io=24.6MiB (25.7MB), run=82235-82702msec 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=180805: Sat Aug 15 19:20:00 2026 read: IOPS=18, BW=296KiB/s (303kB/s)(5920KiB/20027msec) clat (usec): min=53, max=125325, avg=27371.49, stdev=14481.67 lat (usec): min=53, max=125327, avg=27373.05, stdev=14481.43 clat percentiles (usec): | 1.00th=[ 103], 5.00th=[ 7832], 10.00th=[ 12518], 20.00th=[ 16057], | 30.00th=[ 19268], 40.00th=[ 22414], 50.00th=[ 26346], 60.00th=[ 29230], | 70.00th=[ 33424], 80.00th=[ 37487], 90.00th=[ 43779], 95.00th=[ 51643], | 99.00th=[ 67634], 99.50th=[ 82314], 99.90th=[125305], 99.95th=[125305], | 99.99th=[125305] bw ( KiB/s): min= 191, max= 541, per=25.10%, avg=293.67, stdev=65.94, samples=39 iops : min= 11, max= 33, avg=17.74, stdev= 4.18, samples=39 write: IOPS=19, BW=318KiB/s (326kB/s)(6368KiB/20027msec); 0 zone resets clat (usec): min=1796, max=96599, avg=24608.94, stdev=18596.58 lat (usec): min=1798, max=96602, avg=24613.93, stdev=18595.03 clat percentiles (usec): | 1.00th=[ 2540], 5.00th=[ 4555], 10.00th=[ 6063], 20.00th=[ 8094], | 30.00th=[11600], 40.00th=[15401], 50.00th=[19792], 60.00th=[24249], | 70.00th=[30278], 80.00th=[39060], 90.00th=[51119], 95.00th=[62129], | 99.00th=[85459], 99.50th=[90702], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 63, max= 512, per=25.89%, avg=318.69, stdev=88.53, samples=39 iops : min= 3, max= 32, avg=19.31, stdev= 5.56, samples=39 lat (usec) : 100=0.39%, 250=1.56%, 500=0.39% lat (msec) : 2=0.13%, 4=1.43%, 10=12.24%, 20=25.13%, 50=50.26% lat (msec) : 100=8.33%, 250=0.13% cpu : usr=0.10%, sys=21.13%, ctx=2791, 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=180806: Sat Aug 15 19:20:00 2026 read: IOPS=18, BW=294KiB/s (301kB/s)(5744KiB/19540msec) clat (usec): min=44, max=124519, avg=27170.14, stdev=13896.17 lat (usec): min=46, max=124520, avg=27171.30, stdev=13896.15 clat percentiles (usec): | 1.00th=[ 73], 5.00th=[ 217], 10.00th=[ 12649], 20.00th=[ 16909], | 30.00th=[ 19792], 40.00th=[ 22938], 50.00th=[ 26346], 60.00th=[ 30278], | 70.00th=[ 33817], 80.00th=[ 37487], 90.00th=[ 43254], 95.00th=[ 47449], | 99.00th=[ 62653], 99.50th=[ 91751], 99.90th=[124257], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 128, max= 480, per=25.16%, avg=294.39, stdev=89.57, samples=38 iops : min= 8, max= 30, avg=17.76, stdev= 5.66, samples=38 write: IOPS=20, BW=335KiB/s (343kB/s)(6544KiB/19540msec); 0 zone resets clat (usec): min=2070, max=78926, avg=23602.40, stdev=16492.06 lat (usec): min=2072, max=78929, avg=23604.70, stdev=16492.03 clat percentiles (usec): | 1.00th=[ 2442], 5.00th=[ 3982], 10.00th=[ 5342], 20.00th=[ 7570], | 30.00th=[12387], 40.00th=[16712], 50.00th=[20317], 60.00th=[25297], | 70.00th=[30016], 80.00th=[36439], 90.00th=[46924], 95.00th=[56886], | 99.00th=[71828], 99.50th=[76022], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 160, max= 576, per=26.96%, avg=331.87, stdev=96.45, samples=38 iops : min= 10, max= 36, avg=20.13, stdev= 6.15, samples=38 lat (usec) : 50=0.13%, 100=0.39%, 250=1.95%, 500=0.13% lat (msec) : 4=2.73%, 10=10.42%, 20=25.00%, 50=52.86%, 100=6.25% lat (msec) : 250=0.13% cpu : usr=0.11%, sys=21.64%, ctx=2673, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180807: Sat Aug 15 19:20:00 2026 read: IOPS=19, BW=306KiB/s (313kB/s)(6256KiB/20459msec) clat (usec): min=67, max=87188, avg=27799.11, stdev=14564.43 lat (usec): min=68, max=87190, avg=27800.31, stdev=14564.47 clat percentiles (usec): | 1.00th=[ 108], 5.00th=[ 227], 10.00th=[11994], 20.00th=[16909], | 30.00th=[20317], 40.00th=[23462], 50.00th=[26346], 60.00th=[30016], | 70.00th=[33424], 80.00th=[37487], 90.00th=[45876], 95.00th=[54264], | 99.00th=[72877], 99.50th=[82314], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 159, max= 446, per=25.92%, avg=303.30, stdev=72.77, samples=40 iops : min= 9, max= 27, avg=18.32, stdev= 4.58, samples=40 write: IOPS=18, BW=295KiB/s (302kB/s)(6032KiB/20459msec); 0 zone resets clat (usec): min=1411, max=95752, avg=25309.27, stdev=18110.05 lat (usec): min=1414, max=95754, avg=25312.47, stdev=18110.75 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 3228], 10.00th=[ 5473], 20.00th=[ 8291], | 30.00th=[13042], 40.00th=[16581], 50.00th=[21890], 60.00th=[26608], | 70.00th=[32375], 80.00th=[40633], 90.00th=[51119], 95.00th=[60556], | 99.00th=[76022], 99.50th=[81265], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 127, max= 479, per=23.44%, avg=288.55, stdev=90.28, samples=40 iops : min= 7, max= 29, avg=17.42, stdev= 5.74, samples=40 lat (usec) : 100=0.26%, 250=2.34%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.78%, 4=2.47%, 10=9.24%, 20=22.14%, 50=53.65% lat (msec) : 100=8.85% cpu : usr=0.09%, sys=20.95%, ctx=2753, 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=180808: Sat Aug 15 19:20:00 2026 read: IOPS=18, BW=304KiB/s (311kB/s)(6032KiB/19858msec) clat (usec): min=52, max=97371, avg=27788.46, stdev=14340.15 lat (usec): min=53, max=97372, avg=27789.63, stdev=14340.16 clat percentiles (usec): | 1.00th=[ 66], 5.00th=[ 235], 10.00th=[12649], 20.00th=[17433], | 30.00th=[20579], 40.00th=[23462], 50.00th=[25560], 60.00th=[28967], | 70.00th=[32900], 80.00th=[38011], 90.00th=[46400], 95.00th=[53216], | 99.00th=[72877], 99.50th=[79168], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 159, max= 448, per=25.98%, avg=303.97, stdev=71.50, samples=39 iops : min= 9, max= 28, avg=18.38, stdev= 4.61, samples=39 write: IOPS=19, BW=315KiB/s (323kB/s)(6256KiB/19858msec); 0 zone resets clat (usec): min=1270, max=89349, avg=23621.06, stdev=16954.14 lat (usec): min=1272, max=89351, avg=23623.27, stdev=16954.21 clat percentiles (usec): | 1.00th=[ 2114], 5.00th=[ 3982], 10.00th=[ 5538], 20.00th=[ 8356], | 30.00th=[11469], 40.00th=[14877], 50.00th=[19530], 60.00th=[24511], | 70.00th=[31065], 80.00th=[38011], 90.00th=[47449], 95.00th=[53216], | 99.00th=[82314], 99.50th=[86508], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 127, max= 509, per=25.79%, avg=317.51, stdev=84.61, samples=39 iops : min= 7, max= 31, avg=19.23, stdev= 5.35, samples=39 lat (usec) : 100=0.91%, 250=1.69%, 500=0.13% lat (msec) : 2=0.39%, 4=2.21%, 10=10.42%, 20=24.48%, 50=52.60% lat (msec) : 100=7.16% cpu : usr=0.09%, sys=21.41%, ctx=2814, 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=1171KiB/s (1199kB/s), 294KiB/s-306KiB/s (301kB/s-313kB/s), io=23.4MiB (24.5MB), run=19540-20459msec WRITE: bw=1232KiB/s (1261kB/s), 295KiB/s-335KiB/s (302kB/s-343kB/s), io=24.6MiB (25.8MB), run=19540-20459msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180800: Sat Aug 15 19:20:04 2026 read: IOPS=15, BW=243KiB/s (249kB/s)(5920KiB/24362msec) clat (msec): min=5, max=118, avg=26.92, stdev=21.54 lat (msec): min=5, max=118, avg=26.92, stdev=21.54 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 41], 90.00th=[ 61], 95.00th=[ 74], | 99.00th=[ 102], 99.50th=[ 115], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 31, max= 672, per=24.41%, avg=238.50, stdev=127.77, samples=48 iops : min= 1, max= 42, avg=14.35, stdev= 8.01, samples=48 write: IOPS=16, BW=261KiB/s (268kB/s)(6368KiB/24362msec); 0 zone resets clat (msec): min=9, max=160, avg=35.98, stdev=21.23 lat (msec): min=9, max=160, avg=35.99, stdev=21.23 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 68], 95.00th=[ 78], | 99.00th=[ 96], 99.50th=[ 114], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 95, max= 638, per=25.24%, avg=259.44, stdev=121.24, samples=48 iops : min= 5, max= 39, avg=15.67, stdev= 7.66, samples=48 lat (msec) : 10=6.38%, 20=32.55%, 50=41.67%, 100=18.49%, 250=0.91% cpu : usr=0.09%, sys=9.19%, ctx=1702, 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=180801: Sat Aug 15 19:20:04 2026 read: IOPS=14, BW=234KiB/s (240kB/s)(5744KiB/24495msec) clat (msec): min=5, max=125, avg=26.37, stdev=20.74 lat (msec): min=5, max=125, avg=26.37, stdev=20.74 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 37], 90.00th=[ 58], 95.00th=[ 77], | 99.00th=[ 96], 99.50th=[ 118], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 127, max= 576, per=24.21%, avg=236.57, stdev=114.14, samples=47 iops : min= 7, max= 36, avg=14.26, stdev= 7.13, samples=47 write: IOPS=16, BW=267KiB/s (274kB/s)(6544KiB/24495msec); 0 zone resets clat (msec): min=10, max=120, avg=36.64, stdev=21.42 lat (msec): min=10, max=120, avg=36.65, stdev=21.42 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 54], 90.00th=[ 70], 95.00th=[ 79], | 99.00th=[ 104], 99.50th=[ 118], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 126, max= 608, per=25.25%, avg=259.54, stdev=123.93, samples=48 iops : min= 7, max= 38, avg=15.69, stdev= 7.84, samples=48 lat (msec) : 10=5.34%, 20=33.46%, 50=42.32%, 100=17.58%, 250=1.30% cpu : usr=0.07%, sys=9.15%, ctx=1698, 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=180802: Sat Aug 15 19:20:04 2026 read: IOPS=16, BW=256KiB/s (262kB/s)(6256KiB/24419msec) clat (msec): min=5, max=119, avg=26.96, stdev=20.89 lat (msec): min=5, max=119, avg=26.97, stdev=20.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 59], 95.00th=[ 70], | 99.00th=[ 107], 99.50th=[ 117], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 95, max= 960, per=26.09%, avg=254.85, stdev=159.99, samples=48 iops : min= 5, max= 60, avg=15.40, stdev= 9.98, samples=48 write: IOPS=15, BW=247KiB/s (253kB/s)(6032KiB/24419msec); 0 zone resets clat (msec): min=10, max=160, avg=36.62, stdev=21.20 lat (msec): min=10, max=160, avg=36.62, stdev=21.20 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 29], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 52], 90.00th=[ 70], 95.00th=[ 80], | 99.00th=[ 96], 99.50th=[ 106], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 63, max= 606, per=23.49%, avg=241.44, stdev=117.00, samples=48 iops : min= 3, max= 37, avg=14.54, stdev= 7.38, samples=48 lat (msec) : 10=7.16%, 20=31.25%, 50=44.14%, 100=16.54%, 250=0.91% cpu : usr=0.06%, sys=9.39%, ctx=1725, 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=180803: Sat Aug 15 19:20:04 2026 read: IOPS=15, BW=251KiB/s (257kB/s)(6032KiB/24029msec) clat (msec): min=5, max=116, avg=26.91, stdev=20.69 lat (msec): min=5, max=116, avg=26.91, stdev=20.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 42], 90.00th=[ 58], 95.00th=[ 73], | 99.00th=[ 101], 99.50th=[ 115], 99.90th=[ 116], 99.95th=[ 116], | 99.99th=[ 116] bw ( KiB/s): min= 95, max= 638, per=25.02%, avg=244.47, stdev=122.72, samples=47 iops : min= 5, max= 39, avg=14.74, stdev= 7.74, samples=47 write: IOPS=16, BW=260KiB/s (267kB/s)(6256KiB/24029msec); 0 zone resets clat (msec): min=9, max=123, avg=35.36, stdev=20.07 lat (msec): min=9, max=123, avg=35.36, stdev=20.07 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 49], 90.00th=[ 63], 95.00th=[ 78], | 99.00th=[ 112], 99.50th=[ 120], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 63, max= 576, per=25.03%, avg=257.30, stdev=115.70, samples=47 iops : min= 3, max= 36, avg=15.55, stdev= 7.31, samples=47 lat (msec) : 10=5.47%, 20=32.94%, 50=45.18%, 100=15.36%, 250=1.04% cpu : usr=0.10%, sys=9.43%, ctx=1729, 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=978KiB/s (1001kB/s), 234KiB/s-256KiB/s (240kB/s-262kB/s), io=23.4MiB (24.5MB), run=24029-24495msec WRITE: bw=1029KiB/s (1053kB/s), 247KiB/s-267KiB/s (253kB/s-274kB/s), io=24.6MiB (25.8MB), run=24029-24495msec 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=180817: Sat Aug 15 19:20:15 2026 read: IOPS=2, BW=2049KiB/s (2098kB/s)(7168KiB/3498msec) clat (msec): min=64, max=1735, avg=363.28, stdev=607.35 lat (msec): min=64, max=1735, avg=363.28, stdev=607.35 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 72], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 140], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 209], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 3976, max= 6107, per=100.00%, avg=5041.50, stdev=1506.84, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1464KiB/s (1499kB/s)(5120KiB/3498msec); 0 zone resets clat (msec): min=89, max=238, avg=183.41, stdev=59.15 lat (msec): min=89, max=238, avg=183.49, stdev=59.15 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 209], 60.00th=[ 209], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 239], | 99.00th=[ 239], 99.50th=[ 239], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 1988, max= 4096, per=45.09%, avg=2706.33, stdev=1203.72, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 100=25.00%, 250=66.67%, 2000=8.33% cpu : usr=0.00%, sys=32.31%, ctx=939, 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=180818: Sat Aug 15 19:20:15 2026 read: IOPS=0, BW=429KiB/s (439kB/s)(2048KiB/4777msec) clat (usec): min=656, max=153036, avg=76846.39, stdev=107748.90 lat (usec): min=657, max=153037, avg=76847.55, stdev=107748.80 clat percentiles (usec): | 1.00th=[ 660], 5.00th=[ 660], 10.00th=[ 660], 20.00th=[ 660], | 30.00th=[ 660], 40.00th=[ 660], 50.00th=[ 660], 60.00th=[152044], | 70.00th=[152044], 80.00th=[152044], 90.00th=[152044], 95.00th=[152044], | 99.00th=[152044], 99.50th=[152044], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 1831, max= 2039, per=45.14%, avg=1935.00, stdev=147.08, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2144KiB/s (2195kB/s)(10.0MiB/4777msec); 0 zone resets clat (msec): min=122, max=1839, avg=449.09, stdev=527.35 lat (msec): min=122, max=1839, avg=449.17, stdev=527.35 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 264], | 70.00th=[ 334], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 2048, max= 6119, per=67.64%, avg=4059.75, stdev=1662.93, samples=4 iops : min= 2, max= 5, avg= 3.50, stdev= 1.29, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.06%, sys=27.62%, ctx=182, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180820: Sat Aug 15 19:20:15 2026 read: IOPS=1, BW=1569KiB/s (1606kB/s)(6144KiB/3917msec) clat (usec): min=503, max=316396, avg=142268.25, stdev=103200.64 lat (usec): min=504, max=316397, avg=142269.57, stdev=103200.64 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[101188], | 30.00th=[101188], 40.00th=[116917], 50.00th=[116917], 60.00th=[156238], | 70.00th=[162530], 80.00th=[162530], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 3976, max= 6023, per=100.00%, avg=4999.50, stdev=1447.45, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1569KiB/s (1606kB/s)(6144KiB/3917msec); 0 zone resets clat (msec): min=125, max=1835, avg=507.86, stdev=660.34 lat (msec): min=126, max=1835, avg=507.94, stdev=660.38 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 218], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 1988, max= 3580, per=40.08%, avg=2405.75, stdev=783.23, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=26.46%, ctx=191, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180822: Sat Aug 15 19:20:15 2026 read: IOPS=1, BW=1426KiB/s (1460kB/s)(5120KiB/3591msec) clat (usec): min=556, max=331826, avg=118645.39, stdev=135666.84 lat (usec): min=557, max=331827, avg=118646.65, stdev=135666.91 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 553], | 30.00th=[ 652], 40.00th=[ 652], 50.00th=[125305], 60.00th=[125305], | 70.00th=[135267], 80.00th=[135267], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 1988, max= 6144, per=94.84%, avg=4066.00, stdev=2938.74, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1996KiB/s (2044kB/s)(7168KiB/3591msec); 0 zone resets clat (msec): min=80, max=1767, avg=417.38, stdev=601.90 lat (msec): min=81, max=1767, avg=417.48, stdev=601.91 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 121], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 209], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 355], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1825, max= 3976, per=43.52%, avg=2612.00, stdev=1185.92, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=27.80%, ctx=279, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4287KiB/s (4390kB/s), 429KiB/s-2049KiB/s (439kB/s-2098kB/s), io=20.0MiB (20.0MB), run=3498-4777msec WRITE: bw=6002KiB/s (6146kB/s), 1464KiB/s-2144KiB/s (1499kB/s-2195kB/s), io=28.0MiB (29.4MB), run=3498-4777msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180819: Sat Aug 15 19:20:15 2026 read: IOPS=1, BW=1523KiB/s (1560kB/s)(7168KiB/4705msec) clat (msec): min=54, max=1716, avg=422.15, stdev=629.37 lat (msec): min=54, max=1716, avg=422.15, stdev=629.37 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 70], | 30.00th=[ 73], 40.00th=[ 73], 50.00th=[ 103], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 793], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 2023, max= 4096, per=58.29%, avg=2451.60, stdev=919.31, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.22, samples=5 write: IOPS=1, BW=1088KiB/s (1114kB/s)(5120KiB/4705msec); 0 zone resets clat (msec): min=102, max=668, avg=327.31, stdev=238.31 lat (msec): min=102, max=669, avg=327.40, stdev=238.30 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 103], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2023, max= 6144, per=69.35%, avg=4083.50, stdev=2913.99, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (msec) : 100=25.00%, 250=41.67%, 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=8.23%, ctx=86, 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=180821: Sat Aug 15 19:20:15 2026 read: IOPS=0, BW=421KiB/s (431kB/s)(2048KiB/4869msec) clat (msec): min=75, max=164, avg=120.17, stdev=62.76 lat (msec): min=75, max=164, avg=120.17, stdev=62.76 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 77], 60.00th=[ 165], | 70.00th=[ 165], 80.00th=[ 165], 90.00th=[ 165], 95.00th=[ 165], | 99.00th=[ 165], 99.50th=[ 165], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 1868, max= 2048, per=46.55%, avg=1958.00, stdev=127.28, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2103KiB/s (2154kB/s)(10.0MiB/4869msec); 0 zone resets clat (msec): min=93, max=2259, avg=434.17, stdev=659.33 lat (msec): min=93, max=2259, avg=434.26, stdev=659.33 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 99], | 30.00th=[ 114], 40.00th=[ 148], 50.00th=[ 184], 60.00th=[ 203], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 592], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 2023, max= 6144, per=60.74%, avg=3576.50, stdev=1968.66, samples=4 iops : min= 1, max= 6, avg= 3.00, stdev= 2.45, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=12.47%, ctx=376, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180823: Sat Aug 15 19:20:15 2026 read: IOPS=1, BW=1324KiB/s (1356kB/s)(6144KiB/4641msec) clat (msec): min=48, max=713, avg=290.22, stdev=300.21 lat (msec): min=48, max=713, avg=290.22, stdev=300.21 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 89], 50.00th=[ 89], 60.00th=[ 190], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 2023, max= 4096, per=60.69%, avg=2552.50, stdev=1029.06, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1324KiB/s (1356kB/s)(6144KiB/4641msec); 0 zone resets clat (msec): min=65, max=1980, avg=479.44, stdev=746.26 lat (msec): min=65, max=1980, avg=479.52, stdev=746.27 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 97], | 30.00th=[ 97], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 203], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 2023, max= 4096, per=50.52%, avg=2974.50, stdev=1101.20, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=8.33%, 750=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.33%, ctx=103, 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=180824: Sat Aug 15 19:20:15 2026 read: IOPS=1, BW=1144KiB/s (1171kB/s)(5120KiB/4476msec) clat (msec): min=72, max=311, avg=127.30, stdev=103.12 lat (msec): min=72, max=311, avg=127.31, stdev=103.12 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 83], 60.00th=[ 83], | 70.00th=[ 89], 80.00th=[ 89], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 2023, max= 6131, per=96.93%, avg=4077.00, stdev=2904.79, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1601KiB/s (1640kB/s)(7168KiB/4476msec); 0 zone resets clat (msec): min=122, max=1906, avg=530.51, stdev=628.49 lat (msec): min=122, max=1906, avg=530.62, stdev=628.50 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 155], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 625], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 1858, max= 2048, per=33.81%, avg=1991.00, stdev=89.25, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=33.33%, 250=16.67%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.73%, ctx=140, 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=4206KiB/s (4307kB/s), 421KiB/s-1523KiB/s (431kB/s-1560kB/s), io=20.0MiB (20.0MB), run=4476-4869msec WRITE: bw=5889KiB/s (6030kB/s), 1088KiB/s-2103KiB/s (1114kB/s-2154kB/s), io=28.0MiB (29.4MB), run=4476-4869msec 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=180831: Sat Aug 15 19:20:24 2026 read: IOPS=1, BW=4683KiB/s (4795kB/s)(12.0MiB/2624msec) clat (msec): min=465, max=1587, avg=869.36, stdev=623.21 lat (msec): min=465, max=1587, avg=869.36, stdev=623.21 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 6150, max= 8143, per=100.00%, avg=7146.50, stdev=1409.26, 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=21.31%, ctx=1388, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180832: Sat Aug 15 19:20:24 2026 read: IOPS=0, BW=2775KiB/s (2842kB/s)(4096KiB/1476msec) clat (nsec): min=596219k, max=596219k, avg=596218663.00, stdev= 0.00 lat (nsec): min=596221k, max=596221k, avg=596221431.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 5587, max= 5587, per=89.49%, 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=5550KiB/s (5683kB/s)(8192KiB/1476msec); 0 zone resets clat (msec): min=187, max=651, avg=419.53, stdev=328.67 lat (msec): min=187, max=652, avg=420.03, stdev=328.95 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 8143, max= 8143, per=47.24%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.00%, sys=31.93%, ctx=551, 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=180833: Sat Aug 15 19:20:24 2026 write: IOPS=1, BW=6464KiB/s (6619kB/s)(12.0MiB/1901msec); 0 zone resets clat (msec): min=424, max=747, avg=627.42, stdev=176.85 lat (msec): min=424, max=747, avg=627.78, stdev=176.85 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 751], 80.00th=[ 751], 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=16286, max=16286, per=94.48%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=26.21%, ctx=174, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180834: Sat Aug 15 19:20:24 2026 write: IOPS=1, BW=7341KiB/s (7517kB/s)(12.0MiB/1674msec); 0 zone resets clat (msec): min=185, max=1205, avg=547.96, stdev=570.68 lat (msec): min=186, max=1206, avg=548.43, stdev=570.89 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 253], | 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=12487, max=12487, per=72.44%, avg=12487.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.06%, sys=13.93%, ctx=220, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6244KiB/s (6394kB/s), 2775KiB/s-4683KiB/s (2842kB/s-4795kB/s), io=16.0MiB (16.8MB), run=1476-2624msec WRITE: bw=16.8MiB/s (17.7MB/s), 5550KiB/s-7341KiB/s (5683kB/s-7517kB/s), io=32.0MiB (33.6MB), run=1476-1901msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180835: Sat Aug 15 19:20:25 2026 read: IOPS=1, BW=4463KiB/s (4571kB/s)(12.0MiB/2753msec) clat (msec): min=663, max=1172, avg=910.32, stdev=254.85 lat (msec): min=663, max=1172, avg=910.32, stdev=254.85 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=6.80%, ctx=68, 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=180836: Sat Aug 15 19:20:25 2026 read: IOPS=0, BW=1373KiB/s (1406kB/s)(4096KiB/2984msec) clat (nsec): min=1220.4M, max=1220.4M, avg=1220376031.00, stdev= 0.00 lat (nsec): min=1220.4M, max=1220.4M, avg=1220378754.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8192, max= 8192, per=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=2745KiB/s (2811kB/s)(8192KiB/2984msec); 0 zone resets clat (msec): min=105, max=1589, avg=847.33, stdev=1049.09 lat (msec): min=105, max=1589, avg=847.64, stdev=1049.12 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 106], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.90%, ctx=101, 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=180837: Sat Aug 15 19:20:25 2026 write: IOPS=1, BW=4341KiB/s (4445kB/s)(12.0MiB/2831msec); 0 zone resets clat (msec): min=251, max=1427, avg=919.61, stdev=604.21 lat (msec): min=251, max=1427, avg=919.91, stdev=604.32 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1435], 80.00th=[ 1435], 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= 8192, max= 8192, per=74.60%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=7.77%, ctx=79, 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=180838: Sat Aug 15 19:20:25 2026 write: IOPS=1, BW=6865KiB/s (7030kB/s)(12.0MiB/1790msec); 0 zone resets clat (msec): min=160, max=1174, avg=570.29, stdev=534.33 lat (msec): min=160, max=1174, avg=570.58, stdev=534.35 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min=11702, max=11702, per=100.00%, avg=11702.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.11%, sys=14.70%, ctx=60, 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=5491KiB/s (5622kB/s), 1373KiB/s-4463KiB/s (1406kB/s-4571kB/s), io=16.0MiB (16.8MB), run=2753-2984msec WRITE: bw=10.7MiB/s (11.2MB/s), 2745KiB/s-6865KiB/s (2811kB/s-7030kB/s), io=32.0MiB (33.6MB), run=1790-2984msec