== sanity test 398b: DIO and buffer IO race ============== 12:01:08 (1787587268) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.13625 s, 8.2 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=144900: Mon Aug 24 12:03:32 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5992KiB/124554msec) clat (usec): min=32, max=783782, avg=41088.03, stdev=37023.59 lat (usec): min=33, max=783784, avg=41093.30, stdev=37020.34 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 192], 20.00th=[ 19006], | 30.00th=[ 23987], 40.00th=[ 29492], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[168821], 99.50th=[200279], 99.90th=[341836], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 7, max= 118, per=24.98%, avg=47.96, stdev=19.96, samples=243 iops : min= 1, max= 29, avg=11.35, stdev= 5.01, samples=243 write: IOPS=12, BW=50.5KiB/s (51.8kB/s)(6296KiB/124554msec); 0 zone resets clat (usec): min=796, max=513116, avg=39872.94, stdev=43130.25 lat (usec): min=797, max=513119, avg=39878.56, stdev=43129.72 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1172], 10.00th=[ 1270], 20.00th=[ 3195], | 30.00th=[ 7832], 40.00th=[ 18744], 50.00th=[ 30278], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 69731], 90.00th=[ 93848], 95.00th=[116917], | 99.00th=[173016], 99.50th=[219153], 99.90th=[476054], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 119, per=24.99%, avg=50.23, stdev=21.98, samples=244 iops : min= 1, max= 29, avg=11.91, stdev= 5.53, samples=244 lat (usec) : 50=0.46%, 100=4.23%, 250=0.23%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.55% lat (msec) : 2=7.36%, 4=3.55%, 10=5.47%, 20=9.86%, 50=38.38% lat (msec) : 100=23.80%, 250=5.79%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.50%, ctx=6252, 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=144901: Mon Aug 24 12:03:32 2026 read: IOPS=12, BW=48.8KiB/s (49.0kB/s)(5940KiB/121754msec) clat (usec): min=34, max=215563, avg=39496.68, stdev=28106.10 lat (usec): min=34, max=215563, avg=39498.57, stdev=28106.23 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 60], 10.00th=[ 644], 20.00th=[ 18482], | 30.00th=[ 23462], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[145753], 99.90th=[179307], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 5, max= 127, per=25.19%, avg=48.36, stdev=21.36, samples=240 iops : min= 1, max= 31, avg=11.45, stdev= 5.36, samples=240 write: IOPS=13, BW=52.1KiB/s (53.4kB/s)(6348KiB/121754msec); 0 zone resets clat (usec): min=665, max=743268, avg=39625.36, stdev=45651.75 lat (usec): min=665, max=743270, avg=39628.43, stdev=45652.70 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1254], 20.00th=[ 3458], | 30.00th=[ 8291], 40.00th=[ 18744], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[116917], | 99.00th=[166724], 99.50th=[198181], 99.90th=[484443], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 111, per=25.84%, avg=51.94, stdev=22.40, samples=239 iops : min= 1, max= 27, avg=12.34, stdev= 5.64, samples=239 lat (usec) : 50=0.39%, 100=4.20%, 250=0.13%, 500=0.07%, 750=0.13% lat (usec) : 1000=0.10% lat (msec) : 2=8.07%, 4=3.16%, 10=5.73%, 20=10.68%, 50=37.50% lat (msec) : 100=23.80%, 250=5.92%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.60%, ctx=6167, 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=144902: Mon Aug 24 12:03:32 2026 read: IOPS=12, BW=48.5KiB/s (49.6kB/s)(6028KiB/124363msec) clat (usec): min=30, max=391472, avg=41078.66, stdev=32123.36 lat (usec): min=30, max=391473, avg=41081.57, stdev=32122.98 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 922], 20.00th=[ 18482], | 30.00th=[ 23987], 40.00th=[ 28967], 50.00th=[ 34866], 60.00th=[ 42730], | 70.00th=[ 49021], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[145753], 99.50th=[175113], 99.90th=[240124], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 7, max= 102, per=25.08%, avg=48.16, stdev=21.06, samples=244 iops : min= 1, max= 25, avg=11.38, stdev= 5.29, samples=244 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6260KiB/124363msec); 0 zone resets clat (usec): min=773, max=653392, avg=39802.38, stdev=44405.70 lat (usec): min=774, max=653393, avg=39811.21, stdev=44404.16 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1188], 10.00th=[ 1500], 20.00th=[ 3752], | 30.00th=[ 7570], 40.00th=[ 17171], 50.00th=[ 28443], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[177210], 99.50th=[208667], 99.90th=[501220], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 5, max= 119, per=24.77%, avg=49.79, stdev=21.04, samples=245 iops : min= 1, max= 29, avg=11.81, stdev= 5.27, samples=245 lat (usec) : 50=0.59%, 100=4.04%, 250=0.23%, 750=0.03%, 1000=0.16% lat (msec) : 2=6.58%, 4=3.97%, 10=6.84%, 20=10.58%, 50=35.87% lat (msec) : 100=25.00%, 250=5.96%, 500=0.10%, 750=0.07% cpu : usr=0.07%, sys=4.55%, ctx=6185, 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=144903: Mon Aug 24 12:03:32 2026 read: IOPS=12, BW=49.2KiB/s (50.4kB/s)(6052KiB/122963msec) clat (usec): min=36, max=263297, avg=39626.96, stdev=29485.18 lat (usec): min=36, max=263298, avg=39628.90, stdev=29485.27 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 570], 20.00th=[ 18482], | 30.00th=[ 25035], 40.00th=[ 29230], 50.00th=[ 33817], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[158335], 99.90th=[198181], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 104, per=25.71%, avg=49.36, stdev=20.89, samples=239 iops : min= 1, max= 26, avg=11.69, stdev= 5.25, samples=239 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6236KiB/122963msec); 0 zone resets clat (usec): min=710, max=740678, avg=40310.69, stdev=46093.00 lat (usec): min=711, max=740679, avg=40314.42, stdev=46091.59 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1172], 10.00th=[ 1287], 20.00th=[ 2999], | 30.00th=[ 6980], 40.00th=[ 17171], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[125305], | 99.00th=[179307], 99.50th=[219153], 99.90th=[316670], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 119, per=25.03%, avg=50.32, stdev=22.10, samples=241 iops : min= 1, max= 29, avg=11.93, stdev= 5.53, samples=241 lat (usec) : 50=0.68%, 100=3.71%, 250=0.42%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=7.29%, 4=4.33%, 10=5.60%, 20=9.70%, 50=38.22% lat (msec) : 100=22.75%, 250=6.61%, 500=0.13%, 750=0.03% cpu : usr=0.07%, sys=4.51%, ctx=6193, 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=193KiB/s (197kB/s), 48.1KiB/s-49.2KiB/s (49.3kB/s-50.4kB/s), io=23.4MiB (24.6MB), run=121754-124554msec WRITE: bw=202KiB/s (207kB/s), 50.3KiB/s-52.1KiB/s (51.5kB/s-53.4kB/s), io=24.6MiB (25.7MB), run=121754-124554msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144895: Mon Aug 24 12:06:01 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(5992KiB/273946msec) clat (msec): min=4, max=766, avg=34.23, stdev=40.77 lat (msec): min=4, max=766, avg=34.24, stdev=40.77 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 71], 95.00th=[ 101], | 99.00th=[ 197], 99.50th=[ 228], 99.90th=[ 443], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 112, per=28.48%, avg=24.78, stdev=16.75, samples=466 iops : min= 1, max= 28, avg= 5.58, stdev= 4.23, samples=466 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6296KiB/273946msec); 0 zone resets clat (msec): min=27, max=624, avg=141.20, stdev=65.53 lat (msec): min=27, max=624, avg=141.20, stdev=65.53 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 115], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 226], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 397], 99.90th=[ 609], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 56, per=24.89%, avg=22.65, stdev= 9.98, samples=533 iops : min= 1, max= 14, avg= 5.04, stdev= 2.56, samples=533 lat (msec) : 10=4.36%, 20=16.86%, 50=20.05%, 100=19.76%, 250=35.51% lat (msec) : 500=3.29%, 750=0.13%, 1000=0.03% cpu : usr=0.04%, sys=1.03%, ctx=4965, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144896: Mon Aug 24 12:06:01 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(5940KiB/273639msec) clat (msec): min=3, max=680, avg=33.42, stdev=38.28 lat (msec): min=3, max=680, avg=33.42, stdev=38.29 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 72], 95.00th=[ 102], | 99.00th=[ 190], 99.50th=[ 226], 99.90th=[ 334], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 7, max= 102, per=28.04%, avg=24.39, stdev=17.07, samples=470 iops : min= 1, max= 25, avg= 5.48, stdev= 4.32, samples=470 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6348KiB/273639msec); 0 zone resets clat (msec): min=27, max=626, avg=140.90, stdev=65.53 lat (msec): min=27, max=626, avg=140.90, stdev=65.53 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 129], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 334], 99.50th=[ 405], 99.90th=[ 592], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 56, per=25.12%, avg=22.86, stdev=10.16, samples=535 iops : min= 1, max= 14, avg= 5.09, stdev= 2.61, samples=535 lat (msec) : 4=0.03%, 10=4.56%, 20=17.29%, 50=18.91%, 100=19.79% lat (msec) : 250=35.71%, 500=3.52%, 750=0.20% cpu : usr=0.04%, sys=1.07%, ctx=5124, 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=144897: Mon Aug 24 12:06:01 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6028KiB/273110msec) clat (msec): min=4, max=556, avg=35.24, stdev=35.93 lat (msec): min=4, max=556, avg=35.24, stdev=35.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 105], | 99.00th=[ 167], 99.50th=[ 201], 99.90th=[ 296], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 7, max= 104, per=27.93%, avg=24.30, stdev=16.88, samples=479 iops : min= 1, max= 26, avg= 5.45, stdev= 4.29, samples=479 write: IOPS=5, BW=22.9KiB/s (23.5kB/s)(6260KiB/273110msec); 0 zone resets clat (msec): min=35, max=824, avg=140.30, stdev=66.19 lat (msec): min=35, max=824, avg=140.31, stdev=66.20 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 74], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 351], 99.50th=[ 405], 99.90th=[ 625], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 56, per=24.81%, avg=22.57, stdev=10.41, samples=534 iops : min= 1, max= 14, avg= 5.02, stdev= 2.66, samples=534 lat (msec) : 10=4.72%, 20=16.67%, 50=18.65%, 100=20.74%, 250=36.20% lat (msec) : 500=2.90%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5025, 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=144898: Mon Aug 24 12:06:01 2026 read: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6052KiB/272864msec) clat (msec): min=4, max=566, avg=35.62, stdev=38.92 lat (msec): min=4, max=566, avg=35.62, stdev=38.92 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 80], 95.00th=[ 111], | 99.00th=[ 194], 99.50th=[ 220], 99.90th=[ 321], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 95, per=28.62%, avg=24.90, stdev=16.63, samples=470 iops : min= 1, max= 23, avg= 5.61, stdev= 4.19, samples=470 write: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6236KiB/272864msec); 0 zone resets clat (msec): min=38, max=721, avg=140.20, stdev=63.45 lat (msec): min=38, max=721, avg=140.20, stdev=63.45 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 102], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 224], 95.00th=[ 259], | 99.00th=[ 338], 99.50th=[ 363], 99.90th=[ 527], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 56, per=24.67%, avg=22.45, stdev=10.17, samples=534 iops : min= 1, max= 14, avg= 4.99, stdev= 2.61, samples=534 lat (msec) : 10=4.92%, 20=16.15%, 50=19.79%, 100=20.05%, 250=35.97% lat (msec) : 500=3.03%, 750=0.10% cpu : usr=0.04%, sys=1.02%, ctx=5032, 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=87.7KiB/s (89.8kB/s), 21.7KiB/s-22.2KiB/s (22.2kB/s-22.7kB/s), io=23.4MiB (24.6MB), run=272864-273946msec WRITE: bw=91.8KiB/s (93.0kB/s), 22.9KiB/s-23.2KiB/s (23.4kB/s-23.8kB/s), io=24.6MiB (25.7MB), run=272864-273946msec 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=144955: Mon Aug 24 12:06:40 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5920KiB/30199msec) clat (usec): min=31, max=312225, avg=41563.76, stdev=34741.06 lat (usec): min=31, max=312226, avg=41565.08, stdev=34741.14 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 143], | 30.00th=[ 24773], 40.00th=[ 30278], 50.00th=[ 38011], 60.00th=[ 46924], | 70.00th=[ 53216], 80.00th=[ 67634], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[139461], 99.50th=[200279], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 32, max= 407, per=25.85%, avg=196.22, stdev=79.21, samples=59 iops : min= 2, max= 25, avg=11.51, stdev= 4.98, samples=59 write: IOPS=13, BW=211KiB/s (216kB/s)(6368KiB/30199msec); 0 zone resets clat (usec): min=1392, max=313703, avg=36962.88, stdev=43324.33 lat (usec): min=1394, max=313706, avg=36968.60, stdev=43321.83 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1729], 10.00th=[ 2474], 20.00th=[ 4948], | 30.00th=[ 7570], 40.00th=[ 11600], 50.00th=[ 19530], 60.00th=[ 31065], | 70.00th=[ 44303], 80.00th=[ 64226], 90.00th=[100140], 95.00th=[129500], | 99.00th=[175113], 99.50th=[206570], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 31, max= 443, per=26.45%, avg=211.08, stdev=91.33, samples=59 iops : min= 1, max= 27, avg=12.44, stdev= 5.72, samples=59 lat (usec) : 50=1.69%, 100=7.42%, 250=0.78%, 500=0.26%, 1000=0.13% lat (msec) : 2=4.43%, 4=4.43%, 10=10.16%, 20=9.24%, 50=30.86% lat (msec) : 100=23.57%, 250=6.77%, 500=0.26% cpu : usr=0.06%, sys=4.81%, ctx=1343, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144956: Mon Aug 24 12:06:40 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5744KiB/31543msec) clat (usec): min=39, max=477275, avg=46734.87, stdev=44235.11 lat (usec): min=39, max=477276, avg=46737.47, stdev=44234.32 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 14615], | 30.00th=[ 25035], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 47973], | 70.00th=[ 56361], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[110625], | 99.00th=[164627], 99.50th=[283116], 99.90th=[476054], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 31, max= 414, per=24.32%, avg=184.61, stdev=76.39, samples=61 iops : min= 1, max= 25, avg=10.77, stdev= 4.78, samples=61 write: IOPS=12, BW=207KiB/s (212kB/s)(6544KiB/31543msec); 0 zone resets clat (usec): min=1389, max=218945, avg=35543.47, stdev=37976.67 lat (usec): min=1391, max=218959, avg=35550.68, stdev=37977.92 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1696], 10.00th=[ 1942], 20.00th=[ 4883], | 30.00th=[ 7898], 40.00th=[ 13829], 50.00th=[ 22414], 60.00th=[ 33424], | 70.00th=[ 47449], 80.00th=[ 60556], 90.00th=[ 84411], 95.00th=[112722], | 99.00th=[164627], 99.50th=[200279], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 447, per=25.93%, avg=206.90, stdev=87.80, samples=62 iops : min= 1, max= 27, avg=12.16, stdev= 5.56, samples=62 lat (usec) : 50=0.52%, 100=6.38%, 250=0.39%, 500=0.26%, 1000=0.26% lat (msec) : 2=5.99%, 4=3.78%, 10=8.85%, 20=10.16%, 50=31.12% lat (msec) : 100=24.22%, 250=7.81%, 500=0.26% cpu : usr=0.08%, sys=4.97%, ctx=1399, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144957: Mon Aug 24 12:06:40 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(6256KiB/31121msec) clat (usec): min=39, max=224443, avg=43870.54, stdev=35184.20 lat (usec): min=39, max=224444, avg=43871.92, stdev=35184.15 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 155], | 30.00th=[ 24249], 40.00th=[ 32375], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[133694], 99.50th=[154141], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 54, max= 506, per=26.63%, avg=202.11, stdev=88.88, samples=61 iops : min= 3, max= 31, avg=11.89, stdev= 5.65, samples=61 write: IOPS=12, BW=194KiB/s (198kB/s)(6032KiB/31121msec); 0 zone resets clat (usec): min=1022, max=278036, avg=36409.89, stdev=44767.38 lat (usec): min=1023, max=278039, avg=36413.20, stdev=44766.82 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1680], 10.00th=[ 1860], 20.00th=[ 4080], | 30.00th=[ 6915], 40.00th=[ 10290], 50.00th=[ 17695], 60.00th=[ 29492], | 70.00th=[ 44303], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[123208], | 99.00th=[208667], 99.50th=[265290], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 62, max= 415, per=24.15%, avg=192.72, stdev=86.89, samples=61 iops : min= 3, max= 25, avg=11.28, stdev= 5.45, samples=61 lat (usec) : 50=0.65%, 100=8.98%, 250=0.78%, 500=0.39%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=5.60%, 4=4.43%, 10=9.77%, 20=8.07%, 50=28.65% lat (msec) : 100=25.39%, 250=6.77%, 500=0.26% cpu : usr=0.06%, sys=4.68%, ctx=1287, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144958: Mon Aug 24 12:06:40 2026 read: IOPS=12, BW=201KiB/s (206kB/s)(6032KiB/30013msec) clat (usec): min=29, max=362414, avg=44587.94, stdev=40922.68 lat (usec): min=29, max=362415, avg=44589.14, stdev=40922.67 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 95], | 30.00th=[ 23200], 40.00th=[ 32637], 50.00th=[ 39060], 60.00th=[ 49546], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[196084], 99.50th=[210764], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 31, max= 445, per=26.28%, avg=199.47, stdev=85.39, samples=59 iops : min= 1, max= 27, avg=11.71, stdev= 5.36, samples=59 write: IOPS=13, BW=208KiB/s (213kB/s)(6256KiB/30013msec); 0 zone resets clat (usec): min=1155, max=200443, avg=33333.12, stdev=38586.36 lat (usec): min=1159, max=200444, avg=33349.72, stdev=38603.19 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1614], 10.00th=[ 1778], 20.00th=[ 3589], | 30.00th=[ 6128], 40.00th=[ 10290], 50.00th=[ 14484], 60.00th=[ 25822], | 70.00th=[ 41681], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[108528], | 99.00th=[177210], 99.50th=[185598], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 31, max= 509, per=26.13%, avg=208.51, stdev=89.55, samples=59 iops : min= 1, max= 31, avg=12.27, stdev= 5.62, samples=59 lat (usec) : 50=1.30%, 100=8.72%, 250=1.04%, 1000=0.26% lat (msec) : 2=7.42%, 4=4.04%, 10=9.38%, 20=10.03%, 50=25.26% lat (msec) : 100=25.65%, 250=6.77%, 500=0.13% cpu : usr=0.07%, sys=5.00%, ctx=1309, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=759KiB/s (778kB/s), 182KiB/s-201KiB/s (186kB/s-206kB/s), io=23.4MiB (24.5MB), run=30013-31543msec WRITE: bw=799KiB/s (818kB/s), 194KiB/s-211KiB/s (198kB/s-216kB/s), io=24.6MiB (25.8MB), run=30013-31543msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144960: Mon Aug 24 12:07:22 2026 read: IOPS=5, BW=83.3KiB/s (85.3kB/s)(5920KiB/71033msec) clat (msec): min=4, max=342, avg=40.99, stdev=40.42 lat (msec): min=4, max=342, avg=40.99, stdev=40.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 81], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 211], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 383, per=27.63%, avg=92.02, stdev=59.49, samples=126 iops : min= 1, max= 23, avg= 4.97, stdev= 3.72, samples=126 write: IOPS=5, BW=89.6KiB/s (91.8kB/s)(6368KiB/71033msec); 0 zone resets clat (msec): min=46, max=460, avg=140.15, stdev=70.16 lat (msec): min=46, max=460, avg=140.17, stdev=70.16 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 110], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 182], 90.00th=[ 226], 95.00th=[ 292], | 99.00th=[ 401], 99.50th=[ 443], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 22, max= 191, per=26.32%, avg=92.12, stdev=40.40, samples=136 iops : min= 1, max= 11, avg= 4.96, stdev= 2.57, samples=136 lat (msec) : 10=1.69%, 20=13.67%, 50=21.61%, 100=22.79%, 250=35.81% lat (msec) : 500=4.43% cpu : usr=0.05%, sys=1.16%, ctx=1378, 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=144961: Mon Aug 24 12:07:22 2026 read: IOPS=4, BW=79.0KiB/s (81.9kB/s)(5744KiB/71840msec) clat (msec): min=6, max=425, avg=44.33, stdev=47.13 lat (msec): min=6, max=425, avg=44.33, stdev=47.13 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 94], 95.00th=[ 136], | 99.00th=[ 253], 99.50th=[ 330], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 22, max= 286, per=27.76%, avg=92.45, stdev=54.98, samples=120 iops : min= 1, max= 17, avg= 5.00, stdev= 3.44, samples=120 write: IOPS=5, BW=91.1KiB/s (93.3kB/s)(6544KiB/71840msec); 0 zone resets clat (msec): min=33, max=551, avg=136.58, stdev=71.70 lat (msec): min=33, max=551, avg=136.58, stdev=71.70 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 54], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 108], 50.00th=[ 120], 60.00th=[ 134], | 70.00th=[ 150], 80.00th=[ 182], 90.00th=[ 234], 95.00th=[ 279], | 99.00th=[ 384], 99.50th=[ 439], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 320, per=26.37%, avg=92.28, stdev=46.14, samples=137 iops : min= 1, max= 20, avg= 4.97, stdev= 2.98, samples=137 lat (msec) : 10=1.82%, 20=10.94%, 50=24.61%, 100=23.44%, 250=34.64% lat (msec) : 500=4.43%, 750=0.13% cpu : usr=0.04%, sys=1.17%, ctx=1272, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144962: Mon Aug 24 12:07:22 2026 read: IOPS=5, BW=90.4KiB/s (92.6kB/s)(6256KiB/69186msec) clat (msec): min=7, max=421, avg=40.40, stdev=44.14 lat (msec): min=7, max=421, avg=40.40, stdev=44.14 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 51], 90.00th=[ 73], 95.00th=[ 129], | 99.00th=[ 236], 99.50th=[ 351], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 30, max= 320, per=30.41%, avg=101.28, stdev=70.15, samples=122 iops : min= 1, max= 20, avg= 5.53, stdev= 4.47, samples=122 write: IOPS=5, BW=87.2KiB/s (89.3kB/s)(6032KiB/69186msec); 0 zone resets clat (msec): min=44, max=447, avg=141.46, stdev=73.88 lat (msec): min=44, max=447, avg=141.46, stdev=73.88 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 126], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 184], 90.00th=[ 241], 95.00th=[ 313], | 99.00th=[ 393], 99.50th=[ 435], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 30, max= 160, per=24.88%, avg=87.07, stdev=39.41, samples=135 iops : min= 1, max= 10, avg= 4.64, stdev= 2.52, samples=135 lat (msec) : 10=1.43%, 20=14.32%, 50=25.39%, 100=22.79%, 250=31.12% lat (msec) : 500=4.95% cpu : usr=0.04%, sys=1.25%, ctx=1359, 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=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=144963: Mon Aug 24 12:07:22 2026 read: IOPS=5, BW=84.9KiB/s (86.9kB/s)(6032KiB/71081msec) clat (msec): min=5, max=280, avg=40.26, stdev=35.84 lat (msec): min=5, max=280, avg=40.28, stdev=35.85 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 121], | 99.00th=[ 194], 99.50th=[ 209], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 30, max= 318, per=28.51%, avg=94.94, stdev=65.93, samples=124 iops : min= 1, max= 19, avg= 5.11, stdev= 4.19, samples=124 write: IOPS=5, BW=88.0KiB/s (90.1kB/s)(6256KiB/71081msec); 0 zone resets clat (msec): min=41, max=497, avg=142.82, stdev=68.67 lat (msec): min=41, max=497, avg=142.83, stdev=68.67 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 114], 50.00th=[ 129], 60.00th=[ 144], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 464], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 191, per=25.18%, avg=88.12, stdev=39.10, samples=139 iops : min= 1, max= 11, avg= 4.71, stdev= 2.48, samples=139 lat (msec) : 10=1.95%, 20=11.98%, 50=25.26%, 100=21.88%, 250=34.77% lat (msec) : 500=4.17% cpu : usr=0.03%, sys=1.20%, ctx=1333, 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=333KiB/s (341kB/s), 79.0KiB/s-90.4KiB/s (81.9kB/s-92.6kB/s), io=23.4MiB (24.5MB), run=69186-71840msec WRITE: bw=351KiB/s (359kB/s), 87.2KiB/s-91.1KiB/s (89.3kB/s-93.3kB/s), io=24.6MiB (25.8MB), run=69186-71840msec 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=144988: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1562KiB/s (1599kB/s)(7168KiB/4590msec) clat (msec): min=41, max=221, avg=167.26, stdev=59.27 lat (msec): min=41, max=221, avg=167.26, stdev=59.27 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 165], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 176], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 222], | 99.00th=[ 222], 99.50th=[ 222], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 1992, max= 3900, per=53.77%, avg=2398.60, stdev=839.53, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1115KiB/s (1142kB/s)(5120KiB/4590msec); 0 zone resets clat (msec): min=148, max=1373, avg=637.95, stdev=504.19 lat (msec): min=148, max=1373, avg=638.04, stdev=504.18 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 2011, max= 5976, per=53.42%, avg=3336.67, stdev=2285.74, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 250=58.33%, 500=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.17%, ctx=271, 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=144989: Mon Aug 24 12:07:37 2026 read: IOPS=0, BW=535KiB/s (548kB/s)(2048KiB/3826msec) clat (msec): min=31, max=172, avg=101.66, stdev=99.50 lat (msec): min=31, max=172, avg=101.66, stdev=99.50 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 32], 10.00th=[ 32], 20.00th=[ 32], | 30.00th=[ 32], 40.00th=[ 32], 50.00th=[ 32], 60.00th=[ 174], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 174], 95.00th=[ 174], | 99.00th=[ 174], 99.50th=[ 174], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 1996, max= 2035, per=45.18%, avg=2015.50, stdev=27.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2676KiB/s (2741kB/s)(10.0MiB/3826msec); 0 zone resets clat (msec): min=75, max=701, avg=333.68, stdev=193.89 lat (msec): min=75, max=701, avg=334.42, stdev=193.68 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 129], | 30.00th=[ 228], 40.00th=[ 253], 50.00th=[ 264], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 514], 90.00th=[ 531], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 2023, max= 4087, per=48.20%, avg=3010.67, stdev=1074.81, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 50=8.33%, 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=11.42%, ctx=188, 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=144990: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1927KiB/s (1973kB/s)(6144KiB/3189msec) clat (usec): min=347, max=292292, avg=97743.25, stdev=144346.77 lat (usec): min=347, max=292293, avg=97744.52, stdev=144346.99 clat percentiles (usec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 619], | 30.00th=[ 619], 40.00th=[ 799], 50.00th=[ 799], 60.00th=[ 17171], | 70.00th=[274727], 80.00th=[274727], 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= 2035, max= 6107, per=91.26%, avg=4071.00, stdev=2879.34, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1927KiB/s (1973kB/s)(6144KiB/3189msec); 0 zone resets clat (msec): min=105, max=961, avg=394.73, stdev=317.25 lat (msec): min=105, max=961, avg=394.83, stdev=317.24 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 351], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1943, max= 4071, per=39.85%, avg=2489.00, stdev=1054.89, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 20=8.33%, 250=16.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=9.44%, ctx=109, 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=144991: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1205KiB/s (1234kB/s)(5120KiB/4249msec) clat (usec): min=508, max=1111.3k, avg=308749.34, stdev=463282.04 lat (usec): min=510, max=1111.3k, avg=308750.71, stdev=463282.22 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], | 20.00th=[ 510], 30.00th=[ 19006], 40.00th=[ 19006], | 50.00th=[ 121111], 60.00th=[ 121111], 70.00th=[ 291505], | 80.00th=[ 291505], 90.00th=[1115685], 95.00th=[1115685], | 99.00th=[1115685], 99.50th=[1115685], 99.90th=[1115685], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 1992, max= 6047, per=90.10%, avg=4019.50, stdev=2867.32, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1687KiB/s (1727kB/s)(7168KiB/4249msec); 0 zone resets clat (msec): min=86, max=876, avg=377.92, stdev=296.01 lat (msec): min=87, max=876, avg=378.02, stdev=296.01 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 97], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 317], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 667], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1943, max= 4031, per=38.37%, avg=2396.40, stdev=914.71, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 20=8.33%, 100=16.67%, 250=16.67%, 500=25.00%, 750=8.33% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=7.84%, ctx=295, 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=4462KiB/s (4569kB/s), 535KiB/s-1927KiB/s (548kB/s-1973kB/s), io=20.0MiB (20.0MB), run=3189-4590msec WRITE: bw=6247KiB/s (6397kB/s), 1115KiB/s-2676KiB/s (1142kB/s-2741kB/s), io=28.0MiB (29.4MB), run=3189-4590msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144983: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1692KiB/s (1733kB/s)(7168KiB/4236msec) clat (msec): min=99, max=270, avg=192.20, stdev=73.79 lat (msec): min=99, max=270, avg=192.20, stdev=73.79 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 127], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 1988, max= 4055, per=63.93%, avg=2702.25, stdev=961.79, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1209KiB/s (1238kB/s)(5120KiB/4236msec); 0 zone resets clat (msec): min=201, max=1409, avg=547.55, stdev=489.38 lat (msec): min=201, max=1409, avg=547.63, stdev=489.38 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1988, max= 4055, per=45.55%, avg=2695.33, stdev=1177.83, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, 2000=8.33% cpu : usr=0.00%, sys=2.48%, ctx=62, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144984: Mon Aug 24 12:07:37 2026 read: IOPS=0, BW=439KiB/s (449kB/s)(2048KiB/4670msec) clat (msec): min=144, max=353, avg=249.14, stdev=147.39 lat (msec): min=144, max=353, avg=249.15, stdev=147.39 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 2027, max= 2039, per=48.10%, avg=2033.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2193KiB/s (2245kB/s)(10.0MiB/4670msec); 0 zone resets clat (msec): min=164, max=625, avg=394.08, stdev=169.03 lat (msec): min=173, max=626, avg=395.09, stdev=167.65 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 178], | 30.00th=[ 226], 40.00th=[ 321], 50.00th=[ 363], 60.00th=[ 468], | 70.00th=[ 481], 80.00th=[ 542], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1976, max= 4071, per=43.98%, avg=2602.57, stdev=997.90, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.00%, sys=4.01%, ctx=78, 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=144985: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1268KiB/s (1299kB/s)(6144KiB/4845msec) clat (msec): min=35, max=1510, avg=428.39, stdev=550.76 lat (msec): min=35, max=1510, avg=428.39, stdev=550.76 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 36], 10.00th=[ 36], 20.00th=[ 59], | 30.00th=[ 59], 40.00th=[ 226], 50.00th=[ 226], 60.00th=[ 317], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 2015, max= 4047, per=63.79%, avg=2696.33, stdev=1169.73, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1268KiB/s (1299kB/s)(6144KiB/4845msec); 0 zone resets clat (msec): min=89, max=949, avg=340.93, stdev=309.45 lat (msec): min=89, max=949, avg=341.05, stdev=309.50 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 275], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1992, max= 2043, per=34.21%, avg=2024.25, stdev=22.47, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=25.00%, 500=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.04%, sys=2.50%, ctx=57, 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=144986: Mon Aug 24 12:07:37 2026 read: IOPS=1, BW=1529KiB/s (1566kB/s)(5120KiB/3348msec) clat (msec): min=115, max=421, avg=259.18, stdev=121.08 lat (msec): min=115, max=421, avg=259.18, stdev=121.08 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 230], 60.00th=[ 230], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 3953, max= 4087, per=95.10%, avg=4020.00, stdev=94.75, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2141KiB/s (2192kB/s)(7168KiB/3348msec); 0 zone resets clat (msec): min=161, max=467, avg=289.37, stdev=117.87 lat (msec): min=161, max=467, avg=289.48, stdev=117.87 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 176], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 275], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 426], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1976, max= 4055, per=47.81%, avg=2828.80, stdev=1119.58, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=50.00%, 500=50.00% cpu : usr=0.00%, sys=3.32%, ctx=52, 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=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=4227KiB/s (4328kB/s), 439KiB/s-1692KiB/s (449kB/s-1733kB/s), io=20.0MiB (20.0MB), run=3348-4845msec WRITE: bw=5918KiB/s (6060kB/s), 1209KiB/s-2193KiB/s (1238kB/s-2245kB/s), io=28.0MiB (29.4MB), run=3348-4845msec 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=144999: Mon Aug 24 12:07:51 2026 read: IOPS=1, BW=4607KiB/s (4718kB/s)(12.0MiB/2667msec) clat (msec): min=767, max=943, avg=848.87, stdev=88.86 lat (msec): min=767, max=944, avg=849.06, stdev=89.17 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7656, max= 8015, per=100.00%, avg=7835.50, stdev=253.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=9.68%, ctx=272, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145000: Mon Aug 24 12:07:51 2026 read: IOPS=0, BW=1931KiB/s (1978kB/s)(4096KiB/2121msec) clat (nsec): min=766063k, max=766063k, avg=766063253.00, stdev= 0.00 lat (nsec): min=766067k, max=766067k, avg=766066813.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3862KiB/s (3955kB/s)(8192KiB/2121msec); 0 zone resets clat (msec): min=308, max=974, avg=641.13, stdev=470.81 lat (msec): min=311, max=982, avg=646.71, stdev=474.34 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 978], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 8015, max= 8015, per=77.10%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=8.44%, ctx=147, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145001: Mon Aug 24 12:07:51 2026 write: IOPS=0, BW=3898KiB/s (3992kB/s)(12.0MiB/3152msec); 0 zone resets clat (msec): min=373, max=1646, avg=1030.83, stdev=637.61 lat (msec): min=373, max=1646, avg=1031.23, stdev=637.51 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8015, max= 8015, per=77.10%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.71%, ctx=74, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145002: Mon Aug 24 12:07:51 2026 write: IOPS=1, BW=5122KiB/s (5245kB/s)(12.0MiB/2399msec); 0 zone resets clat (msec): min=243, max=1604, avg=765.74, stdev=733.71 lat (msec): min=244, max=1604, avg=766.07, stdev=733.68 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 5777, max= 8015, per=66.34%, avg=6896.00, stdev=1582.50, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.00%, ctx=48, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6143KiB/s (6291kB/s), 1931KiB/s-4607KiB/s (1978kB/s-4718kB/s), io=16.0MiB (16.8MB), run=2121-2667msec WRITE: bw=10.2MiB/s (10.6MB/s), 3862KiB/s-5122KiB/s (3955kB/s-5245kB/s), io=32.0MiB (33.6MB), run=2121-3152msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145004: Mon Aug 24 12:07:51 2026 read: IOPS=1, BW=5418KiB/s (5548kB/s)(12.0MiB/2268msec) clat (msec): min=312, max=1175, avg=755.78, stdev=432.29 lat (msec): min=312, max=1175, avg=755.78, stdev=432.29 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.40%, ctx=37, 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=145005: Mon Aug 24 12:07:51 2026 read: IOPS=0, BW=1495KiB/s (1531kB/s)(4096KiB/2740msec) clat (nsec): min=882196k, max=882196k, avg=882196498.00, stdev= 0.00 lat (nsec): min=882199k, max=882199k, avg=882198586.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7922, max= 7922, per=100.00%, avg=7922.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2990KiB/s (3062kB/s)(8192KiB/2740msec); 0 zone resets clat (msec): min=563, max=1292, avg=927.97, stdev=515.63 lat (msec): min=563, max=1293, avg=928.53, stdev=515.85 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8175, max= 8175, per=78.09%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.63%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145006: Mon Aug 24 12:07:51 2026 write: IOPS=0, BW=3926KiB/s (4020kB/s)(12.0MiB/3130msec); 0 zone resets clat (msec): min=190, max=1576, avg=1042.35, stdev=745.74 lat (msec): min=191, max=1576, avg=1042.93, stdev=745.44 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8062, max= 8175, per=77.55%, avg=8118.50, stdev=79.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.97%, ctx=30, 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=145007: Mon Aug 24 12:07:51 2026 write: IOPS=1, BW=5387KiB/s (5516kB/s)(12.0MiB/2281msec); 0 zone resets clat (msec): min=252, max=1629, avg=755.55, stdev=759.70 lat (msec): min=252, max=1630, avg=757.68, stdev=758.84 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 6907, max= 7922, per=70.82%, avg=7414.50, stdev=717.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.42%, ctx=40, 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=5980KiB/s (6123kB/s), 1495KiB/s-5418KiB/s (1531kB/s-5548kB/s), io=16.0MiB (16.8MB), run=2268-2740msec WRITE: bw=10.2MiB/s (10.7MB/s), 2990KiB/s-5387KiB/s (3062kB/s-5516kB/s), io=32.0MiB (33.6MB), run=2281-3130msec