== sanity test 398b: DIO and buffer IO race ============== 07:32:40 (1781609560) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.36109 s, 21.3 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=184345: Tue Jun 16 07:33:59 2026 read: IOPS=20, BW=83.8KiB/s (85.8kB/s)(5992KiB/71511msec) clat (usec): min=78, max=654195, avg=26161.83, stdev=20908.39 lat (usec): min=79, max=654195, avg=26166.89, stdev=20908.13 clat percentiles (usec): | 1.00th=[ 149], 5.00th=[ 8356], 10.00th=[ 11338], 20.00th=[ 15008], | 30.00th=[ 18220], 40.00th=[ 21103], 50.00th=[ 24249], 60.00th=[ 27395], | 70.00th=[ 30802], 80.00th=[ 35390], 90.00th=[ 42730], 95.00th=[ 49021], | 99.00th=[ 65274], 99.50th=[ 73925], 99.90th=[115868], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 12, max= 200, per=24.85%, avg=83.25, stdev=26.06, samples=142 iops : min= 3, max= 50, avg=20.30, stdev= 6.58, samples=142 write: IOPS=22, BW=88.0KiB/s (90.2kB/s)(6296KiB/71511msec); 0 zone resets clat (usec): min=616, max=86052, avg=20417.29, stdev=13751.15 lat (usec): min=617, max=86053, avg=20418.17, stdev=13751.18 clat percentiles (usec): | 1.00th=[ 2089], 5.00th=[ 3589], 10.00th=[ 5538], 20.00th=[ 7570], | 30.00th=[10814], 40.00th=[14353], 50.00th=[17957], 60.00th=[21365], | 70.00th=[25560], 80.00th=[31589], 90.00th=[40109], 95.00th=[46400], | 99.00th=[60556], 99.50th=[64226], 99.90th=[74974], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 31, max= 216, per=25.11%, avg=88.13, stdev=31.90, samples=141 iops : min= 7, max= 54, avg=21.52, stdev= 8.01, samples=141 lat (usec) : 100=0.07%, 250=1.17%, 500=0.13%, 750=0.03%, 1000=0.03% lat (msec) : 2=0.39%, 4=2.60%, 10=13.31%, 20=28.58%, 50=49.64% lat (msec) : 100=3.94%, 250=0.07%, 750=0.03% cpu : usr=0.09%, sys=27.25%, ctx=11315, 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=184346: Tue Jun 16 07:33:59 2026 read: IOPS=21, BW=84.5KiB/s (86.6kB/s)(5940KiB/70259msec) clat (usec): min=43, max=90304, avg=25048.02, stdev=12405.53 lat (usec): min=43, max=90304, avg=25049.50, stdev=12405.77 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 9110], 10.00th=[11731], 20.00th=[14746], | 30.00th=[17695], 40.00th=[20317], 50.00th=[23200], 60.00th=[26346], | 70.00th=[30278], 80.00th=[34341], 90.00th=[41157], 95.00th=[45876], | 99.00th=[67634], 99.50th=[73925], 99.90th=[87557], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 6, max= 175, per=25.07%, avg=83.98, stdev=26.81, samples=139 iops : min= 1, max= 43, avg=20.47, stdev= 6.75, samples=139 write: IOPS=22, BW=90.4KiB/s (92.5kB/s)(6348KiB/70259msec); 0 zone resets clat (usec): min=953, max=622589, avg=20707.22, stdev=20496.23 lat (usec): min=954, max=622589, avg=20708.09, stdev=20496.27 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3720], 10.00th=[ 5211], 20.00th=[ 7177], | 30.00th=[ 11076], 40.00th=[ 14353], 50.00th=[ 17695], 60.00th=[ 21627], | 70.00th=[ 25560], 80.00th=[ 31327], 90.00th=[ 39060], 95.00th=[ 48497], | 99.00th=[ 62129], 99.50th=[ 67634], 99.90th=[ 73925], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 6, max= 183, per=25.49%, avg=89.48, stdev=31.52, samples=139 iops : min= 1, max= 45, avg=21.85, stdev= 7.89, samples=139 lat (usec) : 50=0.03%, 100=0.13%, 250=0.68%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=0.49%, 4=2.44%, 10=12.96%, 20=30.40%, 50=48.89% lat (msec) : 100=3.65%, 750=0.03% cpu : usr=0.07%, sys=27.72%, ctx=11152, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184347: Tue Jun 16 07:33:59 2026 read: IOPS=21, BW=84.9KiB/s (86.9kB/s)(6028KiB/71017msec) clat (usec): min=37, max=79614, avg=24475.68, stdev=11948.59 lat (usec): min=38, max=79614, avg=24476.47, stdev=11948.63 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 8848], 10.00th=[11076], 20.00th=[14746], | 30.00th=[17433], 40.00th=[19792], 50.00th=[22938], 60.00th=[26346], | 70.00th=[29492], 80.00th=[33424], 90.00th=[39584], 95.00th=[46400], | 99.00th=[62129], 99.50th=[67634], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 31, max= 176, per=25.42%, avg=85.15, stdev=27.55, samples=140 iops : min= 7, max= 44, avg=20.77, stdev= 6.93, samples=140 write: IOPS=22, BW=88.1KiB/s (90.3kB/s)(6260KiB/71017msec); 0 zone resets clat (usec): min=815, max=641844, avg=21685.46, stdev=21036.33 lat (usec): min=816, max=641845, avg=21686.60, stdev=21036.44 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 42], 95.00th=[ 48], | 99.00th=[ 63], 99.50th=[ 68], 99.90th=[ 84], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 31, max= 200, per=25.19%, avg=88.41, stdev=30.11, samples=140 iops : min= 7, max= 50, avg=21.59, stdev= 7.61, samples=140 lat (usec) : 50=0.10%, 100=0.16%, 250=0.75%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.39%, 4=2.38%, 10=12.14%, 20=31.09%, 50=49.28% lat (msec) : 100=3.29%, 750=0.03% cpu : usr=0.08%, sys=27.43%, ctx=11055, 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=184348: Tue Jun 16 07:33:59 2026 read: IOPS=21, BW=85.2KiB/s (87.2kB/s)(6052KiB/71031msec) clat (usec): min=68, max=88024, avg=24891.10, stdev=12308.51 lat (usec): min=69, max=88026, avg=24892.70, stdev=12307.50 clat percentiles (usec): | 1.00th=[ 180], 5.00th=[ 8979], 10.00th=[11207], 20.00th=[14746], | 30.00th=[17695], 40.00th=[20055], 50.00th=[22938], 60.00th=[26346], | 70.00th=[29754], 80.00th=[34341], 90.00th=[41681], 95.00th=[47449], | 99.00th=[62653], 99.50th=[66847], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 39, max= 191, per=25.47%, avg=85.32, stdev=27.57, samples=140 iops : min= 9, max= 47, avg=20.81, stdev= 6.93, samples=140 write: IOPS=21, BW=87.8KiB/s (89.9kB/s)(6236KiB/71031msec); 0 zone resets clat (usec): min=815, max=638209, avg=21276.77, stdev=20943.44 lat (usec): min=816, max=638210, avg=21278.57, stdev=20942.92 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 3458], 10.00th=[ 5211], 20.00th=[ 7832], | 30.00th=[ 11600], 40.00th=[ 15139], 50.00th=[ 18220], 60.00th=[ 21627], | 70.00th=[ 27132], 80.00th=[ 32375], 90.00th=[ 40109], 95.00th=[ 47449], | 99.00th=[ 61080], 99.50th=[ 65799], 99.90th=[105382], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 31, max= 199, per=25.01%, avg=87.77, stdev=29.28, samples=140 iops : min= 7, max= 49, avg=21.43, stdev= 7.37, samples=140 lat (usec) : 100=0.13%, 250=0.81%, 500=0.23%, 750=0.07%, 1000=0.29% lat (msec) : 2=0.42%, 4=2.77%, 10=11.85%, 20=31.25%, 50=48.54% lat (msec) : 100=3.58%, 250=0.03%, 750=0.03% cpu : usr=0.09%, sys=27.07%, ctx=11187, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=336KiB/s (344kB/s), 83.8KiB/s-85.2KiB/s (85.8kB/s-87.2kB/s), io=23.4MiB (24.6MB), run=70259-71511msec WRITE: bw=352KiB/s (360kB/s), 87.8KiB/s-90.4KiB/s (89.9kB/s-92.5kB/s), io=24.6MiB (25.7MB), run=70259-71511msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184350: Tue Jun 16 07:34:05 2026 read: IOPS=19, BW=77.7KiB/s (79.6kB/s)(5992KiB/77114msec) clat (msec): min=2, max=663, avg=23.05, stdev=23.26 lat (msec): min=2, max=663, avg=23.06, stdev=23.26 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 45], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 93], 99.90th=[ 128], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 23, max= 336, per=24.92%, avg=77.51, stdev=54.26, samples=152 iops : min= 5, max= 84, avg=18.93, stdev=13.66, samples=152 write: IOPS=20, BW=81.6KiB/s (83.6kB/s)(6296KiB/77114msec); 0 zone resets clat (msec): min=5, max=109, avg=26.98, stdev=17.76 lat (msec): min=5, max=109, avg=26.98, stdev=17.76 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 15], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 62], | 99.00th=[ 82], 99.50th=[ 89], 99.90th=[ 105], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 15, max= 368, per=25.04%, avg=81.39, stdev=58.03, samples=152 iops : min= 3, max= 92, avg=19.90, stdev=14.61, samples=152 lat (msec) : 4=0.26%, 10=22.66%, 20=25.39%, 50=42.58%, 100=8.98% lat (msec) : 250=0.10%, 750=0.03% cpu : usr=0.07%, sys=15.70%, ctx=7598, 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=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=184351: Tue Jun 16 07:34:05 2026 read: IOPS=19, BW=77.0KiB/s (78.9kB/s)(5940KiB/77123msec) clat (msec): min=2, max=631, avg=22.86, stdev=22.91 lat (msec): min=2, max=631, avg=22.86, stdev=22.91 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 45], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 92], 99.90th=[ 132], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 23, max= 351, per=24.73%, avg=76.92, stdev=55.86, samples=152 iops : min= 5, max= 87, avg=18.78, stdev=14.06, samples=152 write: IOPS=20, BW=82.3KiB/s (84.3kB/s)(6348KiB/77123msec); 0 zone resets clat (msec): min=4, max=146, avg=27.13, stdev=17.58 lat (msec): min=4, max=146, avg=27.13, stdev=17.58 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 51], 95.00th=[ 61], | 99.00th=[ 83], 99.50th=[ 92], 99.90th=[ 125], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 15, max= 368, per=25.22%, avg=81.97, stdev=54.52, samples=152 iops : min= 3, max= 92, avg=20.05, stdev=13.74, samples=152 lat (msec) : 4=0.55%, 10=20.80%, 20=26.33%, 50=43.68%, 100=8.40% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.06%, sys=15.68%, ctx=7671, 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=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=184352: Tue Jun 16 07:34:05 2026 read: IOPS=19, BW=78.2KiB/s (80.1kB/s)(6028KiB/77064msec) clat (msec): min=3, max=101, avg=22.50, stdev=16.50 lat (msec): min=3, max=101, avg=22.51, stdev=16.50 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 47], 95.00th=[ 57], | 99.00th=[ 77], 99.50th=[ 83], 99.90th=[ 102], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 16, max= 352, per=25.18%, avg=78.30, stdev=56.82, samples=152 iops : min= 4, max= 88, avg=19.12, stdev=14.29, samples=152 write: IOPS=20, BW=81.2KiB/s (83.2kB/s)(6260KiB/77064msec); 0 zone resets clat (msec): min=5, max=637, avg=27.50, stdev=23.40 lat (msec): min=5, max=637, avg=27.50, stdev=23.40 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 41], 90.00th=[ 51], 95.00th=[ 60], | 99.00th=[ 82], 99.50th=[ 101], 99.90th=[ 142], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 23, max= 304, per=24.96%, avg=81.13, stdev=53.14, samples=152 iops : min= 5, max= 76, avg=19.84, stdev=13.39, samples=152 lat (msec) : 4=0.16%, 10=21.71%, 20=26.66%, 50=42.29%, 100=8.89% lat (msec) : 250=0.26%, 750=0.03% cpu : usr=0.07%, sys=15.85%, ctx=7722, 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=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=184353: Tue Jun 16 07:34:05 2026 read: IOPS=19, BW=78.6KiB/s (80.5kB/s)(6052KiB/77030msec) clat (msec): min=3, max=111, avg=23.12, stdev=16.69 lat (msec): min=3, max=111, avg=23.12, stdev=16.69 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 8], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 35], 90.00th=[ 47], 95.00th=[ 57], | 99.00th=[ 77], 99.50th=[ 85], 99.90th=[ 110], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 16, max= 336, per=25.26%, avg=78.56, stdev=53.44, samples=152 iops : min= 4, max= 84, avg=19.19, stdev=13.47, samples=152 write: IOPS=20, BW=80.0KiB/s (82.9kB/s)(6236KiB/77030msec); 0 zone resets clat (msec): min=4, max=639, avg=26.90, stdev=22.96 lat (msec): min=4, max=639, avg=26.90, stdev=22.96 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 11], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 41], 90.00th=[ 50], 95.00th=[ 59], | 99.00th=[ 80], 99.50th=[ 87], 99.90th=[ 123], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 23, max= 335, per=24.90%, avg=80.93, stdev=56.86, samples=152 iops : min= 5, max= 83, avg=19.78, stdev=14.30, samples=152 lat (msec) : 4=0.20%, 10=21.32%, 20=26.20%, 50=43.55%, 100=8.50% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.07%, sys=15.85%, ctx=7755, 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=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=311KiB/s (319kB/s), 77.0KiB/s-78.6KiB/s (78.9kB/s-80.5kB/s), io=23.4MiB (24.6MB), run=77030-77123msec WRITE: bw=326KiB/s (334kB/s), 80.0KiB/s-82.3KiB/s (82.9kB/s-84.3kB/s), io=24.6MiB (25.7MB), run=77030-77123msec 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=184380: Tue Jun 16 07:34:35 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(5920KiB/23521msec) clat (usec): min=68, max=83788, avg=31269.17, stdev=14497.74 lat (usec): min=69, max=83788, avg=31269.93, stdev=14497.74 clat percentiles (usec): | 1.00th=[ 133], 5.00th=[ 7177], 10.00th=[16450], 20.00th=[21103], | 30.00th=[23987], 40.00th=[26870], 50.00th=[29754], 60.00th=[33817], | 70.00th=[38011], 80.00th=[41681], 90.00th=[49021], 95.00th=[55313], | 99.00th=[77071], 99.50th=[80217], 99.90th=[83362], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 95, max= 416, per=24.55%, avg=249.48, stdev=71.47, samples=46 iops : min= 5, max= 26, avg=14.96, stdev= 4.51, samples=46 write: IOPS=16, BW=271KiB/s (277kB/s)(6368KiB/23521msec); 0 zone resets clat (usec): min=1586, max=117801, avg=29898.52, stdev=17149.75 lat (usec): min=1588, max=117802, avg=29899.93, stdev=17149.67 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 44], 90.00th=[ 52], 95.00th=[ 62], | 99.00th=[ 74], 99.50th=[ 114], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 128, max= 383, per=25.31%, avg=270.52, stdev=65.78, samples=46 iops : min= 8, max= 23, avg=16.28, stdev= 4.12, samples=46 lat (usec) : 100=0.13%, 250=1.69%, 500=0.52% lat (msec) : 2=0.13%, 4=0.13%, 10=5.21%, 20=17.97%, 50=63.41% lat (msec) : 100=10.55%, 250=0.26% cpu : usr=0.03%, sys=28.64%, ctx=3510, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184381: Tue Jun 16 07:34:35 2026 read: IOPS=15, BW=247KiB/s (253kB/s)(5744KiB/23210msec) clat (usec): min=139, max=84620, avg=31207.96, stdev=14312.39 lat (usec): min=139, max=84621, avg=31208.73, stdev=14312.39 clat percentiles (usec): | 1.00th=[ 172], 5.00th=[ 392], 10.00th=[17171], 20.00th=[20579], | 30.00th=[23725], 40.00th=[26346], 50.00th=[29754], 60.00th=[33817], | 70.00th=[36439], 80.00th=[41681], 90.00th=[47449], 95.00th=[57410], | 99.00th=[74974], 99.50th=[78119], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 87, max= 352, per=24.41%, avg=247.98, stdev=64.11, samples=46 iops : min= 5, max= 22, avg=14.87, stdev= 4.07, samples=46 write: IOPS=17, BW=282KiB/s (289kB/s)(6544KiB/23210msec); 0 zone resets clat (usec): min=5870, max=88340, avg=29126.78, stdev=16200.49 lat (usec): min=5871, max=88341, avg=29129.01, stdev=16201.07 clat percentiles (usec): | 1.00th=[ 7242], 5.00th=[ 8979], 10.00th=[10421], 20.00th=[14615], | 30.00th=[19006], 40.00th=[22414], 50.00th=[26084], 60.00th=[30278], | 70.00th=[34341], 80.00th=[41157], 90.00th=[53216], 95.00th=[62129], | 99.00th=[78119], 99.50th=[84411], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 160, max= 478, per=26.33%, avg=281.50, stdev=68.03, samples=46 iops : min= 10, max= 29, avg=16.98, stdev= 4.29, samples=46 lat (usec) : 250=2.21%, 500=0.13% lat (msec) : 10=4.56%, 20=19.66%, 50=63.02%, 100=10.42% cpu : usr=0.04%, sys=29.02%, ctx=3495, 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=184382: Tue Jun 16 07:34:35 2026 read: IOPS=16, BW=266KiB/s (272kB/s)(6256KiB/23558msec) clat (usec): min=92, max=93646, avg=31910.44, stdev=14353.43 lat (usec): min=93, max=93647, avg=31911.26, stdev=14353.42 clat percentiles (usec): | 1.00th=[ 180], 5.00th=[13698], 10.00th=[16581], 20.00th=[21103], | 30.00th=[23987], 40.00th=[27395], 50.00th=[30016], 60.00th=[34341], | 70.00th=[38536], 80.00th=[42730], 90.00th=[49546], 95.00th=[56361], | 99.00th=[68682], 99.50th=[84411], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 127, max= 447, per=26.02%, avg=264.37, stdev=75.00, samples=46 iops : min= 7, max= 27, avg=15.89, stdev= 4.69, samples=46 write: IOPS=16, BW=256KiB/s (262kB/s)(6032KiB/23558msec); 0 zone resets clat (usec): min=1792, max=120650, avg=29127.91, stdev=17436.64 lat (usec): min=1793, max=120651, avg=29129.34, stdev=17436.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 35], 80.00th=[ 41], 90.00th=[ 54], 95.00th=[ 64], | 99.00th=[ 88], 99.50th=[ 95], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 127, max= 416, per=23.49%, avg=251.07, stdev=79.77, samples=46 iops : min= 7, max= 26, avg=15.07, stdev= 5.07, samples=46 lat (usec) : 100=0.13%, 250=1.56%, 500=0.26% lat (msec) : 2=0.13%, 4=0.13%, 10=5.60%, 20=17.58%, 50=63.54% lat (msec) : 100=10.94%, 250=0.13% cpu : usr=0.03%, sys=28.59%, ctx=3389, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184384: Tue Jun 16 07:34:35 2026 read: IOPS=16, BW=259KiB/s (265kB/s)(6032KiB/23268msec) clat (usec): min=96, max=90395, avg=32658.43, stdev=16287.51 lat (usec): min=96, max=90396, avg=32659.67, stdev=16287.38 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 235], 10.00th=[16581], 20.00th=[20579], | 30.00th=[23987], 40.00th=[27395], 50.00th=[31065], 60.00th=[34866], | 70.00th=[39584], 80.00th=[45351], 90.00th=[51643], 95.00th=[60556], | 99.00th=[80217], 99.50th=[89654], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 128, max= 416, per=25.40%, avg=258.07, stdev=58.26, samples=46 iops : min= 8, max= 26, avg=15.50, stdev= 3.60, samples=46 write: IOPS=16, BW=269KiB/s (275kB/s)(6256KiB/23268msec); 0 zone resets clat (usec): min=2629, max=82566, avg=27782.65, stdev=15751.34 lat (usec): min=2630, max=82569, avg=27783.95, stdev=15751.31 clat percentiles (usec): | 1.00th=[ 5669], 5.00th=[ 8455], 10.00th=[10028], 20.00th=[13698], | 30.00th=[17433], 40.00th=[21627], 50.00th=[25035], 60.00th=[28181], | 70.00th=[34341], 80.00th=[39060], 90.00th=[50594], 95.00th=[59507], | 99.00th=[77071], 99.50th=[80217], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 159, max= 416, per=25.31%, avg=270.61, stdev=64.38, samples=46 iops : min= 9, max= 26, avg=16.28, stdev= 4.17, samples=46 lat (usec) : 100=0.13%, 250=2.47%, 500=0.52% lat (msec) : 4=0.39%, 10=4.82%, 20=19.27%, 50=61.46%, 100=10.94% cpu : usr=0.05%, sys=28.96%, ctx=3504, 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=1017KiB/s (1041kB/s), 247KiB/s-266KiB/s (253kB/s-272kB/s), io=23.4MiB (24.5MB), run=23210-23558msec WRITE: bw=1070KiB/s (1095kB/s), 256KiB/s-282KiB/s (262kB/s-289kB/s), io=24.6MiB (25.8MB), run=23210-23558msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184383: Tue Jun 16 07:34:37 2026 read: IOPS=14, BW=236KiB/s (242kB/s)(5920KiB/25041msec) clat (msec): min=5, max=108, avg=29.67, stdev=19.48 lat (msec): min=5, max=108, avg=29.67, stdev=19.48 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 62], 95.00th=[ 69], | 99.00th=[ 87], 99.50th=[ 97], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 63, max= 704, per=23.84%, avg=226.22, stdev=119.72, samples=49 iops : min= 3, max= 44, avg=13.49, stdev= 7.50, samples=49 write: IOPS=15, BW=254KiB/s (260kB/s)(6368KiB/25041msec); 0 zone resets clat (msec): min=6, max=117, avg=35.18, stdev=20.73 lat (msec): min=6, max=117, avg=35.19, stdev=20.73 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 53], 90.00th=[ 66], 95.00th=[ 75], | 99.00th=[ 94], 99.50th=[ 116], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 95, max= 669, per=24.50%, avg=244.78, stdev=105.97, samples=49 iops : min= 5, max= 41, avg=14.65, stdev= 6.67, samples=49 lat (msec) : 10=7.94%, 20=24.87%, 50=47.14%, 100=19.53%, 250=0.52% cpu : usr=0.04%, sys=15.65%, ctx=2229, 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=184385: Tue Jun 16 07:34:37 2026 read: IOPS=14, BW=228KiB/s (233kB/s)(5744KiB/25219msec) clat (msec): min=2, max=100, avg=30.77, stdev=21.89 lat (msec): min=2, max=100, avg=30.77, stdev=21.89 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 6], 10.00th=[ 9], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 50], 90.00th=[ 65], 95.00th=[ 77], | 99.00th=[ 100], 99.50th=[ 101], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 31, max= 960, per=23.62%, avg=224.18, stdev=143.60, samples=50 iops : min= 1, max= 60, avg=13.36, stdev= 9.06, samples=50 write: IOPS=16, BW=259KiB/s (266kB/s)(6544KiB/25219msec); 0 zone resets clat (msec): min=4, max=128, avg=34.38, stdev=23.56 lat (msec): min=4, max=128, avg=34.38, stdev=23.56 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 55], 90.00th=[ 65], 95.00th=[ 80], | 99.00th=[ 118], 99.50th=[ 125], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 64, max= 1152, per=25.42%, avg=253.92, stdev=192.48, samples=50 iops : min= 4, max= 72, avg=15.22, stdev=12.14, samples=50 lat (msec) : 4=1.95%, 10=10.55%, 20=25.26%, 50=41.02%, 100=20.05% lat (msec) : 250=1.17% cpu : usr=0.06%, sys=14.72%, ctx=2111, 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=184386: Tue Jun 16 07:34:37 2026 read: IOPS=15, BW=250KiB/s (256kB/s)(6256KiB/24979msec) clat (msec): min=5, max=110, avg=28.04, stdev=18.38 lat (msec): min=5, max=110, avg=28.04, stdev=18.38 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 41], 90.00th=[ 55], 95.00th=[ 67], | 99.00th=[ 95], 99.50th=[ 106], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 95, max= 896, per=25.93%, avg=246.08, stdev=143.94, samples=49 iops : min= 5, max= 56, avg=14.73, stdev= 9.09, samples=49 write: IOPS=15, BW=241KiB/s (247kB/s)(6032KiB/24979msec); 0 zone resets clat (msec): min=7, max=136, avg=36.85, stdev=21.34 lat (msec): min=7, max=136, avg=36.85, stdev=21.34 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 54], 90.00th=[ 67], 95.00th=[ 78], | 99.00th=[ 104], 99.50th=[ 120], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 32, max= 573, per=23.19%, avg=231.63, stdev=87.89, samples=49 iops : min= 2, max= 35, avg=13.82, stdev= 5.48, samples=49 lat (msec) : 10=4.95%, 20=26.82%, 50=50.00%, 100=17.45%, 250=0.78% cpu : usr=0.09%, sys=16.10%, ctx=2235, 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=184387: Tue Jun 16 07:34:37 2026 read: IOPS=15, BW=241KiB/s (247kB/s)(6032KiB/24998msec) clat (msec): min=5, max=106, avg=29.42, stdev=19.48 lat (msec): min=5, max=106, avg=29.42, stdev=19.48 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 59], 95.00th=[ 69], | 99.00th=[ 94], 99.50th=[ 101], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] bw ( KiB/s): min= 31, max= 733, per=24.37%, avg=231.24, stdev=122.93, samples=49 iops : min= 1, max= 45, avg=13.80, stdev= 7.76, samples=49 write: IOPS=15, BW=250KiB/s (256kB/s)(6256KiB/24998msec); 0 zone resets clat (msec): min=6, max=129, avg=35.33, stdev=21.30 lat (msec): min=6, max=129, avg=35.33, stdev=21.30 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 52], 90.00th=[ 66], 95.00th=[ 74], | 99.00th=[ 110], 99.50th=[ 122], 99.90th=[ 130], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 96, max= 704, per=24.23%, avg=242.10, stdev=109.41, samples=49 iops : min= 6, max= 44, avg=14.49, stdev= 6.83, samples=49 lat (msec) : 10=7.94%, 20=25.65%, 50=47.66%, 100=17.84%, 250=0.91% cpu : usr=0.06%, sys=15.75%, ctx=2227, 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=950KiB/s (973kB/s), 228KiB/s-250KiB/s (233kB/s-256kB/s), io=23.4MiB (24.5MB), run=24979-25219msec WRITE: bw=999KiB/s (1023kB/s), 241KiB/s-259KiB/s (247kB/s-266kB/s), io=24.6MiB (25.8MB), run=24979-25219msec 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=184401: Tue Jun 16 07:34:48 2026 read: IOPS=1, BW=1696KiB/s (1736kB/s)(7168KiB/4227msec) clat (usec): min=533, max=1599.1k, avg=471663.90, stdev=601633.08 lat (usec): min=534, max=1599.1k, avg=471664.99, stdev=601633.24 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], | 20.00th=[ 67634], 30.00th=[ 189793], 40.00th=[ 189793], | 50.00th=[ 193987], 60.00th=[ 229639], 70.00th=[ 229639], | 80.00th=[1019216], 90.00th=[1602225], 95.00th=[1602225], | 99.00th=[1602225], 99.50th=[1602225], 99.90th=[1602225], | 99.95th=[1602225], 99.99th=[1602225] bw ( KiB/s): min= 1777, max= 4096, per=73.01%, avg=2965.75, stdev=1300.93, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1211KiB/s (1240kB/s)(5120KiB/4227msec); 0 zone resets clat (msec): min=96, max=333, avg=184.72, stdev=90.37 lat (msec): min=96, max=333, avg=184.77, stdev=90.39 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 96], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 176], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2048, max= 5333, per=55.27%, avg=3143.00, stdev=1896.60, samples=3 iops : min= 2, max= 5, avg= 3.00, stdev= 1.73, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=50.00%, 500=8.33%, 2000=16.67% cpu : usr=0.00%, sys=41.08%, ctx=1254, 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=184402: Tue Jun 16 07:34:48 2026 read: IOPS=0, BW=406KiB/s (416kB/s)(2048KiB/5041msec) clat (msec): min=127, max=325, avg=226.63, stdev=139.81 lat (msec): min=127, max=325, avg=226.63, stdev=139.81 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 128], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 1943, max= 2043, per=49.06%, avg=1993.00, stdev=70.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2031KiB/s (2080kB/s)(10.0MiB/5041msec); 0 zone resets clat (msec): min=67, max=1532, avg=458.54, stdev=480.83 lat (msec): min=67, max=1533, avg=458.61, stdev=480.83 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 157], | 30.00th=[ 159], 40.00th=[ 180], 50.00th=[ 211], 60.00th=[ 234], | 70.00th=[ 288], 80.00th=[ 785], 90.00th=[ 978], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 2048, max= 5333, per=59.42%, avg=3379.00, stdev=1618.90, samples=4 iops : min= 2, max= 5, avg= 3.00, stdev= 1.41, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.00%, sys=37.98%, ctx=528, 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=184403: Tue Jun 16 07:34:48 2026 read: IOPS=1, BW=1235KiB/s (1265kB/s)(6144KiB/4975msec) clat (usec): min=517, max=308234, avg=132288.66, stdev=139636.42 lat (usec): min=518, max=308235, avg=132289.47, stdev=139636.67 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 545], | 30.00th=[ 545], 40.00th=[ 70779], 50.00th=[ 70779], 60.00th=[114820], | 70.00th=[299893], 80.00th=[299893], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1858, max= 3555, per=58.49%, avg=2376.00, stdev=790.96, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1235KiB/s (1265kB/s)(6144KiB/4975msec); 0 zone resets clat (msec): min=247, max=1551, avg=696.50, stdev=612.78 lat (msec): min=248, max=1551, avg=696.56, stdev=612.79 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 372], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 1777, max= 3842, per=41.85%, avg=2380.00, stdev=981.00, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 2000=16.67% cpu : usr=0.02%, sys=29.67%, ctx=572, 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=184404: Tue Jun 16 07:34:48 2026 read: IOPS=1, BW=1181KiB/s (1210kB/s)(5120KiB/4334msec) clat (usec): min=465, max=790720, avg=207613.42, stdev=332705.68 lat (usec): min=466, max=790721, avg=207614.70, stdev=332705.85 clat percentiles (usec): | 1.00th=[ 465], 5.00th=[ 465], 10.00th=[ 465], 20.00th=[ 465], | 30.00th=[ 611], 40.00th=[ 611], 50.00th=[ 86508], 60.00th=[ 86508], | 70.00th=[160433], 80.00th=[160433], 90.00th=[792724], 95.00th=[792724], | 99.00th=[792724], 99.50th=[792724], 99.90th=[792724], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 3555, max= 4096, per=94.18%, avg=3825.50, stdev=382.54, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1654KiB/s (1694kB/s)(7168KiB/4334msec); 0 zone resets clat (msec): min=210, max=1562, avg=470.54, stdev=489.27 lat (msec): min=210, max=1562, avg=470.61, stdev=489.27 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 220], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 284], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 464], 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= 1809, max= 3555, per=39.80%, avg=2263.60, stdev=730.04, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 0.84, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.05%, sys=39.35%, ctx=690, 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=4063KiB/s (4160kB/s), 406KiB/s-1696KiB/s (416kB/s-1736kB/s), io=20.0MiB (20.0MB), run=4227-5041msec WRITE: bw=5688KiB/s (5824kB/s), 1211KiB/s-2031KiB/s (1240kB/s-2080kB/s), io=28.0MiB (29.4MB), run=4227-5041msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184395: Tue Jun 16 07:34:48 2026 read: IOPS=1, BW=1699KiB/s (1740kB/s)(7168KiB/4218msec) clat (msec): min=71, max=1114, avg=365.16, stdev=439.33 lat (msec): min=71, max=1114, avg=365.16, stdev=439.33 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 96], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 877], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1899, max= 5189, per=96.03%, avg=3728.00, stdev=1675.59, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 write: IOPS=1, BW=1214KiB/s (1243kB/s)(5120KiB/4218msec); 0 zone resets clat (msec): min=207, max=480, avg=329.76, stdev=132.76 lat (msec): min=207, max=480, avg=329.83, stdev=132.76 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 1899, max= 2048, per=37.01%, avg=2011.60, stdev=64.55, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 100=33.33%, 250=25.00%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.49%, ctx=133, 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=184396: Tue Jun 16 07:34:48 2026 read: IOPS=0, BW=388KiB/s (398kB/s)(2048KiB/5275msec) clat (msec): min=94, max=406, avg=250.44, stdev=220.30 lat (msec): min=94, max=406, avg=250.44, stdev=220.30 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 95], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1726, max= 1917, per=46.92%, avg=1821.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1941KiB/s (1988kB/s)(10.0MiB/5275msec); 0 zone resets clat (msec): min=106, max=1123, avg=473.63, stdev=366.20 lat (msec): min=106, max=1123, avg=473.71, stdev=366.21 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 110], | 30.00th=[ 159], 40.00th=[ 245], 50.00th=[ 266], 60.00th=[ 355], | 70.00th=[ 768], 80.00th=[ 802], 90.00th=[ 818], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1726, max= 4079, per=46.48%, avg=2526.14, stdev=986.90, samples=7 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=7 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 1000=25.00%, 2000=8.33% cpu : usr=0.00%, sys=17.67%, ctx=189, 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=184397: Tue Jun 16 07:34:48 2026 read: IOPS=1, BW=1227KiB/s (1257kB/s)(6144KiB/5007msec) clat (msec): min=49, max=169, avg=102.10, stdev=43.29 lat (msec): min=49, max=169, avg=102.10, stdev=43.29 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 69], | 30.00th=[ 69], 40.00th=[ 85], 50.00th=[ 85], 60.00th=[ 115], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 1917, max= 4096, per=84.25%, avg=3270.67, stdev=1181.68, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1227KiB/s (1257kB/s)(6144KiB/5007msec); 0 zone resets clat (msec): min=86, max=1781, avg=726.63, stdev=747.79 lat (msec): min=86, max=1781, avg=726.71, stdev=747.79 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 558], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1899, max= 3459, per=42.88%, avg=2330.75, stdev=755.09, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=8.33%, 750=8.33% lat (msec) : 2000=16.67% cpu : usr=0.00%, sys=11.71%, ctx=154, 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=184398: Tue Jun 16 07:34:48 2026 read: IOPS=0, BW=1005KiB/s (1029kB/s)(5120KiB/5097msec) clat (msec): min=50, max=1466, avg=464.88, stdev=597.41 lat (msec): min=50, max=1466, avg=464.88, stdev=597.41 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 51], | 30.00th=[ 86], 40.00th=[ 86], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 3799, max= 4031, per=100.00%, avg=3915.00, stdev=164.05, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1406KiB/s (1440kB/s)(7168KiB/5097msec); 0 zone resets clat (msec): min=103, max=942, avg=391.54, stdev=291.77 lat (msec): min=103, max=942, avg=391.61, stdev=291.77 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 153], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 259], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 527], 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= 1917, max= 3477, per=43.65%, avg=2372.50, stdev=738.92, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=16.67%, 750=25.00%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=15.33%, ctx=143, 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=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=3882KiB/s (3976kB/s), 388KiB/s-1699KiB/s (398kB/s-1740kB/s), io=20.0MiB (20.0MB), run=4218-5275msec WRITE: bw=5435KiB/s (5566kB/s), 1214KiB/s-1941KiB/s (1243kB/s-1988kB/s), io=28.0MiB (29.4MB), run=4218-5275msec 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=184412: Tue Jun 16 07:34:57 2026 read: IOPS=1, BW=5558KiB/s (5691kB/s)(12.0MiB/2211msec) clat (msec): min=429, max=822, avg=686.87, stdev=222.79 lat (msec): min=429, max=822, avg=686.87, stdev=222.79 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=19.10%, ctx=78, 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=184414: Tue Jun 16 07:34:57 2026 read: IOPS=0, BW=3349KiB/s (3430kB/s)(4096KiB/1223msec) clat (nsec): min=300673k, max=300673k, avg=300673209.00, stdev= 0.00 lat (nsec): min=300675k, max=300675k, avg=300675019.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 6803, max= 6803, per=91.81%, avg=6803.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=6698KiB/s (6859kB/s)(8192KiB/1223msec); 0 zone resets clat (msec): min=326, max=483, avg=404.63, stdev=111.09 lat (msec): min=326, max=483, avg=404.93, stdev=111.09 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 8192, max= 8192, per=61.20%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=38.46%, ctx=288, 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=184416: Tue Jun 16 07:34:57 2026 write: IOPS=1, BW=5020KiB/s (5140kB/s)(12.0MiB/2448msec); 0 zone resets clat (msec): min=200, max=1448, avg=778.46, stdev=628.65 lat (msec): min=201, max=1448, avg=778.76, stdev=628.64 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8192, max= 8192, per=61.20%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.08%, sys=16.31%, ctx=77, 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=184418: Tue Jun 16 07:34:57 2026 write: IOPS=1, BW=5766KiB/s (5905kB/s)(12.0MiB/2131msec); 0 zone resets clat (msec): min=282, max=1402, avg=673.42, stdev=631.56 lat (msec): min=282, max=1402, avg=673.72, stdev=631.54 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 6849, max= 8192, per=56.19%, avg=7520.50, stdev=949.64, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=17.04%, ctx=99, 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=7410KiB/s (7588kB/s), 3349KiB/s-5558KiB/s (3430kB/s-5691kB/s), io=16.0MiB (16.8MB), run=1223-2211msec WRITE: bw=13.1MiB/s (13.7MB/s), 5020KiB/s-6698KiB/s (5140kB/s-6859kB/s), io=32.0MiB (33.6MB), run=1223-2448msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184411: Tue Jun 16 07:34:58 2026 read: IOPS=1, BW=7224KiB/s (7397kB/s)(12.0MiB/1701msec) clat (msec): min=452, max=610, avg=525.80, stdev=79.50 lat (msec): min=452, max=610, avg=525.80, stdev=79.50 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=60.12%, ctx=2621, 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=184413: Tue Jun 16 07:34:58 2026 read: IOPS=0, BW=1895KiB/s (1940kB/s)(4096KiB/2162msec) clat (nsec): min=507881k, max=507881k, avg=507881082.00, stdev= 0.00 lat (nsec): min=507882k, max=507882k, avg=507882403.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] 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=3789KiB/s (3880kB/s)(8192KiB/2162msec); 0 zone resets clat (msec): min=546, max=888, avg=717.28, stdev=241.87 lat (msec): min=546, max=888, avg=717.55, stdev=241.95 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 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= 8192, max= 8192, per=65.35%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=20.64%, ctx=761, 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=184415: Tue Jun 16 07:34:58 2026 write: IOPS=1, BW=4701KiB/s (4814kB/s)(12.0MiB/2614msec); 0 zone resets clat (msec): min=90, max=2295, avg=832.82, stdev=1267.04 lat (msec): min=91, max=2296, avg=833.17, stdev=1267.00 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 112], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min=16351, max=16351, per=100.00%, avg=16351.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 250=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=12.51%, ctx=57, 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=184417: Tue Jun 16 07:34:58 2026 write: IOPS=1, BW=6279KiB/s (6430kB/s)(12.0MiB/1957msec); 0 zone resets clat (msec): min=143, max=1424, avg=588.42, stdev=724.73 lat (msec): min=144, max=1424, avg=588.73, stdev=724.57 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 197], | 70.00th=[ 1418], 80.00th=[ 1418], 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=12047, max=12047, per=96.11%, avg=12047.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=20.30%, ctx=115, 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=7578KiB/s (7760kB/s), 1895KiB/s-7224KiB/s (1940kB/s-7397kB/s), io=16.0MiB (16.8MB), run=1701-2162msec WRITE: bw=12.2MiB/s (12.8MB/s), 3789KiB/s-6279KiB/s (3880kB/s-6430kB/s), io=32.0MiB (33.6MB), run=1957-2614msec