== sanity test 398c: run fio to test AIO ================= 05:57:46 (1789639066) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.327997 s, 128 MB/s osc.lustre-OST0000-osc-ffff9681d1b28000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=145440: Thu Sep 17 06:00:10 2026 write: IOPS=19, BW=76.1KiB/s (77.0kB/s)(10.0MiB/134478msec); 0 zone resets slat (usec): min=26, max=14434, avg=222.42, stdev=748.75 clat (msec): min=355, max=1465, avg=839.36, stdev=182.18 lat (msec): min=355, max=1465, avg=839.59, stdev=182.19 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 558], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1070], 95.00th=[ 1133], | 99.00th=[ 1267], 99.50th=[ 1334], 99.90th=[ 1418], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 152, per=24.91%, avg=75.72, stdev=26.27, samples=267 iops : min= 1, max= 38, avg=18.53, stdev= 6.59, samples=267 lat (msec) : 500=2.23%, 750=28.32%, 1000=50.00%, 2000=19.45% cpu : usr=0.05%, sys=0.26%, ctx=1783, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=145441: Thu Sep 17 06:00:10 2026 write: IOPS=19, BW=76.2KiB/s (78.0kB/s)(10.0MiB/134409msec); 0 zone resets slat (usec): min=26, max=10052, avg=202.09, stdev=585.15 clat (msec): min=312, max=1541, avg=838.92, stdev=181.38 lat (msec): min=312, max=1541, avg=839.13, stdev=181.39 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 986], 90.00th=[ 1070], 95.00th=[ 1133], | 99.00th=[ 1267], 99.50th=[ 1334], 99.90th=[ 1502], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 248, per=25.31%, avg=76.95, stdev=30.54, samples=262 iops : min= 1, max= 62, avg=18.84, stdev= 7.61, samples=262 lat (msec) : 500=2.58%, 750=28.79%, 1000=50.74%, 2000=17.89% cpu : usr=0.06%, sys=0.23%, ctx=1793, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=145442: Thu Sep 17 06:00:10 2026 write: IOPS=19, BW=76.2KiB/s (78.0kB/s)(10.0MiB/134372msec); 0 zone resets slat (usec): min=28, max=14239, avg=230.34, stdev=794.44 clat (msec): min=354, max=1499, avg=838.79, stdev=185.31 lat (msec): min=355, max=1499, avg=839.02, stdev=185.32 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1083], 95.00th=[ 1133], | 99.00th=[ 1267], 99.50th=[ 1318], 99.90th=[ 1452], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 15, max= 168, per=24.99%, avg=75.97, stdev=26.16, samples=266 iops : min= 3, max= 42, avg=18.60, stdev= 6.57, samples=266 lat (msec) : 500=3.67%, 750=27.07%, 1000=50.16%, 2000=19.10% cpu : usr=0.05%, sys=0.24%, ctx=1665, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=145443: Thu Sep 17 06:00:10 2026 write: IOPS=19, BW=76.3KiB/s (78.2kB/s)(10.0MiB/134143msec); 0 zone resets slat (usec): min=27, max=13593, avg=227.23, stdev=730.11 clat (msec): min=91, max=1401, avg=837.88, stdev=187.45 lat (msec): min=92, max=1401, avg=838.11, stdev=187.46 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 535], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 995], 90.00th=[ 1083], 95.00th=[ 1150], | 99.00th=[ 1267], 99.50th=[ 1351], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 200, per=25.28%, avg=76.84, stdev=27.66, samples=263 iops : min= 1, max= 50, avg=18.81, stdev= 6.95, samples=263 lat (msec) : 100=0.04%, 250=0.43%, 500=2.77%, 750=29.18%, 1000=48.83% lat (msec) : 2000=18.75% cpu : usr=0.06%, sys=0.28%, ctx=2118, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 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): WRITE: bw=305KiB/s (312kB/s), 76.1KiB/s-76.3KiB/s (77.0kB/s-78.2kB/s), io=40.0MiB (41.9MB), run=134143-134478msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145472: Thu Sep 17 06:01:51 2026 read: IOPS=13, BW=53.1KiB/s (54.3kB/s)(5048KiB/95138msec) slat (usec): min=2776, max=76520, avg=12267.52, stdev=7444.61 clat (msec): min=13, max=2027, avg=372.81, stdev=166.18 lat (msec): min=16, max=2065, avg=385.08, stdev=169.18 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 226], 10.00th=[ 249], 20.00th=[ 279], | 30.00th=[ 300], 40.00th=[ 321], 50.00th=[ 338], 60.00th=[ 355], | 70.00th=[ 380], 80.00th=[ 422], 90.00th=[ 506], 95.00th=[ 751], | 99.00th=[ 995], 99.50th=[ 1036], 99.90th=[ 1787], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 119, per=25.30%, avg=53.13, stdev=24.99, samples=187 iops : min= 1, max= 29, avg=12.80, stdev= 6.26, samples=187 write: IOPS=13, BW=54.6KiB/s (55.9kB/s)(5192KiB/95138msec); 0 zone resets slat (usec): min=31, max=26791, avg=272.18, stdev=919.41 clat (msec): min=276, max=3499, avg=795.49, stdev=367.88 lat (msec): min=276, max=3500, avg=795.76, stdev=367.91 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 456], 10.00th=[ 502], 20.00th=[ 567], | 30.00th=[ 609], 40.00th=[ 667], 50.00th=[ 726], 60.00th=[ 776], | 70.00th=[ 835], 80.00th=[ 911], 90.00th=[ 1099], 95.00th=[ 1586], | 99.00th=[ 2299], 99.50th=[ 2836], 99.90th=[ 3440], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 7, max= 136, per=25.35%, avg=55.51, stdev=24.72, samples=183 iops : min= 1, max= 34, avg=13.40, stdev= 6.24, samples=183 lat (msec) : 20=0.12%, 50=0.08%, 100=0.39%, 250=4.65%, 500=43.75% lat (msec) : 750=25.70%, 1000=17.89%, 2000=6.37%, >=2000=1.05% cpu : usr=0.09%, sys=0.64%, ctx=4862, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 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=145473: Thu Sep 17 06:01:51 2026 read: IOPS=13, BW=52.2KiB/s (53.5kB/s)(4976KiB/95271msec) slat (msec): min=2, max=274, avg=12.68, stdev=10.75 clat (msec): min=2, max=1693, avg=381.03, stdev=176.14 lat (msec): min=35, max=1704, avg=393.72, stdev=179.30 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 218], 10.00th=[ 245], 20.00th=[ 279], | 30.00th=[ 300], 40.00th=[ 321], 50.00th=[ 338], 60.00th=[ 359], | 70.00th=[ 384], 80.00th=[ 426], 90.00th=[ 542], 95.00th=[ 818], | 99.00th=[ 1028], 99.50th=[ 1062], 99.90th=[ 1670], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 127, per=24.59%, avg=51.63, stdev=25.40, samples=189 iops : min= 1, max= 31, avg=12.42, stdev= 6.37, samples=189 write: IOPS=13, BW=55.3KiB/s (56.6kB/s)(5264KiB/95271msec); 0 zone resets slat (usec): min=31, max=25783, avg=277.50, stdev=872.86 clat (msec): min=133, max=2562, avg=784.29, stdev=320.56 lat (msec): min=133, max=2562, avg=784.57, stdev=320.61 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 456], 10.00th=[ 502], 20.00th=[ 567], | 30.00th=[ 609], 40.00th=[ 659], 50.00th=[ 726], 60.00th=[ 776], | 70.00th=[ 835], 80.00th=[ 911], 90.00th=[ 1083], 95.00th=[ 1502], | 99.00th=[ 1989], 99.50th=[ 2265], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 127, per=25.21%, avg=55.21, stdev=25.19, samples=187 iops : min= 1, max= 31, avg=13.32, stdev= 6.34, samples=187 lat (msec) : 4=0.04%, 50=0.16%, 100=0.31%, 250=5.04%, 500=41.91% lat (msec) : 750=25.86%, 1000=18.52%, 2000=7.70%, >=2000=0.47% cpu : usr=0.10%, sys=0.63%, ctx=4266, majf=0, minf=17 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 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=145474: Thu Sep 17 06:01:51 2026 read: IOPS=13, BW=52.4KiB/s (53.6kB/s)(4984KiB/95136msec) slat (usec): min=38, max=85285, avg=12704.80, stdev=8125.22 clat (msec): min=12, max=1385, avg=376.80, stdev=156.67 lat (msec): min=18, max=1406, avg=389.51, stdev=160.60 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 226], 10.00th=[ 249], 20.00th=[ 284], | 30.00th=[ 305], 40.00th=[ 321], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 384], 80.00th=[ 426], 90.00th=[ 535], 95.00th=[ 776], | 99.00th=[ 961], 99.50th=[ 1011], 99.90th=[ 1116], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 119, per=24.71%, avg=51.90, stdev=25.42, samples=189 iops : min= 1, max= 29, avg=12.49, stdev= 6.38, samples=189 write: IOPS=13, BW=55.2KiB/s (56.6kB/s)(5256KiB/95136msec); 0 zone resets slat (usec): min=31, max=10598, avg=258.97, stdev=670.78 clat (msec): min=84, max=2370, avg=787.95, stdev=331.06 lat (msec): min=85, max=2370, avg=788.22, stdev=331.05 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 447], 10.00th=[ 502], 20.00th=[ 558], | 30.00th=[ 617], 40.00th=[ 667], 50.00th=[ 718], 60.00th=[ 776], | 70.00th=[ 827], 80.00th=[ 919], 90.00th=[ 1099], 95.00th=[ 1569], | 99.00th=[ 2123], 99.50th=[ 2265], 99.90th=[ 2299], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 128, per=24.92%, avg=54.59, stdev=25.52, samples=188 iops : min= 1, max= 32, avg=13.16, stdev= 6.47, samples=188 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=5.16%, 500=42.58% lat (msec) : 750=26.25%, 1000=17.93%, 2000=6.84%, >=2000=0.82% cpu : usr=0.11%, sys=0.64%, ctx=4734, majf=0, minf=15 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 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=145475: Thu Sep 17 06:01:51 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5060KiB/95271msec) slat (usec): min=3199, max=92270, avg=12835.60, stdev=8556.86 clat (msec): min=16, max=1220, avg=372.94, stdev=161.82 lat (msec): min=22, max=1263, avg=385.78, stdev=166.03 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 224], 10.00th=[ 249], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 334], 60.00th=[ 351], | 70.00th=[ 380], 80.00th=[ 422], 90.00th=[ 518], 95.00th=[ 743], | 99.00th=[ 1028], 99.50th=[ 1070], 99.90th=[ 1200], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 119, per=25.35%, avg=53.23, stdev=26.65, samples=187 iops : min= 1, max= 29, avg=12.82, stdev= 6.70, samples=187 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(5180KiB/95271msec); 0 zone resets slat (usec): min=31, max=54562, avg=317.35, stdev=1691.74 clat (msec): min=247, max=2686, avg=797.95, stdev=342.43 lat (msec): min=247, max=2686, avg=798.27, stdev=342.52 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 456], 10.00th=[ 502], 20.00th=[ 575], | 30.00th=[ 617], 40.00th=[ 667], 50.00th=[ 726], 60.00th=[ 776], | 70.00th=[ 844], 80.00th=[ 927], 90.00th=[ 1099], 95.00th=[ 1569], | 99.00th=[ 2123], 99.50th=[ 2265], 99.90th=[ 2668], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 112, per=24.48%, avg=53.62, stdev=23.52, samples=189 iops : min= 1, max= 28, avg=12.92, stdev= 5.93, samples=189 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=4.57%, 500=43.98% lat (msec) : 750=25.31%, 1000=17.70%, 2000=6.76%, >=2000=1.21% cpu : usr=0.10%, sys=0.62%, ctx=4627, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 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=211KiB/s (216kB/s), 52.2KiB/s-53.1KiB/s (53.5kB/s-54.4kB/s), io=19.6MiB (20.5MB), run=95136-95271msec WRITE: bw=219KiB/s (225kB/s), 54.4KiB/s-55.3KiB/s (55.7kB/s-56.6kB/s), io=20.4MiB (21.4MB), run=95136-95271msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=145504: Thu Sep 17 06:02:07 2026 read: IOPS=1, BW=56.1MiB/s (58.8MB/s)(40.0MiB/713msec) slat (nsec): min=45690k, max=45690k, avg=45689829.00, stdev= 0.00 clat (nsec): min=648602k, max=648602k, avg=648601897.00, stdev= 0.00 lat (nsec): min=694299k, max=694299k, avg=694298584.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.54%, ctx=5, 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=1,0,0,0 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=56.1MiB/s (58.8MB/s), 56.1MiB/s-56.1MiB/s (58.8MB/s-58.8MB/s), io=40.0MiB (41.9MB), run=713-713msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout