== sanity test 398c: run fio to test AIO ================= 09:54:37 (1790776477) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.24516 s, 171 MB/s osc.lustre-OST0000-osc-ffff9a3f11aac000.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=145441: Wed Sep 30 09:57:16 2026 write: IOPS=17, BW=68.3KiB/s (69.9kB/s)(10.0MiB/149990msec); 0 zone resets slat (usec): min=22, max=43644, avg=208.76, stdev=1133.81 clat (msec): min=131, max=1948, avg=936.44, stdev=288.11 lat (msec): min=132, max=1948, avg=936.65, stdev=288.11 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 760], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1053], 80.00th=[ 1167], 90.00th=[ 1318], 95.00th=[ 1469], | 99.00th=[ 1737], 99.50th=[ 1821], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 149, per=25.71%, avg=69.94, stdev=31.79, samples=288 iops : min= 1, max= 37, avg=17.02, stdev= 7.99, samples=288 lat (msec) : 250=0.31%, 500=2.30%, 750=26.13%, 1000=36.68%, 2000=34.57% cpu : usr=0.04%, sys=0.20%, ctx=1728, majf=0, minf=9 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: Wed Sep 30 09:57:16 2026 write: IOPS=17, BW=68.2KiB/s (69.9kB/s)(10.0MiB/150071msec); 0 zone resets slat (usec): min=22, max=36931, avg=185.77, stdev=1223.87 clat (msec): min=279, max=2167, avg=936.65, stdev=290.34 lat (msec): min=279, max=2167, avg=936.84, stdev=290.38 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 567], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1754], 99.50th=[ 1888], 99.90th=[ 2005], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 149, per=25.20%, avg=68.53, stdev=31.17, samples=294 iops : min= 1, max= 37, avg=16.66, stdev= 7.86, samples=294 lat (msec) : 500=2.19%, 750=25.90%, 1000=38.87%, 2000=32.89%, >=2000=0.16% cpu : usr=0.05%, sys=0.22%, ctx=1778, 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: Wed Sep 30 09:57:16 2026 write: IOPS=17, BW=68.2KiB/s (69.9kB/s)(10.0MiB/150073msec); 0 zone resets slat (usec): min=23, max=34716, avg=194.61, stdev=1075.56 clat (msec): min=246, max=2105, avg=936.59, stdev=296.42 lat (msec): min=246, max=2106, avg=936.79, stdev=296.40 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 535], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1045], 80.00th=[ 1167], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1770], 99.50th=[ 1905], 99.90th=[ 2089], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 176, per=25.81%, avg=70.20, stdev=30.89, samples=287 iops : min= 1, max= 44, avg=17.08, stdev= 7.75, samples=287 lat (msec) : 250=0.08%, 500=2.23%, 750=25.43%, 1000=38.01%, 2000=33.95% lat (msec) : >=2000=0.31% cpu : usr=0.04%, sys=0.22%, ctx=1619, majf=0, minf=9 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=145444: Wed Sep 30 09:57:16 2026 write: IOPS=17, BW=68.4KiB/s (69.0kB/s)(10.0MiB/149810msec); 0 zone resets slat (usec): min=23, max=17742, avg=174.00, stdev=756.33 clat (msec): min=134, max=2186, avg=935.80, stdev=292.63 lat (msec): min=134, max=2186, avg=935.97, stdev=292.61 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1036], 80.00th=[ 1150], 90.00th=[ 1334], 95.00th=[ 1502], | 99.00th=[ 1754], 99.50th=[ 1838], 99.90th=[ 2056], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 222, per=25.00%, avg=68.00, stdev=31.52, samples=296 iops : min= 1, max= 55, avg=16.53, stdev= 7.93, samples=296 lat (msec) : 250=0.62%, 500=2.50%, 750=24.02%, 1000=38.36%, 2000=34.38% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.24%, ctx=1743, 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 Run status group 0 (all jobs): WRITE: bw=273KiB/s (279kB/s), 68.2KiB/s-68.4KiB/s (69.9kB/s-69.0kB/s), io=40.0MiB (41.9MB), run=149810-150073msec 7% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=145476: Wed Sep 30 09:59:13 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(5048KiB/108117msec) slat (usec): min=36, max=151847, avg=15104.34, stdev=10112.65 clat (msec): min=15, max=1524, avg=422.75, stdev=175.55 lat (msec): min=21, max=1540, avg=437.86, stdev=178.49 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 222], 10.00th=[ 255], 20.00th=[ 300], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 388], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 523], 90.00th=[ 642], 95.00th=[ 760], | 99.00th=[ 1083], 99.50th=[ 1116], 99.90th=[ 1435], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 143, per=25.47%, avg=46.87, stdev=24.06, samples=211 iops : min= 1, max= 35, avg=11.25, stdev= 6.06, samples=211 write: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5192KiB/108117msec); 0 zone resets slat (usec): min=28, max=27970, avg=209.58, stdev=964.65 clat (msec): min=207, max=2361, avg=905.86, stdev=372.73 lat (msec): min=207, max=2361, avg=906.07, stdev=372.75 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 468], 10.00th=[ 531], 20.00th=[ 617], | 30.00th=[ 676], 40.00th=[ 735], 50.00th=[ 810], 60.00th=[ 919], | 70.00th=[ 1020], 80.00th=[ 1167], 90.00th=[ 1401], 95.00th=[ 1754], | 99.00th=[ 2056], 99.50th=[ 2198], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 119, per=24.96%, avg=47.92, stdev=23.37, samples=212 iops : min= 1, max= 29, avg=11.50, stdev= 5.89, samples=212 lat (msec) : 20=0.08%, 50=0.23%, 100=0.55%, 250=3.75%, 500=37.07% lat (msec) : 750=26.99%, 1000=14.61%, 2000=16.02%, >=2000=0.70% cpu : usr=0.09%, sys=0.56%, ctx=4570, 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=145477: Wed Sep 30 09:59:13 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(4976KiB/108771msec) slat (usec): min=2288, max=98374, avg=14942.45, stdev=9455.60 clat (msec): min=34, max=1234, avg=419.02, stdev=154.87 lat (msec): min=48, max=1262, avg=433.97, stdev=158.12 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 241], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 384], 60.00th=[ 418], | 70.00th=[ 456], 80.00th=[ 518], 90.00th=[ 625], 95.00th=[ 726], | 99.00th=[ 978], 99.50th=[ 1036], 99.90th=[ 1116], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 127, per=25.17%, avg=46.30, stdev=25.02, samples=210 iops : min= 1, max= 31, avg=11.10, stdev= 6.32, samples=210 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(5264KiB/108771msec); 0 zone resets slat (usec): min=24, max=10508, avg=204.57, stdev=603.89 clat (msec): min=187, max=2361, avg=910.01, stdev=375.81 lat (msec): min=187, max=2361, avg=910.22, stdev=375.79 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 477], 10.00th=[ 518], 20.00th=[ 609], | 30.00th=[ 676], 40.00th=[ 743], 50.00th=[ 818], 60.00th=[ 911], | 70.00th=[ 1028], 80.00th=[ 1167], 90.00th=[ 1418], 95.00th=[ 1737], | 99.00th=[ 2056], 99.50th=[ 2265], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 119, per=24.93%, avg=47.86, stdev=23.79, samples=216 iops : min= 1, max= 29, avg=11.49, stdev= 6.03, samples=216 lat (msec) : 50=0.04%, 100=0.12%, 250=3.24%, 500=38.44%, 750=26.68% lat (msec) : 1000=14.92%, 2000=15.62%, >=2000=0.94% cpu : usr=0.09%, sys=0.52%, ctx=4200, majf=0, minf=14 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=145478: Wed Sep 30 09:59:13 2026 read: IOPS=11, BW=45.9KiB/s (46.0kB/s)(4984KiB/108685msec) slat (msec): min=2, max=330, avg=15.18, stdev=12.98 clat (msec): min=16, max=1532, avg=424.88, stdev=163.14 lat (msec): min=25, max=1551, avg=440.07, stdev=165.50 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 239], 10.00th=[ 268], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 422], | 70.00th=[ 464], 80.00th=[ 527], 90.00th=[ 625], 95.00th=[ 735], | 99.00th=[ 986], 99.50th=[ 1099], 99.90th=[ 1234], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 126, per=25.20%, avg=46.36, stdev=23.72, samples=211 iops : min= 1, max= 31, avg=11.12, stdev= 5.97, samples=211 write: IOPS=12, BW=48.4KiB/s (49.5kB/s)(5256KiB/108685msec); 0 zone resets slat (usec): min=23, max=18232, avg=222.67, stdev=749.61 clat (msec): min=105, max=2533, avg=903.37, stdev=375.73 lat (msec): min=105, max=2533, avg=903.59, stdev=375.73 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 456], 10.00th=[ 518], 20.00th=[ 600], | 30.00th=[ 676], 40.00th=[ 735], 50.00th=[ 810], 60.00th=[ 902], | 70.00th=[ 1011], 80.00th=[ 1167], 90.00th=[ 1418], 95.00th=[ 1720], | 99.00th=[ 2005], 99.50th=[ 2165], 99.90th=[ 2433], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 128, per=25.26%, avg=48.49, stdev=22.85, samples=212 iops : min= 1, max= 32, avg=11.65, stdev= 5.79, samples=212 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=3.40%, 500=38.40% lat (msec) : 750=26.05%, 1000=15.55%, 2000=15.70%, >=2000=0.59% cpu : usr=0.12%, sys=0.56%, ctx=4569, 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=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=145479: Wed Sep 30 09:59:13 2026 read: IOPS=11, BW=46.6KiB/s (47.8kB/s)(5060KiB/108504msec) slat (usec): min=2393, max=67683, avg=14596.52, stdev=8668.20 clat (msec): min=19, max=1547, avg=419.97, stdev=160.46 lat (msec): min=30, max=1574, avg=434.57, stdev=163.03 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 230], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 518], 90.00th=[ 634], 95.00th=[ 726], | 99.00th=[ 969], 99.50th=[ 1083], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7, max= 127, per=25.48%, avg=46.89, stdev=23.81, samples=212 iops : min= 1, max= 31, avg=11.25, stdev= 6.02, samples=212 write: IOPS=11, BW=47.7KiB/s (48.9kB/s)(5180KiB/108504msec); 0 zone resets slat (usec): min=30, max=14954, avg=194.91, stdev=657.01 clat (msec): min=330, max=2536, avg=912.85, stdev=370.00 lat (msec): min=330, max=2536, avg=913.05, stdev=370.05 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 472], 10.00th=[ 535], 20.00th=[ 609], | 30.00th=[ 684], 40.00th=[ 735], 50.00th=[ 818], 60.00th=[ 927], | 70.00th=[ 1028], 80.00th=[ 1167], 90.00th=[ 1418], 95.00th=[ 1687], | 99.00th=[ 2056], 99.50th=[ 2265], 99.90th=[ 2333], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 104, per=24.99%, avg=47.98, stdev=21.58, samples=211 iops : min= 1, max= 26, avg=11.53, stdev= 5.48, samples=211 lat (msec) : 20=0.04%, 50=0.08%, 100=0.08%, 250=3.44%, 500=38.71% lat (msec) : 750=26.41%, 1000=14.18%, 2000=16.33%, >=2000=0.74% cpu : usr=0.11%, sys=0.58%, ctx=4329, 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=184KiB/s (189kB/s), 45.7KiB/s-46.7KiB/s (46.8kB/s-47.8kB/s), io=19.6MiB (20.5MB), run=108117-108771msec WRITE: bw=192KiB/s (197kB/s), 47.7KiB/s-48.4KiB/s (48.9kB/s-49.6kB/s), io=20.4MiB (21.4MB), run=108117-108771msec 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=145501: Wed Sep 30 09:59:23 2026 read: IOPS=1, BW=73.8MiB/s (77.4MB/s)(40.0MiB/542msec) slat (nsec): min=29580k, max=29580k, avg=29579764.00, stdev= 0.00 clat (nsec): min=485520k, max=485520k, avg=485520142.00, stdev= 0.00 lat (nsec): min=515106k, max=515106k, avg=515105742.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 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] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.22%, 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=73.8MiB/s (77.4MB/s), 73.8MiB/s-73.8MiB/s (77.4MB/s-77.4MB/s), io=40.0MiB (41.9MB), run=542-542msec 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