== sanity test 398c: run fio to test AIO ================= 09:43:48 (1787751828) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.8658 s, 48.4 MB/s osc.lustre-OST0000-osc-ffff90a23b9a7000.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=181169: Wed Aug 26 09:44:31 2026 write: IOPS=78, BW=313KiB/s (321kB/s)(10.0MiB/32693msec); 0 zone resets slat (usec): min=30, max=15284, avg=197.54, stdev=666.20 clat (msec): min=26, max=406, avg=202.57, stdev=55.77 lat (msec): min=26, max=406, avg=202.77, stdev=55.77 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 380], 99.50th=[ 384], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 405] bw ( KiB/s): min= 96, max= 508, per=25.03%, avg=313.42, stdev=74.23, samples=64 iops : min= 24, max= 127, avg=77.94, stdev=18.58, samples=64 lat (msec) : 50=0.16%, 100=1.95%, 250=79.38%, 500=18.52% cpu : usr=0.18%, sys=0.86%, ctx=2863, 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=181170: Wed Aug 26 09:44:32 2026 write: IOPS=78, BW=314KiB/s (322kB/s)(10.0MiB/32569msec); 0 zone resets slat (usec): min=29, max=22602, avg=221.05, stdev=974.67 clat (msec): min=29, max=441, avg=203.10, stdev=55.96 lat (msec): min=29, max=441, avg=203.33, stdev=55.92 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 125], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 228], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 363], 99.50th=[ 422], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 124, max= 508, per=25.13%, avg=314.69, stdev=68.49, samples=64 iops : min= 31, max= 127, avg=78.27, stdev=17.14, samples=64 lat (msec) : 50=0.04%, 100=2.34%, 250=79.80%, 500=17.81% cpu : usr=0.12%, sys=0.68%, ctx=2739, 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=181171: Wed Aug 26 09:44:32 2026 write: IOPS=78, BW=314KiB/s (322kB/s)(10.0MiB/32607msec); 0 zone resets slat (usec): min=29, max=19289, avg=215.61, stdev=877.08 clat (msec): min=37, max=434, avg=202.11, stdev=56.07 lat (msec): min=37, max=434, avg=202.33, stdev=56.05 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 125], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 228], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 97, max= 508, per=25.00%, avg=312.97, stdev=71.15, samples=64 iops : min= 24, max= 127, avg=77.83, stdev=17.78, samples=64 lat (msec) : 50=0.08%, 100=2.34%, 250=77.77%, 500=19.80% cpu : usr=0.13%, sys=0.77%, ctx=2787, 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=181172: Wed Aug 26 09:44:32 2026 write: IOPS=78, BW=313KiB/s (321kB/s)(10.0MiB/32666msec); 0 zone resets slat (usec): min=24, max=21926, avg=209.13, stdev=852.96 clat (msec): min=49, max=408, avg=202.78, stdev=54.69 lat (msec): min=50, max=408, avg=202.99, stdev=54.70 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 123], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 228], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 97, max= 548, per=25.06%, avg=313.78, stdev=85.34, samples=64 iops : min= 24, max= 137, avg=78.02, stdev=21.40, samples=64 lat (msec) : 50=0.04%, 100=1.45%, 250=79.77%, 500=18.75% cpu : usr=0.14%, sys=0.74%, ctx=2491, 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=1253KiB/s (1283kB/s), 313KiB/s-314KiB/s (321kB/s-322kB/s), io=40.0MiB (41.9MB), run=32569-32693msec 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=181189: Wed Aug 26 09:45:11 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32191msec) slat (usec): min=2874, max=62526, avg=13647.01, stdev=8360.49 clat (msec): min=42, max=422, avg=189.49, stdev=50.12 lat (msec): min=55, max=433, avg=203.15, stdev=52.41 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 114], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 55, max= 287, per=25.23%, avg=156.92, stdev=40.66, samples=63 iops : min= 13, max= 71, avg=38.83, stdev=10.13, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5192KiB/32191msec); 0 zone resets slat (usec): min=32, max=16166, avg=220.69, stdev=891.38 clat (msec): min=29, max=383, avg=195.49, stdev=48.59 lat (msec): min=30, max=383, avg=195.71, stdev=48.63 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 288], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 240, per=25.00%, avg=161.73, stdev=40.39, samples=63 iops : min= 17, max= 60, avg=40.03, stdev=10.17, samples=63 lat (msec) : 50=0.08%, 100=1.21%, 250=87.27%, 500=11.45% cpu : usr=0.22%, sys=1.60%, ctx=4652, 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=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=181190: Wed Aug 26 09:45:11 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4976KiB/31761msec) slat (usec): min=35, max=62478, avg=13753.74, stdev=7877.22 clat (msec): min=43, max=422, avg=187.25, stdev=50.13 lat (msec): min=53, max=448, avg=201.01, stdev=52.23 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 114], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 80, max= 255, per=25.11%, avg=156.19, stdev=40.34, samples=62 iops : min= 20, max= 63, avg=38.68, stdev=10.11, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31761msec); 0 zone resets slat (usec): min=33, max=23365, avg=203.15, stdev=852.39 clat (msec): min=75, max=406, avg=195.20, stdev=48.30 lat (msec): min=75, max=406, avg=195.40, stdev=48.30 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 347], 99.50th=[ 388], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 64, max= 271, per=25.66%, avg=166.05, stdev=41.21, samples=62 iops : min= 16, max= 67, avg=41.13, stdev=10.29, samples=62 lat (msec) : 50=0.04%, 100=1.37%, 250=86.76%, 500=11.84% cpu : usr=0.23%, sys=1.51%, ctx=4621, 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=181191: Wed Aug 26 09:45:11 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32135msec) slat (usec): min=2702, max=63551, avg=13951.84, stdev=8209.11 clat (msec): min=30, max=411, avg=190.06, stdev=51.33 lat (msec): min=42, max=440, avg=204.02, stdev=53.90 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 114], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 72, max= 255, per=25.04%, avg=155.78, stdev=39.09, samples=63 iops : min= 18, max= 63, avg=38.59, stdev= 9.71, samples=63 write: IOPS=40, BW=164KiB/s (167kB/s)(5256KiB/32135msec); 0 zone resets slat (usec): min=30, max=13044, avg=233.49, stdev=916.13 clat (msec): min=84, max=393, avg=194.14, stdev=46.83 lat (msec): min=84, max=393, avg=194.37, stdev=46.85 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 256, per=25.28%, avg=163.54, stdev=42.22, samples=63 iops : min= 15, max= 64, avg=40.48, stdev=10.63, samples=63 lat (msec) : 50=0.08%, 100=1.25%, 250=87.19%, 500=11.48% cpu : usr=0.19%, sys=1.65%, ctx=4479, 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=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=181192: Wed Aug 26 09:45:11 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5060KiB/32262msec) slat (usec): min=104, max=61314, avg=14038.59, stdev=8174.68 clat (msec): min=32, max=424, avg=189.21, stdev=52.59 lat (msec): min=32, max=448, avg=203.25, stdev=55.24 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 368], 99.90th=[ 409], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 79, max= 287, per=25.04%, avg=155.76, stdev=42.14, samples=63 iops : min= 19, max= 71, avg=38.54, stdev=10.53, samples=63 write: IOPS=40, BW=161KiB/s (164kB/s)(5180KiB/32262msec); 0 zone resets slat (usec): min=30, max=11615, avg=210.91, stdev=773.19 clat (msec): min=32, max=412, avg=197.02, stdev=50.67 lat (msec): min=32, max=412, avg=197.23, stdev=50.64 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 71, max= 240, per=24.57%, avg=158.94, stdev=37.80, samples=63 iops : min= 17, max= 60, avg=39.35, stdev= 9.47, samples=63 lat (msec) : 50=0.31%, 100=1.76%, 250=84.69%, 500=13.24% cpu : usr=0.29%, sys=1.62%, ctx=4439, 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=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=622KiB/s (637kB/s), 155KiB/s-157KiB/s (159kB/s-161kB/s), io=19.6MiB (20.5MB), run=31761-32262msec WRITE: bw=648KiB/s (663kB/s), 161KiB/s-166KiB/s (164kB/s-170kB/s), io=20.4MiB (21.4MB), run=31761-32262msec 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=181201: Wed Aug 26 09:45:20 2026 read: IOPS=4, BW=165MiB/s (173MB/s)(40.0MiB/242msec) slat (nsec): min=15549k, max=15549k, avg=15548929.00, stdev= 0.00 clat (nsec): min=214955k, max=214955k, avg=214954665.00, stdev= 0.00 lat (nsec): min=230973k, max=230973k, avg=230972879.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.56%, ctx=10, 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=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=165MiB/s (173MB/s), 165MiB/s-165MiB/s (173MB/s-173MB/s), io=40.0MiB (41.9MB), run=242-242msec 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