== sanity test 398c: run fio to test AIO ================= 11:25:04 (1789140304) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.520169 s, 80.6 MB/s osc.lustre-OST0000-osc-ffff8b210f8ca000.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=144954: Fri Sep 11 11:28:00 2026 write: IOPS=15, BW=61.8KiB/s (63.3kB/s)(10.0MiB/165618msec); 0 zone resets slat (usec): min=22, max=17522, avg=175.01, stdev=759.03 clat (msec): min=150, max=2890, avg=1033.66, stdev=386.26 lat (msec): min=151, max=2890, avg=1033.84, stdev=386.27 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 969], 60.00th=[ 1045], | 70.00th=[ 1133], 80.00th=[ 1267], 90.00th=[ 1519], 95.00th=[ 1804], | 99.00th=[ 2467], 99.50th=[ 2635], 99.90th=[ 2869], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7, max= 256, per=25.72%, avg=63.52, stdev=33.46, samples=317 iops : min= 1, max= 64, avg=15.40, stdev= 8.41, samples=317 lat (msec) : 250=0.04%, 500=3.52%, 750=17.50%, 1000=33.71%, 2000=42.46% lat (msec) : >=2000=2.77% cpu : usr=0.04%, sys=0.18%, ctx=1610, majf=0, minf=8 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=144955: Fri Sep 11 11:28:00 2026 write: IOPS=15, BW=61.9KiB/s (63.3kB/s)(10.0MiB/165540msec); 0 zone resets slat (usec): min=27, max=24134, avg=206.54, stdev=913.30 clat (msec): min=303, max=2840, avg=1033.06, stdev=382.13 lat (msec): min=303, max=2847, avg=1033.27, stdev=382.14 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 885], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1133], 80.00th=[ 1284], 90.00th=[ 1519], 95.00th=[ 1770], | 99.00th=[ 2265], 99.50th=[ 2601], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 256, per=25.63%, avg=63.32, stdev=33.71, samples=318 iops : min= 1, max= 64, avg=15.35, stdev= 8.46, samples=318 lat (msec) : 500=3.55%, 750=17.30%, 1000=33.91%, 2000=42.30%, >=2000=2.93% cpu : usr=0.04%, sys=0.21%, ctx=2166, 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=144956: Fri Sep 11 11:28:00 2026 write: IOPS=15, BW=62.1KiB/s (63.5kB/s)(10.0MiB/165006msec); 0 zone resets slat (usec): min=22, max=26143, avg=203.50, stdev=976.41 clat (msec): min=101, max=2857, avg=1030.24, stdev=388.01 lat (msec): min=102, max=2857, avg=1030.44, stdev=388.01 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 558], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1133], 80.00th=[ 1301], 90.00th=[ 1552], 95.00th=[ 1754], | 99.00th=[ 2400], 99.50th=[ 2601], 99.90th=[ 2702], 99.95th=[ 2802], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 157, per=25.70%, avg=63.49, stdev=33.62, samples=317 iops : min= 1, max= 39, avg=15.39, stdev= 8.45, samples=317 lat (msec) : 250=0.12%, 500=3.28%, 750=18.71%, 1000=34.57%, 2000=40.59% lat (msec) : >=2000=2.73% cpu : usr=0.03%, sys=0.19%, ctx=1818, majf=0, minf=8 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=144957: Fri Sep 11 11:28:00 2026 write: IOPS=15, BW=62.1KiB/s (63.5kB/s)(10.0MiB/165006msec); 0 zone resets slat (usec): min=23, max=23854, avg=212.01, stdev=1015.54 clat (msec): min=253, max=2728, avg=1030.67, stdev=391.70 lat (msec): min=253, max=2728, avg=1030.89, stdev=391.74 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 726], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1036], | 70.00th=[ 1150], 80.00th=[ 1284], 90.00th=[ 1536], 95.00th=[ 1821], | 99.00th=[ 2467], 99.50th=[ 2601], 99.90th=[ 2702], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 256, per=25.71%, avg=63.50, stdev=34.79, samples=317 iops : min= 1, max= 64, avg=15.39, stdev= 8.72, samples=317 lat (msec) : 500=3.87%, 750=18.55%, 1000=31.76%, 2000=43.40%, >=2000=2.42% cpu : usr=0.04%, sys=0.22%, ctx=1864, 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 Run status group 0 (all jobs): WRITE: bw=247KiB/s (253kB/s), 61.8KiB/s-62.1KiB/s (63.3kB/s-63.5kB/s), io=40.0MiB (41.9MB), run=165006-165618msec 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=144991: Fri Sep 11 11:29:58 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5048KiB/104900msec) slat (usec): min=31, max=69676, avg=13945.20, stdev=8492.30 clat (msec): min=32, max=1626, avg=412.60, stdev=157.41 lat (msec): min=47, max=1639, avg=426.55, stdev=159.14 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 309], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 380], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 498], 90.00th=[ 600], 95.00th=[ 684], | 99.00th=[ 869], 99.50th=[ 936], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7, max= 135, per=25.29%, avg=48.04, stdev=24.65, samples=206 iops : min= 1, max= 33, avg=11.48, stdev= 6.19, samples=206 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(5192KiB/104900msec); 0 zone resets slat (usec): min=26, max=30943, avg=255.45, stdev=1243.40 clat (msec): min=172, max=2270, avg=876.91, stdev=286.08 lat (msec): min=172, max=2270, avg=877.17, stdev=286.09 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 498], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 718], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1053], 90.00th=[ 1234], 95.00th=[ 1452], | 99.00th=[ 1787], 99.50th=[ 1888], 99.90th=[ 2140], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 119, per=25.16%, avg=49.81, stdev=22.30, samples=204 iops : min= 1, max= 29, avg=11.92, stdev= 5.60, samples=204 lat (msec) : 50=0.27%, 100=0.39%, 250=2.46%, 500=39.34%, 750=22.62% lat (msec) : 1000=21.33%, 2000=13.52%, >=2000=0.08% cpu : usr=0.11%, sys=0.62%, ctx=4556, 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=144992: Fri Sep 11 11:29:58 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(4976KiB/105467msec) slat (usec): min=2756, max=53457, avg=14198.36, stdev=8386.97 clat (msec): min=26, max=928, avg=414.04, stdev=131.14 lat (msec): min=38, max=944, avg=428.24, stdev=133.09 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 262], 10.00th=[ 284], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 384], 60.00th=[ 414], | 70.00th=[ 447], 80.00th=[ 506], 90.00th=[ 609], 95.00th=[ 676], | 99.00th=[ 810], 99.50th=[ 877], 99.90th=[ 919], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 111, per=24.78%, avg=47.08, stdev=23.18, samples=206 iops : min= 1, max= 27, avg=11.24, stdev= 5.80, samples=206 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5264KiB/105467msec); 0 zone resets slat (usec): min=30, max=18580, avg=248.96, stdev=878.62 clat (msec): min=246, max=1997, avg=874.33, stdev=277.79 lat (msec): min=246, max=1997, avg=874.58, stdev=277.79 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 502], 10.00th=[ 558], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 785], 50.00th=[ 852], 60.00th=[ 902], | 70.00th=[ 978], 80.00th=[ 1062], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1770], 99.50th=[ 1871], 99.90th=[ 1972], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 119, per=25.16%, avg=49.82, stdev=21.85, samples=207 iops : min= 1, max= 29, avg=11.93, stdev= 5.53, samples=207 lat (msec) : 50=0.12%, 100=0.08%, 250=1.41%, 500=39.38%, 750=24.45% lat (msec) : 1000=20.90%, 2000=13.67% cpu : usr=0.12%, sys=0.57%, ctx=4747, 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=144993: Fri Sep 11 11:29:58 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(4984KiB/105465msec) slat (usec): min=2942, max=84178, avg=14221.32, stdev=8507.72 clat (msec): min=20, max=935, avg=417.53, stdev=134.63 lat (msec): min=35, max=954, avg=431.76, stdev=135.88 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 255], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 363], 50.00th=[ 388], 60.00th=[ 418], | 70.00th=[ 464], 80.00th=[ 514], 90.00th=[ 609], 95.00th=[ 701], | 99.00th=[ 802], 99.50th=[ 852], 99.90th=[ 877], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 127, per=24.87%, avg=47.25, stdev=22.39, samples=206 iops : min= 1, max= 31, avg=11.29, stdev= 5.63, samples=206 write: IOPS=12, BW=49.8KiB/s (51.0kB/s)(5256KiB/105465msec); 0 zone resets slat (usec): min=23, max=28020, avg=338.29, stdev=1674.98 clat (msec): min=206, max=2032, avg=871.49, stdev=276.40 lat (msec): min=207, max=2032, avg=871.83, stdev=276.38 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 485], 10.00th=[ 558], 20.00th=[ 634], | 30.00th=[ 718], 40.00th=[ 785], 50.00th=[ 844], 60.00th=[ 911], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1217], 95.00th=[ 1385], | 99.00th=[ 1754], 99.50th=[ 1787], 99.90th=[ 1989], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 135, per=24.84%, avg=49.19, stdev=21.57, samples=208 iops : min= 1, max= 33, avg=11.77, stdev= 5.42, samples=208 lat (msec) : 50=0.16%, 100=0.16%, 250=1.99%, 500=38.52%, 750=24.49% lat (msec) : 1000=21.52%, 2000=13.12%, >=2000=0.04% cpu : usr=0.11%, sys=0.59%, ctx=4739, 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=144994: Fri Sep 11 11:29:58 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(5060KiB/104981msec) slat (usec): min=2612, max=55461, avg=14390.03, stdev=8317.87 clat (msec): min=31, max=908, avg=411.90, stdev=136.04 lat (msec): min=47, max=949, avg=426.29, stdev=138.02 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 253], 10.00th=[ 279], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 409], | 70.00th=[ 443], 80.00th=[ 506], 90.00th=[ 609], 95.00th=[ 701], | 99.00th=[ 844], 99.50th=[ 869], 99.90th=[ 902], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 120, per=25.77%, avg=48.96, stdev=23.21, samples=203 iops : min= 1, max= 30, avg=11.71, stdev= 5.84, samples=203 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5180KiB/104981msec); 0 zone resets slat (usec): min=24, max=22471, avg=243.92, stdev=939.26 clat (msec): min=245, max=2015, avg=877.66, stdev=277.79 lat (msec): min=245, max=2015, avg=877.90, stdev=277.77 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 514], 10.00th=[ 567], 20.00th=[ 651], | 30.00th=[ 718], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 902], | 70.00th=[ 969], 80.00th=[ 1045], 90.00th=[ 1234], 95.00th=[ 1452], | 99.00th=[ 1737], 99.50th=[ 1821], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 119, per=24.64%, avg=48.78, stdev=21.14, samples=207 iops : min= 1, max= 29, avg=11.66, stdev= 5.27, samples=207 lat (msec) : 50=0.08%, 100=0.27%, 250=1.95%, 500=39.02%, 750=23.95% lat (msec) : 1000=21.84%, 2000=12.81%, >=2000=0.08% cpu : usr=0.12%, sys=0.64%, ctx=4539, 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=190KiB/s (195kB/s), 47.2KiB/s-48.2KiB/s (48.3kB/s-49.4kB/s), io=19.6MiB (20.5MB), run=104900-105467msec WRITE: bw=198KiB/s (203kB/s), 49.3KiB/s-49.9KiB/s (50.5kB/s-51.1kB/s), io=20.4MiB (21.4MB), run=104900-105467msec 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=145014: Fri Sep 11 11:30:10 2026 read: IOPS=1, BW=75.0MiB/s (78.7MB/s)(40.0MiB/533msec) slat (nsec): min=50857k, max=50857k, avg=50856734.00, stdev= 0.00 clat (nsec): min=459572k, max=459572k, avg=459572452.00, stdev= 0.00 lat (nsec): min=510434k, max=510434k, avg=510434362.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] lat (msec) : 500=100.00% cpu : usr=0.19%, sys=2.25%, ctx=6, 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=75.0MiB/s (78.7MB/s), 75.0MiB/s-75.0MiB/s (78.7MB/s-78.7MB/s), io=40.0MiB (41.9MB), run=533-533msec 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