== sanity test 398c: run fio to test AIO ================= 02:11:02 (1790662262) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.542485 s, 77.3 MB/s osc.lustre-OST0000-osc-ffff8e7ac6a84000.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=147026: Tue Sep 29 02:13:37 2026 write: IOPS=17, BW=71.2KiB/s (72.9kB/s)(10.0MiB/143819msec); 0 zone resets slat (usec): min=23, max=15738, avg=212.53, stdev=731.88 clat (msec): min=189, max=2074, avg=898.08, stdev=248.12 lat (msec): min=189, max=2075, avg=898.29, stdev=248.15 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1334], | 99.00th=[ 1670], 99.50th=[ 1871], 99.90th=[ 2022], 99.95th=[ 2039], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 256, per=25.03%, avg=71.08, stdev=32.91, samples=283 iops : min= 1, max= 64, avg=17.24, stdev= 8.25, samples=283 lat (msec) : 250=1.25%, 500=1.99%, 750=22.19%, 1000=45.59%, 2000=28.83% lat (msec) : >=2000=0.16% cpu : usr=0.06%, sys=0.28%, ctx=1672, 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=147027: Tue Sep 29 02:13:37 2026 write: IOPS=17, BW=71.1KiB/s (72.8kB/s)(10.0MiB/143986msec); 0 zone resets slat (usec): min=24, max=35675, avg=276.67, stdev=1180.08 clat (msec): min=137, max=2138, avg=898.62, stdev=241.17 lat (msec): min=137, max=2138, avg=898.90, stdev=241.18 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1620], 99.50th=[ 1804], 99.90th=[ 1955], 99.95th=[ 2039], | 99.99th=[ 2140] bw ( KiB/s): min= 15, max= 192, per=25.04%, avg=71.12, stdev=27.13, samples=283 iops : min= 3, max= 48, avg=17.24, stdev= 6.82, samples=283 lat (msec) : 250=0.82%, 500=2.66%, 750=22.27%, 1000=45.94%, 2000=28.24% lat (msec) : >=2000=0.08% cpu : usr=0.07%, sys=0.28%, ctx=1686, 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=147028: Tue Sep 29 02:13:37 2026 write: IOPS=17, BW=71.1KiB/s (72.8kB/s)(10.0MiB/143944msec); 0 zone resets slat (usec): min=22, max=19148, avg=264.62, stdev=974.72 clat (msec): min=201, max=2138, avg=898.25, stdev=236.87 lat (msec): min=201, max=2138, avg=898.51, stdev=236.89 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 726], | 30.00th=[ 776], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1062], 90.00th=[ 1183], 95.00th=[ 1318], | 99.00th=[ 1620], 99.50th=[ 1687], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 15, max= 240, per=24.95%, avg=70.87, stdev=29.09, samples=284 iops : min= 3, max= 60, avg=17.19, stdev= 7.32, samples=284 lat (msec) : 250=0.66%, 500=3.20%, 750=20.90%, 1000=46.29%, 2000=28.83% lat (msec) : >=2000=0.12% cpu : usr=0.07%, sys=0.28%, ctx=1741, 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=147029: Tue Sep 29 02:13:37 2026 write: IOPS=17, BW=71.1KiB/s (72.8kB/s)(10.0MiB/144044msec); 0 zone resets slat (usec): min=24, max=21042, avg=283.91, stdev=1145.26 clat (msec): min=179, max=2070, avg=898.82, stdev=241.64 lat (msec): min=179, max=2070, avg=899.11, stdev=241.66 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 827], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 1003], 80.00th=[ 1070], 90.00th=[ 1183], 95.00th=[ 1301], | 99.00th=[ 1703], 99.50th=[ 1854], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 256, per=25.17%, avg=71.48, stdev=29.83, samples=281 iops : min= 1, max= 64, avg=17.34, stdev= 7.52, samples=281 lat (msec) : 250=0.62%, 500=2.93%, 750=21.88%, 1000=44.69%, 2000=29.77% lat (msec) : >=2000=0.12% cpu : usr=0.06%, sys=0.32%, ctx=2086, 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=284KiB/s (291kB/s), 71.1KiB/s-71.2KiB/s (72.8kB/s-72.9kB/s), io=40.0MiB (41.9MB), run=143819-144044msec 4% 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=147060: Tue Sep 29 02:15:28 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5048KiB/100579msec) slat (usec): min=3197, max=73317, avg=15161.19, stdev=8175.74 clat (msec): min=11, max=852, avg=396.53, stdev=102.34 lat (msec): min=18, max=858, avg=411.70, stdev=103.54 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 531], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 709], 99.90th=[ 827], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 112, per=24.87%, avg=49.50, stdev=20.53, samples=200 iops : min= 1, max= 28, avg=11.85, stdev= 5.19, samples=200 write: IOPS=12, BW=51.6KiB/s (52.9kB/s)(5192KiB/100579msec); 0 zone resets slat (usec): min=30, max=32492, avg=357.12, stdev=1337.21 clat (msec): min=266, max=1633, avg=835.97, stdev=227.19 lat (msec): min=266, max=1634, avg=836.33, stdev=227.17 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 489], 10.00th=[ 550], 20.00th=[ 634], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 827], 60.00th=[ 877], | 70.00th=[ 944], 80.00th=[ 1020], 90.00th=[ 1133], 95.00th=[ 1234], | 99.00th=[ 1469], 99.50th=[ 1586], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 120, per=24.79%, avg=51.31, stdev=19.93, samples=198 iops : min= 1, max= 30, avg=12.31, stdev= 5.03, samples=198 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=2.62%, 500=41.72% lat (msec) : 750=23.16%, 1000=20.98%, 2000=11.17% cpu : usr=0.13%, sys=0.78%, ctx=4471, 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=147061: Tue Sep 29 02:15:28 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(4976KiB/100394msec) slat (usec): min=2916, max=62769, avg=14716.94, stdev=7906.13 clat (msec): min=20, max=840, avg=398.49, stdev=104.01 lat (msec): min=42, max=848, avg=413.22, stdev=105.22 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 251], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 347], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 481], 90.00th=[ 535], 95.00th=[ 584], | 99.00th=[ 667], 99.50th=[ 709], 99.90th=[ 760], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 119, per=24.59%, avg=48.94, stdev=21.50, samples=199 iops : min= 1, max= 29, avg=11.72, stdev= 5.39, samples=199 write: IOPS=13, BW=52.4KiB/s (53.7kB/s)(5264KiB/100394msec); 0 zone resets slat (usec): min=30, max=29158, avg=326.98, stdev=1139.19 clat (msec): min=172, max=1632, avg=827.37, stdev=233.79 lat (msec): min=177, max=1633, avg=827.70, stdev=233.78 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 460], 10.00th=[ 535], 20.00th=[ 634], | 30.00th=[ 701], 40.00th=[ 760], 50.00th=[ 810], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 1020], 90.00th=[ 1116], 95.00th=[ 1217], | 99.00th=[ 1452], 99.50th=[ 1536], 99.90th=[ 1620], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 7, max= 112, per=25.05%, avg=51.85, stdev=22.50, samples=199 iops : min= 1, max= 28, avg=12.45, stdev= 5.64, samples=199 lat (msec) : 50=0.04%, 100=0.27%, 250=2.30%, 500=41.68%, 750=23.98% lat (msec) : 1000=19.73%, 2000=11.99% cpu : usr=0.13%, sys=0.80%, ctx=4468, 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=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=147062: Tue Sep 29 02:15:28 2026 read: IOPS=12, BW=49.6KiB/s (50.7kB/s)(4984KiB/100574msec) slat (usec): min=2971, max=56171, avg=14843.09, stdev=8303.74 clat (msec): min=33, max=790, avg=387.47, stdev=100.21 lat (msec): min=39, max=803, avg=402.33, stdev=101.90 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 243], 10.00th=[ 271], 20.00th=[ 305], | 30.00th=[ 334], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 435], 80.00th=[ 464], 90.00th=[ 518], 95.00th=[ 558], | 99.00th=[ 667], 99.50th=[ 701], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 135, per=24.73%, avg=49.22, stdev=24.26, samples=199 iops : min= 1, max= 33, avg=11.79, stdev= 6.05, samples=199 write: IOPS=13, BW=52.3KiB/s (53.5kB/s)(5256KiB/100574msec); 0 zone resets slat (usec): min=28, max=18435, avg=326.70, stdev=1059.22 clat (msec): min=102, max=1695, avg=840.25, stdev=236.75 lat (msec): min=113, max=1695, avg=840.58, stdev=236.71 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 477], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 709], 40.00th=[ 768], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 953], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1250], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1636], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 112, per=24.79%, avg=51.31, stdev=22.02, samples=200 iops : min= 1, max= 28, avg=12.32, stdev= 5.56, samples=200 lat (msec) : 50=0.08%, 100=0.20%, 250=3.28%, 500=42.11%, 750=21.84% lat (msec) : 1000=19.88%, 2000=12.62% cpu : usr=0.13%, sys=0.73%, ctx=4290, 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=147063: Tue Sep 29 02:15:28 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5060KiB/99939msec) slat (usec): min=40, max=51420, avg=14513.83, stdev=8040.59 clat (msec): min=7, max=839, avg=394.62, stdev=103.24 lat (msec): min=13, max=851, avg=409.14, stdev=104.67 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 368], 50.00th=[ 388], 60.00th=[ 414], | 70.00th=[ 439], 80.00th=[ 472], 90.00th=[ 527], 95.00th=[ 584], | 99.00th=[ 659], 99.50th=[ 684], 99.90th=[ 751], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 120, per=25.29%, avg=50.32, stdev=21.96, samples=197 iops : min= 1, max= 30, avg=12.07, stdev= 5.51, samples=197 write: IOPS=12, BW=51.8KiB/s (53.1kB/s)(5180KiB/99939msec); 0 zone resets slat (usec): min=26, max=19987, avg=383.42, stdev=1323.96 clat (msec): min=86, max=1625, avg=834.01, stdev=229.20 lat (msec): min=87, max=1625, avg=834.40, stdev=229.23 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 481], 10.00th=[ 542], 20.00th=[ 642], | 30.00th=[ 718], 40.00th=[ 760], 50.00th=[ 818], 60.00th=[ 877], | 70.00th=[ 944], 80.00th=[ 1036], 90.00th=[ 1133], 95.00th=[ 1200], | 99.00th=[ 1469], 99.50th=[ 1552], 99.90th=[ 1603], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8, max= 120, per=24.75%, avg=51.23, stdev=20.23, samples=198 iops : min= 2, max= 30, avg=12.30, stdev= 5.12, samples=198 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.20%, 250=2.70% lat (msec) : 500=42.34%, 750=22.97%, 1000=19.41%, 2000=12.23% cpu : usr=0.13%, sys=0.83%, ctx=4557, majf=0, minf=16 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=200KiB/s (204kB/s), 49.6KiB/s-50.6KiB/s (50.7kB/s-51.8kB/s), io=19.6MiB (20.5MB), run=99939-100579msec WRITE: bw=208KiB/s (213kB/s), 51.6KiB/s-52.4KiB/s (52.9kB/s-53.7kB/s), io=20.4MiB (21.4MB), run=99939-100579msec 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=147081: Tue Sep 29 02:15:38 2026 read: IOPS=1, BW=73.5MiB/s (77.1MB/s)(40.0MiB/544msec) slat (nsec): min=69788k, max=69788k, avg=69787983.00, stdev= 0.00 clat (nsec): min=452478k, max=452478k, avg=452477595.00, stdev= 0.00 lat (nsec): min=522272k, max=522272k, avg=522272372.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.50%, ctx=9, 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=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=73.5MiB/s (77.1MB/s), 73.5MiB/s-73.5MiB/s (77.1MB/s-77.1MB/s), io=40.0MiB (41.9MB), run=544-544msec 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