== sanity test 398c: run fio to test AIO ================= 22:58:41 (1789268321) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.569197 s, 73.7 MB/s osc.lustre-OST0000-osc-ffff9742c2b62800.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=151207: Sat Sep 12 23:01:24 2026 write: IOPS=16, BW=67.7KiB/s (69.4kB/s)(10.0MiB/151165msec); 0 zone resets slat (usec): min=21, max=19222, avg=296.60, stdev=1122.80 clat (msec): min=193, max=2015, avg=944.08, stdev=246.00 lat (msec): min=193, max=2015, avg=944.38, stdev=246.03 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 535], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1045], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1368], | 99.00th=[ 1586], 99.50th=[ 1687], 99.90th=[ 1938], 99.95th=[ 1972], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 256, per=25.21%, avg=68.07, stdev=31.61, samples=296 iops : min= 1, max= 64, avg=16.52, stdev= 7.94, samples=296 lat (msec) : 250=0.62%, 500=3.32%, 750=12.93%, 1000=44.26%, 2000=38.83% lat (msec) : >=2000=0.04% cpu : usr=0.05%, sys=0.28%, ctx=1683, 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=151208: Sat Sep 12 23:01:24 2026 write: IOPS=16, BW=67.7KiB/s (69.3kB/s)(10.0MiB/151337msec); 0 zone resets slat (usec): min=21, max=26927, avg=272.52, stdev=1088.20 clat (msec): min=260, max=2020, avg=944.46, stdev=247.68 lat (msec): min=260, max=2020, avg=944.74, stdev=247.67 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 542], 10.00th=[ 651], 20.00th=[ 768], | 30.00th=[ 835], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1603], 99.50th=[ 1653], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 256, per=25.56%, avg=69.00, stdev=35.67, samples=292 iops : min= 1, max= 64, avg=16.77, stdev= 8.96, samples=292 lat (msec) : 500=2.93%, 750=14.88%, 1000=43.67%, 2000=38.40%, >=2000=0.12% cpu : usr=0.06%, sys=0.26%, ctx=1664, 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=151209: Sat Sep 12 23:01:24 2026 write: IOPS=16, BW=67.7KiB/s (69.3kB/s)(10.0MiB/151270msec); 0 zone resets slat (usec): min=21, max=23364, avg=313.52, stdev=1186.90 clat (msec): min=57, max=1817, avg=944.20, stdev=241.57 lat (msec): min=60, max=1817, avg=944.52, stdev=241.59 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 550], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1720], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 216, per=24.79%, avg=66.92, stdev=29.33, samples=301 iops : min= 1, max= 54, avg=16.24, stdev= 7.38, samples=301 lat (msec) : 100=0.04%, 250=0.39%, 500=3.12%, 750=13.67%, 1000=43.83% lat (msec) : 2000=38.95% cpu : usr=0.05%, sys=0.30%, ctx=1963, 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=151210: Sat Sep 12 23:01:24 2026 write: IOPS=16, BW=67.7KiB/s (69.3kB/s)(10.0MiB/151336msec); 0 zone resets slat (usec): min=21, max=21974, avg=310.38, stdev=1100.24 clat (msec): min=261, max=1932, avg=944.43, stdev=244.24 lat (msec): min=261, max=1932, avg=944.74, stdev=244.24 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 550], 10.00th=[ 651], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1536], 99.50th=[ 1653], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 256, per=25.11%, avg=67.79, stdev=32.83, samples=296 iops : min= 1, max= 64, avg=16.46, stdev= 8.23, samples=296 lat (msec) : 500=3.52%, 750=14.57%, 1000=42.50%, 2000=39.41% cpu : usr=0.06%, sys=0.27%, ctx=1926, 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=271KiB/s (277kB/s), 67.7KiB/s-67.7KiB/s (69.3kB/s-69.4kB/s), io=40.0MiB (41.9MB), run=151165-151337msec 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=151254: Sat Sep 12 23:03:25 2026 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(5048KiB/112121msec) slat (usec): min=2511, max=58952, avg=15659.62, stdev=8623.34 clat (msec): min=32, max=1086, avg=439.63, stdev=117.82 lat (msec): min=42, max=1102, avg=455.29, stdev=119.86 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 271], 10.00th=[ 309], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 760], 99.50th=[ 827], 99.90th=[ 944], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 111, per=25.46%, avg=45.32, stdev=20.98, samples=218 iops : min= 1, max= 27, avg=10.81, stdev= 5.26, samples=218 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5192KiB/112121msec); 0 zone resets slat (usec): min=22, max=23119, avg=299.18, stdev=1078.15 clat (msec): min=390, max=1983, avg=934.92, stdev=254.25 lat (msec): min=390, max=1983, avg=935.23, stdev=254.28 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1670], 99.50th=[ 1838], 99.90th=[ 1938], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 112, per=25.05%, avg=46.60, stdev=20.62, samples=218 iops : min= 1, max= 28, avg=11.13, stdev= 5.21, samples=218 lat (msec) : 50=0.12%, 100=0.08%, 250=1.45%, 500=35.59%, 750=23.44% lat (msec) : 1000=21.64%, 2000=17.70% cpu : usr=0.12%, sys=0.64%, ctx=4045, 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=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=151255: Sat Sep 12 23:03:25 2026 read: IOPS=11, BW=44.4KiB/s (45.4kB/s)(4976KiB/112182msec) slat (usec): min=3090, max=69655, avg=15332.15, stdev=8890.76 clat (msec): min=13, max=984, avg=442.04, stdev=121.11 lat (msec): min=18, max=1000, avg=457.38, stdev=123.47 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 376], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 659], | 99.00th=[ 776], 99.50th=[ 827], 99.90th=[ 869], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 95, per=24.62%, avg=43.82, stdev=20.26, samples=222 iops : min= 1, max= 23, avg=10.44, stdev= 5.06, samples=222 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5264KiB/112182msec); 0 zone resets slat (usec): min=21, max=13834, avg=275.61, stdev=932.83 clat (msec): min=383, max=1906, avg=928.15, stdev=251.49 lat (msec): min=383, max=1907, avg=928.43, stdev=251.53 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1787], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 120, per=25.09%, avg=46.67, stdev=20.07, samples=221 iops : min= 1, max= 30, avg=11.15, stdev= 5.09, samples=221 lat (msec) : 20=0.12%, 50=0.08%, 100=0.20%, 250=0.86%, 500=35.16% lat (msec) : 750=23.63%, 1000=22.54%, 2000=17.42% cpu : usr=0.10%, sys=0.62%, ctx=4149, 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=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=151256: Sat Sep 12 23:03:25 2026 read: IOPS=11, BW=44.5KiB/s (45.5kB/s)(4984KiB/112063msec) slat (usec): min=53, max=67599, avg=15723.30, stdev=8976.51 clat (msec): min=23, max=1206, avg=444.32, stdev=125.63 lat (msec): min=38, max=1215, avg=460.05, stdev=126.98 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 271], 10.00th=[ 309], 20.00th=[ 351], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 818], 99.50th=[ 860], 99.90th=[ 1183], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 111, per=24.84%, avg=44.22, stdev=21.03, samples=221 iops : min= 1, max= 27, avg=10.54, stdev= 5.29, samples=221 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5256KiB/112063msec); 0 zone resets slat (usec): min=23, max=11190, avg=232.37, stdev=629.30 clat (msec): min=249, max=1984, avg=927.09, stdev=263.56 lat (msec): min=249, max=1984, avg=927.33, stdev=263.56 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 523], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1787], 99.50th=[ 1854], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 104, per=24.96%, avg=46.43, stdev=19.99, samples=221 iops : min= 1, max= 26, avg=11.09, stdev= 5.03, samples=221 lat (msec) : 50=0.23%, 100=0.12%, 250=1.09%, 500=35.74%, 750=23.48% lat (msec) : 1000=21.95%, 2000=17.38% cpu : usr=0.12%, sys=0.63%, ctx=3852, 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=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=151257: Sat Sep 12 23:03:25 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5060KiB/112180msec) slat (usec): min=3134, max=64579, avg=15606.45, stdev=9001.94 clat (msec): min=11, max=841, avg=444.84, stdev=113.10 lat (msec): min=20, max=859, avg=460.45, stdev=115.25 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 275], 10.00th=[ 317], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 651], | 99.00th=[ 776], 99.50th=[ 818], 99.90th=[ 835], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 119, per=25.73%, avg=45.79, stdev=21.34, samples=217 iops : min= 1, max= 29, avg=10.93, stdev= 5.35, samples=217 write: IOPS=11, BW=46.2KiB/s (47.3kB/s)(5180KiB/112180msec); 0 zone resets slat (usec): min=22, max=20855, avg=321.67, stdev=1206.20 clat (msec): min=367, max=1984, avg=932.92, stdev=260.84 lat (msec): min=367, max=1984, avg=933.24, stdev=260.88 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 535], 10.00th=[ 609], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 860], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1720], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 112, per=24.46%, avg=45.49, stdev=19.93, samples=222 iops : min= 1, max= 28, avg=10.86, stdev= 5.03, samples=222 lat (msec) : 20=0.04%, 100=0.08%, 250=1.02%, 500=36.13%, 750=23.32% lat (msec) : 1000=22.11%, 2000=17.30% cpu : usr=0.12%, sys=0.63%, ctx=4536, 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=179KiB/s (183kB/s), 44.4KiB/s-45.1KiB/s (45.4kB/s-46.2kB/s), io=19.6MiB (20.5MB), run=112063-112182msec WRITE: bw=186KiB/s (191kB/s), 46.2KiB/s-46.9KiB/s (47.3kB/s-48.0kB/s), io=20.4MiB (21.4MB), run=112063-112182msec 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=151278: Sat Sep 12 23:03:34 2026 read: IOPS=1, BW=63.9MiB/s (67.0MB/s)(40.0MiB/626msec) slat (nsec): min=60328k, max=60328k, avg=60327787.00, stdev= 0.00 clat (nsec): min=529141k, max=529141k, avg=529140982.00, stdev= 0.00 lat (nsec): min=589475k, max=589475k, avg=589474564.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.44%, ctx=42, 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=63.9MiB/s (67.0MB/s), 63.9MiB/s-63.9MiB/s (67.0MB/s-67.0MB/s), io=40.0MiB (41.9MB), run=626-626msec 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