== sanity test 124b: lru resize (performance test) ================================================================================= 11:02:35 (1787324555)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 877 (time 1787324570.70 total 10.02 last 87.54)
 - open/close 1630 (time 1787324580.71 total 20.03 last 75.19)
 - open/close 2247 (time 1787324590.72 total 30.04 last 61.67)
 - open/close 3041 (time 1787324600.72 total 40.04 last 79.37)
 - open/close 3917 (time 1787324610.73 total 50.05 last 87.55)
 - open/close 4602 (time 1787324620.77 total 60.09 last 68.20)
 - open/close 5117 (time 1787324630.77 total 70.09 last 51.48)
 - open/close 6077 (time 1787324640.78 total 80.10 last 95.94)
 - open/close 7044 (time 1787324650.79 total 90.11 last 96.64)
 - open/close 7956 (time 1787324660.79 total 100.11 last 91.16)
total: 8000 open/close in 100.54 seconds: 79.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 400
400
 - unlinked 0 (time 1787324780 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 934 (time 1787324894.31 total 10.01 last 93.34)
 - open/close 1859 (time 1787324904.32 total 20.01 last 92.47)
 - open/close 2720 (time 1787324914.32 total 30.02 last 86.03)
 - open/close 3718 (time 1787324924.34 total 40.03 last 99.68)
 - open/close 4637 (time 1787324934.34 total 50.03 last 91.89)
 - open/close 5545 (time 1787324944.35 total 60.04 last 90.73)
 - open/close 6410 (time 1787324954.35 total 70.04 last 86.47)
 - open/close 7327 (time 1787324964.36 total 80.06 last 91.59)
total: 8000 open/close in 86.68 seconds: 92.29 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 105 seconds
lru_size = 4052
3955
ls -la is 2% faster with lru resize enabled
 - unlinked 0 (time 1787325096 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second