== sanity test 124b: lru resize (performance test) ================================================================================= 23:54:33 (1788926073)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 687 (time 1788926088.04 total 10.01 last 68.61)
 - open/close 1241 (time 1788926098.05 total 20.02 last 55.34)
 - open/close 1790 (time 1788926108.05 total 30.03 last 54.88)
 - open/close 2370 (time 1788926118.07 total 40.04 last 57.90)
 - open/close 3033 (time 1788926128.07 total 50.05 last 66.25)
 - open/close 3774 (time 1788926138.08 total 60.05 last 74.09)
 - open/close 4511 (time 1788926148.08 total 70.06 last 73.63)
 - open/close 5171 (time 1788926158.11 total 80.09 last 65.85)
 - open/close 5844 (time 1788926168.11 total 90.09 last 67.29)
 - open/close 6561 (time 1788926178.12 total 100.10 last 71.61)
 - open/close 7267 (time 1788926188.13 total 110.10 last 70.56)
 - open/close 7980 (time 1788926198.14 total 120.12 last 71.20)
total: 8000 open/close in 120.37 seconds: 66.46 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 212 seconds
lru_size = 400
 - unlinked 0 (time 1788926421 ; total 0 ; last 0)
total: 8000 unlinks in 116 seconds: 68.965515 unlinks/second
 - open/close 732 (time 1788926552.07 total 10.00 last 73.18)
 - open/close 1483 (time 1788926562.08 total 20.01 last 75.03)
 - open/close 2208 (time 1788926572.08 total 30.01 last 72.49)
 - open/close 2965 (time 1788926582.09 total 40.02 last 75.66)
 - open/close 3701 (time 1788926592.11 total 50.04 last 73.43)
 - open/close 4438 (time 1788926602.12 total 60.05 last 73.65)
 - open/close 5153 (time 1788926612.13 total 70.07 last 71.40)
 - open/close 5752 (time 1788926622.15 total 80.08 last 59.78)
 - open/close 6216 (time 1788926632.16 total 90.10 last 46.35)
 - open/close 6806 (time 1788926642.18 total 100.11 last 58.90)
 - open/close 7313 (time 1788926652.18 total 110.12 last 50.68)
 - open/close 7907 (time 1788926662.20 total 120.13 last 59.33)
total: 8000 open/close in 121.44 seconds: 65.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 8005
ls -la is 54% faster with lru resize enabled
 - unlinked 0 (time 1788926785 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second