== sanity test 124b: lru resize (performance test) ================================================================================= 18:43:27 (1777589007)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1059 (time 1777589020.51 total 10.01 last 105.78)
 - open/close 2052 (time 1777589030.52 total 20.02 last 99.20)
 - open/close 3035 (time 1777589040.52 total 30.02 last 98.29)
 - open/close 4115 (time 1777589050.53 total 40.02 last 107.97)
 - open/close 5176 (time 1777589060.53 total 50.03 last 106.04)
 - open/close 6232 (time 1777589070.54 total 60.04 last 105.54)
 - open/close 7275 (time 1777589080.54 total 70.04 last 104.24)
total: 8000 open/close in 76.02 seconds: 105.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 400
 - unlinked 0 (time 1777589199 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second
 - open/close 1152 (time 1777589280.48 total 10.00 last 115.20)
 - open/close 2237 (time 1777589290.48 total 20.00 last 108.47)
 - open/close 3352 (time 1777589300.49 total 30.01 last 111.44)
 - open/close 4475 (time 1777589310.50 total 40.02 last 112.23)
 - open/close 5468 (time 1777589320.50 total 50.02 last 99.23)
 - open/close 6490 (time 1777589330.50 total 60.02 last 102.19)
 - open/close 7592 (time 1777589340.50 total 70.02 last 110.19)
total: 8000 open/close in 74.28 seconds: 107.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 47 seconds
lru_size = 8005
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1777589404 ; total 0 ; last 0)
total: 8000 unlinks in 39 seconds: 205.128204 unlinks/second