== sanity test 124b: lru resize (performance test) ================================================================================= 23:12:10 (1781233930)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1282 (time 1781233943.09 total 10.00 last 128.14)
 - open/close 2520 (time 1781233953.09 total 20.01 last 123.77)
 - open/close 3900 (time 1781233963.10 total 30.01 last 137.90)
 - open/close 4947 (time 1781233973.11 total 40.03 last 104.56)
 - open/close 5733 (time 1781233983.12 total 50.03 last 78.56)
 - open/close 7160 (time 1781233993.13 total 60.04 last 142.57)
total: 8000 open/close in 66.32 seconds: 120.63 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 400
 - unlinked 0 (time 1781234096 ; total 0 ; last 0)
total: 8000 unlinks in 35 seconds: 228.571426 unlinks/second
 - open/close 1488 (time 1781234143.09 total 10.00 last 148.79)
 - open/close 2883 (time 1781234153.09 total 20.00 last 139.46)
 - open/close 4270 (time 1781234163.10 total 30.01 last 138.64)
 - open/close 5571 (time 1781234173.10 total 40.01 last 130.08)
 - open/close 6957 (time 1781234183.10 total 50.01 last 138.56)
total: 8000 open/close in 57.33 seconds: 139.55 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 48% faster with lru resize enabled
 - unlinked 0 (time 1781234247 ; total 0 ; last 0)
total: 8000 unlinks in 31 seconds: 258.064514 unlinks/second