== sanity test 124b: lru resize (performance test) ================================================================================= 19:21:44 (1777504904)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 4247 (time 1777504918.12 total 10.00 last 424.64)
 - open/close 7480 (time 1777504928.12 total 20.01 last 323.10)
total: 8000 open/close in 21.61 seconds: 370.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 60 seconds
lru_size = 400
400
 - unlinked 0 (time 1777504993 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4760 (time 1777505015.02 total 10.00 last 475.93)
total: 8000 open/close in 16.04 seconds: 498.69 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 40 seconds
lru_size = 4006
4001
ls -la is 33% faster with lru resize enabled
 - unlinked 0 (time 1777505068 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second