== sanity test 124b: lru resize (performance test) ================================================================================= 13:27:31 (1777915651)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 3366 (time 1777915664.45 total 10.00 last 336.53)
 - open/close 7277 (time 1777915674.45 total 20.00 last 391.03)
total: 8000 open/close in 21.63 seconds: 369.89 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 67 seconds
lru_size = 400
400
 - unlinked 0 (time 1777915746 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4801 (time 1777915768.61 total 10.00 last 480.03)
total: 8000 open/close in 16.43 seconds: 486.99 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 52 seconds
lru_size = 4052
3955
ls -la is 22% faster with lru resize enabled
 - unlinked 0 (time 1777915835 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second