== sanity test 124b: lru resize (performance test) ================================================================================= 00:43:32 (1770443012)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 4709 (time 1770443025.00 total 10.00 last 470.82)
 - open/close 7681 (time 1770443035.00 total 20.00 last 297.15)
total: 8000 open/close in 20.73 seconds: 385.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 66 seconds
lru_size = 400
 - unlinked 0 (time 1770443104 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
 - open/close 4563 (time 1770443127.21 total 10.00 last 456.29)
total: 8000 open/close in 17.18 seconds: 465.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 8005
ls -la is 24% faster with lru resize enabled
 - unlinked 0 (time 1770443192 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second