== sanity test 124b: lru resize (performance test) ================================================================================= 00:13:05 (1786939985)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 4496 (time 1786939999.07 total 10.00 last 449.57)
total: 8000 open/close in 16.99 seconds: 470.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 66 seconds
lru_size = 400
400
 - unlinked 0 (time 1786940075 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4473 (time 1786940097.34 total 10.00 last 447.21)
total: 8000 open/close in 17.79 seconds: 449.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 4052
3955
ls -la is 30% faster with lru resize enabled
 - unlinked 0 (time 1786940158 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second