== sanity test 124b: lru resize (performance test) ================================================================================= 00:15:20 (1784088920)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 3361 (time 1784088934.22 total 10.00 last 336.03)
 - open/close 7489 (time 1784088944.22 total 20.00 last 412.71)
total: 8000 open/close in 21.72 seconds: 368.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 70 seconds
lru_size = 400
 - unlinked 0 (time 1784089018 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second
 - open/close 4643 (time 1784089045.17 total 10.00 last 464.27)
total: 8000 open/close in 16.35 seconds: 489.33 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 45 seconds
lru_size = 8005
ls -la is 35% faster with lru resize enabled
 - unlinked 0 (time 1784089103 ; total 0 ; last 0)
total: 8000 unlinks in 14 seconds: 571.428589 unlinks/second