== sanity test 124b: lru resize (performance test) ================================================================================= 07:36:05 (1773228965)
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 3807 (time 1773228980.74 total 10.00 last 380.70)
 - open/close 7617 (time 1773228990.74 total 20.00 last 381.00)
total: 8000 open/close in 20.99 seconds: 381.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 72 seconds
lru_size = 400
400
 - unlinked 0 (time 1773229067 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3856 (time 1773229089.72 total 10.00 last 385.53)
total: 8000 open/close in 19.20 seconds: 416.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 55 seconds
lru_size = 4052
3955
ls -la is 23% faster with lru resize enabled
 - unlinked 0 (time 1773229162 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second