== sanity test 124b: lru resize (performance test) ================================================================================= 06:51:22 (1774435882)
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 3789 (time 1774435896.07 total 10.00 last 378.87)
 - open/close 7437 (time 1774435906.07 total 20.00 last 364.70)
total: 8000 open/close in 22.05 seconds: 362.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 63 seconds
lru_size = 400
400
 - unlinked 0 (time 1774435974 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4217 (time 1774435997.64 total 10.00 last 421.55)
total: 8000 open/close in 19.26 seconds: 415.32 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 43 seconds
lru_size = 4052
3955
ls -la is 31% faster with lru resize enabled
 - unlinked 0 (time 1774436058 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second