== sanity test 124b: lru resize (performance test) ================================================================================= 22:29:14 (1784946554)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 3889 (time 1784946567.26 total 10.00 last 388.83)
total: 8000 open/close in 19.63 seconds: 407.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 73 seconds
lru_size = 400
400
 - unlinked 0 (time 1784946653 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3959 (time 1784946676.34 total 10.00 last 395.83)
total: 8000 open/close in 19.53 seconds: 409.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 48 seconds
lru_size = 4052
3955
ls -la is 34% faster with lru resize enabled
 - unlinked 0 (time 1784946741 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second