== sanity test 124b: lru resize (performance test) ================================================================================= 15:31:53 (1788895913)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 2891 (time 1788895925.42 total 10.00 last 289.08)
 - open/close 5562 (time 1788895935.43 total 20.00 last 266.99)
total: 8000 open/close in 29.74 seconds: 269.02 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 71 seconds
lru_size = 400
400
 - unlinked 0 (time 1788896019 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4242 (time 1788896042.17 total 10.00 last 424.08)
total: 8000 open/close in 18.85 seconds: 424.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 45 seconds
lru_size = 4006
4001
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1788896102 ; total 0 ; last 0)
total: 8000 unlinks in 17 seconds: 470.588226 unlinks/second