== sanity test 124b: lru resize (performance test) ================================================================================= 10:47:41 (1788878861)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 3448 (time 1788878875.38 total 10.00 last 344.79)
 - open/close 7313 (time 1788878885.38 total 20.00 last 386.37)
total: 8000 open/close in 21.72 seconds: 368.34 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 1788878961 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2954 (time 1788878988.71 total 10.00 last 295.36)
 - open/close 6694 (time 1788878998.71 total 20.00 last 373.93)
total: 8000 open/close in 22.75 seconds: 351.68 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 44 seconds
lru_size = 4052
3955
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1788879052 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second