== sanity test 124b: lru resize (performance test) ================================================================================= 07:29:48 (1783078188)
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 4009 (time 1783078200.33 total 10.00 last 400.78)
 - open/close 7618 (time 1783078210.33 total 20.00 last 360.83)
total: 8000 open/close in 20.84 seconds: 383.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 400
400
 - unlinked 0 (time 1783078293 ; total 0 ; last 0)
total: 8000 unlinks in 21 seconds: 380.952393 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4124 (time 1783078326.34 total 10.00 last 412.35)
total: 8000 open/close in 19.87 seconds: 402.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 66 seconds
lru_size = 4052
3955
ls -la is 16% faster with lru resize enabled
 - unlinked 0 (time 1783078410 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second