== sanity test 124b: lru resize (performance test) ================================================================================= 19:31:33 (1780529493)
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 2584 (time 1780529505.36 total 10.00 last 258.36)
 - open/close 5866 (time 1780529515.36 total 20.00 last 328.14)
total: 8000 open/close in 25.80 seconds: 310.04 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 1780529598 ; total 0 ; last 0)
total: 8000 unlinks in 20 seconds: 400.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 2353 (time 1780529630.35 total 10.00 last 235.30)
 - open/close 4786 (time 1780529640.36 total 20.00 last 243.25)
 - open/close 7897 (time 1780529650.36 total 30.00 last 311.09)
total: 8000 open/close in 30.67 seconds: 260.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 4052
3956
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1780529705 ; total 0 ; last 0)
total: 8000 unlinks in 17 seconds: 470.588226 unlinks/second