== sanity test 124b: lru resize (performance test) ================================================================================= 23:57:22 (1789358242)
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 3358 (time 1789358257.57 total 10.00 last 335.75)
 - open/close 7109 (time 1789358267.57 total 20.00 last 375.03)
total: 8000 open/close in 22.51 seconds: 355.44 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 74 seconds
lru_size = 400
400
 - unlinked 0 (time 1789358347 ; total 0 ; last 0)
total: 8000 unlinks in 15 seconds: 533.333313 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3122 (time 1789358374.50 total 10.00 last 312.13)
 - open/close 6229 (time 1789358384.50 total 20.00 last 310.70)
total: 8000 open/close in 25.57 seconds: 312.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 56 seconds
lru_size = 4052
3955
ls -la is 24% faster with lru resize enabled
 - unlinked 0 (time 1789358454 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second