== sanity test 124b: lru resize (performance test) ================================================================================= 08:21:41 (1773663701)
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 4374 (time 1773663715.34 total 10.00 last 437.39)
 - open/close 7358 (time 1773663725.34 total 20.00 last 298.36)
total: 8000 open/close in 21.66 seconds: 369.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 400
400
 - unlinked 0 (time 1773663812 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4199 (time 1773663835.65 total 10.00 last 419.80)
total: 8000 open/close in 19.08 seconds: 419.34 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 61 seconds
lru_size = 4006
4001
ls -la is 25% faster with lru resize enabled
 - unlinked 0 (time 1773663914 ; total 0 ; last 0)
total: 8000 unlinks in 17 seconds: 470.588226 unlinks/second