== sanity test 124b: lru resize (performance test) ================================================================================= 02:24:20 (1783146260)
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 3492 (time 1783146274.76 total 10.00 last 349.12)
 - open/close 7315 (time 1783146284.76 total 20.00 last 382.23)
total: 8000 open/close in 21.99 seconds: 363.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 80 seconds
lru_size = 400
400
 - unlinked 0 (time 1783146370 ; 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 4382 (time 1783146396.34 total 10.00 last 438.14)
total: 8000 open/close in 19.92 seconds: 401.66 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 65 seconds
lru_size = 4006
4001
ls -la is 18% faster with lru resize enabled
 - unlinked 0 (time 1783146480 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second