== sanity test 124b: lru resize (performance test) ================================================================================= 01:58:51 (1783144731)
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 3235 (time 1783144745.61 total 10.00 last 323.44)
 - open/close 5886 (time 1783144755.62 total 20.01 last 264.92)
total: 8000 open/close in 26.47 seconds: 302.21 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 1783144839 ; total 0 ; last 0)
total: 8000 unlinks in 13 seconds: 615.384644 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3753 (time 1783144865.57 total 10.00 last 375.30)
 - open/close 7921 (time 1783144875.57 total 20.00 last 416.74)
total: 8000 open/close in 20.21 seconds: 395.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 4006
4001
ls -la is 32% faster with lru resize enabled
 - unlinked 0 (time 1783144933 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second