== sanity test 124b: lru resize (performance test) ================================================================================= 08:51:05 (1743511865)
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 3052 (time 1743511876.79 total 10.00 last 305.09)
 - open/close 5525 (time 1743511886.79 total 20.01 last 247.26)
total: 8000 open/close in 29.00 seconds: 275.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 65 seconds
lru_size = 400
400
 - unlinked 0 (time 1743511962 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3586 (time 1743511985.04 total 10.00 last 358.57)
total: 8000 open/close in 19.18 seconds: 417.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 10 seconds
lru_size = 4006
4001
ls -la is 84% faster with lru resize enabled
 - unlinked 0 (time 1743512009 ; total 0 ; last 0)
total: 8000 unlinks in 11 seconds: 727.272705 unlinks/second