== sanity test 124b: lru resize (performance test) ================================================================================= 06:47:50 (1744886870)
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 3901 (time 1744886882.10 total 10.00 last 390.08)
 - open/close 7383 (time 1744886892.10 total 20.00 last 348.14)
total: 8000 open/close in 21.46 seconds: 372.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 53 seconds
lru_size = 400
400
 - unlinked 0 (time 1744886948 ; total 0 ; last 0)
total: 8000 unlinks in 8 seconds: 1000.000000 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4127 (time 1744886968.60 total 10.00 last 412.66)
total: 8000 open/close in 17.11 seconds: 467.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 12 seconds
lru_size = 4052
3955
ls -la is 77% faster with lru resize enabled
 - unlinked 0 (time 1744886992 ; total 0 ; last 0)
total: 8000 unlinks in 9 seconds: 888.888916 unlinks/second