== sanity test 124b: lru resize (performance test) ================================================================================= 11:59:19 (1753372759)
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 2745 (time 1753372772.01 total 10.01 last 274.33)
 - open/close 5905 (time 1753372782.01 total 20.01 last 315.94)
total: 8000 open/close in 26.65 seconds: 300.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 400
400
 - unlinked 0 (time 1753372870 ; total 0 ; last 0)
total: 8000 unlinks in 15 seconds: 533.333313 unlinks/second
striped dir -i0 -c2 -H crush2 /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4828 (time 1753372896.73 total 10.00 last 482.73)
total: 8000 open/close in 16.28 seconds: 491.37 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 49 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1753372958 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second