== sanity test 124b: lru resize (performance test) ================================================================================= 18:52:05 (1748472725)
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 2749 (time 1748472736.90 total 10.00 last 274.86)
 - open/close 7217 (time 1748472746.90 total 20.00 last 446.74)
total: 8000 open/close in 21.66 seconds: 369.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 49 seconds
lru_size = 400
400
 - unlinked 0 (time 1748472799 ; total 0 ; last 0)
total: 8000 unlinks in 10 seconds: 800.000000 unlinks/second
striped dir -i0 -c2 -H crush /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 4852 (time 1748472820.30 total 10.00 last 485.18)
total: 8000 open/close in 16.28 seconds: 491.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 11 seconds
lru_size = 4052
3955
ls -la is 77% faster with lru resize enabled
 - unlinked 0 (time 1748472841 ; total 0 ; last 0)
total: 8000 unlinks in 12 seconds: 666.666687 unlinks/second