== sanity test 124b: lru resize (performance test) ================================================================================= 11:15:05 (1786029305)
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 731 (time 1786029323.41 total 10.01 last 73.01)
 - open/close 1278 (time 1786029333.41 total 20.01 last 54.70)
 - open/close 1930 (time 1786029343.41 total 30.02 last 65.17)
 - open/close 2511 (time 1786029353.42 total 40.02 last 58.06)
 - open/close 3115 (time 1786029363.43 total 50.03 last 60.36)
 - open/close 3675 (time 1786029373.44 total 60.04 last 55.94)
 - open/close 4245 (time 1786029383.44 total 70.05 last 56.97)
 - open/close 4865 (time 1786029393.47 total 80.07 last 61.84)
 - open/close 5495 (time 1786029403.48 total 90.08 last 62.93)
 - open/close 6214 (time 1786029413.49 total 100.10 last 71.78)
 - open/close 6933 (time 1786029423.50 total 110.11 last 71.85)
 - open/close 7507 (time 1786029433.50 total 120.11 last 57.40)
total: 8000 open/close in 127.88 seconds: 62.56 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 210 seconds
lru_size = 400
400
 - unlinked 0 (time 1786029665 ; total 0 ; last 0)
total: 8000 unlinks in 125 seconds: 64.000000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 669 (time 1786029806.33 total 10.01 last 66.86)
 - open/close 1318 (time 1786029816.34 total 20.02 last 64.84)
 - open/close 1959 (time 1786029826.34 total 30.02 last 64.09)
 - open/close 2784 (time 1786029836.35 total 40.02 last 82.44)
 - open/close 3459 (time 1786029846.36 total 50.03 last 67.44)
 - open/close 4064 (time 1786029856.37 total 60.04 last 60.47)
 - open/close 4747 (time 1786029866.37 total 70.04 last 68.27)
 - open/close 5371 (time 1786029876.37 total 80.05 last 62.38)
 - open/close 6373 (time 1786029886.38 total 90.05 last 100.16)
 - open/close 7072 (time 1786029896.40 total 100.07 last 69.75)
 - open/close 7853 (time 1786029906.42 total 110.09 last 77.97)
total: 8000 open/close in 112.00 seconds: 71.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 119 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1786030054 ; total 0 ; last 0)
total: 8000 unlinks in 84 seconds: 95.238098 unlinks/second