== sanity test 124b: lru resize (performance test) ================================================================================= 16:00:54 (1783972854)
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 902 (time 1783972868.61 total 10.00 last 90.17)
 - open/close 1913 (time 1783972878.62 total 20.00 last 101.09)
 - open/close 2693 (time 1783972888.62 total 30.01 last 77.97)
 - open/close 3503 (time 1783972898.62 total 40.01 last 80.96)
 - open/close 4403 (time 1783972908.63 total 50.02 last 89.96)
 - open/close 5319 (time 1783972918.64 total 60.02 last 91.54)
 - open/close 6226 (time 1783972928.64 total 70.03 last 90.63)
 - open/close 7133 (time 1783972938.64 total 80.03 last 90.69)
total: 8000 open/close in 88.43 seconds: 90.47 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1783973106 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 904 (time 1783973209.73 total 10.00 last 90.36)
 - open/close 1891 (time 1783973219.76 total 20.04 last 98.38)
 - open/close 2883 (time 1783973229.77 total 30.05 last 99.08)
 - open/close 3928 (time 1783973239.78 total 40.05 last 104.47)
 - open/close 4933 (time 1783973249.78 total 50.06 last 100.44)
 - open/close 5979 (time 1783973259.78 total 60.06 last 104.60)
 - open/close 6996 (time 1783973269.79 total 70.07 last 101.62)
 - open/close 7938 (time 1783973279.80 total 80.08 last 94.08)
total: 8000 open/close in 80.76 seconds: 99.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1783973395 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second