== sanity test 124b: lru resize (performance test) ================================================================================= 14:24:13 (1788200653)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 977 (time 1788200667.01 total 10.01 last 97.63)
 - open/close 1821 (time 1788200677.01 total 20.01 last 84.37)
 - open/close 2630 (time 1788200687.02 total 30.02 last 80.84)
 - open/close 3586 (time 1788200697.03 total 40.02 last 95.54)
 - open/close 4466 (time 1788200707.03 total 50.03 last 87.99)
 - open/close 5332 (time 1788200717.03 total 60.03 last 86.57)
 - open/close 6176 (time 1788200727.05 total 70.04 last 84.27)
 - open/close 7126 (time 1788200737.05 total 80.05 last 94.95)
total: 8000 open/close in 89.92 seconds: 88.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1788200912 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 898 (time 1788201019.65 total 10.00 last 89.80)
 - open/close 1853 (time 1788201029.65 total 20.00 last 95.46)
 - open/close 2833 (time 1788201039.67 total 30.02 last 97.84)
 - open/close 3701 (time 1788201049.67 total 40.02 last 86.78)
 - open/close 4647 (time 1788201059.67 total 50.03 last 94.57)
 - open/close 5549 (time 1788201069.67 total 60.03 last 90.19)
 - open/close 6451 (time 1788201079.68 total 70.03 last 90.14)
 - open/close 7323 (time 1788201089.69 total 80.05 last 87.09)
total: 8000 open/close in 87.96 seconds: 90.95 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788201211 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second