== sanity test 124b: lru resize (performance test) ================================================================================= 20:01:18 (1781222478)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 853 (time 1781222492.83 total 10.01 last 85.24)
 - open/close 1670 (time 1781222502.83 total 20.01 last 81.69)
 - open/close 2584 (time 1781222512.84 total 30.02 last 91.30)
 - open/close 3477 (time 1781222522.85 total 40.02 last 89.28)
 - open/close 4360 (time 1781222532.85 total 50.03 last 88.23)
 - open/close 5168 (time 1781222542.86 total 60.03 last 80.77)
 - open/close 6037 (time 1781222552.87 total 70.05 last 86.79)
 - open/close 6820 (time 1781222562.87 total 80.05 last 78.27)
 - open/close 7676 (time 1781222572.90 total 90.08 last 85.35)
total: 8000 open/close in 93.90 seconds: 85.20 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 165 seconds
lru_size = 400
400
 - unlinked 0 (time 1781222752 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 863 (time 1781222866.36 total 10.00 last 86.29)
 - open/close 1788 (time 1781222876.38 total 20.02 last 92.37)
 - open/close 2651 (time 1781222886.38 total 30.02 last 86.24)
 - open/close 3503 (time 1781222896.39 total 40.02 last 85.18)
 - open/close 4363 (time 1781222906.39 total 50.03 last 85.99)
 - open/close 5255 (time 1781222916.39 total 60.03 last 89.16)
 - open/close 6051 (time 1781222926.40 total 70.03 last 79.56)
 - open/close 6799 (time 1781222936.40 total 80.04 last 74.75)
 - open/close 7412 (time 1781222946.41 total 90.05 last 61.26)
total: 8000 open/close in 98.89 seconds: 80.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1781223057 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second