== sanity test 124b: lru resize (performance test) ================================================================================= 18:46:55 (1787870815)
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 787 (time 1787870829.95 total 10.01 last 78.64)
 - open/close 1518 (time 1787870839.96 total 20.01 last 73.05)
 - open/close 2328 (time 1787870849.96 total 30.01 last 80.99)
 - open/close 3139 (time 1787870859.96 total 40.02 last 81.10)
 - open/close 3977 (time 1787870869.96 total 50.02 last 83.76)
 - open/close 4871 (time 1787870879.97 total 60.03 last 89.34)
 - open/close 5681 (time 1787870889.97 total 70.03 last 80.97)
 - open/close 6520 (time 1787870899.98 total 80.04 last 83.86)
 - open/close 7316 (time 1787870909.99 total 90.05 last 79.50)
total: 8000 open/close in 98.28 seconds: 81.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1787871065 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 761 (time 1787871176.68 total 10.01 last 76.04)
 - open/close 1514 (time 1787871186.68 total 20.02 last 75.24)
 - open/close 2306 (time 1787871196.69 total 30.02 last 79.18)
 - open/close 3176 (time 1787871206.69 total 40.03 last 86.93)
 - open/close 4093 (time 1787871216.70 total 50.03 last 91.67)
 - open/close 4916 (time 1787871226.70 total 60.04 last 82.24)
 - open/close 5694 (time 1787871236.71 total 70.04 last 77.74)
 - open/close 6619 (time 1787871246.72 total 80.05 last 92.41)
 - open/close 7488 (time 1787871256.73 total 90.06 last 86.84)
total: 8000 open/close in 96.52 seconds: 82.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 75 seconds
lru_size = 4052
3955
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1787871353 ; total 0 ; last 0)
total: 8000 unlinks in 53 seconds: 150.943390 unlinks/second