== sanity test 124b: lru resize (performance test) ================================================================================= 02:18:53 (1788675533)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 845 (time 1788675548.39 total 10.00 last 84.49)
 - open/close 1687 (time 1788675558.41 total 20.02 last 84.06)
 - open/close 2525 (time 1788675568.42 total 30.03 last 83.73)
 - open/close 3414 (time 1788675578.43 total 40.03 last 88.85)
 - open/close 4226 (time 1788675588.43 total 50.03 last 81.19)
 - open/close 5039 (time 1788675598.43 total 60.03 last 81.30)
 - open/close 5970 (time 1788675608.45 total 70.06 last 92.88)
 - open/close 7029 (time 1788675618.45 total 80.06 last 105.85)
 - open/close 7927 (time 1788675628.46 total 90.07 last 89.77)
total: 8000 open/close in 90.99 seconds: 87.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
 - unlinked 0 (time 1788675800 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
 - open/close 877 (time 1788675903.70 total 10.01 last 87.61)
 - open/close 1639 (time 1788675913.70 total 20.01 last 76.19)
 - open/close 2470 (time 1788675923.71 total 30.02 last 83.07)
 - open/close 3317 (time 1788675933.72 total 40.02 last 84.62)
 - open/close 4033 (time 1788675943.72 total 50.03 last 71.56)
 - open/close 4921 (time 1788675953.74 total 60.05 last 88.64)
 - open/close 5816 (time 1788675963.74 total 70.05 last 89.49)
 - open/close 6656 (time 1788675973.75 total 80.06 last 83.93)
 - open/close 7624 (time 1788675983.75 total 90.06 last 96.80)
total: 8000 open/close in 94.39 seconds: 84.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 8005
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1788676088 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second