== sanity test 124b: lru resize (performance test) ================================================================================= 13:40:04 (1779212404)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1093 (time 1779212416.26 total 10.00 last 109.29)
 - open/close 2117 (time 1779212426.26 total 20.00 last 102.40)
 - open/close 3064 (time 1779212436.27 total 30.01 last 94.61)
 - open/close 3970 (time 1779212446.29 total 40.02 last 90.47)
 - open/close 4941 (time 1779212456.29 total 50.03 last 97.04)
 - open/close 5938 (time 1779212466.30 total 60.04 last 99.65)
 - open/close 6929 (time 1779212476.31 total 70.04 last 99.03)
 - open/close 7912 (time 1779212486.31 total 80.05 last 98.25)
total: 8000 open/close in 80.91 seconds: 98.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 107 seconds
lru_size = 400
 - unlinked 0 (time 1779212599 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second
 - open/close 1220 (time 1779212669.83 total 10.00 last 121.95)
 - open/close 2323 (time 1779212679.83 total 20.01 last 110.27)
 - open/close 3373 (time 1779212689.83 total 30.01 last 104.99)
 - open/close 4439 (time 1779212699.84 total 40.01 last 106.58)
 - open/close 5575 (time 1779212709.84 total 50.01 last 113.57)
 - open/close 6817 (time 1779212719.84 total 60.01 last 124.18)
total: 8000 open/close in 69.14 seconds: 115.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 42 seconds
lru_size = 8005
ls -la is 60% faster with lru resize enabled
 - unlinked 0 (time 1779212782 ; total 0 ; last 0)
total: 8000 unlinks in 34 seconds: 235.294113 unlinks/second