== sanity test 124b: lru resize (performance test) ================================================================================= 20:10:01 (1787616601)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 601 (time 1787616618.41 total 10.04 last 59.85)
 - open/close 1282 (time 1787616628.43 total 20.06 last 67.96)
 - open/close 1994 (time 1787616638.44 total 30.07 last 71.13)
 - open/close 2729 (time 1787616648.44 total 40.07 last 73.49)
 - open/close 3622 (time 1787616658.44 total 50.08 last 89.24)
 - open/close 4367 (time 1787616668.47 total 60.10 last 74.34)
 - open/close 5211 (time 1787616678.48 total 70.11 last 84.30)
 - open/close 5968 (time 1787616688.48 total 80.12 last 75.66)
 - open/close 6727 (time 1787616698.48 total 90.12 last 75.89)
 - open/close 7578 (time 1787616708.50 total 100.13 last 84.99)
total: 8000 open/close in 105.39 seconds: 75.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 174 seconds
lru_size = 400
 - unlinked 0 (time 1787616897 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second
 - open/close 825 (time 1787616976.91 total 10.00 last 82.47)
 - open/close 1691 (time 1787616986.91 total 20.01 last 86.56)
 - open/close 2574 (time 1787616996.92 total 30.01 last 88.24)
 - open/close 3385 (time 1787617006.92 total 40.02 last 81.06)
 - open/close 4191 (time 1787617016.94 total 50.03 last 80.50)
 - open/close 4949 (time 1787617026.94 total 60.04 last 75.73)
 - open/close 5685 (time 1787617036.97 total 70.07 last 73.42)
 - open/close 6464 (time 1787617046.98 total 80.08 last 77.82)
 - open/close 7364 (time 1787617056.98 total 90.08 last 89.98)
total: 8000 open/close in 97.67 seconds: 81.91 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 71 seconds
lru_size = 8005
ls -la is 59% faster with lru resize enabled
 - unlinked 0 (time 1787617156 ; total 0 ; last 0)
total: 8000 unlinks in 72 seconds: 111.111115 unlinks/second