== sanity test 124b: lru resize (performance test) ================================================================================= 00:14:31 (1789186471)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 881 (time 1789186484.52 total 10.00 last 88.09)
 - open/close 1827 (time 1789186494.52 total 20.00 last 94.59)
 - open/close 2818 (time 1789186504.54 total 30.02 last 98.95)
 - open/close 3907 (time 1789186514.55 total 40.02 last 108.82)
 - open/close 4964 (time 1789186524.55 total 50.03 last 105.64)
 - open/close 5962 (time 1789186534.56 total 60.04 last 99.72)
 - open/close 6999 (time 1789186544.56 total 70.04 last 103.66)
total: 8000 open/close in 78.86 seconds: 101.45 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 109 seconds
lru_size = 400
 - unlinked 0 (time 1789186667 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second
 - open/close 972 (time 1789186746.78 total 10.01 last 97.14)
 - open/close 2009 (time 1789186756.79 total 20.01 last 103.69)
 - open/close 3004 (time 1789186766.79 total 30.01 last 99.43)
 - open/close 4115 (time 1789186776.79 total 40.02 last 111.08)
 - open/close 5223 (time 1789186786.80 total 50.02 last 110.76)
 - open/close 6388 (time 1789186796.81 total 60.03 last 116.40)
 - open/close 7444 (time 1789186806.81 total 70.04 last 105.53)
total: 8000 open/close in 76.15 seconds: 105.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 8005
ls -la is 54% faster with lru resize enabled
 - unlinked 0 (time 1789186874 ; total 0 ; last 0)
total: 8000 unlinks in 45 seconds: 177.777771 unlinks/second