== sanity test 124b: lru resize (performance test) ================================================================================= 12:00:16 (1788624016)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 758 (time 1788624030.40 total 10.00 last 75.76)
 - open/close 1561 (time 1788624040.40 total 20.00 last 80.30)
 - open/close 2375 (time 1788624050.41 total 30.01 last 81.38)
 - open/close 3094 (time 1788624060.41 total 40.02 last 71.85)
 - open/close 3756 (time 1788624070.43 total 50.03 last 66.12)
 - open/close 4375 (time 1788624080.45 total 60.06 last 61.73)
 - open/close 5017 (time 1788624090.47 total 70.07 last 64.12)
 - open/close 5785 (time 1788624100.47 total 80.07 last 76.78)
 - open/close 6588 (time 1788624110.47 total 90.07 last 80.27)
 - open/close 7384 (time 1788624120.47 total 100.07 last 79.60)
total: 8000 open/close in 108.10 seconds: 74.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 167 seconds
lru_size = 400
 - unlinked 0 (time 1788624306 ; total 0 ; last 0)
total: 8000 unlinks in 115 seconds: 69.565216 unlinks/second
 - open/close 777 (time 1788624436.55 total 10.01 last 77.65)
 - open/close 1577 (time 1788624446.55 total 20.01 last 79.96)
 - open/close 2352 (time 1788624456.57 total 30.02 last 77.40)
 - open/close 3087 (time 1788624466.57 total 40.03 last 73.48)
 - open/close 3863 (time 1788624476.57 total 50.03 last 77.57)
 - open/close 4649 (time 1788624486.59 total 60.05 last 78.48)
 - open/close 5412 (time 1788624496.59 total 70.05 last 76.27)
 - open/close 6246 (time 1788624506.59 total 80.05 last 83.39)
 - open/close 7047 (time 1788624516.61 total 90.06 last 80.00)
 - open/close 7834 (time 1788624526.61 total 100.07 last 78.66)
total: 8000 open/close in 102.31 seconds: 78.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 8005
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1788624634 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second