== sanity test 124b: lru resize (performance test) ================================================================================= 00:17:08 (1739510228)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1040 (time 1739510241.76 total 10.01 last 103.95)
 - open/close 2001 (time 1739510251.78 total 20.02 last 95.99)
 - open/close 2858 (time 1739510261.79 total 30.03 last 85.57)
 - open/close 3796 (time 1739510271.80 total 40.04 last 93.73)
 - open/close 4694 (time 1739510281.80 total 50.04 last 89.74)
 - open/close 5684 (time 1739510291.81 total 60.05 last 98.97)
 - open/close 6666 (time 1739510301.81 total 70.05 last 98.17)
 - open/close 7481 (time 1739510311.82 total 80.06 last 81.42)
total: 8000 open/close in 86.36 seconds: 92.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 150 seconds
lru_size = 400
 - unlinked 0 (time 1739510474 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
 - open/close 1016 (time 1739510571.81 total 10.00 last 101.59)
 - open/close 2225 (time 1739510581.82 total 20.01 last 120.77)
 - open/close 3263 (time 1739510591.82 total 30.01 last 103.77)
 - open/close 4402 (time 1739510601.83 total 40.02 last 113.80)
 - open/close 5775 (time 1739510611.83 total 50.02 last 137.28)
 - open/close 6861 (time 1739510621.83 total 60.03 last 108.57)
 - open/close 7906 (time 1739510631.84 total 70.03 last 104.45)
total: 8000 open/close in 70.90 seconds: 112.84 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 39 seconds
lru_size = 8005
ls -la is 74% faster with lru resize enabled
 - unlinked 0 (time 1739510682 ; total 0 ; last 0)
total: 8000 unlinks in 42 seconds: 190.476196 unlinks/second