== sanity test 124b: lru resize (performance test) ================================================================================= 07:43:44 (1787831024)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 814 (time 1787831039.73 total 10.01 last 81.34)
 - open/close 1579 (time 1787831049.74 total 20.02 last 76.44)
 - open/close 2321 (time 1787831059.74 total 30.02 last 74.16)
 - open/close 3103 (time 1787831069.77 total 40.04 last 78.04)
 - open/close 3901 (time 1787831079.77 total 50.04 last 79.78)
 - open/close 4603 (time 1787831089.77 total 60.05 last 70.17)
 - open/close 5227 (time 1787831099.78 total 70.06 last 62.34)
 - open/close 5958 (time 1787831109.79 total 80.07 last 73.04)
 - open/close 6754 (time 1787831119.80 total 90.07 last 79.54)
 - open/close 7484 (time 1787831129.81 total 100.09 last 72.91)
total: 8000 open/close in 106.58 seconds: 75.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
 - unlinked 0 (time 1787831298 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
 - open/close 796 (time 1787831407.61 total 10.01 last 79.54)
 - open/close 1626 (time 1787831417.62 total 20.02 last 82.93)
 - open/close 2418 (time 1787831427.63 total 30.02 last 79.17)
 - open/close 3271 (time 1787831437.63 total 40.03 last 85.24)
 - open/close 4136 (time 1787831447.65 total 50.04 last 86.39)
 - open/close 4981 (time 1787831457.65 total 60.05 last 84.46)
 - open/close 5803 (time 1787831467.66 total 70.05 last 82.17)
 - open/close 6672 (time 1787831477.66 total 80.05 last 86.87)
 - open/close 7433 (time 1787831487.66 total 90.06 last 76.08)
total: 8000 open/close in 96.68 seconds: 82.75 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 8005
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1787831592 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second