== sanity test 124b: lru resize (performance test) ================================================================================= 01:22:03 (1787376123)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 899 (time 1787376138.43 total 10.00 last 89.87)
 - open/close 1778 (time 1787376148.45 total 20.02 last 87.78)
 - open/close 2668 (time 1787376158.45 total 30.02 last 88.97)
 - open/close 3482 (time 1787376168.45 total 40.03 last 81.35)
 - open/close 4274 (time 1787376178.46 total 50.03 last 79.15)
 - open/close 5088 (time 1787376188.46 total 60.04 last 81.38)
 - open/close 5927 (time 1787376198.47 total 70.04 last 83.87)
 - open/close 6871 (time 1787376208.47 total 80.04 last 94.36)
 - open/close 7658 (time 1787376218.48 total 90.05 last 78.67)
total: 8000 open/close in 93.91 seconds: 85.19 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 135 seconds
lru_size = 400
400
 - unlinked 0 (time 1787376365 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 873 (time 1787376472.02 total 10.00 last 87.26)
 - open/close 1790 (time 1787376482.02 total 20.01 last 91.67)
 - open/close 2665 (time 1787376492.02 total 30.01 last 87.49)
 - open/close 3549 (time 1787376502.03 total 40.01 last 88.37)
 - open/close 4484 (time 1787376512.03 total 50.01 last 93.48)
 - open/close 5297 (time 1787376522.03 total 60.02 last 81.26)
 - open/close 6188 (time 1787376532.03 total 70.02 last 89.08)
 - open/close 7083 (time 1787376542.05 total 80.03 last 89.40)
 - open/close 7926 (time 1787376552.05 total 90.04 last 84.27)
total: 8000 open/close in 91.31 seconds: 87.62 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 81 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1787376653 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second