== sanity test 124b: lru resize (performance test) ================================================================================= 21:26:08 (1787793968)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 881 (time 1787793983.92 total 10.00 last 88.07)
 - open/close 1699 (time 1787793993.93 total 20.01 last 81.78)
 - open/close 2587 (time 1787794003.93 total 30.01 last 88.79)
 - open/close 3591 (time 1787794013.93 total 40.01 last 100.38)
 - open/close 4608 (time 1787794023.94 total 50.01 last 101.64)
 - open/close 5512 (time 1787794033.94 total 60.02 last 90.38)
 - open/close 6310 (time 1787794043.94 total 70.02 last 79.79)
 - open/close 7168 (time 1787794053.95 total 80.03 last 85.72)
total: 8000 open/close in 88.82 seconds: 90.07 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1787794218 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 821 (time 1787794326.57 total 10.01 last 82.05)
 - open/close 1717 (time 1787794336.58 total 20.01 last 89.55)
 - open/close 2506 (time 1787794346.60 total 30.04 last 78.71)
 - open/close 3385 (time 1787794356.60 total 40.04 last 87.90)
 - open/close 4346 (time 1787794366.61 total 50.05 last 96.02)
 - open/close 5273 (time 1787794376.62 total 60.06 last 92.57)
 - open/close 6114 (time 1787794386.63 total 70.07 last 84.05)
 - open/close 7001 (time 1787794396.63 total 80.07 last 88.69)
 - open/close 7868 (time 1787794406.64 total 90.07 last 86.62)
total: 8000 open/close in 91.52 seconds: 87.41 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4006
4001
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1787794519 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second