== sanity test 124b: lru resize (performance test) ================================================================================= 03:14:25 (1789456465)
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 937 (time 1789456480.74 total 10.00 last 93.66)
 - open/close 1763 (time 1789456490.74 total 20.01 last 82.58)
 - open/close 2622 (time 1789456500.75 total 30.02 last 85.81)
 - open/close 3546 (time 1789456510.75 total 40.02 last 92.38)
 - open/close 4333 (time 1789456520.76 total 50.02 last 78.68)
 - open/close 5149 (time 1789456530.76 total 60.03 last 81.54)
 - open/close 6029 (time 1789456540.77 total 70.03 last 87.97)
 - open/close 7004 (time 1789456550.77 total 80.03 last 97.50)
 - open/close 7769 (time 1789456560.77 total 90.03 last 76.50)
total: 8000 open/close in 92.59 seconds: 86.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 155 seconds
lru_size = 400
400
 - unlinked 0 (time 1789456728 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 875 (time 1789456832.94 total 10.01 last 87.41)
 - open/close 1767 (time 1789456842.94 total 20.01 last 89.16)
 - open/close 2695 (time 1789456852.95 total 30.02 last 92.73)
 - open/close 3523 (time 1789456862.95 total 40.03 last 82.77)
 - open/close 4315 (time 1789456872.97 total 50.04 last 79.08)
 - open/close 5183 (time 1789456882.97 total 60.04 last 86.79)
 - open/close 5889 (time 1789456892.98 total 70.05 last 70.53)
 - open/close 6570 (time 1789456902.99 total 80.06 last 68.02)
 - open/close 7285 (time 1789456913.00 total 90.07 last 71.45)
total: 8000 open/close in 98.85 seconds: 80.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1789457024 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second