== sanity test 124b: lru resize (performance test) ================================================================================= 19:11:36 (1786835496)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1181 (time 1786835509.92 total 10.00 last 118.05)
 - open/close 2381 (time 1786835519.92 total 20.01 last 119.98)
 - open/close 3713 (time 1786835529.92 total 30.01 last 133.12)
 - open/close 4872 (time 1786835539.93 total 40.02 last 115.81)
 - open/close 6131 (time 1786835549.94 total 50.03 last 125.79)
 - open/close 7357 (time 1786835559.95 total 60.04 last 122.44)
total: 8000 open/close in 65.50 seconds: 122.14 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 111 seconds
lru_size = 400
400
 - unlinked 0 (time 1786835682 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1373 (time 1786835756.70 total 10.00 last 137.26)
 - open/close 2780 (time 1786835766.70 total 20.01 last 140.65)
 - open/close 4152 (time 1786835776.71 total 30.01 last 137.16)
 - open/close 6009 (time 1786835786.72 total 40.02 last 185.51)
 - open/close 7393 (time 1786835796.72 total 50.02 last 138.40)
total: 8000 open/close in 54.51 seconds: 146.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 50 seconds
lru_size = 4052
3955
ls -la is 54% faster with lru resize enabled
 - unlinked 0 (time 1786835863 ; total 0 ; last 0)
total: 8000 unlinks in 35 seconds: 228.571426 unlinks/second