== sanity test 124b: lru resize (performance test) ================================================================================= 10:14:48 (1787580888)
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 768 (time 1787580903.89 total 10.01 last 76.70)
 - open/close 1593 (time 1787580913.90 total 20.02 last 82.44)
 - open/close 2514 (time 1787580923.90 total 30.02 last 92.05)
 - open/close 3368 (time 1787580933.90 total 40.03 last 85.39)
 - open/close 4390 (time 1787580943.91 total 50.03 last 102.13)
 - open/close 5359 (time 1787580953.91 total 60.04 last 96.86)
 - open/close 6212 (time 1787580963.93 total 70.06 last 85.13)
 - open/close 7089 (time 1787580973.93 total 80.06 last 87.68)
total: 8000 open/close in 89.82 seconds: 89.07 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 1787581141 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 982 (time 1787581253.73 total 10.00 last 98.18)
 - open/close 2011 (time 1787581263.74 total 20.01 last 102.79)
 - open/close 3069 (time 1787581273.77 total 30.04 last 105.54)
 - open/close 4037 (time 1787581283.77 total 40.04 last 96.74)
 - open/close 4824 (time 1787581293.78 total 50.05 last 78.63)
 - open/close 5700 (time 1787581303.79 total 60.06 last 87.53)
 - open/close 6542 (time 1787581313.80 total 70.07 last 84.09)
 - open/close 7320 (time 1787581323.81 total 80.08 last 77.75)
total: 8000 open/close in 87.10 seconds: 91.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4006
4001
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1787581446 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second