== sanity test 124b: lru resize (performance test) ================================================================================= 14:27:02 (1788632822)
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 821 (time 1788632838.62 total 10.02 last 81.98)
 - open/close 1659 (time 1788632848.63 total 20.02 last 83.72)
 - open/close 2597 (time 1788632858.63 total 30.03 last 93.79)
 - open/close 3351 (time 1788632868.64 total 40.04 last 75.31)
 - open/close 4215 (time 1788632878.65 total 50.04 last 86.35)
 - open/close 5162 (time 1788632888.65 total 60.05 last 94.66)
 - open/close 6006 (time 1788632898.69 total 70.09 last 84.07)
 - open/close 6813 (time 1788632908.69 total 80.09 last 80.67)
 - open/close 7819 (time 1788632918.70 total 90.09 last 100.58)
total: 8000 open/close in 91.79 seconds: 87.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 400
400
 - unlinked 0 (time 1788633012 ; 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 1085 (time 1788633120.92 total 10.00 last 108.46)
 - open/close 1985 (time 1788633130.93 total 20.01 last 89.91)
 - open/close 2984 (time 1788633140.93 total 30.02 last 99.83)
 - open/close 3878 (time 1788633150.94 total 40.03 last 89.32)
 - open/close 4759 (time 1788633160.95 total 50.04 last 88.04)
 - open/close 5614 (time 1788633170.96 total 60.05 last 85.40)
 - open/close 6673 (time 1788633180.96 total 70.05 last 105.88)
 - open/close 7699 (time 1788633190.97 total 80.06 last 102.54)
total: 8000 open/close in 82.81 seconds: 96.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4006
4001
ls -la is 4% slower with lru resize enabled
 - unlinked 0 (time 1788633302 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second