== sanity test 124b: lru resize (performance test) ================================================================================= 19:10:13 (1788822613)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 827 (time 1788822629.58 total 10.00 last 82.68)
 - open/close 1652 (time 1788822639.59 total 20.01 last 82.47)
 - open/close 2633 (time 1788822649.60 total 30.02 last 97.97)
 - open/close 3528 (time 1788822659.61 total 40.03 last 89.42)
 - open/close 4428 (time 1788822669.62 total 50.04 last 89.91)
 - open/close 5251 (time 1788822679.62 total 60.04 last 82.28)
 - open/close 5865 (time 1788822689.62 total 70.05 last 61.37)
 - open/close 6552 (time 1788822699.63 total 80.06 last 68.63)
 - open/close 7576 (time 1788822709.64 total 90.06 last 102.32)
total: 8000 open/close in 94.45 seconds: 84.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 135 seconds
lru_size = 400
400
 - unlinked 0 (time 1788822861 ; 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 963 (time 1788822969.96 total 10.01 last 96.22)
 - open/close 1851 (time 1788822979.96 total 20.01 last 88.75)
 - open/close 2754 (time 1788822989.97 total 30.02 last 90.26)
 - open/close 3645 (time 1788822999.97 total 40.02 last 89.08)
 - open/close 4610 (time 1788823009.97 total 50.02 last 96.50)
 - open/close 5522 (time 1788823019.98 total 60.03 last 91.15)
 - open/close 6291 (time 1788823029.98 total 70.03 last 76.90)
 - open/close 7031 (time 1788823039.98 total 80.03 last 73.97)
 - open/close 7764 (time 1788823049.98 total 90.03 last 73.29)
total: 8000 open/close in 92.36 seconds: 86.62 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 31% faster with lru resize enabled
 - unlinked 0 (time 1788823163 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second