== sanity test 124b: lru resize (performance test) ================================================================================= 03:34:26 (1788939266)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 757 (time 1788939282.02 total 10.00 last 75.67)
 - open/close 1407 (time 1788939292.04 total 20.03 last 64.85)
 - open/close 2089 (time 1788939302.04 total 30.03 last 68.17)
 - open/close 2880 (time 1788939312.04 total 40.03 last 79.09)
 - open/close 3658 (time 1788939322.05 total 50.03 last 77.79)
 - open/close 4455 (time 1788939332.05 total 60.04 last 79.65)
 - open/close 5199 (time 1788939342.05 total 70.04 last 74.40)
 - open/close 6100 (time 1788939352.06 total 80.05 last 90.05)
 - open/close 6846 (time 1788939362.06 total 90.05 last 74.56)
 - open/close 7619 (time 1788939372.06 total 100.05 last 77.30)
total: 8000 open/close in 104.43 seconds: 76.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 198 seconds
lru_size = 400
400
 - unlinked 0 (time 1788939585 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 751 (time 1788939703.68 total 10.01 last 75.00)
 - open/close 1409 (time 1788939713.69 total 20.02 last 65.72)
 - open/close 2124 (time 1788939723.70 total 30.03 last 71.45)
 - open/close 2863 (time 1788939733.70 total 40.03 last 73.90)
 - open/close 3598 (time 1788939743.70 total 50.03 last 73.48)
 - open/close 4206 (time 1788939753.71 total 60.04 last 60.74)
 - open/close 4744 (time 1788939763.71 total 70.05 last 53.77)
 - open/close 5417 (time 1788939773.74 total 80.07 last 67.16)
 - open/close 6115 (time 1788939783.74 total 90.07 last 69.79)
 - open/close 6778 (time 1788939793.77 total 100.10 last 66.11)
 - open/close 7463 (time 1788939803.77 total 110.10 last 68.50)
total: 8000 open/close in 120.00 seconds: 66.67 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 113 seconds
lru_size = 4006
4001
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1788939949 ; total 0 ; last 0)
total: 8000 unlinks in 76 seconds: 105.263161 unlinks/second