== sanity test 124b: lru resize (performance test) ================================================================================= 04:08:45 (1788854925)
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 1029 (time 1788854940.94 total 10.00 last 102.87)
 - open/close 1852 (time 1788854950.94 total 20.01 last 82.26)
 - open/close 2939 (time 1788854960.95 total 30.01 last 108.65)
 - open/close 3807 (time 1788854970.95 total 40.02 last 86.75)
 - open/close 4564 (time 1788854980.95 total 50.02 last 75.69)
 - open/close 5167 (time 1788854990.96 total 60.02 last 60.27)
 - open/close 5800 (time 1788855000.98 total 70.04 last 63.17)
 - open/close 6791 (time 1788855010.99 total 80.06 last 98.98)
 - open/close 7766 (time 1788855021.00 total 90.06 last 97.46)
total: 8000 open/close in 93.57 seconds: 85.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 149 seconds
lru_size = 400
400
 - unlinked 0 (time 1788855184 ; total 0 ; last 0)
total: 8000 unlinks in 110 seconds: 72.727272 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 837 (time 1788855309.95 total 10.01 last 83.62)
 - open/close 1734 (time 1788855319.96 total 20.02 last 89.64)
 - open/close 2461 (time 1788855329.96 total 30.02 last 72.70)
 - open/close 3068 (time 1788855339.98 total 40.03 last 60.59)
 - open/close 3609 (time 1788855349.98 total 50.04 last 54.09)
 - open/close 4341 (time 1788855359.99 total 60.04 last 73.14)
 - open/close 5080 (time 1788855369.99 total 70.05 last 73.87)
 - open/close 5928 (time 1788855380.00 total 80.05 last 84.77)
 - open/close 6611 (time 1788855390.00 total 90.05 last 68.28)
 - open/close 7573 (time 1788855400.00 total 100.06 last 96.14)
total: 8000 open/close in 104.81 seconds: 76.33 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 108 seconds
lru_size = 4052
3955
ls -la is 27% faster with lru resize enabled
 - unlinked 0 (time 1788855542 ; total 0 ; last 0)
total: 8000 unlinks in 87 seconds: 91.954025 unlinks/second