== sanity test 124b: lru resize (performance test) ================================================================================= 08:07:38 (1790683658)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 796 (time 1790683674.98 total 10.00 last 79.57)
 - open/close 1625 (time 1790683684.98 total 20.00 last 82.90)
 - open/close 2513 (time 1790683694.98 total 30.01 last 88.78)
 - open/close 3190 (time 1790683704.99 total 40.01 last 67.67)
 - open/close 3810 (time 1790683714.99 total 50.02 last 61.96)
 - open/close 4370 (time 1790683725.00 total 60.02 last 55.97)
 - open/close 5152 (time 1790683735.01 total 70.03 last 78.14)
 - open/close 5985 (time 1790683745.02 total 80.04 last 83.23)
 - open/close 6848 (time 1790683755.02 total 90.04 last 86.29)
 - open/close 7545 (time 1790683765.02 total 100.04 last 69.68)
total: 8000 open/close in 106.07 seconds: 75.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 179 seconds
lru_size = 400
 - unlinked 0 (time 1790683963 ; total 0 ; last 0)
total: 8000 unlinks in 110 seconds: 72.727272 unlinks/second
 - open/close 702 (time 1790684090.10 total 10.00 last 70.18)
 - open/close 1579 (time 1790684100.10 total 20.01 last 87.65)
 - open/close 2425 (time 1790684110.12 total 30.02 last 84.47)
 - open/close 3052 (time 1790684120.14 total 40.05 last 62.57)
 - open/close 3704 (time 1790684130.15 total 50.06 last 65.14)
 - open/close 4282 (time 1790684140.15 total 60.06 last 57.78)
 - open/close 5164 (time 1790684150.16 total 70.06 last 88.17)
 - open/close 5974 (time 1790684160.16 total 80.07 last 80.95)
 - open/close 6830 (time 1790684170.17 total 90.07 last 85.54)
 - open/close 7724 (time 1790684180.17 total 100.08 last 89.37)
total: 8000 open/close in 103.28 seconds: 77.46 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 106 seconds
lru_size = 8005
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1790684312 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second