== sanity test 124b: lru resize (performance test) ================================================================================= 12:58:56 (1787590736)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 850 (time 1787590750.44 total 10.00 last 84.97)
 - open/close 1676 (time 1787590760.45 total 20.01 last 82.53)
 - open/close 2495 (time 1787590770.46 total 30.02 last 81.86)
 - open/close 3336 (time 1787590780.46 total 40.03 last 84.03)
 - open/close 4026 (time 1787590790.47 total 50.03 last 68.97)
 - open/close 4888 (time 1787590800.47 total 60.03 last 86.20)
 - open/close 5497 (time 1787590810.47 total 70.03 last 60.89)
 - open/close 6205 (time 1787590820.48 total 80.04 last 70.72)
 - open/close 6960 (time 1787590830.49 total 90.05 last 75.41)
 - open/close 7780 (time 1787590840.50 total 100.06 last 81.97)
total: 8000 open/close in 102.69 seconds: 77.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 185 seconds
lru_size = 400
 - unlinked 0 (time 1787591037 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
 - open/close 850 (time 1787591148.36 total 10.00 last 84.98)
 - open/close 1695 (time 1787591158.37 total 20.01 last 84.46)
 - open/close 2581 (time 1787591168.37 total 30.01 last 88.56)
 - open/close 3447 (time 1787591178.38 total 40.01 last 86.57)
 - open/close 4165 (time 1787591188.38 total 50.02 last 71.77)
 - open/close 5048 (time 1787591198.39 total 60.02 last 88.25)
 - open/close 5971 (time 1787591208.39 total 70.03 last 92.26)
 - open/close 6790 (time 1787591218.39 total 80.03 last 81.89)
 - open/close 7619 (time 1787591228.39 total 90.03 last 82.90)
total: 8000 open/close in 94.19 seconds: 84.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 8005
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1787591338 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second