== sanity test 124b: lru resize (performance test) ================================================================================= 04:15:02 (1787559302)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 847 (time 1787559316.51 total 10.01 last 84.63)
 - open/close 1631 (time 1787559326.51 total 20.01 last 78.39)
 - open/close 2346 (time 1787559336.51 total 30.01 last 71.49)
 - open/close 3165 (time 1787559346.52 total 40.02 last 81.78)
 - open/close 3931 (time 1787559356.55 total 50.05 last 76.39)
 - open/close 4765 (time 1787559366.56 total 60.06 last 83.30)
 - open/close 5496 (time 1787559376.57 total 70.07 last 73.04)
 - open/close 6208 (time 1787559386.58 total 80.08 last 71.12)
 - open/close 6903 (time 1787559396.60 total 90.10 last 69.38)
 - open/close 7614 (time 1787559406.61 total 100.11 last 71.04)
total: 8000 open/close in 104.06 seconds: 76.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
 - unlinked 0 (time 1787559579 ; total 0 ; last 0)
total: 8000 unlinks in 112 seconds: 71.428574 unlinks/second
 - open/close 959 (time 1787559706.12 total 10.00 last 95.86)
 - open/close 1855 (time 1787559716.12 total 20.01 last 89.57)
 - open/close 2714 (time 1787559726.13 total 30.02 last 85.84)
 - open/close 3395 (time 1787559736.13 total 40.02 last 68.09)
 - open/close 4026 (time 1787559746.14 total 50.03 last 63.03)
 - open/close 4702 (time 1787559756.14 total 60.03 last 67.56)
 - open/close 5528 (time 1787559766.16 total 70.05 last 82.45)
 - open/close 6305 (time 1787559776.18 total 80.06 last 77.60)
 - open/close 7077 (time 1787559786.18 total 90.07 last 77.17)
 - open/close 7976 (time 1787559796.19 total 100.08 last 89.84)
total: 8000 open/close in 100.38 seconds: 79.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 8005
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1787559915 ; total 0 ; last 0)
total: 8000 unlinks in 74 seconds: 108.108109 unlinks/second