== sanity test 124b: lru resize (performance test) ================================================================================= 13:03:56 (1789405436)
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 897 (time 1789405450.36 total 10.00 last 89.67)
 - open/close 1766 (time 1789405460.36 total 20.01 last 86.84)
 - open/close 2615 (time 1789405470.37 total 30.02 last 84.82)
 - open/close 3416 (time 1789405480.38 total 40.02 last 80.07)
 - open/close 4263 (time 1789405490.38 total 50.03 last 84.66)
 - open/close 5108 (time 1789405500.39 total 60.03 last 84.47)
 - open/close 5988 (time 1789405510.39 total 70.03 last 87.98)
 - open/close 6829 (time 1789405520.39 total 80.04 last 84.07)
 - open/close 7660 (time 1789405530.40 total 90.05 last 83.02)
total: 8000 open/close in 93.72 seconds: 85.36 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1789405679 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 837 (time 1789405791.45 total 10.01 last 83.62)
 - open/close 1703 (time 1789405801.45 total 20.01 last 86.59)
 - open/close 2532 (time 1789405811.45 total 30.01 last 82.89)
 - open/close 3338 (time 1789405821.46 total 40.02 last 80.53)
 - open/close 4121 (time 1789405831.46 total 50.02 last 78.27)
 - open/close 4858 (time 1789405841.46 total 60.02 last 73.69)
 - open/close 5653 (time 1789405851.47 total 70.03 last 79.47)
 - open/close 6447 (time 1789405861.47 total 80.04 last 79.34)
 - open/close 7274 (time 1789405871.48 total 90.04 last 82.66)
total: 8000 open/close in 98.12 seconds: 81.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1789405974 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second