== sanity test 124b: lru resize (performance test) ================================================================================= 08:52:07 (1787403127)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 781 (time 1787403141.51 total 10.02 last 77.98)
 - open/close 1514 (time 1787403151.52 total 20.02 last 73.23)
 - open/close 2219 (time 1787403161.52 total 30.03 last 70.46)
 - open/close 2972 (time 1787403171.54 total 40.05 last 75.16)
 - open/close 3728 (time 1787403181.54 total 50.05 last 75.58)
 - open/close 4455 (time 1787403191.55 total 60.06 last 72.66)
 - open/close 5122 (time 1787403201.56 total 70.07 last 66.64)
 - open/close 5803 (time 1787403211.56 total 80.07 last 68.09)
 - open/close 6518 (time 1787403221.57 total 90.07 last 71.45)
 - open/close 7243 (time 1787403231.58 total 100.09 last 72.41)
 - open/close 7944 (time 1787403241.59 total 110.10 last 70.02)
total: 8000 open/close in 110.99 seconds: 72.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 183 seconds
lru_size = 400
400
 - unlinked 0 (time 1787403438 ; total 0 ; last 0)
total: 8000 unlinks in 123 seconds: 65.040649 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 557 (time 1787403577.39 total 10.01 last 55.63)
 - open/close 1324 (time 1787403587.40 total 20.03 last 76.58)
 - open/close 2070 (time 1787403597.40 total 30.03 last 74.58)
 - open/close 2807 (time 1787403607.42 total 40.04 last 73.60)
 - open/close 3580 (time 1787403617.42 total 50.05 last 77.26)
 - open/close 4245 (time 1787403627.42 total 60.05 last 66.50)
 - open/close 4941 (time 1787403637.42 total 70.05 last 69.59)
 - open/close 5735 (time 1787403647.43 total 80.06 last 79.35)
 - open/close 6429 (time 1787403657.43 total 90.06 last 69.37)
 - open/close 7105 (time 1787403667.44 total 100.07 last 67.57)
 - open/close 7843 (time 1787403677.44 total 110.07 last 73.75)
total: 8000 open/close in 111.99 seconds: 71.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4052
3955
ls -la is 53% faster with lru resize enabled
 - unlinked 0 (time 1787403786 ; total 0 ; last 0)
total: 8000 unlinks in 69 seconds: 115.942032 unlinks/second