== sanity test 124b: lru resize (performance test) ================================================================================= 07:48:40 (1788695320)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1073 (time 1788695333.31 total 10.00 last 107.26)
 - open/close 2176 (time 1788695343.32 total 20.01 last 110.25)
 - open/close 3318 (time 1788695353.32 total 30.01 last 114.14)
 - open/close 4447 (time 1788695363.33 total 40.02 last 112.81)
 - open/close 5568 (time 1788695373.33 total 50.03 last 112.06)
 - open/close 6701 (time 1788695383.34 total 60.03 last 113.22)
 - open/close 7887 (time 1788695393.34 total 70.03 last 118.57)
total: 8000 open/close in 70.94 seconds: 112.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 105 seconds
lru_size = 400
400
 - unlinked 0 (time 1788695505 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1136 (time 1788695580.21 total 10.01 last 113.52)
 - open/close 2197 (time 1788695590.21 total 20.01 last 106.05)
 - open/close 3303 (time 1788695600.22 total 30.02 last 110.55)
 - open/close 4485 (time 1788695610.22 total 40.02 last 118.15)
 - open/close 5658 (time 1788695620.23 total 50.03 last 117.23)
 - open/close 6931 (time 1788695630.23 total 60.03 last 127.25)
total: 8000 open/close in 69.42 seconds: 115.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 47 seconds
lru_size = 4006
4001
ls -la is 55% faster with lru resize enabled
 - unlinked 0 (time 1788695699 ; total 0 ; last 0)
total: 8000 unlinks in 38 seconds: 210.526321 unlinks/second