== sanity test 124b: lru resize (performance test) ================================================================================= 12:40:59 (1788540059)
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 785 (time 1788540074.97 total 10.02 last 78.38)
 - open/close 1505 (time 1788540084.98 total 20.02 last 71.94)
 - open/close 2203 (time 1788540094.99 total 30.04 last 69.72)
 - open/close 2847 (time 1788540105.00 total 40.04 last 64.38)
 - open/close 3543 (time 1788540115.00 total 50.04 last 69.57)
 - open/close 4207 (time 1788540125.00 total 60.05 last 66.37)
 - open/close 4854 (time 1788540135.01 total 70.05 last 64.67)
 - open/close 5631 (time 1788540145.01 total 80.05 last 77.69)
 - open/close 6368 (time 1788540155.02 total 90.06 last 73.66)
 - open/close 7034 (time 1788540165.02 total 100.07 last 66.56)
 - open/close 7719 (time 1788540175.02 total 110.07 last 68.50)
total: 8000 open/close in 113.79 seconds: 70.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 167 seconds
lru_size = 400
400
 - unlinked 0 (time 1788540358 ; total 0 ; last 0)
total: 8000 unlinks in 114 seconds: 70.175438 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 671 (time 1788540488.68 total 10.01 last 67.03)
 - open/close 1361 (time 1788540498.69 total 20.02 last 68.92)
 - open/close 2064 (time 1788540508.70 total 30.04 last 70.21)
 - open/close 2746 (time 1788540518.70 total 40.04 last 68.18)
 - open/close 3510 (time 1788540528.72 total 50.05 last 76.29)
 - open/close 4160 (time 1788540538.72 total 60.06 last 64.96)
 - open/close 4971 (time 1788540548.73 total 70.06 last 81.06)
 - open/close 5630 (time 1788540558.74 total 80.08 last 65.80)
 - open/close 6338 (time 1788540568.75 total 90.08 last 70.78)
 - open/close 7089 (time 1788540578.75 total 100.08 last 75.08)
 - open/close 7857 (time 1788540588.75 total 110.09 last 76.78)
total: 8000 open/close in 112.12 seconds: 71.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 115 seconds
lru_size = 4052
3955
ls -la is 31% faster with lru resize enabled
 - unlinked 0 (time 1788540736 ; total 0 ; last 0)
total: 8000 unlinks in 75 seconds: 106.666664 unlinks/second