== sanity test 124b: lru resize (performance test) ================================================================================= 11:58:43 (1783958323)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 919 (time 1783958338.53 total 10.00 last 91.86)
 - open/close 1832 (time 1783958348.53 total 20.01 last 91.23)
 - open/close 2650 (time 1783958358.54 total 30.01 last 81.78)
 - open/close 3580 (time 1783958368.54 total 40.02 last 92.94)
 - open/close 4437 (time 1783958378.55 total 50.03 last 85.65)
 - open/close 5298 (time 1783958388.55 total 60.03 last 86.07)
 - open/close 6328 (time 1783958398.56 total 70.04 last 102.95)
 - open/close 7242 (time 1783958408.57 total 80.05 last 91.29)
total: 8000 open/close in 88.94 seconds: 89.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1783958583 ; total 0 ; last 0)
total: 8000 unlinks in 89 seconds: 89.887642 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 936 (time 1783958687.93 total 10.01 last 93.55)
 - open/close 1798 (time 1783958697.93 total 20.01 last 86.20)
 - open/close 2647 (time 1783958707.94 total 30.01 last 84.86)
 - open/close 3494 (time 1783958717.94 total 40.02 last 84.64)
 - open/close 4277 (time 1783958727.95 total 50.03 last 78.23)
 - open/close 5074 (time 1783958737.97 total 60.04 last 79.58)
 - open/close 6221 (time 1783958747.97 total 70.04 last 114.67)
 - open/close 7594 (time 1783958757.97 total 80.05 last 137.28)
total: 8000 open/close in 84.50 seconds: 94.68 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4052
3956
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1783958873 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second