== sanity test 124b: lru resize (performance test) ================================================================================= 13:12:23 (1790010743)
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 759 (time 1790010758.49 total 10.03 last 75.67)
 - open/close 1396 (time 1790010768.50 total 20.03 last 63.69)
 - open/close 2142 (time 1790010778.50 total 30.03 last 74.60)
 - open/close 2888 (time 1790010788.50 total 40.04 last 74.54)
 - open/close 3682 (time 1790010798.50 total 50.04 last 79.40)
 - open/close 4449 (time 1790010808.52 total 60.05 last 76.62)
 - open/close 5171 (time 1790010818.52 total 70.05 last 72.18)
 - open/close 6030 (time 1790010828.52 total 80.06 last 85.86)
 - open/close 6858 (time 1790010838.53 total 90.07 last 82.74)
 - open/close 7639 (time 1790010848.54 total 100.08 last 78.01)
total: 8000 open/close in 104.40 seconds: 76.63 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 164 seconds
lru_size = 400
400
 - unlinked 0 (time 1790011029 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 995 (time 1790011139.51 total 10.00 last 99.47)
 - open/close 1910 (time 1790011149.53 total 20.02 last 91.31)
 - open/close 2633 (time 1790011159.55 total 30.04 last 72.20)
 - open/close 3570 (time 1790011169.56 total 40.05 last 93.60)
 - open/close 4561 (time 1790011179.56 total 50.05 last 99.08)
 - open/close 5513 (time 1790011189.56 total 60.05 last 95.18)
 - open/close 6440 (time 1790011199.57 total 70.06 last 92.62)
 - open/close 7212 (time 1790011209.57 total 80.06 last 77.19)
total: 8000 open/close in 89.91 seconds: 88.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1790011326 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second