{"action":"closed","issue":{"url":"https://api.github.com/repos/slembcke/Chipmunk2D/issues/103","labels_url":"https://api.github.com/repos/slembcke/Chipmunk2D/issues/103/labels{/name}","comments_url":"https://api.github.com/repos/slembcke/Chipmunk2D/issues/103/comments","events_url":"https://api.github.com/repos/slembcke/Chipmunk2D/issues/103/events","html_url":"https://github.com/slembcke/Chipmunk2D/issues/103","id":60494440,"number":103,"title":"NEON vector optimization does not improve the performance...","user":{"login":"spacelan","id":3382212,"avatar_url":"https://avatars.githubusercontent.com/u/3382212?v=3","gravatar_id":"","url":"https://api.github.com/users/spacelan","html_url":"https://github.com/spacelan","followers_url":"https://api.github.com/users/spacelan/followers","following_url":"https://api.github.com/users/spacelan/following{/other_user}","gists_url":"https://api.github.com/users/spacelan/gists{/gist_id}","starred_url":"https://api.github.com/users/spacelan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/spacelan/subscriptions","organizations_url":"https://api.github.com/users/spacelan/orgs","repos_url":"https://api.github.com/users/spacelan/repos","events_url":"https://api.github.com/users/spacelan/events{/privacy}","received_events_url":"https://api.github.com/users/spacelan/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-03-10T12:51:22Z","updated_at":"2015-06-29T20:22:53Z","closed_at":"2015-06-29T20:22:53Z","body":"The NEON vector optimization do improve the performance if I compile the code without compiler optimization. But if I compile the code with compiler optimization, the performance is just equal to the original code.\r\n\r\nIn this blog http://howlingmoonsoftware.com/wordpress/chipmunk-pro-goes-neon-19-40-faster/, slembcke said he got a 40% speedup using the NEON vector optimization. This result is similar to the result that I compile code without compiler optimization.\r\n\r\nSo, I want to know whether slembcke compiled the code using compiler optimization and how he tested the demo."}}