{"action":"created","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/1417","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/1417/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/1417/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/1417/events","html_url":"https://github.com/PX4/Firmware/issues/1417","id":47407752,"number":1417,"title":"CPU intensity of uavcan driver","user":{"login":"hsteinhaus","id":3057137,"avatar_url":"https://avatars.githubusercontent.com/u/3057137?v=3","gravatar_id":"","url":"https://api.github.com/users/hsteinhaus","html_url":"https://github.com/hsteinhaus","followers_url":"https://api.github.com/users/hsteinhaus/followers","following_url":"https://api.github.com/users/hsteinhaus/following{/other_user}","gists_url":"https://api.github.com/users/hsteinhaus/gists{/gist_id}","starred_url":"https://api.github.com/users/hsteinhaus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hsteinhaus/subscriptions","organizations_url":"https://api.github.com/users/hsteinhaus/orgs","repos_url":"https://api.github.com/users/hsteinhaus/repos","events_url":"https://api.github.com/users/hsteinhaus/events{/privacy}","received_events_url":"https://api.github.com/users/hsteinhaus/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":{"login":"pavel-kirienko","id":3298404,"avatar_url":"https://avatars.githubusercontent.com/u/3298404?v=3","gravatar_id":"","url":"https://api.github.com/users/pavel-kirienko","html_url":"https://github.com/pavel-kirienko","followers_url":"https://api.github.com/users/pavel-kirienko/followers","following_url":"https://api.github.com/users/pavel-kirienko/following{/other_user}","gists_url":"https://api.github.com/users/pavel-kirienko/gists{/gist_id}","starred_url":"https://api.github.com/users/pavel-kirienko/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pavel-kirienko/subscriptions","organizations_url":"https://api.github.com/users/pavel-kirienko/orgs","repos_url":"https://api.github.com/users/pavel-kirienko/repos","events_url":"https://api.github.com/users/pavel-kirienko/events{/privacy}","received_events_url":"https://api.github.com/users/pavel-kirienko/received_events","type":"User","site_admin":false},"milestone":null,"comments":16,"created_at":"2014-10-31T15:39:16Z","updated_at":"2015-01-19T14:08:23Z","closed_at":"2015-01-19T14:08:23Z","body":"Without any peripherals connected, the uavcan process seems to consume at least 15% of available CPU power on Pixhawk (latest PX4/Firmware master with APM master build). This is rather nasty, as the uavcan process runs with a high priority. After connecting UAVCAN components, there is only a marginal increase (to about 20%). May be a fast spinning loop somewhere?"},"comment":{"url":"https://api.github.com/repos/PX4/Firmware/issues/comments/70496745","html_url":"https://github.com/PX4/Firmware/issues/1417#issuecomment-70496745","issue_url":"https://api.github.com/repos/PX4/Firmware/issues/1417","id":70496745,"user":{"login":"pavel-kirienko","id":3298404,"avatar_url":"https://avatars.githubusercontent.com/u/3298404?v=3","gravatar_id":"","url":"https://api.github.com/users/pavel-kirienko","html_url":"https://github.com/pavel-kirienko","followers_url":"https://api.github.com/users/pavel-kirienko/followers","following_url":"https://api.github.com/users/pavel-kirienko/following{/other_user}","gists_url":"https://api.github.com/users/pavel-kirienko/gists{/gist_id}","starred_url":"https://api.github.com/users/pavel-kirienko/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pavel-kirienko/subscriptions","organizations_url":"https://api.github.com/users/pavel-kirienko/orgs","repos_url":"https://api.github.com/users/pavel-kirienko/repos","events_url":"https://api.github.com/users/pavel-kirienko/events{/privacy}","received_events_url":"https://api.github.com/users/pavel-kirienko/received_events","type":"User","site_admin":false},"created_at":"2015-01-19T14:08:23Z","updated_at":"2015-01-19T14:08:23Z","body":"It has been confirmed that the root cause of the issue are excessive stack overflow checks and not the UAVCAN driver itself, so I'm closing it. Further discussion is in https://github.com/PX4/Firmware/pull/1660"}}