{"action":"created","issue":{"url":"https://api.github.com/repos/PCSX2/pcsx2/issues/1391","repository_url":"https://api.github.com/repos/PCSX2/pcsx2","labels_url":"https://api.github.com/repos/PCSX2/pcsx2/issues/1391/labels{/name}","comments_url":"https://api.github.com/repos/PCSX2/pcsx2/issues/1391/comments","events_url":"https://api.github.com/repos/PCSX2/pcsx2/issues/1391/events","html_url":"https://github.com/PCSX2/pcsx2/issues/1391","id":158626661,"number":1391,"title":"GSdx software mode, horrible hitching (windows)","user":{"login":"wareya","id":585488,"avatar_url":"https://avatars.githubusercontent.com/u/585488?v=3","gravatar_id":"","url":"https://api.github.com/users/wareya","html_url":"https://github.com/wareya","followers_url":"https://api.github.com/users/wareya/followers","following_url":"https://api.github.com/users/wareya/following{/other_user}","gists_url":"https://api.github.com/users/wareya/gists{/gist_id}","starred_url":"https://api.github.com/users/wareya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wareya/subscriptions","organizations_url":"https://api.github.com/users/wareya/orgs","repos_url":"https://api.github.com/users/wareya/repos","events_url":"https://api.github.com/users/wareya/events{/privacy}","received_events_url":"https://api.github.com/users/wareya/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/PCSX2/pcsx2/labels/Duplicate","name":"Duplicate","color":"cccccc"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-06-06T08:38:38Z","updated_at":"2016-06-06T09:22:15Z","closed_at":"2016-06-06T09:21:04Z","body":"When I try to run in software mode with the threads setting set to more than 1, I experience extremely terrible hitches and stuttering that bring performance down to worse than 10% realtime in certain scenes, in particular the Georama view in Dark Cloud 1. This seems to go back to the end of last year.\r\n\r\nI downloaded random ancient buildbot builds in no particular order and the first one I found at random that doesn't have the problem is from 2015-08-20 (per file modification date). A build from 2015-11-21 (per file modification date) includes the horrible hitching.\r\n\r\nI continued to bisect and the first build on orphis that contains the breakage on my system is \"1416-gb6f78d8\", which was built 2015-11-09 4:23 my time (currently EDT). The former build is \"1415-g9bb990e\", which was built 2015-11-08 3:36 my time (currently EDT).\r\n\r\nWorking as of: https://github.com/PCSX2/pcsx2/commit/9bb990e\r\nBroken as of: https://github.com/PCSX2/pcsx2/commit/b6f78d8\r\n\r\nTo note, if necessary, the next build (1417) after the first broken one has a commit hash of 44d8930; yes, they're both broken for the sake of sanity. The former build to the working build(1415) is 1408 and has a commit hash of 8ed56bd, and is indeed also working.\r\n\r\n...b6f78d8 is a very innocuous commit, so something fishy is going on. Maybe the buildbot started compiling with different settings or it got the labels wrong. If necessary I could start compiling old stages of development myself but I want to get this up first in case someone knows what's going on.\r\n\r\nThe horribleness and randomness of the hitching increases with thread count.\r\n\r\nRunning on an i5-6600, skylake, no dedicated GPU, applies to both DX9 and DX11 and can't check OGL because the plugin doesn't boot with it selected. Can't use hardware mode as a workaround because the iGPU is not quite fast enough for all scenes; software mode and 9bb990e are faster. Windows. Up-to-date graphics drivers."},"comment":{"url":"https://api.github.com/repos/PCSX2/pcsx2/issues/comments/223908767","html_url":"https://github.com/PCSX2/pcsx2/issues/1391#issuecomment-223908767","issue_url":"https://api.github.com/repos/PCSX2/pcsx2/issues/1391","id":223908767,"user":{"login":"wareya","id":585488,"avatar_url":"https://avatars.githubusercontent.com/u/585488?v=3","gravatar_id":"","url":"https://api.github.com/users/wareya","html_url":"https://github.com/wareya","followers_url":"https://api.github.com/users/wareya/followers","following_url":"https://api.github.com/users/wareya/following{/other_user}","gists_url":"https://api.github.com/users/wareya/gists{/gist_id}","starred_url":"https://api.github.com/users/wareya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wareya/subscriptions","organizations_url":"https://api.github.com/users/wareya/orgs","repos_url":"https://api.github.com/users/wareya/repos","events_url":"https://api.github.com/users/wareya/events{/privacy}","received_events_url":"https://api.github.com/users/wareya/received_events","type":"User","site_admin":false},"created_at":"2016-06-06T09:22:15Z","updated_at":"2016-06-06T09:22:15Z","body":"Thank you!"}}
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