{"action":"created","issue":{"url":"https://api.github.com/repos/rust-lang/rust/issues/37267","repository_url":"https://api.github.com/repos/rust-lang/rust","labels_url":"https://api.github.com/repos/rust-lang/rust/issues/37267/labels{/name}","comments_url":"https://api.github.com/repos/rust-lang/rust/issues/37267/comments","events_url":"https://api.github.com/repos/rust-lang/rust/issues/37267/events","html_url":"https://github.com/rust-lang/rust/pull/37267","id":183851990,"number":37267,"title":"Optimize `write_metadata`.","user":{"login":"nnethercote","id":1940286,"avatar_url":"https://avatars.githubusercontent.com/u/1940286?v=3","gravatar_id":"","url":"https://api.github.com/users/nnethercote","html_url":"https://github.com/nnethercote","followers_url":"https://api.github.com/users/nnethercote/followers","following_url":"https://api.github.com/users/nnethercote/following{/other_user}","gists_url":"https://api.github.com/users/nnethercote/gists{/gist_id}","starred_url":"https://api.github.com/users/nnethercote/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nnethercote/subscriptions","organizations_url":"https://api.github.com/users/nnethercote/orgs","repos_url":"https://api.github.com/users/nnethercote/repos","events_url":"https://api.github.com/users/nnethercote/events{/privacy}","received_events_url":"https://api.github.com/users/nnethercote/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-10-19T02:40:42Z","updated_at":"2016-10-19T02:44:16Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/rust-lang/rust/pulls/37267","html_url":"https://github.com/rust-lang/rust/pull/37267","diff_url":"https://github.com/rust-lang/rust/pull/37267.diff","patch_url":"https://github.com/rust-lang/rust/pull/37267.patch"},"body":"`write_metadata` currently generates metadata unnecessarily in some\r\ncases, and also compresses it unnecessarily in some cases. This commit\r\nfixes that. It speeds up three of the rustc-benchmarks by 1--4%.\r\n\r\nr? @eddby, who deserves much of the credit because he (a) identified the problem from the profile data I provided in #37086, and (b) explained to me how to fix it. Thank you, @eddby!"},"comment":{"url":"https://api.github.com/repos/rust-lang/rust/issues/comments/254695700","html_url":"https://github.com/rust-lang/rust/pull/37267#issuecomment-254695700","issue_url":"https://api.github.com/repos/rust-lang/rust/issues/37267","id":254695700,"user":{"login":"nnethercote","id":1940286,"avatar_url":"https://avatars.githubusercontent.com/u/1940286?v=3","gravatar_id":"","url":"https://api.github.com/users/nnethercote","html_url":"https://github.com/nnethercote","followers_url":"https://api.github.com/users/nnethercote/followers","following_url":"https://api.github.com/users/nnethercote/following{/other_user}","gists_url":"https://api.github.com/users/nnethercote/gists{/gist_id}","starred_url":"https://api.github.com/users/nnethercote/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nnethercote/subscriptions","organizations_url":"https://api.github.com/users/nnethercote/orgs","repos_url":"https://api.github.com/users/nnethercote/repos","events_url":"https://api.github.com/users/nnethercote/events{/privacy}","received_events_url":"https://api.github.com/users/nnethercote/received_events","type":"User","site_admin":false},"created_at":"2016-10-19T02:44:16Z","updated_at":"2016-10-19T02:44:16Z","body":"Make that @eddyb, not @eddby..."}}
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