{"action":"created","issue":{"url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1658","repository_url":"https://api.github.com/repos/AutoMapper/AutoMapper","labels_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1658/labels{/name}","comments_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1658/comments","events_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1658/events","html_url":"https://github.com/AutoMapper/AutoMapper/issues/1658","id":174030784,"number":1658,"title":"Slow performance on debug","user":{"login":"jparaya","id":5898487,"avatar_url":"https://avatars.githubusercontent.com/u/5898487?v=3","gravatar_id":"","url":"https://api.github.com/users/jparaya","html_url":"https://github.com/jparaya","followers_url":"https://api.github.com/users/jparaya/followers","following_url":"https://api.github.com/users/jparaya/following{/other_user}","gists_url":"https://api.github.com/users/jparaya/gists{/gist_id}","starred_url":"https://api.github.com/users/jparaya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jparaya/subscriptions","organizations_url":"https://api.github.com/users/jparaya/orgs","repos_url":"https://api.github.com/users/jparaya/repos","events_url":"https://api.github.com/users/jparaya/events{/privacy}","received_events_url":"https://api.github.com/users/jparaya/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":6,"created_at":"2016-08-30T14:14:47Z","updated_at":"2016-08-31T13:24:17Z","closed_at":null,"body":"Greetings,\r\n\r\nI'm using AutoMapper 4.0.2 (our project is conditioned to run on .Net 4.0), installed from nuget, on a Web MVC 4 application. This application maps from Entity to Model objects.\r\n\r\nWe have noticed the mapper takes a lot of time to map when we are debugging. For example, for 1000 Entities on memory, the mapper can take about 2.5 seconds on release mode, but if we debug, it takes almost 40 seconds.\r\n\r\nOur big problem is that we need to debug some codes, and the mapper takes too much time to finish. Is there any chance to accelerate the mapping on debugging, like disabling symbols? \r\n\r\nThanks in advance"},"comment":{"url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/comments/243762408","html_url":"https://github.com/AutoMapper/AutoMapper/issues/1658#issuecomment-243762408","issue_url":"https://api.github.com/repos/AutoMapper/AutoMapper/issues/1658","id":243762408,"user":{"login":"lbargaoanu","id":4517428,"avatar_url":"https://avatars.githubusercontent.com/u/4517428?v=3","gravatar_id":"","url":"https://api.github.com/users/lbargaoanu","html_url":"https://github.com/lbargaoanu","followers_url":"https://api.github.com/users/lbargaoanu/followers","following_url":"https://api.github.com/users/lbargaoanu/following{/other_user}","gists_url":"https://api.github.com/users/lbargaoanu/gists{/gist_id}","starred_url":"https://api.github.com/users/lbargaoanu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lbargaoanu/subscriptions","organizations_url":"https://api.github.com/users/lbargaoanu/orgs","repos_url":"https://api.github.com/users/lbargaoanu/repos","events_url":"https://api.github.com/users/lbargaoanu/events{/privacy}","received_events_url":"https://api.github.com/users/lbargaoanu/received_events","type":"User","site_admin":false},"created_at":"2016-08-31T13:24:16Z","updated_at":"2016-08-31T13:24:16Z","body":"That check was implemented in the new version. Throwing exceptions is always expensive, it's just even more so during debugging. "}}
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