{"action":"created","issue":{"url":"https://api.github.com/repos/JuliaLang/julia/issues/29078","repository_url":"https://api.github.com/repos/JuliaLang/julia","labels_url":"https://api.github.com/repos/JuliaLang/julia/issues/29078/labels{/name}","comments_url":"https://api.github.com/repos/JuliaLang/julia/issues/29078/comments","events_url":"https://api.github.com/repos/JuliaLang/julia/issues/29078/events","html_url":"https://github.com/JuliaLang/julia/issues/29078","id":357964238,"node_id":"MDU6SXNzdWUzNTc5NjQyMzg=","number":29078,"title":"Performance problems of Julia","user":{"login":"AlphaFase","id":13626487,"node_id":"MDQ6VXNlcjEzNjI2NDg3","avatar_url":"https://avatars2.githubusercontent.com/u/13626487?v=4","gravatar_id":"","url":"https://api.github.com/users/AlphaFase","html_url":"https://github.com/AlphaFase","followers_url":"https://api.github.com/users/AlphaFase/followers","following_url":"https://api.github.com/users/AlphaFase/following{/other_user}","gists_url":"https://api.github.com/users/AlphaFase/gists{/gist_id}","starred_url":"https://api.github.com/users/AlphaFase/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AlphaFase/subscriptions","organizations_url":"https://api.github.com/users/AlphaFase/orgs","repos_url":"https://api.github.com/users/AlphaFase/repos","events_url":"https://api.github.com/users/AlphaFase/events{/privacy}","received_events_url":"https://api.github.com/users/AlphaFase/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2018-09-07T08:11:43Z","updated_at":"2018-09-07T17:58:19Z","closed_at":"2018-09-07T08:41:57Z","author_association":"NONE","body":"[project: test](https://github.com/AlphaFase/julia-libs/tree/master/%E6%80%A7%E8%83%BD%E5%AF%B9%E6%AF%94/jl_py)\r\npython:   6 sec\r\njulia：     11 sec\r\n\r\nDynamic array performance is not as good as python, only using single core CPU. Does Julia also have a GIL lock?\r\n\r\nIs there a performance analysis tool similar to Python cProfile?\r\nJulia's performance analysis tool is either inaccessible or inhumanized.\r\n"},"comment":{"url":"https://api.github.com/repos/JuliaLang/julia/issues/comments/419518789","html_url":"https://github.com/JuliaLang/julia/issues/29078#issuecomment-419518789","issue_url":"https://api.github.com/repos/JuliaLang/julia/issues/29078","id":419518789,"node_id":"MDEyOklzc3VlQ29tbWVudDQxOTUxODc4OQ==","user":{"login":"JeffBezanson","id":744556,"node_id":"MDQ6VXNlcjc0NDU1Ng==","avatar_url":"https://avatars0.githubusercontent.com/u/744556?v=4","gravatar_id":"","url":"https://api.github.com/users/JeffBezanson","html_url":"https://github.com/JeffBezanson","followers_url":"https://api.github.com/users/JeffBezanson/followers","following_url":"https://api.github.com/users/JeffBezanson/following{/other_user}","gists_url":"https://api.github.com/users/JeffBezanson/gists{/gist_id}","starred_url":"https://api.github.com/users/JeffBezanson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/JeffBezanson/subscriptions","organizations_url":"https://api.github.com/users/JeffBezanson/orgs","repos_url":"https://api.github.com/users/JeffBezanson/repos","events_url":"https://api.github.com/users/JeffBezanson/events{/privacy}","received_events_url":"https://api.github.com/users/JeffBezanson/received_events","type":"User","site_admin":false},"created_at":"2018-09-07T17:58:19Z","updated_at":"2018-09-07T17:58:19Z","author_association":"MEMBER","body":"Destructuring does not use splatting. I'm also pretty sure `for (a, b) in c` is optimized well now."}}
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