{"action":"created","comment":{"url":"https://api.github.com/repos/dotnet/roslyn/pulls/comments/168114548","pull_request_review_id":96427390,"id":168114548,"diff_hunk":"@@ -13,6 +13,6 @@ namespace Microsoft.CodeAnalysis.TodoComments\n     /// </summary>\n     internal interface IRemoteTodoCommentService\n     {\n-        Task<IList<TodoComment>> GetTodoCommentsAsync(PinnedSolutionInfo solutionInfo, DocumentId documentId, IList<TodoCommentDescriptor> commentDescriptors, CancellationToken cancellationToken);\n+        Task<IList<TodoComment>> GetTodoCommentsAsync(DocumentId documentId, IList<TodoCommentDescriptor> commentDescriptors, CancellationToken cancellationToken);","path":"src/Features/Core/Portable/TodoComments/IRemoteTodoCommentService.cs","position":5,"original_position":5,"commit_id":"41189fa1326a97e7071f6d14968d0136fa2e8c8e","original_commit_id":"41189fa1326a97e7071f6d14968d0136fa2e8c8e","user":{"login":"heejaechang","id":1333179,"avatar_url":"https://avatars3.githubusercontent.com/u/1333179?v=4","gravatar_id":"","url":"https://api.github.com/users/heejaechang","html_url":"https://github.com/heejaechang","followers_url":"https://api.github.com/users/heejaechang/followers","following_url":"https://api.github.com/users/heejaechang/following{/other_user}","gists_url":"https://api.github.com/users/heejaechang/gists{/gist_id}","starred_url":"https://api.github.com/users/heejaechang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/heejaechang/subscriptions","organizations_url":"https://api.github.com/users/heejaechang/orgs","repos_url":"https://api.github.com/users/heejaechang/repos","events_url":"https://api.github.com/users/heejaechang/events{/privacy}","received_events_url":"https://api.github.com/users/heejaechang/received_events","type":"User","site_admin":false},"body":"same as above. we can put it back in if we decide to remove SessionWithSolution","created_at":"2018-02-14T09:21:06Z","updated_at":"2018-02-14T09:21:06Z","html_url":"https://github.com/dotnet/roslyn/pull/24751#discussion_r168114548","pull_request_url":"https://api.github.com/repos/dotnet/roslyn/pulls/24751","author_association":"CONTRIBUTOR","_links":{"self":{"href":"https://api.github.com/repos/dotnet/roslyn/pulls/comments/168114548"},"html":{"href":"https://github.com/dotnet/roslyn/pull/24751#discussion_r168114548"},"pull_request":{"href":"https://api.github.com/repos/dotnet/roslyn/pulls/24751"}},"in_reply_to_id":168012151},"pull_request":{"url":"https://api.github.com/repos/dotnet/roslyn/pulls/24751","id":168365475,"html_url":"https://github.com/dotnet/roslyn/pull/24751","diff_url":"https://github.com/dotnet/roslyn/pull/24751.diff","patch_url":"https://github.com/dotnet/roslyn/pull/24751.patch","issue_url":"https://api.github.com/repos/dotnet/roslyn/issues/24751","number":24751,"state":"open","locked":false,"title":"first refactoring to add 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on UX by this changes.\r\n\r\n### Bugs this fixes\r\n\r\nhttps://github.com/dotnet/roslyn/issues/24774\r\n\r\n### Workarounds, if any\r\n\r\nN/A\r\n\r\n### Risk\r\n\r\nI don't see any major risk. but for just in case, I added a reg key to turn it off.\r\n\r\n### Performance impact\r\n\r\nThis should bring down feature getting new connection to OOP from 1-15ms almost instantaneous assuming there is connection pooled.\r\n\r\n### Is this a regression from a previous update?\r\n\r\nNo\r\n\r\n### Root cause analysis\r\n\r\ngetting new connection to OOP usually takes about 1-15ms depends on how busy OOP is. but some features that need to create connection to OOP repeatedly thousands of times. that is too much. to workaround the issue, previously those features used KeepAliveConnection, basically create connection once and re-use same connection repeatedly. this gets the features same perf as the connection pool, but it makes OOP more complex for features to use since it needs to manage the connection. making it pool put the burden to the framework and features can consume OOP as a disposable manner. get a connection, use it and then throw it away. making it simpler for features to consume.\r\n\r\nthis should help other features when they move to OOP such as LUT.\r\n\r\n### How was the bug 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