{"action":"opened","issue":{"url":"https://api.github.com/repos/tmux/tmux/issues/609","repository_url":"https://api.github.com/repos/tmux/tmux","labels_url":"https://api.github.com/repos/tmux/tmux/issues/609/labels{/name}","comments_url":"https://api.github.com/repos/tmux/tmux/issues/609/comments","events_url":"https://api.github.com/repos/tmux/tmux/issues/609/events","html_url":"https://github.com/tmux/tmux/issues/609","id":185506207,"number":609,"title":"Unresponsive when displaying a lot of output in vertical splits","user":{"login":"cwatk","id":20347069,"avatar_url":"https://avatars.githubusercontent.com/u/20347069?v=3","gravatar_id":"","url":"https://api.github.com/users/cwatk","html_url":"https://github.com/cwatk","followers_url":"https://api.github.com/users/cwatk/followers","following_url":"https://api.github.com/users/cwatk/following{/other_user}","gists_url":"https://api.github.com/users/cwatk/gists{/gist_id}","starred_url":"https://api.github.com/users/cwatk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cwatk/subscriptions","organizations_url":"https://api.github.com/users/cwatk/orgs","repos_url":"https://api.github.com/users/cwatk/repos","events_url":"https://api.github.com/users/cwatk/events{/privacy}","received_events_url":"https://api.github.com/users/cwatk/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-10-26T20:49:08Z","updated_at":"2016-10-26T20:49:08Z","closed_at":null,"body":"I think this is a 2.3 regression. 2.2 seemed fine. tmux gets really unresponsive when a lot of output is being displayed in vertical splits. I'm on ubuntu 14.04 using gnome terminal. To repro, open a vertical split and run 'yes' in one of them. Switching panes is slow. Sending ctrl-c is slow."}}
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