{"action":"created","issue":{"url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/349","repository_url":"https://api.github.com/repos/crossbeam-rs/crossbeam","labels_url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/349/labels{/name}","comments_url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/349/comments","events_url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/349/events","html_url":"https://github.com/crossbeam-rs/crossbeam/pull/349","id":425158755,"node_id":"MDExOlB1bGxSZXF1ZXN0MjY0MzIyMjcz","number":349,"title":"crossbeam-channel: Remove dependency on smallvec","user":{"login":"tuxether","id":41755388,"node_id":"MDQ6VXNlcjQxNzU1Mzg4","avatar_url":"https://avatars0.githubusercontent.com/u/41755388?v=4","gravatar_id":"","url":"https://api.github.com/users/tuxether","html_url":"https://github.com/tuxether","followers_url":"https://api.github.com/users/tuxether/followers","following_url":"https://api.github.com/users/tuxether/following{/other_user}","gists_url":"https://api.github.com/users/tuxether/gists{/gist_id}","starred_url":"https://api.github.com/users/tuxether/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tuxether/subscriptions","organizations_url":"https://api.github.com/users/tuxether/orgs","repos_url":"https://api.github.com/users/tuxether/repos","events_url":"https://api.github.com/users/tuxether/events{/privacy}","received_events_url":"https://api.github.com/users/tuxether/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2019-03-25T23:23:00Z","updated_at":"2019-04-03T09:15:59Z","closed_at":null,"author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/crossbeam-rs/crossbeam/pulls/349","html_url":"https://github.com/crossbeam-rs/crossbeam/pull/349","diff_url":"https://github.com/crossbeam-rs/crossbeam/pull/349.diff","patch_url":"https://github.com/crossbeam-rs/crossbeam/pull/349.patch"},"body":"This doesn't seem to affect benchmarks."},"comment":{"url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/comments/479408252","html_url":"https://github.com/crossbeam-rs/crossbeam/pull/349#issuecomment-479408252","issue_url":"https://api.github.com/repos/crossbeam-rs/crossbeam/issues/349","id":479408252,"node_id":"MDEyOklzc3VlQ29tbWVudDQ3OTQwODI1Mg==","user":{"login":"stjepang","id":1303843,"node_id":"MDQ6VXNlcjEzMDM4NDM=","avatar_url":"https://avatars2.githubusercontent.com/u/1303843?v=4","gravatar_id":"","url":"https://api.github.com/users/stjepang","html_url":"https://github.com/stjepang","followers_url":"https://api.github.com/users/stjepang/followers","following_url":"https://api.github.com/users/stjepang/following{/other_user}","gists_url":"https://api.github.com/users/stjepang/gists{/gist_id}","starred_url":"https://api.github.com/users/stjepang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stjepang/subscriptions","organizations_url":"https://api.github.com/users/stjepang/orgs","repos_url":"https://api.github.com/users/stjepang/repos","events_url":"https://api.github.com/users/stjepang/events{/privacy}","received_events_url":"https://api.github.com/users/stjepang/received_events","type":"User","site_admin":false},"created_at":"2019-04-03T09:15:59Z","updated_at":"2019-04-03T09:15:59Z","author_association":"MEMBER","body":"On my machine, `cargo run --release --bin crossbeam-channel` yields this (showing only the `*select*` tests):\r\n\r\n```\r\nbounded_select_both       Rust crossbeam-channel   0.479 sec\r\nbounded_select_rx         Rust crossbeam-channel   0.486 sec\r\nunbounded_select_both     Rust crossbeam-channel   0.432 sec\r\nunbounded_select_rx       Rust crossbeam-channel   0.461 sec\r\n```\r\n\r\nAfter replacing `SmallVec` with `Vec` I get:\r\n\r\n```\r\nbounded_select_both       Rust crossbeam-channel   0.587 sec\r\nbounded_select_rx         Rust crossbeam-channel   0.581 sec\r\nunbounded_select_both     Rust crossbeam-channel   0.545 sec\r\nunbounded_select_rx       Rust crossbeam-channel   0.550 sec\r\n```\r\n\r\nThere seems to be a consistent slowdown of 15-20%.\r\n\r\nWhat benchmarks did you try?"}}
{"actor":{"display_login":"stjepang"}}