{"action":"created","issue":{"url":"https://api.github.com/repos/Shopify/sarama/issues/527","labels_url":"https://api.github.com/repos/Shopify/sarama/issues/527/labels{/name}","comments_url":"https://api.github.com/repos/Shopify/sarama/issues/527/comments","events_url":"https://api.github.com/repos/Shopify/sarama/issues/527/events","html_url":"https://github.com/Shopify/sarama/pull/527","id":104062415,"number":527,"title":"Use an optimized crc32 library which is faster","user":{"login":"eapache","id":1706826,"avatar_url":"https://avatars.githubusercontent.com/u/1706826?v=3","gravatar_id":"","url":"https://api.github.com/users/eapache","html_url":"https://github.com/eapache","followers_url":"https://api.github.com/users/eapache/followers","following_url":"https://api.github.com/users/eapache/following{/other_user}","gists_url":"https://api.github.com/users/eapache/gists{/gist_id}","starred_url":"https://api.github.com/users/eapache/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eapache/subscriptions","organizations_url":"https://api.github.com/users/eapache/orgs","repos_url":"https://api.github.com/users/eapache/repos","events_url":"https://api.github.com/users/eapache/events{/privacy}","received_events_url":"https://api.github.com/users/eapache/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":7,"created_at":"2015-08-31T14:19:36Z","updated_at":"2015-08-31T16:37:11Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/Shopify/sarama/pulls/527","html_url":"https://github.com/Shopify/sarama/pull/527","diff_url":"https://github.com/Shopify/sarama/pull/527.diff","patch_url":"https://github.com/Shopify/sarama/pull/527.patch"},"body":"Needs testing to ensure that this is actually faster (and is still correct), but may solve #255."},"comment":{"url":"https://api.github.com/repos/Shopify/sarama/issues/comments/136423593","html_url":"https://github.com/Shopify/sarama/pull/527#issuecomment-136423593","issue_url":"https://api.github.com/repos/Shopify/sarama/issues/527","id":136423593,"user":{"login":"eapache","id":1706826,"avatar_url":"https://avatars.githubusercontent.com/u/1706826?v=3","gravatar_id":"","url":"https://api.github.com/users/eapache","html_url":"https://github.com/eapache","followers_url":"https://api.github.com/users/eapache/followers","following_url":"https://api.github.com/users/eapache/following{/other_user}","gists_url":"https://api.github.com/users/eapache/gists{/gist_id}","starred_url":"https://api.github.com/users/eapache/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/eapache/subscriptions","organizations_url":"https://api.github.com/users/eapache/orgs","repos_url":"https://api.github.com/users/eapache/repos","events_url":"https://api.github.com/users/eapache/events{/privacy}","received_events_url":"https://api.github.com/users/eapache/received_events","type":"User","site_admin":false},"created_at":"2015-08-31T16:37:11Z","updated_at":"2015-08-31T16:37:11Z","body":"Short version is: this basically removes CRC32 from the profile entirely, it drops from 15-20% of the CPU time in my test to a statistically insignificant number of samples. Sold.\r\n\r\nAlso, the upstream author has submitted this to Go, so there's a very good chance Go 1.6 will have this optimization in the stdlib."}}