{"action":"created","issue":{"url":"https://api.github.com/repos/bitcoin/secp256k1/issues/271","labels_url":"https://api.github.com/repos/bitcoin/secp256k1/issues/271/labels{/name}","comments_url":"https://api.github.com/repos/bitcoin/secp256k1/issues/271/comments","events_url":"https://api.github.com/repos/bitcoin/secp256k1/issues/271/events","html_url":"https://github.com/bitcoin/secp256k1/pull/271","id":94432733,"number":271,"title":"Improve performance of _ecmult_wnaf","user":{"login":"peterdettman","id":3423981,"avatar_url":"https://avatars.githubusercontent.com/u/3423981?v=3","gravatar_id":"","url":"https://api.github.com/users/peterdettman","html_url":"https://github.com/peterdettman","followers_url":"https://api.github.com/users/peterdettman/followers","following_url":"https://api.github.com/users/peterdettman/following{/other_user}","gists_url":"https://api.github.com/users/peterdettman/gists{/gist_id}","starred_url":"https://api.github.com/users/peterdettman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/peterdettman/subscriptions","organizations_url":"https://api.github.com/users/peterdettman/orgs","repos_url":"https://api.github.com/users/peterdettman/repos","events_url":"https://api.github.com/users/peterdettman/events{/privacy}","received_events_url":"https://api.github.com/users/peterdettman/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2015-07-11T03:54:31Z","updated_at":"2015-07-13T12:51:11Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/bitcoin/secp256k1/pulls/271","html_url":"https://github.com/bitcoin/secp256k1/pull/271","diff_url":"https://github.com/bitcoin/secp256k1/pull/271.diff","patch_url":"https://github.com/bitcoin/secp256k1/pull/271.patch"},"body":"- Track carry explicitly instead of adding to scalar\r\n- Branch-free code for carry calculations\r\n\r\nGives ~0.6% improvement for bench_verify (64bit, endo=yes)"},"comment":{"url":"https://api.github.com/repos/bitcoin/secp256k1/issues/comments/120918603","html_url":"https://github.com/bitcoin/secp256k1/pull/271#issuecomment-120918603","issue_url":"https://api.github.com/repos/bitcoin/secp256k1/issues/271","id":120918603,"user":{"login":"peterdettman","id":3423981,"avatar_url":"https://avatars.githubusercontent.com/u/3423981?v=3","gravatar_id":"","url":"https://api.github.com/users/peterdettman","html_url":"https://github.com/peterdettman","followers_url":"https://api.github.com/users/peterdettman/followers","following_url":"https://api.github.com/users/peterdettman/following{/other_user}","gists_url":"https://api.github.com/users/peterdettman/gists{/gist_id}","starred_url":"https://api.github.com/users/peterdettman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/peterdettman/subscriptions","organizations_url":"https://api.github.com/users/peterdettman/orgs","repos_url":"https://api.github.com/users/peterdettman/repos","events_url":"https://api.github.com/users/peterdettman/events{/privacy}","received_events_url":"https://api.github.com/users/peterdettman/received_events","type":"User","site_admin":false},"created_at":"2015-07-13T12:51:11Z","updated_at":"2015-07-13T12:51:11Z","body":"I reconsidered the \"external initialisation of wnaf\" change (rebased out that version) and changed to a memset inside _ecmult_wnaf. Still ~2% improvement."}}