{"action":"created","issue":{"url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/355","labels_url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/355/labels{/name}","comments_url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/355/comments","events_url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/355/events","html_url":"https://github.com/official-stockfish/Stockfish/pull/355","id":80282125,"number":355,"title":"Optimize TTEntry::save()","user":{"login":"mstembera","id":5421953,"avatar_url":"https://avatars.githubusercontent.com/u/5421953?v=3","gravatar_id":"","url":"https://api.github.com/users/mstembera","html_url":"https://github.com/mstembera","followers_url":"https://api.github.com/users/mstembera/followers","following_url":"https://api.github.com/users/mstembera/following{/other_user}","gists_url":"https://api.github.com/users/mstembera/gists{/gist_id}","starred_url":"https://api.github.com/users/mstembera/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mstembera/subscriptions","organizations_url":"https://api.github.com/users/mstembera/orgs","repos_url":"https://api.github.com/users/mstembera/repos","events_url":"https://api.github.com/users/mstembera/events{/privacy}","received_events_url":"https://api.github.com/users/mstembera/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-05-24T21:54:06Z","updated_at":"2015-05-26T23:33:51Z","closed_at":"2015-05-26T23:33:51Z","pull_request":{"url":"https://api.github.com/repos/official-stockfish/Stockfish/pulls/355","html_url":"https://github.com/official-stockfish/Stockfish/pull/355","diff_url":"https://github.com/official-stockfish/Stockfish/pull/355.diff","patch_url":"https://github.com/official-stockfish/Stockfish/pull/355.patch"},"body":"Since (k >> 48) != key16 always gets computed later anyway move it first so sometimes we can skip testing m.\r\n\r\ngcc 4.9.2\r\nmake build ARCH=x86-64-modern COMP=mingw\r\n```\r\nResults for 20 tests for each version:\r\n\r\n            Base      Test      Diff      \r\n    Mean    876165    882852    -6687     \r\n    StDev   314228    314813    2942      \r\n\r\np-value: 0.988\r\n```\r\n.75% faster\r\n\r\nmake profile-build ARCH=x86-64-modern COMP=mingw\r\n```\r\nResults for 20 tests for each version:\r\n\r\n            Base      Test      Diff      \r\n    Mean    1019161   1023413   -4252     \r\n    StDev   306245    306768    2923      \r\n\r\np-value: 0.927\r\n```\r\n.4% faster\r\n\r\nCan someone please verify?\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/comments/105697634","html_url":"https://github.com/official-stockfish/Stockfish/pull/355#issuecomment-105697634","issue_url":"https://api.github.com/repos/official-stockfish/Stockfish/issues/355","id":105697634,"user":{"login":"mstembera","id":5421953,"avatar_url":"https://avatars.githubusercontent.com/u/5421953?v=3","gravatar_id":"","url":"https://api.github.com/users/mstembera","html_url":"https://github.com/mstembera","followers_url":"https://api.github.com/users/mstembera/followers","following_url":"https://api.github.com/users/mstembera/following{/other_user}","gists_url":"https://api.github.com/users/mstembera/gists{/gist_id}","starred_url":"https://api.github.com/users/mstembera/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mstembera/subscriptions","organizations_url":"https://api.github.com/users/mstembera/orgs","repos_url":"https://api.github.com/users/mstembera/repos","events_url":"https://api.github.com/users/mstembera/events{/privacy}","received_events_url":"https://api.github.com/users/mstembera/received_events","type":"User","site_admin":false},"created_at":"2015-05-26T23:33:51Z","updated_at":"2015-05-26T23:33:51Z","body":"Closing this pull request since it couldn't be shown to be consistently faster.  Thanks to Jörg and Lucas for testing!"}}