{"action":"created","issue":{"url":"https://api.github.com/repos/MariaDB/server/issues/275","repository_url":"https://api.github.com/repos/MariaDB/server","labels_url":"https://api.github.com/repos/MariaDB/server/issues/275/labels{/name}","comments_url":"https://api.github.com/repos/MariaDB/server/issues/275/comments","events_url":"https://api.github.com/repos/MariaDB/server/issues/275/events","html_url":"https://github.com/MariaDB/server/pull/275","id":194895558,"number":275,"title":"MDEV-11075: Power - runtime detection of optimized instructions","user":{"login":"grooverdan","id":462287,"avatar_url":"https://avatars.githubusercontent.com/u/462287?v=3","gravatar_id":"","url":"https://api.github.com/users/grooverdan","html_url":"https://github.com/grooverdan","followers_url":"https://api.github.com/users/grooverdan/followers","following_url":"https://api.github.com/users/grooverdan/following{/other_user}","gists_url":"https://api.github.com/users/grooverdan/gists{/gist_id}","starred_url":"https://api.github.com/users/grooverdan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/grooverdan/subscriptions","organizations_url":"https://api.github.com/users/grooverdan/orgs","repos_url":"https://api.github.com/users/grooverdan/repos","events_url":"https://api.github.com/users/grooverdan/events{/privacy}","received_events_url":"https://api.github.com/users/grooverdan/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":7,"created_at":"2016-12-12T05:49:01Z","updated_at":"2016-12-12T22:18:39Z","closed_at":"2016-12-12T07:56:42Z","pull_request":{"url":"https://api.github.com/repos/MariaDB/server/pulls/275","html_url":"https://github.com/MariaDB/server/pull/275","diff_url":"https://github.com/MariaDB/server/pull/275.diff","patch_url":"https://github.com/MariaDB/server/pull/275.patch"},"body":"From https://github.com/MariaDB/server/pull/212#discussion_r91666636 @dr-m asked about runtime checks for Power.\r\n\r\nHere it is. They aren't totally needed as Power8 is the first processor supporting MariaDB. It adds one syscall on initialization so it isn't too much to add anyway. It does reduce one less thing to account for if someone wants to back port support to Power7 or earlier (MDEV-10984) however.\r\n\r\nI submit this under the MCA."},"comment":{"url":"https://api.github.com/repos/MariaDB/server/issues/comments/266571094","html_url":"https://github.com/MariaDB/server/pull/275#issuecomment-266571094","issue_url":"https://api.github.com/repos/MariaDB/server/issues/275","id":266571094,"user":{"login":"grooverdan","id":462287,"avatar_url":"https://avatars.githubusercontent.com/u/462287?v=3","gravatar_id":"","url":"https://api.github.com/users/grooverdan","html_url":"https://github.com/grooverdan","followers_url":"https://api.github.com/users/grooverdan/followers","following_url":"https://api.github.com/users/grooverdan/following{/other_user}","gists_url":"https://api.github.com/users/grooverdan/gists{/gist_id}","starred_url":"https://api.github.com/users/grooverdan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/grooverdan/subscriptions","organizations_url":"https://api.github.com/users/grooverdan/orgs","repos_url":"https://api.github.com/users/grooverdan/repos","events_url":"https://api.github.com/users/grooverdan/events{/privacy}","received_events_url":"https://api.github.com/users/grooverdan/received_events","type":"User","site_admin":false},"created_at":"2016-12-12T22:18:39Z","updated_at":"2016-12-12T22:18:39Z","body":"@svoj, @dr-m , its pretty harmless to have the check here. Overall its one syscall during initialization of innodb. Its also a reasonable practice for anyone that copies the code is some way. P7 and earlier isn't LE so its going to be excluded at compile time (though adding BE back into crc32 is possible - just know one has asked)."}}
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