From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pb0-f47.google.com ([209.85.160.47]) by linuxtogo.org with esmtp (Exim 4.72) (envelope-from ) id 1SGPbR-0005jX-4M for openembedded-core@lists.openembedded.org; Sat, 07 Apr 2012 08:58:29 +0200 Received: by pbcum15 with SMTP id um15so2679476pbc.6 for ; Fri, 06 Apr 2012 23:49:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :x-enigmail-version:content-type:content-transfer-encoding; bh=uk0hoOSWkKZx/evY0gOroIROJMZ3Gc0gqa320k6u5Fk=; b=Csc6o6feZ4dvFWG7884G6hK6Dae5x25gGeKhqK05R9MvFEIW3DIauc1ASVAUzKxoGt fSV1EXNtgnL3F1iZFsVLc3PxOIhTUKSPN7ZRc+pW4FNU3yN7TCqq98BOCBd0rvGkT3/q sJMShTN1J90OKqC+GHXyGvxnxNmqLXtCjeE3uqgM+2uIYLWaH5a9EFP1tJ7aSGnH8q7C wY17lBbApWqfWWCLDeqipC6faWehqR+sMfa7+Ni7b/KVEKhyB2dAlYr6uhvzlGpy8Mcs HoDvnVwk/pqICCnRPXyCVlBnLFA4JPVTry8eoKI8ySMp/amwerOPrDrw/Svy29r6MOQk hUJg== Received: by 10.68.216.234 with SMTP id ot10mr1361616pbc.107.1333781354670; Fri, 06 Apr 2012 23:49:14 -0700 (PDT) Received: from [192.168.1.79] (99-57-140-209.lightspeed.sntcca.sbcglobal.net. [99.57.140.209]) by mx.google.com with ESMTPS id v9sm8415439pbn.17.2012.04.06.23.49.12 (version=SSLv3 cipher=OTHER); Fri, 06 Apr 2012 23:49:13 -0700 (PDT) Message-ID: <4F7FE367.1020509@gmail.com> Date: Fri, 06 Apr 2012 23:49:11 -0700 From: Khem Raj User-Agent: Mozilla/5.0 (X11; Linux i686; rv:11.0) Gecko/20120402 Thunderbird/11.0.1 MIME-Version: 1.0 To: Patches and discussions about the oe-core layer X-Enigmail-Version: 1.4 Subject: Adding --enable-checking=release to gcc X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: Patches and discussions about the oe-core layer List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Apr 2012 06:58:29 -0000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I added the above option to gcc and did core-image-sato build to see if I would gain some compile time performance. http://git.openembedded.org/openembedded-core-contrib/commit/?h=kraj/gcc-4.7&id=2d7004457a23c6c952f81e55b8ab7e3cc69bd905 The results were not very astounding but I do see some improvement original real 102m50.131s user 437m7.463s sys 67m29.237s with --enable-checking=release real 102m19.762s user 439m41.749s sys 66m10.376s This was using shared state for native packages but cross packages were all built too. overall gain in pecents will be more since we would then subtract the time it took to compile the cross tools. This patch is for gcc-4.7 recipes as of now. Thanks - -Khem -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk9/42cACgkQuwUzVZGdMxS41wCfZb8YPP12HeWY35FGZINTc/+z Ar0AniVM2osnwuPJFpgO2P/QrurW6HHl =HzWp -----END PGP SIGNATURE-----