Date: Mon, 20 Sep 2010 12:07:06 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Dmitry Krivenok <krivenok.dmitry@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: buildworld + ccache trouble Message-ID: <4C97324A.1080100@FreeBSD.org> In-Reply-To: <AANLkTi=wKc_6ppV83Yb68hRE_E8KO4a5YCzp50N6L64b@mail.gmail.com> References: <AANLkTimF79ZPE3MJeHQ=O1ismQCj916Q9kL23SBZOTL9@mail.gmail.com> <4C912926.6070409@FreeBSD.org> <AANLkTi=wKc_6ppV83Yb68hRE_E8KO4a5YCzp50N6L64b@mail.gmail.com>
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On 2010-09-20 10:43, Dmitry Krivenok wrote: > Your patch works fine for me, thanks! Note this patch is just a workaround for now, I'm still working on the proper solution. :) > However, I don't see any performance gain when using ccache: ... > cache miss 225341 ... > cache miss 362669 ... > Number of cache hits is very low. Since ccache depends on the results of preprocessing being exactly the same every time, there could be something in your setup and/or way of updating that changes them during each update. You can experiment with adding '-save-temps' to your compile flags, to see if any resulting .i files unexpectedly change after you update your source tree.
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