buildworld + ccache trouble
Dimitry Andric
dim at FreeBSD.org
Mon Sep 20 10:07:00 UTC 2010
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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