On 21.01.2014 09:25, Issac Goldstand wrote:
On 21/01/2014 10:09, Andre Fischer wrote:
On 21.01.2014 08:57, Andre Fischer wrote:
Yesterday I was asked whether the use of precompiled headers had any
benefit on the compilation speed. I thought the answer would be yes
but I was not sure. So I did some tests. And the difference is
huge. I compiled sw/ with
make -sr -j8
on a i7 s2720 (2.2GHz), 8GB Ram laptop.
One important addition: precompiled headers are only supported on
Windows (my experiment took place on Windows7). I guess the other
systems are fast enough without precompiled headers.
Also, I'm not an expert, but I think that there's a difference for
release artifacts whether or not you compile with PCH. I know that the
chromium project, for example, recommends PCH for debug builds, but for
final releases, removing PCH is a big part of the optimizations...
Good to know. Do you have any pointers?
-Andre
Issac
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