Date: Tue, 15 Nov 2005 22:11:01 +0000
From: Steve Hodgson <steve@acidy.com>
To: Nicolas Blais <nb_root@videotron.ca>
Cc: freebsd-current@freebsd.org, Jens Schweikhardt <schweikh@schweikhardt.net>
Subject: Re: Using ccache for build{world, kernel}
Message-ID: <437A5CF5.4020203@acidy.com>
In-Reply-To: <200511151657.44716.nb_root@videotron.ca>
References: <200511141702.45491.nb_root@videotron.ca> <20051115183647.GA1783@schweikhardt.net> <20051115211418.GE1783@schweikhardt.net> <200511151657.44716.nb_root@videotron.ca>
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Nicolas Blais wrote:
>On November 15, 2005 04:14 pm, Jens Schweikhardt wrote:
>
>
>>Folks,
>>
>># Put this in /usr/ports/devel/ccache/files/patch-nohash-size-mtime and
>># reinstall the port. Then export CCACHE_NOHASH_SIZE_MTIME=y during your
>># makes for buildworld and buildkernel. This melts my buildworld time
>># from 2700s (real@~100%CPU) to under 1000s and buildkernel from 800s
>># to 250s, so you gain about a factor 3 for ab-initio builds. Sweet!
>>#
>>#
>># --- ccache.c.orig Mon Oct 31 17:38:21 2005
>># +++ ccache.c Mon Oct 31 17:52:31 2005
>># @@ -331,8 +331,10 @@
>># hash_string(str_basename(args->argv[0]));
>># }
>>#
>># - hash_int(st.st_size);
>># - hash_int(st.st_mtime);
>># + if (!getenv("CCACHE_NOHASH_SIZE_MTIME")) {
>># + hash_int(st.st_size);
>># + hash_int(st.st_mtime);
>># + }
>>[Rest of patch snipped ...]
>>
>>I just asked the devel/ccache maintainer to commit this patch and he
>>promptly did (Thanks Michael Johnson, aka ahze!). So you only need this
>>unless your ports tree is current as of now.
>>
>>Regards,
>>
>> Jens
>>
>>
>
>Thanks, very helpful!
>
>
>
So would the following form a better set of instructions for the port
(given the above patch is merged)?
1. don't follow the instructions about changing your PATH and setting
CCACHE_PATH in /etc/profile or cshrc
2. use the following in /etc/make.conf
.if !defined(NOCCACHE)
.if ${.CURDIR:M/usr/src*}
CC=CCACHE_NOHASH_SIZE_MTIME=y /usr/local/bin/ccache cc
CXX=CCACHE_NOHASH_SIZE_MTIME=y /usr/local/bin/ccache c++
.else
CC=/usr/local/bin/ccache cc
CXX=/usr/local/bin/ccache c++
.endif
.endif
(untested though)
Steve
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