Date: Tue, 15 Nov 2005 16:06:36 -0800
From: Maxim Sobolev <sobomax@portaone.com>
To: Jens Schweikhardt <schweikh@schweikhardt.net>
Cc: Steve Hodgson <steve@acidy.com>, freebsd-current@FreeBSD.ORG, Nicolas Blais <nb_root@videotron.ca>
Subject: Re: Using ccache for build{world, kernel}
Message-ID: <437A780C.8070609@portaone.com>
In-Reply-To: <20051115211418.GE1783@schweikhardt.net>
References: <200511141702.45491.nb_root@videotron.ca> <200511150542.34910.nb_root@videotron.ca> <4379BCEB.6030806@acidy.com> <200511150611.31743.nb_root@videotron.ca> <20051115183647.GA1783@schweikhardt.net> <20051115211418.GE1783@schweikhardt.net>
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I have better patch which extends detection mechanism, so that along with size/mtime checksum of the compiler binary is stored as well. Since compiler binary linked from the same sources/objects will have the same checksum it allows ccache to be used OOB with buildworld. Do you have any interest in putting it into the port? http://www.portaone.com/~sobomax/ccache.buildworld -Maxim 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
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