Re: Using ccache for build{world, kernel} (was: can't compile -CURRENT since 2 days ago)

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_at_~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
> # _at__at_ -331,8 +331,10 _at__at_
> #  		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!

-- 
FreeBSD 7.0-CURRENT #0: Tue Nov 15 06:21:56 EST 2005     
root_at_clk01a:/usr/obj/usr/src/sys/CLK01A 
PGP? : http://www.clkroot.net/security/nb_root.asc