Date: Wed, 19 Nov 1997 10:40:38 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Eivind Eklund <perhaps@yes.no> Cc: shimon@simon-shapiro.org, toor@dyson.iquest.net, sprice@hiwaay.net, smp@csn.net, current@FreeBSD.ORG, Shimon@i-connect.net Subject: Re: make world time???/ Message-ID: <199711191840.KAA01635@rah.star-gate.com> In-Reply-To: Your message of "Tue, 18 Nov 1997 14:48:15 %2B0100." <199711181348.OAA10979@bitbox.follo.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi,
I wish we could do sub-minute compiles 8)
make world started on Tue Nov 18 22:31:50 PST 1997
make world completed on Tue Nov 18 23:44:02 PST 1997
So it takes about 75 minutes to do a make world over here and
again 8)
I have a Pentium Pro 200Mhz , 48MB , 4.3 Seagate Cheetah (10000 rpms).
mount -u -o async,noatime /usr
cd /usr/src
make clean #if you already have a clean obj or no /usr/obj populated
#there is no need to do this step.
make world >build.log
/etc/make.conf modified flags:
NOCLEAN=true
CFLAGS= -O -pipe
kernel config file special flags :
options AHC_TAGENABLE
options AHC_SCBPAGING_ENABLE
options AHC_ALLOW_MEMIO
Without the above your world build time will probably be double if
you are doing your system build on your scsi disk drives.
I suspect that mounting a /usr/obj on a fast scsi or IDE drive is
not going to lower my performance figures. We need to experiment
to find out whats going on fast system builds.
Cheers,
Amancio
> >
> >
> > On 17-Nov-97 Eivind Eklund wrote:
> > >>
> > >>
> > >> Hi Amancio Hasty; On 17-Nov-97 you wrote:
> > >> > Hmm...
> > >> >
> > >> > I do a make world in about 75 minutes -- I just didn't do
> > >> > profiled
> > >> > libraries.
> > >>
> > >> Correct me if I am wrong, but the pupose here is not to finish make
> > >> world
> > >> in short time. I have seen sub-minute before :-)
> > >
> > > A 'make world' including what?
> >
> > Everything, but you start with empty /usr/obj.
>
> What kind of hardware are you running this at? What setup WRT async,
> noatime, MFS, etc? We want details! *grin*
>
> I just find sub-minute compiles of >100MB of source quite
> astonishing.
>
> Eivind.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199711191840.KAA01635>