Hi,

using "-j 4"

         build.sh command: ./build.sh -j 4 -O ../obj -T ../tools -U -u
kernel=3DGENERIC
         build.sh started: Sun Nov 11 17:31:30 EET 2007
         build.sh ended:   Sun Nov 11 17:36:21 EET 2007

         4 mins 51 secs. Max server load was ~5.00

without "-j 4"

         build.sh command: ./build.sh -O ../obj -T ../tools -U -u
kernel=3DGENERIC
         build.sh started: Sun Nov 11 17:39:43 EET 2007
         build.sh ended:   Sun Nov 11 17:47:37 EET 2007

         7 mins 54 secs. Max server load was ~1.50


Ratio =3D 291 / 474 =3D 0,61
--------------------------------------------


I'm sorry to hear i can use only single core especially for compiling pkgsr=
c
softwares...=20


Regards,




Paul Goyette wrote:
>=20
> On Sun, 11 Nov 2007, Steven M. Bellovin wrote:
>=20
>> Compilation is indeed CPU-bound; however, unless you've taken special
>> steps, it's a single process at a time.  What you need to do is specify
>> '-j 2' when invoking build.sh, to run two processes simultaneously;
>> see /usr/src/BUILDING for details.
>=20
> In my experience, '-j 2' won't be enough to provide definitive results,=
=20
> since that seems to improve performance on uni-processor systems, too=20
> (though not by as much).  On my AMD X2 systems I run builds with it set=
=20
> to '-j 4' and that seems to give the most benefit.
>=20
> But even on uni-processors '-j 2' will improve things since it gives a=20
> chance for a second job to run on the (only) CPU while the other one is=
=20
> waiting for I/O completion.
>=20
> ----------------------------------------------------------------------
> |   Paul Goyette   | PGP DSS Key fingerprint: |  E-mail addresses:   |
> | Customer Service | FA29 0E3B 35AF E8AE 6651 |  paul@whooppee.com   |
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>=20
>=20


-----
 =20
 =20
 =20
----------------

Cem Kayali / Kayal=C4=B1
=20

--=20
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