lkml.org 
[lkml]   [2002]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [Lse-tech] 7.52 second kernel compile
From
Date
Am Sam, 2002-03-16 um 18.37 schrieb Martin J. Bligh:

> BTW - the other tip that was in the big book of whizzy kernel
> compiles was to set gcc to use -pipe ... you might want to try
> that.

Interestingly -pipe doesn't give any measurable performance increases or
even leads to a minor decrease in compile speed in my latest tests on
bigger projects like the linux kernel or GIMP. I suspect that's because
of the caching nature of nowadays systems: the temporary products are
cached in memory and likely not to never end on a drive because they're
read and removed before the point the filesystem decides to physically
write the data.

I also benchmarked tmpfs mounts and it demonstrated - to my surprise -
small advantages slightly above the noise range; I suspect this is due
to the way it handles files in memory.

--
Servus,
Daniel

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:25    [W:0.116 / U:0.788 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site