Messages in this thread | | | Subject | Re: [Lse-tech] 7.52 second kernel compile | From | Daniel Egger <> | Date | 16 Mar 2002 19:57:32 +0100 |
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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
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