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Re: Build times of hurd and glibc for different versions of gnumach, hur


From: Svante Signell
Subject: Re: Build times of hurd and glibc for different versions of gnumach, hurd and glibc
Date: Sat, 16 Apr 2016 18:29:55 +0200

On Thu, 2016-04-14 at 13:16 +0200, Svante Signell wrote:
> Hello,
> 
> In order to track down why the latest releases of gnumach, hurd and
> glibc have
> become so much slower building packages, I did a few (non-scientific) 
> build
> tests, as shown in the attached pdf file.(I have also put it on my
> web page on
> Darnassus.)
> 
> From the build times in that file, one can conclude that the largest
> cause of
> the slowness seems to be the gnumach version. Second in importance
> seems to be
> the hurd version. glibc version does not affect the results much.
> Further
> investigations are of course needed to track down where the cause is,
> and which
> commits affects the results most.
> 
> Thanks!

Attached is an updated pdf file with builds of glibc for three
different versions of gnumach, and running qemu with option cache=none.
The latest kernel is affected most by this change. Any other build test
you want me to make?

Thanks!

Attachment: build-times.pdf
Description: Adobe PDF document


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