Re: 2.3.7: where are the gains?
Matthew Wilcox (Matthew.Wilcox@genedata.com)
Wed, 23 Jun 1999 13:57:41 +0200
On Wed, Jun 23, 1999 at 11:34:12AM +1000, Richard Gooch wrote:
> But, DaveM said in another thread:
> > One decent example of this case is a kernel build, generating all
> > the .depend etc. files and then reading them back almost
> > immediately.
>
> 2.3.7:
> time make dep
> 21.950u 3.120s 0:26.90 93.1% 0+0k 0+0io 41875pf+0w
>
> 2.3.5:
> time make dep
> 22.240u 2.800s 0:25.90 96.6% 0+0k 0+0io 42128pf+0w
>
> So we see an increase of 11% in system time, when going from 2.3.5 to
> 2.3.7. But according to what DaveM said, this is a case which should
> definately have benefited.
`make dep' generates the .depend files. I don't think it uses them.
The reading them back almost instantly step is when you do the `make zImage'
which was shown by the figures I cruelly snipped.
--
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson
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