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SubjectRe: kernel profiling in 2.1 ?
On Sun, 17 May 1998, Linus Torvalds wrote:

>
>
> On Sun, 17 May 1998, Thomas Bogendoerfer wrote:
> >
> > ok, I forgot to grep the .h, so I missed the x86 profile implementation.
> > But for the alpha there is (was) no profiling. I just adapted the x86
> > version, and it works.
>
> Ok.
>
> > Now to my problem with the sluggishness of my machine. I realized, that
> > when the kernel gets gzipped the mouse pointer under X freezes for as
> > long as gzip runs. So I did a gzip < /dev/zero > /dev/null and was really
> > surprised, when the whole machine stopped. I couldn't stop the process,
> > login via ethernet, nothing. I had to reset it.
>
> Ho humm, must be something wrong with the alpha timer code. Sounds like
> "need_resched" never gets set, which would certainly give you the
> behaviour you see.
>
> If that is true, then the machine should also hang from a simple
>
> main()
> {
> for (;;) ;
> }
>
> does it?

Wouldn't that mean that _every_ process hangs the box before terminating?

Uwe

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