Re: Kernel SCM saga..

H. Peter Anvin
2005-04-08T05:15:24Z

Followup to: <20050408050458.GB8720@taniwha.stupidest.org>
By author: Chris Wedgwood <cw@f00f.org>
In newsgroup: linux.dev.kernel
>
> On Thu, Apr 07, 2005 at 09:42:04PM -0700, Linus Torvalds wrote:
>
> > Yes. The silly thing is, at least in my local tests it doesn't
> > actually seem to be _doing_ anything while it's slow (there are no
> > system calls except for a few memory allocations and
> > de-allocations). It seems to have some exponential function on the
> > number of pathnames involved etc.
>
> I see lots of brk calls changing the heap size, up, down, up, down,
> over and over.
>
> This smells a bit like c++ new/delete behavior to me.
>

Hmmm... can glibc be clued in to do some hysteresis on the memory
allocation?

-hpa