Re: [PATCH][1/6] perfctr-2.7.3 for 2.6.7-rc1-mm1: core

[Andrew Morton]

Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> On Tue, Jun 22, 2004 at 02:04:17AM -0700, Andrew Morton wrote:
> > Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
> > >
> > > On Tue, Jun 22, 2004 at 01:53:11AM -0700, Andrew Morton wrote:
> > > > Also there should be a document or a manpage or something which describes,
> > > > in detail:
> > > > 
> > > > - the user/kernel API  (separate document, probably)
> > > 
> > > It also needs moving back to /proc/<pid>/ files from the syscall API.
> > 
> > What does this mean?
> 
> Early version of perfctr used files in /proc/<pid>/ for controlling perfctr
> instead of the syscalls, and indeed that's a much better fit for most of them.
> Let's ressurect that code instead of doing the syscall approach.

This appears to have come out of the blue.  Please explain why you think
this change is needed.
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