Re: CVS commit: src/sys/kern

To: Andrew Doran <ad%netbsd.org@localhost>
Subject: Re: CVS commit: src/sys/kern
From: David Laight <david%l8s.co.uk@localhost>
Date: Mon, 11 Feb 2008 07:24:48 +0000

On Mon, Feb 11, 2008 at 04:19:24AM +0000, Andrew Doran wrote:
> We have the 'percpu' allocator now so it would be possible have a per-CPU
> component for every event counter so that updates don't suffer from this
> problem. The difficult bit is (I think) figuring out how to use that in
> assembly language, and how to deal with bootstrap when the VM system and the
> percpu allocator aren't working yet.

You also need to put many (event) counters into a single per-cpu cache line.

        David

-- 
David Laight: david%l8s.co.uk@localhost

References:
- CVS commit: src/sys/kern
  - From: Andrew Doran
- Re: CVS commit: src/sys/kern
  - From: Andrew Doran

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