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Re: solving the CPU usage issue for non-visible pages

From: Brian Kardell <bkardell@gmail.com>
Date: Tue, 20 Oct 2009 20:48:06 -0700
Message-ID: <8fcaeb2c0910202048l53889f43k227e9a47126d20a6@mail.gmail.com>
To: robert@ocallahan.org
Cc: Maciej Stachowiak <mjs@apple.com>, "Ennals, Robert" <robert.ennals@intel.com>, Jonas Sicking <jonas@sicking.cc>, "public-webapps@w3.org" <public-webapps@w3.org>
I suppose I should not have used that phrasing... It wasn't really
accurate and it obscures my point...  My point was that I actually
wanted it to run in the background... So - does time stop, or just
rendering?  I think that you have to be very clear.

On Tue, Oct 20, 2009 at 8:43 PM, Robert O'Callahan <robert@ocallahan.org> wrote:
> On Wed, Oct 21, 2009 at 4:34 PM, Brian Kardell <bkardell@gmail.com> wrote:
>> For example, I recently the Image Evolution demo from
>> http://www.canvasdemos.com/2009/07/15/image-evolution/ as a kind of a
>> performance test and let it run for three days - during which it was
>> not "visible" 99.999% of the time.  Should processing stop - or just
>> painting?  Painting wont happen because the OS says it wont right?
> Depends on the OS, I guess. Performance testing is hard; for good
> performance testing you need a carefully set up environment. It's OK to
> require special browser configuration to make it believe that the user is
> always present and the window is always visible. I don't think we need to
> avoid Web platform or browser features because they might make performance
> testing a bit harder.
> Rob
> --
> "He was pierced for our transgressions, he was crushed for our iniquities;
> the punishment that brought us peace was upon him, and by his wounds we are
> healed. We all, like sheep, have gone astray, each of us has turned to his
> own way; and the LORD has laid on him the iniquity of us all." [Isaiah
> 53:5-6]
Received on Wednesday, 21 October 2009 12:21:30 UTC

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