Vc branch ready for testing

[Lukast dev]

Pentalis, you might be interested in this document maybe
http://people.redhat.com/drepper/cpumemory.pdf
It is quite technical, but it is educational.

Cheers
Lukas

2012/9/11 JL VT <pentalis at gmail.com>:
> I have overclockable memory but I'm fairly sure we are not bottlenecked by
> memory, nowadays nearly nothing is.
>
> But I can still test, I can test at 1333 mhz and 1866 mhz (just an example)
> and see if there is a chance. Is there any other way to check for a memory
> bottleneck?
>
> On Sep 11, 2012 2:52 AM, "Boudewijn Rempt" <boud at valdyas.org> wrote:
>>
>> On Tuesday 11 September 2012 Sep, Sven Langkamp wrote:
>>
>> >
>> > I have done a quick experiment to test that in
>> > branch krita-multithreadedfixedbitblt-langkamp. Stroke benchmark is
>> > slightly faster and I measured that the time fixedBitBlt went down
>> > (haven't
>> > done detailed testing, but is looks like a speedup of 1.6). I didn't
>> > notice
>> > any improvements while painting though. Would be interesting to see if
>> > it
>> > give bigger improvements on a quad-core (no extra libs required).
>> >
>> > I'm more and more wondering where all the performance goes.
>> >
>>
>> Maybe memory io? I mean, we must have awful cache locality throughout
>> Krita.
>>
>> --
>> Boudewijn Rempt
>> http://www.valdyas.org, http://www.krita.org, http://www.boudewijnrempt.nl
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>> https://mail.kde.org/mailman/listinfo/kimageshop
>
>
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