staikos at kde.org
Tue Nov 1 02:08:58 CET 2005
On Monday 31 October 2005 19:38, Barth Netterfield wrote:
> How much speed up do you get?
In terms of speed in general I did some tests today. The inlining really
helps. Non-debug builds are very clearly significantly faster than debug
builds now. They're still X limited, though, and algorithmically limited.
For instance, take demo.kst. If you scroll the PSDs, you can easily notice a
significant slowdown as more points are plotted. For 1.3 we can think about
reworking the drawing algorithm to improve this. Meanwhile, optimized builds
should be quite usable for real-world data in trunk again, and probably a bit
faster than 1.1.
I can't help but think that our PSD algorithm could be a point of
improvement too. It's a big glaring hotspot in the profiler, comparable to
the equation interpreter (which should -not- be the case). On the other
hand, I have some new ideas for a way to significantly speed up the equation
interpreter too and I hope to do some experiments on it one day.
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