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Home » Developing U++ » U++ Developers corner » SSE2 and SVO optimization (Painter, memcpy....)
Re: BufferPainter::Clear() optimization [message #54036 is a reply to message #54033] Fri, 22 May 2020 11:39 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 13980
Registered: November 2005
Ultimate Member
[quote title=Tom1 wrote on Fri, 22 May 2020 11:13]Quote:

Then I also thought of handling something like <= 16 .. 32 sizes inline and the rest in a deeper never_inline function. This would probably improve the situation without adding so much complexity.


In the trunk now... >=16 now handled by non-inline function. There is impact in your benchmark (the one that runs for all sizes), less impact in my benchmark (with ransom sizes), but I think this is the right move...

Another benefit is that we can now consider using AVX (testing for AVX presence would be clumsy in inline function I think).

Mirek
 
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