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Home » Developing U++ » U++ Developers corner » SSE2 and SVO optimization (Painter, memcpy....)
Re: BufferPainter::Clear() optimization [message #53961 is a reply to message #53960] Mon, 18 May 2020 11:13 Go to previous messageGo to previous message
Tom1
Messages: 1303
Registered: March 2007
Ultimate Contributor
Hi,

Yes, you're right: The alignment should be handled. I'll take a look at it... (just need to minimize the code size in order to avoid penalty for short transfers. It is extremely sensitive.)

The cache limit is intentionally 8MB as this is the sweet spot for my Core i7. Probably should get this value from the system to optimize the correct threshold.

The -4 compensates the rest of the samples handled within the leaked default in the switch. (The below cases do the trick).

Best regards,

Tom

 
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