Overview
Examples
Screenshots
Comparisons
Applications
Download
Documentation
Tutorials
Bazaar
Status & Roadmap
FAQ
Authors & License
Forums
Funding Ultimate++
Search on this site
Search in forums












SourceForge.net Logo
Home » Developing U++ » U++ Developers corner » SSE2 and SVO optimization (Painter, memcpy....)
Re: BufferPainter::Clear() optimization [message #53960 is a reply to message #53957] Mon, 18 May 2020 10:16 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 14261
Registered: November 2005
Ultimate Member
Tom1 wrote on Sun, 17 May 2020 23:25
Mirek,

Please check out this one. It features better performance on MSBT19 / MSBT19x64 with low counts, and works well on CLANG/CLANGx64 too:


I think there are 2 issues:

- Cache bypass starts at 8MB.
- Missing alignment adjustment for cache bypass.
- I might be wrong, but why is there " - 4": __m128i *e = (__m128i*)t + (len>>2) - 4; ?

But yes, it hits something for MSC compiler... Smile

Mirek

[Updated on: Mon, 18 May 2020 10:25]

Report message to a moderator

 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Should we still care about big-endian CPUs?
Next Topic: TheIDE crash after switching package
Goto Forum:
  


Current Time: Sat Jun 07 02:38:02 CEST 2025

Total time taken to generate the page: 0.07571 seconds