On Sat, 5 Jun 2010, Stefan Westerfeld wrote:
TIMEOUT MERGE TIMEOUT MERGE TIMEOUT MERGE TIMEOUT MERGE TIMEOUT MERGE
Hi!
To be able to use SSE functions (like my fast sincos() implementation), the
caller has to ensure 16-byte alignment. AlignedArray does this in a fairly
elegant manner, but so far it was only used by the Resampler code. Since now
there are other pieces of code (like the SpectMorph Encoder) that need
16-byte-alignment (for calling SSE functions), here is a patch to move the
class to Birnet::AlignedArray.
Thinking of cache line trashing, shouldn't we strive for a
64-byte aligned array if we do this at all?
64-byte aligned memory blocks are generally used to
avoid false sharing. See:
http://en.wikipedia.org/wiki/False_sharing
repo: http://space.twc.de/public/git/stwbeast.git
branch: aligned-array
Cu... Stefan
--
Stefan Westerfeld, Hamburg/Germany, http://space.twc.de/~stefan
Yours sincerely,
Tim Janik
---
http://lanedo.com/~timj/
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