Am 07.06.2014 01:50, schrieb Brian Schott:
On Friday, 6 June 2014 at 00:33:23 UTC, Brian Schott wrote:
Implementing some SIMD code just in the lexWhitespace function
causes a drop in total lexing time of roughly 3.7%. This looks
promising so far, so I'm going to implement similar code in
lexStringLiteral, lexSlashStarComment, lexSlashSlashComment,
and lexSlashPlusComment.
Some moe numbers:
SIMD reduces execution time by 5.15% with DMD.
Compiling the non-SIMD code with GDC reduces execution time by
42.39%.
So... There's that.
thats why im always puzzled when people start to optimze algorithms
based on DMD results - currently one should always compare any results
before optimization with GDC/LDC
