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Re: ptr_compare replace with memcmp and associated performance

To: Stewart Smith <stewart@xxxxxxxxxxxxxxxx>
From: Peter Benjamin Volk <peter@xxxxxxxxxxxx>
Date: Sun, 17 May 2009 00:04:41 +0200
Cc: drizzle-discuss@xxxxxxxxxxxxxxxxxxx, maria-developers@xxxxxxxxxxxxxxxxxxx, internals@xxxxxxxxxxxxxxx
In-reply-to: <20090508071136.GE30581@flamingspork.com>
User-agent: Thunderbird 2.0.0.21 (Windows/20090302)

Stewart Smith wrote:
> 2) Is this perf difference going to be true on different platforms?
Yes definitely. E.g. SSE4.2 supports an asm command for string
comparison. asm commands for mem cpms are on the way for future platforms.

Cheers,
Peter

-- 
Peter Benjamin Volk
Project Lead

   DDEngine.org
   An open source project
   Phone:  [+49] (0) 351 862 9566
   mailto:peter@xxxxxxxxxxxx

References

ptr_compare replace with memcmp and associated performance
From: Stewart Smith, 2009-05-08