Re: vForce performance vis-a-vis std C functions

• Subject: Re: vForce performance vis-a-vis std C functions
• From: Jeff Biggus <email@hidden>
• Date: Thu, 26 Jan 2012 18:57:56 -0600

I just ran the same tests (though with smaller arrays of 25k and the mach timing) on an iPhone 4S running iOS 5 and found that vvsin and vvsqrt were both consistently better than a regular sin or sqrt loop for the entire range of array sizes (roughly 30-40% better speeds).

Interesting that we see the problems on the Xeon side, but the A5 chips seem to have consistently better results across the board.

-Jeff
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
PerfOptimization-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

• Follow-Ups:
  • Re: vForce performance vis-a-vis std C functions
    • From: Ian Ollmann <email@hidden>

• Prev by Date: Re: vForce performance vis-a-vis std C functions
• Next by Date: Re: vForce performance vis-a-vis std C functions
• Previous by thread: Re: vForce performance vis-a-vis std C functions
• Next by thread: Re: vForce performance vis-a-vis std C functions
• Index(es):
  • Date
  • Thread