Re: How to get a sustained read speed under OS X
Re: How to get a sustained read speed under OS X
- Subject: Re: How to get a sustained read speed under OS X
- From: Matthew Xavier Mora <email@hidden>
- Date: Thu, 3 Jun 2004 17:49:33 -0700
At 1:04 PM -0700 6/3/04, Jeff Moore wrote:
In short using (abusing?) the VM system like this is not the way to
get high performance disk IO on Mac OS X.
I don't know if I would classify it as abusing the VM system. You are
telling it exactly what data you'll be working with, so it can get it
ready.
Running the MapLargeFile sample code (using 1mb buffers) on my
PowerBook with two large finder copies going on in the background, it
measured at ~23 megabytes/sec. That is without any priority tweaking.
That looks like it's well within Marc's margin. :-)
The G5 is a strange beast though, so remember, your mileage may vary.
But as Bill said, the CoreAudio team has sample code that probably
already does what you need.
Matt
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.