Re: Serial performance problem

Subject: Re: Serial performance problem

From: Chris Espinosa <email@hidden>

Date: Thu, 29 May 2008 16:17:13 -0700

Delivered-to: email@hidden

On May 28, 2008, at 1:51 AM, Luca Toso wrote:

I developed an application under OSX 10.4 with XCode 2 named Reader.
The program executes a read from an external component through a serial communication channel, so I started from the SerialPortSample (http://developer.apple.com/samplecode/SerialPortSample/index.html) and everything works fine.
After the deployment of the new Leopard I ported the application under XCode 3 to work with the new 10.5. I used the same pc and nothing has been changed about the serial communication.
With the Leopard the reading process of the "Reader.app" is very slow but if I run the "Reader" file that is contained into the "Reader.app" things are faster.
How can I solve the performance problem with the "Reader.app" file?

Perhaps by investigating with Apple's performance tools?

Instruments User Guide

Shark User Guide

Chris

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References:

>Serial performance problem (From: "Luca Toso" <email@hidden>)