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Time measurement

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Time measurement

Subject: Time measurement
From: Daniel Luis dos Santos <email@hidden>
Date: Tue, 2 Dec 2008 07:08:50 +0000

Hello,

Not sure I should ask this here.

How do I get time measurements in milliseconds? What is the accuracy of the mac's C library implementation ?

I am using the clock() function from time.h and measuring differences in seconds between the trigering of a NSTimer.

The NSTimer fires every 0.1 secs, and in the event code I measure the difference between the current clock() call and the previous. I then divide it by the CLOCKS_PER_SEC constant and get two orders of magnitude difference than the interval in the timer. I get 0.001 secs instead of the 0.1 of the NSTimer.

Any ideias ?

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