Date: Thu, 29 Oct 1998 12:41:31 -0600 (CST) From: Shafia Kausar <s0k9955@unix.tamu.edu> To: FreeBSD Hackers <freebsd-hackers@FreeBSD.ORG> Cc: shafiak@ee.tamu.edu Subject: Timer Granularity Message-ID: <Pine.SOL.3.96.981029123940.26121A-100000@scully.tamu.edu>
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Hi, I am new to the FreeBSD OS. I have a few questions for which I could not find answers on the webpages. I am using the FreeBSD version 2.1.5 Relase #2. What is the kernel clock granularity in this version? There are a number of clocks being used in FreeBSD. Which clock is used for real time kernel processing? Is this accessible to the users? Has the timer granularity improved in the releases following this release? In the /sys/kern/kern_clock.c file the variable time_precision has been initialised to 1microsec, but it has been stated that the resolution decreases depending on whether the external clock is working or not. What is the range of the variation in the resolutuion? Any help or pointers are welcome. Thanks -Shafia To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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