Re: how to measure scheduler latency on powerpc? realfeel doesn't work due to /dev/rtc issues

Chris Friesen
2003-05-09T06:02:30Z

William Lee Irwin III wrote:

> Try the timebase instead.

The timestamp is not hard to get. The problem is getting a medium-frequency
(2KHz or so) hardware interrupt to drive the test.

On intel, you can do this by programming /dev/rtc. This does not work in powerpc.

Chris

--
Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com