Subject: Re: sysconf _SC_CLK_TCK bug?
To: Ben Harris <firstname.lastname@example.org>
From: Perry E. Metzger <email@example.com>
Date: 06/17/2002 11:42:39
Ben Harris <firstname.lastname@example.org> writes:
> > Actually, according to the documents, it returns things in the fully
> > unrelated CLOCKS_PER_SEC unit.
> Are you sure?
Read the time.h thing on the opengroup web site, and the text for
times. You haven't quite got the whole picture I think.
> <http://www.opengroup.org/onlinepubs/007904975/functions/times.html> says:
> # All times are measured in terms of the number of clock ticks used.
> and in the APPLICATION USAGE (informative):
> # Applications should use sysconf(_SC_CLK_TCK) to determine the number of
> # clock ticks per second as it may vary from system to system.
> Nowhere does it mention CLOCKS_PER_SEC. The normative text in 1003.1-1996
> is identical, and times(3) agrees.
Ignore 1996. This seems to have changed a lot.
> OK. I wasn't sure that the old one could be considered to be
> comprehensively dead just yet.
The new one was voted in.
Perry E. Metzger email@example.com
NetBSD: The right OS for your embedded design. http://www.wasabisystems.com/