From mboxrd@z Thu Jan 1 00:00:00 1970 From: george anzinger Date: Tue, 18 Mar 2003 23:21:57 +0000 Subject: [Linux-ia64] Re: POSIX timers interface for IA64 Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org David Mosberger wrote: >>>>>>On Fri, 07 Mar 2003 14:40:04 +0100, Eric Piel said: > > > Eric> Hello, Here is a patch to have the POSIX timer interface > Eric> completly integrated in ia64 (2.5.64). The programs in > Eric> userland can now access the siginfo structure. With that patch > Eric> the test programs of the high resolution timers pass without > Eric> error but one which seems to also be triggered on ix86: > Eric> nanosleeps too short. When we get the cascade stuff fixed :), we can address this issue. On the ix86 the too short sleep is caused by adding less than 1/HZ to the wall clock each timer interrupt. You might want to see what value your platform adds. I intend to address this soon, but will need to check with the community about the correct fix. As it now stands, CLOCK_MONOTONIC ticks at a different rate than CLOCK_REALTIME. What to do, Oh what to do... -g > > Eric> I did the same modifications to the ia32 support but I wasn't > Eric> able to test them. > > I applied this patch in my (ia64) tree. > > Thanks! > > --david > > > ------------------------------------------------------- > This SF.net email is sponsored by:Crypto Challenge is now open! > Get cracking and register here for some mind boggling fun and > the chance of winning an Apple iPod: > http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en > to unsubscribe: http://lists.sourceforge.net/lists/listinfo/high-res-timers-discourse > High-res-timers-discourse mailing list > High-res-timers-discourse@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/high-res-timers-discourse > > -- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml