[64studio-devel] [Jackit-devel] CPU load reading too high on dual-core andSMP machines?

[Quentin Harley]

Hi Lee,

What would the command line options be to enable gettimeofday?

I tried < jackd -c gettimeofday > in qjackctrl, but got errors in the
messages window.

Thanks,
Quentin

-----Original Message-----
From: jackit-devel-bounces at lists.sourceforge.net
[mailto:jackit-devel-bounces at lists.sourceforge.net] On Behalf Of Lee Revell
Sent: 07 November 2006 19:07
To: Daniel James
Cc: jackit-devel at lists.sourceforge.net; 64Studio mailing list;
paul at linuxaudiosystems.com
Subject: Re: [Jackit-devel] CPU load reading too high on dual-core andSMP
machines?

On Tue, 2006-11-07 at 14:20 +0000, Daniel James wrote:
> > Which wall clock
> > are you using with JACK (gettimeofday, TSC, HPET etc.) ?
> 
> Our latest 2.6.18 kernel packages have CONFIG_HPET_TIMER=y but this
> is 
> preventing certain systems from booting, so unless there's a fix soon 
> we'll have to disable HPET by default. Is there a way to get jackd to 
> report which clock source it is actually using? I couldn't see
> anything 
> relevant in the verbose message output.
> 

A distro that targets 64 bit machines MUST configure JACK to use
gettimeofday().  No other time source is reliable.

Lee


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