linux-kernel - Re: Timing 250 versus 1000

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Message-ID: <4F818DBA.3080108@ladisch.de>
Date:	Sun, 08 Apr 2012 15:08:10 +0200
From:	Clemens Ladisch <clemens@...isch.de>
To:	Alex Stone <alex.parchment@...dex.ru>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Timing 250 versus 1000

Alex Stone wrote:
> Is there an important reason why timing in the kernel is set to 250 by default?

It's a compromise.  Read kernel/Kconfig.hz.

> those of us who write a lot of midi driven work, we're still more or
> less required to use some sort of RT kernel to get any degree of
> playback timing accuracy.

The ALSA sequencer timer stopped using the system timer years ago.
And the difference between RT and 'normal' kernels is not the timer
frequency.


Regards,
Clemens
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