From: Clemens Ladisch <clemens@ladisch.de>
To: Alex Stone <alex.parchment@yandex.ru>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Timing 250 versus 1000
Date: Tue, 10 Apr 2012 12:04:09 +0200 [thread overview]
Message-ID: <4F840599.7060805@ladisch.de> (raw)
In-Reply-To: <4F81CE0A.6080207@yandex.ru>
Alex Stone wrote:
> On 04/08/2012 05:08 PM, Clemens Ladisch wrote:
>> Alex Stone wrote:
>>> 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.
>
> I'm using jack with seq, so are you saying the ALSA sequencer timer is
> using a higher timer rate than than is set in the kernel,
It's using different timers (RTC or hrtimer), which support higher
precision.
> and there's no need for me to bother with this,
Yes. If you want to be sure, check that G3 appears in /proc/asound/timers
when you're using the sequencer.
Regards,
Clemens
next prev parent reply other threads:[~2012-04-10 10:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-08 9:52 Timing 250 versus 1000 Alex Stone
2012-04-08 13:08 ` Clemens Ladisch
[not found] ` <4F81CE0A.6080207@yandex.ru>
2012-04-10 10:04 ` Clemens Ladisch [this message]
2012-04-10 15:39 ` Alex Stone
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4F840599.7060805@ladisch.de \
--to=clemens@ladisch.de \
--cc=alex.parchment@yandex.ru \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox