Subject: Re: [linux-audio-dev] Re: latencies in NT
From: Richard A. Smith (rsmith_AT_bitworks.com)
Date: Thu Aug 03 2000 - 16:51:52 EEST
On Thu, 3 Aug 2000 11:28:58 +0200, Benno Senoner wrote:
>> Note the accumulated maximum for standard NT kernel (45 ms)
We use vci's product on a controller of large machine for one of our customers.
>But how many audio/multimedia apps will take advantage of this RT-NT
>when this RT feature is not available out of the box plus you will
>have to pay $$$ for the product.
>(The price is not even listed , thus I assume it won't cost only
>a few bucks)
its $300 qty. 1. Less if you pony up the $10,000 for developement subscription.
>Not to forget the same problem as in RTLinux:
>you will need to rewrite all audio/video drivers for this RT-NT platform
>in order to take full advantage of it.
>Not to mention that your app will certainly not be simple user-space process
>like in the linux lowlatency case.
Yep, exactly.. It's almost exactly the same as RTLinux. It replaces the parts of
the HAL layer. A "normal" app would require 2 parts one user and one "real
time" that communicate via shared memory.
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