Path: csiph.com!eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail From: Folderol Newsgroups: comp.sys.raspberry-pi Subject: Re: RT Kernel Date: Sat, 9 Jan 2021 09:45:16 +0000 Organization: A noiseless patient Spider Lines: 25 Message-ID: <20210109094516.7efc7d3c@devuan> References: <20210107172620.1601ea0c@devuan> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Injection-Info: reader02.eternal-september.org; posting-host="5bb6329bfa5be3e3b041603789643532"; logging-data="19444"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX199HE+i7NBngYnGoBZZHNwO5sKCx5VQJNo=" Cancel-Lock: sha1:QkK18BdCxF8KolZPlmKCDaBr/D8= X-Newsreader: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Xref: csiph.com comp.sys.raspberry-pi:25643 On Fri, 8 Jan 2021 20:40:51 +0000 druck wrote: >On 07/01/2021 17:26, Folderol wrote: >> Does anyone know if it is reasonably easy to get an RT kernel running on the Pi? >> I'm using devuan beowulf to get a small footprint install *without* either >> systemd or pulseaudio. > >This was the second link in a google search for "Raspberry Pi real time >extensions" > >https://lemariva.com/blog/2019/09/raspberry-pi-4b-preempt-rt-kernel-419y-performance-test > >---druck Thanks for that. Very interesting indeed. It seems there is far less difference overall than on Intel/AMD CPUs, and although latency is considerably improved it's at the cost of overall performance. For light to medium amounts of audio processing it's not worth the bother. -- W J G