Re: Does OpenBSD support Receive Side Scaling (also called: multi-queue receiving)

2022-10-15 Thread Stuart Henderson
On 2022-10-14, Gabor LENCSE wrote: > Dear All, > > I am a researcher and I would like to benchmark the stateful NAT64 > performance of OpenBSD PF. > > I use a 32-core server as DUT (Device Under Test). When I use Linux for > benchmarking other stateful NAT64 implementations, I use the "ethtool -

Re: sndio and bit perfect playback

2022-10-15 Thread Alexandre Ratchov
On Fri, Oct 14, 2022 at 06:43:46PM +0200, Jan Stary wrote: > > > In my experience resampling quality in any particular implementation > > > is not guaranteed and can introduce significant artifacts. > > > Declaring a particular implementation "good enough" without > > > knowing more seems premature

Re: Does OpenBSD support Receive Side Scaling (also called: multi-queue receiving)

2022-10-15 Thread Hrvoje Popovski
On 15.10.2022. 9:39, Stuart Henderson wrote: > On 2022-10-14, Gabor LENCSE wrote: >> Dear All, >> >> I am a researcher and I would like to benchmark the stateful NAT64 >> performance of OpenBSD PF. >> >> I use a 32-core server as DUT (Device Under Test). When I use Linux for >> benchmarking othe

Re: sndio and bit perfect playback

2022-10-15 Thread Åke Nordin
On 10/14/22 11:21, Alexandre Ratchov wrote: > Here are the measures of the aliasing noise using sine sweeps. Check > the figure for the 44.1kHz to 48kH conversion, the sndiod column: > > https://arverb.com/pub/src/ Those are interesting results, indeed. Is there a write-up about the testing metho

ksh: documented substitution behavior contradicts actual behavior

2022-10-15 Thread Lucas de Sena
Hi, After trying to split a string into fields delimited with colons and spaces, I found this bug in how ksh(1) does substitution. The actual behavior contradicts what other shells like bash and mksh do and also contradicts its own manual. Running the following on other shells (say, bash) prints

Re: sndio and bit perfect playback

2022-10-15 Thread Alexandre Ratchov
On Sat, Oct 15, 2022 at 10:03:52PM +0200, Åke Nordin wrote: > On 10/14/22 11:21, Alexandre Ratchov wrote: > > Here are the measures of the aliasing noise using sine sweeps. Check > > the figure for the 44.1kHz to 48kH conversion, the sndiod column: > > > > https://arverb.com/pub/src/ > > Those ar

Re: sndio and bit perfect playback

2022-10-15 Thread Alexandre Ratchov
On Fri, Oct 14, 2022 at 04:01:45PM -0400, Geoff Steckel wrote: > > > > I did simple A/B tests with music from CDs and my ears couldn't hear > > the aliasing noise. Try it. > Good a/b >x< tests for audio require extreme care to get accurate results. > Simple sine sweeps don't show IM distortion wel

Re: ksh: documented substitution behavior contradicts actual behavior

2022-10-15 Thread Kastus Shchuka
On Sat, Oct 15, 2022 at 11:42:17PM -0300, Lucas de Sena wrote: > Hi, > > After trying to split a string into fields delimited with colons and > spaces, I found this bug in how ksh(1) does substitution. The actual > behavior contradicts what other shells like bash and mksh do and also > contradict