[LAU] Audio performance in guest VM (MS-Win) on Linux host

[Banibrata Dutta]

Thanks again Hans. Will try and get back, probably over the weekend.

On Fri, Aug 16, 2019 at 4:08 PM Hans Wilmers <hanswil at notam02.no> wrote:

> Hi Banibrata,
> using USB redirect, the guest os is using its own driver, so I would
> imagine guest kernel behaviour plays a role.
>
> In my setting, "simple" listening works fine, but low latency causes
> dropouts, which is not surprising as there is a busy network in between.
> You may have better luck with the guest directly on the client machine.
>
> / Hans
>
>
> ---
> Hans Wilmers
> Notam
> Sandakerveien 24 D, bygg F3
> N-0473 Oslo Norway
> tlf.: +47 22358060
> mob.: +47 92459361
> http://www.notam02.no
>
> On 16/08/2019 07:09, Banibrata Dutta wrote:
> > Thank you for the reply Hans.So using USB redirect, I can access any USB
> > audio interface, but shouldn't have to worry too much about the
> > interrupt latency or guest kernel behaviour, when it comes to
> > low-latency behaviour ?
> >
> > On Sat, Aug 10, 2019 at 8:22 PM Hans Wilmers <hanswil at notam02.no
> > <mailto:hanswil at notam02.no>> wrote:
> >
> >     Hi,
> >     there are several possibilities to make the guest OS access USB
> >     peripherals (almost) directly:
> >
> >     USB Redirect
> >     and
> >     USB Passthrough
> >
> >     https://github.com/kimduho/kvm/wiki/KVM-USB-Redirect-or-Passthrough
> >
> >     I can select USB redirect comfortably using a spice client, and a KVM
> >     virtual machine on another machine - and it works fine even over the
> >     network.
> >
> >     / Hans
> >
> >
> >     ---
> >     Hans Wilmers
> >     Notam
> >     Sandakerveien 24 D, bygg F3
> >     N-0473 Oslo Norway
> >     tlf.: +47 22358060
> >     mob.: +47 92459361
> >     http://www.notam02.no
> >
> >     On 10/08/2019 10:34, bdutta wrote:
> >     > Hi,
> >     >
> >     > Is anyone aware of any comparative study of various hypervisors
> (KVM,
> >     > VMware, Virtualbox) running Windows guests, on Linux hosts -- in
> >     respect of
> >     > quality of audio software, in terms of latency, jitter, glitches
> >     etc. Based
> >     > on my reading, I've understood that accuracy and reliability of
> >     the timer
> >     > interrupt available to guest kernel (in VM) should not be expected
> >     to be
> >     > equal to same on bare-metal. However, are there some hypervisors
> >     > (workstation oriented), that are better than others in this regard
> ?
> >     >
> >     > The question is in context of need to run some Windows software
> which
> >     > doesn't work well under WINE (even with WineASIO, various
> >     recommended WINE
> >     > tricks applied), and I find the need to setup/maintain a dual-boot
> >     > environment too cumbersome, as I do 90% of my work in Linux.
> >     >
> >     > regards,
> >     > BD
> >     >
> >     >
> >     >
> >     > --
> >     > Sent from:
> >     http://linux-audio.4202.n7.nabble.com/linux-audio-user-f5.html
> >     > _______________________________________________
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> >     > Linux-audio-user at lists.linuxaudio.org
> >     <mailto:Linux-audio-user at lists.linuxaudio.org>
> >     > https://lists.linuxaudio.org/listinfo/linux-audio-user
> >     >
> >     _______________________________________________
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> >
> >
> >
> > --
> > regards,
> > Banibrata
> > http://www.linkedin.com/in/bdutta
> > http://twitter.com/edgeliving
>


-- 
regards,
Banibrata
http://www.linkedin.com/in/bdutta
http://twitter.com/edgeliving
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