Subject: Re: [linux-audio-user] headless audio apps
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Fri Jul 30 2004 - 11:14:20 EEST
On Thu, Jul 29, 2004 at 11:36:07 +0100, robin fell wrote:
> Hello
>
> [apologies for remotely on-topic post - i'm an X noob]
>
> Has anyone on the list any useful anecdotes about running X apps
> remotely (through ssh in my case) and having strange problems?
>
> Since I'm still in the process of setting up a terminal I haven't gotten
> a full list of the misbehaving apps - but I have seen ~30% load increase
> (as reported by an admittedly old qjackctl) upon starting meterbridge
> remotely (vs starting locally).
Meterbridge uses lots of large bitmap blits to draws meters, so ssh is
going to eat all your cpu in crypting up the bitmaps to send them over
ethernet.
You could try ysing a cheaper cypto algorithm (eg. blowfish), or better, not
tunneling over ssh.
If you have hardware GL on the X client machine you could wait for the GL
version of meterbridge - that would just have to send the GL instructions
over ethernet which should be much more practical.
> I'm wondering if this is something I have this set-up incorrectly....
I think trying to tunnel fast moving X apps over ssh is... optimistic.
- Steve
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