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Re: scrolling optimization + asynchronous updates impossible
From: |
Marcus Brinkmann |
Subject: |
Re: scrolling optimization + asynchronous updates impossible |
Date: |
Sun, 16 Jun 2002 17:36:15 +0200 |
User-agent: |
Mutt/1.3.28i |
On Sat, Jun 15, 2002 at 03:56:18PM -0400, Roland McGrath wrote:
> > Actually, fs_notify.defs is using routines, not simpleroutines, and we have
> > special hacks in libdiskfs and console to get simpleroutines... delivering
> > them synchronously would work as well, although it would not be so good if
> > you have multiple clients.
>
> I think that might just have been an oversight, and it seems entirely
> reasonable for filesystems to refuse to do anything synchronous (let the
> message queuing do it).
If Thomas agrees, I will change it to simpleroutines, because I agree.
> > BTW, if the port queue is full, the call blocks in the server, even if it is
> > a simple routine, because the MiG stubs don't have a timeout (or notify
> > port). I just tried it: Using ports_manage...one_thread, the server will
> > block during operation, and the effect is that we have almost synchronizity
> > where the server is always a couple RPCs ahead (as many as the queue can
> > hold). In the case of several clients, this would block other clients, too.
>
> Ack. It should use timeout=0 and let the user lose if he didn't drain his
> port queue fast enough.
I agree here, too. Currently, it is quite convenient for me, though :)
The problem is that you really would like to know about it when this
happens. OTOH, the user of such a console probably would notice and refresh
the display.
Thanks,
Marcus
--
`Rhubarb is no Egyptian god.' Debian http://www.debian.org brinkmd@debian.org
Marcus Brinkmann GNU http://www.gnu.org marcus@gnu.org
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de
- scrolling optimization + asynchronous updates impossible, Marcus Brinkmann, 2002/06/14
- Re: scrolling optimization + asynchronous updates impossible, Roland McGrath, 2002/06/14
- Re: scrolling optimization + asynchronous updates impossible, Marcus Brinkmann, 2002/06/14
- Re: scrolling optimization + asynchronous updates impossible, Roland McGrath, 2002/06/15
- Re: scrolling optimization + asynchronous updates impossible,
Marcus Brinkmann <=
- Re: scrolling optimization + asynchronous updates impossible, Thomas Bushnell, BSG, 2002/06/16
- Re: scrolling optimization + asynchronous updates impossible, Roland McGrath, 2002/06/16
- Re: scrolling optimization + asynchronous updates impossible, Niels Möller, 2002/06/16
- Re: scrolling optimization + asynchronous updates impossible, Roland McGrath, 2002/06/16
Re: scrolling optimization + asynchronous updates impossible, Marcus Brinkmann, 2002/06/14