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From: Jay Ts <jay@toltec.metran.cx>
To: andrewm@uow.edu.au (Andrew Morton)
Cc: linux-kernel@vger.kernel.org (lkml),
	linux-audio-dev@ginette.musique.umontreal.ca (lad)
Subject: Re: [linux-audio-dev] low-latency scheduling patch for 2.4.0
Date: Wed, 10 Jan 2001 20:12:18 -0700 (MST)	[thread overview]
Message-ID: <200101110312.UAA06343@toltec.metran.cx> (raw)
In-Reply-To: <3A57DA3E.6AB70887@uow.edu.au> from "Andrew Morton" at Jan 07, 2001 01:53:50 PM

> A patch against kernel 2.4.0 final which provides low-latency
> scheduling is at
> 
> 	http://www.uow.edu.au/~andrewm/linux/schedlat.html#downloads
> 
> Some notes:
> 
> - Worst-case scheduling latency with *very* intense workloads is now
>   0.8 milliseconds on a 500MHz uniprocessor.

Wow!  That's super.  Now about the only thing left is to get it included
in the standard kernel.  Do you think Linus Torvalds is more likely
to accept these patches than Ingo's?  I sure hope this one works out.

>   This is one to
>   three orders of magnitude better than BeOS, MacOS and the Windowses.

** salivates **

> - Low latency will probably only be achieved when using the ext2 and
>   NFS filesystems.

Well it's extremely nice to see NFS included at least.  I was really
worried about that one.  What about Samba?  (Keeping in mind that
serious "professional" musicians will likely have their Linux systems
networked to a Windows box, at least until they have all the necessary
tools on Linux.

> - If you care about latency, be *very* cautious about upgrading to
>   XFree86 4.x.  I'll cover this issue in a separate email, copied
>   to the XFree team.

Did that email pass by me unnoticed?  What's the prob with XF86 4.0?

- Jay Ts
-
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  reply	other threads:[~2001-01-11  3:13 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-11 11:30 Andrew Morton
2001-01-07  2:53 ` Andrew Morton
2001-01-11  3:12   ` Jay Ts [this message]
2001-01-11  3:22     ` [linux-audio-dev] " Cort Dougan
2001-01-11 12:38       ` Alan Cox
2001-01-11  5:19     ` David S. Miller
2001-01-11 13:57       ` Daniel Phillips
2001-01-11 20:55       ` Nigel Gamble
2001-01-12 13:30         ` Andrew Morton
2001-01-12 15:11           ` Tim Wright
2001-01-12 22:30             ` Nigel Gamble
2001-01-13  1:01             ` Andrew Morton
2001-01-15 19:46               ` Tim Wright
2001-01-12 22:46           ` Nigel Gamble
2001-01-12 23:08           ` george anzinger
2001-01-21  0:05           ` yodaiken
2001-01-22  0:54             ` Nigel Gamble
2001-01-22  1:49               ` Paul Barton-Davis
2001-01-22  2:21                 ` Nigel Gamble
2001-01-22  3:31                   ` J Sloan
2001-01-28 13:14                   ` yodaiken
2001-01-28 14:07                     ` Bill Huey
2001-01-28 14:26                       ` Andrew Morton
2001-01-29  5:02                       ` yodaiken
2001-01-28 14:19                     ` Andrew Morton
2001-01-28 16:17                       ` Joe deBlaquiere
2001-01-29 15:44                         ` yodaiken
2001-01-29 17:23                           ` Joe deBlaquiere
2001-01-29 17:38                             ` yodaiken
2001-01-29 18:03                               ` Joe deBlaquiere
2001-01-30 15:08                           ` David Woodhouse
2001-01-30 15:44                             ` Joe deBlaquiere
2001-01-30 16:29                               ` Paul Davis
2001-01-30 16:35                                 ` David Woodhouse
2001-01-31  7:55                               ` george anzinger
2001-01-30 16:19                             ` David Woodhouse
2001-02-01 12:40                               ` Pavel Machek
2001-02-01 22:33                                 ` David Woodhouse
2001-02-02  4:17                                   ` Joe deBlaquiere
2001-01-30 20:51                             ` yodaiken
2001-01-30 21:00                               ` David Woodhouse
2001-01-29 22:08                         ` Pavel Machek
2001-01-29 22:31                         ` Roger Larsson
2001-01-29 23:46                           ` Joe deBlaquiere
2001-01-30 15:08                       ` David Woodhouse
2001-01-11 21:31       ` David S. Miller
2001-01-15  5:27         ` george anzinger
2001-01-12 13:21       ` Andrew Morton
2001-01-14 11:35   ` Andrew Morton
2001-01-14 14:38     ` Gregory Maxwell
2001-01-15 10:59       ` Andrew Morton
2001-01-13  2:45 ` [linux-audio-dev] " Jay Ts
2001-01-21  0:10   ` yodaiken
2001-01-26  9:14     ` Pavel Machek
2001-01-13 18:11 ` video drivers hog pci bus ? [was:[linux-audio-dev] low-latency scheduling patch for 2.4.0] Jörn Nettingsmeier

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