Re: 2.2.18Pre Lan Performance Rocks!

["Jeff V. Merkey" <jmerkey@timpanogas.org>]

Larry McVoy wrote:
> 
> On Tue, Oct 31, 2000 at 03:15:37PM -0700, Jeff V. Merkey wrote:
> > The quality of the networking code in Linux is quite excellent.  There's
> > some scaling problems relative to NetWare.  We are firmly committed to
> > getting something out with a Linux code base and NetWare metrics.  Love
> > to have your help.
> 
> Jeff, I'm a little concerned with some of your statements.  Netware may
> be the greatest thing since sliced bread, but it isn't a full operating
> system, so comparing it to Linux is sort of meaningless.

It's makes more money in a week than Linux has ever made.  

  Consider your
> recent context switch claims.  Yes, I believe that you can do the moral
> equiv of a longjmp() in the kernel in a few cycles, but that isn't a
> context switch, at least, it isn't the same a context switch in the
> operating system sense.  
A context switch in anoperating system context in it's simplest for is

mov    x, esp
mov    esp, y

It's different - last I checked, Netware was
> essentially a kernel and nothing else.  


Is there a file system?
Several.

  Are there
> processes with virtual memory?
Yes.

  Are they preemptive?
Yes.

  Does it support
> all of P1003.1?  
Yes.

Etc.  If the answers to all of the above are "yes"
> and you can support all that and get user to user context switches in a
> clock cycle, well, jeez, you really do walk on water and I'll publicly
> apologize for ever doubting your statements.  

Apology accepted.

Jeff


> --
> ---
> Larry McVoy              lm at bitmover.com           http://www.bitmover.com/lm
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