Ezekiel wrote:
"Matt" <matt@xxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:bvJcl.48808$Jy.31014@xxxxxxxxxxxxxxx
Roy Schestowitz wrote:
From: Jim Allchin
2. We need a paper which outlines technically how our system (kernel, web
service, file server) is better. I think we have Mark R signed up to
write
this (robs was supposed to engage him on this). This paper needs to cover
things like the facts that we have a preemptive kernel, asychronous I/O,
etc
Facts. that go to the core of why windows is different and Linux is old
unix. Facts
It seems he believed that Linux and Unix didn't have preemption or
asynchronous I/O and that Windows did.
And he would be CORRECT. At the time this email was written asynchronous IO
was *not* available for Linux. It's now a standard feature in the 2.6 kernel
but it wasn't the case back when the memo was written.
As far as the preemptive kernel goes. At the time the memo was written the
Linux kernel was *not* preemptive. Linux processes *are* preemptive but the
kernel itself was not. Since you clearly don't know what you're talking
about let me explain it for you.
If a /user-mode/ process is running then the Linux kernel is able to preempt
the user-mode process. But the kernel could *not* preempt itself or other
kernel code and it was written this way because it's a simpler kernel
design.
Looks like you beat me to the Wikipedia article. The point goes to you.
I guess that guy they hired out of DEC to build NT did know something
about OS. Too bad for MS that they wouldn't allow him to make NT the
way he wanted.
I would have the technical person help with this.
Yeah, that might be a good idea ... hopefully somebody who knew something
about computers before he came to Microsoft ... do we have somebody who's
taken an OS course in school?
So here we have some COLA bozo/advocate who is so full of himself that he
actually believes he knows more about OS software than a senior exec at
Microsoft. Hey Matt.... there's a reason why Allchin is a multi-billionaire
with a senior exec position at one of the largest companies in the world and
why you're not.
I don't expect it would take much to know more about OS than nearly all
the senior execs at Microsoft.
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