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Groups > comp.os.linux.development.apps > #724

Re: how to debug the kernel (process scheduling)

From Lew Pitcher <lew.pitcher@digitalfreehold.ca>
Subject Re: how to debug the kernel (process scheduling)
Newsgroups comp.os.linux.development.apps
References <d194b9d2-cfa1-4cc1-9016-2f39c057f59a@googlegroups.com>
Organization The Pitcher Digital Freehold
Message-ID <LCP8v.1064701$2N5.103753@fx05.iad> (permalink)
Date 2014-05-02 12:22 -0400

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On Thursday 01 May 2014 22:56, in
comp.os.linux.development.apps, "457204657@qq.com" <457204657@qq.com>
wrote:

> I have a problem in how to debug the processes scheduling. First, I use
> the printk, the time slice is 50ms, so I can not see the message of print
> clearly. Second, minix v3.1.0 does not support serail output and kgdb.
> 
> I do the problems in chapter2 of "operating system Design and
> Implementation" . 45. Modify the MINIX 3 scheduler to keep track of how
> much CPU time each user process has had recently. When no task or server
> wants to run, pick the user process that has had the smallest share of the
> CPU.

Your question is, apparently, about the internals of the Minix (v3) kernel,
and not about the development of applications under Linux.

You probably want to ask your question of a group dedicated to Minix issues,
rather than here in comp.os.LINUX.DEVELOPMENT.APPS.

Why not try the official Minix support group, which is (IIRC) hosted by
Google Groups: https://groups.google.com/forum/#!forum/Minix3

HTH
-- 
Lew Pitcher
"In Skills, We Trust"
PGP public key available upon request

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how to debug the kernel (process scheduling) 457204657@qq.com - 2014-05-01 19:56 -0700
  Re: how to debug the kernel (process scheduling) Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2014-05-02 12:22 -0400

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