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Re: Preemption Control

From: Yong Huang <yong321_at_yahoo.com>
Date: 10 Jan 2002 20:47:25 -0800
Message-ID: <b3cb12d6.0201102047.40d18513@posting.google.com>


I don't know the answer to your question and I don't have access to AIX. Why not type man -k preemption on AIX to see if you get anything?

BTW, schedctl_* are library functions, not syscalls. Knowing this is important so that you know you can't run truss on an Oracle process expecting to see schedctl_* calls (like truss -t schedctl_init -p 12345). But I'm not sure what system call should be expected from truss? Maybe a flag in crash utility u -f or p -f command can tell us?

Yong Huang
yong321_at_yahoo.com

medawsonjr_at_yahoo.com (El Toro) wrote in message news:<2e1cd2b.0201090026.2c828d4_at_posting.google.com>...
> HP-UX and Solaris offer system call mechanisms by which a calling
> process can hint to the kernel to NOT preempt it (or to lengthen
> its time slice). This is commonly referred to as preemption control.
>
> It's provided in HP-UX via mpctl() and in Solaris via schedctl_*()
> calls.
>
> Is this available via AIX? Oracle can make use of this facility if
> it finds that it's available on the OS in question, and I want to see
> if such an option exists on my AIX database.
Received on Thu Jan 10 2002 - 22:47:25 CST

Original text of this message

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