Re: CPU Pegged at 100%

You can see process threads in NT Performance Monitor.

Igor Neyman, OCP DBA
ineyman_at_perceptron.com

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Tuesday, April 30, 2002 8:28 AM

> Do you know how to see the threads in NT?
>
> Yechiel Adar
> Mehish
> ----- Original Message -----
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Sent: Monday, April 29, 2002 8:24 PM
>
>
> > oracle.exe spawns out threads, which you will not see running in the
task
> > manager.
> > Each DBWR process then will be a thread of oracle.exe.
> >
> > RF
> >
> > -----Original Message-----
> > Sent: Monday, April 29, 2002 1:40 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > I have 5 DBWR processes according to INIT.ORA on NT .. I see them
on
> > V$SESSION but There is only one process ORACLE.EXE in the processes list
> of
> > NT still.
> > I do not understand the behaviour of ORacle on NT neither the
Oracle
> I
> > think.
> >
> >
> >
> >
> > Bunyamin K. Karadeniz
> > Oracle DBA / Developer
> > Civilian IT Department
> > Havelsan A.S. Eskisehir yolu
> > 7.km Ankara Turkey
> > Phone: +90 312 2873565 / 1217
> > Mobile : +90 535 3357729
> >
> > ----- Original Message -----
> > To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> > Sent: Monday, April 29, 2002 5:53 PM
> >
> >
> > > On Mon, Apr 29, 2002 at 05:59:18AM -0800, Thomas Day wrote:
> > > >
> > > > I don't think that increasing the db_writer_processes will help. NT
> is,
> > as
> > > > noted elsewhere, multi-threaded. Increasing the db_writer_processes
> > will
> > > > not start a new process.
> > > >
> > > > My experience with Oracle on NT is that when the CPU is pegged at
100%
> > it
> > > > is because the OS is constantly writing and fetching the contents of
> RAM
> > to
> > > > the swapfile.
> > > >
> > > --
> > >
> > > If this is the case for this problem, we have found that changing
> > > the location of the os paging file onto another disk and controller
> > > can help performance. See your windows clicking friends to find
> > > out where to click. It is somewhere under my computer...read
> > > the man page on it ;)
> > > ===============================================================
> > > Ray Stell stellr_at_vt.edu (540) 231-4109 KE4TJC 28^D
> > > --
> > > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > > --
> > > Author: Ray Stell
> > > INET: stellr_at_cns.vt.edu
> > >
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> > --
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> > --
> > Author: Bunyamin K. Karadeniz
> > INET: bunyamink_at_havelsan.com.tr
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Yechiel Adar
> INET: adaryechiel_at_hotmail.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Igor Neyman
  INET: ineyman_at_perceptron.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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To REMOVE yourself from this mailing list, send an E-Mail message
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(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).