Meghraj Thakkar - Quest Oracle 9i on Windows NT/2000
http://www.oracle.com/pls/oow/oow_user.show_public?p_event=6&p_type=session&p_id=11958
-
Whitepaper:
http://www.oracle.com/pls/oow/oow_user.download?p_event_id=6&p_file=W11958.zip
(expands to "105.doc")
| Some parts of this paper have been extracted from the books
| "Teach Yourself Oracle8i on Windows NT in 24 Hours" by Megh Thakkar
| (ISBN: 0672315785) and
| "e-Business for the Oracle DBA" by Megh Thakkar (ISBN: 0672321475)
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Presentation;
http://www.oracle.com/pls/oow/oow_user.download?p_event_id=6&p_file=P11958.zip
(expands to "105.pps")
ORACLE-L Digest -- Volume 2002, Number 120
> --
>
> From: [EMAIL PROTECTED]
> Date: Mon, 29 Apr 2002 11:29:55 -0700
> Subject: RE: CPU Pegged at 100%
>
> Thomas,
>
> If you could locate that paper, we would all be grateful.
>
> I have been unable to find it.
>
> Thanks,
>
> Jared
>
>
>
>
>
> Thomas Day <[EMAIL PROTECTED]>
> Sent by: [EMAIL PROTECTED]
> 04/29/2002 06:59 AM
> Please respond to ORACLE-L
>
>
> To: Multiple recipients of list ORACLE-L
> <[EMAIL PROTECTED]> cc: Subject:RE: CPU Pegged at 100%
>
>
>
> 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.
>
> Meghraj Thakkar from Quest has a good paper on running Oracle 9i on
> Windows
> NT/2000. A search on Yahoo will probably find it for you. I don't have
> the URL.
>
> The following points are taken from that paper.
>
> Decrease the size of SGA so that all of the SGA and the OS will fit in
> physical RAM. This will decrease the use of the swapfile.
>
> Choose "Maximum throughput for network applications" in the control panel.
> Oracle does it's own memory management. Trying to let Windows memory
> manage on top of that adds to swapfile use.
>
>
> --
>
> From the Services panel, disable all unneeded services. This includes
>
> You should not touch alerter, browser, eventlog, messenger, Oracle
> Service, Oracle TNSListener, Server, spooler and workstation.
>
> If you have 9i, set PRE_PAGE_SGA = TRUE. This tells Windows to keep the
> SGA in physical memory (RAM) as much as possible. It will get paged out
> --- that's the nature of Windows --- but not as often.
>
> Windows does IO buffering. However, Oracle does its own IO buffering
> apart from the OS. Performance can be increased and more of the RAM made
> available to the SGA by using REGEDIT and editing the registry. Go to
> \HKEY_LOCAL_MACHINE\Control\SessionManager\MemoryManagement and setting
> LargeSystemCache to 0. Be sure to back up the Registry before editing.
>
> HTH
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Thomas Day
> INET: [EMAIL PROTECTED]
>
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