Oracle-L: RE: CPU Problem

From: Denham Eva <EvaD_at_TFMC.co.za>
Date: Thu, 07 Nov 2002 21:58:24 -0800
Message-ID: <F001.004FE8E4.20021107215824@fatcity.com>

Cary,

>From the league of learners and eager apprentices. We eagerly devour any repetition on your part or that matter any other of the guru's. :) But seriously I for one don't have an in house guru to whom I can lookup to for gems of wisdom and guidance. I am sure I am not alone in this predicament. So anything is far better than nothing!

Thanks for your contributions - all of you! Denham

-----Original Message-----
Sent: Friday, November 08, 2002 12:44 AM To: Multiple recipients of list ORACLE-L

SQL that does excessively many reads from memory. Trace it. Read "Why you should focus on LIOs instead of PIOs" at www.hotsos.com/catalog.

My apologies to the list for repeating myself like a broken record. :)

Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com

Upcoming events:

- Hotsos Clinic, Dec 9-11 Honolulu
- 2003 Hotsos Symposium on OracleR System Performance, Feb 9-12 Dallas
- Jonathan Lewis' Optimising Oracle, Nov 19-21 Dallas

-----Original Message-----
Alavi
Sent: Thursday, November 07, 2002 3:04 PM To: Multiple recipients of list ORACLE-L

Hi List,

We are facing with some CPU problem (cpu 100% usage!), Just want to get some
idea from you guys, any clue what can cause this problem: Here is a copy of some part of ora.ini
This happen during usage of some long query with subquery, this can be the
cause of problem or just some wrong setting in ini file. I appreciate your help.

compatible = 8.1.7.4

db_block_buffers = 10000
db_block_lru_latches = 4
db_block_size = 8192
db_file_multiblock_read_count = 16

hash_area_size = 2048000
java_pool_size = 20971520
large_pool_size = 614400

log_buffer = 262144
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
max_enabled_roles = 30

open_cursors = 300
optimizer_index_caching = 90
optimizer_index_cost_adj = 35
os_authent_prefix = ""
processes = 100
session_cached_cursors = 100
shared_pool_size = 134217728
sort_area_retained_size = 262144
sort_area_size = 262144
timed_statistics = TRUE

Hamid Alavi
Office 818 737-0526
Cell 818 416-5095

Confidentiality Statement
The information contained in this message and any attachments is intended only for the use of the individual or entity to which it is addressed, and may contain information that is PRIVILEGED, CONFIDENTIAL and exempt from disclosure under applicable law. If you have received this message in error, you are prohibited from copying, distributing, or

using the information. Please contact the sender immediately by return e-mail and delete the original message from your system.

===================== End Confidentiality Statement
=====================

--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Hamid Alavi
INET: hamid.alavi_at_quovadx.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).

--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Cary Millsap
INET: cary.millsap_at_hotsos.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------

DISCLAIMER
This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. TFMC, its holding company, and any of its subsidiaries each reserve the right to monitor and manage all e-mail communications through its networks.

Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them to be the views of any such entity.

This e-mail message has been scanned for Viruses and Content and cleared by MailMarshal

For more information please visit www.marshalsoftware.com

--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Denham Eva
INET: EvaD_at_TFMC.co.za

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------