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Full Discussion: AIX 5.3, TL6 problem??
Operating Systems AIX AIX 5.3, TL6 problem?? Post 302221987 by bakunin on Tuesday 5th of August 2008 05:42:04 PM
Old 08-05-2008
If the performance is unexplainably bad it might be a monitoring software problem: i remember from the last project i worked at that there was a problem with the CA-Unicenter Oracle agent. There were combinations of Oracle patch levels and revisions of this agent which worked and most others caused severe performance problems as the agent hogged as many system resources as it could get over a few days. (Taking up several GB of memory for basically nothing was not unusual.)

Still this would be showing in vmstat and this is not the case. In fact yor machine looks pretty good there: the "fre" column is quite high (this is the memory which is outright available, in 4K-pages), the blocked-queue (b) is constantly zero and the "ec" column shows low values (this is the "entitled capacity consumed", the percentage of available processing resources which are really used - if it goes near 100 this indicates that the processor(s) are too small/few for the load).

Here is some literature i found when i was working on a performance optimization project involving Oracle on AIX 5.3:

http://publib16.boulder.ibm.com/pser...d/prftungd.pdf

http://www.redbooks.ibm.com/redbooks/pdfs/sg246478.pdf

http://www.redbooks.ibm.com/redbooks/pdfs/sg244810.pdf

System Performance Tuning, O'Reilly, 1990, ISBN 0-937175-60-9

Tuning for Oracle9i on AIX

AIX 5L Initial Tuning

I hope this helps.

bakunin
 

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uri_urn(3tcl)					    Tcl Uniform Resource Identifier Management					     uri_urn(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME
uri_urn - URI utilities, URN scheme SYNOPSIS
package require Tcl 8.2 package require uri::urn ?1.1.2? uri::urn::quote url uri::urn::unquote url _________________________________________________________________ DESCRIPTION
This package provides two commands to quote and unquote the disallowed characters for url using the urn scheme, registers the scheme with the package uri, and provides internal helpers which will be automatically used by the commands uri::split and uri::join of package uri to handle urls using the urn scheme. COMMANDS
uri::urn::quote url This command quotes the characters disallowed by the urn scheme (per RFC 2141 sec2.2) in the url and returns the modified url as its result. uri::urn::unquote url This commands performs the reverse of ::uri::urn::quote. It takes an urn url, removes the quoting from all disallowed characters, and returns the modified urls as its result. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uri of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
rfc 2141, uri, url, urn CATEGORY
Networking uri 1.1.2 uri_urn(3tcl)
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