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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LEARN ABOUT DEBIAN
urn-scheme
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)