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Full Discussion: AIX 5.3 performance problems
Operating Systems AIX AIX 5.3 performance problems Post 302590407 by petervg on Monday 16th of January 2012 05:13:01 AM
Old 01-16-2012
AIX 5.3 performance problems

Hello,

I encounter some performance issues on my AIX 5.3 server running in a LPAR on a P520. How do I investigate performance issues in AIX. Is there any kind of procedure that takes me to the steps to investigate my server and find the sub systems that is causing the issues?

The performance issued encountered is that user logging in to the server with telnet encounter hiccups in the screen updates. They use a text based application and sometimes the screen updates do not follow the keyboard input immediately. It can take up to 5 seconds for the screen to update. To be more precise: When they hit F1-F2-F3-F4 it sometimes stays at screen F1 and then after some delay it will step through screens F2, F3 and F4 . At other times the application/system will just quickly step through the screen when the Function keys are pressed.

At first glance I cannot find a related CPU, Disk, memory or network problem but I'm not knowledgable enough to to know for sure.

So is there any performance investigation procedure for AIX?
 

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DMXAddScreen(3X)														  DMXAddScreen(3X)

NAME
DMXAddScreen - attach a new back-end screen SYNOPSIS
#include <X11/extensions/dmxext.h> Bool DMXAddScreen(Display *dpy, const char *displayName, unsigned int mask, DMXScreenAttributes *attr, int *screen); DESCRIPTION
DMXAddScreen() attaches a back-end screen to the Xdmx(1) server, in place of the previously detached back-end server specified by screen. displayName is the name of the new back-end display, mask specifies the field in attr that are active, and screen returns the new Xdmx(1) screen number for the attached screen. The information stored in mask and attr is identical to that used by the DMXChangeScreenAttributes(3X) and DMXGetScreenAttribues(3X) functions. RETURN VALUE
DMXAddScreen() will return True if the screen was successfully attached, and False otherwise. False will be returned if the -addremove- screens command line option was not specified on the Xdmx(1) command line, the input value of screen is out of range, screen is not cur- rently detached, displayName cannot be opened, has unexpected visuals, or has characteristics that do not match the previously detached screen. DMXAddScreen() can generate BadLength, BadAlloc, and BadValue errors. NOTES
Attributes that are not specified will default to 0. This may lead to unintended results. Unlike other functions in the DMX(3X) API, this function uses screen for both input and output. SEE ALSO
DMXRemoveScreen(3X), DMXChangeScreenAttributes(3X), DMXGetScreenAttributes(3X), DMX(3X), Xdmx(1) XFree86 Version 4.7.0 DMXAddScreen(3X)
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