PM08491: PERFORMANCE OF OUTBOUND CHANNELS ON UDP CHANNEL FRAMEWORK

Fixes are available

APAR status

Closed as program error.

Error description

The Sametime AV Packet Switcher is using the WebSphere
Application Server UDP channel framework as transport for
receiving and sending data out. When sending out packets the
CPU is getting exhausted because it is spending time in the
monitors.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of UDP Channel in the IBM         *
*                  WebSphere Application Server V7.0 and v8.0  *
****************************************************************
* PROBLEM DESCRIPTION: The UDP Channel runs inefficiently      *
*                      when multiple threads are used to       *
*                      process UDP packets.                    *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Thread synchronization issues in the UDP Channel were causing
performance issues.

Problem conclusion

Removed some of the synchronization points in the code to
allow multiple threads to run concurrently.

The fix for this APAR is currently targeted for inclusion in
fix packs 7.0.0.19 and 8.0.0.1.  Please refer to the
Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Comments

APAR Information

APAR number
PM08491
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-02-24
Closed date
2011-06-03
Last modified date
2011-06-03

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R700 PSY
UP
R800 PSY
UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
24 October 2021

Tips

PM08491: PERFORMANCE OF OUTBOUND CHANNELS ON UDP CHANNEL FRAMEWORK

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R700 PSY

R800 PSY

Document Information

Share your feedback

Need support?