A fix is available
APAR status
Closed as new function.
Error description
A high CPU consumption noticed after migration from TWSz V8.30 to V8.5.1. when the IA time is changed for an occurrence. During the analysis of provided documents and MCP code, the lab could identify a module (EQQMC3IA) introduced by TWSz 8.5.0 that is called by Occurrence Change routine when the IA time is changed for an occurrence, and found out that this new module strongly affect performances in this scenario. To improve performance, the module EQQMC3IA has to be restructured.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: ALL TWS for z/OS 8.5.0 and 8.5.1 * * USERs. * * * * FUNCTION=MCP * **************************************************************** * PROBLEM DESCRIPTION: Very low performance processing * * is observed when executing the * * manual occurrence Input Arrival Time * * change via Modify Current Plan. * **************************************************************** * RECOMMENDATION: APPLY THE PTF FIXING THIS APAR * **************************************************************** Very low performance processing is observed when executing the manual occurrence Input Arrival Time change via Modify Current Plan.
Problem conclusion
Temporary fix
Comments
This flow has been completely redesigned by this apar to remove many unuseful CP VSAM scans. The loop exit condition in the CP reading has been corrected and the old sequential access to search for possible records CP3Q has been replaced by an access by key.
APAR Information
APAR number
PM44176
Reported component name
TIV WRKLD SCHD
Reported component ID
5697WSZ01
Reported release
512
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2011-07-21
Closed date
2011-08-04
Last modified date
2016-04-22
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK70474 UK70475
Modules/Macros
EQQMC3IA EQQMC3RS
Fix information
Fixed component name
TIV WRKLD SCHD
Fixed component ID
5697WSZ01
Applicable component levels
R502 PSY UK70474
UP11/09/20 P F109
R512 PSY UK70475
UP11/09/20 P F109
R602 PSY UK70476
UP11/09/22 P F109
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
22 April 2016