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Slow performance across HPR/EE connections running on i686 platform.

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Hiper APAR LI73879 - slow performance on i686 Communication Server for Linux system(v6231) when data is traversing across HPR Enterprise Extender connection.


The Isolation Module driver allows the CS Linux drivers to be independent of the Linux distribution kernel layer. It provides a mechanism to call kernel routines that have kernel level specific entry points. The call to the timer clock needs to be set to 1/1000 of a second for the i686 platform only. This fix provides the proper check to set the correct clock interval.

Additional Symptoms:
VTAM sending multiple ARB Slowdown messages during data transfer regardless of the size of the data packets.
Download and install the efix for APAR LI73879. Installation instructions can be found in this Readme.

Related information

APAR package for LI73879
README file APAR LI73879

Document information

More support for: Communications Server for Linux

Software version: 6.2.3,,, 6.4,

Operating system(s): Linux Red Hat - xSeries, Linux SUSE - xSeries, Linux xSeries

Software edition: All Editions

Reference #: 1380468

Modified date: 17 February 2010

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