RP/MSQ 5.01 (VMS) - Performance degradation on OVMS 8.x, Itanium respectively
(Doc ID 777385.1)
Last updated on JANUARY 16, 2023
Applies to:Oracle MessageQ - Version 4.0 and later
Information in this document applies to any platform.
Information in this document applies to any platform
DESCRIPTION: There is big performance degradation when running MessageQ, V5.01 on Itanium. There was a behavioral change that was made to the OVMS operating system when locking code or data contained within an image between 7.x and 8.x. The major reason of performance downgrade is $LKWSET implementation change in OpenVMS 8.x to lock the whole image containing the page. This problem cannot be resolved on OpenVMS 8.x Itanium because of the ELF standard, so this CR is a request for the fix to be made in MessageQ. CONFIGURATION: MessageQ 5.01 VMS
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