Problems with the MOUNT system service

[Christopher Blackburn]

Thanks Volker Halle, I will give that a try.

[Ian Miller.]

The quota, pages reserved in page files and pages used in page files are all different things. Increasing a quota does not mean processes will definately use more pages in page files

[Christopher Blackburn]

Many thanks for all the replies/suggestions. Increasing the process working set quota has resolved the problem and the SYS$MOUNT service can now be called successfully.

[Volker Halle]

Christopher,

the V8.2 LKWSET change has been restored to the V7.3-2 behaviour in patch VMS82A_SYS-V0500 released today.

Volker.

5.2.1 Performance Degradation

5.2.1.1 Problem Description:

In V8.2, a behavioral change was made to OpenVMS when
locking pages into the working set. If the virtual
address range requested fell within an image, then the
entire image was locked into the working set. For
applications that frequently perform this operation, this
behavioral change can result in a severe performance
degradation.

The behavior of the system services to lock and unlock
the working set is being restored to the prior V7.3-2
behavior of locking only the pages requested.

Applications that need to lock and unlock the entire
image into the working set should use the
LIB$LOCK_IMAGEand LIB$UNLOCK_IMAGE routines which were
provided with OpenVMS V8.2.