I found this in the machine notes, which may describe the problem that you are having:
2. Support maximum shared memory
The database server can access shared-memory larger than two gigabytes
on Windows. However, you must enable this feature with an entry in the
Windows boot file.
To add the entry, edit the boot.ini file (located in the top level, or
root directory). You can either add a new boot option or use the currently
existing boot option. To enable support for more than two gigabytes, add
the following text to the end of the boot line:
/3GB
-----Original Message-----
From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of Mike Walker
Sent: Sunday, May 29, 2016 8:24 AM
To: abderrafi212@gmail.com; informix-list@iiug.org
Subject: RE: Informix Memory Problem in Windows 2008 bits
Are there any messages in the Informix log on startup to show that SHMVIRTSIZE was changed, and why the setting may have been overridden?
-----Original Message-----
From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of abderrafi212@gmail.com
Sent: Sunday, May 29, 2016 7:46 AM
To: informix-list@iiug.org
Subject: Informix Memory Problem in Windows 2008 bits
Hi, we have a performance issue in our production environement, when we've checked the online log we found that informix is allocating each time memory segment of 82223 kb to 82260 kb and so on, so we have change onconfig parameters to :
SHMVIRTSIZE TO 20000000
SHMADD TO 1000000
SHMTOTAL TO 25000000
our server is a Window 2008 64 bits with 53 GB and 16 cpu, but we restarted the informix server we have check the memory of the server and its consuming just 1.8 GB of resident memory even if we gave it 20 Gb in onconfig, so why Informix does not reserve the memory I gave in the onconfig wich is
20000000.
is there any problem with window 2008 64 bits, my Informix is 11.70 TC5
Thanks
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