Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts.
Register and secure your Critical IT infrastructure

Memory Monitoring

Geo SCADA Knowledge Base

Access vast amounts of technical know-how and pro tips from our community of Geo SCADA experts.

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • Home
  • Schneider Electric Community
  • Knowledge Center
  • Geo SCADA Knowledge Base
  • Memory Monitoring
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
Top Labels
Top Labels
  • Alphabetical
  • database 32
  • Web Server and Client 31
  • WebX 19
  • Request Form 18
  • Lists, Events & Alarms 16
  • ViewX 15
  • Application Programming 12
  • Setup 12
  • Telemetry 8
  • Events & Alarms 7
  • Lists 7
  • Mimic Graphics 7
  • Downloads 6
  • Support 5
  • IoT 5
  • SCADA 5
  • Geo SCADA Expert 5
  • Drivers and Communications 4
  • Security 4
  • DNP 3 3
  • IEC 61131-3 Logic 3
  • Trends and Historian 2
  • Virtual ViewX 2
  • Geo Scada 1
  • ClearSCADA 1
  • Templates and Instances 1
  • Releases 1
  • Maps and GIS 1
  • Mobile 1
  • Architectures 1
  • Tools & Resources 1
  • Privacy Policy 1
  • OPC-UA 1
  • Previous
  • 1 of 4
  • Next
Latest Blog Posts
  • OPC UA - Driver and Server
  • Requirements for Generating a Valid OPC UA Server Certificate
  • Load Events Using LoadRecord and LoadRecords
  • Geo SCADA Embedded Component Licenses
  • Geo SCADA 2023 Known Issues
Related Products
product field
Schneider Electric
EcoStruxure™ Geo SCADA Expert

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Anonymous user
Not applicable
‎2021-06-09 07:09 PM
0 Likes
0
859
  • Bookmark
  • Subscribe
  • Email to a Friend
  • Printer Friendly Page
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2021-06-09 07:09 PM

Memory Monitoring

Originally published on Geo SCADA Knowledge Base by Anonymous user | June 10, 2021 04:09 AM

📖 Home  Back  
The new 'Memory Usage' page in the General section breaks down the memory usage of the ClearSCADA server. This can be used with the snapshot facility to diagnose memory usage related problems.

A problem that could occur would be too much historic data being logged and the historian not being able to write it all to disk fast enough. This has the effect of keeping all the information in the memory of the server, and in this case you would expect to see the Raw section of memory usage to increase. A similar problem could be seen for the event journal.

This feature does not provide the definitive solution to memory problems. But it does give a general guide into the area of the product to investigate and is a good starting point.

memmonitoring.pngmemmonitoring.pngmemmonitoring.png

Ways to alleviate memory problems

  • Add more memory, which seems obvious, but getting to the 32bit limit (4GiB) should be a first start.

  • Use the '/3GB' switch in the Boot.ini file, which changes the kernel/userspace memory layout to 3GiB for user programs (like ClearSCADA) and 1GiB for the kernel. The default is a 2GiB/2GiB layout. See Using more than 2GB Memory in Windows or How to Set the /3GB Startup Switch in Windows

  • Lower the 'QueryRowLimit' registry key, which controls the maximum number of records that can be returned in a single query, this defaults to 1,000,000 and as such can use a very large amount of memory for a inefficient query.

  • Lower the Historic and Event Journal Cache settings. These determine the amount of memory allocated for storing historic and event journal records. While this data is normally stored on disk, the cache is used to search and process the data and it will remain in the cache until that memory is required for new searches etc. This provides better search performance as data does not need to be constantly loaded into and out of memory.


NOTE: Measuring System Memory Usage also discusses how DBServer's memory can be monitored in a system context.


Go: Home Back

Author

Biography

Anonymous user

Link copied. Please paste this link to share this article on your social media post.

  • Back to Blog
  • Newer Article
  • Older Article
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of