Splunk® IT Service Intelligence


This documentation does not apply to the most recent version of Splunk® IT Service Intelligence. For documentation on the most recent version, go to the latest release.

ITSI module performance and sizing guidelines

This topic discusses performance and sizing guidelines for the ITSI modules.

Performance requirements

ITSI modules do not have specific performance and sizing requirements. As they correlate data that ITSI receives, focus on configuring the forwarding and indexing tiers of your ITSI deployment to send and receive data as quickly as possible.

Of particular importance in providing the best performance for the module is confirming that the add-ons that provide the data for the module have been properly scaled. While the only performance overhead in this regard is the universal forwarder, you must understand how network, disk, and performance factors can impact data collection. Network, disk, or CPU congestion can result in the late arrival of data. This manifests itself in being unable to locate host data to define entities or services.

Typical daily indexing volume

The following table details the typical rate of data that the Splunk Add-ons for Windows and Unix and Linux collect per host, per day for correlation with the ITSI modules. The actual amount of data that the add-ons collect might vary depending on several factors including the role and amount of computing activity of each host.

Index Windows Unix and Linux
wineventlog 27MB N/A
windows 2MB N/A
perfmon 28MB N/A
os N/A 36MB
firedalerts N/A 24MB
Last modified on 28 April, 2023
ITSI module visualizations   About the Application Server Module

This documentation applies to the following versions of Splunk® IT Service Intelligence: 4.11.0, 4.11.1, 4.11.2, 4.11.3, 4.11.4, 4.11.5, 4.11.6, 4.12.0 Cloud only, 4.12.1 Cloud only, 4.12.2 Cloud only, 4.13.0, 4.13.1, 4.13.2, 4.13.3, 4.14.0 Cloud only, 4.14.1 Cloud only, 4.14.2 Cloud only, 4.15.0, 4.15.1, 4.15.2, 4.15.3, 4.16.0 Cloud only, 4.17.0, 4.17.1, 4.18.0, 4.18.1

Was this topic useful?

You must be logged into splunk.com in order to post comments. Log in now.

Please try to keep this discussion focused on the content covered in this documentation topic. If you have a more general question about Splunk functionality or are experiencing a difficulty with Splunk, consider posting a question to Splunkbase Answers.

0 out of 1000 Characters