https://community.dynatrace.com/t5/Open-Q-A/How-does-the-High-Memory-Usage-detection-behave-with-Page-Fault/m-p/304149#M40193 <P class="">Hi Dynatrace community Team,</P><P>I would like to understand the expected behavior of the <STRONG>High Memory Usage on Host</STRONG> detection when using custom page fault thresholds.</P><P>Currently, we have configured:</P><UL><LI><STRONG>Memory usage threshold:</STRONG> 80%</LI><LI><STRONG>Windows page fault threshold:</STRONG> 100 faults/sec</LI><LI><STRONG>Linux/Unix page fault threshold:</STRONG> 20 faults/sec</LI><LI>Detection mode: <STRONG>Based on custom settings</STRONG></LI></UL><P>The configuration states that an alert is generated when <STRONG>both memory usage and memory page fault rate thresholds are exceeded</STRONG>.</P><P class="">Specifically, I would like to understand whether <STRONG>both conditions must be continuously exceeded for the defined number of samples</STRONG> before Dynatrace generates the problem.</P><P>Also, could you please clarify how the <STRONG>“defined amount of samples”</STRONG> is evaluated for the page fault rate?</P><P>Thanks in advance for your clarification.</P><P>&nbsp;</P> Mon, 07 Sep 2026 12:24:17 GMT Sohel_Rashid 2026-09-07T12:24:17Z https://community.dynatrace.com/t5/Open-Q-A/How-does-the-High-Memory-Usage-detection-behave-with-Page-Fault/m-p/304149#M40193 <P class="">Hi Dynatrace community Team,</P><P>I would like to understand the expected behavior of the <STRONG>High Memory Usage on Host</STRONG> detection when using custom page fault thresholds.</P><P>Currently, we have configured:</P><UL><LI><STRONG>Memory usage threshold:</STRONG> 80%</LI><LI><STRONG>Windows page fault threshold:</STRONG> 100 faults/sec</LI><LI><STRONG>Linux/Unix page fault threshold:</STRONG> 20 faults/sec</LI><LI>Detection mode: <STRONG>Based on custom settings</STRONG></LI></UL><P>The configuration states that an alert is generated when <STRONG>both memory usage and memory page fault rate thresholds are exceeded</STRONG>.</P><P class="">Specifically, I would like to understand whether <STRONG>both conditions must be continuously exceeded for the defined number of samples</STRONG> before Dynatrace generates the problem.</P><P>Also, could you please clarify how the <STRONG>“defined amount of samples”</STRONG> is evaluated for the page fault rate?</P><P>Thanks in advance for your clarification.</P><P>&nbsp;</P> Mon, 07 Sep 2026 12:24:17 GMT https://community.dynatrace.com/t5/Open-Q-A/How-does-the-High-Memory-Usage-detection-behave-with-Page-Fault/m-p/304149#M40193 Sohel_Rashid 2026-09-07T12:24:17Z