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Retrace: APM+ Overview

Stackify's APM+ tool is a powerful new feature and serves as a core part of our Application Monitoring service. The feature implements byte code inspection of ASP.NET apps, giving you method-level telemetry on CLR code at run time. Use this tool to get instant insight on:

  • Start time / end time and HTTP status codes
  • HttpHandlers and HttpModules utilized in the IIS pipeline
  • Call Stack of key methods / pipeline execution steps, i.e. controller execution, viewing compilation, and viewing rendering
  • MS SQL database calls, including the query text
  • Web service calls, including the requested URL
  • Redis cache calls
  • Request Queuing & Blocked - Estimations in delays of processing the request. Queuing being time before the request is started and blocked is time it was delayed after it was started.
  • Call Stack and timings of other methods that are “opted in” for profiling. (To see how to add custom methods to be profiled, click here)

Once the .Net Profiler has been configured and enabled, the Stackify Agent will be able to facilitate data collection and push that data to your Stackify account. To view APM+ data, go to the Monitoring Tab>Web Apps and open the App Dashboard for an IIS Web App that has profiling enabled. Once in the App Dashboard, click on the APM+ tab.

Using the APM+ Tab in the App Dashboard

When you click on the the Performance (APM+) in an App Dashboard, you will be able to view a breakdown of your average page load times by components that make up your app. Quickly see if database queries, caching, queuing or other parts of your stack are causing app slowness. You can also click on "User Satisfaction" to view a chart of Fast, Sluggish, Slow, and Failed requests based on the goal you set for response times.

Overview

Overview

The Overview tab will give you a quick look into the top 5 Requested Actions, the top 5 Queries, and the top 5 external web services, all sorted by the percentage of time it accounted for. To the right of each "Top 5" table is a chart to visualize the top web requests, top queries, and top external services. At a glance you will be able to see where bottlenecks are occurring, where web requests are spending the most time, how many total calls are being made, and so on. Click on any requested action or SQL query link in the tables to see a more detailed performance view for that requested action or query.

There are a number of different views you can select to help you investigate app performance issues. These different views include By Request, SQL Queries, Web Services, and Servers.

Monitoring and Alerting on Performance

You can also monitor key URLs and SQL Queries using Stackify APM+. For configuration guidance, see the documentation on Configuring App Monitors.

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