YourKit .NET Profiler

CPU profiling

YourKit .NET Profiler utilizes many .NET and Windows features to obtain information about methods and times with the minimum overhead. CPU profiles can be visualized as call trees or lists of hot spots.

Smart what if feature allows you to evaluate performance gains of the supposed optimizations without re-profiling the application.

Memory profiling

Profiler visualizes object heap and allows traversing of object graph in any direction. Objects properties are visualized in convenient form. Profiler chooses the best way to show you a content of a Dictionary or a String value.

For each object you can see how much memory it retains, and what happens when particular reference in object graph does not exist. This saves your time, and lets to estimate the expected memory leak fix without changing the code.

Flame graphs

CPU flame graph is an efficient way to visualize application performance, which allows to find performance bottlenecks quickly and easily.

Database queries and web requests

Profiler shows slow SQL queries and ASPX requests, to help you find performance bottlenecks.

Popular databases like MongoDB and Cassandra are supported.

Comparing CPU and memory snapshots

Track how changes in the code affect the performance of your application.

YourKit .NET Profiler can compare performance and memory snapshots and export comparison reports in different formats.

Performance inspections

20+ comprehensive inspections are waiting to make your code faster and more efficient.

Profiler knows a lot about typical issues in .NET applications and automatically finds them. You can easily find duplicated objects, non-closed database connections, file and sockets. Profiler shows inefficient collections and I/O operations.

Find thread synchronization issues

YourKit .NET Profiler visualizes threads activity. You can easily find blocked threads and understand the reasons.

It is possible to combine thread states with HTTP requests and SQL queries to get the full picture how the requests are processed by your applications.

Telemetry and performance charts

The profiler provides a user-friendly and customizable interface for monitoring CPU, memory, GC activity and other performance data.

Exception profiling

Massive exception throwing is a common but often hidden performance problem. YourKit .NET Profiler immediately finds all the places where exception are being thrown.

Profile remote applications

YourKit .NET Profiler is equipped with special tools to enable profiling on remote machines. When you need to profile a remote server, the profiler will help to create an SSH tunnel and connect to the remote application. Remote profiling will be as easy as the local one.

Deobfuscate the code on the fly

YourKit .NET Profiler is able to restores original class, method and field names of applications obfuscated with Dotfuscator.

You control the overhead

You have full control over the profiling overhead. The profiler provides a fine grained set of options to precisely regulate the amount of data you want to collect. The profiling overhead can be so low, that you will be able to profile your application in the production.

Export to external formats and open API

The profiling results can be exported to numerous formats. You can share the results with colleagues by email, publish them on the web and analysis in third-party applications.

The profiler API allows you to manage profiling modes and capture snapshots right from your .NET code.

Command line interface

Command line tools allow to perform many profiling tasks without using the UI. Integrate the profiler into a continuous integration process and automate performance monitoring.