Filters

Performance Profiler contains a number of filters that allow slicing and dicing profiling data by various conditions. The result of filter's work is always a set of time intervals or point events selected by a specific condition.

Filters are the main analysis instrument in Performance Profiler.

After the filter is applied, it becomes highlighted in the Performance Profiler window. Filter name is changed to the currently selected filter value.

Filter Types

The list of filters in the integrated viewer is identical to the one in the standalone Timeline Viewer. Therefore, if you need more information on how a particular filter works, refer to the corresponding section of the Analyzing Timeline Profiling Results | Filters chapter:

• UI Freeze
  Time intervals where the application is unable to respond to user input.
• Thread State
  Filter time intervals by thread state (Running, Waiting).
• Subsystems
  Subsystems are used to quickly evaluate how time in a particular call tree is distributed among various components: user and system code, WPF, LINQ, collections, strings, and more.
• Events
  The group of filters which represent particular events related to the profiled application.
  • Memory Allocation
    Memory allocation point events.
  • Native Memory Allocation
    Native memory allocation point events.
  • Exceptions
    Exception point events.
  • Garbage Collection
    Time intervals where garbage collection is performed.
  • File Operations
    Time intervals where read/write operations with disk or system cache are performed.
  • JIT Compilation
    Time intervals where JIT compilation is performed.
  • SQL Queries
    Time intervals where a client communicates with an SQL server.
  • HTTP Requests
    Time intervals where a server processes incoming HTTP requests.