Application Performance Web Sequence Chart

The Web Sequence Chart as shown in the screenshot on the right displays measurements of our Python CDDB example running at The sequence diagram shows a complete calling sequence starting with a request in the HTTP server and ending in several requests for fetching track information for CDs.


  • Correlation of measurements over process and/or host limits
  • Associate context information to measurements (GOOD, FAILED, keys/values, etc)
  • Supports single- and multi-threaded environments
  • Minimal overhead per measurement (approximately 1-10 microseconds depending on the language binding and associated context)

Supported Operating Systems

  • AIX® 5.3 or higher for Power (32/64bit) architectures.
  • Linux® for x86 (32bit), amd64 (32/64bit) and ARM (32bit) architectures.
  • Oracle Solaris® for x86 (32bit), amd64 (32/64bit), sparc (32/64bit) architecture.
  • Windows XP® for x86 (32bit) and Windows 7® for x86 (32bit) and amd64 (64bit) architectures

Programming Language Support

  • C/C++
  • Java
  • C#
  • Python
  • Shell (korn-shell compatible)