The Eclipse Tracing and Monitoring Framework is the next generation trace viewer and analyzer. Designed to use the same efficient algorithms as the LTTV viewer (part of the LTTng project), it also aims at supporting the merging of heterogenous traces.
http://wiki.eclipse.org/index.php/Linux_Tools_Project/LTTng/User_Guide
Videos of the plugin can be found here:
http://lttng.org/eclipse
You can quickly try the plugin by using the LTTng demo virtual machine:
http://lttng.org/content/test-virtual-machines