Kernel Tracing with LTTng on Ubuntu Maverick

francis-giraldeau writes: Linux Tracing Toolkit (LTTng) provides high performance kernel tracing for Linux. This is the killer app for system level debugging and performance tuning. It's now easier to install than ever with packages released for Ubuntu Maverick. The short introduction to kernel tracing shows how to interpret a simple kernel trace and relate it to strace. I would like to ask slashdot readers about what they would expect as features for kernel tracing analysis tool, because I'm starting my PhD on this topic and looking for ideas. Also, I wonder why LTTng is not mainline yet, despite the fact that it's highly valuable. Will Linus Torvalds see the light for 2011?