1. Linux Trace Toolkit - tools LTT is a kernel event tracer with low overhead. LTT provides it's user with all the information required to reconstruct a system's behavior during a certain period of time. One can know exactly the dynamics of a system. Why do certain synchronization problems occur? What exactly happens to an application when a packet is received for it? Overall, where do all the applications that I use pass their time? Where are the I/O latencies in a given application? etc. LTT requires a modified linux kernel that enables events to be logged. This package contains only the user-level tools for collecting and analysing the trace data. The kernel patch is available in the kernel-patch-ltt package. From Debian 3.0r0 APT