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2004/11/16 Linux Trace Toolkit

Sometimes you want to trace a specific process, and strace does that nicely. But other times you may need to see more about the whole system as it reacts with your program. That's what LTT is for. As the docs explain:

That being said, these tools often only give a snapshot of the system. You
are rarely able to know exactly what happens in a system at every moment in
time. You can only try to know by polling faster, with the perverted effects
of such a technique.

LTT fills this gap by providing its 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 spend their time? Where are the
I/O latencies in a given application? etc.

Linux Trace Toolkit.

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