[ltt-dev] how to use lttng in large workload with long time

Li, Chanjuan lichanjuan04 at gmail.com
Wed Jan 27 22:35:32 EST 2010

    Now I want to use lttng to analyse performance of a MPI application
on wether forecast. The application will run about 2h. When I use lttng
to collect events, it generates 50G results . It is hard to analyse with
such huge data. So I want to reduce the events to be recorded instead of
ltt-armall events.
I try ltt-armtap, but it does not work because there is no /proc/ltt in
my machine. In addtion, I read the LTTng manual, there is a flight
record mode. I want to know that could help in such context. thanks in

best regards


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