From mboxrd@z Thu Jan  1 00:00:00 1970
From: lichanjuan04@gmail.com (Li, Chanjuan)
Date: Thu, 28 Jan 2010 11:35:32 +0800
Subject: [ltt-dev] how to use lttng  in large workload with long time
Message-ID: <1264649732.3856.74.camel@licj-pc>

hi,all:
    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
advance!




best regards

lily