[lttng-dev] lttng: How to enable larger buffers?

[Sam Bradshaw (sbradshaw)]

Hello,

I'm trying to use lttng tools to identify some block stack latencies.  I'm tracing
syscall, softirq_*, and block_* kernel entry points using the latest 2.0 lttng on
RHEL 6.3 with a 3.6.6 kernel.

When I 'lttng view' the trace, I get all sorts of messages like:

"[warning] Tracer discarded XXXX events between <timestamp1> and <timestamp2>.  You
should consider recording a new trace with larger buffers or with fewer events 
enabled."

How/where do I modify the code to enable larger buffers?  Its not obvious from any
of the documentation I could find or a superficial code inspection.

Thanks,
-Sam