Re: [PATCH 0/4] perf tools: Persistent events, changes for perf toolintegration

From: Borislav Petkov
Date: Fri May 31 2013 - 08:24:40 EST


On Fri, May 31, 2013 at 02:07:20PM +0200, Ingo Molnar wrote:
> For that I'd like to create a persistent event that just keeps
> running, and to which I can occasionally attach to read-only to see
> what's going on and maybe attach to it read-write to drain the trace
> entries. I.e. basically a global trace buffer. How do I achieve that
> with this new tooling?

I have a patch which adds persistent_events= kernel command line param
and uses the same syntax as trace_event=. Rostedt has seen it already, I
need to incorporate his comments and send it out next week.

Thanks.
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