Re: [PATCH 4/5] perf record: mmap output file - v5

[Ingo Molnar]

* David Ahern <dsahern@xxxxxxxxx> wrote:

> > Dunno.. it _should_ all work. Try it and see what it does.. Once the 
> > events are bigger than a page things might get 'interesting' though.

Which could be the case with call-graph recording, right?

> one option here is not allow page faults and system wide system calls. 
> system wide tracing needs mmap; page faults for a task can use write(). 
> I left that option in case something like this came up.

So maybe splice() sounds like the right long term solution after all? :-/

Thanks,

	Ingo
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