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SubjectRe: [RFC][PATCH] perf: sysfs type id
On 11/17/2010 12:01 PM, Peter Zijlstra wrote:
> On Wed, 2010-11-17 at 20:57 +0100, Peter Zijlstra wrote:
>>> How about a compromise position: all of the arch-specific events are
>>> exposed to user space via sysfs iff some CONFIG_* variable to set to
>>> true. Something like CONFIG_EXPOSE_ALL_HW_PERF_EVENTS_IN_SYSFS.
>>> This way you would only use all that memory when it's explicitly
>>> configured in.
>
> Another thing you could do is make all PMU drivers loadable modules
> (most of the infrastructure for that is present) and make the exhaustive
> list either a module parameter or another module extending the PMU
> driver.
>

That's an interesting approach. Maybe there could be a perf command
that would load the appropriate modules for all of the PMUs in the
system - "perf load-event-modules".

- Corey



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