Re: [RFC][PATCH v2 06/11] perf: core, export pmus via sysfs

[Peter Zijlstra]

On Thu, 2010-05-20 at 16:12 -0700, Greg KH wrote:
> How deep in the device tree are you really going to be caring about?  It
> sounds like the large majority of events are only going to be coming
> from the "system" type objects (cpu, nodes, memory, etc.) and very few
> would be from things that we consider a 'struct device' today (like a
> pci, usb, scsi, or input, etc.) 

The general noise I hear from the hardware people is that we'll see more
and more device-level stuff - bus bridges/controller and actual devices
(GPUs, NICs etc.) will be wanting to export performance metrics.

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