Messages in this thread | | | Date | Tue, 23 Jul 2013 01:40:40 -0400 (EDT) | From | Vince Weaver <> | Subject | Re: [PATCH 1/2] tools, perf: Add a precise event qualifier v2 |
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On Mon, 22 Jul 2013, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com> > > Add a precise qualifier, like cpu/event=0x3c,precise=1/
So you're adding this to "events/" but not to "format/"?
This breaks the ABI, which specifies that the only fields that can appear in a sysfs events specifier must exist under the format directory.
This was what I worried about when I said people are going to start leaking perf tool specific events into the kernel sysfs tree.
This will break various existing programs.
Vince
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