Messages in this thread | | | Date | Tue, 27 Jul 2010 10:27:49 +0200 | From | Robert Richter <> | Subject | Re: [RFC][PATCH v1 02/15] perf: export generic hardware events via sysfs |
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On 26.07.10 22:18:23, Lin Ming wrote:
> > > /sys/devices/system/cpu/cpu0/events > > > |-- L1-dcache-load-misses > > > | |-- config > > > | `-- type
vs.
> > |-- L1-dcache-load-misses ===> event name > > | `-- id ===> event id
> > This is very simple and flexible and solves the original problem too. > > Yeah, this is flexible. I'll think about this closely.
The thing is, if you start introducing the config/type i/f, we will stick with it for a long time. I want to avoid this from the beginning.
Using an id only would work with your current implementation too, you only need to maintain an id -> config/type mapping, maybe in some private data section, without exporting it to userspace.
-Robert
-- Advanced Micro Devices, Inc. Operating System Research Center
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