Messages in this thread | | | Date | Mon, 8 Aug 2011 15:03:09 +0200 | From | Jiri Olsa <> | Subject | Re: regarding [PATCH] Add libpfm4 support (v3) |
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On Mon, Aug 08, 2011 at 02:25:25PM +0200, Peter Zijlstra wrote: > On Mon, 2011-08-08 at 14:04 +0200, Jiri Olsa wrote: > > hi, > > > > any chance of getting this included? > > http://article.gmane.org/gmane.comp.linux.perfmon2.devel/2912 > > http://article.gmane.org/gmane.comp.linux.perfmon2.devel/2912/raw > > > > it needs just some little changes to fit to current tip tree > > While I don't mind extending the current way to input events I don't > think using libpfm4 for it is desired. > > One of the ideas that has been floating about is to provide a format > file in the sysfs representation of the pmu. This format file would > describe the config space. The tool would parse this and use it to > provide better input capabilities. > > This is not an easy task however, since the format syntax needs to be > capable enough to describe all the various config muck we need to > support, think for example of the P4 mess. > > For Intel/AMD (excluding P4) its mostly simple, with Intel having a > slightly harder time for the offcore bits. > > As to the various arch event lists, again that is not something we need > a whole library for, parsing those text files isn't hard. Maintaining > the various arch event lists in a sane format is the 'hard' part and is > something I think we should push to the vendors, because they're > basically the only ones capable. ok, understood
thanks, jirka
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