Messages in this thread | | | Date | Fri, 12 Dec 2008 05:59:38 -0500 | From | Christoph Hellwig <> | Subject | Re: [patch] Performance Counters for Linux, v3 |
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On Fri, Dec 12, 2008 at 11:21:11AM +0100, Robert Richter wrote: > I agree with Stephane. There are already many different PMU > descriptions depending on family, model and steppping and with *every* > new cpu revision you will get one more update. Implementing this in > the kernel would require kernel updates where otherwise no changes > would be necessary.
Please stop the Bullshit. You have to update _something_. It makes a lot of sense to update the thing you need to udpate anyway for new hardware support, and not some piece of junk library like libperfmon.
> > Talking with my community hat on, that is an artificial problem created > > by distributions, tell them to fix it. > > It does not make sense to close the eyes to reality. There are systems > where it is not possible to update the kernel frequently. Probably you > have one running yourself.
Of course it is. And on many of my systems it's much easier to update a kernel than a library. A kernel I can build myself, for libraries I'm more or less reliant on the distro or hacking fugly rpm or debian packagging bits.
Having HW support in the kernel is a lot easier than in weird libraries.
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