Re: Basic perf PMU support for Haswell v9

From: Ingo Molnar
Date: Thu Mar 21 2013 - 07:28:43 EST

* Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> This is based on v7 of the full Haswell PMU support,
> rebased, reviewer-optimized and stripped down to the bare bones
> Most interesting new features are not in this patchkit
> (full version is git:// hsw/pmu5)
> Contains support for:
> - Basic Haswell PMU and PEBS support
> - Late unmasking of the PMI
> - Basic LBRv4 support
> v2: Addressed Stephane's feedback. See individual patches for details.
> v3: now even more bite-sized. Qualifier constraints merged earlier.
> v4: Rename some variables, add some comments and other minor changes.
> Add some Reviewed/Tested-bys.
> v5: Address some minor review feedback. Port to latest perf/core
> v6: Add just some variable names, add comments, edit descriptions, some
> more testing, rebased to latest perf/core
> v7: Expand comment
> v8: Rename structure field.
> v9: No wide counters, but add basic LBRs. Add some more
> constraints. Rebase to 3.9rc1

I had another look at your latest patches and they are still quite sloppy:
you never ran them through, right? Tons of warnings, quite a
few of which are legitimate.

These are all basic kernel hacking 101 mistakes you commited and we are
already into version 9 of your patch-set ...

Having to point out trivial errors in your patches again and again is not
a very efficient use of my time, frankly.


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