Re: [RFC PATCH 0/5] perf: Intel uncore pmu counting support
From: Ingo Molnar
Date: Wed Mar 28 2012 - 02:49:31 EST
* Yan, Zheng <zheng.z.yan@xxxxxxxxx> wrote:
> Hi, all
> Here is the RFC patches to add uncore counting support for Nehalem,
> Sandy Bridge and Sandy Bridge-EP, applied on top of current tip.
> The code is based on Lin Ming's old patches.
> You can use 'perf stat' to access to the uncore pmu. For example:
> perf stat -a -C 0 -e 'uncore_nhm/config=0xffff/' sleep 1
My main complaint is that that's not user friendly *AT ALL*.
You need to make this useful to mere mortals: go through the
SDM, categorize interesting looking events, look at how it can
be expressed via tooling, add a generic event where appropriate,
provide examples, actually *USE* it to improve the kernel or an
app and see the workflow as it happens and improve the tooling,
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