linux-kernel - Re: [PATCH v2 2/2] perf tools: Make Power7 events available for perf

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Date:	Fri, 28 Jun 2013 00:23:09 +1000
From:	Michael Ellerman <michael@...erman.id.au>
To:	Runzhen Wang <runzhen@...ux.vnet.ibm.com>
Cc:	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	paulus@...ba.org, acme@...hat.com, sukadev@...ux.vnet.ibm.com,
	xiaoguangrong@...ux.vnet.ibm.com
Subject: Re: [PATCH v2 2/2] perf tools: Make Power7 events available for perf

On Tue, Jun 25, 2013 at 10:35:33PM +0800, Runzhen Wang wrote:
> Power7 supports over 530 different perf events but only a small
> subset of these can be specified by name, for the remaining
> events, we must specify them by their raw code:

Hi Runzhen,

This is looking good. Sorry one last request below ...


> diff --git a/arch/powerpc/perf/power7-events-list.h b/arch/powerpc/perf/power7-events-list.h
> new file mode 100644
> index 0000000..a67e8a9
> --- /dev/null
> +++ b/arch/powerpc/perf/power7-events-list.h
> @@ -0,0 +1,548 @@
..
> +
> +EVENT(PM_IC_DEMAND_L2_BR_ALL,                 0x4898)
> +EVENT(PM_GCT_UTIL_7_TO_10_SLOTS,              0x20a0)
> +EVENT(PM_PMC2_SAVED,                          0x10022)
> +EVENT(PM_CMPLU_STALL_DFU,                     0x2003c)
> +EVENT(PM_VSU0_16FLOP,                         0xa0a4)


Can you add a leading zero to all the events that don't have a PMC, so
that they all line up vertically. It makes it a lot easier to scan the
list visually.

eg:

EVENT(PM_IC_DEMAND_L2_BR_ALL,                 0x04898)
EVENT(PM_GCT_UTIL_7_TO_10_SLOTS,              0x020a0)
EVENT(PM_PMC2_SAVED,                          0x10022)
EVENT(PM_CMPLU_STALL_DFU,                     0x2003c)
EVENT(PM_VSU0_16FLOP,                         0x0a0a4)


cheers
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