linux-kernel - Re: [PATCH v2 18/20] perf tools: Add support for the SPF perf event

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Message-Id: <b713236f-4d23-0b95-3e48-6fa64f0ce616@linux.vnet.ibm.com>
Date:   Fri, 25 Aug 2017 10:53:47 +0200
From:   Laurent Dufour <ldufour@...ux.vnet.ibm.com>
To:     Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
        paulmck@...ux.vnet.ibm.com, peterz@...radead.org,
        akpm@...ux-foundation.org, kirill@...temov.name,
        ak@...ux.intel.com, mhocko@...nel.org, dave@...olabs.net,
        jack@...e.cz, Matthew Wilcox <willy@...radead.org>,
        benh@...nel.crashing.org, mpe@...erman.id.au, paulus@...ba.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, hpa@...or.com,
        Will Deacon <will.deacon@....com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        haren@...ux.vnet.ibm.com, npiggin@...il.com, bsingharora@...il.com,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        linuxppc-dev@...ts.ozlabs.org, x86@...nel.org
Subject: Re: [PATCH v2 18/20] perf tools: Add support for the SPF perf event

On 21/08/2017 10:48, Anshuman Khandual wrote:
> On 08/18/2017 03:35 AM, Laurent Dufour wrote:
>> Add support for the new speculative faults event.
>>
>> Signed-off-by: Laurent Dufour <ldufour@...ux.vnet.ibm.com>
>> ---
>>  tools/include/uapi/linux/perf_event.h | 1 +
>>  tools/perf/util/evsel.c               | 1 +
>>  tools/perf/util/parse-events.c        | 4 ++++
>>  tools/perf/util/parse-events.l        | 1 +
>>  tools/perf/util/python.c              | 1 +
>>  5 files changed, 8 insertions(+)
>>
>> diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
>> index b1c0b187acfe..3043ec0988e9 100644
>> --- a/tools/include/uapi/linux/perf_event.h
>> +++ b/tools/include/uapi/linux/perf_event.h
>> @@ -111,6 +111,7 @@ enum perf_sw_ids {
>>  	PERF_COUNT_SW_EMULATION_FAULTS		= 8,
>>  	PERF_COUNT_SW_DUMMY			= 9,
>>  	PERF_COUNT_SW_BPF_OUTPUT		= 10,
>> +	PERF_COUNT_SW_SPF_DONE			= 11,
> 
> Right, just one event for the success case. 'DONE' is redundant, only
> 'SPF' should be fine IMHO.
> 

Fair enough, I'll rename it PERF_COUNT_SW_SPF.

Thanks,
Laurent.