From: "Yan, Zheng" <zheng.z.yan@intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-kernel@vger.kernel.org, eranian@google.com, ak@linux.intel.com
Subject: Re: [PATCH 1/6] perf, x86: Basic Haswell LBR call stack support
Date: Tue, 23 Oct 2012 13:41:22 +0800 [thread overview]
Message-ID: <50862E02.6020002@intel.com> (raw)
In-Reply-To: <1350902138.2768.86.camel@twins>
On 10/22/2012 06:35 PM, Peter Zijlstra wrote:
> On Mon, 2012-10-22 at 14:11 +0800, Yan, Zheng wrote:
>> --- a/include/uapi/linux/perf_event.h
>> +++ b/include/uapi/linux/perf_event.h
>> @@ -160,8 +160,9 @@ enum perf_branch_sample_type {
>> PERF_SAMPLE_BRANCH_ABORT = 1U << 7, /* transaction aborts */
>> PERF_SAMPLE_BRANCH_INTX = 1U << 8, /* in transaction (flag) */
>> PERF_SAMPLE_BRANCH_NOTX = 1U << 9, /* not in transaction (flag) */
>> + PERF_SAMPLE_BRANCH_CALL_STACK = 1U << 10, /* call stack */
>>
>> - PERF_SAMPLE_BRANCH_MAX = 1U << 10, /* non-ABI */
>> + PERF_SAMPLE_BRANCH_MAX = 1U << 11, /* non-ABI */
>> };
>
> You add an ABI sample type without mentioning it in your changelog.. I
> think I'll stop reading here.
>
Ok, I will add the ABI change to the change log. Do you think we should hide this
branch sample type from user?
Regards
Yan, Zheng
next prev parent reply other threads:[~2012-10-23 5:41 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-22 6:11 [PATCH 0/6] perf, x86: Haswell LBR call stack support Yan, Zheng
2012-10-22 6:11 ` [PATCH 1/6] perf, x86: Basic " Yan, Zheng
2012-10-22 10:33 ` Peter Zijlstra
2012-10-22 11:23 ` Stephane Eranian
2012-10-23 5:31 ` Yan, Zheng
2012-10-22 13:45 ` Andi Kleen
2012-10-23 5:28 ` Yan, Zheng
2012-10-22 10:35 ` Peter Zijlstra
2012-10-22 13:49 ` Andi Kleen
2012-10-23 5:41 ` Yan, Zheng [this message]
2012-10-23 10:11 ` Peter Zijlstra
2012-10-23 12:09 ` Stephane Eranian
2012-10-23 16:34 ` Andi Kleen
2012-10-22 6:11 ` [PATCH 2/6] perf, x86: Introduce x86 special perf event context Yan, Zheng
2012-10-22 6:11 ` [PATCH 3/6] perf, x86: Save/resotre LBR stack during context switch Yan, Zheng
2012-10-22 6:11 ` [PATCH 4/6] perf, core: Pass perf_sample_data to perf_callchain() Yan, Zheng
2012-10-22 6:11 ` [PATCH 5/6] perf, x86: Use LBR call stack to get user callchain Yan, Zheng
2012-10-22 6:11 ` [PATCH 6/6] perf, x86: Discard zero length call entries in LBR call stack Yan, Zheng
-- strict thread matches above, loose matches on Subject: below --
2012-10-22 5:57 [PATCH 0/6] perf, x86: Haswell LBR call stack support Yan, Zheng
2012-10-22 5:57 ` [PATCH 1/6] perf, x86: Basic " Yan, Zheng
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