linux-kernel - Re: [PATCH 2/2] perf, x86: Don't mark DataLA addresses as store

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Message-ID: <CABPqkBTMg_DM40LpgKisx-9GHpgxXxU96g3BEo_=JTLGyqYBVw@mail.gmail.com>
Date:	Tue, 15 Jul 2014 20:19:31 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Andi Kleen <ak@...ux.intel.com>, Andi Kleen <andi@...stfloor.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] perf, x86: Don't mark DataLA addresses as store

On Tue, Jul 15, 2014 at 10:59 AM, Peter Zijlstra <peterz@...radead.org> wrote:
> On Mon, Jul 14, 2014 at 09:05:42PM -0700, Andi Kleen wrote:
>
>> Yes, there are only three store events:
>>
>> MEM_UOPS_RETIRED.STLB_MISS_STORES
>> MEM_UOPS_RETIRED.SPLIT_STORES
>> MEM_UOPS_RETIRED.ALL_STORES
>>
>> These can be added.
>>
>> But most others are loads, so if you wanted loads too (besides mem-loads)
>> it would be nearly a full list.
>
> Of that list you had earlier:
>
> MEM_UOPS_RETIRED.STLB_MISS_LOADS
> MEM_UOPS_RETIRED.STLB_MISS_STORES
> MEM_UOPS_RETIRED.LOCK_LOADS
> MEM_UOPS_RETIRED.SPLIT_LOADS
> MEM_UOPS_RETIRED.SPLIT_STORES
> MEM_UOPS_RETIRED.ALL_LOADS
> MEM_UOPS_RETIRED.ALL_STORES
>
> There's only 4 loads and (as you already said) 3 stores.
>
> That's 7 events total, that's not nearly a full list.
>
> The other events:
>
> UOPS_RETIRED.ALL
> MEM_LOAD_UOPS_RETIRED.L1_HIT
> MEM_LOAD_UOPS_RETIRED.L2_HIT
> MEM_LOAD_UOPS_RETIRED.L3_HIT
> MEM_LOAD_UOPS_RETIRED.L1_MISS
> MEM_LOAD_UOPS_RETIRED.L2_MISS
> MEM_LOAD_UOPS_RETIRED.L3_MISS
> MEM_LOAD_UOPS_RETIRED.HIT_LFB
> MEM_LOAD_UOPS_L3_HIT_RETIRED.XSNP_MISS
> MEM_LOAD_UOPS_L3_HIT_RETIRED.XSNP_HIT
> MEM_LOAD_UOPS_L3_HIT_RETIRED.XSNP_HITM
> MEM_LOAD_UOPS_L3_HIT_RETIRED.XSNP_NONE
> MEM_LOAD_UOPS_L3_MISS_RETIRED.LOCAL_DRAM
>
Those are loads uops.

> are unclear on their type and should indeed be NA.
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