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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CABPqkBTYfc6CLJNzRqxDnQPr_sdv+yE9sLq717rg0sYzHhxssg@mail.gmail.com>
Date:	Tue, 15 Jul 2014 00:49:43 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Andi Kleen <ak@...ux.intel.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Peter Zijlstra <peterz@...radead.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 12:39 AM, Andi Kleen <ak@...ux.intel.com> wrote:
>> I have a problem with this patch.
>>
>> It makes: perf mem -t store rec record OP_NA for the store.
>> It was recording OP_STORE before.
>>
>> I think we need to keep LD/ST info. This is useful for analysis
>> especially if we collect loads/stores simultaneously.
>>
>> Was working before for the mem-loads, mem-stores events.
>
> Ok. Would it be enough if it only worked for "mem-stores" and not
> all PEBS events?
>
Ok, do that at a minimum.

> Otherwise have to go back to an even larger PEBS constraint
> table for HSW than before.
>
> -Andi
>
> --
> ak@...ux.intel.com -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/