linux-kernel - Re: [PATCH 1/1] perf tools: Add missing user space support for config1/config2

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]

Date:	Fri, 22 Apr 2011 17:00:10 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	linux-kernel@...r.kernel.org, Stephane Eranian <eranian@...il.com>,
	Lin Ming <ming.m.lin@...el.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/1] perf tools: Add missing user space support for
 config1/config2

On Sat, Apr 23, 2011 at 12:57:42AM +0200, Peter Zijlstra wrote:
> On Fri, 2011-04-22 at 23:54 +0200, Peter Zijlstra wrote:
> > On Fri, 2011-04-22 at 23:37 +0200, Peter Zijlstra wrote:
> > > The below needs filling out for !x86 (which I filled out with
> > > unsupported events) and x86 needs the offcore bits fixed to auto select
> > > between the two offcore events.
> > 
> > Urgh, so SNB has different MSR_OFFCORE_RESPONSE bits and needs another table.
> 
> Also, NHM offcore bits were wrong... it implemented _ACCESS as _HIT and

What is ACCESS if not a HIT?

> counted OTHER_CORE_HIT* as MISS even though its clearly documented as an
> L3 hit.

When the other core owns the cache line it has to be fetched from there.
That's not a LLC hit.

-Andi
--
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/