From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
"H. Peter Anvin" <hpa@zytor.com>,
David Vrabel <david.vrabel@citrix.com>,
Andy Lutomirski <luto@amacapital.net>,
Pavel Emelyanov <xemul@parallels.com>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>,
Xen-devel@lists.xen.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Jan Beulich <jbeulich@suse.com>
Subject: Re: Regression: x86/mm: new _PTE_SWP_SOFT_DIRTY bit conflicts with existing use
Date: Thu, 22 Aug 2013 17:12:21 +0400 [thread overview]
Message-ID: <20130822131221.GM18673@moon> (raw)
In-Reply-To: <20130822063733.GG4665@bbox>
On Thu, Aug 22, 2013 at 03:37:33PM +0900, Minchan Kim wrote:
> >
> > Look, good thing is that 7th bit also available on the 4level pages
> > (ie x86-64) without additional code modification, that's why I picked
> > it in first place. I prepared the patch locally which doesn't use
> > pse bit for tracking but it only makes code more complex.
>
> I'm not sure you read this thread.
> http://comments.gmane.org/gmane.linux.kernel.mm/101756
> In summary, I'd like to use it to track sub-ranges of some processes.
>
> I already had a time to investigate and it enhanced our workload x2 on ARM
> so I'd like to expand the concept for more general purpose.
>
> For it, arch-specific stuff would be hurdle for port.
> So, I support your non-arch-specific solutions.
> Just FYI. Such future plan shouldn't force you.
Hi Minchan, thanks for info, I'll read the thread (sorry for delay,
managed to miss your email).
next prev parent reply other threads:[~2013-08-22 13:12 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-21 13:48 Regression: x86/mm: new _PTE_SWP_SOFT_DIRTY bit conflicts with existing use David Vrabel
2013-08-21 13:53 ` konrad wilk
2013-08-21 14:11 ` H. Peter Anvin
2013-08-21 14:19 ` Cyrill Gorcunov
2013-08-21 14:22 ` H. Peter Anvin
2013-08-21 14:29 ` Cyrill Gorcunov
2013-08-21 16:30 ` Linus Torvalds
2013-08-21 16:42 ` Cyrill Gorcunov
2013-08-21 23:05 ` Cyrill Gorcunov
2013-08-21 23:42 ` Andi Kleen
2013-08-22 5:49 ` Cyrill Gorcunov
2013-08-22 6:37 ` Minchan Kim
2013-08-22 13:12 ` Cyrill Gorcunov [this message]
2013-08-27 22:04 ` Benjamin Herrenschmidt
2013-08-21 14:12 ` Cyrill Gorcunov
2013-08-21 14:22 ` H. Peter Anvin
2013-08-21 14:53 ` Jan Beulich
2013-08-21 14:58 ` H. Peter Anvin
2013-08-21 15:42 ` Cyrill Gorcunov
2013-08-21 16:03 ` Jan Beulich
2013-08-21 16:19 ` Cyrill Gorcunov
2013-08-21 16:56 ` David Vrabel
2013-08-21 17:25 ` Cyrill Gorcunov
2013-08-21 18:17 ` Cyrill Gorcunov
2013-08-21 18:50 ` H. Peter Anvin
2013-08-21 19:03 ` Cyrill Gorcunov
2013-08-21 19:07 ` Andy Lutomirski
2013-08-21 19:20 ` Cyrill Gorcunov
2013-08-21 19:21 ` Pavel Emelyanov
2013-08-21 23:04 ` Linus Torvalds
2013-08-22 0:51 ` Dave Jones
2013-08-22 5:44 ` Cyrill Gorcunov
2013-08-22 6:41 ` Pavel Emelyanov
2013-08-22 7:47 ` Jan Beulich
2013-08-22 9:32 ` David Vrabel
2013-08-22 10:16 ` Pavel Emelyanov
2013-08-22 6:56 ` Jan Beulich
2013-08-22 7:03 ` Cyrill Gorcunov
2013-08-22 7:27 ` Jan Beulich
2013-08-22 11:27 ` Cyrill Gorcunov
2013-08-22 11:33 ` Jan Beulich
2013-08-22 12:18 ` Pavel Emelyanov
2013-08-21 17:28 ` Andy Lutomirski
2013-08-22 7:54 ` Jan Beulich
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