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From: Robin Holt <holt@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [RFC] 4-level page table directories.
Date: Thu, 10 Nov 2005 09:13:14 +0000	[thread overview]
Message-ID: <20051110091314.GA7928@lnx-holt.americas.sgi.com> (raw)
In-Reply-To: <20051027041709.GA13193@attica.americas.sgi.com>

> For example, if you have:
> 
> 	128 GB per SSI 
> 	16 SSIs connected via NUMALINK
> 
> a task running within an SSI can access all 2TB of memory (excluding memory
> used by the kernel)

And here to, access may not mean exactly what you expect.  Some accesses
are simple uncached accesses.  Some are cached accesses for the owning
SSI uncached accesses for the remote side (write coalesced).  Some are
DMA reads from the remote side to cachable local side.  When Jack says
access, he truly means it in a very broad sense.

Thanks,
Robin

      parent reply	other threads:[~2005-11-10  9:13 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-27  4:17 [RFC] 4-level page table directories Robin Holt
2005-10-28  5:19 ` Ian Wienand
2005-10-28 11:19 ` Robin Holt
2005-10-28 23:23 ` Luck, Tony
2005-10-28 23:55 ` Chen, Kenneth W
2005-10-29  0:49 ` Grant Grundler
2005-10-29  2:18 ` David Mosberger-Tang
2005-11-01 12:13 ` Robin Holt
2005-11-01 15:41 ` David Mosberger-Tang
2005-11-02 10:35 ` Robin Holt
2005-11-02 13:26 ` Robin Holt
2005-11-02 16:11 ` Luck, Tony
2005-11-02 16:23 ` Robin Holt
2005-11-02 16:30 ` Luck, Tony
2005-11-02 17:16 ` Robin Holt
2005-11-02 18:59 ` David Mosberger-Tang
2005-11-02 22:26 ` Ian Wienand
2005-11-03  1:36 ` Gerald Pfeifer
2005-11-03  1:53 ` Chen, Kenneth W
2005-11-03  3:55 ` Jack Steiner
2005-11-03 16:36 ` Robin Holt
2005-11-03 19:59 ` Chen, Kenneth W
2005-11-04 17:58 ` Luck, Tony
2005-11-04 21:37 ` Robin Holt
2005-11-04 21:42 ` Chen, Kenneth W
2005-11-04 22:50 ` Chen, Kenneth W
2005-11-07 21:18 ` Luck, Tony
2005-11-08  0:22 ` Rohit Seth
2005-11-08 12:43 ` Robin Holt
2005-11-08 18:23 ` Boehm, Hans
2005-11-08 18:52 ` Magenheimer, Dan (HP Labs Fort Collins)
2005-11-08 18:56 ` Rohit Seth
2005-11-08 19:36 ` Robin Holt
2005-11-08 20:07 ` Chen, Kenneth W
2005-11-08 20:27 ` Chen, Kenneth W
2005-11-08 22:09 ` Ian Wienand
2005-11-08 23:58 ` Gerald Pfeifer
2005-11-09  0:08 ` David Mosberger-Tang
2005-11-09  0:22 ` Rohit Seth
2005-11-09  0:46 ` Magenheimer, Dan (HP Labs Fort Collins)
2005-11-09  1:18 ` Chen, Kenneth W
2005-11-09 12:11 ` Robin Holt
2005-11-09 14:29 ` Robin Holt
2005-11-09 18:22 ` Chen, Kenneth W
2005-11-09 18:39 ` Luck, Tony
2005-11-10  0:03 ` Gerald Pfeifer
2005-11-10  0:23 ` Jack Steiner
2005-11-10  0:27 ` Luck, Tony
2005-11-10  2:54 ` Jack Steiner
2005-11-10  9:13 ` Robin Holt [this message]

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