From: Rick Jones <rick.jones2@hp.com>
Cc: "open-iscsi@googlegroups.com" <open-iscsi@googlegroups.com>,
ksummit-2005-discuss@thunk.org, netdev@oss.sgi.com
Subject: Re: [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics
Date: Mon, 04 Apr 2005 11:57:52 -0700 [thread overview]
Message-ID: <42518E30.2090207@hp.com> (raw)
In-Reply-To: <1112465317.24936.10.camel@mylaptop>
> What RDMA gives us is zero-copy on receive and new networking api which
> has a potential to be HW accelerated. SoftRDMA will never avoid copying
> on receive. But benefit for SoftRDMA would be its availability on client
> sides. It is free and it could be easily deployed. Soon Intel & Co will
> give us 2,4,8... multi-core CPUs for around 200$ :), So, who cares if
> one of those cores will do receive side copying?
20 years ago, in certain circles at least, people were saying "With 32-bits of
addressing, who cares if we allocate much memory" :)
Speaking a bit more prosaicly, if that core is sitting there churning through
data copies, what affect does that have on the rest of the bus(ses) and the
memory? What else will the client want to be able to push around that those
data copies may preclude?
rick jones
next prev parent reply other threads:[~2005-04-04 18:57 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4241D106.8050302@cs.wisc.edu>
[not found] ` <20050324101622S.fujita.tomonori@lab.ntt.co.jp>
[not found] ` <1111628393.1548.307.camel@beastie>
[not found] ` <20050324113312W.fujita.tomonori@lab.ntt.co.jp>
[not found] ` <1111633846.1548.318.camel@beastie>
[not found] ` <20050324215922.GT14202@opteron.random>
[not found] ` <424346FE.20704@cs.wisc.edu>
[not found] ` <20050324233921.GZ14202@opteron.random>
[not found] ` <20050325034341.GV32638@waste.org>
[not found] ` <20050327035149.GD4053@g5.random>
2005-03-27 5:48 ` [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics Matt Mackall
2005-03-27 6:04 ` Andrea Arcangeli
2005-03-27 6:38 ` Matt Mackall
2005-03-27 14:50 ` Andrea Arcangeli
2005-03-27 6:33 ` Dmitry Yusupov
2005-03-27 6:46 ` David S. Miller
2005-03-27 7:05 ` Dmitry Yusupov
2005-03-27 7:57 ` David S. Miller
2005-03-27 8:18 ` Dmitry Yusupov
2005-03-27 18:26 ` Mike Christie
2005-03-27 18:31 ` David S. Miller
2005-03-27 19:58 ` Matt Mackall
2005-03-27 21:49 ` Dmitry Yusupov
2005-03-27 18:47 ` Dmitry Yusupov
2005-03-27 21:14 ` Alex Aizman
[not found] ` <20050327211506.85EDA16022F6@mx1.suse.de>
2005-03-28 0:15 ` Andrea Arcangeli
2005-03-28 3:54 ` Rik van Riel
2005-03-28 4:34 ` David S. Miller
2005-03-28 4:50 ` Rik van Riel
2005-03-28 6:58 ` Alex Aizman
2005-03-28 16:12 ` Andi Kleen
2005-03-28 16:22 ` Andrea Arcangeli
2005-03-28 16:24 ` Rik van Riel
2005-03-29 15:11 ` Andi Kleen
2005-03-29 15:29 ` Rik van Riel
2005-03-29 17:03 ` Matt Mackall
2005-03-28 16:28 ` James Bottomley
2005-03-29 15:20 ` Andi Kleen
2005-03-29 15:56 ` James Bottomley
2005-03-29 17:19 ` Dmitry Yusupov
2005-03-29 21:08 ` jamal
2005-03-29 22:00 ` Rik van Riel
2005-03-29 22:17 ` Matt Mackall
2005-03-29 23:30 ` jamal
2005-03-29 23:00 ` jamal
2005-03-29 23:25 ` Matt Mackall
2005-03-30 0:30 ` H. Peter Anvin
2005-03-30 15:24 ` Andi Kleen
2005-03-29 22:03 ` Rick Jones
2005-03-29 23:13 ` jamal
2005-03-30 2:28 ` Alex Aizman
[not found] ` <E1DGSwp-0004ZE-00@thunker.thunk.org>
2005-03-30 17:16 ` Grant Grundler
2005-03-30 18:46 ` Dmitry Yusupov
2005-03-30 15:22 ` Andi Kleen
2005-03-30 15:33 ` Andrea Arcangeli
2005-03-30 15:38 ` Rik van Riel
2005-03-30 15:39 ` Andi Kleen
2005-03-30 15:44 ` Andrea Arcangeli
2005-03-30 15:50 ` Rik van Riel
2005-03-30 16:04 ` James Bottomley
2005-03-30 17:48 ` H. Peter Anvin
2005-03-30 16:02 ` Andi Kleen
2005-03-30 16:15 ` Andrea Arcangeli
2005-03-30 16:55 ` jamal
2005-03-30 18:42 ` Rik van Riel
2005-03-30 19:28 ` Alex Aizman
2005-03-31 11:41 ` Andi Kleen
2005-03-31 12:12 ` Rik van Riel
2005-03-31 18:59 ` Andi Kleen
2005-03-31 19:04 ` Rik van Riel
2005-03-31 15:35 ` Grant Grundler
2005-03-31 19:15 ` Alex Aizman
2005-03-31 19:34 ` Andi Kleen
2005-03-31 19:39 ` Rik van Riel
2005-03-31 11:45 ` Andi Kleen
2005-03-31 11:50 ` Andi Kleen
2005-03-31 17:09 ` Andrea Arcangeli
2005-03-31 22:05 ` Dmitry Yusupov
2005-03-30 17:24 ` Matt Mackall
2005-03-30 17:39 ` Dmitry Yusupov
2005-03-30 20:10 ` Mike Christie
2005-03-30 17:07 ` Grant Grundler
2005-03-30 5:12 ` H. Peter Anvin
2005-03-28 16:37 ` Dmitry Yusupov
2005-03-28 19:45 ` Roland Dreier
2005-03-28 20:32 ` Topic: Remote DMA network technologies Gerrit Huizenga
2005-03-28 20:36 ` Roland Dreier
[not found] ` <1112042936.5088.22.camel@beastie>
2005-03-28 22:32 ` [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics Benjamin LaHaise
2005-03-29 3:19 ` Linux support for RDMA (was: [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics) Roland Dreier
2005-03-30 16:00 ` Benjamin LaHaise
2005-03-31 1:08 ` Linux support for RDMA H. Peter Anvin
2005-04-02 18:08 ` [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics Dmitry Yusupov
2005-04-02 19:13 ` Ming Zhang
2005-04-04 6:31 ` Grant Grundler
2005-04-04 18:57 ` Rick Jones [this message]
2005-03-29 3:14 ` Linux support for RDMA (was: [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics) Roland Dreier
[not found] <42472259.2866086e.3169.318fSMTPIN_ADDED@mx.googlegroups.com>
2005-03-27 21:18 ` [Ksummit-2005-discuss] Summary of 2005 Kernel Summit Proposed Topics Alex Aizman
2005-03-27 21:53 Alex Aizman
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