From: Christoph Lameter <cl@gentwo.org>
To: Josh Triplett <josh@joshtriplett.org>
Cc: Sarah Sharp <sarah@minilop.net>,
ksummit-discuss@lists.linuxfoundation.org,
Greg KH <gregkh@linuxfoundation.org>,
Julia Lawall <julia.lawall@lip6.fr>,
Darren Hart <darren@dvhart.com>,
Dan Carpenter <dan.carpenter@oracle.com>
Subject: Re: [Ksummit-discuss] [CORE TOPIC] Kernel tinification: shrinking the kernel and avoiding size regressions
Date: Thu, 8 May 2014 11:24:39 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.10.1405081124000.24271@gentwo.org> (raw)
On Fri, 2 May 2014, Josh Triplett wrote:
> - An overview of why the kernel's size still matters today ("but don't
> we all have tons of memory and storage?")
Kernel size matters quite a bit for performance. Processor caches are key
to performance and therefore the cache footprint of a function determines
the the possible performance. The smaller the functions and the less data
they access the faster they will run.
Therefore it needs to be possible to reduce the size of the kernel by
disabling unwanted functionality (f.e. cgroups). In order for that to
happen features need to be as independent as possible and also the user
space tools (like systemd) need to be able to handle a kernel with reduced
functionality.
next reply other threads:[~2014-05-08 16:32 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-08 16:24 Christoph Lameter [this message]
2014-05-09 0:31 ` James Bottomley
2014-05-09 14:48 ` Christoph Lameter
2014-05-09 16:24 ` Steven Rostedt
2014-05-09 16:55 ` Christoph Lameter
2014-05-09 17:21 ` josh
2014-05-09 17:42 ` James Bottomley
2014-05-09 17:52 ` Christoph Lameter
2014-05-09 18:32 ` Steven Rostedt
2014-05-09 19:02 ` Julia Lawall
2014-05-09 20:31 ` Steven Rostedt
2014-05-09 17:52 ` Matthew Wilcox
2014-05-12 18:06 ` Dave Hansen
2014-05-12 20:20 ` Roland Dreier
2014-05-14 2:37 ` Li Zefan
2014-05-15 19:41 ` H. Peter Anvin
2014-05-15 20:00 ` Greg KH
2014-05-15 20:29 ` Guenter Roeck
-- strict thread matches above, loose matches on Subject: below --
2014-05-02 16:44 Josh Triplett
2014-05-02 17:11 ` Dave Jones
2014-05-02 17:20 ` James Bottomley
2014-05-02 17:33 ` Dave Jones
2014-05-02 17:46 ` Josh Boyer
2014-05-02 18:50 ` H. Peter Anvin
2014-05-02 19:02 ` Josh Boyer
2014-05-02 19:03 ` Michael Kerrisk (man-pages)
2014-05-02 19:33 ` Theodore Ts'o
2014-05-02 19:38 ` Jiri Kosina
2014-05-02 19:49 ` Dave Jones
2014-05-02 20:06 ` Steven Rostedt
2014-05-02 20:41 ` Theodore Ts'o
2014-05-02 21:01 ` Dave Jones
2014-05-02 21:19 ` Josh Boyer
2014-05-02 21:23 ` Jiri Kosina
2014-05-02 21:36 ` Josh Boyer
2014-05-02 21:27 ` James Bottomley
2014-05-02 21:39 ` Josh Boyer
2014-05-02 22:35 ` Andy Lutomirski
2014-05-06 17:18 ` josh
2014-05-06 17:31 ` Andy Lutomirski
2014-05-09 18:22 ` H. Peter Anvin
2014-05-09 20:37 ` Andy Lutomirski
2014-05-09 22:50 ` Josh Triplett
2014-05-10 0:23 ` James Bottomley
2014-05-10 0:38 ` Andy Lutomirski
2014-05-10 3:44 ` Josh Triplett
2014-05-03 17:30 ` James Bottomley
2014-05-02 21:56 ` tytso
2014-05-02 20:45 ` Ben Hutchings
2014-05-02 21:03 ` Dave Jones
2014-05-03 13:37 ` Michael Kerrisk (man-pages)
2014-05-03 13:35 ` Michael Kerrisk (man-pages)
2014-05-03 13:32 ` Michael Kerrisk (man-pages)
2014-05-02 19:03 ` Mark Brown
2014-05-02 19:45 ` Luck, Tony
2014-05-02 21:03 ` Mark Brown
2014-05-02 21:08 ` Dave Jones
2014-05-02 21:14 ` Andy Lutomirski
2014-05-02 21:21 ` Luck, Tony
2014-05-02 21:38 ` H. Peter Anvin
2014-05-03 1:21 ` Mark Brown
2014-05-07 12:35 ` David Woodhouse
2014-05-09 15:51 ` Mark Brown
2014-05-02 17:33 ` Guenter Roeck
2014-05-02 17:44 ` Steven Rostedt
2014-05-07 11:32 ` David Woodhouse
2014-05-07 16:38 ` James Bottomley
2014-05-02 22:04 ` Jan Kara
2014-05-05 23:45 ` Bird, Tim
2014-05-06 2:14 ` H. Peter Anvin
2014-05-09 16:22 ` Josh Triplett
2014-05-09 16:59 ` Bird, Tim
2014-05-09 17:23 ` josh
2014-05-08 15:52 ` Christoph Lameter
2014-05-12 17:35 ` Wolfram Sang
2014-05-13 16:36 ` Bird, Tim
2014-05-13 18:00 ` josh
2014-05-14 1:04 ` Julia Lawall
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