Gentoo Archives: gentoo-user

From: Mick <michaelkintzios@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Dual or Quad CPU complications?
Date: Sat, 15 Dec 2012 00:42:40
Message-Id: 201212150041.04754.michaelkintzios@gmail.com
In Reply to: Re: [gentoo-user] Dual or Quad CPU complications? by Bruce Hill
1 On Thursday 13 Dec 2012 14:13:56 Bruce Hill wrote:
2 > On Thu, Dec 13, 2012 at 08:44:45AM +0100, J. Roeleveld wrote:
3 > > NUMA is also an option in the kernel. Should also be fully transparent.
4 > > I got one machine with NUMA and only had to set an option for it.
5 > >
6 > > Does anyone know how to check it's working properly?
7 >
8 > dmesg | grep NUMA
9
10 Hmm ... it seems that it can't find NUMA configuration:
11
12 $ dmesg | grep UMA
13 No NUMA configuration found
14
15 Am I supposed to configure something in userspace? This is what the kernel
16 has:
17
18 $ uname -a
19 Linux dell_xps 3.5.7-gentoo #2 SMP PREEMPT Mon Nov 26 10:36:47 GMT 2012 x86_64
20 Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz GenuineIntel GNU/Linux
21
22 $ cat /usr/src/linux/.config | grep -i NUMA
23 CONFIG_NUMA=y
24 # CONFIG_AMD_NUMA is not set
25 CONFIG_X86_64_ACPI_NUMA=y
26 # CONFIG_NUMA_EMU is not set
27 CONFIG_USE_PERCPU_NUMA_NODE_ID=y
28 CONFIG_ACPI_NUMA=y
29 --
30 Regards,
31 Mick

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Re: [gentoo-user] Dual or Quad CPU complications? Florian Philipp <lists@×××××××××××.net>