How to disable NUMA in Red Hat Enterprise Linux system?

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原文链接：https://access.redhat.com/solutions/23216

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#disable #numa #rhel

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本文介绍如何在Red Hat Enterprise Linux系统中禁用NUMA（非统一内存访问）。通过在引导加载器配置中的内核命令行添加numa=off参数并重启系统，可以实现NUMA的禁用。文章提供了RHEL 4、5、6和7的具体配置示例。

How to disable NUMA in Red Hat Enterprise Linux system?

SOLUTION 已验证 - 已更新 2019年七月11日19:29 -

English

环境

Red Hat Enterprise Linux 4
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7

问题

How to disable NUMA in Red Hat Enterprise Linux system?

决议

Adding the "numa=off" to kernel command line in boot loader configuration and rebooting the system will disable NUMA.

Examples:

RHEL 4, RHEL 5, RHEL 6 (/boot/grub/grub.conf)

Raw

    title Red Hat Enterprise Linux AS (2.6.9-55.EL)
            root (hd0,0)
            kernel /vmlinuz-2.6.9-55.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet numa=off
            initrd /initrd-2.6.9-55.EL.img

RHEL 7 (/etc/default/grub)

Raw

    GRUB_CMDLINE_LINUX="rd.lvm.lv=rhel_vm-210/root rd.lvm.lv=rhel_vm-210/swap vconsole.font=latarcyrheb-sun16 crashkernel=auto  vconsole.keymap=us rhgb quiet numa=off"

Please note, on RHEL 7 grub config has to be rebuilt for changes to take effect:

Raw