#1760: CONFIG_IRQBALANCE is no longer recommended
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Reporter: [EMAIL PROTECTED] | Owner: [email protected]
Type: defect | Status: new
Priority: normal | Milestone:
Component: CD | Version: x86-6.3
Keywords: |
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The LiveCD kernel has CONFIG_IRQBALANCE set. However, in the latest git
kernel, the description has changed:
{{{
Mark CONFIG_IRQBALANCE as not recommended any more. It eats too much
power, and better solutions are available in userspace.
Signed-off-by: Pavel Machek <[EMAIL PROTECTED]>
---
commit 2665f7971b5b97830b028308553a78a95c131988
tree e1782cceebfb5900373469c0043d113de88f861f
parent f5085f6ea1c5771708c44a4a42ee217e760ff4a0
author Pavel <[EMAIL PROTECTED]> Tue, 23 Oct 2007 13:56:15 +0200
committer Pavel <[EMAIL PROTECTED]> Tue, 23 Oct 2007 13:56:15 +0200
arch/i386/Kconfig | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index eba2d88..10f3c38 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -779,10 +779,13 @@ config EFI
config IRQBALANCE
bool "Enable kernel irq balancing"
depends on SMP && X86_IO_APIC
- default y
+ default n
help
- The default yes will allow the kernel to do irq load balancing.
- Saying no will keep the kernel from doing irq load balancing.
+ Saying yes will allow the kernel to do irq load balancing;
+ but it generates too many CPU wakeups, eating power, and
+ is better done in userspace.
+
+ Say N.
# turning this on wastes a bunch of space.
# Summit needs it only when NUMA is on
}}}
So this option has to be unset, and the relevant userspace added.
--
Ticket URL: <http://wiki.linuxfromscratch.org/livecd/ticket/1760>
LiveCD Trac <http://wiki.linuxfromscratch.org/livecd/>
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