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| author | Christoph Lameter <christoph@lameter.com> | 2005-06-23 00:08:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:10 -0700 |
| commit | 59121003721a8fad11ee72e646fd9d3076b5679c (patch) | |
| tree | c9279c1b74cce81a9dbaf1e7fd038cd55caf26f2 /include/asm-x86_64 | |
| parent | 799d19f6ec5ca2102c61122f5219a17f1c4e961a (diff) | |
| download | blackbird-op-linux-59121003721a8fad11ee72e646fd9d3076b5679c.tar.gz blackbird-op-linux-59121003721a8fad11ee72e646fd9d3076b5679c.zip | |
[PATCH] i386: Selectable Frequency of the Timer Interrupt
Make the timer frequency selectable. The timer interrupt may cause bus
and memory contention in large NUMA systems since the interrupt occurs
on each processor HZ times per second.
Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64')
| -rw-r--r-- | include/asm-x86_64/param.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/asm-x86_64/param.h b/include/asm-x86_64/param.h index b707f0568c9e..40b11937180d 100644 --- a/include/asm-x86_64/param.h +++ b/include/asm-x86_64/param.h @@ -1,9 +1,11 @@ +#include <linux/config.h> + #ifndef _ASMx86_64_PARAM_H #define _ASMx86_64_PARAM_H #ifdef __KERNEL__ -# define HZ 1000 /* Internal kernel timer frequency */ -# define USER_HZ 100 /* .. some user interfaces are in "ticks */ +# define HZ CONFIG_HZ /* Internal kernel timer frequency */ +# define USER_HZ 100 /* .. some user interfaces are in "ticks */ #define CLOCKS_PER_SEC (USER_HZ) /* like times() */ #endif |
