![Christoph Lameter](/assets/img/avatar_default.png)
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>
26 lines
487 B
C
26 lines
487 B
C
#include <linux/config.h>
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#ifndef _ASMi386_PARAM_H
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#define _ASMi386_PARAM_H
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#ifdef __KERNEL__
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# define HZ CONFIG_HZ /* Internal kernel timer frequency */
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# define USER_HZ 100 /* .. some user interfaces are in "ticks" */
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# define CLOCKS_PER_SEC (USER_HZ) /* like times() */
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#endif
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#ifndef HZ
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#define HZ 100
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#endif
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#define EXEC_PAGESIZE 4096
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#ifndef NOGROUP
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#define NOGROUP (-1)
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#endif
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#define MAXHOSTNAMELEN 64 /* max length of hostname */
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#define COMMAND_LINE_SIZE 256
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#endif
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