565db19e3d
This patch enhances irqbalance so that, it considers the proximity of devices to cpus when making irq mapping decisions. In large numa systems this will cause irqs to be biased such that they have unique affinity for cpus on the same numa node as the device triggering them. Resolves: http://code.google.com/p/irqbalance/issues/detail?id=17 Thanks to Petr Holasek for authoring the patch git-svn-id: https://irqbalance.googlecode.com/svn/trunk@34 46b42954-3823-0410-bd82-eb80b452c9b5
32 lines
792 B
C
32 lines
792 B
C
#ifndef __INCLUDE_GUARD_CONSTANTS_H
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#define __INCLUDE_GUARD_CONSTANTS_H
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/* interval between rebalance attempts in seconds */
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#define SLEEP_INTERVAL 10
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/* NUMA topology refresh intervals, in units of SLEEP_INTERVAL */
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#define NUMA_REFRESH_INTERVAL 32
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/* NIC interrupt refresh interval, in units of SLEEP_INTERVAL */
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#define NIC_REFRESH_INTERVAL 32
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/* minimum number of interrupts since boot for an interrupt to matter */
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#define MIN_IRQ_COUNT 20
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/* balancing tunings */
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#define CROSS_PACKAGE_PENALTY 3000
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#define NUMA_PENALTY 500
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#define POWER_MODE_PACKAGE_THRESHOLD 20000
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#define CLASS_VIOLATION_PENTALTY 6000
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#define MSI_CACHE_PENALTY 10000
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#define CORE_SPECIFIC_THRESHOLD 5000
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/* power mode */
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#define POWER_MODE_SOFTIRQ_THRESHOLD 20
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#define POWER_MODE_HYSTERESIS 3
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#endif
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