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
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#ifndef __INCLUDE_GUARD_IRQBALANCE_H_
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#define __INCLUDE_GUARD_IRQBALANCE_H_
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#include "constants.h"
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#include "cpumask.h"
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#include <stdint.h>
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#include <glib.h>
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#include "types.h"
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#include <numa.h>
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struct interrupt;
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extern int package_count;
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extern int cache_domain_count;
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extern int core_count;
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extern char *classes[];
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extern int map_class_to_level[7];
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extern int class_counts[7];
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extern int debug_mode;
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extern int power_mode;
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extern int need_cpu_rescan;
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extern int one_shot_mode;
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extern GList *interrupts;
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extern void parse_cpu_tree(void);
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extern void clear_work_stats(void);
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extern void parse_proc_interrupts(void);
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extern void set_interrupt_count(int number, uint64_t count);
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extern void set_msi_interrupt_numa(int number, char *devname);
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extern void add_interrupt_count(int number, uint64_t count, int type);
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extern int find_class(struct interrupt *irq, char *string);
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extern void add_interrupt_numa(int number, cpumask_t mask, int node_num, int type);
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int dev_to_node(char *devname);
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void calculate_workload(void);
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void reset_counts(void);
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void dump_workloads(void);
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void sort_irq_list(void);
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void calculate_placement(void);
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void dump_tree(void);
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void activate_mapping(void);
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void account_for_nic_stats(void);
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void check_power_mode(void);
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void clear_cpu_tree(void);
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void pci_numa_scan(void);
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#endif
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