util-affinity.c File Reference

#include "suricata-common.h"
#include "util-affinity.h"
#include "conf.h"
#include "runmodes.h"
#include "util-cpu.h"
#include "util-byte.h"
#include "util-debug.h"

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Macros
#define	_THREAD_AFFINITY

Functions
ThreadsAffinityType *	GetAffinityTypeFromName (const char *name)
	find affinity by its name More...
void	BuildCpusetWithCallback (const char *name, SCConfNode *node, void(*Callback)(int i, void *data), void *data)
void	AffinitySetupLoadFromConfig (void)
	Extract cpu affinity configuration from current config file. More...
uint16_t	AffinityGetNextCPU (ThreadsAffinityType *taf)
	Return next cpu to use for a given thread family. More...
uint16_t	UtilAffinityGetAffinedCPUNum (ThreadsAffinityType *taf)

Variables
ThreadsAffinityType	thread_affinity [MAX_CPU_SET]
int	thread_affinity_init_done = 0

Detailed Description

Author

Eric Leblond eric@.nosp@m.regi.nosp@m.t.org

CPU affinity related code and helper.

Definition in file util-affinity.c.

Macro Definition Documentation

_THREAD_AFFINITY

#define _THREAD_AFFINITY

Definition at line 27 of file util-affinity.c.

Function Documentation

AffinityGetNextCPU()

uint16_t AffinityGetNextCPU

(

ThreadsAffinityType *

taf

)

Return next cpu to use for a given thread family.

Return values

the	cpu to used given by its id

Definition at line 279 of file util-affinity.c.

References ThreadsAffinityType_::cpu_set, ThreadsAffinityType_::lcpu, SCLogDebug, SCLogError, SCMutexLock, SCMutexUnlock, ThreadsAffinityType_::taf_mutex, and UtilCpuGetNumProcessorsOnline().

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AffinitySetupLoadFromConfig()

void AffinitySetupLoadFromConfig

(

void

)

Extract cpu affinity configuration from current config file.

Definition at line 161 of file util-affinity.c.

Referenced by RunModeInitializeThreadSettings().

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BuildCpusetWithCallback()

void BuildCpusetWithCallback	(	const char *	name,
		SCConfNode *	node,
		void(*)(int i, void *data)	Callback,
		void *	data
	)

Definition at line 97 of file util-affinity.c.

References name, next, SCLogError, StringParseUint32(), TAILQ_FOREACH, UtilCpuGetNumProcessorsOnline(), and SCConfNode_::val.

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GetAffinityTypeFromName()

ThreadsAffinityType* GetAffinityTypeFromName

(

const char *

name

)

find affinity by its name

Return values

a	pointer to the affinity or NULL if not found

Definition at line 68 of file util-affinity.c.

References MAX_CPU_SET, name, and thread_affinity.

UtilAffinityGetAffinedCPUNum()

uint16_t UtilAffinityGetAffinedCPUNum

(

ThreadsAffinityType *

taf

)

Definition at line 306 of file util-affinity.c.

References ThreadsAffinityType_::cpu_set, SCMutexLock, SCMutexUnlock, ThreadsAffinityType_::taf_mutex, and UtilCpuGetNumProcessorsOnline().

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Variable Documentation

thread_affinity

ThreadsAffinityType thread_affinity[MAX_CPU_SET]

Initial value:

= {
    {
        .name = "receive-cpu-set",
        .mode_flag = EXCLUSIVE_AFFINITY,
        .prio = PRIO_MEDIUM,
        .lcpu = 0,
    },
    {
        .name = "worker-cpu-set",
        .mode_flag = EXCLUSIVE_AFFINITY,
        .prio = PRIO_MEDIUM,
        .lcpu = 0,
    },
    {
        .name = "verdict-cpu-set",
        .mode_flag = BALANCED_AFFINITY,
        .prio = PRIO_MEDIUM,
        .lcpu = 0,
    },
    {
        .name = "management-cpu-set",
        .mode_flag = BALANCED_AFFINITY,
        .prio = PRIO_MEDIUM,
        .lcpu = 0,
    },
 
}

store thread affinity mode for all type of threads

Definition at line 34 of file util-affinity.c.

Referenced by GetAffinityTypeFromName(), and TmThreadGetNbThreads().

thread_affinity_init_done

int thread_affinity_init_done = 0

Definition at line 62 of file util-affinity.c.