#include "suricata.h"
#include "util-debug.h"
#include "util-hugepages.h"
#include "util-path.h"

Include dependency graph for util-hugepages.c:

Typedefs
typedef enum OSHugepageAction_	OSHugepageAction

Enumerations
enum	OSHugepageAction_ { OS_UNKNOWN , OS_LINUX_SYS_DEVICES }

Functions
void	SystemHugepageSnapshotDestroy (SystemHugepageSnapshot *s)

SystemHugepageSnapshot *	SystemHugepageSnapshotCreate (void)
	The function creates a snapshot of the system's hugepage usage per NUMA node and per hugepage size. The snapshot is used to evaluate the system's hugepage usage after initialization of Suricata.

void	SystemHugepageEvaluateHugepages (SystemHugepageSnapshot pre_s, SystemHugepageSnapshot post_s)
	The function compares two hugepage snapshots and prints out recommendations for hugepage configuration.

Detailed Description

Author: Lukas Sismis lsism.nosp@m.is@o.nosp@m.isf.n.nosp@m.et

Definition in file util-hugepages.c.

Typedef Documentation

◆ OSHugepageAction

typedef enum OSHugepageAction_ OSHugepageAction

Enumeration Type Documentation

◆ OSHugepageAction_

enum OSHugepageAction_

Enumerator
OS_UNKNOWN
OS_LINUX_SYS_DEVICES

Definition at line 40 of file util-hugepages.c.

Function Documentation

◆ SystemHugepageEvaluateHugepages()

void SystemHugepageEvaluateHugepages	(	SystemHugepageSnapshot *	pre_s,
		SystemHugepageSnapshot *	post_s
	)

The function compares two hugepage snapshots and prints out recommendations for hugepage configuration.

Parameters

[in]	pre_s	a pointer to the snapshot taken before Suricata initialization
[in]	post_s	a pointer to the snapshot taken after Suricata initialization

Definition at line 363 of file util-hugepages.c.

References FatalError, HugepageInfo::free, NodeInfo::hugepages, SystemHugepageSnapshot::nodes, NodeInfo::num_hugepage_sizes, SystemHugepageSnapshot::num_nodes, SCLogDebug, SCLogPerf, SCLogWarning, and HugepageInfo::size_kb.

Referenced by SuricataPostInit().

Here is the caller graph for this function:

◆ SystemHugepageSnapshotCreate()

SystemHugepageSnapshot * SystemHugepageSnapshotCreate ( void )

The function creates a snapshot of the system's hugepage usage per NUMA node and per hugepage size. The snapshot is used to evaluate the system's hugepage usage after initialization of Suricata.