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Data Structures
struct	HugepageInfo

struct	NodeInfo

struct	SystemHugepageSnapshot

Functions
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	SystemHugepageSnapshotDestroy (SystemHugepageSnapshot *s)

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.h.

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().

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◆ 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.