utils.h File Reference

#include <assert.h>
#include <chrono>
#include <map>
#include "hermes_types.h"

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Classes
struct	hermes::testing::TargetViewState

Namespaces
	hermes

Macros
#define	HERMES_BEGIN_TIMED_BLOCK(func_name)
#define	HERMES_END_TIMED_BLOCK()

Enumerations
enum class	hermes::testing::BlobSizeRange {   kSmall , kMedium , kLarge , kXLarge ,   kHuge }

Functions
size_t	hermes::RoundUpToMultiple (size_t val, size_t multiple)
size_t	hermes::RoundDownToMultiple (size_t val, size_t multiple)
void	hermes::InitDefaultConfig (Config *config)
void	hermes::FailedLibraryCall (std::string func)
TargetViewState	hermes::testing::InitDeviceState (u64 total_target, bool homo_dist)
u64	hermes::testing::UpdateDeviceState (PlacementSchema &schema, TargetViewState &node_state)
void	hermes::testing::PrintNodeState (TargetViewState &node_state)
std::vector< TargetID >	hermes::testing::GetDefaultTargets (size_t n)
std::vector< size_t >	hermes::testing::GenFixedTotalBlobSize (size_t total_size, BlobSizeRange range)

Detailed Description

Utility classes and functions for Hermes.

Macro Definition Documentation

HERMES_BEGIN_TIMED_BLOCK

#define HERMES_BEGIN_TIMED_BLOCK

(

func_name

)

begin timing

HERMES_END_TIMED_BLOCK

#define HERMES_END_TIMED_BLOCK

(

)

end timing

Enumeration Type Documentation

BlobSizeRange

enum hermes::testing::BlobSizeRange

strong

A class to represent BLOB size

Function Documentation

InitDeviceState()

TargetViewState hermes::testing::InitDeviceState	(	u64	total_target = 4,
		bool	homo_dist = true
	)

Initialize device state with default values.

Parameters

total_target	Total number of target.
homo_dist	The device distribution is homogeneous or not.

Returns

The TargetViewState struct with device information.

Use Megabytes

Use Megabytes/Sec

< MB

< MB

UpdateDeviceState()

u64 hermes::testing::UpdateDeviceState	(	PlacementSchema &	schema,
		TargetViewState &	node_state
	)

Update device state.

Parameters

schema	The PlacementSchema return from a data placement engine calculation.
node_state	The device status after schema is placed.

Returns

Total size of placed blobs.

PrintNodeState()

void hermes::testing::PrintNodeState

(

TargetViewState &

node_state

)

Print device state.

Parameters

node_state

The TargetViewState with current state.

< MB

GetDefaultTargets()

std::vector< TargetID > hermes::testing::GetDefaultTargets

(

size_t

n

)

Get default targets.

Parameters

n	The number of target type.

@

Returns

The vector of default targets.

GenFixedTotalBlobSize()

std::vector< size_t > hermes::testing::GenFixedTotalBlobSize	(	size_t	total_size,
		BlobSizeRange	range
	)

Generate a vector of blob size with fixed total blob size.

Parameters

total_size	The number of target type.
range	The blob size range for test.

@

Returns

The vector blob size.