Macros
#define	PER_CORE 0

#define	PER_SOCKET 1

#define	PER_SYSTEM 0

Functions
void	PCM_initPerformanceMonitor (const char pcmcfg, const char pcmout)

void	PCM_start ()

void	PCM_stop ()

void	PCM_printResults ()

void	PCM_cleanup ()

void	PCM_accumulate ()

void	PCM_printAccumulators ()

void	PCM_log (char *msg)

Variables
char *	PCM_CONFIG

char *	PCM_OUT

Detailed Description

A set of methods to use Intel Performance Counter Monitor library.

Warning: This tool is only available when compiled with C++ (g++).

Macro Definition Documentation

◆ PER_CORE

#define PER_CORE 0

Is performance monitoring PER_CORE?

Definition at line 25 of file perf_counters.h.

◆ PER_SOCKET

#define PER_SOCKET 1

Is performance monitoring PER_SOCKET?

Definition at line 30 of file perf_counters.h.

◆ PER_SYSTEM

#define PER_SYSTEM 0

Is performance monitoring PER_SYSTEM?

Definition at line 35 of file perf_counters.h.

Function Documentation

◆ PCM_accumulate()

void PCM_accumulate ( )

Accumulates results between last start and stop calls to the internal accumulator state.

Definition at line 335 of file perf_counters.c.

◆ PCM_cleanup()

void PCM_cleanup ( )

Cleans up the PCM state before program shutdown.

Definition at line 334 of file perf_counters.c.

◆ PCM_initPerformanceMonitor()

void PCM_initPerformanceMonitor	(	const char *	pcmcfg,
		const char *	pcmout
	)

Initializes the Intel Performance Counter Monitor instance. If no config is specified, then default counters are used, i.e. instr. retired, cycles, cache misses, etc.

Parameters

pcmcfg	configuration file which determines counters to be used.
pcmout	output file to which PCM results should go, NULL->stdout

Intel PCM is only available from C++

Definition at line 330 of file perf_counters.c.

◆ PCM_log()

void PCM_log ( char * msg )

Logs a message to the performance counters output file (default is stdout)

Definition at line 337 of file perf_counters.c.

◆ PCM_printAccumulators()

void PCM_printAccumulators ( )

Prints out accumlated counters so far (upto the last PCM_accumulate() call)

Definition at line 336 of file perf_counters.c.

◆ PCM_printResults()

void PCM_printResults ( )

Prints out performance counter results to the given output file.

Parameters

perf_outfile output file for performance results.

Definition at line 333 of file perf_counters.c.

◆ PCM_start()

void PCM_start ( )

Starts the performance counters.

Definition at line 331 of file perf_counters.c.

◆ PCM_stop()

void PCM_stop ( )

Stops collecting performance counter events.

Definition at line 332 of file perf_counters.c.

Variable Documentation

◆ PCM_CONFIG

char* PCM_CONFIG

extern

custom performance counters config file, if NULL no custom config.

◆ PCM_OUT

char* PCM_OUT