#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "genC.h"
#include "misc.h"

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Macros
#define	USAGE_STACK_SIZE 10
	for USAGE information More...

Functions
static void	printf_time (FILE f, struct timeval p)
	available bucket More...

static void	printf_time_delta (FILE f, struct timeval begin, struct timeval *end)

static void	printf_usage_delta (FILE f, struct rusage begin, struct rusage *end)
	simply dump all available information... More...

void	push_performance_spy ()
	perf_spy.c More...

void	pop_performance_spy (FILE *f, string msg)

Variables
static struct rusage	usage_stack [USAGE_STACK_SIZE]

static int	stack_index = 0

Macro Definition Documentation

◆ USAGE_STACK_SIZE

#define USAGE_STACK_SIZE 10

for USAGE information

Definition at line 43 of file perf_spy.c.

Function Documentation

◆ pop_performance_spy()

void pop_performance_spy	(	FILE *	f,
		string	msg
	)

Parameters

msg sg

Definition at line 97 of file perf_spy.c.

 {
     struct rusage current;
     message_assert("stack not empty", stack_index>0);
     fprintf(f, "[performance_spy] %s\n", msg);
  
     getrusage(RUSAGE_SELF, &current);
     fprintf(f, "self:\n");
     printf_usage_delta(f, &usage_stack[--stack_index], &current);
     fprintf(f, "children:\n");
     getrusage(RUSAGE_CHILDREN, &current);
     printf_usage_delta(f, &usage_stack[--stack_index], &current);
 }

References current, f(), fprintf(), message_assert, printf_usage_delta(), stack_index, and usage_stack.

Referenced by hpf_remapping().

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◆ printf_time()

static void printf_time	(	FILE *	f,
		struct timeval *	p
	)

static

available bucket

Definition at line 48 of file perf_spy.c.

 {
     fprintf(f, "%.3f", (double) p->tv_sec + (double) p->tv_usec/1e6);
 }

References f(), and fprintf().

Referenced by printf_time_delta(), and printf_usage_delta().

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◆ printf_time_delta()

static void printf_time_delta	(	FILE *	f,
		struct timeval *	begin,
		struct timeval *	end
	)

static

Definition at line 56 of file perf_spy.c.

 {
     struct timeval delta;
     delta.tv_sec  = end->tv_sec - begin->tv_sec;
     delta.tv_usec = end->tv_usec - begin->tv_usec;
     printf_time(f, &delta);
 }

References end, f(), and printf_time().

Referenced by printf_usage_delta().

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◆ printf_usage_delta()

static void printf_usage_delta	(	FILE *	f,
		struct rusage *	begin,
		struct rusage *	end
	)

static

simply dump all available information...

Definition at line 70 of file perf_spy.c.

 {
     fprintf(f, " user: "); 
     printf_time_delta(f, &begin->ru_utime, &end->ru_utime);
     fprintf(f, "/");
     printf_time(f, &end->ru_utime);
     fprintf(f, "s syst: "); 
     printf_time_delta(f, &begin->ru_stime, &end->ru_stime);
     fprintf(f, "/");
     printf_time(f, &end->ru_stime);
     fprintf(f, "s\n page faults major: %ld/%ld minor: %ld/%ld\n",
             end->ru_majflt-begin->ru_majflt, end->ru_majflt,
             end->ru_minflt-begin->ru_minflt, end->ru_minflt);
 }

References end, f(), fprintf(), printf_time(), and printf_time_delta().

Referenced by pop_performance_spy().

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◆ push_performance_spy()

void push_performance_spy ( void )

perf_spy.c

Definition at line 89 of file perf_spy.c.

 {
     message_assert("stack not full", stack_index<USAGE_STACK_SIZE);
     getrusage(RUSAGE_CHILDREN, &usage_stack[stack_index++]);
     getrusage(RUSAGE_SELF, &usage_stack[stack_index++]);
 }