pg_rusage.c File Reference

#include "postgres.h"
#include <unistd.h>
#include "utils/pg_rusage.h"

Include dependency graph for pg_rusage.c:

Go to the source code of this file.

Functions
void	pg_rusage_init (PGRUsage *ru0)
const char *	pg_rusage_show (const PGRUsage *ru0)

Function Documentation

pg_rusage_init()

void pg_rusage_init

(

PGRUsage *

ru0

)

Definition at line 27 of file pg_rusage.c.

{
    getrusage(RUSAGE_SELF, &ru0->ru);
    gettimeofday(&ru0->tv, NULL);
}

References fb(), getrusage(), gettimeofday(), and RUSAGE_SELF.

Referenced by copy_table_data(), do_analyze_rel(), heap_vacuum_rel(), PerformWalRecovery(), pg_rusage_show(), reindex_index(), ReindexRelationConcurrently(), and tuplesort_begin_common().

pg_rusage_show()

const char * pg_rusage_show

(

const PGRUsage *

ru0

)

Definition at line 40 of file pg_rusage.c.

{
    static char result[100];
    PGRUsage    ru1;
 
    pg_rusage_init(&ru1);
 
    if (ru1.tv.tv_usec < ru0->tv.tv_usec)
    {
        ru1.tv.tv_sec--;
        ru1.tv.tv_usec += 1000000;
    }
    if (ru1.ru.ru_stime.tv_usec < ru0->ru.ru_stime.tv_usec)
    {
        ru1.ru.ru_stime.tv_sec--;
        ru1.ru.ru_stime.tv_usec += 1000000;
    }
    if (ru1.ru.ru_utime.tv_usec < ru0->ru.ru_utime.tv_usec)
    {
        ru1.ru.ru_utime.tv_sec--;
        ru1.ru.ru_utime.tv_usec += 1000000;
    }
 
    snprintf(result, sizeof(result),
             _("CPU: user: %d.%02d s, system: %d.%02d s, elapsed: %d.%02d s"),
             (int) (ru1.ru.ru_utime.tv_sec - ru0->ru.ru_utime.tv_sec),
             (int) (ru1.ru.ru_utime.tv_usec - ru0->ru.ru_utime.tv_usec) / 10000,
             (int) (ru1.ru.ru_stime.tv_sec - ru0->ru.ru_stime.tv_sec),
             (int) (ru1.ru.ru_stime.tv_usec - ru0->ru.ru_stime.tv_usec) / 10000,
             (int) (ru1.tv.tv_sec - ru0->tv.tv_sec),
             (int) (ru1.tv.tv_usec - ru0->tv.tv_usec) / 10000);
 
    return result;
}

References _, fb(), pg_rusage_init(), and snprintf.

Referenced by copy_table_data(), do_analyze_rel(), dumptuples(), heap_vacuum_rel(), inittapes(), mergeruns(), PerformWalRecovery(), reindex_index(), ReindexRelationConcurrently(), tuplesort_free(), tuplesort_performsort(), and tuplesort_puttuple_common().