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Diffstat (limited to 'tools/perform/sio_timer.c')
| -rw-r--r-- | tools/perform/sio_timer.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/tools/perform/sio_timer.c b/tools/perform/sio_timer.c new file mode 100644 index 0000000..4e42ee6 --- /dev/null +++ b/tools/perform/sio_timer.c @@ -0,0 +1,197 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the files COPYING and Copyright.html. COPYING can be found at the root * + * of the source code distribution tree; Copyright.html can be found at the * + * root level of an installed copy of the electronic HDF5 document set and * + * is linked from the top-level documents page. It can also be found at * + * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Purpose: + * + * This is a module of useful timing functions for performance testing. + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "sio_timer.h" + + +#include "sio_perf.h" + +/* + * The number to divide the tv_usec field with to get a nice decimal to add to + * the number of seconds. + */ +#define MICROSECOND 1000000.0 + +/* global variables */ +sio_time *timer_g; /* timer: global for stub functions */ + +/* + * Function: sub_time + * Purpose: Struct two time values, and return the difference, in microseconds + * + * Note that the function assumes that a > b + * Programmer: Leon Arber, 1/27/06 + */ +static double sub_time(struct timeval* a, struct timeval* b) +{ + return (((double)a->tv_sec + + ((double)a->tv_usec) / MICROSECOND) - + ((double)b->tv_sec + + ((double)b->tv_usec) / MICROSECOND)); +} + + +/* + * Function: sio_time_new + * Purpose: Build us a brand, spankin', new performance time object. + * The object is a black box to the user. + * Return: Pointer to sio_time object + * Programmer: Bill Wendling, 01. October 2001 + * Modifications: + */ +sio_time * +sio_time_new(void) +{ + sio_time *pt = (sio_time *)calloc(1, sizeof(struct sio_time_)); + + /* set global timer variable */ + timer_g = pt; + + return pt; +} + +/* + * Function: sio_time_destroy + * Purpose: Remove the memory allocated for the sio_time object. Only + * need to call on a pointer allocated with the ``sio_time_new'' + * function. + * Return: Nothing + * Programmer: Bill Wendling, 01. October 2001 + * Modifications: + */ +void +sio_time_destroy(sio_time *pt) +{ + HDfree(pt); + /* reset the global timer pointer too. */ + timer_g = NULL; +} + + + +/* + * Function: set_time + * Purpose: Set the time in a ``sio_time'' object. + * Return: Pointer to the passed in ``sio_time'' object. + * Programmer: Bill Wendling, 01. October 2001 + * Modifications: + */ +sio_time * +set_time(sio_time *pt, timer_type t, int start_stop) +{ + if (pt) { + if (start_stop == TSTART) { + HDgettimeofday(&pt->sys_timer[t], NULL); + + /* When we start the timer for HDF5_FINE_WRITE_FIXED_DIMS or HDF5_FINE_READ_FIXED_DIMS + * we compute the time it took to only open the file */ + if(t == HDF5_FINE_WRITE_FIXED_DIMS) + pt->total_time[HDF5_FILE_WRITE_OPEN] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_GROSS_WRITE_FIXED_DIMS])); + else if(t == HDF5_FINE_READ_FIXED_DIMS) + pt->total_time[HDF5_FILE_READ_OPEN] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_GROSS_READ_FIXED_DIMS])); + + + } else { + struct timeval sys_t; + + HDgettimeofday(&sys_t, NULL); + pt->total_time[t] += sub_time(&sys_t, &(pt->sys_timer[t])); + +/* ((double)sys_t.tv_sec + + ((double)sys_t.tv_usec) / MICROSECOND) - + ((double)pt->sys_timer[t].tv_sec + + ((double)pt->sys_timer[t].tv_usec) / MICROSECOND);*/ + + /* When we stop the timer for HDF5_GROSS_WRITE_FIXED_DIMS or HDF5_GROSS_READ_FIXED_DIMS + * we compute the time it took to close the file after the last read/write finished */ + if(t == HDF5_GROSS_WRITE_FIXED_DIMS) + pt->total_time[HDF5_FILE_WRITE_CLOSE] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_FINE_WRITE_FIXED_DIMS])); + else if(t == HDF5_GROSS_READ_FIXED_DIMS) + pt->total_time[HDF5_FILE_READ_CLOSE] += sub_time(&(pt->sys_timer[t]), &(pt->sys_timer[HDF5_FINE_READ_FIXED_DIMS])); + + } + + if (sio_debug_level >= 4) { + const char *msg; + + switch (t) { + case HDF5_FILE_OPENCLOSE: + msg = "File Open/Close"; + break; + case HDF5_DATASET_CREATE: + msg = "Dataset Create"; + break; + case HDF5_MPI_WRITE: + msg = "MPI Write"; + break; + case HDF5_MPI_READ: + msg = "MPI Read"; + break; + case HDF5_FINE_WRITE_FIXED_DIMS: + msg = "Fine Write"; + break; + case HDF5_FINE_READ_FIXED_DIMS: + msg = "Fine Read"; + break; + case HDF5_GROSS_WRITE_FIXED_DIMS: + msg = "Gross Write"; + break; + case HDF5_GROSS_READ_FIXED_DIMS: + msg = "Gross Read"; + break; + case HDF5_RAW_WRITE_FIXED_DIMS: + msg = "Raw Write"; + break; + case HDF5_RAW_READ_FIXED_DIMS: + msg = "Raw Read"; + break; + default: + msg = "Unknown Timer"; + break; + } + + fprintf(output, " %s %s: %.2f\n", msg, + (start_stop == TSTART ? "Start" : "Stop"), + pt->total_time[t]); + } + } + + return pt; +} + +/* + * Function: get_time + * Purpose: Get the time from a ``sio_time'' object. + * Return: The number of seconds as a DOUBLE. + * Programmer: Bill Wendling, 01. October 2001 + * Modifications: + */ +double +get_time(sio_time *pt, timer_type t) +{ + return pt->total_time[t]; +} +#ifdef STANDALONE +#include "sio_standalone.c" +#endif + |