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678eb19d71
---------------------- ./MANIFEST ./src/H5Ssimp.c [REMOVED] ./src/Makefile.in Removed H5Ssimp.c since it was no longer used. ./bin/snapshot Fixed a few minor things to make it work better. ./src/H5D.c Cleaned up H5D_read() and H5D_write() by combining some code in each. Added timing calls around the data space calls when H5S_DEBUG is defined. ./src/H5S.c ./src/H5Sall.c ./src/H5Shyper.c ./src/H5Spoint.c ./src/H5Sprivate.h Changed H5S_find() so it returns a table entry again instead of copying the data into a caller-supplied buffer. This allows the timers to be stored in the table and updated by the caller. Added H5S_register() to register new table entries and added entry creation to all the H5S selection methods. Also changed lots of global functions to static functions. ./src/H5Fistore.c Fixed a memory bug in the raw data cache.
355 lines
8.9 KiB
C
355 lines
8.9 KiB
C
/*
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* Copyright (C) 1998 NCSA
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* All rights reserved.
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*
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* Programmer: Robb Matzke <matzke@llnl.gov>
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* Thursday, March 12, 1998
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*/
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#undef NDEBUG
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#include <assert.h>
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#include <fcntl.h>
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#include <hdf5.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#define RAW_FILE_NAME "iopipe.raw"
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#define HDF5_FILE_NAME "iopipe.h5"
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#define HEADING "%-16s"
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#define PROGRESS '='
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#if 0
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/* Normal testing */
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#define REQUEST_SIZE_X 4579
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#define REQUEST_SIZE_Y 4579
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#define NREAD_REQUESTS 45
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#define NWRITE_REQUESTS 45
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#else
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/* Speedy testing */
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#define REQUEST_SIZE_X 1000
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#define REQUEST_SIZE_Y 1000
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#define NREAD_REQUESTS 45
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#define NWRITE_REQUESTS 45
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#endif
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/*-------------------------------------------------------------------------
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* Function: print_stats
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*
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* Purpose: Prints statistics
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*
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* Return: void
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*
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* Programmer: Robb Matzke
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* Thursday, March 12, 1998
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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static void
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print_stats (const char *prefix,
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struct rusage *r_start, struct rusage *r_stop,
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struct timeval *t_start, struct timeval *t_stop,
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size_t nbytes)
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{
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double e_time, bw;
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#ifdef HAVE_GETRUSAGE
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double u_time, s_time;
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u_time = ((double)(r_stop->ru_utime.tv_sec)+
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(double)(r_stop->ru_utime.tv_usec)/1000000.0) -
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((double)(r_start->ru_utime.tv_sec)+
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(double)(r_start->ru_utime.tv_usec)/1000000.0);
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s_time = ((double)(r_stop->ru_stime.tv_sec)+
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(double)(r_stop->ru_stime.tv_usec)/1000000.0) -
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((double)(r_start->ru_stime.tv_sec)+
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(double)(r_start->ru_stime.tv_usec)/1000000.0);
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#endif
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e_time = ((double)(t_stop->tv_sec)+
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(double)(t_stop->tv_usec)/1000000.0) -
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((double)(t_start->tv_sec)+
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(double)(t_start->tv_usec)/1000000.0);
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bw = (double)nbytes / e_time;
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#ifdef HAVE_GETRUSAGE
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printf (HEADING "%1.2fuser %1.2fsystem %1.2felapsed %1.2fMB/s\n",
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prefix, u_time, s_time, e_time, bw/(1024*1024));
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#else
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printf (HEADING "%1.2felapsed %1.2fMB/s\n",
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prefix, e_time, bw/(1024*1024));
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#endif
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}
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/*-------------------------------------------------------------------------
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* Function: synchronize
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*
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* Purpose:
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*
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* Return: void
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*
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* Programmer: Robb Matzke
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* Thursday, March 12, 1998
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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static void
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synchronize (void)
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{
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#ifdef HAVE_SYSTEM
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system ("sync");
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system ("df >/dev/null");
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#if 0
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/*
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* This works well on Linux to get rid of all cached disk buffers. The
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* number should be approximately the amount of RAM in MB. Do not
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* include swap space in that amount or the command will fail.
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*/
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system ("/sbin/swapout 128");
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#endif
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#endif
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}
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/*-------------------------------------------------------------------------
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* Function: main
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*
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* Purpose:
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*
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* Return: Success:
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*
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* Failure:
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*
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* Programmer: Robb Matzke
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* Thursday, March 12, 1998
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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int
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main (void)
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{
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static hsize_t size[2] = {REQUEST_SIZE_X, REQUEST_SIZE_Y};
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static int nread=NREAD_REQUESTS, nwrite=NWRITE_REQUESTS;
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unsigned char *the_data = NULL;
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hid_t file, dset, file_space=-1;
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herr_t status;
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struct rusage r_start, r_stop;
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struct timeval t_start, t_stop;
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int i, fd;
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hssize_t n;
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off_t offset;
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hssize_t start[2];
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hsize_t count[2];
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printf ("I/O request size is %1.1fMB\n",
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((double)(size[0])*(double)(size[1]))/(1024.0*1024));
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/* Open the files */
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file = H5Fcreate (HDF5_FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
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assert (file>=0);
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fd = open (RAW_FILE_NAME, O_RDWR|O_CREAT|O_TRUNC, 0666);
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assert (fd>=0);
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/* Create the dataset */
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file_space = H5Screate_simple (2, size, size);
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assert (file_space>=0);
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dset = H5Dcreate (file, "dset", H5T_NATIVE_UCHAR, file_space, H5P_DEFAULT);
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assert (dset>=0);
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the_data = malloc ((size_t)(size[0]*size[1]));
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/*initial fill for lazy malloc*/
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memset (the_data, 0xAA, (size_t)(size[0]*size[1]));
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/* Fill raw */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "fill raw");
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for (i=0; i<nwrite; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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memset (the_data, 0xAA, (size_t)(size[0]*size[1]));
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("fill raw",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Fill hdf5 */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "fill hdf5");
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for (i=0; i<nread; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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status = H5Dread (dset, H5T_NATIVE_UCHAR, file_space, file_space,
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H5P_DEFAULT, the_data);
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assert (status>=0);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("fill hdf5",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Write the raw dataset */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "out raw");
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for (i=0; i<nwrite; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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offset = lseek (fd, 0, SEEK_SET);
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assert (0==offset);
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n = write (fd, the_data, (size_t)(size[0]*size[1]));
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assert (n>=0 && (size_t)n==size[0]*size[1]);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("out raw",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Write the hdf5 dataset */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "out hdf5");
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for (i=0; i<nwrite; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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status = H5Dwrite (dset, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL,
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H5P_DEFAULT, the_data);
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assert (status>=0);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("out hdf5",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Read the raw dataset */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "in raw");
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for (i=0; i<nread; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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offset = lseek (fd, 0, SEEK_SET);
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assert (0==offset);
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n = read (fd, the_data, (size_t)(size[0]*size[1]));
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assert (n>=0 && (size_t)n==size[0]*size[1]);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("in raw",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Read the hdf5 dataset */
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "in hdf5");
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for (i=0; i<nread; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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status = H5Dread (dset, H5T_NATIVE_UCHAR, file_space, file_space,
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H5P_DEFAULT, the_data);
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assert (status>=0);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("in hdf5",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*size[0]*size[1]));
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/* Read hyperslab */
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assert (size[0]>20 && size[1]>20);
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start[0] = start[1] = 10;
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count[0] = count[1] = size[0]-20;
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status = H5Sselect_hyperslab (file_space, H5S_SELECT_SET, start, NULL, count, NULL);
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assert (status>=0);
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synchronize ();
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_start);
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#endif
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gettimeofday (&t_start, NULL);
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fprintf (stderr, HEADING, "in hdf5 partial");
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for (i=0; i<nread; i++) {
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putc (PROGRESS, stderr);
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fflush (stderr);
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status = H5Dread (dset, H5T_NATIVE_UCHAR, file_space, file_space,
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H5P_DEFAULT, the_data);
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assert (status>=0);
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}
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#ifdef HAVE_GETRUSAGE
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getrusage (RUSAGE_SELF, &r_stop);
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#endif
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gettimeofday (&t_stop, NULL);
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putc ('\n', stderr);
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print_stats ("in hdf5 partial",
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&r_start, &r_stop, &t_start, &t_stop,
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(size_t)(nread*count[0]*count[1]));
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/* Close everything */
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close (fd);
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H5Dclose (dset);
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H5Sclose (file_space);
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H5Fclose (file);
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return 0;
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}
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