From: jpr <jpr>
Date: Tue, 10 May 2005 12:12:02 +0000 (+0000)
Subject: To print the CPU time with and without loading Sequences and Shadow groups.
X-Git-Tag: Version1.2.bp~727
X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=commitdiff_plain;h=9384d2a0192095e405f4c87b0a888bfc0cde118f;p=gdcm.git

To print the CPU time with and without loading Sequences and Shadow groups.
Displayed values are a little bit strange ...
---

diff --git a/Example/TestPrintTime.cxx b/Example/TestPrintTime.cxx
new file mode 100644
index 00000000..35ddc5a1
--- /dev/null
+++ b/Example/TestPrintTime.cxx
@@ -0,0 +1,137 @@
+/*=========================================================================
+                                                                                
+  Program:   gdcm
+  Module:    $RCSfile: TestPrintTime.cxx,v $
+  Language:  C++
+  Date:      $Date: 2005/05/10 12:12:02 $
+  Version:   $Revision: 1.1 $
+                                                                                
+  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
+  l'Image). All rights reserved. See Doc/License.txt or
+  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
+                                                                                
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+                                                                                
+=========================================================================*/
+
+// TODO : check what's *actually* usefull
+
+#include "gdcmFile.h"
+#include "gdcmUtil.h"
+#include "gdcmCommon.h"
+
+#include <iostream>
+#include <time.h>
+#include <sys/times.h>
+
+#include <iomanip> // for std::ios::left, ...
+
+// Where is it?
+#define CLK_TCK 1
+
+
+//Generated file:
+#include "gdcmDataImages.h"
+int main(int, char *[])
+{
+   clock_t r1, r2, r3, r4;
+   struct tms tms1, tms2, tms3, tms4;
+   gdcm::File *e1;
+
+   //std::ostream os = std::cout;
+   //std::ostringstream s;
+
+   int i = 0;
+   while( gdcmDataImages[i] != 0 )
+   {
+      std::string filename = GDCM_DATA_ROOT;
+      filename += "/";  //doh!
+      filename += gdcmDataImages[i];
+
+      e1= new gdcm::File( );
+      r1 = times(&tms1);
+      e1->Load( filename );
+      r2 = times(&tms2);
+      if (!e1->IsReadable())
+      std::cout << "-----------Not Readable " << std::endl;
+      delete e1;
+      e1= new gdcm::File( );
+      e1->SetLoadMode( NO_SEQ | NO_SHADOW );
+      r3 = times(&tms3);
+      e1->Load( filename );
+      r4 = times(&tms4);
+      if (!e1->IsReadable())
+         std::cout << "-----------Not Readable " << std::endl;
+      delete e1;
+ 
+      std::cout 
+        << std::setw(60-strlen(gdcmDataImages[i])) << " "
+        << gdcmDataImages[i] << "   " 
+        << (long) ((tms2.tms_utime)  - (tms1.tms_utime)) 
+        << " vs  "
+        << (long) ((tms4.tms_utime)  - (tms3.tms_utime));
+                
+      std::cout << "\twith clock time : " << r2-r1 << " vs " << r4-r3 
+          << std::endl;
+
+      i++;
+   }
+
+   std::cout << "---------------------------------------------------" << std::endl;
+
+   r1 = times(&tms1);
+   for(int k=0;k<1; k++) // run many tiles to increase time ...
+   {
+      i=0;
+      while( gdcmDataImages[i] != 0 )
+      {
+         std::string filename = GDCM_DATA_ROOT;
+         filename += "/";  //doh!
+         filename += gdcmDataImages[i];
+
+         e1= new gdcm::File( );
+         e1->Load( filename );
+         if (!e1->IsReadable())
+            std::cout << "-----------Not Readable " << std::endl;
+         delete e1;
+
+        i++;
+    }
+ 
+ }
+   r2 = times(&tms2);
+
+// ---------------------------
+   r3 = times(&tms3);
+   for(int k=0;k<1; k++)
+   {
+
+     i=0;
+     while( gdcmDataImages[i] != 0 )
+     {
+        std::string filename = GDCM_DATA_ROOT;
+        filename += "/";  //doh!
+        filename += gdcmDataImages[i];
+
+        e1= new gdcm::File( );
+        e1->SetLoadMode( NO_SEQ | NO_SHADOW );
+        e1->Load( filename );
+        if (!e1->IsReadable())
+          std::cout << "-----------Not Readable " << std::endl;
+        delete e1;
+        i++;
+      }
+   }
+    r4 = times(&tms4);
+
+    std::cout  
+          << (long) ((tms2.tms_utime)  - (tms1.tms_utime)) 
+          << "\t\t "
+          << (long) ((tms4.tms_utime)  - (tms3.tms_utime)) 
+          << std::endl;
+          std::cout << "---------------------------------------------------" << std::endl;
+
+   return 0;
+}