[MN-dev] [mndiff]: r89 - trunk/noe/test.c

[michael]

Author: michael
Date: Tue Oct 21 15:33:43 2008
New Revision: 89

Log:
add benchmarking code


Modified:
   trunk/noe/test.c

Modified: trunk/noe/test.c
==============================================================================
--- trunk/noe/test.c	(original)
+++ trunk/noe/test.c	Tue Oct 21 15:33:43 2008
@@ -285,6 +285,31 @@ STOP_TIMER}
         }
     }
     }
+
+    //Encoding is implemented as erasure decoding thus we dont need to
+    //benchmark them seperately
+    printf("\n\nencoding / erasure decoding benchmarking\n"); fflush(stdout);
+    for(codeBits=8; codeBits<=SHIFT; codeBits++){
+        decimate= SHIFT - codeBits;
+        for(i=1; i<(SIZE/2)>>decimate; i+=i){
+            int n= (SIZE - 1)>>decimate;
+            int k= n - i;
+            GFF4Element code[n];
+            GFF4Element parityLocator[i+2];
+            int pass;
+            uint64_t end, start= rdtsc();
+
+            parityLocator[0]= 0;
+            for(pass=10; pass; pass--){
+                for(j=0; j<k; j++)
+                    code[j]= (pass*j+123) & MASK;
+
+                EXT(rsEncode)(code, parityLocator, i, codeBits);
+            }
+            end= rdtsc();
+            printf("%Ld cpu cycles for (%d, %d) code, %f bytes/cycle\n", (end-start)/10, n, k, 20*n/(float)(end-start)); fflush(stdout);
+        }
+    }
 #if 0
     {
         uint8_t buffer[20000];