# HG changeset patch
# User Me
# Date 1286728667 25200
# Node ID bcc22f6f11a5099e504e7d1fd716b9bdf009bb89
# Parent  a9971dbe5328a721d0c83c0faca9eaf7846d0775
Added min work-unit cycles and measre primitive time

diff -r a9971dbe5328 -r bcc22f6f11a5 SSR.h
--- a/SSR.h	Wed Sep 01 08:28:08 2010 -0700
+++ b/SSR.h	Sun Oct 10 09:37:47 2010 -0700
@@ -45,9 +45,10 @@
 typedef struct
  {
    PrivQueueStruc **readyVPQs;
-   HashTable      *commHashTbl;
-   int             numVirtPr;
-   int             nextCoreToGetNewPr;
+   HashTable       *commHashTbl;
+   int32            numVirtPr;
+   int32            nextCoreToGetNewPr;
+   int32            primitiveStartTime;
  }
 SSRSemEnv;
 
@@ -57,6 +58,16 @@
 void
 SSR__create_seed_procr_and_do_work( VirtProcrFnPtr fn, void *initData );
 
+int32
+SSR__giveMinWorkUnitCycles( float32 percentOverhead );
+
+void inline
+SSR__start_primitive();
+
+int32 inline
+SSR__end_primitive_and_give_cycles();
+
+
 //=======================
 
 void
diff -r a9971dbe5328 -r bcc22f6f11a5 SSR_lib.c
--- a/SSR_lib.c	Wed Sep 01 08:28:08 2010 -0700
+++ b/SSR_lib.c	Sun Oct 10 09:37:47 2010 -0700
@@ -120,6 +120,37 @@
  }
 
 
+int32
+SSR__giveMinWorkUnitCycles( float32 percentOverhead )
+ {
+   return 5000;
+ }
+
+
+/*For now, use TSC -- later, make these two macros with assembly that first
+ * saves jump point, and second jumps back several times to get reliable time
+ */
+void inline
+SSR__start_primitive()
+ { int32 *saveAddr;
+   saveAddr = &(((SSRSemEnv *)(_VMSMasterEnv->semanticEnv))->primitiveStartTime);
+   saveLowTimeStampCountInto( saveAddr );
+ }
+
+/*Just quick and dirty for now -- make reliable later
+ * will want this to jump back several times -- to be sure cache is warm
+ * because don't want comm time included in calc-time measurement -- and
+ * also to throw out any "weird" values due to OS interrupt or TSC rollover
+ */
+int32 inline
+SSR__end_primitive_and_give_cycles()
+ { int32 endTime, startTime;
+   //TODO: fix by repeating time-measurement
+   saveLowTimeStampCountInto( endTime );
+   startTime = ((SSRSemEnv *)(_VMSMasterEnv->semanticEnv))->primitiveStartTime;
+   return (endTime - startTime);
+ }
+
 //===========================================================================
 
 /*Initializes all the data-structures for a SSR system -- but doesn't