Index: src/benchmark/CorCtxSwitch.c
===================================================================
--- src/benchmark/CorCtxSwitch.c	(revision de90452106c3d5de84ac42272ea726a798b31586)
+++ src/benchmark/CorCtxSwitch.c	(revision de90452106c3d5de84ac42272ea726a798b31586)
@@ -0,0 +1,67 @@
+#include <fstream>
+#include <stdlib>
+#include <threads>
+
+#include <unistd.h>					// sysconf
+#include <sys/times.h>					// times
+#include <time.h>
+
+inline unsigned long long int Time() {
+    timespec ts;
+    clock_gettime(
+#if defined( __linux__ )
+	 CLOCK_THREAD_CPUTIME_ID,
+#elif defined( __freebsd__ )
+	 CLOCK_PROF,
+#elif defined( __solaris__ )
+	 CLOCK_HIGHRES,
+#else
+    #error uC++ : internal error, unsupported architecture
+#endif
+	 &ts );
+    return 1000000000LL * ts.tv_sec + ts.tv_nsec;
+} // Time
+
+struct GreatSuspender {
+	coroutine c;
+};
+
+DECL_COROUTINE(GreatSuspender);
+
+void ?{}( GreatSuspender * this ) {
+	prime(this);
+}
+
+void main( GreatSuspender * this )
+{
+	while( true ) {
+		suspend();
+	}
+}
+
+void resumer( GreatSuspender * this, const unsigned int NoOfTimes ) {
+	for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
+		resume( this );
+	}
+}
+
+#ifndef N
+#define N 100000000
+#endif
+
+int main() {
+	const unsigned int NoOfTimes = N;
+	long long int StartTime, EndTime;
+
+	GreatSuspender s;
+
+	StartTime = Time();
+	// for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
+	// 	resume( this_coroutine() );
+	// 	// resume( &s );	
+	// }
+	resumer( &s, NoOfTimes );
+	EndTime = Time();
+
+	sout | ( EndTime - StartTime ) / NoOfTimes | endl;
+}
Index: src/benchmark/ThrdCtxSwitch.c
===================================================================
--- src/benchmark/ThrdCtxSwitch.c	(revision de90452106c3d5de84ac42272ea726a798b31586)
+++ src/benchmark/ThrdCtxSwitch.c	(revision de90452106c3d5de84ac42272ea726a798b31586)
@@ -0,0 +1,40 @@
+#include <fstream>
+#include <stdlib>
+#include <threads>
+
+#include <unistd.h>					// sysconf
+#include <sys/times.h>					// times
+#include <time.h>
+
+inline unsigned long long int Time() {
+    timespec ts;
+    clock_gettime(
+#if defined( __linux__ )
+	 CLOCK_THREAD_CPUTIME_ID,
+#elif defined( __freebsd__ )
+	 CLOCK_PROF,
+#elif defined( __solaris__ )
+	 CLOCK_HIGHRES,
+#else
+    #error uC++ : internal error, unsupported architecture
+#endif
+	 &ts );
+    return 1000000000LL * ts.tv_sec + ts.tv_nsec;
+} // Time
+ 
+#ifndef N
+#define N 100000000
+#endif
+
+int main() {
+	const unsigned int NoOfTimes = N;
+	long long int StartTime, EndTime;
+
+	StartTime = Time();
+	for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
+		yield();
+	}
+	EndTime = Time();
+
+	sout | ( EndTime - StartTime ) / NoOfTimes | endl;
+}