[app][tests] a few tweaks to some tests

-Add more interesting names to fibo threads
-Iterate a lot more on some of the thread tests (for faster cpus)
-Add spinner command that lets you add threads that spin forever

app/tests/fibo.c

@@ -41,12 +41,15 @@ static int fibo_thread(void *argv)
 	if (fibo == 1)
 		return 1;
 
-	t[0] = thread_create("fibo", &fibo_thread, (void *)(fibo - 1), DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
+	char name[32];
+	snprintf(name, sizeof(name), "fibo %lu", fibo - 1);
+	t[0] = thread_create(name, &fibo_thread, (void *)(fibo - 1), DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
 	if (!t[0]) {
 		printf("error creating thread for fibo %d\n", fibo-1);
 		return 0;
 	}
-	t[1] = thread_create("fibo", &fibo_thread, (void *)(fibo - 2), DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
+	snprintf(name, sizeof(name), "fibo %lu", fibo - 2);
+	t[1] = thread_create(name, &fibo_thread, (void *)(fibo - 2), DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
 	if (!t[1]) {
 		printf("error creating thread for fibo %d\n", fibo-2);
 		thread_resume(t[0]);
@@ -89,4 +92,5 @@ int fibo(int argc, const cmd_args *argv)
 	return NO_ERROR;
 }
 
+// vim: set noexpandtab:
 

app/tests/include/app/tests.h

@@ -32,6 +32,7 @@ void clock_tests(void);
 void float_tests(void);
 void benchmarks(void);
 int fibo(int argc, const cmd_args *argv);
+int spinner(int argc, const cmd_args *argv);
 
 #endif
 

app/tests/tests.c

@@ -38,6 +38,7 @@ STATIC_COMMAND("float_tests", "floating point test", (console_cmd)&float_tests)
 #endif
 STATIC_COMMAND("bench", "miscellaneous benchmarks", (console_cmd)&benchmarks)
 STATIC_COMMAND("fibo", "threaded fibonacci", (console_cmd)&fibo)
+STATIC_COMMAND("spinner", "create a spinning thread", (console_cmd)&spinner)
 STATIC_COMMAND_END(tests);
 
 #endif

app/tests/thread_tests.c

@@ -131,7 +131,7 @@ static int semaphore_test(void)
 static int mutex_thread(void *arg)
 {
 	int i;
-	const int iterations = 50000;
+	const int iterations = 1000000;
 
 	static volatile int shared = 0;
 
@@ -406,9 +406,11 @@ static int atomic_tester(void *arg)
 	int add = (intptr_t)arg;
 	int i;
 
-	TRACEF("add %d\n", add);
+	const int iter = 10000000;
 
-	for (i=0; i < 1000000; i++) {
+	TRACEF("add %d, %d iterations\n", add, iter);
+
+	for (i=0; i < iter; i++) {
 		atomic_add(&atomic, add);
 	}
 
@@ -632,4 +634,27 @@ int thread_tests(void)
 	return 0;
 }
 
+static int spinner_thread(void *arg)
+{
+	for (;;)
+		;
+
+	return 0;
+}
+
+int spinner(int argc, const cmd_args *argv)
+{
+	if (argc < 2) {
+		printf("not enough args\n");
+		printf("usage: %s <priority>\n", argv[0].str);
+		return -1;
+	}
+
+	thread_t *t = thread_create("spinner", spinner_thread, NULL, argv[1].u, DEFAULT_STACK_SIZE);
+	if (t)
+		thread_resume(t);
+
+	return 0;
+}
+
 /* vim: set ts=4 sw=4 noexpandtab: */