1 files changed, 182 insertions, 0 deletions
diff --git a/memory/jemalloc/src/test/stress/microbench.c b/memory/jemalloc/src/test/stress/microbench.c
new file mode 100644
index 000000000..7dc45f89c
--- /dev/null
+++ b/memory/jemalloc/src/test/stress/microbench.c
@@ -0,0 +1,182 @@
+#include "test/jemalloc_test.h"
+
+JEMALLOC_INLINE_C void
+time_func(timedelta_t *timer, uint64_t nwarmup, uint64_t niter,
+    void (*func)(void))
+{
+	uint64_t i;
+
+	for (i = 0; i < nwarmup; i++)
+		func();
+	timer_start(timer);
+	for (i = 0; i < niter; i++)
+		func();
+	timer_stop(timer);
+}
+
+void
+compare_funcs(uint64_t nwarmup, uint64_t niter, const char *name_a,
+    void (*func_a), const char *name_b, void (*func_b))
+{
+	timedelta_t timer_a, timer_b;
+	char ratio_buf[6];
+	void *p;
+
+	p = mallocx(1, 0);
+	if (p == NULL) {
+		test_fail("Unexpected mallocx() failure");
+		return;
+	}
+
+	time_func(&timer_a, nwarmup, niter, func_a);
+	time_func(&timer_b, nwarmup, niter, func_b);
+
+	timer_ratio(&timer_a, &timer_b, ratio_buf, sizeof(ratio_buf));
+	malloc_printf("%"FMTu64" iterations, %s=%"FMTu64"us, "
+	    "%s=%"FMTu64"us, ratio=1:%s\n",
+	    niter, name_a, timer_usec(&timer_a), name_b, timer_usec(&timer_b),
+	    ratio_buf);
+
+	dallocx(p, 0);
+}
+
+static void
+malloc_free(void)
+{
+	/* The compiler can optimize away free(malloc(1))! */
+	void *p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	free(p);
+}
+
+static void
+mallocx_free(void)
+{
+	void *p = mallocx(1, 0);
+	if (p == NULL) {
+		test_fail("Unexpected mallocx() failure");
+		return;
+	}
+	free(p);
+}
+
+TEST_BEGIN(test_malloc_vs_mallocx)
+{
+
+	compare_funcs(10*1000*1000, 100*1000*1000, "malloc",
+	    malloc_free, "mallocx", mallocx_free);
+}
+TEST_END
+
+static void
+malloc_dallocx(void)
+{
+	void *p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	dallocx(p, 0);
+}
+
+static void
+malloc_sdallocx(void)
+{
+	void *p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	sdallocx(p, 1, 0);
+}
+
+TEST_BEGIN(test_free_vs_dallocx)
+{
+
+	compare_funcs(10*1000*1000, 100*1000*1000, "free", malloc_free,
+	    "dallocx", malloc_dallocx);
+}
+TEST_END
+
+TEST_BEGIN(test_dallocx_vs_sdallocx)
+{
+
+	compare_funcs(10*1000*1000, 100*1000*1000, "dallocx", malloc_dallocx,
+	    "sdallocx", malloc_sdallocx);
+}
+TEST_END
+
+static void
+malloc_mus_free(void)
+{
+	void *p;
+
+	p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	malloc_usable_size(p);
+	free(p);
+}
+
+static void
+malloc_sallocx_free(void)
+{
+	void *p;
+
+	p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	if (sallocx(p, 0) < 1)
+		test_fail("Unexpected sallocx() failure");
+	free(p);
+}
+
+TEST_BEGIN(test_mus_vs_sallocx)
+{
+
+	compare_funcs(10*1000*1000, 100*1000*1000, "malloc_usable_size",
+	    malloc_mus_free, "sallocx", malloc_sallocx_free);
+}
+TEST_END
+
+static void
+malloc_nallocx_free(void)
+{
+	void *p;
+
+	p = malloc(1);
+	if (p == NULL) {
+		test_fail("Unexpected malloc() failure");
+		return;
+	}
+	if (nallocx(1, 0) < 1)
+		test_fail("Unexpected nallocx() failure");
+	free(p);
+}
+
+TEST_BEGIN(test_sallocx_vs_nallocx)
+{
+
+	compare_funcs(10*1000*1000, 100*1000*1000, "sallocx",
+	    malloc_sallocx_free, "nallocx", malloc_nallocx_free);
+}
+TEST_END
+
+int
+main(void)
+{
+
+	return (test(
+	    test_malloc_vs_mallocx,
+	    test_free_vs_dallocx,
+	    test_dallocx_vs_sdallocx,
+	    test_mus_vs_sallocx,
+	    test_sallocx_vs_nallocx));
+}