Add ck_hp latency tests for FIFO and stack.

regressions/ck_hp/benchmark/Makefile

@@ -1,12 +1,15 @@
 .PHONY: clean distribution
 
-OBJECTS=fifo_latency
+OBJECTS=fifo_latency stack_latency
 
 all: $(OBJECTS) 
 
 fifo_latency: fifo_latency.c
 	$(CC) $(CFLAGS) -o fifo_latency ../../../src/ck_hp.c fifo_latency.c
 
+stack_latency: stack_latency.c
+	$(CC) $(CFLAGS) -o stack_latency ../../../src/ck_hp.c stack_latency.c
+
 clean:
 	rm -rf *~ *.o *.dSYM $(OBJECTS)
 

regressions/ck_hp/benchmark/fifo_latency.c

@@ -1,3 +1,29 @@
+/*
+ * Copyright 2011 Samy Al Bahra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
 #include <ck_hp.h>
 #include <ck_hp_fifo.h>
 #include <inttypes.h>
@@ -15,8 +41,8 @@
 #define STEPS 40000
 #endif
 
-ck_hp_fifo_t fifo;
-ck_hp_t fifo_hp;
+static ck_hp_fifo_t fifo;
+static ck_hp_t fifo_hp;
 
 int
 main(void)

regressions/ck_hp/benchmark/stack_latency.c

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2011 Samy Al Bahra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <ck_hp.h>
+#include <ck_hp_stack.h>
+#include <ck_stack.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../../common.h"
+
+#ifndef ENTRIES
+#define ENTRIES 4096 
+#endif
+
+#ifndef STEPS
+#define STEPS 40000
+#endif
+
+static ck_stack_t stack;
+static ck_hp_t stack_hp;
+
+int
+main(void)
+{
+	ck_hp_record_t record;
+	ck_stack_entry_t entry[ENTRIES];
+	uint64_t s, e, a;
+	unsigned int i;
+	unsigned int j;
+	void *r;
+
+	ck_hp_init(&stack_hp, CK_HP_STACK_SLOTS_COUNT, 1000000, NULL);
+	r = malloc(CK_HP_STACK_SLOTS_SIZE);
+	if (r == NULL) {
+		fprintf(stderr, "ERROR: Failed to allocate slots.\n");
+		exit(EXIT_FAILURE);
+	}
+	ck_hp_subscribe(&stack_hp, &record, (void *)r);
+
+	a = 0;
+	for (i = 0; i < STEPS; i++) {
+		ck_stack_init(&stack);
+
+		s = rdtsc();
+		for (j = 0; j < ENTRIES; j++)
+			ck_hp_stack_push_mpmc(&stack, entry + j);
+		e = rdtsc();
+
+		a += e - s;
+	}
+	printf("ck_hp_stack_push_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
+
+	a = 0;
+	for (i = 0; i < STEPS; i++) {
+		ck_stack_init(&stack);
+
+		for (j = 0; j < ENTRIES; j++)
+			ck_hp_stack_push_mpmc(&stack, entry + j);
+
+		s = rdtsc();
+		for (j = 0; j < ENTRIES; j++) {
+			r = ck_hp_stack_pop_mpmc(&record, &stack);
+		}
+		e = rdtsc();
+		a += e - s;
+	}
+	printf(" ck_hp_stack_pop_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
+
+	return 0;
+}