1 files changed, 87 insertions, 0 deletions
diff --git a/src/isa-l/crc/crc32_ieee_perf.c b/src/isa-l/crc/crc32_ieee_perf.c
new file mode 100644
index 00000000..c6c74950
--- /dev/null
+++ b/src/isa-l/crc/crc32_ieee_perf.c
@@ -0,0 +1,87 @@
+/**********************************************************************
+  Copyright(c) 2011-2015 Intel Corporation All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * 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.
+    * Neither the name of Intel Corporation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+  OWNER 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/time.h>
+#include "crc.h"
+#include "test.h"
+
+//#define CACHED_TEST
+#ifdef CACHED_TEST
+// Cached test, loop many times over small dataset
+# define TEST_LEN     8*1024
+# define TEST_LOOPS   400000
+# define TEST_TYPE_STR "_warm"
+#else
+// Uncached test.  Pull from large mem base.
+#  define GT_L3_CACHE  32*1024*1024	/* some number > last level cache */
+#  define TEST_LEN     (2 * GT_L3_CACHE)
+#  define TEST_LOOPS   100
+#  define TEST_TYPE_STR "_cold"
+#endif
+
+#ifndef TEST_SEED
+# define TEST_SEED 0x1234
+#endif
+
+#define TEST_MEM TEST_LEN
+
+int main(int argc, char *argv[])
+{
+	int i;
+	void *buf;
+	uint32_t crc;
+	struct perf start, stop;
+
+	printf("crc32_ieee_perf:\n");
+
+	if (posix_memalign(&buf, 1024, TEST_LEN)) {
+		printf("alloc error: Fail");
+		return -1;
+	}
+
+	printf("Start timed tests\n");
+	fflush(0);
+
+	memset(buf, 0, TEST_LEN);
+	crc = crc32_ieee(TEST_SEED, buf, TEST_LEN);
+	perf_start(&start);
+	for (i = 0; i < TEST_LOOPS; i++) {
+		crc = crc32_ieee(TEST_SEED, buf, TEST_LEN);
+	}
+	perf_stop(&stop);
+	printf("crc32_ieee" TEST_TYPE_STR ": ");
+	perf_print(stop, start, (long long)TEST_LEN * i);
+
+	printf("finish 0x%x\n", crc);
+	return 0;
+}