1 files changed, 129 insertions, 0 deletions
diff --git a/src/isa-l/igzip/igzip_hist_perf.c b/src/isa-l/igzip/igzip_hist_perf.c
new file mode 100644
index 000000000..bc8c935aa
--- /dev/null
+++ b/src/isa-l/igzip/igzip_hist_perf.c
@@ -0,0 +1,129 @@
+/**********************************************************************
+  Copyright(c) 2011-2016 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.
+**********************************************************************/
+
+#define _FILE_OFFSET_BITS 64
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include "igzip_lib.h"
+#include "test.h"
+
+#define BUF_SIZE 1024
+#define MIN_TEST_LOOPS   8
+#ifndef RUN_MEM_SIZE
+# define RUN_MEM_SIZE 2000000000
+#endif
+
+void print_histogram(struct isal_huff_histogram *histogram)
+{
+	int i;
+	printf("Lit Len histogram");
+	for (i = 0; i < ISAL_DEF_LIT_LEN_SYMBOLS; i++) {
+		if (i % 16 == 0)
+			printf("\n");
+		else
+			printf(", ");
+		printf("%4lu", histogram->lit_len_histogram[i]);
+	}
+	printf("\n");
+
+	printf("Dist histogram");
+	for (i = 0; i < ISAL_DEF_DIST_SYMBOLS; i++) {
+		if (i % 16 == 0)
+			printf("\n");
+		else
+			printf(", ");
+		printf("%4lu", histogram->dist_histogram[i]);
+	}
+	printf("\n");
+}
+
+int main(int argc, char *argv[])
+{
+	FILE *in;
+	unsigned char *inbuf;
+	int iterations, avail_in;
+	uint64_t infile_size;
+	struct isal_huff_histogram histogram1, histogram2;
+
+	memset(&histogram1, 0, sizeof(histogram1));
+	memset(&histogram2, 0, sizeof(histogram2));
+
+	if (argc > 3 || argc < 2) {
+		fprintf(stderr, "Usage: igzip_file_perf  infile [outfile]\n"
+			"\t - Runs multiple iterations of igzip on a file to "
+			"get more accurate time results.\n");
+		exit(0);
+	}
+	in = fopen(argv[1], "rb");
+	if (!in) {
+		fprintf(stderr, "Can't open %s for reading\n", argv[1]);
+		exit(0);
+	}
+
+	/* Allocate space for entire input file and output
+	 * (assuming some possible expansion on output size)
+	 */
+	infile_size = get_filesize(in);
+
+	if (infile_size != 0)
+		iterations = RUN_MEM_SIZE / infile_size;
+	else
+		iterations = MIN_TEST_LOOPS;
+
+	if (iterations < MIN_TEST_LOOPS)
+		iterations = MIN_TEST_LOOPS;
+
+	inbuf = malloc(infile_size);
+	if (inbuf == NULL) {
+		fprintf(stderr, "Can't allocate input buffer memory\n");
+		exit(0);
+	}
+
+	avail_in = fread(inbuf, 1, infile_size, in);
+	if (avail_in != infile_size) {
+		free(inbuf);
+		fprintf(stderr, "Couldn't fit all of input file into buffer\n");
+		exit(0);
+	}
+
+	struct perf start;
+	BENCHMARK(&start, BENCHMARK_TIME,
+		  isal_update_histogram(inbuf, infile_size, &histogram1));
+	printf("  file %s - in_size=%lu\n", argv[1], infile_size);
+	printf("igzip_hist_file: ");
+	perf_print(start, (long long)infile_size);
+
+	fclose(in);
+	fflush(0);
+	free(inbuf);
+
+	return 0;
+}