c2921730a7 — curl

Subject

perf/base64: split into separate encoding plus decoding tests

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Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

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Commit Diff GitHub →

tests/perf/Makefile.inc +2 -1 tests/perf/README.md +15 -5 tests/perf/base64dec.c +72 -0 tests/perf/base64.c → tests/perf/base64enc.c +1 -8

tests/perf/Makefile.inc+2 -1

@@ -43,7 +43,8 @@ CURLX_C = \

	# All performance test programs
	TESTS_C = \
-	base64.c \
+	base64dec.c \
+	base64enc.c \
	percent.c \
	snprintf.c \
	urlparser.c

tests/perf/README.md+15 -5

@@ -24,13 +24,23 @@ them: `./perf urlparser URLs.txt [loops]`
	A test sample of 100K URLs can be found
	[here](https://raw.githubusercontent.com/ada-url/url-various-datasets/refs/heads/main/top100/top100.txt)

-	## `base64`
+	## `base64enc`

-	This test first base64 encodes a 256-byte buffer that has every different
-	byte octet represented. It then decodes that string. Repeatedly in a loop the
-	provided number of times: `./perf base64 [loops]`
+	This test base64 encodes a 256-byte buffer that has every different byte octet
+	represented. Repeatedly in a loop the provided number of times:
+
+	./perf base64enc [loops]
+
+	## `base64dec`
+
+	This test base64 decodes a big encoded string. Repeatedly in a loop the
+	provided number of times:
+
+	./perf base64dec [loops]

	## `snprintf`

	This test repeatedly formats a representative string and measures the time per
-	call: `./perf snprintf [loops]`
+	call:
+
+	./perf snprintf [loops]

tests/perf/base64dec.c+72 -0

@@ -0,0 +1,72 @@
+	/***************************************************************************
+	* _ _ ____ _
+	* Project ___\| \| \| \| _ \\| \|
+	* / __\| \| \| \| \|_) \| \|
+	* \| (__\| \|_\| \| _ <\| \|___
+	* \___\|\___/\|_\| \_\_____\|
+	*
+	* Copyright (C) Daniel Stenberg, <[email protected]>, et al.
+	*
+	* This software is licensed as described in the file COPYING, which
+	* you should have received as part of this distribution. The terms
+	* are also available at https://curl.se/docs/copyright.html.
+	*
+	* You may opt to use, copy, modify, merge, publish, distribute and/or sell
+	* copies of the Software, and permit persons to whom the Software is
+	* furnished to do so, under the terms of the COPYING file.
+	*
+	* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+	* KIND, either express or implied.
+	*
+	* SPDX-License-Identifier: curl
+	*
+	***************************************************************************/
+	#include "first.h"
+
+	/* this is 256 bytes using the octets 0-255, base64 encoded */
+	#define BLOB64 \
+	"AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMD" \
+	"EyMzQ1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5fYGFi" \
+	"Y2RlZmdoaWprbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6PkJGSk5" \
+	"SVlpeYmZqbnJ2en6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TF" \
+	"xsfIycrLzM3Oz9DR0tPU1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v8PHy8/T19v" \
+	"f4+fr7/P3+/w=="
+
+	static int test_base64dec(int argc, const char **argv)
+	{
+	struct curltime start;
+	struct curltime end;
+	timediff_t us;
+	long long hn;
+	curl_off_t loops = 10000000, loop;
+
+	if(argc > 1) {
+	const char *ptr = argv[1];
+	curl_off_t num;
+	if(!curlx_str_number(&ptr, &num, CURL_OFF_T_MAX) && !*ptr)
+	loops = num;
+	}
+
+	start = curlx_now();
+	for(loop = 0; loop < loops; loop++) {
+	unsigned char *recoded = NULL;
+	size_t reclen;
+	CURLcode result = curlx_base64_decode(BLOB64, &recoded, &reclen);
+	curlx_free(recoded);
+	if(result) {
+	curl_mfprintf(stderr, "unexpected coding error: %d\n", (int)result);
+	return 1;
+	}
+	}
+	end = curlx_now();
+	us = curlx_timediff_us(end, start); /* how many microseconds */
+	hn = loop ? us * 100000 / loops : 0; /* 100 times too big */
+	curl_mprintf("Loops: %" CURL_FORMAT_CURL_OFF_T "\n"
+	"Time: %lld usecs\n"
+	"Time/loop: %lld.%0lld ns\n",
+	loops,
+	(long long)us,
+	(long long)hn / 100,
+	(long long)hn % 100);
+	return 0;
+	}

tests/perf/base64.c → tests/perf/base64enc.c+1 -8

@@ -23,7 +23,7 @@
	***************************************************************************/
	#include "first.h"

-	static int test_base64(int argc, const char **argv)
+	static int test_base64enc(int argc, const char **argv)
	{
	struct curltime start;
	struct curltime end;
@@ -52,13 +52,6 @@ static int test_base64(int argc, const char **argv)
	size_t enclen;
	CURLcode result =
	curlx_base64_encode(array, sizeof(array), &encoded, &enclen);
-	if(!result) {
-	unsigned char *recoded = NULL;
-	size_t reclen;
-	/* now decode it again */
-	result = curlx_base64_decode(encoded, &recoded, &reclen);
-	curlx_free(recoded);
-	}
	if(result) {
	curl_mfprintf(stderr, "unexpected coding error: %d\n", (int)result);
	return 1;