1 files changed, 81 insertions, 0 deletions
diff --git a/tests2/buffer_printf2_perf.c b/tests2/buffer_printf2_perf.c
new file mode 100644
index 00000000..d7edf576
--- /dev/null
+++ b/tests2/buffer_printf2_perf.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright(c) 2012 Tim Ruehsen
+ *
+ * This file is part of MGet.
+ *
+ * Wget is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Wget is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Wget.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * testing performance of buffer printf routines
+ *
+ * Changelog
+ * 06.07.2012  Tim Ruehsen  created
+ *
+ */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+
+#include <libwget.h>
+
+int main(void)
+{
+	int it;
+	wget_buffer_t buf;
+	char sbuf[128];
+
+	wget_buffer_init(&buf, sbuf, sizeof(sbuf));
+
+	for (it = 0; it < 10000000; it++) {
+		// buffer: 0.239s  libc: 0.018s (gcc replaces sprintf(%s) by strcpy())
+//		snprintf(sbuf,sizeof(sbuf),"%s", "teststring sabbeldi heidewitzka\n");
+//		buffer_printf2(&buf,"%s", "teststring sabbeldi heidewitzka\n");
+
+		// buffer: 0.306s  libc: 1.040s
+//		sprintf(sbuf,"%s\n", "teststring sabbeldi heidewitzka\n");
+//		buffer_printf2(&buf,"%s\n", "teststring sabbeldi heidewitzka\n");
+
+		// function call and loop overhead: buffer: 0.072s libc: 0.390s
+//		buffer_printf2(&buf, "", "teststring sabbeldi heidewitzka\n");
+//		sprintf(sbuf, "", "teststring sabbeldi heidewitzka\n");
+
+		// buffer: 0.392s  libc: 0.838s
+//		sprintf(sbuf,"%.*s\n", 17, "teststring sabbeldi heidewitzka\n");
+//		buffer_printf2(&buf,"%.*s\n", 17, "teststring sabbeldi heidewitzka\n");
+
+		// buffer: 0.407s  libc: 0.960s
+//		sprintf(sbuf,"%d\n", it);
+//		buffer_printf2(&buf,"%d\n", it);
+
+		// buffer: 0.643s  libc/sprintf: 1.251s  libc/snprintf: 1.253s
+//		snprintf(sbuf,sizeof(sbuf),"%10.*d\n", 8, it);
+//		sprintf(sbuf,"%10.*d\n", 8, it);
+//		buffer_printf2(&buf,"%10.*d\n", 8, it);
+
+		// buffer: 0.456s  libc: 0.867s
+//		sprintf(sbuf,"%X\n", it);
+		wget_buffer_printf2(&buf, "%X\n", it);
+
+		// buffer: 0.955s  libc: 1.648s
+//		sprintf(sbuf,"teststring %s sabbeldi %d\n", "[foobar foobar foobar]", it);
+//		buffer_printf2(&buf,"teststring %s sabbeldi %d\n", "[foobar foobar foobar]", it);
+	}
+
+	wget_buffer_deinit(&buf);
+
+	return 0;
+}