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authorNathan Binkert <binkertn@umich.edu>2007-02-07 22:02:09 -0800
committerNathan Binkert <binkertn@umich.edu>2007-02-07 22:02:09 -0800
commitaf698e8b0506b17dfa9eb6d1e96888cf54041a09 (patch)
tree408a3fdacab18b195ea6c2ba9acefa15decb7b54
parent2ec4a6c07132488abab62f6236406707d4388b2f (diff)
downloadgem5-af698e8b0506b17dfa9eb6d1e96888cf54041a09.tar.xz
Quick program to time how long ccprintf takes to write
to a stream compared to sprintf to a buffer. --HG-- extra : convert_revision : de80724943d18aa110aa39cde9414252d9a7944c
-rw-r--r--src/unittest/Makefile3
-rw-r--r--src/unittest/cprintftime.cc90
2 files changed, 93 insertions, 0 deletions
diff --git a/src/unittest/Makefile b/src/unittest/Makefile
index e22b80b48..e6a621a9e 100644
--- a/src/unittest/Makefile
+++ b/src/unittest/Makefile
@@ -56,6 +56,9 @@ circletest: unittest/circletest.cc base/circlebuf.cc
cprintftest: unittest/cprintftest.cc base/cprintf.cc
$(CXX) $(CCFLAGS) -o $@ $^
+cprintftime: unittest/cprintftime.cc base/cprintf.cc
+ $(CXX) $(CCFLAGS) -o $@ $^
+
initest: unittest/initest.cc base/str.cc base/inifile.cc base/cprintf.cc
$(CXX) $(CCFLAGS) -o $@ $^
diff --git a/src/unittest/cprintftime.cc b/src/unittest/cprintftime.cc
new file mode 100644
index 000000000..f35e0aa25
--- /dev/null
+++ b/src/unittest/cprintftime.cc
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * 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 the copyright holders 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.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#include <iostream>
+#include <list>
+#include <string>
+#include <sstream>
+
+#include "base/cprintf.hh"
+
+using namespace std;
+
+volatile int stop = false;
+
+void
+handle_alarm(int signal)
+{
+ stop = true;
+}
+
+void
+do_test(int seconds)
+{
+ stop = false;
+ alarm(seconds);
+}
+
+int
+main()
+{
+ stringstream result;
+ int iterations = 0;
+
+ signal(SIGALRM, handle_alarm);
+
+ do_test(10);
+ while (!stop) {
+ stringstream result;
+ ccprintf(result,
+ "this is a %s of %d iterations %3.2f %#x\n",
+ "test", iterations, 51.934, &result);
+
+ iterations += 1;
+ }
+
+ cprintf("completed %d iterations of ccprintf in 10s, %f iterations/s\n",
+ iterations, iterations / 10.0);
+
+ do_test(10);
+ while (!stop) {
+ char result[1024];
+ sprintf(result,
+ "this is a %s of %d iterations %3.2f %#x\n",
+ "test", iterations, 51.934, &result);
+
+ iterations += 1;
+ }
+
+ cprintf("completed %d iterations of sprintf in 10s, %f iterations/s\n",
+ iterations, iterations / 10.0);
+
+ return 0;
+}