[Lldb-commits] [lldb] r142602 - in /lldb/trunk/test/benchmarks/expression: ./ Makefile TestRepeatedExprs.py main.cpp
Johnny Chen
johnny.chen at apple.com
Thu Oct 20 11:58:28 PDT 2011
Author: johnny
Date: Thu Oct 20 13:58:28 2011
New Revision: 142602
URL: http://llvm.org/viewvc/llvm-project?rev=142602&view=rev
Log:
Directory renaming: example -> expression.
Added:
lldb/trunk/test/benchmarks/expression/
lldb/trunk/test/benchmarks/expression/Makefile
lldb/trunk/test/benchmarks/expression/TestRepeatedExprs.py
lldb/trunk/test/benchmarks/expression/main.cpp
Added: lldb/trunk/test/benchmarks/expression/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/benchmarks/expression/Makefile?rev=142602&view=auto
==============================================================================
--- lldb/trunk/test/benchmarks/expression/Makefile (added)
+++ lldb/trunk/test/benchmarks/expression/Makefile Thu Oct 20 13:58:28 2011
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
Added: lldb/trunk/test/benchmarks/expression/TestRepeatedExprs.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/benchmarks/expression/TestRepeatedExprs.py?rev=142602&view=auto
==============================================================================
--- lldb/trunk/test/benchmarks/expression/TestRepeatedExprs.py (added)
+++ lldb/trunk/test/benchmarks/expression/TestRepeatedExprs.py Thu Oct 20 13:58:28 2011
@@ -0,0 +1,133 @@
+"""Test evaluating expressions repeatedly comparing lldb against gdb."""
+
+import os, sys
+import unittest2
+import lldb
+import pexpect
+from lldbbench import *
+
+class RepeatedExprsCase(BenchBase):
+
+ mydir = os.path.join("benchmarks", "expression")
+
+ def setUp(self):
+ BenchBase.setUp(self)
+ self.source = 'main.cpp'
+ self.line_to_break = line_number(self.source, '// Set breakpoint here.')
+ self.lldb_avg = None
+ self.gdb_avg = None
+ self.count = lldb.bmIterationCount
+ if self.count <= 0:
+ self.count = 100
+
+ @benchmarks_test
+ def test_compare_lldb_to_gdb(self):
+ """Test repeated expressions with lldb vs. gdb."""
+ self.buildDefault()
+ self.exe_name = 'a.out'
+
+ print
+ self.run_lldb_repeated_exprs(self.exe_name, self.count)
+ print "lldb benchmark:", self.stopwatch
+ self.run_gdb_repeated_exprs(self.exe_name, self.count)
+ print "gdb benchmark:", self.stopwatch
+ print "lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg)
+
+ def run_lldb_repeated_exprs(self, exe_name, count):
+ exe = os.path.join(os.getcwd(), exe_name)
+
+ # Set self.child_prompt, which is "(lldb) ".
+ self.child_prompt = '(lldb) '
+ prompt = self.child_prompt
+
+ # So that the child gets torn down after the test.
+ self.child = pexpect.spawn('%s %s %s' % (self.lldbExec, self.lldbOption, exe))
+ child = self.child
+
+ # Turn on logging for what the child sends back.
+ if self.TraceOn():
+ child.logfile_read = sys.stdout
+
+ child.expect_exact(prompt)
+ child.sendline('breakpoint set -f %s -l %d' % (self.source, self.line_to_break))
+ child.expect_exact(prompt)
+ child.sendline('run')
+ child.expect_exact(prompt)
+ expr_cmd1 = 'expr ptr[j]->point.x'
+ expr_cmd2 = 'expr ptr[j]->point.y'
+
+ # Reset the stopwatch now.
+ self.stopwatch.reset()
+ for i in range(count):
+ with self.stopwatch:
+ child.sendline(expr_cmd1)
+ child.expect_exact(prompt)
+ child.sendline(expr_cmd2)
+ child.expect_exact(prompt)
+ child.sendline('process continue')
+ child.expect_exact(prompt)
+
+ child.sendline('quit')
+ try:
+ self.child.expect(pexpect.EOF)
+ except:
+ pass
+
+ self.lldb_avg = self.stopwatch.avg()
+ if self.TraceOn():
+ print "lldb expression benchmark:", str(self.stopwatch)
+ self.child = None
+
+ def run_gdb_repeated_exprs(self, exe_name, count):
+ exe = os.path.join(os.getcwd(), exe_name)
+
+ # Set self.child_prompt, which is "(gdb) ".
+ self.child_prompt = '(gdb) '
+ prompt = self.child_prompt
+
+ # So that the child gets torn down after the test.
+ self.child = pexpect.spawn('gdb --nx %s' % exe)
+ child = self.child
+
+ # Turn on logging for what the child sends back.
+ if self.TraceOn():
+ child.logfile_read = sys.stdout
+
+ child.expect_exact(prompt)
+ child.sendline('break %s:%d' % (self.source, self.line_to_break))
+ child.expect_exact(prompt)
+ child.sendline('run')
+ child.expect_exact(prompt)
+ expr_cmd1 = 'print ptr[j]->point.x'
+ expr_cmd2 = 'print ptr[j]->point.y'
+
+ # Reset the stopwatch now.
+ self.stopwatch.reset()
+ for i in range(count):
+ with self.stopwatch:
+ child.sendline(expr_cmd1)
+ child.expect_exact(prompt)
+ child.sendline(expr_cmd2)
+ child.expect_exact(prompt)
+ child.sendline('continue')
+ child.expect_exact(prompt)
+
+ child.sendline('quit')
+ child.expect_exact('The program is running. Exit anyway?')
+ child.sendline('y')
+ try:
+ self.child.expect(pexpect.EOF)
+ except:
+ pass
+
+ self.gdb_avg = self.stopwatch.avg()
+ if self.TraceOn():
+ print "gdb expression benchmark:", str(self.stopwatch)
+ self.child = None
+
+
+if __name__ == '__main__':
+ import atexit
+ lldb.SBDebugger.Initialize()
+ atexit.register(lambda: lldb.SBDebugger.Terminate())
+ unittest2.main()
Added: lldb/trunk/test/benchmarks/expression/main.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/benchmarks/expression/main.cpp?rev=142602&view=auto
==============================================================================
--- lldb/trunk/test/benchmarks/expression/main.cpp (added)
+++ lldb/trunk/test/benchmarks/expression/main.cpp Thu Oct 20 13:58:28 2011
@@ -0,0 +1,51 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <stdio.h>
+
+class Point {
+public:
+ int x;
+ int y;
+ Point(int a, int b):
+ x(a),
+ y(b)
+ {}
+};
+
+class Data {
+public:
+ int id;
+ Point point;
+ Data(int i):
+ id(i),
+ point(0, 0)
+ {}
+};
+
+int main(int argc, char const *argv[]) {
+ Data *data[1000];
+ Data **ptr = data;
+ for (int i = 0; i < 1000; ++i) {
+ ptr[i] = new Data(i);
+ ptr[i]->point.x = i;
+ ptr[i]->point.y = i+1;
+ }
+
+ printf("Finished populating data.\n");
+ for (int j = 0; j < 1000; ++j) {
+ bool dump = argc > 1; // Set breakpoint here.
+ // Evaluate a couple of expressions (2*1000 = 2000 exprs):
+ // expr ptr[j]->point.x
+ // expr ptr[j]->point.y
+ if (dump) {
+ printf("data[%d] = %d (%d, %d)\n", j, ptr[j]->id, ptr[j]->point.x, ptr[j]->point.y);
+ }
+ }
+ return 0;
+}
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