Author: enrico Date: Fri Dec 4 13:40:26 2015 New Revision: 254755 URL: http://llvm.org/viewvc/llvm-project?rev=254755&view=rev Log: Add a benchmark that validates how much time LLDB spends trying to fully print a fairly large std::list<T>
This is meant to help me track optimizations to the libc++ std::list data formatter Added: lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/ lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/Makefile lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/main.cpp Added: lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/Makefile URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/Makefile?rev=254755&view=auto ============================================================================== --- lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/Makefile (added) +++ lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/Makefile Fri Dec 4 13:40:26 2015 @@ -0,0 +1,5 @@ +LEVEL = ../../make + +CXX_SOURCES := main.cpp + +include $(LEVEL)/Makefile.rules Added: lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py?rev=254755&view=auto ============================================================================== --- lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py (added) +++ lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/TestBenchmarkLibcxxList.py Fri Dec 4 13:40:26 2015 @@ -0,0 +1,59 @@ +""" +Test lldb data formatter subsystem. +""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbbench import * +import lldbsuite.test.lldbutil as lldbutil + +class TestBenchmarkLibcxxList(BenchBase): + + mydir = TestBase.compute_mydir(__file__) + + @benchmarks_test + def test_run_command(self): + """Benchmark the std::list data formatter (libc++)""" + self.build() + self.data_formatter_commands() + + def setUp(self): + # Call super's setUp(). + BenchBase.setUp(self) + + def data_formatter_commands(self): + """Benchmark the std::list data formatter (libc++)""" + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + bkpt = self.target().FindBreakpointByID(lldbutil.run_break_set_by_source_regexp (self, "break here")) + + self.runCmd("run", RUN_SUCCEEDED) + + # The stop reason of the thread should be breakpoint. + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'stop reason = breakpoint']) + + # This is the function to remove the custom formats in order to have a + # clean slate for the next test case. + def cleanup(): + self.runCmd('type format clear', check=False) + self.runCmd('type summary clear', check=False) + self.runCmd('type filter clear', check=False) + self.runCmd('type synth clear', check=False) + self.runCmd("settings set target.max-children-count 256", check=False) + + # Execute the cleanup function during test case tear down. + self.addTearDownHook(cleanup) + + sw = Stopwatch() + + sw.start() + self.expect('frame variable -A list', substrs=['[300]', '300']) + sw.stop() + + print("time to print: %s" % (sw)) Added: lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/main.cpp URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/main.cpp?rev=254755&view=auto ============================================================================== --- lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/main.cpp (added) +++ lldb/trunk/packages/Python/lldbsuite/test/benchmarks/libcxxlist/main.cpp Fri Dec 4 13:40:26 2015 @@ -0,0 +1,11 @@ +#include <list> + +int main() +{ + std::list<int> list; + for (int i = 0; + i < 1500; + i++) + list.push_back(i); + return list.size(); // break here +} _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits