Add another metric for startup delay -- run to breakpoint, which measures the time from issuing

the run command till the first breakpoint hit.  Example:

 $ ./dotest.py -v +b -n -x '-F Driver::MainLoop()' -p TestStartupDelays.py
1: test_startup_delay (TestStartupDelays.StartupDelaysBench)
   Test start up delays creating a target and setting a breakpoint. ... 
lldb startup delay (create fresh target) benchmark: Avg: 0.124496 (Laps: 30, Total Elapsed Time: 3.734883)
lldb startup delay (set first breakpoint) benchmark: Avg: 0.220828 (Laps: 30, Total Elapsed Time: 6.624847)
lldb startup delay (run to breakpoint) benchmark: Avg: 0.478159 (Laps: 30, Total Elapsed Time: 14.344774)
ok

llvm-svn: 142993

1 files changed, 8 insertions, 0 deletions

diff --git a/lldb/test/benchmarks/startup/TestStartupDelays.py b/lldb/test/benchmarks/startup/TestStartupDelays.py
index 1a15a917cdd..f770b31dfa3 100644
--- a/lldb/test/benchmarks/startup/TestStartupDelays.py
+++ b/lldb/test/benchmarks/startup/TestStartupDelays.py
@@ -15,6 +15,8 @@ class StartupDelaysBench(BenchBase):
         # Create self.stopwatch2 for measuring "set first breakpoint".
         # The default self.stopwatch is for "create fresh target".
         self.stopwatch2 = Stopwatch()
+        # Create self.stopwatch3 for measuring "run to breakpoint".
+        self.stopwatch3 = Stopwatch()
         if lldb.bmExecutable:
             self.exe = lldb.bmExecutable
         else:
@@ -35,6 +37,7 @@ class StartupDelaysBench(BenchBase):
         self.run_startup_delays_bench(self.exe, self.break_spec, self.count)
         print "lldb startup delay (create fresh target) benchmark:", self.stopwatch
         print "lldb startup delay (set first breakpoint) benchmark:", self.stopwatch2
+        print "lldb startup delay (run to breakpoint) benchmark:", self.stopwatch3
 
     def run_startup_delays_bench(self, exe, break_spec, count):
         # Set self.child_prompt, which is "(lldb) ".
@@ -63,6 +66,11 @@ class StartupDelaysBench(BenchBase):
                 child.sendline('breakpoint set %s' % break_spec)
                 child.expect_exact(prompt)
 
+            with self.stopwatch3:
+                # Run to the breakpoint just set.
+                child.sendline('run')
+                child.expect_exact(prompt)
+
             child.sendline('quit')
             try:
                 self.child.expect(pexpect.EOF)