Small update to experimental profiler flags

Review URL: https://chromiumcodereview.appspot.com/9360041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/flag-definitions.h

@@ -168,18 +168,20 @@ DEFINE_int(loop_weight, 1, "loop weight for representation inference")
 // Experimental profiler changes.
 DEFINE_bool(experimental_profiler, false, "enable all profiler experiments")
 DEFINE_bool(watch_ic_patching, false, "profiler considers IC stability")
+DEFINE_int(frame_count, 2, "number of stack frames inspected by the profiler")
 DEFINE_bool(self_optimization, false,
             "primitive functions trigger their own optimization")
 DEFINE_bool(count_based_interrupts, false,
             "trigger profiler ticks based on counting instead of timing")
 DEFINE_bool(weighted_back_edges, false,
             "weight back edges by jump distance for interrupt triggering")
-DEFINE_int(interrupt_budget, 100,
+DEFINE_int(interrupt_budget, 10000,
            "execution budget before interrupt is triggered")
 
 DEFINE_implication(experimental_profiler, watch_ic_patching)
 DEFINE_implication(experimental_profiler, self_optimization)
 DEFINE_implication(experimental_profiler, count_based_interrupts)
+DEFINE_implication(experimental_profiler, weighted_back_edges)
 
 // assembler-ia32.cc / assembler-arm.cc / assembler-x64.cc
 DEFINE_bool(debug_code, false,

src/runtime-profiler.cc

@@ -205,8 +205,10 @@ void RuntimeProfiler::OptimizeNow() {
   JSFunction* samples[kSamplerFrameCount];
   int sample_count = 0;
   int frame_count = 0;
+  int frame_count_limit = FLAG_watch_ic_patching ? FLAG_frame_count
+                                                 : kSamplerFrameCount;
   for (JavaScriptFrameIterator it(isolate_);
-       frame_count++ < kSamplerFrameCount && !it.done();
+       frame_count++ < frame_count_limit && !it.done();
        it.Advance()) {
     JavaScriptFrame* frame = it.frame();
     JSFunction* function = JSFunction::cast(frame->function());