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Small update to experimental profiler flags

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
jkummerow@chromium.org 2012-02-14 14:28:37 +00:00
parent 0be449d684
commit 866e0eeeb7
2 changed files with 6 additions and 2 deletions
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4
src/flag-definitions.h
View File

@ -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,

4
src/runtime-profiler.cc
View File

@ -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());