No longer issue ticks more often when debugger is activated.

src/x64/full-codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 292 matching lines @@
                     Smi::FromInt(-delta));
 }
 
 
 void FullCodeGenerator::EmitProfilingCounterReset() {
   int reset_value = FLAG_interrupt_budget;
   if (info_->ShouldSelfOptimize() && !FLAG_retry_self_opt) {
     // Self-optimization is a one-off thing; if it fails, don't try again.
     reset_value = Smi::kMaxValue;
   }
-  if (isolate()->IsDebuggerActive()) {
-    // Detect debug break requests as soon as possible.
-    reset_value = 10;
-  }
   __ movq(rbx, profiling_counter_, RelocInfo::EMBEDDED_OBJECT);
   __ movq(kScratchRegister,
           reinterpret_cast<uint64_t>(Smi::FromInt(reset_value)),
           RelocInfo::NONE);
   __ movq(FieldOperand(rbx, JSGlobalPropertyCell::kValueOffset),
           kScratchRegister);
 }
 
 
 static const int kMaxBackEdgeWeight = 127;
@@ skipping 4212 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64