From a2b216c47fa06dfa7493a689a0774889d356254e Mon Sep 17 00:00:00 2001 From: "hpayer@chromium.org" Date: Thu, 28 Feb 2013 15:18:15 +0000 Subject: [PATCH] Turn off parallel and concurrent sweeping on system with just one processor/core. BUG= Review URL: https://codereview.chromium.org/12380020 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13777 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 --- src/isolate.cc | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/src/isolate.cc b/src/isolate.cc index 59d498c..c8e6f05 100644 --- a/src/isolate.cc +++ b/src/isolate.cc @@ -136,7 +136,7 @@ int SystemThreadManager::NumberOfParallelSystemThreads( int number_of_threads = Min(OS::NumberOfCores(), kMaxThreads); ASSERT(number_of_threads > 0); if (number_of_threads == 1) { - return 1; + return 0; } if (type == PARALLEL_SWEEPING) { return number_of_threads; @@ -2173,6 +2173,8 @@ bool Isolate::Init(Deserializer* des) { marking_thread_[i] = new MarkingThread(this); marking_thread_[i]->Start(); } + } else { + FLAG_parallel_marking = false; } if (FLAG_sweeper_threads == 0) { @@ -2192,6 +2194,9 @@ bool Isolate::Init(Deserializer* des) { sweeper_thread_[i] = new SweeperThread(this); sweeper_thread_[i]->Start(); } + } else { + FLAG_concurrent_sweeping = false; + FLAG_parallel_sweeping = false; } return true; } -- 2.7.4