Changeset 105270 in webkit for trunk/Source/JavaScriptCore/runtime/Options.cpp

Timestamp:

Jan 18, 2012, 6:15:05 AM (13 years ago)

Author:

[email protected]

Message:

Cross-platform processor core counter
​https://bugs.webkit.org/show_bug.cgi?id=76530

Patch by Roland Takacs <​[email protected]> on 2012-01-18
Reviewed by Zoltan Herczeg.

Source/JavaScriptCore:

Two files have been created that include the processor core counter function.
It used to be in ParallelJobsGeneric.h/cpp before.

• GNUmakefile.list.am:
• JavaScriptCore.gypi:
• JavaScriptCore.vcproj/WTF/WTF.vcproj:
• JavaScriptCore.xcodeproj/project.pbxproj:
• runtime/Options.cpp:

(JSC::Options::initializeOptions):

• wtf/CMakeLists.txt:
• wtf/NumberOfCores.cpp: Added.

(WTF::numberOfProcessorCores):

• wtf/NumberOfCores.h: Added.
• wtf/ParallelJobsGeneric.cpp:

(WTF::ParallelEnvironment::ParallelEnvironment):

• wtf/ParallelJobsGeneric.h:

Source/WTF:

Two files have been added to the project, namely NumberOfCores.h/cpp,
that include a CPU core number determining function.

• WTF.pro:

File:

• trunk/Source/JavaScriptCore/runtime/Options.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/runtime/Options.cpp

@@ -28 +28 @@
 
 #include <limits>
+#include <wtf/NumberOfCores.h>
 #include <wtf/PageBlock.h>
 
@@ -175 +176 @@
 
     int cpusToUse = 1;
-#if OS(DARWIN) && ENABLE(PARALLEL_GC)
-    int name[2];
-    size_t valueSize = sizeof(cpusToUse);
-    name[0] = CTL_HW;
-    name[1] = HW_AVAILCPU;
-    sysctl(name, 2, &cpusToUse, &valueSize, 0, 0);
+#if ENABLE(PARALLEL_GC)
+    cpusToUse = WTF::numberOfProcessorCores();
 #endif
     // We don't scale so well beyond 4.