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Bug 398426 - Use num procs - 1 on Mac for optimal parallel builds.

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Changed the text of the UI since optimal is not always number of
processors.
This commit is contained in:
Doug Schaefer 2013-01-17 12:39:35 -05:00
parent 6aebe7dcd5
commit 4b22b8c6bc
2 changed files with 8 additions and 2 deletions
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8
build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/Builder.java
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@ -2522,7 +2522,13 @@ public class Builder extends HoldsOptions implements IBuilder, IMatchKeyProvider
* The function never returns number smaller than 1.
*/
public int getOptimalParallelJobNum() {
return Runtime.getRuntime().availableProcessors();
// Bug 398426: On my Mac running parallel builds at full tilt hangs the desktop.
// Need to pull it back one.
int j = Runtime.getRuntime().availableProcessors();
if (j > 1 && Platform.getOS().equals(Platform.OS_MACOSX))
return j - 1;
else
return j;
}
/**

2
build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/internal/ui/Messages.properties
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@ -32,7 +32,7 @@ BuilderSettingsTab_8=&Expand Env. Variable Refs in Makefiles
BuilderSettingsTab_9=Build settings
BuilderSettingsTab_10=Stop on first build error
BuilderSettingsTab_EnableParallelBuild=Enable parallel build
BuilderSettingsTab_UseOptimalJobs=Use number of processors ({0})
BuilderSettingsTab_UseOptimalJobs=Use optimal jobs ({0})
BuilderSettingsTab_UseParallelJobs=Use parallel jobs:
BuilderSettingsTab_UseUnlimitedJobs=Use unlimited jobs
BuilderSettingsTab_14=Workbench Build Behavior