Package org.openjdk.jmh.runner
Class CompilerHints
- java.lang.Object
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- org.openjdk.jmh.runner.CompilerHints
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public class CompilerHints extends Object
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static void
addCompilerHints(List<String> command)
We need to generate a compiler hints file such that it includes: No compile command files are specified and no .hotspotrc file is available, then do JMH hints only No compile command files are specified and .hotspotrc file is available, then do JMH hints + .hotspotrc 1 to N compile command files are specified, then do JMH hints + all specified hints in filesstatic CompilerHints
defaultList()
static CompilerHints
fromFile(String file)
static CompilerHints
fromResource(String resource)
Set<String>
get()
static List<String>
getCompileCommandFiles(List<String> command)
protected List<Reader>
getReaders()
Helper method for creating a Reader for the list file.static String
hintsFile()
static void
printBlackhole(PrintStream out)
static void
printWarnings(PrintStream out)
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Field Detail
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LIST
public static final String LIST
- See Also:
- Constant Field Values
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Method Detail
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defaultList
public static CompilerHints defaultList()
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hintsFile
public static String hintsFile()
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fromResource
public static CompilerHints fromResource(String resource)
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fromFile
public static CompilerHints fromFile(String file)
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getCompileCommandFiles
public static List<String> getCompileCommandFiles(List<String> command)
- Parameters:
command
- command arguments list- Returns:
- the compiler hint files specified by the command
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addCompilerHints
public static void addCompilerHints(List<String> command)
We need to generate a compiler hints file such that it includes:- No compile command files are specified and no .hotspotrc file is available, then do JMH hints only
- No compile command files are specified and .hotspotrc file is available, then do JMH hints + .hotspotrc
- 1 to N compile command files are specified, then do JMH hints + all specified hints in files
This is a departure from default JVM behavior as the JVM would normally just take the last hints file and ignore the rest.
- Parameters:
command
- all -XX:CompileCommandLine args will be removed and a merged file will be set
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printBlackhole
public static void printBlackhole(PrintStream out)
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printWarnings
public static void printWarnings(PrintStream out)
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