Package org.teavm.perf

Class CBackend

java.lang.Object

org.teavm.perf.BenchmarkBackend

org.teavm.perf.CBackend

public class CBackend
extends BenchmarkBackend

Compiles benchmarks to C, then compiles C code to an executable and runs it. Every fork runs in a separate process.

Field Summary

Fields inherited from class org.teavm.perf.BenchmarkBackend

environment

Constructor Summary

Constructors

Constructor	Description
CBackend(BenchmarkEnvironment environment)

Method Summary

Modifier and Type	Method	Description
CompiledBenchmark	compile(BenchmarkInfo benchmark, File directory)
String	getDescription()	Human-readable description, used in reports.
String	getName()	Short identifier of the backend, also used in command line.
void	run(CompiledBenchmark benchmark, String argument, Consumer<String> outputConsumer)	Runs compiled benchmark once, i.e. performs a single JMH fork.
void	setBuildScript(File buildScript)	Sets script that is used to compile C code instead of invoking C compiler directly.
void	setCompiler(String compiler)
void	setCompilerFlags(List<String> compilerFlags)
void	setEnvScript(File envScript)	Sets script that prepares environment for C compiler (for example, sets up MSVC developer environment).

Methods inherited from class org.teavm.perf.BenchmarkBackend

build, copyResource, start, stop, supportsCpuProfiling, takeCpuProfile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CBackend

public CBackend(BenchmarkEnvironment environment)

Method Details

setCompiler

public void setCompiler(String compiler)

setCompilerFlags

public void setCompilerFlags(List<String> compilerFlags)

setBuildScript

public void setBuildScript(File buildScript)

Sets script that is used to compile C code instead of invoking C compiler directly. The script runs in the directory with generated C code and must produce benchmark executable (benchmark.exe on Windows) in the same directory.

setEnvScript

public void setEnvScript(File envScript)

Sets script that prepares environment for C compiler (for example, sets up MSVC developer environment). The script runs once, then the environment it produces is used for every compiler invocation.

getName

public String getName()

Description copied from class: BenchmarkBackend

Short identifier of the backend, also used in command line.

Specified by:

getName in class BenchmarkBackend

getDescription

public String getDescription()

Description copied from class: BenchmarkBackend

Human-readable description, used in reports. Mapped to vmName field of JMH JSON output.

Specified by:

getDescription in class BenchmarkBackend

compile

public CompiledBenchmark compile(BenchmarkInfo benchmark,
 File directory)
                          throws BenchmarkException

Specified by:

compile in class BenchmarkBackend

Throws:

BenchmarkException

run

public void run(CompiledBenchmark benchmark,
 String argument,
 Consumer<String> outputConsumer)
         throws BenchmarkException

Description copied from class: BenchmarkBackend

Runs compiled benchmark once, i.e. performs a single JMH fork.

Specified by:

run in class BenchmarkBackend

Parameters:

outputConsumer - receives every line written by benchmark to stdout.

Throws:

BenchmarkException