org.openjdk.jmh.profile

Interface ExternalProfiler

    • Method Detail

      • addJVMInvokeOptions

        Collection<String> addJVMInvokeOptions(BenchmarkParams params)
        Prepend JVM invocation with these commands.
        Parameters:
        params - benchmark parameters used for current launch
        Returns:
        commands to prepend for JVM launch
      • addJVMOptions

        Collection<String> addJVMOptions(BenchmarkParams params)
        Add JVM these options to the run.
        Parameters:
        params - benchmark parameters used for current launch
        Returns:
        options to add to JVM launch
      • beforeTrial

        void beforeTrial(BenchmarkParams benchmarkParams)
        Run this code before starting the trial. This method will execute before starting the benchmark JVM.
        Parameters:
        benchmarkParams - benchmark parameters used for current launch
      • afterTrial

        Collection<? extends Result> afterTrial(BenchmarkResult br,                                      long pid,                                      File stdOut,                                      File stdErr)
        Run this code after the trial is done. This method will execute after benchmark JVM had stopped.
        Parameters:
        br - benchmark result that was the result of the trial
        stdOut - file containing the standard output from the benchmark JVM
        stdErr - file containing the standard error from the benchmark JVM
        Returns:
        profiler results
      • allowPrintOut

        boolean allowPrintOut()
        If target VM communicates with profiler with standard output, this method can be used to shun the output to console. Profiler is responsible for consuming the standard output and printing the relevant data from there.
        Returns:
        returns true, if profiler allows harness to print out the standard output
      • allowPrintErr

        boolean allowPrintErr()
        If target VM communicates with profiler with standard error, this method can be used to shun the output to console. Profiler is responsible for consuming the standard error and printing the relevant data from there.
        Returns:
        returns true, if profiler allows harness to print out the standard errpr

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