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18 lines
674 B
Plaintext
18 lines
674 B
Plaintext
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Java - DTracing Java
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These scripts trace the JVM, and require the Java hotspot provider which
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was shipped with Java starting with version 1.6.0.
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Some of these scripts measure method and object events, and require
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the Java process to be run using the "+ExtendedDTraceProbes" flag.
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For example,
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java -XX:+ExtendedDTraceProbes classfile
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The ExtendedDTraceProbes flag is not on by default to avoid the additional
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overhead for maintaining these additional probes. When this flag is
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enabled, the JVM may execute slightly slower than before; when the probes
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are also enabled (especially method probes), the JVM may execute
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significantly slower.
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