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53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
.TH j_profile.d 1m "$Date: 2015/09/30 22:01:09 $" "USER COMMANDS"
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.SH NAME
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j_profile.d - sample stack traces with Java translations using DTrace.
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.SH SYNOPSIS
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.SH DESCRIPTION
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This samples stack traces for the process specified. This stack trace
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will cross the JVM and system libraries, and insert translations for Java
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stack frames where appropriate. This is best explained with an example
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stack frame output,
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Func_loop.func_c()V
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Func_loop.func_b()V
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Func_loop.func_a()V
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Func_loop.main([Ljava/lang/String;)V
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StubRoutines (1)
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libjvm.so`__1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHan
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libjvm.so`__1cCosUos_exception_wrapper6FpFpnJJavaValue_pnMmetho
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libjvm.so`__1cJJavaCallsEcall6FpnJJavaValue_nMmethodHandle_pnRJ
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libjvm.so`__1cRjni_invoke_static6FpnHJNIEnv__pnJJavaValue_pnI_j
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libjvm.so`jni_CallStaticVoidMethod+0x15d
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java`JavaMain+0xd30
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libc.so.1`_thr_setup+0x52
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libc.so.1`_lwp_start
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101
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The lines at the top are Java frames, followed by the JVM (libjvm.so).
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The JVM symbols may be translated by passing the output through c++filt.
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.SH OS
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Solaris
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.SH STABILITY
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Evolving - uses the DTrace hotspot provider, which may change
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as additional features are introduced. Check Java/Readme
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to see what version these scripts are based on.
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.SH EXAMPLES
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.TP
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Default output,
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#
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.B j_profile.d
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.PP
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.PP
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.SH DOCUMENTATION
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See the DTraceToolkit for further documentation under the
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Examples, Notes and Docs directories. The example files may be
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especially useful as they aim to demonstrate how to interpret
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the output.
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.SH EXIT
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j_profile.d will run until Ctrl-C is hit.
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.SH AUTHOR
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Brendan Gregg
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[CA, USA]
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.SH SEE ALSO
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dtrace(1M)
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