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< h1 > monitor< a class = "headerlink" href = "#monitor" title = "Permalink to this headline" > ¶< / a > < / h1 >
< blockquote >
< div > < p > Monitor method invocation.< / p >
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< p > Monitor invocation for the method matched with < code class = "docutils literal notranslate" > < span class = "pre" > class-pattern< / span > < / code > and < code class = "docutils literal notranslate" > < span class = "pre" > method-pattern< / span > < / code > .< / p >
< p > < code class = "docutils literal notranslate" > < span class = "pre" > monitor< / span > < / code > is not a command returning immediately.< / p >
< p > A command returning immediately is a command immediately returns with the result after the command is input, while a non-immediate returning command will keep outputting the information from the target JVM process until user presses < code class = "docutils literal notranslate" > < span class = "pre" > Ctrl+C< / span > < / code > .< / p >
< p > On Arthas’ < / p >
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< th align = "right" > Item< / th >
< th align = "left" > Specification< / th >
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< td align = "right" > timestamp< / td >
< td align = "left" > timestamp< / td >
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< td align = "right" > class< / td >
< td align = "left" > Java class< / td >
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< td align = "right" > method< / td >
< td align = "left" > method (constructor and regular methods)< / td >
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< td align = "right" > total< / td >
< td align = "left" > calling times< / td >
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< td align = "right" > success< / td >
< td align = "left" > success count< / td >
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< td align = "right" > fail< / td >
< td align = "left" > failure count< / td >
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< td align = "right" > rt< / td >
< td align = "left" > average RT< / td >
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< td align = "right" > fail-rate< / td >
< td align = "left" > failure ratio< / td >
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< p > Parameter < code class = "docutils literal notranslate" > < span class = "pre" > [c:]< / span > < / code > stands for cycles of statistics. Its value is an integer value in seconds.< / p >
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< td align = "right" > < em > class-pattern< / em > < / td >
< td align = "left" > pattern for the class name< / td >
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< td align = "right" > < em > method-pattern< / em > < / td >
< td align = "left" > pattern for the method name< / td >
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< td align = "right" > < code > [E]< / code > < / td >
< td align = "left" > turn on regex matching while the default is wildcard matching< / td >
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< td align = "right" > < code > [c:]< / code > < / td >
< td align = "left" > cycle of statistics, the default value: < code > 120< / code > s< / td >
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< div class = "highlight-bash notranslate" > < div class = "highlight hljs" > < pre class = "bash" > $ monitor -c 5 demo.MathGame primeFactors
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 94 ms.
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:06:38 demo.MathGame primeFactors 5 1 4 1.15 80.00%
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:06:43 demo.MathGame primeFactors 5 3 2 42.29 40.00%
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:06:48 demo.MathGame primeFactors 5 3 2 67.92 40.00%
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:06:53 demo.MathGame primeFactors 5 2 3 0.25 60.00%
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:06:58 demo.MathGame primeFactors 1 1 0 0.45 0.00%
timestamp class method total success fail avg-rt(ms) fail-rate
-----------------------------------------------------------------------------------------------
2018-12-03 19:07:03 demo.MathGame primeFactors 2 2 0 3182.72 0.00%< / pre > < / div >
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