-XX:-PrintCompilation doesn't output

Y. Srinivas Ramakrishna Y.S.Ramakrishna at Sun.COM
Thu Nov 19 16:43:15 PST 2009


On 11/19/09 16:39, Y. Srinivas Ramakrishna wrote:
> On 11/19/09 16:25, David Schlosnagle wrote:
>> I wanted to pass on the following link as I know it has helped me in
>> the past find the definitions for some of the more hidden HotSpot JVM
>> options and which version they were introduced. If I get a chance I
>> could take a stab at grepping out the new options for JDK 7.
> 
> Thanks for the link, i believe a rather popular one, as
> yr favourite search engine will reveal. (Thank you Joe, hereby bcc'd,
> for compiling & maintaining this!) An added plus would be to specify
> for each of the "version" columns, also a default setting/value
> may be? (Joe?)

On second thoughts, perhaps not. Given the multiplicity of
update releases and such, that level of detail might make
the table too busy and perhaps confusing on that account ...

-- ramki

> 
>>
>> http://blogs.sun.com/watt/resource/jvm-options-list.html
>>
>> - Dave
> 
> -- ramki
> 
>>
>>
>> On Thu, Nov 19, 2009 at 7:08 PM, Y. Srinivas Ramakrishna
>> <Y.S.Ramakrishna at sun.com> wrote:
>>> On 11/19/09 16:01, Ulf Zibis wrote:
>>>> I found out the reason, I should use "-XX:+PrintCompilation"
>>>>
>>>> Don't know, why '-' is stated here:
>>>> http://java.sun.com/javase/technologies/hotspot/vmoptions.jsp#DebuggingOptions 
>>>>
>>>
>>> The "-" (read "minus") specifies the default status of this option (i.e.
>>> off, disabled).
>>> (For other options where you see a "+", the default setting is "on". 
>>> I admit
>>> this can be a somewhat confusing documentation convention, at least 
>>> at first
>>> glance,
>>> and takes some getting used to.)
>>>
>>> -- ramki
>>>
>>>>
>>>> -Ulf
>>>>
>>>> Am 19.11.2009 10:59, Ulf Zibis schrieb:
>>>>> I've set "-XX:-PrintCompilation" on fastdebug-build jdk1.7.0_b76, 
>>>>> but got
>>>>> nothing than:
>>>>>
>>>>> VM option '-PrintCompilation'
>>>>>
>>>>> Any ideas ?
>>>>>
>>>>> -Ulf
>>>>>
>>>>>
>>>>>
>>>
> 
> 



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