FYI: ms & mx vs Xms & Xmx

[Jacques Le Roux]

Hi,

This is more for your information and not really a question nor worry.

Xms & Xmx are widely used and their behaviour should not change quickly, but they are non-standard options. You can list
non-standard options using java -X. Note the warning: "The -X options are non-standard and subject to change without notice."

I read that there is "now" ms & mx standard options, though when I use java -? on my "java version "1.6.0_33" on XP, I don't see
them.

Oracle documentation is pretty vague and not updated
http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html
http://stas-blogspot.blogspot.fr/2011/07/most-complete-list-of-xx-options-for.html

I read also that "now" does not concern only java 1.7 but also 1.6 after _24, not quite clear...

Jacques

[Jacopo Cappellato-4]

On Jun 24, 2012, at 9:23 AM, Jacques Le Roux wrote:

> I read that there is "now" ms & mx standard options

Hi Jacques, could you please send a reference to the source of this information?

Thanks

Jacopo

[Jacques Le Roux]

More than once, eg: http://stackoverflow.com/questions/5276197/is-java-heap-space-dictated-by-ram-or-hard-drive

Jacques

From: "Jacopo Cappellato" <[hidden email]>

> On Jun 24, 2012, at 9:23 AM, Jacques Le Roux wrote:
>
>> I read that there is "now" ms & mx standard options
>
> Hi Jacques, could you please send a reference to the source of this information?
>
> Thanks
>
> Jacopo
>
>

[Jacopo Cappellato-4]

It doesn't seem a very trusted source of information.

Jacopo

On Jun 24, 2012, at 10:31 AM, Jacques Le Roux wrote:

> More than once, eg: http://stackoverflow.com/questions/5276197/is-java-heap-space-dictated-by-ram-or-hard-drive
>
> Jacques
>
> From: "Jacopo Cappellato" <[hidden email]>
>> On Jun 24, 2012, at 9:23 AM, Jacques Le Roux wrote:
>>> I read that there is "now" ms & mx standard options
>> Hi Jacques, could you please send a reference to the source of this information?
>> Thanks
>> Jacopo
>>

[Jacques Le Roux]

I wonder what is a trusted source information in this context :o)
It seems that Oracle (and even Sun before) is hidding a lot of information, or they don't upate...
Refer to http://stas-blogspot.blogspot.fr/2011/07/most-complete-list-of-xx-options-for.html
Did not find anything like that for standard option though, and this one is hard to read I found.

Remember me M$ hidding stuff :/

Jacques

From: "Jacopo Cappellato" <[hidden email]>

> It doesn't seem a very trusted source of information.
>
> Jacopo
>
> On Jun 24, 2012, at 10:31 AM, Jacques Le Roux wrote:
>
>> More than once, eg: http://stackoverflow.com/questions/5276197/is-java-heap-space-dictated-by-ram-or-hard-drive
>>
>> Jacques
>>
>> From: "Jacopo Cappellato" <[hidden email]>
>>> On Jun 24, 2012, at 9:23 AM, Jacques Le Roux wrote:
>>>> I read that there is "now" ms & mx standard options
>>> Hi Jacques, could you please send a reference to the source of this information?
>>> Thanks
>>> Jacopo
>>>
>
>

[Jacques Le Roux]

Thanks Sharad,

The 2nd I already posted earlier, nothing about the subject in these links, right? Anyway it's no biggie...

Don't use html format by default for your mails. It increases the SpamAssasin score and this could be the reason some of your mails are rejected...

Jacques
  ----- Original Message -----
  From: sharad bhushan
  To: [hidden email]
  Sent: Monday, June 25, 2012 5:16 PM
  Subject: Re: FYI: ms & mx vs Xms & Xmx


  Jacques,



  Here are the references

  1. http://www.oracle.com/technetwork/java/javase/gc-tuning-6-140523.html

  2. http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

  Resending.. my mail is bouncing not sure why even when i am subscribed..

  Sharad



------------------------------------------------------------------------------
  From: Jacques Le Roux <[hidden email]>
  To: [hidden email]
  Sent: Sunday, 24 June 2012 5:54 PM
  Subject: Re: FYI: ms & mx vs Xms & Xmx


  I wonder what is a trusted source information in this context :o)
  It seems that Oracle (and even Sun before) is hidding a lot of information, or they don't upate...
  Refer to http://stas-blogspot.blogspot.fr/2011/07/most-complete-list-of-xx-options-for.html
  Did not find anything like that for standard option though, and this one is hard to read I found.

  Remember me M$ hidding stuff :/

  Jacques

  From: "Jacopo Cappellato" <[hidden email]>
  > It doesn't seem a very trusted source of information.
  >
  > Jacopo
  >
  > On Jun 24, 2012, at 10:31 AM, Jacques Le Roux wrote:
  >
  >> More than once, eg: http://stackoverflow.com/questions/5276197/is-java-heap-space-dictated-by-ram-or-hard-drive
  >>
  >> Jacques
  >>
  >> From: "Jacopo Cappellato" <[hidden email]>
  >>> On Jun 24, 2012, at 9:23 AM, Jacques Le Roux wrote:
  >>>> I read that there is "now" ms & mx standard options
  >>> Hi Jacques, could you please send a reference to the source of this information?
  >>> Thanks
  >>> Jacopo
  >>>
  >
  >