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JRE 1.4.2_02 hsperfdata_SYSTEM

P: n/a
Since I've upgraded my Java to 1.4.2_02, I've noted that it will crate
a subdirectory named hsperfdata_SYSTEM under windows/temp and some
Perflib_Perfdata_xxx files as well. The problem with these files is
that I cannot delete them (it's not own by me ...the administrator!).
I have a temporary file clean up utilites which tried to clean up
windows/temp directory when I login. It failed since then. I am wonder
why Java need these files? How can I delete them? or can I relocate
them to somewhere else?
Bosco

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Jul 17 '05 #1
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P: n/a
In article <l8********************************@4ax.com>, YesBalala wrote:
Since I've upgraded my Java to 1.4.2_02, I've noted that it will crate
a subdirectory named hsperfdata_SYSTEM under windows/temp and some
Perflib_Perfdata_xxx files as well. The problem with these files is
that I cannot delete them (it's not own by me ...the administrator!).
I have a temporary file clean up utilites which tried to clean up
windows/temp directory when I login. It failed since then. I am wonder
why Java need these files? How can I delete them? or can I relocate
them to somewhere else?


You should be able to disable them with the -XX:-UsePerfData flag
on the command line if you can set arbitrary command line flags.

If they are running as system then it is probably from some service
or some such, and you really shouldn't be deleting a service's
temporary files while it is running. But sincey ou don't mention
what OS you are using or what programs you are running, isn't much
anyone can say about that.

They are vastly underdocumented files that contain some very useful
performance information for developers, in particular as it relates
to garbage collection. You can view the info available through
them with the jvmstat tool from
http://developers.sun.com/dev/coolstuff/jvmstat/
Jul 17 '05 #2

P: n/a
On 11 Dec 2003 07:39:33 GMT, Marc Slemko <ma***@znep.com> wrote:
You should be able to disable them with the -XX:-UsePerfData flag
on the command line if you can set arbitrary command line flags.
Then, I will have to find out which service is causing it first? or,
can I set it on Java Plug-in or somewhere else?
...But sincey ou don't mention
what OS you are using or what programs you are running, isn't much
anyone can say about that.
I am running Windows XP.
They are vastly underdocumented files that contain some very useful
performance information for developers, in particular as it relates
to garbage collection. You can view the info available through
them with the jvmstat tool from
http://developers.sun.com/dev/coolstuff/jvmstat/


As I am not java developer, what's the point of having these data? If
it has to be there, can I move it to somewhere else?

Bosco

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Due to heavy spamming, I was forced to use an invalid reply address.
Do NOT reply to this posting via email directly.
Jul 17 '05 #3

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