JEP 240: Remove the JVM TI hprof Agent

[Rainer Jung]

Am 16.02.2015 um 13:47 schrieb Florian Weimer:
> On 02/13/2015 01:46 AM, mark.reinhold at oracle.com wrote:
>> New JEP Candidate: http://openjdk.java.net/jeps/240
>
> Removal of the hprof agent interferes with my TLS performance work.  I'm
> not complaining (removing cruft is always a good idea), I'm just
> providing a data point.
>
> If I understand VisualVM correctly, it is GUI-only, so it will not work
> in headless deployments.  I'm not convinced that many production systems
> allow remote management access (direct support for SSH tunneling might
> address this concern, though).  It's sometimes a challenge to get
> additional software installed in a production environment—and hprof is
> just a command line option away.
>
> I understand that hprof is not the best JVM profiler out there, but it
> has been pretty useful to me.

+1, that are exactly the reasons why I use hprof. It is just there (no 
need to install stuff), it doesn't need a guy and I can analyze the 
result using simple scripting tools. I did use it very successful e.g. 
to optimize allocation behavior of applications. Yes, most people will 
prefer a GUI, but some can do harder stuff with a commandline interface, 
textual output and scripting.

BTW: that's how I also used jhat, scripting against the http interface. 
Maybe Eclipse MAT can be scripted as well and I just don't know how to 
do it. But that's the other JEP (241), so OT here.

Regards,

Rainer