Extremely slow Josm

[Robin Lee]

Hi

I have a desktop and a laptop, both with fully updated Fedora 29. The
laptop is a fresh installation while the desktop has been upgraded from
previous versions of Fedora. And I have Josm installed on both.

Now the problem is that on the desktop Josm has become really slow. You
need some serious patience to use it. On the laptop it works fine as it
did on the desktop before. I've tried to reinstall Josm, but that
didn't help.

Josm is a Java application.

Any idea what could be wrong?

Cheers
Robin

[Rick Stevens]

On 1/3/19 1:05 PM, Robin Lee wrote:
>  Hi
>  
>  I have a desktop and a laptop, both with fully updated Fedora 29. The
>  laptop is a fresh installation while the desktop has been upgraded from
>  previous versions of Fedora. And I have Josm installed on both.
>  
>  Now the problem is that on the desktop Josm has become really slow. You
>  need some serious patience to use it. On the laptop it works fine as it
>  did on the desktop before. I've tried to reinstall Josm, but that
>  didn't help.
>  
>  Josm is a Java application.
>  
>  Any idea what could be wrong?
>  
If it runs better on the laptop than the desktop, that may indicate a
memory issue (either fragmentation or lack of free memory). Does it
behave better on the desktop if you reboot it? If so, then it's
most likely one of these issues. You probably restart the laptop more
often than the desktop so the laptop wouldn't exhibit the issue as
readily.

Utilities like free, vmstat and top can also help you see if it's a
memory issue.
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----------------------------------------------------------------------

[Jakub Jelen]

Hello,
do you have the same version from Fedora repositories on both? You can
try also to run the jnlp from

https://josm.openstreetmap.de/

or even flatpack

https://flathub.org/apps/details/org.openstreetmap.josm

The speed of running can be also caused by the hardware (you did not
point out if the hardware is similar or completely different). There
are many possibilities.

Do you have some josm plugins installed? Cleaning up some configuration
directories might also help, but I never had a problem with JOSM
performance (except for the fact that it is a java application).

Regards,
Jakub

On Thu, 2019-01-03 at 22:05 +0100, Robin Lee wrote:
>  Hi
>  
>  I have a desktop and a laptop, both with fully updated Fedora 29. The
>  laptop is a fresh installation while the desktop has been upgraded
>  from
>  previous versions of Fedora. And I have Josm installed on both.
>  
>  Now the problem is that on the desktop Josm has become really slow.
>  You
>  need some serious patience to use it. On the laptop it works fine as
>  it
>  did on the desktop before. I've tried to reinstall Josm, but that
>  didn't help.
>  
>  Josm is a Java application.
>  
>  Any idea what could be wrong?
>  
>  Cheers
>  Robin
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-- 
Jakub Jelen
Software Engineer
Security Technologies
Red Hat, Inc.

[Robin Lee]

On Fri, 2019-01-04 at 11:29 +0100, Jakub Jelen wrote:
>  Do you have some josm plugins installed?  
Thank you. That was it. My desktop josm had more than a dozen plugins
that had aggregated over the years. I threw them out and reinstalled
the ones I knew I wanted. After that my desktop josm was as responsive
as ever.

Cheers
Robin