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https://issues.apache.org/jira/browse/NETBEANS-1185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hendi updated NETBEANS-1185:
----------------------------
Description:
I have a rather large Java project with over 600 source files. It is a console
application, no GUI code. At startup it loads a lot of data (among other things
it memory-maps some files that are around ~500 MB). When left unconstrained, it
uses around 1.1 GB of memory once it is done, but it also works fine with
-Xmx768M. When not running under a debugger, it takes around 1 minute to
complete loading.
When launching it using NetBeans' debugger, however, it never completes. It
will load for around 5 minutes (at which point it still isn't even half
done..), then CPU usage for the process goes to 0% and netbeans64 sits at 12.5%
(seems like a single thread running a spin loop or so). I use the current
release version of NetBeans 9 running under JDK 10.0.2.
Unfortunately I cannot disclose much more about the application's nature. One
part where it is especially slow under the debugger involves a lot of Nashorn
activity. No breakpoints or watches are being used.
When I was still using NetBeans 8.2 with JDK 8, it was fine. Debugging was only
marginally slower than launching it without a debugger.
was:
I have a rather large Java project with over 600 source files. It is a console
application, no GUI code. At startup it loads a lot of data (among other things
it memory-maps some files that are around ~500 MB). When left unconstrained, it
uses around 1.1 GB of memory once it is done, but it also works fine with
-Xmx768M. When not running under a debugger, it takes around 1 minute to
complete loading.
When launching it using NetBeans' debugger, however, it never completes. It
will load for around 5 minutes (at which point it still isn't even half
done..), then CPU usage for the process goes to 0% and netbeans64 sits at 12.5%
(seems like a single thread running a spin loop or so). I use the current
release version of NetBeans 9 running under JDK 10.0.2.
Unfortunately I cannot disclose much more about the application's nature. One
part where it is especially slow under the debugger involves a lot of Nashorn
activity.
When I was still using NetBeans 8.2 with JDK 8, it was fine. Debugging was only
marginally slower than launching it without a debugger.
> Application extremely slow under debugger, then freezes
> -------------------------------------------------------
>
> Key: NETBEANS-1185
> URL: https://issues.apache.org/jira/browse/NETBEANS-1185
> Project: NetBeans
> Issue Type: Bug
> Components: debugger - Java
> Affects Versions: 9.0
> Environment: Windows 10 x64 (1709), JDK 10.0.2, Core i7 6700K, 16 GB
> RAM
> Reporter: Hendi
> Priority: Major
>
> I have a rather large Java project with over 600 source files. It is a
> console application, no GUI code. At startup it loads a lot of data (among
> other things it memory-maps some files that are around ~500 MB). When left
> unconstrained, it uses around 1.1 GB of memory once it is done, but it also
> works fine with -Xmx768M. When not running under a debugger, it takes around
> 1 minute to complete loading.
> When launching it using NetBeans' debugger, however, it never completes. It
> will load for around 5 minutes (at which point it still isn't even half
> done..), then CPU usage for the process goes to 0% and netbeans64 sits at
> 12.5% (seems like a single thread running a spin loop or so). I use the
> current release version of NetBeans 9 running under JDK 10.0.2.
> Unfortunately I cannot disclose much more about the application's nature. One
> part where it is especially slow under the debugger involves a lot of Nashorn
> activity. No breakpoints or watches are being used.
> When I was still using NetBeans 8.2 with JDK 8, it was fine. Debugging was
> only marginally slower than launching it without a debugger.
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