Greetings, The next step would be to run some tool such as jconsole or jvisualvm on the same machine to see what is going on in your netbeans instance.
At least you will find out what thread is creating trouble. -- Mark A. Flacy mfl...@verizon.net On Wednesday, October 20, 2021 1:57:03 PM CDT Thomas Wolf wrote: > Hi Mark, > I think this CPU abuse happens independent of project size or resources. I > already had modified my netbeans.conf to give it plenty of heap (2-4gb), > but I’m not even running anything ‘large’ - when this happens, there are > always only two projects open in the IDE - one is a library project with > just a couple dozen java files and a J2SE project with less than 100 source > files. Downright puny! A few years back I was working on a project with > 5000 java files and NB never even broke a sweat. This bug with external > changes causing NB a tizzy has been around for awhile. I think there was a > way to turn external checking off, but I can’t seem to find it right now. > Plus the disadvantage would be that when I do occasionally externally > inject changes (eg copying an image file into the project source tree), NB > might not react appropriately. :-( > > Anyway, any further suggestions, let me know. Much appreciated. > > Tom > > p.s. has anyone noticed that macOS Monterey now no longer has an “Anywhere” > option in System Settings->Security & Privacy->General->Allow apps > downloaded from ??? Annoying as hell. It’s already refused to run half a > dozen things I downloaded and wanted to run - have to manually give an > exception :-( Does anyone know of a way to turn this off? I haven’t tried > downloading a new version of NB lately, but macOS won’t run that either, I > don’t think, without manual exception. > > > > On Oct 20, 2021 at 1:18:58 PM, Mark A. Flacy <mfl...@verizon.net.invalid> > > wrote: > > Greetings, > > > > How many projects are in your projects panel? > > > > If you haven't modified (God, I hate this) "/Applications/NetBeans/Apache\ > > NetBeans\ 12.4.app/Contents/Resources/NetBeans/netbeans/etc/netbeans.conf" > > to allow a larger heap than the paltry default, you may be observing the > > JVM performing the garbage collection of death dance which you'll see in > > any java application that is operating at the edge of getting an OOM > > error. > > > > > > > > I have a MacBook Pro for work (32GB RAM) and I have changed the > > *netbeans_default_options* in the above file to have the additional flag > > of "-J-Xmx16384m" as well as setting *netbeans_jdkhome* to point to > > something sane. > > > > HTH. > > > > > > -- > > > > Mark A. Flacy > > > > mfl...@verizon.net > > > > On Wednesday, October 20, 2021 11:54:02 AM CDT Thomas Wolf wrote: > > > I have NB 12.4, but I have noticed the same behavior on previous NBs as > > > > > > well: > > > > > > > > > > > > Most of the time, my MacBook Pro is quiet as can be. But every now and > > > > > > then (every other day?), I’d be surfing the web or reading the mail when > > > > my > > > > > fans start spinning up - often getting to their max speed *and staying > > > > > > there*. Usually, I’m not doing anything CPU intensive at all and when I > > > > > > look at the Activity Monitor, it’s always Netbeans taking 100-200% of > > > the > > > > > > CPU. And *always*, when open the Netbeans window, there at the bottom > > > > > > would be a message indicating that NB is checking (or waiting? can’t > > > > > > remember the exact wording) for external changes. I assume that’s the > > > NB > > > > > > feature that checks to see if any project-related source was modified > > > > > > outside the IDE? This has got to be a bug - there’s no way something > > > > like > > > > > that should be a heavy load on a CPU. > > > > > > > > > > > > Is there something I can do when I next observe this behavior to help > > > > track > > > > > down this bug? I think I’ve had this happen for at least a year. If > > > > there > > > > > isn’t - is there a way to globally turn it off? > > > > > > > > > > > > I’m on macOS 12.0.1 (Monterey) running NB with OpenJDK 17, but as I > > > said, > > > > > > this has happened on earlier NB and earlier versions of Java. My > > > > computer > > > > > is standalone - i.e. no corporate network, not networked file systems. > > > > > > Just the laptop and a wireless connection to the Internet (via Starlink > > > > > > and, before that, via Verizon LTE). > > > > > > > > > > > > Thanks for any suggestions, > > > > > > Tom --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org For additional commands, e-mail: users-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
