Out-of-the box configuration is extremely slow and un-usable on first launch whilst the 'Background scanning of projects' was running .. Settings and open project list imported from NB 8.2 - which works like a charm ;-) Very High CPU usage for > 1 hour, CPU cooling fan on constantly. See enclosed screenshot. I updated netbeans.conf to include '-J-Xms1g' for a second startup, did not seem to make any difference.
Adding '-J-Xmx16g' apparently improved things dramatically - the third startup shows no errors. Removing '-J-Xmx16g' apparently makes things worse again .. back to a long running Background scanning of projects, and some Low memory errors are now kicking in .. Restoring '-J-Xmx16g' apparently fixes the issue, project opening and background scanning completed 50 seconds after launch. Hardware is a recent Lenovo laptop with 32Gb RAM and i7-7820HQ CPU OS is up to date 64 bit Windows 10 Enterprise. Copy Paste from NB About: Product Version: Apache NetBeans IDE 10.0 (Build incubator-netbeans-release-380-on-20181217) Java: 9.0.1; Java HotSpot(TM) 64-Bit Server VM 9.0.1+11 Runtime: Java(TM) SE Runtime Environment 9.0.1+11 System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb) User directory: C:\Users\pjl\AppData\Roaming\NetBeans\10.0 Cache directory: C:\Users\pjl\AppData\Local\NetBeans\Cache\10.0 --------------------------------------------------------------------- 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