You have been subscribed to a public bug:
I installed a fresh Ubuntu 16.04 64 bit from nightly build (2016-03-02).
Eclipse Mars.2 (4.5.2) is often very slow / hangs, especially on start
of actions (searching projects, importing them, search for updates,
install plugins etc.
Things I tried:
* openjdk8 /oracle java 8
* OS / CS nvidia driver
* unity / gnome (metacity and compizz)
* fresh workspace
jvisualvm shows that much cpu time is consumed by
rg.eclipse.swt.internal.gtk.OS._g_main_context_iteration[native] ...
** Affects: java-common
Importance: Undecided
Status: New
** Affects: java-common (Ubuntu)
Importance: Undecided
Status: Confirmed
** Affects: openjdk-9 (Ubuntu)
Importance: Undecided
Status: Confirmed
** Affects: swt-gtk (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: eclipse gtk hang java swt
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Eclipse and SWT are very slow/hang on a fresh 16.04 install (gtk3/swt issue)
https://bugs.launchpad.net/bugs/1552764
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