Re: [jbosstools-dev] JBDS9/Mars Performance
----- Original Message -----
From: "Max Rydahl Andersen" <manderse(a)redhat.com>
To: "Rastislav Wagner" <rawagner(a)redhat.com>
Cc: "jbosstools-dev" <jbosstools-dev(a)lists.jboss.org>
Sent: Monday, May 4, 2015 11:59:30 AM
Subject: Re: JBDS9/Mars Performance
> I have a few things I'd like to ask/discuss about performance.
I'm cc'ing this on jbosstools-dev@ so those who are working on the
related issues can chime in too.
> 1) I heard that you know about some performance issues in latest
> JBDS/Eclipse builds. Could you point me to where can I find details
> about those issues ?
we have multiple reports over the last releases that our CDI and JPA
tooling gets slow on large projects.
Latest one was discussed on irc:
http://transcripts.jboss.org/channel/irc.freenode.org/%23jbosstools/2015/...
(look for "attiand")
> 2) I'm just running performance tests for JBDS9 Alpha2 and will update
> mojo doc once I have the results.
which doc exactly ?
this one
https://mojo.redhat.com/docs/DOC-1002291
> 3) Have you noticed that "UI Responsiveness monitoring" was added in
> Mars M6? (you can find it in Preferences->General->Tracking). It would
> be cool to use it but the question is what treshold should I use ?
> I was thinking something around 1second, longer jobs shouldn't be
> running in UI thread.
+100
> 4) The last thing - I'm playing with a few projects in workspace
> (50+-, mostly eclipse plugins) and when I change required-bundle in
> MANIFEST whole Eclipse will freeze for 20seconds.
> I will have to investigate further, but is there any Dev I could talk
> to about similar performance issues which are (not yet) related to any
> component ?
Snjezana tend to be good at finding causes, but performance is important
for us all, so ask away here in jbosstools-dev and #jbosstools chat.
First you should do is grab a a few jstack's of that eclipse when it is
freezing and see what is showing up in the stack trace.
If that does not reveal anything connect a profiler (jvisualvm might be
enough) to spot the hotspots for your case.
Will do. Thanks.