Milian Wolff

Hey all!

I’m happy to release Massif Visualizer v0.2. This is mainly a “fix the build-system” release, no new features have been added.

You can download it here: http://kde-apps.org/content/show.php?content=122409

Mac Support

Thanks to the reports by Chris Jones it’s now possible to build and use Massif Visualizer on Max OS X, see e.g.:

http://www.hep.phy.cam.ac.uk/~jonesc/massif-visualizer-OSX-1.png
http://www.hep.phy.cam.ac.uk/~jonesc/massif-visualizer-OSX-2.png

He has also submitted the portsfile for inclusion in Macports: https://trac.macports.org/ticket/27168

KGraphViewer now optional

I’ve made the KGraphViewer dependency optional, if anyone does not want it (even though this removes like 50% of the tools features).

KDE Infrastructure

I’ve also prepared the steps for moving Massif-Visualizer into KDE Extragear and asked kde-devel for review. I already use the KDE infrastructure now:

Website:

https://projects.kde.org/projects/playground/sdk/massif-visualizer

Git:

git clone git://git.kde.org/massif-visualizer

Bug tracker:

https://bugs.kde.org/enter_bug.cgi?product=massif-visualizer&format=guided

Mailing List:

https://mail.kde.org/mailman/listinfo/massif-visualizer

massif-visualizer@kde.org

This also means that I’ll shortly get translations by the awesome KDE-i18n-Team, so stay tuned for a 0.3 including translations!

Open Suse Buildservice

I’ve also spent quite some time today battling with OBS and can provide at least packages for Fedora, Mandriva and Open Suse now. I’m still waiting for help on the remaining issues and once they are resolved I’ll add the remaining packages.

Changelog

ChangeLog for massif-visualizer v0.2
====================================
 
* Milian Wolff: set version to 0.2
* Milian Wolff: fix conditional
* Milian Wolff: make kgraphviewer dependency optional
* Milian Wolff: fix FindKGraphViewer.cmake
* Milian Wolff: fix .po name
* Milian Wolff: remove some esoteric cli option for XGETTEXT that does not make 
any sense according to Albert
* Milian Wolff: fix: install libs to make sure they can get loaded on OSX e.g.
* Milian Wolff: fix compile warning about init order, improve style by having 
just one init per line
* Milian Wolff: add export macros everywhere, make visualizer helper use the 
Massif namespace as well
* Milian Wolff: add Messages.sh

Good news everyone!

Since Gaël finally came around to release KGraphViewer 2.1, I can go ahead and do the same for Massif Visualizer!

Download Massif Visualizer 0.1

This is the first release and I would be very happy if more users gave me their feedback. I intend to move to git.kde.org soon in order to leverage the KDE infrastructure (mostly translations, bug tracker, releases)… This also means: There are no translations yet! I also intend to update my OBS repository to provide packages for the first release.

Stay tuned for updates.

memory consumption overview

Hello everyone!

In my opinion, the massif visualizer is ready for testing. I bet there are still a few rough edges, but the most important features are in. So if you are going to do any memory profiling these days, please take a look at my tool and give me feedback. I’d be especially interested in whether the massif visualizer helps in the work flow to analyze massif data files.

My personal work flow so far is the following:

callgraph of detailed massif snapshot

1. generate massif log, one way or the other (unit tests preferred since they give you reproducible test cases)
2. open log in massif-visualizer, look at overall consumption chart
   1. how does the memory consumption evolve? is there a memleak?
   2. are there designated peaks which could be reduced?
   3. are there any (significant) contributions to the memory consumption, that needlessly stay over the whole application life?
3. to find the actual culprits in code and/or to grasp the composition of a memory peak, use the detailed snapshot analysis

I wonder how I could improve the tool to also help with verifying that a fix helps, e.g. by either overlaying two charts or by only showing the difference. The problem here is of course that it would only work with reproducible test cases and that it needs interpolation since the snapshots are taken at random points in time. Still, it would be nice to open two massif logs and seeing the impact on memory consumption of a patch visually.

Note: To anyone interested: I generate the callgraphs by converting the massif snapshot trees into a graphviz DOT file. That one I than visualize with KGraphViewer KPart. Since KGraphViewer was in no shape to visualize the huge amount of data in my use case, I had to optimize it greatly and push in some more features to make it better suitable for thirdparty users. To integrate it better, I had to write a public interface, which also means that you need KGraphViewer installed from source to be able to compile Massif Visualizer (I’ll make it optional later on). Hence get the sources from here (packages by your distributor won’t be enough): http://websvn.kde.org/trunk/extragear/graphics/kgraphviewer/

Just a quick status update: Massif Visualizer now reacts on user input. Meaning: You can click on the graph and the corresponding item in the treeview gets selected and vice versa. It’s a bit buggy since KDChart is not reliable on what it reports, but it works quite well already.

Furthermore the colors should be better now, peaks are labeled (better readable on bright color schemes, I’m afraid to say…), legend is shown, …

Now lets see how I can make the treeview more useful!