Archive for the ‘Uncategorized’ Category

I love it when a plan comes together – systemtap meets java!

With the recent releases of Systemtap 0.9.9 and IcedTea7 1.11 some pieces of the systemtap whole system observability picture come together. On top of the “meta-probes” in hotspot (for garbage collection, monitors, object allocation, threads, etc.) we now also see the java language level tracing coming to life. Always wondered what really was going on […]

Welcome Lenny

Just did an aptitude dist-upgrade to get planet.classpath.org and the main IcedTea backup server from Debian Etch to Debian Lenny. Pretty smooth. Needed to adjust some apache2 NameVirtualHost settings as outlined in the release notes. And sadly, had to pin mercurial to 0.9.5, since newer versions don’t work nicely with the forest extension and serving […]

Systemtap 0.9 – Cast away

Another nice feature for Systemtap 0.9 was added by Josh Stone. Systemtap can collect data from any variable in scope at a probe point using the DWARF debug info. You can even dereference pointers, access struct members, array elements, etc. This is very powerful when collecting data during a trace and the systemtap runtime makes […]

Systemtap 0.9 – Markers everywhere

We recently released Systemtap 0.9 and one of the nice new features included is the user space markers that Stan Cox has been working on. They were designed so that they should be compatible with dtrace static user space markers, so you can immediately take advantage of them if your program already has those included. […]

Some Fosdem pictures

Sarah has been publishing sets of pictures from the Fosdem Free Java Meeting.

IcedTea 1.4 with XRender support

IcedTea 1.4 got released this week. And while it is full of new exciting stuff, you really should check out the XRender support by Clemens Eisserer. Especially if you often use java through remote X. It just flies! Trying it out is easy as soon as the new IcedTea hits a distro near you: java […]

What are you working on? – Systemtap!

Sometimes people ask me what Red Hat actually pays me for. Aren’t you working on something java related? Although my manager has been very generous and allows me to spend some (but not too much!) time on helping out the free java efforts, my main job is in the engineering tools group (gcc, gdb/Archer [formerly […]

Posters for Libre Java Fosdem meeting

Looking for a handy reference of all the talks in the Free Java developer room at Fosdem 2009 in Brussels, Saturday 7 and Sunday 8 February? Look no further! PDF Poster and ODG Poster.

Free Java Meeting at Fosdem

Our libre-java meeting at Fosdem is approaching quickly. February 7 and 8 in Brussels, Belgium. If you want to give a talk, do a demo or have some general presentation/hack-session in our room, please act quickly so we can still schedule it (the deadline is end of this week!). This is what will be at […]

planet.classpath.org moved

planet.classpath.org moved servers and if done correctly nobody will notice (except for the new server having a totally sweet favicon ). But if you do happen to notice anything odd with the planet after the move, then please do yell and scream.