ltrace for RHEL 6 and 7


Debugging software is something akin to an art form but, regardless of the approach you prefer, having good information on what’s happening in your application is key. ltrace is one tool you may wish to add to your belt – a debugging tool that attaches to a running process, and prints to the terminal or a log file the library calls and/or system calls made by that process. In both its mode of operation and command line interface, ltrace is similar to strace. While strace only works for system calls, however, ltrace has no such restriction.

Continue reading


For more information about Red Hat Software Collections or Red Hat Developer Toolset, visit developer.redhat.com/RHEL.



For more information about Red Hat Enterprise Linux and other topics related to this article, visit one of these sites:

Red Hat Enterprise Linux
Red Hat Enterprise Linux Developer Program
Red Hat Enterprise Linux 7 is now generally available

 


Dave and Gunnar #55: Mike Guerette loves developers.


The Dave and Gunnar Show is run by two great guys and Red Hatters who do “government stuff”.  We crossed paths again recently and so did this podcast about Red Hat Enterprise Linux Developer Program, related developer subscriptions, etc.  Listen to our conversation and I hope you enjoy Dave and Gunnar’s creative hack of my pic – I don’t get no respect.  ;)

Thanks guys!

D&G podcast #55: Mike Guerette loves developers.


For more information about Red Hat Enterprise Linux and other topics related to this article, visit one of these sites:

Red Hat Enterprise Linux
Red Hat Enterprise Linux Developer Program
Red Hat Enterprise Linux 7 is now generally available

 


Red Hat Developer Toolset now in more RHEL subscriptions


Red Hat has just expanded the number of Red Hat Enterprise Linux subscriptions that include Red Hat Developer Toolset (DTS).

Of note, both the Standard and Premium editions of Red Hat Enterprise Linux Server and Red Hat Enterprise Linux Workstation now include Red Hat Developer Toolset.

Red Hat Developer Toolset is available to customers and partners using Red Hat Enterprise Linux 5 or 6 via the following subscriptions: Continue reading


For more information about Red Hat Software Collections or Red Hat Developer Toolset, visit developer.redhat.com/RHEL.


Savoir-faire Linux video – an interview with Langdon White


Christian Aubry of Red Hat partner and Montreal-based Savoir-faire Linux (savoirfairelinux.com), interviews Red Hat’s Langdon White (PyCon, April 2014) who provides a great introduction (6:31 minutes) of Software Collections, Developer Toolset, and the related connections to Red Hat OpenShift.

 

Merci, Christian!


For more information about Red Hat Software Collections or Red Hat Developer Toolset, visit developer.redhat.com/RHEL.


Which tasks are periodically taking processor time?


When running a latency-sensitive application one might notice that on a regular basis (for example every 5 minutes) there is a delay. The SystemTap periodic.stp script can provide some possible causes of that regular delay. The SystemTap periodic.stp script generates a list of the number of times that various scheduled functions run and the time between each scheduled execution. In the case of delay every five minutes one would run the periodic script for tens of minutes and then look through the output list for a function that has a period of approximately 300,000,00 microseconds (5 minutes*60 seconds*1,000,000 microseconds/second). Continue reading


For more information about Red Hat Enterprise Linux and other topics related to this article, visit one of these sites:

Red Hat Enterprise Linux
Red Hat Enterprise Linux Developer Program
Red Hat Enterprise Linux 7 is now generally available