Hi All,

I have an application which contains several C++ modules which run as Linux daemons, and communicate to each other via IPC (specifically, message queues).

For now, the only tool that I know to get useful statistics information about message queues (or other IPCs as well) is "ipcs" command, which lists all active IPC mechanisms in the system.

Is there any free/commercial tool that is capable of providing information about, for example, the number of messages written/read to/from a specific queue per second on a real-time basis, a history info about the messages sent/received, etc ? (To summarize, I want to know exactly what is happening)

I am eager to hear about any tool (if any) that works for other IPC mechanisms as well (shared memories, etc).

I use Ubuntu by the way.

Thanks.

you can try using 'ddd' command.

For realtime performance analysis, a more advanced tool 'ltt' known as 'linux trace tool' needs to be used.

If I am not wrong, 'ddd' is a graphical front-end for gdb, which is not what I am looking for.

Does 'ltt' provide real-time info about local IPCs ?

yes, ltt can provide real-time info about running IPCs. From the wikipedia, http://en.wikipedia.org/wiki/Linux_Trace_Toolkit

The Linux Trace Toolkit (LTT) is a set of tools that is designed to log program execution details from a patched Linux kernel and then perform various analyses on them, using console-based and graphical tools. LTT allows the user to see in-depth information about the processes that were running during the trace period, including when context switches occurred, how long the processes were blocked for, and how much time the processes spent executing vs. how much time the processes were blocked. The data is logged to a text file and various console-based and graphical (GTK+) tools are provided for interpreting that data.