Hi Angela, As Philip pointed out, TinyOS doesn't know about processes or kernel-mode operation in the traditional sense. It sounds as if you wanted to do profiling, like how much time is spent to perform a given operation and how much of this time is taken by core TinyOS functions, etc.
Including support for profiling measurements would take a significant part of the processing power on a typical TinyOS-capable device, so nobody really wants to include such things directly in TinyOS and measure it in hardware. The exception is if you just need to know the characteristics of a very particular operation. In this case you could toggle a pin on the micro-controller just before starting the operation, and then toggle the pin again when the operation finishes. Then you could measure the timing of the operation with an oscilloscope. TinyOS 1.x has a means of simulating power consumption. I don't know how they do it, but maybe their mechanisms could be used to estimate time-based profiling information as well. A post on a different thread recently mentioned the Avrora project. It looks like it is a hardware simulator and the porject web-page mentions profiling. http://compilers.cs.ucla.edu/avrora/ If you think that the behavior of your program will change over time (for instance depending on the network configuration), once you know the cost of operations (for instance estimated with the TinyOS 1.x power consumption simulation or the Avrora project) you could get runtime estimates of the distribution of processing power by counting the number of executions of key operations. This would be much cheaper (in terms of processing overhead) than actually measure execution times. Cheers, Urs Angela Perez schrieb: > HI Guys, > > Just wondering if anybody knows any TOS tools that would show information > about processes running inside a mote (something like top, vmstat, > etc...although over-simplified) > Eg. would be useful to know how much cpu/memory in user mode and how much is > taken by TOS kernel (timers, scheduler, etc). > Even something low-level like instructions per second would be useful I > think....Maybe there is a way to get this info , if anybody knows any > process info tricks, please share! :-) > > Thanks > Angela. _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
