On Friday 25 April 2008, Shane Volpe wrote: > Thank you both for the feedback. I will take notes through out my > effort clean them up and post them along with any patches that I have > had to add. > > quote: > >> I think longterm there needs to be a max static (flash) and max > >> dynamic (RAM) arguments that you can set somewhere in ltp > > I was a little hasty to make the above statement. When I sent you > that email, I had spent several days trying to get ltp to work and > would fix one memory test only to have ltp fail again with an OOM > several tests later . Now that I'm further along and have a better > perspective on what really is involved with getting ltp working on an > embedded system I realize the OOM issues really are isolated to a > handful of tests. > > I think that if the few tests that use large memory and don't > currently contain an input argument to limit it are patched and that > somewhere there is good documentation (wiki probably) on how to > configure ltp to work nicely on a small memory (embedded) system > everyone will be happy. > > I guess the tests that use considerable amounts of memory could also > just be re-written to detect the system RAM making sure to only use > some percentage of it, if the memory limit makes the test useless then > it should return some message stating that. I will look at the tests > I have had issues with and see if this is an easy thing to implement.
command line arguments would certainly be desirable in the edge cases, but i wonder if we should introduce some environment variables and have the default memory settings key off of those. that way people who run LTP wholesale (via the provided scripts or whatever) rather than 1 test at a time by hand dont have to modify things. of course, such an approach would need to start with a high level document that documents the common memory flags and settings to provide cohesion in the first place. -mike
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