On 8 Jan 2003, Paul Millar <[EMAIL PROTECTED]> wrote: > Hi Martin, > > On a similar note, I've been investigating OpenMOSIX on and off (mostly > off) for doing distributed compiling. In general, I've found it not > particularly stable (although its improving) and the performance not > particularly great -- although I've not had time to investigate the causes > of these problems. Besides, compiling code is quite a tricky task for it > to schedule/migrate.
I haven't tried it myself but I would have expected the short, intense jobs generated by compilation to be a problem. > A reduction in compilation time by a factor of 2.6 (for three machines) > isn't bad at all! > > If you have the time, could you repeat this with different values for the > -j option? Timing how long it takes with -j2 (and perhaps -j3 and -j4) > would be interesting. Yes, I've been meaning to add that to the benchmark tool. I'll let you know. > Also, repeat the compilation several times for each value of -j and taking > the mean and standard deviation would be interesting too. In informal measurements it seems to be quite reproducible. The sd is typically only a few percent of the overall time. But that might be an interesting option to add too. -- Martin
