1155135
submission
serviscope_minor writes:
It has already been established in a previous article that bringing down an aircraft with liquid explosives mixed on a pllane would be very difficult. The men accused of the plot werer brought to trial and a verdict has now been reached. There was not enough evidence to convice any of them of targeting a plane. So apparently, there was not much evidence of a plot that could not have worked anyway.
239197
submission
serviscope_minor writes:
It should be well known to any developer that you should only optimize parts of a program which need optimizing. And the way to find those parts is through profiling. This simplifies one point: profiling is difficult. The obvious way is to enable profiling in the compiler and use gprof, but this has problems. Firstly there is no point in profiling a program without turning on -O3 (or which ever), since this can change the results dramatically. Secondly, -O3 will inline functions which can ruin profiling results by making them far too coarse. Even if it doesn't do this, there is no way of determining which part of a function is taking up all the time.
So that brings me to my question: does anyone know of profiling tools which do not suffer from these problems? My platform is C++ (using g++) on Linux.
151305
submission
serviscope_minor writes:
You heard earlier today that Dell will be shipping Ubuntu on selected models. Naturally, this is interesting to slashdotters. However, the interest generated by a wider audience will ultimately be more important. Well, apparently, this is the 3rd most popuar topic on the BBC at the moment. So apparently this is interesting to a general audience. I believe that this bodes very well for the future.