Re: POSIX.1 semaphores vs message queues

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Mon, Nov 09, 2015 at 08:05:43AM +0800, Paul Goyette wrote:
> Well, both EXEC_SCRIPT and COREDUMP are modularized, and they _are_
> optional.

See part about modularity masturbation. Making things optional for the
sake of making them optional is just as wrong.

> Both EXEC_SCRIPT and COREDUMP are also much smaller than the ksem code;
> these two optional/removeable modules together add up to just about
> the size of a SEMAPHORE module.  (On amd64 we have exec_script weighing
> in at 1285 bytes and coredump at 3895 bytes, while ksem tips the scales
> at 5186 bytes).  There are numerous other modules which are similar in
> size to the SEMAPHORE module.

Add in the page alignment and the cost becomes even larger. There is
nothing to be gained.

Joerg