[no crosspost to serdev as I think this is a users' question]
Vaclav Kubart wrote:
it probably highly depends on your OS and kernel.
True.
We had some trouble using posix semaphores on ia32 with a Debian linux and kernel 2.6.18, while the very same seemed to work on an ia64 architecture (not sure which kernel version, but might have been a 2.6.18 as well).
To me,it seems that the performance penalty from fast locking is very small, so this method also qualifies for use in most production environments---depending on the size of the user base, of course.
Regards, Olaf