[fpc-devel] Re: Multi threading support

["Vinzent Höfler"]

-------- Original-Nachricht --------
> Von: Michael Schnell <mschnell at lumino.de>
> 
> > OTOH, it's looks about the same as in Java and even Java now has
> explicit Locks, because "synchronized" simply isn't efficient 
> I suppose if using Futex (in Linux) or an implementation of a user space 
> Mutex in the RTL (using a bus locked read-modify write instruction and 
> do a system call only when the resource is taken by another thread) 
> needs close to no CPU time.

Yes, but often the question is not how long the *locking* operation takes, but rather how long the *locked* operation takes.


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