Walter Bright Wrote: > Andrei Alexandrescu wrote: > > 2. The global random generator will be allocated per thread. Are you > > cool with this too? > > That could have speed problems with a tight loop accessing thread local > storage. If it's a shared global with no locking, the thread randomness > will increase its randomness <g>.
Lately, I wonder why TLS is treated as special and globals are normal. I don't know enough about threading models on various platforms to fully understand the implications. I've already been tempted to move some of my multi-threaded D code to multi-process for the benefits it offers (mostly efficient garbage collection when scaling to 8+ threads. My use of shared memory is minimal and easily eliminated. > > 3. How should the global rng be initialized? To always generate the same > > sequence, or not? > > Always different, because that's what I want if I just want a freakin' > random number!
