Multiprocessor systems are mainstream these days. From the desktop to the datacenter, systems with more than one processor are used for everything from high-end desktop applications to large datacenter backends. This month, Jim takes a brief look at the multiprocessor systems architectures in use today, including the shared memory multiprocessor architecture, Sun's choice for its multiprocessor systems. His discussion will provide a solid background for a segue into the locking primitives used by the Solaris kernel to facilitate multiprocessor platform support.
The standard Perl distribution comes with a debugger, although it's really just another Perl program, perl5db.pl. Since it is just a program, I can use it as the basis for writing my own debuggers to suit my needs, or I can use the interface perl5db.pl provides to configure its actions. That's just the beginning, though. read more...
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