How do servlets work? Instantiation, sessions,
shared variables and Multithreading.
I firmly believe that the Multithreading paradigm offered by PMOS/2 makes programming
a lot easier.
Race conditions also occur in software which supports Multithreading, use a distributed environment or are interdependent on shared resources.
Multithreading requires careful programming since threads share
data strucures that should only be modified by one thread at a time.
It features eight cores and has a 12-wide issue architecture, Multithreading enhancements, and new instructions to take advantage of parallelism,
especially in virtualization.
New information presents improvements in Multithreading, resiliency improvements(Intel Instruction Replay RAS)
and few new instructions thread priority, integer instruction, cache prefetching, and data access hints.
Benefit of Multithreading is that it utilizes same memory
and other resources to execute multiple threads at the same time, like While typing, grammatical errors are checked along.
I still use quite a lot of singletons, especially for factory classes,
and while you have to be a bit careful about Multithreading issues(like any class actually),
I fail to see why they are so awful.