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But isn't the very reason you bother with parallelism that you need higher performance? What possible other reason could there be?
by lutorm 17y ago
But isn't the very reason you bother with parallelism that you need higher performance? What possible other reason could there be?
- aaronblohowiak 17y agoScalability
- joe_the_user 17y agoThe raw increase performance increase that you can get from parallel processing is at the absolute maximum proportionate to the number of processors you can add to your program. Usually it is much less. A raw performance increase is not the most common good reason for concurrency, for multiple threads or processes in an application though it's a common bad reason. Achieving a decrease in latency is one common good reason to for concurrency on a single machine.
- a-priori 17y agoBeing able to do processing and I/O in parallel is another source of speedup from concurrency on a single processor.