© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
M. KalinModern C Up and Runninghttps://doi.org/10.1007/978-1-4842-8676-0_7

7. Concurrency and Parallelism

Martin Kalin1  
Chicago, IL, USA

7.1 Overview

A concurrent program handles more than one task at a time. A familiar example is a web server that handles multiple client requests at the same time. Although concurrent programs can run even on a single-processor machine of bygone days, these programs should show a marked gain in performance by running on a multiprocessor machine: different tasks can be delegated to different processors. A parallel program in this sense is a concurrent program whose tasks can be handled literally at the same time because ...

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