The Challenges of Parallelization in CPU Development

In the modern world, there are many CPUs available, especially in the cloud. However, optimizing applications to take advantage of multiple cores is necessary. While some algorithms can be parallelized, many areas need improvement to benefit from multiple cores. Underutilization of cores can be a problem. Parallelization has the potential for significant improvement, but it is not as easy as scaling linearly. An example with PG dump demonstrates the limitations of parallelization in certain scenarios. The work to enable parallelization is ongoing, but there are challenges. Partitioning tables can help in some cases.