Parallelize build process during CI

[madolson]

When building the process, we can use multiple cores with -j. See

valkey/.github/workflows/ci.yml

Line 20 in dcac3e1

run: make all-with-unit-tests SERVER_CFLAGS='-Werror' BUILD_TLS=yes

.

We can hardcode it based off the known number of cores based off of the runner, we could also look into dynamically discovering the number of cores.

[zuiderkwast]

Hard-coding it to -j4 should be a good start. @pizhenwei mentioned the CI runners have 4 cores.

[madolson]

Hard-coding it to -j4 should be a good start. @pizhenwei mentioned the CI runners have 4 cores.

MacOS have 3 or 4 cores. Also, I thought linux had 4, but the official documentation says 2. https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners

[Shivshankar-Reddy]

There are 2 section in the documenation: for public repositories, linux has 4 and private its 2. As valkey is public repo so linux should have 4.

public repo: https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories

private repo: https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for--private-repositories

[Shivshankar-Reddy]

I can create a PR for hard coding it.