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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Keep in mind that there is, in general, a scheduler tradeoff between latency and throughput.
So, if you're doing audio recording and mixing, this is likely to have very different scheduler requirements than something churning through batch jobs. The former wants low latency, the latter high throughput.
It is part of their kernel. And there are a few different schedulers at play, you have the CPU one as well as the I/O one. Arch Linux has various different kernels (such as the zen one) that use different CPU schedulers (with lots of options in the AUR as well) and there are various settings you can tweak for different I/O ones.
I general you should go through the Improving performance wiki page on the details for these and even more performance tweaks you can do.
There is also pages for tuning things for better battery life for laptops as well that you may also find interesting.
Arch wiki to the rescue. I swear the forms of arch Linux must just be riddled with references to the wiki. Eventually I'll learn that it just knows. Thanks for the response.