The default Linux scheduling configuration divides CPU time on a per process basis. If a system accepts multiple interactive users, that is not the desired situation since a user that is running many processes will have a larger CPU share than the others. […] Once up on a time there was a kernel option called FAIR_USER_SCHED that divided the CPU time slices on a per user basis. […] Eventually it got removed because its existence meant a lot of code to maintain. As a result, each google search about “fair share user scheduling” brings now up old discussion threads and college homework assignments. But as this option was removed a hot replacement called cgroups was ready to rock… well, sort of….
Web Webster has more than 20 years of writing and editorial experience in the tech sector. He’s written and edited news, demand generation, user-focused, and thought leadership content for business software solutions, consumer tech, and Linux Today, he edits and writes for a portfolio of tech industry news and analysis websites including webopedia.com, and DatabaseJournal.com.
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