October 2013
Intermediate to advanced
784 pages
21h 7m
English
Content preview from Systems Performance: Enterprise and the CloudBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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3. Operating Systems
An understanding of the operating system and its kernel is essential for systems performance analysis. You will frequently need to develop and then test hypotheses about system behavior, such as how system calls are being performed, how CPUs are scheduling threads, how limited memory could be affecting performance, or how a file system processes I/O. These behaviors will require you to apply your knowledge of the operating system and the kernel.
This chapter provides an overview of operating systems and the kernel and is assumed knowledge for the rest of the book. If you missed operating systems class, you can treat this as a crash course. Keep an eye out for any gaps in your knowledge, as there will be an exam at the end ...
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