December 2020
Intermediate to advanced
928 pages
28h 18m
English
Content preview from Systems Performance, 2nd Edition
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Chapter 6
CPUs
CPUs drive all software and are often the first target for systems performance analysis. This chapter explains CPU hardware and software, and shows how CPU usage can be examined in detail to look for performance improvements.
At a high level, system-wide CPU utilization can be monitored, and usage by process or thread can be examined. At a lower level, the code paths within applications and the kernel can be profiled and studied, as well as CPU usage by interrupts. At the lowest level, CPU instruction execution and cycle behavior can be analyzed. Other behaviors can also be investigated, including scheduler latency as tasks wait their turn on CPUs, which degrades performance.
The learning objectives of this chapter are:
Understand ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.