December 2019
Intermediate to advanced
880 pages
28h 2m
English
Content preview from BPF Performance Tools
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Chapter 9. Disk I/O
Disk I/O is a common source of performance issues because I/O latency to a heavily loaded disk can reach tens of milliseconds or more—orders of magnitude slower than the nanosecond or microsecond speed of CPU and memory operations. Analysis with BPF tools can help find ways to tune or eliminate this disk I/O, leading to some of the largest application performance wins.
The term disk I/O refers to any storage I/O type: rotational magnetic media, flash-based storage, and network storage. These can all be exposed in Linux in the same way, as storage devices, and analyzed using the same tools.
Between an application and a storage device is usually a file system. File systems employ caching, read ahead, buffering, and asynchronous ...
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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.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.