April 2023
Intermediate to advanced
328 pages
8h 31m
English
Content preview from Troubleshooting JavaBecome 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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11 Finding memory-related issues in an app’s execution
This chapter covers
- Sampling an execution to find memory allocation issues
- Profiling a part of the code to identify the root causes of memory allocation problems
- Obtaining and reading heap dumps
Every app processes data, and to do this, the app needs to store that data somewhere while working with it. The app allocates part of the system’s memory to work with the data, but the memory isn’t an infinite resource. All the apps running on a system share a finite amount of memory space that the system provides. If an app doesn’t wisely manage its allocated memory, it can run out of it, making it impossible to continue its work. Even if the app doesn’t run out of memory, using too much can make ...
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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.