June 2018
Intermediate to advanced
408 pages
11h 23m
English
book
Hands-On High Performance with Spring 5
by Chintan Mehta, Subhash Shah, Pritesh Shah, Prashant Goswami, Dinesh Radadiya
Content preview from Hands-On High Performance with Spring 5
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Tools to analyze GC logs
The Java GC logs are one of the places where we can start debugging an application in the event of a performance issue. The GC logs provide important information, such as:
- The last time the GC ran
- The number of GC cycles run
- The interval at which the GC ran
- The amount of memory freed up after the GC ran
- The time the GC took to run
- The amount of time for which the JVM paused when the garbage collector ran
- The amount of memory allocated to each generation
The following is the sample GC logs:
2018-05-09T14:02:17.676+0530: 0.315: Total time for which application threads were stopped: 0.0001783 seconds, Stopping threads took: 0.0000239 seconds2018-05-09T14:02:17.964+0530: 0.603: Application time: 0.2881052 seconds..... ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.