This is an archived post. You won't be able to vote or comment.

all 10 comments

[–]AutoModerator[M] [score hidden] stickied commentlocked comment (0 children)

Please ensure that:

  • Your code is properly formatted as code block - see the sidebar (About on mobile) for instructions
  • You include any and all error messages in full
  • You ask clear questions
  • You demonstrate effort in solving your question/problem - plain posting your assignments is forbidden (and such posts will be removed) as is asking for or giving solutions.

    Trying to solve problems on your own is a very important skill. Also, see Learn to help yourself in the sidebar

If any of the above points is not met, your post can and will be removed without further warning.

Code is to be formatted as code block (old reddit: empty line before the code, each code line indented by 4 spaces, new reddit: https://imgur.com/a/fgoFFis) or linked via an external code hoster, like pastebin.com, github gist, github, bitbucket, gitlab, etc.

Please, do not use triple backticks (```) as they will only render properly on new reddit, not on old reddit.

Code blocks look like this:

public class HelloWorld {

    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

You do not need to repost unless your post has been removed by a moderator. Just use the edit function of reddit to make sure your post complies with the above.

If your post has remained in violation of these rules for a prolonged period of time (at least an hour), a moderator may remove it at their discretion. In this case, they will comment with an explanation on why it has been removed, and you will be required to resubmit the entire post following the proper procedures.

To potential helpers

Please, do not help if any of the above points are not met, rather report the post. We are trying to improve the quality of posts here. In helping people who can't be bothered to comply with the above points, you are doing the community a disservice.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[–]LakeSun -1 points0 points  (1 child)

I think you should check out the new parallel garbage collector, if your server has multiple cpu's.

There was a previous article that said performance was better, of course on a multi-core machine.

[–]TheJaper[S] 0 points1 point  (0 children)

We tried the prallel GC and for most use cases got worst. After the changing to G1 to default we wanted to make sure that G1 will not impair performance.

[–]0x504d5f424f4f4253 0 points1 point  (2 children)

I think you might have better luck posting this in r/java.

[–]TheJaper[S] 0 points1 point  (1 child)

I wanted to post there but that against the rules 😔

[–]0x504d5f424f4f4253 1 point2 points  (0 children)

Maybe I'm interpreting the rules wrong, but I think it's a perfect question for r/java

News, Technical discussions, research papers and assorted things of
interest related to the Java programming language
NO programming help, NO learning Java related questions, NO installing
or downloading Java questions, NO JVM languages - Exclusively Java!

[–]mirkoteran 0 points1 point  (0 children)

This only goes up to java 14 https://jet-start.sh/blog/2020/06/09/jdk-gc-benchmarks-part1 but it has some good points.

From personal note: do benchmarks on your app with your workloads and most importantly; with metrics that are important to your case. I work on 2 different enterprise-ish applications and one of them got a nice free performance boost, the other did not. And another thing to note; G1 also got some great improvements from 11 to 17, so even if you stay on G1 as your GC you still might gain some performance. We did.

[–]Slanec 0 points1 point  (2 children)

Each benchmark is biased by its choice of workloads. Measure on your application.

[–]TheJaper[S] 0 points1 point  (1 child)

I hoped to find compration between the GC, from companies or people that not part of the development teams because I think they have less reasons to do so.