git.net

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Java 11 Z garbage collector


Advertised, yes, but so far I haven't found it to be any better than
ParNew + CMS or G1 in the performance tests I did when writing
http://thelastpickle.com/blog/2018/08/16/java11.html.

That said, I didn't try it with a huge heap (i think it was 16 or 24GB), so
maybe it'll do better if I throw 50 GB RAM at it.



On Thu, Aug 30, 2018 at 8:42 AM Carl Mueller
<carl.mueller@xxxxxxxxxxxxxxx.invalid> wrote:

> https://www.opsian.com/blog/javas-new-zgc-is-very-exciting/
>
> .. max of 4ms for stop the world, large terabyte heaps, seems promising.
>
> Will this be a major boon to cassandra p99 times? Anyone know the aspects
> of cassandra that cause the most churn and lead to StopTheWorld GC? I was
> under the impression that bloom filters, caches, etc are statically
> allocated at startup.
>


-- 
Jon Haddad
http://www.rustyrazorblade.com
twitter: rustyrazorblade