an_r_dur...@homedepot.com> wrote:
>>>
>>> I don’t disagree with Jon, who has all kinds of performance tuning
>>> experience. But for ease of operation, we only use G1GC (on Java 8),
>>> because the tuning of ParNew+CMS requires a high d
ospel truth that -XX:+UseNUMA is a good
>> thing on AWS (or anything virtualized), you’d have to run your own tests
>> and find out.
>>
>>
>>
>> R
>>
>> *From: *Jon Haddad
>> *Reply-To: *"user@cassandra.apache.org"
>> *Date: *Mo
ser@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Subject: Re: [EXTERNAL] Re: GC Tuning
https://thelastpickle.com/blog/2018/04/11/gc-tuning.html<https://urldefense.proofpoint.com/v2/url?u=https-3A__thelastpickle.com_blog_2018_04_11_gc-2Dtuning.html&d=DwMFaQ&am
>
> R
>
> *From: *Jon Haddad
> *Reply-To: *"user@cassandra.apache.org"
> *Date: *Monday, October 21, 2019 at 12:06 PM
> *To: *"user@cassandra.apache.org"
> *Subject: *Re: [EXTERNAL] Re: GC Tuning
> https://thelastpickle.com/blog/2018/04/11/gc-tuning.htm
pend on
your usage patterns.
From: Sergio mailto:lapostadiser...@gmail.com>>
Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Date: Sunday, October 20, 2019 at 2:51 PM
To: "user@cassandra.apache.org<mailto:us
> Sean Durity
>
>
>
> *From:* Jon Haddad
> *Sent:* Monday, October 21, 2019 10:43 AM
> *To:* user@cassandra.apache.org
> *Subject:* [EXTERNAL] Re: GC Tuning
> https://thelastpickle.com/blog/2018/04/11/gc-tuning.html
>
>
>
> I still use ParNew + CMS over G1GC with Ja
: [EXTERNAL] Re: GC Tuning
https://thelastpickle.com/blog/2018/04/11/gc-tuning.html
I still use ParNew + CMS over G1GC with Java 8. I haven't done a comparison
with JDK 11 yet, so I'm not sure if it's any better. I've heard it is, but I
like to verify first. The pause times w
old-gen collections. There are no magic numbers to just give because it’ll
> depend on your usage patterns.
>
>
>
> *From: *Sergio
> *Reply-To: *"user@cassandra.apache.org"
> *Date: *Sunday, October 20, 2019 at 2:51 PM
> *To: *"user@cassandra.apache.org&quo
;user@cassandra.apache.org"
Date: Sunday, October 20, 2019 at 2:51 PM
To: "user@cassandra.apache.org"
Subject: Re: GC Tuning https://thelastpickle.com/blog/2018/04/11/gc-tuning.html
Message from External Sender
Thanks for the answer.
This is the JVM version that I have right now.
openjd
Thanks for the answer.
This is the JVM version that I have right now.
openjdk version "1.8.0_161"
OpenJDK Runtime Environment (build 1.8.0_161-b14)
OpenJDK 64-Bit Server VM (build 25.161-b14, mixed mode)
These are the current flags. Would you change anything in a i3x.large aws
node?
java -Xlogg
"It depends" on your version and heap size but G1 is easier to get right so
probably wanna stick with that unless you are using small heaps or really
interested in tuning it (likely for massively smaller gains then tuning
your data model). There is no GC algo that is strictly better than others
in
Hello!
Is it still better to use ParNew + CMS Is it still better than G1GC these days?
Any recommendation for i3.xlarge nodes read-heavy workload?
Thanks,
Sergio
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