G1GC : Can we use this GC for low heap size

[mohd shaban]

Hi Bernd ,

Sure will upload the GC log file.

Thanks,
Mohd Shaban

On Sun, Dec 15, 2019 at 4:27 PM Bernd Eckenfels <ecki at zusammenkunft.net>
wrote:

> Hello,
>
> Well its hard to say without knowing the application details and having
> seen the Gc log. But there is not much you can do besides making the used
> memory smaller or the heap bigger.
>
> If you upload your gc Logfiles to gceasy and tell site to generate a
> shareable link you could post it here so we can get some more details to
> work with.
>
> https://gceasy.io
>
> Gruss
> Bernd
> --
> http://bernd.eckenfels.net
>
> ------------------------------
> *Von:* mohd shaban <mohdshaban000123 at gmail.com>
> *Gesendet:* Sonntag, Dezember 15, 2019 11:52 AM
> *An:* Bernd Eckenfels
> *Cc:* hotspot-gc-use at openjdk.java.net
> *Betreff:* Re: G1GC : Can we use this GC for low heap size
>
> Hi Bernd,
>
> I have verified there is no memory leak but we are getting this error.
> Can you suggest how to fix this issue without increasing the size ?
>
> Thanks,
> Mohd Shaban
>
>
> On Sun, Dec 15, 2019 at 4:09 PM Bernd Eckenfels <ecki at zusammenkunft.net>
> wrote:
>
>> Hello,
>>
>> If you get overhead exceeded with default collector (I assume Java 8
>> Server class aka parallel collector) and small heaps you have a sizing or
>> leak problem, G1 won’t help you there (it might actually make it worse).
>>
>> Having said that, G1 can also be used for smaller heaps (as can be seen
>> by it beeing default for java9+) but it isn’t that useful, as most of the
>> GC activity should happen with stop the world new collections anyway.
>> ParallelGC with small heaps is the easiest to use IMHO.
>>
>> Gruß
>> Bernd
>>
>> --
>> https://Bernd.eckenfels.net
>>
>> ------------------------------
>> *Von:* hotspot-gc-use <hotspot-gc-use-bounces at openjdk.java.net> im
>> Auftrag von mohd shaban <mohdshaban000123 at gmail.com>
>> *Gesendet:* Sonntag, Dezember 15, 2019 11:09 AM
>> *An:* hotspot-gc-use at openjdk.java.net
>> *Betreff:* G1GC : Can we use this GC for low heap size
>>
>> Hi Team,
>>
>> We need help regarding G1GC Algorithm , can we use this GC for low heap
>> size around 1GB or this is only for big heap size.
>>
>> We want to use this GC because we are getting *"GC overhead limit
>> exceeds"* and application using the default GC collector
>>
>> Thanks,
>> Mohd Shaban
>> _______________________________________________
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>> hotspot-gc-use at openjdk.java.net
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>>
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