Eden generation utilization doing zig zag movement in range of 2 Gbs

Hi,
I'm running an application where the app produces approximately 15 MB of data per second, but the heap memory utilization in CMS Eden space shows zig zag movement ranging from 100 MB to 2.5 GB for a period of 15 seconds or so. In other words, if my app generates data in range of few MBs then how come the young generation space utilization(in Jconsole) can grow in GBs in such a short span of time?
Any insight will be helpful.
Thanks,
Ashish

801023 wrote:
Hi,
I'm running an application where the app produces approximately 15 MB of data per secondHow did you measure/calculate that value?
, but the heap memory utilization in CMS Eden space shows zig zag movement ranging from 100 MB to 2.5 GB for a period of 15 seconds or so.Which would come down to about 160MB of objects per second. How do you generate the 15MB and what makes you sure that nothing more is generated?
In other words, if my app generates data in range of few MBs then how come the young generation space utilization(in Jconsole) can grow in GBs in such a short span of time?Creating temporary objects that get garbage collected quickly can lead to this behaviour (and it's precisely what Eden Space is designed to handle).
Why do you think that's a problem, by the way?

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