PRT memory usage

Thomas Schatzl thomas.schatzl at oracle.com
Wed Aug 23 17:41:12 UTC 2017


Hi,

On Wed, 2017-08-23 at 09:05 -0700, yu.zhang at oracle.com wrote:
> If you are using jdk8, try -XX:+PrintHeapAtGC

  and -XX:+PrintHeapAtGCExtended if you really want extensive per-
region information (at every GC).

I do not think there is a switch that prints per-region type summary
information in JDK8. -XX:PrintHeapAtGC only prints number of regions
for eden and survivor iirc.

Thomas

> 
> On 08/23/2017 04:01 AM, Milan Mimica wrote:
> > pon, 21. kol 2017. u 18:42 Thomas Schatzl <thomas.schatzl at oracle.co
> > m> wrote:
> > > 
> > > -Xlog:gc+heap=info gives you the following kind of output:
> > > 
> > Unrecognized option: -Xlog:gc+heap=info 
> > Must be something else.
> > 
> > 
> > 
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>  
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