[infinispan-dev] Infinispan memory

[Nguyễn Hồng Nhựt]

Dear,
I use VisualVN and I got(with testcase 500000 key and every key  has value
is byte array  with length= 1024)
Size: 985,858,048 B~940MB
Used: 627,454,760 B~598MB
Max: 1,073,741,824 B
and * *940MB above is the same as in Ubuntu System monitor.
if the used size above  ~  in memcached. it ok.

thanks galder very much.

2011/3/10 Galder Zamarreño <galder at redhat.com>

> Based on a private response you sent me, you say you got the info from the
> system monitor:
>
> "I use ubuntu and I see the memory column from "System Monitor(in Ubuntu)
> for Infinispan."
>
> This might be misleading cos that might be the memory allocated by the Java
> process, but after garbage collection has occurred, not all of that memory
> might be in use. C apps have no garbage collection, so what you see in the
> system monitor is what you get. So, you should use jvisualvm or similar to
> figure out how much of that allocated memory is actually in use after your
> test.
>
> On Mar 10, 2011, at 9:43 AM, Galder Zamarreño wrote:
>
> > Btw, what parameter are you using to figure out the memory consumption of
> Infinispan after test has finished? In other words, where do you get that
> 58MB and 920MB from?
> >
> > On Mar 10, 2011, at 9:41 AM, Galder Zamarreño wrote:
> >
> >> Hi,
> >>
> >> Although the differences are noticeable, I think it's very hard for a
> Java based app to be able to compete on memory consumption with a C app,
> because the latter provides memory management capabilities that do not exist
> in Java.
> >>
> >> Having said that however, we're currently working on some data stress
> testing with the aim to reduce memory consumption in Infinispan servers.
> >>
> >> One question about your test, I assume that each key is being modified
> once, correct?
> >>
> >> Cheers,
> >>
> >> On Mar 10, 2011, at 5:28 AM, Nguyễn Hồng Nhựt wrote:
> >>
> >>> Hi Infinispan Devs,
> >>> I used memcached all time. I am research Infinispan and make a compare
> with memcached.
> >>> I have just make a memory test between memcached and infinispan to
> choose which one better(best memory saved).
> >>>
> >>> I run Infinispan from command line: ./startServer.sh -r memcached -p
> 4567 ( I am fresh download and run it with no custom any config file)
> >>> and also memcached from command line: /usr/bin/memcached -m 1024 -u
> nobody -p 11211 -l 127.0.0.1
> >>>
> >>> with testcase 10000 key and every key has value is byte array  with
> length= 1024
> >>> Infinispan : => memory: 58MB
> >>> Memcached: => memory: 14MB
> >>>
> >>> with testcase 500000 key and every key  has value is byte array  with
> length= 1024
> >>> Infinispan : => memory: 920MB
> >>> Memcached: => memory: 565MB
> >>>
> >>> In Infinispan, any config param familiar with memory cost? and how i
> can reduce this cost?
> >>>
> >>> thanks and best regards.
> >>>
> >>> _______________________________________________
> >>> infinispan-dev mailing list
> >>> infinispan-dev at lists.jboss.org
> >>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
> >>
> >> --
> >> Galder Zamarreño
> >> Sr. Software Engineer
> >> Infinispan, JBoss Cache
> >>
> >>
> >> _______________________________________________
> >> infinispan-dev mailing list
> >> infinispan-dev at lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/infinispan-dev
> >
> > --
> > Galder Zamarreño
> > Sr. Software Engineer
> > Infinispan, JBoss Cache
> >
> >
> > _______________________________________________
> > infinispan-dev mailing list
> > infinispan-dev at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
> --
> Galder Zamarreño
> Sr. Software Engineer
> Infinispan, JBoss Cache
>
>
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev
>
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