[infinispan-dev] Infinispan memory

[Patrick McFarland]

On Thu, Mar 10, 2011 at 4:38 AM, Nguyễn Hồng Nhựt
<nhutnguyenhong at gmail.com> wrote:
> 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

In other words, its really using 598MB, and is perfectly in line with
what memcached uses. I see no issue here.

> 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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>



-- 
Patrick "Diablo-D3" McFarland || www.AdTerrasPerAspera.com
"Computer games don't affect kids; I mean if Pac-Man affected us as kids, we'd
all be running around in darkened rooms, munching magic pills and listening to
repetitive electronic music." -- Kristian Wilson, Nintendo, Inc, 1989