cocoon-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Todd Densmore <TDensm...@witness.com>
Subject RE: [FYI] heapprofile analysis
Date Tue, 18 Mar 2003 23:52:22 GMT
my bet? Maybe char Arrays allocated during transforms? I ran some OptimizeIt
profiles awhile back and seem to remember these numbers creeping up,
especially during the i18n transformation.

-----Original Message-----
From: Stefano Mazzocchi [mailto:stefano@apache.org]
Sent: Tuesday, March 18, 2003 6:03 PM
To: cocoon-dev@xml.apache.org
Subject: Re: [FYI] heapprofile analysis


Pier Fumagalli wrote:
> On 18/3/03 21:00, "Stefano Mazzocchi" <stefano@apache.org> wrote:
> 
> 
>>I assume, but I'm not sure, that [xx are native internal objects, so
>>there is not much we can do about those. Still, I would like to know
>>what is that [10 object that accounts for so much memory.
> 
> 
> They should be (might be) arrays... As that's the way in which you define
> them in JNI (roughly).... And the number after that _should_ (but I ain't
> sure) the type of array that you're actually looking at. Should be one of:
> 
> #define JVMPI_NORMAL_OBJECT              ((jint)0)
> #define JVMPI_CLASS                      ((jint)2)
> #define JVMPI_BOOLEAN                    ((jint)4)
> #define JVMPI_CHAR                       ((jint)5)
> #define JVMPI_FLOAT                      ((jint)6)
> #define JVMPI_DOUBLE                     ((jint)7)
> #define JVMPI_BYTE                       ((jint)8)
> #define JVMPI_SHORT                      ((jint)9)
> #define JVMPI_INT                        ((jint)10)
> #define JVMPI_LONG                       ((jint)11)
> 
> You never _never_ have access to the JVM internal objects from any
> whatsoever possible pre-defined interface... And I tried... :-)

Ah, gotcha.

So, the question becomes: what allocates 500Kb of int arrays?


Stefano.

Mime
View raw message