Memory used - what is "Other memory"?

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bughunter@ru - 19 Apr 2005 07:12 GMT

Very interesting for me

[...]
Lock Manager Heap is of size 16809984 bytes
Database Heap is of size 9273344 bytes
Database Monitor Heap is of size 5226496 bytes
Other Memory is of size 729202688 bytes
FCMBP Heap is of size 4997120 bytes
Total: 1889337344 bytes

"Other memory" size 40%(!!!). How resolve this memory leak?

Andy

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JS - 20 Apr 2005 15:32 GMT

> Very interesting for me
>
[quoted text clipped - 9 lines]
>
> Andy

Yes, we faced similar problem trying to understand this and finally
what you have to do is configure APPGROUP_MEM_SZ for the database,
this is where part of the 'other memory' is comuing from

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bughunter@ru - 21 Apr 2005 06:30 GMT

Yes, we have appgroup_mem_sz=30000 *4K = 120 Mb max, is't correct?
Inside snapshot I see

Application Group Shared Heap is of size 99631104 bytes

and this memory ~98Mb calculated in result string. But other memory
size - 730Mb!

Andy
2IBM: ???

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JS - 21 Apr 2005 14:38 GMT

> Yes, we have appgroup_mem_sz=30000 *4K = 120 Mb max, is't correct?
> Inside snapshot I see
[quoted text clipped - 6 lines]
> Andy
> 2IBM: ???

The value is 'correct' depending upon how many applications you have
connected to the database, the value is configured in conjunction with
GROUPHEAP_RATIO and APP_CTL_HEAP_SZ. What these values do is control
how many applications can 'fit' into one memory group, once one memory
group is 'filled up', another memory group is allocated, hence you
have lots of memory allocated if your groups are configured too small.

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Erik Hendrix - 28 Apr 2005 09:35 GMT

Haven't been completly following this, but is the database memory set to
automatic? If so it will allocate more then what is configured and this
might be the "Other Memory" you are seeing.

> Yes, we have appgroup_mem_sz=30000 *4K = 120 Mb max, is't correct?
> Inside snapshot I see
[quoted text clipped - 6 lines]
> Andy
> 2IBM: ???

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bughunter@ru - 29 Apr 2005 13:34 GMT

all automatic disabled.

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