Dynamically allocated new extension shared memory
rkusenet asked what the online.log message 'Dynamically allocated new extension shared memory segment (size 32768KB)' means, as he normally saw 'virtual' segment messages. Robert A. Reissaus explained generally that IDS allocates extra shared memory when needed and advised raising the initial footprint if it is frequent; rkusenet said that missed the question. Madison Pruet said it was an older version of the same message.
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I am seeing this message in online log. What is this 'extension' shared memory.
This is the first time I am seeing it.
09:25:39 Dynamically allocated new extension shared memory segment (size 32768KB)
Ravi
"rkusenet" <rkusenet@sympatico.ca> wrote in message news:<b98frh$gsd9s$1@ID-75254.news.dfncis.de>...
> I am seeing this message in online log. What is this 'extension' shared memory.
> This is the first time I am seeing it.
>
> 09:25:39 Dynamically allocated new extension shared memory segment (size 32768KB)>
> Ravi
IDS uses shared memory to run the engine in. It is usually allocated
at startup, but now and again it may find it doesn't have enough. When
that occurs it simplay allocates more memory in part as defined in the
onconfig. When it no longer needs it, and enough shared memory pages
are free it will release it again. So, nothing to worry about. When it
happensmore frquently You may want to increase the initial footprint
(SHMEM) in you onconfig.
R.A. Reissaus
Risdi, Amsterdam, the Netherlands
IBM/Informix consultants
Informix since 1987.
www.risdi.com
r.a.reissaus@risdi.com
"Robert A. Reissaus" <r.a.reissaus@risdi.com> wrote in message
news:87ad5966.0305061148.180b9eb@posting.google.com...
> "rkusenet" <rkusenet@sympatico.ca> wrote in message
news:<b98frh$gsd9s$1@ID-75254.news.dfncis.de>...
> > I am seeing this message in online log. What is this 'extension' shared memory.
> > This is the first time I am seeing it.
> >
> > 09:25:39 Dynamically allocated new extension shared memory segment (size 32768KB)> >
> > Ravi
>
> IDS uses shared memory to run the engine in. It is usually allocated
> at startup, but now and again it may find it doesn't have enough. When
> that occurs it simplay allocates more memory in part as defined in the
> onconfig. When it no longer needs it, and enough shared memory pages
> are free it will release it again. So, nothing to worry about. When it
> happensmore frquently You may want to increase the initial footprint
> (SHMEM) in you onconfig.
I know this and this is not what I asked. I am asking about extension.
Normally I see these kind of messages in online.log:-
Dynamically allocated new virtual shared memory segment
What is the difference between the above and the following
Dynamically allocated new extension shared memory segment
I think that is an older version of the same message.
"rkusenet" <rkusenet@sympatico.ca> wrote in message
news:b994jf$go9qs$1@ID-75254.news.dfncis.de...
>
> "Robert A. Reissaus" <r.a.reissaus@risdi.com> wrote in message
> news:87ad5966.0305061148.180b9eb@posting.google.com...
> > "rkusenet" <rkusenet@sympatico.ca> wrote in message
> news:<b98frh$gsd9s$1@ID-75254.news.dfncis.de>...
> > > I am seeing this message in online log. What is this 'extension'
shared memory.
> > > This is the first time I am seeing it.
> > >
> > > 09:25:39 Dynamically allocated new extension shared memory segment
(size 32768KB)> > >
> > > Ravi
> >
> > IDS uses shared memory to run the engine in. It is usually allocated
> > at startup, but now and again it may find it doesn't have enough. When
> > that occurs it simplay allocates more memory in part as defined in the
> > onconfig. When it no longer needs it, and enough shared memory pages
> > are free it will release it again. So, nothing to worry about. When it
> > happensmore frquently You may want to increase the initial footprint
> > (SHMEM) in you onconfig.
>
> I know this and this is not what I asked. I am asking about extension.
>
> Normally I see these kind of messages in online.log:-
>
> Dynamically allocated new virtual shared memory segment
>
> What is the difference between the above and the following
>
> Dynamically allocated new extension shared memory segment
>
>
>
>