[ILUG] SHM problem with Oracle
Niall O Broin
niall at magicgoeshere.com
Tue Jan 29 14:27:08 GMT 2002
On Tue, Jan 29, 2002 at 10:06:00AM -0400, Shirley Louise Coffie wrote:
> What I'm having problems with is setting the memory. I don't seem to get
> complaints from the system for icps. I guess where I'm getting hung up is
> setting the SHMMAX, SHMMIN, SHMMNI, SHMSEG, SEMMNI, SEMMSL, SEMMNS, SEMOPM,
> and SEMVMX
> >From what I can see the total allowable shared memory is determined by the
> SHMMAX * SHMSEG
> But this doesn't seem to make any sense.
In what way does this not make sense ?
Amount of beer = bottle capacity X number of bottles
SHMSEG = size of a shared memory segment (bottle capacity)
SMHMAX = maximum number of shared memory segments (number of bottles)
Google is your friend, and will definitely give you less abuse than we will :-)
Searcing Google for "oracle linux shared memory" got 27600 pages and the
first of these was quite informative, even telling you about how to rebuild
a bit of Oracle for maximum performance. Oracle's like a Formula 1 racing car
- very expensive, very good at what it does, best not serviced by a back
street garage, and quite likely to crash and burn if not driven correctly.
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