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тАО08-13-2001 12:52 PM
тАО08-13-2001 12:52 PM
RAM per user
Some body know the requirement of ram per each user, using Oracle 8.1.7 ?
The old calculation was:
Oracle(up to 1.5MB/user x number of user)
The old calculation was:
Oracle(up to 1.5MB/user x number of user)
The time is gold
3 REPLIES 3
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тАО08-13-2001 09:03 PM
тАО08-13-2001 09:03 PM
Re: RAM per user
Issac, cram as much RAM into that machine as you can afford. First bank HP foor support reasons, the rest high quality 3rd party memory, such as Strategic Memory Solutions .
RAM is the cheapest performance enhancer you can buy, more so than CPU or disk or SCSI channels. You can't have too much.
RAM is the cheapest performance enhancer you can buy, more so than CPU or disk or SCSI channels. You can't have too much.
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тАО08-15-2001 05:21 AM
тАО08-15-2001 05:21 AM
Re: RAM per user
Isaac, I would say that it depended on what your application did, and how many memory structures - pl/sql tables, etc. you have and how you use them.
I tend to use two sources :
The oracle DBA tables v$sesstat, v$statname and v$session, can give you a good indication of what Oracle thinks its using.
Alternatively, you could look at analysing a couple of dedicated server processes (oracle), from a HPUX perspective, to say how much they are actually, using. (NB. When looking at this you need to take into consideration the amount of memory taken up by the Oracle application itself. There is a tech note on metalink, but I think you basically subtract the figure given from :
size oracle
from the memory reported per process.
I tend to use two sources :
The oracle DBA tables v$sesstat, v$statname and v$session, can give you a good indication of what Oracle thinks its using.
Alternatively, you could look at analysing a couple of dedicated server processes (oracle
size oracle
from the memory reported per process.
If at first you do not succeed. Destroy all evidence that you even attempted.
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тАО08-16-2001 03:25 AM
тАО08-16-2001 03:25 AM
Re: RAM per user
Steve is correct, memory usage can vary a lot
depending on application code.
It is not uncommon to see 20megs per user
or even more.
depending on application code.
It is not uncommon to see 20megs per user
or even more.
We work in the dark, we do what we can, we give what we have, our doubt is our passion, and our passion is our task - the rest, is the madness of art - Henry James
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