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Re: InstantDB: IntantDb Settings and Documentation


Norman

I agree. A section on the optimal settings for various performance 
objectives is a good idea. In the mean time, I think these are the best 
settings for using least memory.

cacheAmount=0
cacheCondition=CACHE_ROWS
systemCacheSize=0
systemCacheCondition=CACHE_ROWS
resultsOnDisk=1
resultsSetCache=CACHE_ROWS
resultsSetCacheAmount=0
rowCacheSize=16
singleRowCount=1
systemRows=0
controlColCacheSize=16
traceLevel=0

In addition, if you want IDB to do garbage collection (3.26 only)
then set:

garbageCollectStatements=10
garbageCollectPercent=70

Also, if the data is read only, then set:

transLevel=0

For speed - basically increase all the memory related properties and 
set:

fastUpdate=1
resultsOnDisk=1

There's not really a "best" set of values for speed. It's just a matter 
of increasing caches etc. until things don't go any faster.

Pete

----- Original Message -----
From: "Norman Kabir" <nkabir@eredyne.com>
Date: Sunday, February 18, 2001 2:40 pm
Subject: InstantDB: IntantDb Settings and Documentation

> Greetings.
> 
> InstantDb has proven to be very flexible. However, I've had some 
> troublefiguring out the proper settings for the .prp file.
> 
> Is there somewhere I can get the proper settings for:
> 1. The most efficient settings for InstantDb (i.e. least RAM)
> 2. The highest performance settings for InstantDb (i.e. fastest 
> queries)
> It would be tremendously helpful to have these settings as part of the
> documentation. They would help provide resource/performance 
> guidelines for
> mobile/embedded systems.
> 
> Thank you.
> 
> 
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