Basic questions

Ruslan Zasukhin sunshine at public.kherson.ua
Sat May 10 10:29:45 CDT 2003


on 5/10/03 9:12 AM, Richard Altenburg at valentina at brainchild.nl wrote:

>> You set the cache size when opening a database. Is there a rule of thumb for
>> how this should be set? Is there a point of diminishing returns if it is too
>> large?
> 
> Paradigma advices you to use half of the user's available RAM for cache. I
> experimented with values between 8 and 128 MB, and all is speedy, and I did
> not notice a fallback in speed as the cache got bigger. Just like 4D, you
> have to be careful to flush the cache frequently, because else you might
> loose a lot of data.

In fact, in Valentina 1.x very big cache may fallback speed.
I think 20-30MB is more then enough for 1.x.

In Valentina 2.0 we have fix this problem.
As I have told, for 2.0 internal file system and cache works 100-300 times
faster.

Once again, one test with old cache have take about 2 hours,
With new cache only about 15 seconds.

For 2.0 Valentina will be really effective even with caches 100-300MB if
needed.

-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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