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MyASPN >> Mail Archive >> zodb-dev
zodb-dev
Re: [ZODB-Dev] ZEO overhead?
by Shane Hathaway other posts by this author
Aug 19 2003 3:43PM messages near this date
[ZODB-Dev] Importing large .zexp fails with ZEO | Re: [ZODB-Dev] ZEO overhead?
John Barratt wrote:
>  Shane Hathaway wrote:
>  
> > In reality, I think there's little reason why ZEO over a local 
> > connection should be noticeably slower than using FileStorage 
> > directly.  Network communication time should be dwarfed by hard drive 
> > seek time.
>  
>  
>  Do you mean that ZEO as it is shouldn't be this slow when loading into 
>  the client cache, or just that it should be able to be coded to be 
>  almost as fast as FileStorage (eg. using non async code as discussed) 
>  and it is hence a known issue?

It's only a hypothesis, but I think the ZEO client code has some 
inherent limitations due to its use of asynchronous communication. 
Fixing it would require a lot of source code changes.

Shane


_______________________________________________
For more information about ZODB, see the ZODB Wiki:
http://www.zope.org/Wikis/ZODB/

ZODB-Dev mailing list  -  ZODB-Dev@[...].org
http://mail.zope.org/mailman/listinfo/zodb-dev
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Shane Hathaway
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John Barratt

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