[ZODB-Dev] ZEO overhead?

Neil Schemenauer nas at mems-exchange.org
Tue Aug 19 12:20:32 EDT 2003


On Wed, Aug 20, 2003 at 12:50:37AM +1000, 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?

Our DB fits into the OS page cache.  I don't think IO is a bottleneck.
OProfile results seem to support that theory.

  Neil



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