[ZODB-Dev] Experiences with Relstorage performance for setups with heavy writes

Shane Hathaway shane at hathawaymix.org
Wed Sep 17 15:48:48 EDT 2008


Dieter Maurer wrote:
> Andreas Jung wrote at 2008-9-12 10:31 +0200:
>> anyone having experiences with the performance of Relstorage on Zope 
>> installations which heavy parallel writes (which is often a bottleneck). 
>> Does Relstorage provide any significant advantages over ZEO.
> 
> As "Relstorage" emulates "FileStorage" behaviour for writes/commits,
> using the same storage global lock, you should not see a significant
> change. Maybe, writing the "log" temporary file is avoided.

Agreed; I grabbed the ZEO/FileStorage commit algorithm and used it 
without significant changes in RelStorage.  If there are any performance 
differences, they are due to optimizations in coding, networking, etc.

Shane



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