[ZODB-Dev] Re: ZODB Benchmarks

Sean Allen sean at ardishealth.com
Tue Mar 25 15:23:27 EDT 2008


On Mar 25, 2008, at 2:54 PM, Dieter Maurer wrote:
> Benji York wrote at 2008-3-25 14:24 -0400:
>> ... commit contentions ...
>>> Almost surely there are several causes that all can lead to  
>>> contention.
>>>
>>> We already found:
>>>
>>>  *  client side causes (while the client helds to commit lock)
>>>
>>>    - garbage collections (which can block a client in the order of
>>>      10 to 20 s)
>>
>> Interesting.  Perhaps someone might enjoy investigating turning off
>> garbage collection during commits.
>
> A reconfiguration of the garbage collector helped us with this one
> (the standard configuration is not well tuned to processes with
> large amounts of objects).

what'd you do?



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