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From Duro <duroku...@zoznam.sk>
Subject Re: low persistent messaging performance using kahadb
Date Mon, 14 Dec 2009 13:05:52 GMT

It seems enableJournalDiskSyncs="false" do the trick, but what does this
setting actually do? Is it something i should worry about when disabling
this feature?


Dejan Bosanac wrote:
> 
> Hi Duro,
> 
> kahadb has some trade-offs for scalability and recovery speed vs.
> performance, but shouldn't that much slower. You can check
> activemq-throughout.xml config and see if applying some the parameters
> seen there can help you.
> 
> If performance is your main issue (not scalability and recovery) then
> maybe amq store is the best choice for you.
> 
> Cheers
> --
> Dejan Bosanac - http://twitter.com/dejanb
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 
> 
> 
> On Fri, Dec 11, 2009 at 5:23 PM, Duro <durokuruc@zoznam.sk> wrote:
>>
>> Hi,
>>
>> i've tested kahadb and kahaPersistenceAdapter using same simple test
>> conditions i.e.
>>
>> - persistent queue
>> - 3 consumers
>> - 1 producer
>> - 25 kb message size (10 000 msgs)
>>
>> according this, kahadb has troughput 22 msgs/s while
>> kahaPersistenceAdapter
>> 333 msgs/s. Similar difference observed using kahadb with amq 5.3, amq
>> 5.4
>> snapshot and 5.3.1 snapshot. Why is that? Is it possible to somehow
>> configure kahadb (or message producer) to get better results?
>>
>> Duro
>>
>> --
>> View this message in context:
>> http://old.nabble.com/low-persistent-messaging-performance-using-kahadb-tp26747184p26747184.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>>
> 
> 
> -----
> Dejan Bosanac
> 
> Open Source Integration - http://fusesource.com/
> ActiveMQ in Action - http://www.manning.com/snyder/
> Blog - http://www.nighttale.net
> 

-- 
View this message in context: http://old.nabble.com/low-persistent-messaging-performance-using-kahadb-tp26747184p26777411.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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