Re: [Exist-open] exist multiple cores

[Lars W. <lar...@ex...>]

Dear Eduard, 

eXist-db can benefit from multiple cores without the need to configure anything. Having said this, please be aware that a single XQuery (dbbroker) can always run on only one core! So a single XQuery can’t utilise 20 cores but on a 20 core system you can have 20 parallel queries that each use one core. 

Can you provide us with information about the old and new environment? Gigahertz of your CPUs, how much RAM does the system have and how much of this is assigned to eXist-db. What about the hard drives, is eXist-db running from a SSD with the same filesystem as in the old environment? 

Best, 

Lars


> On 6. Oct 2025, at 16:42, Eduard Drenth <ed...@fr...> wrote:
> 
> Dear all,
> 
> We are in the process of migrating exist from our own hardware to a provider.
> 
> Performance drops significantly, the main cause is that exist seems to be using one core only.
> 
> Can exist benefit from multiple cores? And if yes, how is that configured?
> 
> Regards,
> 
> Eduard Drenth, Software Architekt
> 
> ed...@fr...
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