[infinispan-dev] Performance of Infinispan-Query Module

[Sanne Grinovero]

On 22 October 2013 15:32, Faseela K <faseela.k at ericsson.com> wrote:
> Hi,
>
>   I just tried with 10MB data in the cache.
>   Could you please let me know if there is any lower limit for the cache size, for which Query will show some better performance.

The limit depends on many factors, and probably depends more closely
on the amount of entries than their size, and the matching complexity.

>
>   For iteration, I did cache.keySet(), and then a get for each key.
>   I hope that will work in clustered case also.

No that will not work, read the Cache javadoc.

Sanne

>
> Thanks,
> Faseela
>
> -----Original Message-----
> From: infinispan-dev-bounces at lists.jboss.org [mailto:infinispan-dev-bounces at lists.jboss.org] On Behalf Of Sanne Grinovero
> Sent: Tuesday, October 22, 2013 7:25 PM
> To: infinispan -Dev List
> Subject: Re: [infinispan-dev] Performance of Infinispan-Query Module
>
> Hi Faseela,
> did you run a large scale test? there is a constant cost for the Query creation and index engine initialization; if the number of entries to iterate through is very small then there is no advantage in running a Query.
>
> Also, to keep in mind that you can't use iterate() on a distributed or replicated cache as it won't return results which are not stored locally.
>
> Sanne
>
>
> On 22 October 2013 14:36, Faseela K <faseela.k at ericsson.com> wrote:
>> Hi,
>>
>>    I tried a simple performance test for infinispan-query module using
>> the example mentioned in :
>>
>>
>> https://docs.jboss.org/author/display/ISPN/Querying+Infinispan
>>
>>    What I see is, the querying is much slower than iterating through
>> the cache entries and checking for a match.
>>    Is this behaviour correct, or am I missing some configuration?
>>    My infinispan configuration is :
>>
>>   <infinispan
>>         xsi:schemaLocation="urn:infinispan:config:5.2
>> http://www.infinispan.org/schemas/infinispan-config-5.2.xsd"
>>         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>> xmlns="urn:infinispan:config:5.2">
>>         <default>
>>                 <indexing enabled="true" indexLocalOnly="true">
>>                         <properties>
>>                                 <property name="default.directory_provider"
>> value="ram" />
>>                         </properties>
>>                 </indexing>
>>         </default>
>> </infinispan>
>>
>> Thanks,
>> Faseela
>>
>>
>>
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