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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2016/01/18 21:04:39 UTC

[jira] [Updated] (JENA-1121) Performance regression in Jena 3.0.1 / Fuseki 2.3.1

     [ https://issues.apache.org/jira/browse/JENA-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne updated JENA-1121:
--------------------------------
    Description: 
We seem to have encountered a severe performance regression in Jena 3.0.1 / Fuseki 2.3.1 as compared with Jena 3.0.0 / Fuseki 2.3.0. A number of our queries are running between 2 and 20 times slower. Here's one small example with configuration for Fuseki. With Fuseki 2.3.0, the query below takes about 200 milliseconds. With Fuseki 2.3.1, it takes 9 seconds. I've also tried it with the latest Fuseki snapshot (apache-jena-fuseki-2.4.0-20160117.183513-33.zip), and got the same result as with the 2.3.1 release.

Here's the test data and configuration:

https://www.dropbox.com/s/b9aepexij5e7noj/jena-performance-test.zip?dl=0

Here's the query:
{noformat}
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix knora-base: <http://www.knora.org/ontology/knora-base#>

SELECT DISTINCT
    ?resourceIri
    ?resourceLabel
    (SAMPLE(?anyMatch) AS ?match)

WHERE {
    BIND(STR("de") AS ?preferredLanguage)
    BIND(STR("en") AS ?fallbackLanguage)

    ?s <http://jena.apache.org/text#query> 'Zeitglöcklein' .

    MINUS {
        ?s knora-base:isDeleted true .
    }

    OPTIONAL {
        ?s a ?valueObjectType .
        ?valueObjectType rdfs:subClassOf+ knora-base:Value .
        ?resIri ?resourceProperty ?s .
        ?s knora-base:valueHasString ?literal .

        OPTIONAL {
            ?resourceProperty rdfs:label ?preferredLanguageResourcePropertyLabel .
            FILTER (LANG(?preferredLanguageResourcePropertyLabel) = ?preferredLanguage) .
        }

        OPTIONAL {
            ?resourceProperty rdfs:label ?fallbackLanguageResourcePropertyLabel .
            FILTER (LANG(?fallbackLanguageResourcePropertyLabel) = ?fallbackLanguage) .
        }

        OPTIONAL {
            ?resourceProperty rdfs:label ?anyLanguageResourcePropertyLabel .
        }

        BIND(COALESCE(str(?preferredLanguageResourcePropertyLabel), str(?fallbackLanguageResourcePropertyLabel), str(?anyLanguageResourcePropertyLabel)) AS ?propertyLabel)

        BIND(CONCAT(STR(?valueObjectType), "|", STR(?propertyLabel), "|", STR(?literal)) AS ?anyMatch)

        MINUS {
            ?resIri knora-base:isDeleted true .
        }
    }

    BIND(COALESCE(?resIri, ?s) AS ?resourceIri)

    ?resourceIri a ?resourceClass .
    ?resourceClass rdfs:subClassOf+ knora-base:Resource .
    ?resourceIri rdfs:label ?resourceLabel .
}

GROUP BY
    ?resourceIri
    ?resourceLabel

ORDER BY ?resourceIri
{noformat}

Best regards,
Benjamin Geer

  was:
We seem to have encountered a severe performance regression in Jena 3.0.1 / Fuseki 2.3.1 as compared with Jena 3.0.0 / Fuseki 2.3.0. A number of our queries are running between 2 and 20 times slower. Here's one small example with configuration for Fuseki. With Fuseki 2.3.0, the query below takes about 200 milliseconds. With Fuseki 2.3.1, it takes 9 seconds. I've also tried it with the latest Fuseki snapshot (apache-jena-fuseki-2.4.0-20160117.183513-33.zip), and got the same result as with the 2.3.1 release.

Here's the test data and configuration:

https://www.dropbox.com/s/b9aepexij5e7noj/jena-performance-test.zip?dl=0

Here's the query:

prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix knora-base: <http://www.knora.org/ontology/knora-base#>

SELECT DISTINCT
    ?resourceIri
    ?resourceLabel
    (SAMPLE(?anyMatch) AS ?match)

WHERE {
    BIND(STR("de") AS ?preferredLanguage)
    BIND(STR("en") AS ?fallbackLanguage)

    ?s <http://jena.apache.org/text#query> 'Zeitglöcklein' .

    MINUS {
        ?s knora-base:isDeleted true .
    }

    OPTIONAL {
        ?s a ?valueObjectType .
        ?valueObjectType rdfs:subClassOf+ knora-base:Value .
        ?resIri ?resourceProperty ?s .
        ?s knora-base:valueHasString ?literal .

        OPTIONAL {
            ?resourceProperty rdfs:label ?preferredLanguageResourcePropertyLabel .
            FILTER (LANG(?preferredLanguageResourcePropertyLabel) = ?preferredLanguage) .
        }

        OPTIONAL {
            ?resourceProperty rdfs:label ?fallbackLanguageResourcePropertyLabel .
            FILTER (LANG(?fallbackLanguageResourcePropertyLabel) = ?fallbackLanguage) .
        }

        OPTIONAL {
            ?resourceProperty rdfs:label ?anyLanguageResourcePropertyLabel .
        }

        BIND(COALESCE(str(?preferredLanguageResourcePropertyLabel), str(?fallbackLanguageResourcePropertyLabel), str(?anyLanguageResourcePropertyLabel)) AS ?propertyLabel)

        BIND(CONCAT(STR(?valueObjectType), "|", STR(?propertyLabel), "|", STR(?literal)) AS ?anyMatch)

        MINUS {
            ?resIri knora-base:isDeleted true .
        }
    }

    BIND(COALESCE(?resIri, ?s) AS ?resourceIri)

    ?resourceIri a ?resourceClass .
    ?resourceClass rdfs:subClassOf+ knora-base:Resource .
    ?resourceIri rdfs:label ?resourceLabel .
}

GROUP BY
    ?resourceIri
    ?resourceLabel

ORDER BY ?resourceIri

Best regards,
Benjamin Geer


> Performance regression in Jena 3.0.1 / Fuseki 2.3.1
> ---------------------------------------------------
>
>                 Key: JENA-1121
>                 URL: https://issues.apache.org/jira/browse/JENA-1121
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Jena
>    Affects Versions: Jena 3.0.1, Fuseki 2.3.1, Jena 3.1.0, Fuseki 2.4.0
>         Environment: Mac OS X 10.10.5, iMac, 3.4 GHz Intel Core i7, 32 GB RAM
>            Reporter: Benjamin Geer
>            Priority: Critical
>              Labels: performance
>
> We seem to have encountered a severe performance regression in Jena 3.0.1 / Fuseki 2.3.1 as compared with Jena 3.0.0 / Fuseki 2.3.0. A number of our queries are running between 2 and 20 times slower. Here's one small example with configuration for Fuseki. With Fuseki 2.3.0, the query below takes about 200 milliseconds. With Fuseki 2.3.1, it takes 9 seconds. I've also tried it with the latest Fuseki snapshot (apache-jena-fuseki-2.4.0-20160117.183513-33.zip), and got the same result as with the 2.3.1 release.
> Here's the test data and configuration:
> https://www.dropbox.com/s/b9aepexij5e7noj/jena-performance-test.zip?dl=0
> Here's the query:
> {noformat}
> prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> prefix knora-base: <http://www.knora.org/ontology/knora-base#>
> SELECT DISTINCT
>     ?resourceIri
>     ?resourceLabel
>     (SAMPLE(?anyMatch) AS ?match)
> WHERE {
>     BIND(STR("de") AS ?preferredLanguage)
>     BIND(STR("en") AS ?fallbackLanguage)
>     ?s <http://jena.apache.org/text#query> 'Zeitglöcklein' .
>     MINUS {
>         ?s knora-base:isDeleted true .
>     }
>     OPTIONAL {
>         ?s a ?valueObjectType .
>         ?valueObjectType rdfs:subClassOf+ knora-base:Value .
>         ?resIri ?resourceProperty ?s .
>         ?s knora-base:valueHasString ?literal .
>         OPTIONAL {
>             ?resourceProperty rdfs:label ?preferredLanguageResourcePropertyLabel .
>             FILTER (LANG(?preferredLanguageResourcePropertyLabel) = ?preferredLanguage) .
>         }
>         OPTIONAL {
>             ?resourceProperty rdfs:label ?fallbackLanguageResourcePropertyLabel .
>             FILTER (LANG(?fallbackLanguageResourcePropertyLabel) = ?fallbackLanguage) .
>         }
>         OPTIONAL {
>             ?resourceProperty rdfs:label ?anyLanguageResourcePropertyLabel .
>         }
>         BIND(COALESCE(str(?preferredLanguageResourcePropertyLabel), str(?fallbackLanguageResourcePropertyLabel), str(?anyLanguageResourcePropertyLabel)) AS ?propertyLabel)
>         BIND(CONCAT(STR(?valueObjectType), "|", STR(?propertyLabel), "|", STR(?literal)) AS ?anyMatch)
>         MINUS {
>             ?resIri knora-base:isDeleted true .
>         }
>     }
>     BIND(COALESCE(?resIri, ?s) AS ?resourceIri)
>     ?resourceIri a ?resourceClass .
>     ?resourceClass rdfs:subClassOf+ knora-base:Resource .
>     ?resourceIri rdfs:label ?resourceLabel .
> }
> GROUP BY
>     ?resourceIri
>     ?resourceLabel
> ORDER BY ?resourceIri
> {noformat}
> Best regards,
> Benjamin Geer



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