[jira] [Updated] (OAK-5589) GlobbingPathFilter constructor is expensive
[ https://issues.apache.org/jira/browse/OAK-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Stefan Egli updated OAK-5589: - Fix Version/s: 1.6.1 * applied to 1.6 branch: http://svn.apache.org/viewvc?rev=1781980=rev > GlobbingPathFilter constructor is expensive > --- > > Key: OAK-5589 > URL: https://issues.apache.org/jira/browse/OAK-5589 > Project: Jackrabbit Oak > Issue Type: Improvement > Components: core >Affects Versions: 1.6.0 >Reporter: Stefan Egli >Assignee: Stefan Egli > Fix For: 1.7.0, 1.8, 1.6.1 > > Attachments: OAK-5589.patch > > > The [GlobbingPathFilter > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L75] > is doing an expensive {{ImmutableList.copyOf}} while traversing down a path > as part of filtering. ImmutableList internally first creates a Builder with > capacity 4 - thus frequently has to do an {{ObjectArrays.arraysCopyOf}}. > Two things that can be improved here: > * as suggested by [~mduerig] that [private > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L74] > - should not copy at all. Only the public constructors should. So the public > constructors should be rewritten to reflect this. > * {{ImmutableList.copyOf}} cannot be passed an initial capacity > unfortunately. Perhaps there's an alternative for this though. -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Updated] (OAK-5589) GlobbingPathFilter constructor is expensive
[ https://issues.apache.org/jira/browse/OAK-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Stefan Egli updated OAK-5589: - Attachment: OAK-5589.patch Attached [^OAK-5589.patch] with a suggestion for an improvement. With this based on a simplistic benchmark some 25-30% performance gain was achieved. [~mduerig] if you find time, can you please review? thx! > GlobbingPathFilter constructor is expensive > --- > > Key: OAK-5589 > URL: https://issues.apache.org/jira/browse/OAK-5589 > Project: Jackrabbit Oak > Issue Type: Improvement > Components: core >Affects Versions: 1.6.0 >Reporter: Stefan Egli >Assignee: Stefan Egli > Fix For: 1.7.0, 1.8 > > Attachments: OAK-5589.patch > > > The [GlobbingPathFilter > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L75] > is doing an expensive {{ImmutableList.copyOf}} while traversing down a path > as part of filtering. ImmutableList internally first creates a Builder with > capacity 4 - thus frequently has to do an {{ObjectArrays.arraysCopyOf}}. > Two things that can be improved here: > * as suggested by [~mduerig] that [private > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L74] > - should not copy at all. Only the public constructors should. So the public > constructors should be rewritten to reflect this. > * {{ImmutableList.copyOf}} cannot be passed an initial capacity > unfortunately. Perhaps there's an alternative for this though. -- This message was sent by Atlassian JIRA (v6.3.15#6346)
[jira] [Updated] (OAK-5589) GlobbingPathFilter constructor is expensive
[ https://issues.apache.org/jira/browse/OAK-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Stefan Egli updated OAK-5589: - Fix Version/s: 1.8 1.7.0 > GlobbingPathFilter constructor is expensive > --- > > Key: OAK-5589 > URL: https://issues.apache.org/jira/browse/OAK-5589 > Project: Jackrabbit Oak > Issue Type: Improvement > Components: core >Affects Versions: 1.6.0 >Reporter: Stefan Egli >Assignee: Stefan Egli > Fix For: 1.7.0, 1.8 > > > The [GlobbingPathFilter > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L75] > is doing an expensive {{ImmutableList.copyOf}} while traversing down a path > as part of filtering. ImmutableList internally first creates a Builder with > capacity 4 - thus frequently has to do an {{ObjectArrays.arraysCopyOf}}. > Two things that can be improved here: > * as suggested by [~mduerig] that [private > constructor|https://github.com/apache/jackrabbit-oak/blob/jackrabbit-oak-1.6.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/observation/filter/GlobbingPathFilter.java#L74] > - should not copy at all. Only the public constructors should. So the public > constructors should be rewritten to reflect this. > * {{ImmutableList.copyOf}} cannot be passed an initial capacity > unfortunately. Perhaps there's an alternative for this though. -- This message was sent by Atlassian JIRA (v6.3.15#6346)