[infinispan-issues] [JBoss JIRA] Updated: (ISPN-276) Expensive to read a single byte in Lucene Directory

[Davide Di Somma (JIRA)]

     [ https://jira.jboss.org/jira/browse/ISPN-276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Davide Di Somma updated ISPN-276:
---------------------------------

    Attachment: readByte.diff


In this patch I added a new test case to verify that readByte method (but also readBytes) works properly.
I modified getChunkFromPosition InfinispanIndexInput's method  to make the single byte read operation faster



> Expensive to read a single byte in Lucene Directory
> ---------------------------------------------------
>
>                 Key: ISPN-276
>                 URL: https://jira.jboss.org/jira/browse/ISPN-276
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Lucene Directory
>    Affects Versions: 4.0.0.CR1, 4.0.0.CR2
>            Reporter: Sanne Grinovero
>            Assignee: Sanne Grinovero
>             Fix For: 4.0.0.GA
>
>         Attachments: readByte.diff
>
>
> public byte readByte() in org.infinispan.lucene.InfinispanIndexIO is doing some expensive operations, while this is a very hot spot.
> Spotted by Earwin Burrfoot on Lucene's developer list.

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