hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-14539) Slight improvement of StoreScanner.optimize
Date Fri, 02 Oct 2015 06:04:26 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl updated HBASE-14539:
----------------------------------
    Fix Version/s:     (was: 0.98.12)
                       (was: 1.1.0)
                       (was: 1.0.1)
                   1.1.3
                   1.0.3
                   1.2.1
                   0.98.15
                   1.3.0

> Slight improvement of StoreScanner.optimize
> -------------------------------------------
>
>                 Key: HBASE-14539
>                 URL: https://issues.apache.org/jira/browse/HBASE-14539
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Minor
>             Fix For: 2.0.0, 1.3.0, 0.98.15, 1.2.1, 1.0.3, 1.1.3
>
>
> While looking at the code I noticed that StoreScanner.optimize does not some unnecessary
work. This is a very tight loop and even just looking up a reference can throw off the CPUs
cache lines. This does safe a few percent of performance (not a lot, though).



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message