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From "Filipe Manana (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-1009) Make couch_stream buffer configurable
Date Mon, 03 Jan 2011 16:28:45 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976802#action_12976802
] 

Filipe Manana commented on COUCHDB-1009:
----------------------------------------

Adam, do you think 64Kb is too much for most scenarios?
I don't mind at all to leave this as 4Kb .

> Make couch_stream buffer configurable
> -------------------------------------
>
>                 Key: COUCHDB-1009
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1009
>             Project: CouchDB
>          Issue Type: Improvement
>          Components: Database Core
>         Environment: trunk
>            Reporter: Filipe Manana
>            Assignee: Filipe Manana
>            Priority: Trivial
>         Attachments: COUCHDB-1009.patch
>
>
> The couch_stream buffer is hardcoded to 4Kb.
> This value should be configurable. Larger values can improve write and specially read
performance (if we write larger chunks to disk, we have higher chances of reading more contiguous
disk blocks afterwards). 
> I also think it's a good idea to change the default value from 4Kb to something higher
(64Kb for e.g.).
> Patch attached

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