[jira] [Commented] (IGNITE-3640) IGFS: Local secondary: Investigate whether we need BufferedInputStream for open operation.

["Taras Ledkov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-3640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15686963#comment-15686963 ] 

Taras Ledkov commented on IGNITE-3640:
--------------------------------------

Here are results with our simple IgfsBenchmark:
Buffered read: *7048 +/- 125*
Not buffered read: *7150 +/- 127*

Look like the the difference is less then dispersion. But the benchmark checks only serial read file from begin to EOF.
May be if we check repeatable read with changing position inside the buffer the difference will be more significant.

Should we check it?

> IGFS: Local secondary: Investigate whether we need BufferedInputStream for open operation.
> ------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-3640
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3640
>             Project: Ignite
>          Issue Type: Task
>          Components: IGFS
>    Affects Versions: 1.6
>            Reporter: Vladimir Ozerov
>            Assignee: Taras Ledkov
>             Fix For: 2.0
>
>
> We need to accurately investigate IGFS input stream workflow. I have doubts we really need to extend from {{BufferedInputStream}} here.



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