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https://issues.apache.org/jira/browse/KAFKA-1646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14220515#comment-14220515
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Honghai Chen commented on KAFKA-1646:
-------------------------------------

Hi Jay,
      I came from same team with Xueqiang,  any concern for the change?  What 
kind of information do you need us provide more?

> Improve consumer read performance for Windows
> ---------------------------------------------
>
>                 Key: KAFKA-1646
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1646
>             Project: Kafka
>          Issue Type: Improvement
>          Components: log
>    Affects Versions: 0.8.1.1
>         Environment: Windows
>            Reporter: xueqiang wang
>              Labels: newbie, patch
>         Attachments: Improve consumer read performance for Windows.patch, 
> KAFKA-1646-truncate-off-trailing-zeros-on-broker-restart-if-bro.patch
>
>
> This patch is for Window platform only. In Windows platform, if there are 
> more than one replicas writing to disk, the segment log files will not be 
> consistent in disk and then consumer reading performance will be dropped down 
> greatly. This fix allocates more disk spaces when rolling a new segment, and 
> then it will improve the consumer reading performance in NTFS file system.
> This patch doesn't affect file allocation of other filesystems, for it only 
> adds statements like 'if(Os.iswindow)' or adds methods used on Windows.



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