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https://issues.apache.org/jira/browse/CB-1478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460056#comment-13460056
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Daniel Kurka commented on CB-1478:
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I drafted a small benchmark (so far only for android) to demonstrate the issue.
XHR is somewhat 12 to 80 times faster compared to FileReader.
Some results from my Nexus S with Android 4.1:
100kB with XHR took: 9ms
100kB with FileReader took: 446ms
1MB with XHR took: 37ms
1MB with FileReader took: 2664ms
The code for the benchmark can be found here:
https://github.com/dankurka/cordova-io-benchmark
I have also attached an apk file that should run on many devices so we can get
a better feeling.
> FileReader vs XHR bench
> -----------------------
>
> Key: CB-1478
> URL: https://issues.apache.org/jira/browse/CB-1478
> Project: Apache Cordova
> Issue Type: Task
> Components: Android, BlackBerry, iOS, WP7
> Affects Versions: 2.2.0
> Reporter: Brian LeRoux
> Assignee: Joe Bowser
> Priority: Minor
> Fix For: 2.2.0
>
> Attachments: IOBench-debug.apk
>
>
> Long standing rumor that FileReader is/was faster than XHR debunked at
> PhoneGap Day EU. Before we do anything to optimize our i/o, we need some
> actual science on which is faster, on which platforms.
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