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e4rat icon

e4rat

e4rat ("Ext4 - Reducing Access Times") is a toolset to accelerate the boot process as well as application startups. Through physical file realloction e4rat eliminates both seek times and rotational delays. This leads to a high disk transfer rate.

e4rat screenshot 1

Cost / License

  • Free
  • Open Source

Alerts

  • Discontinued

Platforms

  • Linux
e4rat screenshot 1
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Discontinued

The last update of e4rat is 3 years ago. See https://sourceforge.net/projects/e4rat/files/

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e4rat information

  • Developed by

    by Andreas Rid and Gundolf Kiefer

  • Licensing

    Open Source and Free product.

  • Alternatives

    2 alternatives listed

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  • Supported Languages

    • English

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e4rat was added to AlternativeTo by zilvinasbadaras on and this page was last updated .
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What is e4rat?

e4rat ("Ext4 - Reducing Access Times") is a toolset to accelerate the boot process as well as application startups. Through physical file realloction e4rat eliminates both seek times and rotational delays. This leads to a high disk transfer rate.

Placing files on disk in a sequentially ordered way allows to efficiently read-ahead files in parallel to the program startup. The combination of sequentially reading and a high cache hit rate may reduce the boot time by a factor of three, as the example below shows.

e4rat is based on the online defragmentation ioctl EXT4_IOC_MOVE_EXT from the Ext4 filesystem, which was introduced in Linux Kernel 2.6.31. Other filesystem types and/or earlier versions of extended filesystems are not supported.