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Last updated at Fri, 24 Jul 2020 14:09:54 +0000 | SRPMs: 23856
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  • 0.2.3-alt4.1
  • 0.2.3-alt3.qa4
  • 0.2.3-alt3.qa4
  • 0.2.3-alt3.2
  • 0.2.3-alt3.2
  • 0.2.3-alt3.2
Group :: System/Configuration/Boot and Init
Source RPM: e4rat
Current version: 0.2.3-alt4.1
Built: almost 3 years ago
Rebuilt: almost 3 years ago
Size: 64.7 KB
Repocop status: ok
Home page:

License: GPLv3
Summary: e4rat is a toolset to accelerate the boot process as well as application startups

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.

Current maintainer: Vitaly Lipatov

List of contributors: ACL: List of rpms provided by this srpm:
  • e4rat
  • e4rat-debuginfo
Recent changes (last three changelog entries):

2018-05-31 Aleksei Nikiforov 0.2.3-alt4.1

    - NMU: rebuilt with boost-1.67.0

2017-07-03 Aleksei Nikiforov 0.2.3-alt4

    - Fixed build with new toolchain

2016-04-07 Dmitry V. Levin 0.2.3-alt3.qa4

    - NMU: rebuilt with boost 1.57.0 -> 1.58.0.
The Geyser project is based on code from Prometheus2.0, which had been made available under the MIT License.