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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.
e4rat: 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.
| Name: | e4rat |
| Release: | 0.2.3-1mamba |
| Group: | System/Tools |
| Maintainer: | silvan |
| License: | GPL |
| Size: | 80,89 kB |
| Upstream URL: | http://e4rat.sourceforge.net/ |
| Build time: | 2012-10-31 14:07:53 |
Binary packages and requirements
| i586 | |
|---|---|
| Built RPMS | e4rat e4rat-debug |
| Build requirements | cmake [1] glibc-devel [1] libe2fs-devel [1] |
History of changes
| Date | Packager | Release | Description |
|---|---|---|---|
| 2012-10-31 | silvan | 0.2.3-1mamba | - package created by autospec |
