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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.
Provided files
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 |
| Architecture: | i586 |
| Group: | System/Tools |
| Size: | 773.54 kB |
| Upstream URL: | http://e4rat.sourceforge.net/ |
| Source RPM: | e4rat |
| Brothers | Provides | Obsoletes | Requires | Recommends |
|---|---|---|---|---|
| e4rat-debug | config(e4rat) = 0:0.2.3-1mamba e4rat = 0:0.2.3-1mamba libe4rat-core.so.0 | ld-linux.so.2 [1] ld-linux.so.2(GLIBC_2.3) [1] libc.so.6(GLIBC_2.10) [1] libext2fs.so.2 [1] libm.so.6 [1] libm.so.6(GLIBC_2.0) [1] libpthread.so.0 [1] libpthread.so.0(GLIBC_2.0) [1] libpthread.so.0(GLIBC_2.1) [1] libpthread.so.0(GLIBC_2.2) [1] libpthread.so.0(GLIBC_2.3.2) [1] |
