[tuto][general][responsiveness] eatmydata: Reduction in synchronization calls, therefore faster software execution

[K-mik@Z]

What is for
Basically its a PRELOAD library that redirects all sync and fsync system calls to "/dev/null"... saving non-crucial I/O (which is ideal for extending the life of your HDD/SSD)

From the man page
eatmydata runs a command in the environment where data-to-disk synchronization calls (like fsync(), fdatasync(), sync(), msync() and open() O_SYNC / O_DSYNC flags) have no effect. LD_PRELOAD library libeatmydata overrides respective C library calls with custom functions that don't trigger synchronization but return success nevertheless.

DO NOT use libeatmydata on software where you care about what it stores. It's called libEAT-MY-DATA for a reason.
(like office suite)


Usage

First, install it

Code: Select all

sudo apt-get install -y eatmydata

Then
https://github.com/stewartsmith/libeatmydata

Code: Select all

eatmydata foo

e.g: eatmydata firefox

Simple and effective, enjoy

[Stevo]

I've been using it in my pbuilder package pbuilder chroots, since using it significantly reduces the time it takes the time they need to spin up from just the base tarball and install all of a package's build-depends.

[aus9]

@K-mik@Z

Love your tips.....my xmas wish is for you to do more