Swapping ebuilds

Links

• http://turulomio.users.sourceforge.net/doxygen/swapping_ebuilds/
• https://github.com/turulomio/swapping_ebuilds

What is swapping_ebuilds

It's a script to detect swapping compiling ebuilds in Gentoo. With this tool you can detect swapping in computers with small RAM to try to improve its compilation time.

Once you detect swapping ebuilds you can change this behaviour using, you can use /etc/portage/package.env to change the number of paralell process in compilation to reduce the needed RAM.

For example if your MAKEOPTS in /etc/portage/make.conf uses -j4, and dev-qt/qtwebengine compilation is swapping, you can force to use only -j2 with this particular ebuild, creating a file in /etc/portage/env/makeopts-j2

MAKEOPTS="-j2"

and then edit /etc/portage/package.env

dev-qt/qtwebengine makeopts-j2

Next time you compile dev-qt/qtwebengine, Gentoo will use only 2 concurrent process

Usage

swapping_ebuilds --get # To detect swapping
swapping_ebuilds --analyze # To see a swapping report

Linux installation

You can find the ebuild in https://github.com/turulomio/myportage/tree/master/app-admin/swapping_ebuilds

Dependencies

• https://www.python.org/, as the main programming language.
• https://github.com/tartley/colorama
• https://github.com/jmoiron/humanize
• https://github.com/giampaolo/psutil

Changelog

0.6.0 (2021-05-07)

• Remove positive swapping concept. Swapping is Swapping.
• Added --hl_oly to show only highlighted records

0.5.0 (2021-05-06)

• Added --list argument to list registers
• Added highlighted ouput with colorama

0.4.0 (2021-05-02)

• Changed system to swap variation instead of a limit of swap to log
• Added --clean parameter to clean log

0.3.0 (2021-02-21)

• Improved Logging output.
• Captured CTRL+C keys.

0.2.0 (2020-12-31)

• Script converted to a python package

0.1.0 (2020-12-13)

• Script migrated to this project from myportage repository