Bug 273101

Summary:	Need for a variable to set the number of parallel jobs
Product:	Gentoo Hosted Projects	Reporter:	Diego Elio Pettenò (RETIRED) <flameeyes>
Component:	PMS/EAPI	Assignee:	PMS/EAPI <pms>
Status:	RESOLVED WONTFIX
Severity:	enhancement	CC:	dev-portage, esigra, lpmichalik
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	174380

Description Diego Elio Pettenò (RETIRED) gentoo-dev

2009-06-07 20:14:52 UTC

We need a way to express clearly how many parallel jobs emerge should use; while we have been using MAKEOPTS up to now, it cannot be easily used for non-make buildsystems (waf, scons) which also support parallel build.

My proposal is to create a new variable, get it to default to 1 if not set, and then use that as -j parameter for emake _before_ makeopts (this way users can still re-set make to use the load average and other alternatives.

Even though other buildsystems can use the load average, it would be a _huge_ improvement to have at least a static number of job setting!

Comment 1 Ulrich Müller gentoo-dev

2014-06-24 09:57:03 UTC

Rejected for EAPI 5 and again for EAPI 6:
http://www.gentoo.org/proj/en/council/meeting-logs/20140617-summary.txt

makeopts_jobs() and makeopts_loadavg() in multiprocessing.eclass provide similar functionality.