Bug 82948

Summary:	PORTAGE_NICENESS only encapsulates nicess of compilation.
Product:	Portage Development	Reporter:	Olliver Schinagl <oliver>
Component:	Enhancement/Feature Requests	Assignee:	Portage team <dev-portage>
Status:	RESOLVED INVALID
Severity:	normal
Priority:	High
Version:	unspecified
Hardware:	All
OS:	All
Whiteboard:
Package list:		Runtime testing required:	---

Description Olliver Schinagl 2005-02-22 05:28:14 UTC

Currently portage supports the nicessness only of it's compiling children. It would be nice ;) if also all extraction etc would be niced with the PORTAGE_NICENESS value, as the extraction processes is also part of portage. Same goes for wget etc.

E.g. I can emerge -avuD world and go watch a movie, without beeing disturbed a single time. Now, I know right away when a file is beeing extracted because of the stuttering in my movie.

Comment 1 Jason Stubbs (RETIRED) gentoo-dev

2005-02-22 06:45:10 UTC

Portage does run absolutely everything at whatever nice level you specify after its first initialization. The problem you are having is related to lack of custom I/O priorities in the kernel. Google for information about anticipatory schedule, CFQ scheduler and time-sliced CFQ scheduler.

Comment 2 Olliver Schinagl 2005-02-22 09:25:31 UTC

There are indeed 3 I/O shedulers hidden under 'blockdevices'. They where all 3 enabled. The problem was much 'simpler' then that. nVidia IDE chipset drivers didn't play nice. Selecting different drivers for the nForce2 fixed the unzipping delay.

Thanks anyhow!