Bug 576488

Summary:	sys-apps/portage: portdbapi should not cache metadata in memory unless the "frozen" flag has been set
Product:	Portage Development	Reporter:	Zac Medico <zmedico>
Component:	Core	Assignee:	Portage team <dev-portage>
Status:	RESOLVED FIXED
Severity:	normal	Keywords:	InVCS
Priority:	Normal
Version:	2.2
Hardware:	All
OS:	All
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	573774

Description Zac Medico gentoo-dev

2016-03-05 06:01:42 UTC

The portdbapi aux_get method aggressively caches metadata in memory. This behavior can cause applications to consume much more memory than necessary. It would make sense for the aggressive cache behavior to be enabled by the existing "frozen" flag, so that it is disabled by default. Doing so will not affect depgraph performance, since depgraph caches the metadata separately, via Package instances.

Comment 1 Zac Medico gentoo-dev

2016-03-05 07:59:17 UTC

There's a patch in the following branch:

https://github.com/zmedico/portage/tree/bug_576488

Comment 2 Brian Dolbec (RETIRED) gentoo-dev

2016-03-05 08:05:11 UTC

Looks, good.  If only all patches were that simple ;)

Comment 3 Zac Medico gentoo-dev

2016-03-05 08:25:21 UTC

Thanks, this is in the master branch:

https://gitweb.gentoo.org/proj/portage.git/commit/?id=a0f48531213976c20190e61dea7100b190f5139f

Comment 4 Zac Medico gentoo-dev

2016-03-14 03:13:09 UTC

Fixed in 2.2.28.