Bug 270937

Summary:	Init (openrc) too slow on startup due to "Caching service dependencies"
Product:	Gentoo Linux	Reporter:	Robert Bradbury <robert.bradbury>
Component:	[OLD] baselayout	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	jlec
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	N/A
Whiteboard:
Package list:		Runtime testing required:	---

Description Robert Bradbury 2009-05-23 12:56:03 UTC

It appears that the new openrc scripts perform some fancy "caching" operation.  Unfortunately on my system this can take 15-20 seconds.  In an era when most linux distributors are trying to make Linux boot faster, Gentoo seems to be heading in the other direction.  Ubuntu boots *significantly* faster on my machine compared with Gentoo, presumably in part due to this "Caching" operation.


Reproducible: Always

Steps to Reproduce:
1. Boot most recent version of linux with most recent baselayout-2 & /etc/init.d files.

Actual Results:  
System boots slowly and exhibits lengthy delays involving "Caching service dependencies".

Expected Results:  
System should boot at least as fast as it used to before the init & init.d upgrades were released.  Preferably Gentoo should boot at least as fast as Ubuntu.

My system also seems to be in a "confused" state in that in some cases (lvm and device-mapper) it seems to think it is in baselayout-1 rather than baselayout-2 (which is what is installed).

Is there a way to fix this? (How does it determine the baselayout state?)

Comment 1 Justin Lecher (RETIRED) gentoo-dev

2009-05-25 08:12:48 UTC

please emerge app-benchmarks/bootchart and reboot with "init=/sbin/bootchartd" in kernel command line. Then attach /var/log/bootchart.tgz.

Comment 2 Mike Auty (RETIRED) gentoo-dev

2009-05-26 22:32:46 UTC

Robert, your baselayout-1/baselayout-2 confusion is probably due to bug 270646, please CC yourself on that for any further information.

As to the caching issue, it shouldn't attempt a recache on every boot (as far as I'm aware), perhaps there are issues with your clock settings making it assuming the cache is out of date at every boot?

Comment 3 SpanKY gentoo-dev

2009-10-11 09:07:33 UTC

make sure you're using the latest openrc and during shutdown, it should save the cache state to disk.  so make sure you do a clean reboot.  you might also want to try running `rc-status` manually to force a sync.