linux-kernel - Re: [Bug #12208] uml is very slow on 2.6.28 host

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Message-Id: <200902051841.n15IfatX032223@wind.enjellic.com>
Date:	Thu, 5 Feb 2009 12:41:36 -0600
From:	greg@...ellic.com
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Kernel Testers List <kernel-testers@...r.kernel.org>,
	"Miklos Szeredi" <miklos@...redi.hu>
Subject: Re: [Bug #12208] uml is very slow on 2.6.28 host

On Feb 4, 11:58am, "Rafael J. Wysocki" wrote:
} Subject: [Bug #12208] uml is very slow on 2.6.28 host

Good day to everyone.

> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.27 and 2.6.28.
> 
> The following bug entry is on the current list of known regressions
> introduced between 2.6.27 and 2.6.28.  Please verify if it still should
> be listed and let me know (either way).
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12208
> Subject		: uml is very slow on 2.6.28 host
> Submitter	: Miklos Szeredi <miklos@...redi.hu>
> Date		: 2008-12-12 9:35 (55 days old)
> References	: http://marc.info/?l=linux-kernel&m=122907463518593&w=4

I'm not convinced its as fast as it should be on 2.6.27.

I'm currently testing 2.6.27.14 hosts on several different pieces of
hardware with a common 2.6.23.17 guest.

Currently the UML guest on my desktop machine which is an 11 year old
300Mhz dual-processor Pentium-II with 256MB of RAM running 2.6.22.14
is giving a rather sound performance drubbing to the identical UML
guest running on a 2.5GHZ dual-quad 5420 with 16GB of RAM running a
32-bit 2.6.27.14.

}-- End of excerpt from "Rafael J. Wysocki"

As always,
Dr. G.W. Wettstein, Ph.D.   Enjellic Systems Development, LLC.
4206 N. 19th Ave.           Specializing in information infra-structure
Fargo, ND  58102            development.
PH: 701-281-1686
FAX: 701-281-3949           EMAIL: greg@...ellic.com
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