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uml is very slow on 2.6.28 host

Bug #12208 [email protected] 1 participant 1 message Feb 5, 2009 1 message not in the archive

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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.

Quoted 7 lines

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).

Quoted 5 lines

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12208
Subject : uml is very slow on 2.6.28 host
Submitter : Miklos Szeredi <[email protected]>
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,

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