RE: [Lmbench-users] Latest kernel LMBench performance results.(wi th HZ=1000)

[Pavan Kumar Reddy N.S.]

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There is debugging code enabled for the loopback interface
in 2.5.x to test out some new features in the networking stack.
This is another reason for the performance drop.

-pavan

> -----Original Message-----
> From: Ralf Baechle [mailto:[e-mail]]=20
> Sent: Thursday, November 07, 2002 8:33 AM
> To: Nagel, Michael
> Cc: [e-mail]
> Subject: Re: [Lmbench-users] Latest kernel LMBench=20
> performance results.(wi th HZ=3D1000)
>=20
>=20
> On Wed, Nov 06, 2002 at 10:05:17AM +0100, Nagel, Michael wrote:
>=20
> > Reading the results I saw a noticeable decrease of the TCP=20
> performance=20
> > between the 2.4.x and the 2.5.x kernels. Any explanations=20
> on that? How=20
> > about the impact on performance for server-related applications?
>=20
> That's a typical observation for development kernels and=20
> should not be valued to highly.  In the past month large=20
> parts of the kernel code have be rewritten.  All these=20
> subsystems and their frequently very subtle interaction with=20
> each other still need alot of fine tuning which will happen=20
> as we progress further to a 2.6 release and probably even=20
> beyond 2.6.0.
>=20
>   Ralf
> _______________________________________________
> Lmbench-users mailing list
> [e-mail]=20
> http://bitmover.com/mailman/listinfo/lmbench-> users
>=20

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