netdev - Re: Network latency regressions from 2.6.22 to 2.6.29 (results with IRQ affinity)

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Message-ID: <alpine.DEB.1.10.0904201712140.27942@qirst.com>
Date:	Mon, 20 Apr 2009 17:14:53 -0400 (EDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Eric Dumazet <dada1@...mosbay.com>
cc:	David Miller <davem@...emloft.net>,
	Michael Chan <mchan@...adcom.com>,
	Ben Hutchings <bhutchings@...arflare.com>,
	netdev@...r.kernel.org
Subject: Re: Network latency regressions from 2.6.22 to 2.6.29 (results with
 IRQ affinity)

On Mon, 20 Apr 2009, Eric Dumazet wrote:

> No changes in udpping but noise.

No changes in the results of udpping that you would not consider noise?

The time syscalls are virtual syscalls which are quite cheap.

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