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Open Source and information security mailing list archives
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Date: Wed, 08 Nov 2006 18:43:53 -0800 (PST) From: David Miller <davem@...emloft.net> To: jesse.brandeburg@...il.com Cc: jmerkey@...eranetworks.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: e1000 driver 2.6.18 - how to waste processor cycles From: "Jesse Brandeburg" <jesse.brandeburg@...il.com> Date: Wed, 8 Nov 2006 17:01:44 -0800 > If you can show that it is faster to use pci_dma_sync_single_for_cpu > and friends I'd be glad to take a patch. The problem is if you don't recycle the buffer and really unmap, you'll flush twice. That can potentially be expensive. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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