Messages in this thread | | | Date | Wed, 08 Nov 2006 18:43:53 -0800 (PST) | Subject | Re: e1000 driver 2.6.18 - how to waste processor cycles | From | David Miller <> |
| |
From: "Jesse Brandeburg" <jesse.brandeburg@gmail.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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |