Re: [net-next 01/11] ixgbe: Do not use DCA to prefetch the entire packet into the cache
From: Eric Dumazet <hidden>
Date: 2012-11-13 14:13:34
On Tue, 2012-11-13 at 06:03 -0800, Jeff Kirsher wrote:
From: Alexander Duyck <redacted> The way the code was previously written it was causing DCA to prefetch the entire packet into the cache when it was enabled. That is excessive as we only really need the headers. We are now prefetching the headers via software so doing this from DCA would be redundant anyway. So clear the bit that was causing us to prefetch the packet data and instead only use DCA for the descriptor rings. Signed-off-by: Alexander Duyck <redacted> Tested-by: Phil Schmitt <redacted> Signed-off-by: Jeff Kirsher <redacted> ---
Excellent ! My own ixgbe cards are moving so I cant test this, do you guys have some numbers to share ? Thanks