From patchwork Fri Feb 13 04:17:21 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 23098 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 05991DDEEC for ; Fri, 13 Feb 2009 15:17:48 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758731AbZBMERm (ORCPT ); Thu, 12 Feb 2009 23:17:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758597AbZBMERm (ORCPT ); Thu, 12 Feb 2009 23:17:42 -0500 Received: from qmta06.emeryville.ca.mail.comcast.net ([76.96.30.56]:42601 "EHLO QMTA06.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757865AbZBMERl (ORCPT ); Thu, 12 Feb 2009 23:17:41 -0500 Received: from OMTA06.emeryville.ca.mail.comcast.net ([76.96.30.51]) by QMTA06.emeryville.ca.mail.comcast.net with comcast id FFRR1b00p16AWCUA6GHiZP; Fri, 13 Feb 2009 04:17:42 +0000 Received: from lost.foo-projects.org ([63.64.152.142]) by OMTA06.emeryville.ca.mail.comcast.net with comcast id FGHN1b00o34bfcX8SGHRTY; Fri, 13 Feb 2009 04:17:40 +0000 From: Jeff Kirsher Subject: [net-next PATCH 2/6] igb: reduce size required to trigger low latency To: davem@davemloft.net Cc: netdev@vger.kernel.org, jeff@garzik.org, gospo@redhat.com, Alexander Duyck , Jeff Kirsher Date: Thu, 12 Feb 2009 20:17:21 -0800 Message-ID: <20090213041721.3848.61896.stgit@lost.foo-projects.org> In-Reply-To: <20090213041654.3848.39227.stgit@lost.foo-projects.org> References: <20090213041654.3848.39227.stgit@lost.foo-projects.org> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Alexander Duyck Update the Adaptive Interrupt Moderation algorithm so that the low latency state is triggered less easily to prevent high interrupt loads. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher --- drivers/net/igb/igb_main.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 1e7678c..8701330 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -2541,7 +2541,7 @@ static unsigned int igb_update_itr(struct igb_adapter *adapter, u16 itr_setting, if (bytes > 25000) { if (packets > 35) retval = low_latency; - } else if (bytes < 6000) { + } else if (bytes < 1500) { retval = low_latency; } break;