Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/531508/?format=api
{ "id": 531508, "url": "http://patchwork.ozlabs.org/api/patches/531508/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1445018231-3196-15-git-send-email-jacob.e.keller@intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1445018231-3196-15-git-send-email-jacob.e.keller@intel.com>", "list_archive_url": null, "date": "2015-10-16T17:57:09", "name": "[next-queue,v5,15/17] fm10k: change default Tx ITR to 25usec", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "99bb9a7f5c1a70185fc796a935e46b88a8fdc89b", "submitter": { "id": 9784, "url": "http://patchwork.ozlabs.org/api/people/9784/?format=api", "name": "Jacob Keller", "email": "jacob.e.keller@intel.com" }, "delegate": { "id": 68, "url": "http://patchwork.ozlabs.org/api/users/68/?format=api", "username": "jtkirshe", "first_name": "Jeff", "last_name": "Kirsher", "email": "jeffrey.t.kirsher@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1445018231-3196-15-git-send-email-jacob.e.keller@intel.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/531508/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/531508/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@lists.osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Received": [ "from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136])\n\tby ozlabs.org (Postfix) with ESMTP id 9093E14110E\n\tfor <incoming@patchwork.ozlabs.org>;\n\tSat, 17 Oct 2015 04:57:29 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id DCE2E329D1;\n\tFri, 16 Oct 2015 17:57:28 +0000 (UTC)", "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id 5dGYSDBfuB3U; Fri, 16 Oct 2015 17:57:25 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby silver.osuosl.org (Postfix) with ESMTP id EE8DC332DD;\n\tFri, 16 Oct 2015 17:57:19 +0000 (UTC)", "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n\tby ash.osuosl.org (Postfix) with ESMTP id 4C0C01CE568\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 16 Oct 2015 17:57:16 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 44BDE8B0C5\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 16 Oct 2015 17:57:16 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id giqxR7+lu0VE for <intel-wired-lan@lists.osuosl.org>;\n\tFri, 16 Oct 2015 17:57:15 +0000 (UTC)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 961F394B5A\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 16 Oct 2015 17:57:15 +0000 (UTC)", "from fmsmga001.fm.intel.com ([10.253.24.23])\n\tby orsmga103.jf.intel.com with ESMTP; 16 Oct 2015 10:57:15 -0700", "from jekeller-desk.amr.corp.intel.com ([134.134.3.123])\n\tby fmsmga001.fm.intel.com with ESMTP; 16 Oct 2015 10:57:16 -0700" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.17,689,1437462000\"; d=\"scan'208\";a=\"812781801\"", "From": "Jacob Keller <jacob.e.keller@intel.com>", "To": "Intel Wired LAN <intel-wired-lan@lists.osuosl.org>", "Date": "Fri, 16 Oct 2015 10:57:09 -0700", "Message-Id": "<1445018231-3196-15-git-send-email-jacob.e.keller@intel.com>", "X-Mailer": "git-send-email 2.6.1.264.gbab76a9", "In-Reply-To": "<1445018231-3196-1-git-send-email-jacob.e.keller@intel.com>", "References": "<1445018231-3196-1-git-send-email-jacob.e.keller@intel.com>", "Subject": "[Intel-wired-lan] [next-queue v5 15/17] fm10k: change default Tx\n\tITR to 25usec", "X-BeenThere": "intel-wired-lan@lists.osuosl.org", "X-Mailman-Version": "2.1.18-1", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.lists.osuosl.org>", "List-Unsubscribe": "<http://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@lists.osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@lists.osuosl.org?subject=help>", "List-Subscribe": "<http://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@lists.osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@lists.osuosl.org>" }, "content": "The current default ITR for Tx is overly restrictive. Using a simple\nnetperf TCP_STREAM test, we top out at about 10Gb/s for a single thread\nwhen running using 1500 byte frames. By reducing the ITR value to 25usec\n(up to 40K interrupts a second from 10K), we are able to achieve 36Gb/s\nfor a single thread TCP stream test.\n\nSigned-off-by: Jacob Keller <jacob.e.keller@intel.com>\n---\n drivers/net/ethernet/intel/fm10k/fm10k.h | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h\nindex 7bf0c2ddce75..2a16cd1b2a8b 100644\n--- a/drivers/net/ethernet/intel/fm10k/fm10k.h\n+++ b/drivers/net/ethernet/intel/fm10k/fm10k.h\n@@ -171,11 +171,12 @@ struct fm10k_ring_container {\n #define FM10K_ITR_MAX\t\t0x0FFF\t/* maximum value for ITR */\n #define FM10K_ITR_10K\t\t100\t/* 100us */\n #define FM10K_ITR_20K\t\t50\t/* 50us */\n+#define FM10K_ITR_40K\t\t25\t/* 25us */\n #define FM10K_ITR_ADAPTIVE\t0x8000\t/* adaptive interrupt moderation flag */\n \n #define ITR_IS_ADAPTIVE(itr) (!!(itr & FM10K_ITR_ADAPTIVE))\n \n-#define FM10K_TX_ITR_DEFAULT\tFM10K_ITR_10K\n+#define FM10K_TX_ITR_DEFAULT\tFM10K_ITR_40K\n #define FM10K_RX_ITR_DEFAULT\tFM10K_ITR_20K\n #define FM10K_ITR_ENABLE\t(FM10K_ITR_AUTOMASK | FM10K_ITR_MASK_CLEAR)\n \n", "prefixes": [ "next-queue", "v5", "15/17" ] }