From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id EDF6145940; Mon, 9 Sep 2024 00:31:49 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7B6E6402A8; Mon, 9 Sep 2024 00:31:49 +0200 (CEST) Received: from mail-pj1-f50.google.com (mail-pj1-f50.google.com [209.85.216.50]) by mails.dpdk.org (Postfix) with ESMTP id 70D204026A for ; Mon, 9 Sep 2024 00:31:48 +0200 (CEST) Received: by mail-pj1-f50.google.com with SMTP id 98e67ed59e1d1-2d8881850d9so2866127a91.3 for ; Sun, 08 Sep 2024 15:31:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1725834707; x=1726439507; darn=dpdk.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=91WKPqcoiSR2JzSiFGOZsC5FpKNsK2lPJh6Vwe8NXgY=; b=gUFZ8sJ923sXEad7wTjEmD3bTDR2XX/26Us9wTPcrA/zflHM55vR5jQcg0KCUT3/03 IsQbI7tlfkc8Zml78rL3iYztQUaNoGgDzchDajvQ09dYVaKaVtDuIKZImbkf/YNdNE+d Tkq7Fr2+34J8ICwQUYVB65mddTVyG1+WPl2Qr1/Nr5X9CQRNOXoMu94QT8CC0OYFIdpu 0gLnJuS92ZvleRUZlCRSXNYehsrfi6Rr/765JJHX3LK9Is1fgQOAF6QrACtW6jd90sUl PkOGtxdeXorAF5MrQSt4mn3QXKTBkF9EeKO3MATg341CkKfdFGFV99VpJjk+e0AbkUCi Pnlw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725834707; x=1726439507; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=91WKPqcoiSR2JzSiFGOZsC5FpKNsK2lPJh6Vwe8NXgY=; b=PdZo7cwA8HfXrfP2B3HtgttVPdrCiDZp6bGmAPO6ar4qG2sKz4O3Mu5rq19PUUlGtG CeRp0pI4MN5+q2Lem9X0rypsoaIclh5GFafxCKfxBTJNKutrc1eATamXwoZE59S7TYcX IlO0//fMbKsviagFojxtaWqqvzt7TvedtQ7qfmvcP7/27suSgu+MpAMpVFEaHSNI5tCf go8GN8/9xU9LgtbJAPyMyVMgKCyFu9eEHIQjzIyywhgTKg5usN2qToYhEFz+yHqzBayi 0L3edxXFKIlfu6AFoi2225L1xIrXNMvaPheAILjtv/DM6wKmC9P9Z1yCX0g39XOUOZq1 fIfg== X-Gm-Message-State: AOJu0YyHvgqp/EZr+lEEBEwiqMeNWveiMDP6fuA9cyPtXH2w6aJTYT7k e+U6vaduLBgMkBQDQGBF2jtGmt9YMIZDVANLRXil1dPmr421LYBCzpMyIQ6pCjCfBDi7+yvwJSj pbV3hpgDV6DwEyfvQ0OLtqIp9LF6pjw== X-Google-Smtp-Source: AGHT+IEOs+qKA5wHk2VSePKYPM6HGk4p6BSarWqE1JFSS5PH+fkSWFNphmRddHDRpRtXyyhjG0Bu0/EyDh4UQJwiI2Q= X-Received: by 2002:a17:90a:c295:b0:2d8:71f4:1708 with SMTP id 98e67ed59e1d1-2dad50228f9mr8110884a91.19.1725834707218; Sun, 08 Sep 2024 15:31:47 -0700 (PDT) MIME-Version: 1.0 From: Dpdk Newbie Date: Sun, 8 Sep 2024 23:31:36 +0100 Message-ID: Subject: Does DPDK provide RX timestamps? To: dev@dpdk.org Content-Type: multipart/alternative; boundary="000000000000aa36770621a3340f" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --000000000000aa36770621a3340f Content-Type: text/plain; charset="UTF-8" Hi. I am using Intel (i210) and AWS ENA network interface cards. I would like to measure the following RX latencies: 1) NIC to DPDK packet ring buffer 2) DPDK packet ring buffer to application via rte_eth_rx_burst. I don't mind measuring in nanoseconds or CPU cycles. Unfortunately I cannot find any mention of hardware timestamps. I found brief references to mbuf containing a timestamp in the dynamic fields, but nothing definitive. Could someone please clarify what the situation is? Thanks, --000000000000aa36770621a3340f Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi. I am using Intel (i210) and AWS ENA network interface = cards.

I would like to measure the following RX latencie= s:

1) NIC to DPDK packet ring buffer
2) DPDK packet ring b= uffer to application via rte_eth_rx_burst.

I don't mind measurin= g in nanoseconds or CPU cycles.

Unfortunately I cannot find a= ny mention of hardware timestamps.

I found brief references t= o mbuf containing a timestamp in the dynamic fields, but nothing definitive= .

Could someone please clarify what the situation is?

Thanks,=
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