From owner-freebsd-net@freebsd.org Thu Aug 15 14:41:46 2019 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C2EF4AB2B8 for ; Thu, 15 Aug 2019 14:41:46 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward102j.mail.yandex.net (forward102j.mail.yandex.net [IPv6:2a02:6b8:0:801:2::102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 468Tfx35BZz3QVJ for ; Thu, 15 Aug 2019 14:41:45 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback7g.mail.yandex.net (mxback7g.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:168]) by forward102j.mail.yandex.net (Yandex) with ESMTP id 717F6F21049 for ; Thu, 15 Aug 2019 17:41:40 +0300 (MSK) Received: from smtp1p.mail.yandex.net (smtp1p.mail.yandex.net [2a02:6b8:0:1472:2741:0:8b6:6]) by mxback7g.mail.yandex.net (nwsmtp/Yandex) with ESMTP id 4KrgCTGuu3-fegmubIp; Thu, 15 Aug 2019 17:41:40 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1565880100; bh=IoWyJwIOoxJUAyblsX09G3ge6CiGxrnpSQPG48hxAd4=; h=In-Reply-To:From:Date:References:To:Subject:Message-ID; b=QkUPVjpHzF0n5wo4PSH/gtqtEGQDcb9CSWpR4XbgBnBOwge03usN5XHUB/ujrjxkm wswdgKrGHRDVew7ZIQVE1cml/nRTfJPDz1vgxv31VRgg06xJFOK6x40VctZkoBz9rZ 4wA12b27L6LsMCSAGi5PGri82tCyjsxKAK3ZTk+I= Received: by smtp1p.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id F9hrcBr8R4-fdeSerVm; Thu, 15 Aug 2019 17:41:39 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) Subject: Re: igb netstat input counters 2x? To: freebsd-net@freebsd.org References: <20190814002705.GD2342@funkthat.com> From: "Andrey V. Elsukov" Openpgp: id=E6591E1B41DA1516F0C9BC0001C5EA0410C8A17A Autocrypt: addr=bu7cher@yandex.ru; prefer-encrypt=mutual; keydata= mQENBEwBF1kBCADB9sXFhBEUy8qQ4X63Y8eBatYMHGEFWN9ypS5lI3RE6qQW2EYbxNk7qUC5 21YIIS1mMFVBEfvR7J9uc7yaYgFCEb6Sce1RSO4ULN2mRKGHP3/Sl0ijZEjWHV91hY1YTHEF ZW/0GYinDf56sYpDDehaBF5wkWIo1+QK5nmj3vl0DIDCMNd7QEiWpyLVwECgLX2eOAXByT8B bCqVhJGcG6iFP7/B9Ll6uX5gb8thM9LM+ibwErDBVDGiOgvfxqidab7fdkh893IBCXa82H9N CNwnEtcgzh+BSKK5BgvPohFMgRwjti37TSxwLu63QejRGbZWSz3OK3jMOoF63tCgn7FvABEB AAG0JUFuZHJleSBWLiBFbHN1a292IDxidTdjaGVyQHlhbmRleC5ydT6JATgEEwECACIFAkwB F1kCGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEAHF6gQQyKF6qmYIAI6ekfm1VA4T vqankI1ISE6ku4jV7UlpIQlEbE7/8n3Zd6teJ+pGOQhN5qk8QE7utdPdbktAzi+x7LIJVzUw 4TywZLXGrkP7VKYkfg6oyCGyzITghefQeJtr2TN4hYCkzPWpylkue8MtmqfZv/6royqwTbN+ +E09FQNvTgRUYJYTeQ1qOsxNRycwvw3dr2rOfuxShbzaHBB1pBIjGrMg8fC5pd65ACH5zuFV A0CoTNGMDrEZSfBkTW604UUHFFXeCoC3dwDZRKOWJ3GmMXns65Ai5YkA63BSHEE1Qle3VBhd cG1w0CB5FBV3pB27UVnf0jEbysrDqW4qN7XMRFSWNAy5AQ0ETAEXWQEIAJ2p6l9LBoqdH/0J PEFDY2t2gTvAuzz+8zs3R03dFuHcNbOwjvWCG0aOmVpAzkRa8egn5JB4sZaFUtKPYJEQ1Iu+ LUBwgvtXf4vWpzC67zs2dDuiW4LamH5p6xkTD61aHR7mCB3bg2TUjrDWn2Jt44cvoYxj3dz4 S49U1rc9ZPgD5axCNv45j72tggWlZvpefThP7xT1OlNTUqye2gAwQravXpZkl5JG4eOqJVIU X316iE3qso0iXRUtO7OseBf0PiVmk+wCahdreHOeOxK5jMhYkPKVn7z1sZiB7W2H2TojbmcK HZC22sz7Z/H36Lhg1+/RCnGzdEcjGc8oFHXHCxUAEQEAAYkBHwQYAQIACQUCTAEXWQIbDAAK CRABxeoEEMihegkYCAC3ivGYNe2taNm/4Nx5GPdzuaAJGKWksV+w9mo7dQvU+NmI2az5w8vw 98OmX7G0OV9snxMW+6cyNqBrVFTu33VVNzz9pnqNCHxGvj5dL5ltP160JV2zw2bUwJBYsgYQ WfyJJIM7l3gv5ZS3DGqaGIm9gOK1ANxfrR5PgPzvI9VxDhlr2juEVMZYAqPLEJe+SSxbwLoz BcFCNdDAyXcaAzXsx/E02YWm1hIWNRxanAe7Vlg7OL+gvLpdtrYCMg28PNqKNyrQ87LQ49O9 50IIZDOtNFeR0FGucjcLPdS9PiEqCoH7/waJxWp6ydJ+g4OYRBYNM0EmMgy1N85JJrV1mi5i Message-ID: <52b37710-8eb3-7e08-ee04-4682deb93c76@yandex.ru> Date: Thu, 15 Aug 2019 17:38:22 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190814002705.GD2342@funkthat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="QC5I8Les35Q23YMu4bkOKleND2YL3RHJI" X-Rspamd-Queue-Id: 468Tfx35BZz3QVJ X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yandex.ru header.s=mail header.b=QkUPVjpH; dmarc=pass (policy=none) header.from=yandex.ru; spf=pass (mx1.freebsd.org: domain of bu7cher@yandex.ru designates 2a02:6b8:0:801:2::102 as permitted sender) smtp.mailfrom=bu7cher@yandex.ru X-Spamd-Result: default: False [-6.19 / 15.00]; R_SPF_ALLOW(-0.20)[+ip6:2a02:6b8:0::/52]; FREEMAIL_FROM(0.00)[yandex.ru]; HAS_ATTACHMENT(0.00)[]; TO_DN_NONE(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[yandex.ru:+]; DMARC_POLICY_ALLOW(-0.50)[yandex.ru,none]; NEURAL_HAM_SHORT(-0.99)[-0.992,0]; SIGNED_PGP(-2.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[2.0.1.0.0.0.0.0.0.0.0.0.2.0.0.0.1.0.8.0.0.0.0.0.8.b.6.0.2.0.a.2.list.dnswl.org : 127.0.5.1]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~]; SUBJECT_ENDS_QUESTION(1.00)[]; FREEMAIL_ENVFROM(0.00)[yandex.ru]; ASN(0.00)[asn:13238, ipnet:2a02:6b8::/32, country:RU]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[yandex.ru:s=mail]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; IP_SCORE_FREEMAIL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_LOW(-1.00)[yandex.ru.dwl.dnswl.org : 127.0.5.1]; RCVD_TLS_LAST(0.00)[]; IP_SCORE(0.00)[ip: (-9.39), ipnet: 2a02:6b8::/32(-4.64), asn: 13238(-3.73), country: RU(0.01)] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Aug 2019 14:41:46 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --QC5I8Les35Q23YMu4bkOKleND2YL3RHJI Content-Type: multipart/mixed; boundary="SpA76jSROhuoysCdPdJ6UIS4n3RDA61UP"; protected-headers="v1" From: "Andrey V. Elsukov" To: freebsd-net@freebsd.org Message-ID: <52b37710-8eb3-7e08-ee04-4682deb93c76@yandex.ru> Subject: Re: igb netstat input counters 2x? References: <20190814002705.GD2342@funkthat.com> In-Reply-To: <20190814002705.GD2342@funkthat.com> --SpA76jSROhuoysCdPdJ6UIS4n3RDA61UP Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 14.08.2019 03:27, John-Mark Gurney wrote: > I'm doing some perf testing on an APU4 board, and I noticed that > it looks like the input netstat counters are 2x than what they should > be. >=20 > I was seeing 60MiB/sec via netstat -w 1 -I igb1: > 40034 0 0 60760352 2538 0 177909 0 > 40700 0 0 61776228 2574 0 180300 0 >=20 > But the program was only reading 27MB/sec. I decided to read the mac > stats directly via: > bytes=3D$(sysctl -n dev.igb.1.mac_stats.good_octets_recvd); while sleep= 1; do > nbytes=3D$(sysctl -n dev.igb.1.mac_stats.good_octets_recvd) > echo $(($nbytes - $bytes)); bytes=3D$nbytes > done >=20 > and saw much more reasonable numbers: > 31099740 > 30512488 > 30675974 >=20 > Which is more in line w/ the 27MB/sec that the program reports. >=20 > I haven't looked at the code to see what could be causing the double > counting. Also, the output numbers appear to be accurate. >=20 > This is with 13.0-CURRENT from the July 25th snapshot, which is r350322= =2E Does this doubling happens only with IBYTES counter? What about IPACKETS? Also I'd check L2/L3 addresses to be sure that they by accident are not broadcast/multicast. --=20 WBR, Andrey V. Elsukov --SpA76jSROhuoysCdPdJ6UIS4n3RDA61UP-- --QC5I8Les35Q23YMu4bkOKleND2YL3RHJI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAl1VbmQACgkQAcXqBBDI oXoIKggAnaVq0IpdhJ8Bv+91G2zd0Rm6/RTxyD6zofM+TPhLSgVZ1Wxk/ygcm6fa lPi4GnXvrwhz2996ZUurbUC72gp6yJ0Trb25iGHYfwySCUhgmk6O3yRKmvq79Lu/ m4i8YYp4os59ccTPurEVGUWjYCn3AWz5tpq6hHnc/7FjokFvSEI6yaFPjOoVYJhP /nn3D9QD9S2orRZx6Xeajwukq0LnUhmHnwNq+pvJwrW9aqjyL+OTs8XDdl9mcTEL 0AsT1oTei4lYA3ypMLcj5aKltdvxc6f5OWHgbBxLFlNET2E5fEK6rUGDoWdJcRxi WKw5pA3Os2We/eJoV0Gi0Bf42GIBkA== =aE5G -----END PGP SIGNATURE----- --QC5I8Les35Q23YMu4bkOKleND2YL3RHJI--