From owner-freebsd-net@freebsd.org Mon Aug 26 08:34:30 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 AA495D480B for ; Mon, 26 Aug 2019 08:34:30 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward100p.mail.yandex.net (forward100p.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:100]) (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 46H5051ft6z45Xv for ; Mon, 26 Aug 2019 08:34:28 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback11o.mail.yandex.net (mxback11o.mail.yandex.net [IPv6:2a02:6b8:0:1a2d::62]) by forward100p.mail.yandex.net (Yandex) with ESMTP id B1F2F5980F54; Mon, 26 Aug 2019 11:34:24 +0300 (MSK) Received: from smtp3o.mail.yandex.net (smtp3o.mail.yandex.net [2a02:6b8:0:1a2d::27]) by mxback11o.mail.yandex.net (nwsmtp/Yandex) with ESMTP id HYT0qLw4er-YNPe3JoU; Mon, 26 Aug 2019 11:34:24 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1566808464; bh=noqQPoVx7RZTODUZFPqsQWVgX35hFh8BHkQ5s77qXWg=; h=In-Reply-To:From:Date:References:To:Subject:Message-ID; b=TMKI4TYCBp8tjJ1EneMOqNejKAapgJU+rnKIt5C6eoF6GxrgIyUE5yWxNZD2q5md7 /NfIhRr3JPRNJZruk4H2c3XG8KIyatGq0wBKMEwXl+8YsXdcQfSMDqVsdJcv2IiYkq MbicBGFnxtT4D2jsgh6Idl2B1faB5WCaTzK0/sWc= Received: by smtp3o.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id ycOkKgeDcV-YNc05FTD; Mon, 26 Aug 2019 11:34:23 +0300 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client certificate not present) Subject: Re: finding optimal ipfw strategy To: Eugene Grosbein , Victor Gamov , freebsd-net@freebsd.org References: <4ff39c8f-341c-5d72-1b26-6558c57bff8d@grosbein.net> <270233d9-fcdb-fee9-2557-c2d1ec7bf9e6@yandex.ru> <25f37482-80b7-3aea-2c67-20faedadf429@grosbein.net> 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: <0545745c-a6ee-b6d3-09ac-a8c74295de75@yandex.ru> Date: Mon, 26 Aug 2019 11:31:20 +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: <25f37482-80b7-3aea-2c67-20faedadf429@grosbein.net> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="4bFNlAvtUTZYhicmzK2qo2ePaDhEWTmAC" X-Rspamd-Queue-Id: 46H5051ft6z45Xv X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yandex.ru header.s=mail header.b=TMKI4TYC; dmarc=pass (policy=none) header.from=yandex.ru; spf=pass (mx1.freebsd.org: domain of bu7cher@yandex.ru designates 2a02:6b8:0:1472:2741:0:8b7:100 as permitted sender) smtp.mailfrom=bu7cher@yandex.ru X-Spamd-Result: default: False [-6.19 / 15.00]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a02:6b8:0:1000::/52]; FREEMAIL_FROM(0.00)[yandex.ru]; HAS_ATTACHMENT(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)[-0.994,0]; SIGNED_PGP(-2.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~]; RCVD_TLS_LAST(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[0.0.1.0.7.b.8.0.0.0.0.0.1.4.7.2.2.7.4.1.0.0.0.0.8.b.6.0.2.0.a.2.list.dnswl.org : 127.0.5.1]; ASN(0.00)[asn:13238, ipnet:2a02:6b8::/32, country:RU]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yandex.ru.dwl.dnswl.org : 127.0.5.0]; 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)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.20)[multipart/signed,multipart/mixed,text/plain]; IP_SCORE(0.00)[ip: (-8.84), ipnet: 2a02:6b8::/32(-4.63), asn: 13238(-3.71), country: RU(0.01)]; FREEMAIL_ENVFROM(0.00)[yandex.ru]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[] 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: Mon, 26 Aug 2019 08:34:30 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --4bFNlAvtUTZYhicmzK2qo2ePaDhEWTmAC Content-Type: multipart/mixed; boundary="UivDHSUw0OzG4m32Z0Wvvq7hn3OVkj6c9"; protected-headers="v1" From: "Andrey V. Elsukov" To: Eugene Grosbein , Victor Gamov , freebsd-net@freebsd.org Message-ID: <0545745c-a6ee-b6d3-09ac-a8c74295de75@yandex.ru> Subject: Re: finding optimal ipfw strategy References: <4ff39c8f-341c-5d72-1b26-6558c57bff8d@grosbein.net> <270233d9-fcdb-fee9-2557-c2d1ec7bf9e6@yandex.ru> <25f37482-80b7-3aea-2c67-20faedadf429@grosbein.net> In-Reply-To: <25f37482-80b7-3aea-2c67-20faedadf429@grosbein.net> --UivDHSUw0OzG4m32Z0Wvvq7hn3OVkj6c9 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 26.08.2019 03:30, Eugene Grosbein wrote: >>> Also, you should use old table numbers instead of new symbolic table = names >>> when you have many rules checking for interface names and much traffi= c >>> because checks for numbered tables are slightly more efficient. >>> You may use symbolic names still at source level: >> >> There isn't any old tables, all tables have symbolic names. Even when >> you are creating "table(1)", its name is converted into symbolic name.= >=20 > Yes, and this code path is slightly more efficient. A bit. I have not any performance measurements, but this code is for compatibility and it has more checks to implement this compatibility. So, I doubt it is more efficient :) Internally all symbolic names are mapped into indexes and there should not be any performance impact on packets processing. --=20 WBR, Andrey V. 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