From owner-freebsd-net@FreeBSD.ORG Tue Oct 16 08:26:50 2007 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3F2F016A417 for ; Tue, 16 Oct 2007 08:26:50 +0000 (UTC) (envelope-from wawa@yandex-team.ru) Received: from cmail.yandex.ru (cmail.yandex.ru [213.180.193.1]) by mx1.freebsd.org (Postfix) with ESMTP id C402913C461 for ; Tue, 16 Oct 2007 08:26:49 +0000 (UTC) (envelope-from wawa@yandex-team.ru) Received: from [87.250.250.1] (wawa.yandex.ru [87.250.250.1]) by cmail.yandex.ru (8.14.1/8.14.1) with ESMTP id l9G8QjV3064195; Tue, 16 Oct 2007 12:26:47 +0400 (MSD) (envelope-from wawa@yandex-team.ru) Message-ID: <471475C3.9000702@yandex-team.ru> Date: Tue, 16 Oct 2007 12:26:43 +0400 From: Vladimir Ivanov Organization: Yandex LLC User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.13pre) Gecko/20070505 Iceape/1.0.9 (Debian-1.0.10~pre070720-0etch3+lenny1) MIME-Version: 1.0 To: Karl Triebes , freebsd-net References: <46B07931.3080300@yandex-team.ru> <55e8a96c0708010626x7a433c21hacc124c7c70af471@mail.gmail.com> <46B09802.7080908@yandex-team.ru> <4712405B.1080808@yandex-team.ru> <26a198490710142105g8fe59c2o86ceaa10d82c3c47@mail.gmail.com> In-Reply-To: <26a198490710142105g8fe59c2o86ceaa10d82c3c47@mail.gmail.com> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms090401080000060904060000" Cc: Subject: Re: SMPable version of EM driver X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Oct 2007 08:26:50 -0000 This is a cryptographically signed message in MIME format. --------------ms090401080000060904060000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Karl Triebes wrote: > Vladamir, > interesting work. Do you have performance numbers with each of your > changes to see how much each contributed? How does this method scale > with cpu cores. With your multiple RX thread idea, do you think there > will a lot of cache thrashing due to fact that now > 1 core is looking > at RX from the same device? > DMA activity is a main problem for cache. They have about zero cache hit rate even w/one CPU core I seem. > Thanks, > > Karl. > > [skip] WBR, -- Vladimir Ivanov Network Operations Center OOO "Yandex" t: +7 495 739-7000 f: +7 495 739-7070 @: noc@yandex.net (corporate) wawa@yandex-team.ru (personal) www: www.yandex.ru -- --------------ms090401080000060904060000 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGJzCC AuAwggJJoAMCAQICEA2B08GbcpEEl6Da/kpOht8wDQYJKoZIhvcNAQEFBQAwYjELMAkGA1UE BhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMT I1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBJc3N1aW5nIENBMB4XDTA3MDcwNDE1MTM0NVoX DTA4MDcwMzE1MTM0NVowRTEfMB0GA1UEAxMWVGhhd3RlIEZyZWVtYWlsIE1lbWJlcjEiMCAG CSqGSIb3DQEJARYTd2F3YUB5YW5kZXgtdGVhbS5ydTCCASIwDQYJKoZIhvcNAQEBBQADggEP ADCCAQoCggEBANuooNgTWqT0D35N7rdbZAAje8iyZcELUHy3Dgh6Pymm+s7RIeP8EoxTnn1o YQMFkZdthNT/j+MXl61O0zBshti+34/9m0rQzntCHDboJf9yTeA0bOqL43EdnEMlUWTEaf00 dcOySQ3fpTKiiQKqFASI1MUPDCfQQuu6ansTCpddG8fOu+zaE570aH6hoy/NRGhH8SCbcARY QxjjiddCUknclX2gz4ak+wVB4IapHNSdtRG3APj5GZY9VK7sAwjOqodcNwbQEG/Gj6j99fU3 7GYAL+x3bz9wve9YGEJ7TUPLpd582tZtiiakqurnluId4Ix1B/HSyAZnPAr5WYJZrwcCAwEA AaMwMC4wHgYDVR0RBBcwFYETd2F3YUB5YW5kZXgtdGVhbS5ydTAMBgNVHRMBAf8EAjAAMA0G CSqGSIb3DQEBBQUAA4GBABzUVmJvH3Cr++WFtTFVewG2cLZo3geMNRuT+wIPULXt59LPuSg7 ZnK04wXNC2Am5UKilWxvDS6gs6pW2ZIDHw8YttQzej7z7+Scujr9uyfxMcTxHfk826UAdadz eKYGHEvb41wokW/lZR6fMLqRzfjHLDTZM46GiXQFVSMtqCT0MIIDPzCCAqigAwIBAgIBDTAN BgkqhkiG9w0BAQUFADCB0TELMAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTES MBAGA1UEBxMJQ2FwZSBUb3duMRowGAYDVQQKExFUaGF3dGUgQ29uc3VsdGluZzEoMCYGA1UE CxMfQ2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjEkMCIGA1UEAxMbVGhhd3RlIFBl cnNvbmFsIEZyZWVtYWlsIENBMSswKQYJKoZIhvcNAQkBFhxwZXJzb25hbC1mcmVlbWFpbEB0 aGF3dGUuY29tMB4XDTAzMDcxNzAwMDAwMFoXDTEzMDcxNjIzNTk1OVowYjELMAkGA1UEBhMC WkExJTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMTI1Ro YXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBJc3N1aW5nIENBMIGfMA0GCSqGSIb3DQEBAQUAA4GN ADCBiQKBgQDEpjxVc1X7TrnKmVoeaMB1BHCd3+n/ox7svc31W/Iadr1/DDph8r9RzgHU5VAK MNcCY1osiRVwjt3J8CuFWqo/cVbLrzwLB+fxH5E2JCoTzyvV84J3PQO+K/67GD4Hv0CAAmTX p6a7n2XRxSpUhQ9IBH+nttE8YQRAHmQZcmC3+wIDAQABo4GUMIGRMBIGA1UdEwEB/wQIMAYB Af8CAQAwQwYDVR0fBDwwOjA4oDagNIYyaHR0cDovL2NybC50aGF3dGUuY29tL1RoYXd0ZVBl cnNvbmFsRnJlZW1haWxDQS5jcmwwCwYDVR0PBAQDAgEGMCkGA1UdEQQiMCCkHjAcMRowGAYD VQQDExFQcml2YXRlTGFiZWwyLTEzODANBgkqhkiG9w0BAQUFAAOBgQBIjNFQg+oLLswNo2as Zw9/r6y+whehQ5aUnX9MIbj4Nh+qLZ82L8D0HFAgk3A8/a3hYWLD2ToZfoSxmRsAxRoLgnSe JVCUYsfbJ3FXJY3dqZw5jowgT2Vfldr394fWxghOrvbqNOUQGls1TXfjViF4gtwhGTXeJLHT HUb/XV9lTzGCAlEwggJNAgEBMHYwYjELMAkGA1UEBhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBD b25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMTI1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFp bCBJc3N1aW5nIENBAhANgdPBm3KRBJeg2v5KTobfMAkGBSsOAwIaBQCggbEwGAYJKoZIhvcN AQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMDcxMDE2MDgyNjQzWjAjBgkqhkiG 9w0BCQQxFgQUxjoh5G1hJRZ++OkRZDG9nn7VmEcwUgYJKoZIhvcNAQkPMUUwQzAKBggqhkiG 9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcwDQYIKoZIhvcN AwICASgwDQYJKoZIhvcNAQEBBQAEggEAdqk6a7dr834JF8h/CcZbU+7r4P6FBOCaClFnZl/v LnKNvCyFAqIwfANBxI3CA3ioNVwNbCSuCBHgsXkF3ScBBOI/crB8wbpEQ5ANEbpJnZNbTGrS etyMdLFPhZlLiCGXmDkGWeYzRFHjVbS7h2OcaMyd3+GmTWnTQey8sFLfgM77U+xZ9TQ1yFOZ L7wxplMb1s+B82PyM9RRGaLhtBXKctbPk9swoHQgcu7oAdsrwLAczWSt0A4ISP/V4VJPnHS9 Hh20QpZACYQulLKS/4G2cx4P/t8gEKbRXUuHSSjIKmgxRHc5LULa78A/GSDe0WdQ5Ch7K38B dM1UJodoPWGnfQAAAAAAAA== --------------ms090401080000060904060000--