From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Slagter Subject: Re: [PATCH] acpi-cpufreq: Use IA32_APERF and IA32_MPERF and get freq feedback from hardware Date: Mon, 25 Sep 2006 15:14:16 +0200 Message-ID: <4517D628.4090100@slagter.name> References: <20060922172824.B811@unix-os.sc.intel.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1267219461==" Return-path: In-Reply-To: <20060922172824.B811@unix-os.sc.intel.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org+glkc-cpufreq=gmane.org@lists.linux.org.uk To: cpufreq@www.linux.org.uk This is a cryptographically signed message in MIME format. --===============1267219461== Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms070201080303090309020206" This is a cryptographically signed message in MIME format. --------------ms070201080303090309020206 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Venkatesh Pallipadi wrote: > > Enable ondemand governor and acpi-cpufreq to use IA32_APERF and IA32_MPERF MSR > to get active frequency feedback for the last sampling interval. This will > make ondemand take right frequency decisions when hardware coordination of > frequency is going on. Does this mean there is actually no real clean approach to determine the current cpu speed? --------------ms070201080303090309020206 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 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJUTCC AwMwggJsoAMCAQICEE+Yma8GCj4zbjwCYATQld8wDQYJKoZIhvcNAQEFBQAwYjELMAkGA1UE BhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBDb25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMT I1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBJc3N1aW5nIENBMB4XDTA2MDgxNjExNDIxM1oX DTA3MDgxNjExNDIxM1owajEQMA4GA1UEBBMHU2xhZ3RlcjEVMBMGA1UEKhMMRXJpayBNYXJ0 aWpuMR0wGwYDVQQDExRFcmlrIE1hcnRpam4gU2xhZ3RlcjEgMB4GCSqGSIb3DQEJARYRZXJp a0BzbGFndGVyLm5hbWUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCxMjf6bCZi rNYgUJk3W0OcpsJAur5A1ipViPrdYD9CQa2eT3flPhd7nbUbg/Ck0Vfz/nSLCbi3aQzwXVKB nqwhwYFmnIH6ZqEZarOChqSa1aZgtEk0XIyYuVHWjnmEQtYW7fHx77/nC9QVPE7yVxw9hw9E xOKHA4mNLNE6A2NAyPAj2pQlGVsvjMLoT3WJw9h9xGT8ECxOilbwMHhO3iDNcbZpim7bb6wW tA1Eq2HxVi16qdiVE118LyHq9NWpSqYWnw68cAR0m1+S0U7Y9MPPvubcX5u2+SUQ6u2X0Qxf PX5DVKrYwJ+a0GCqZcbDxxns4n5vyGfLnglvxoFc6mKPAgMBAAGjLjAsMBwGA1UdEQQVMBOB EWVyaWtAc2xhZ3Rlci5uYW1lMAwGA1UdEwEB/wQCMAAwDQYJKoZIhvcNAQEFBQADgYEASH1G 4NdOdGqXSxInybvla63EKOkqSqejb153dqd1uXXC6P8HbsX23vEqHiT1eP9JfYStNwuNjB+E osGFOkHGUtepGe48biXSR3ToWBZjoBtsjLYk4e7xWPE6ShBbE8y98pqt1VUBkmd64DADDBhg BRWldcXBlSk4D/mJb4A1NukwggMDMIICbKADAgECAhBPmJmvBgo+M248AmAE0JXfMA0GCSqG SIb3DQEBBQUAMGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAo UHR5KSBMdGQuMSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwgSXNzdWluZyBD QTAeFw0wNjA4MTYxMTQyMTNaFw0wNzA4MTYxMTQyMTNaMGoxEDAOBgNVBAQTB1NsYWd0ZXIx FTATBgNVBCoTDEVyaWsgTWFydGlqbjEdMBsGA1UEAxMURXJpayBNYXJ0aWpuIFNsYWd0ZXIx IDAeBgkqhkiG9w0BCQEWEWVyaWtAc2xhZ3Rlci5uYW1lMIIBIjANBgkqhkiG9w0BAQEFAAOC AQ8AMIIBCgKCAQEAsTI3+mwmYqzWIFCZN1tDnKbCQLq+QNYqVYj63WA/QkGtnk935T4Xe521 G4PwpNFX8/50iwm4t2kM8F1SgZ6sIcGBZpyB+mahGWqzgoakmtWmYLRJNFyMmLlR1o55hELW Fu3x8e+/5wvUFTxO8lccPYcPRMTihwOJjSzROgNjQMjwI9qUJRlbL4zC6E91icPYfcRk/BAs TopW8DB4Tt4gzXG2aYpu22+sFrQNRKth8VYteqnYlRNdfC8h6vTVqUqmFp8OvHAEdJtfktFO 2PTDz77m3F+btvklEOrtl9EMXz1+Q1Sq2MCfmtBgqmXGw8cZ7OJ+b8hny54Jb8aBXOpijwID AQABoy4wLDAcBgNVHREEFTATgRFlcmlrQHNsYWd0ZXIubmFtZTAMBgNVHRMBAf8EAjAAMA0G CSqGSIb3DQEBBQUAA4GBAEh9RuDXTnRql0sSJ8m75WutxCjpKkqno29ed3andbl1wuj/B27F 9t7xKh4k9Xj/SX2ErTcLjYwfhKLBhTpBxlLXqRnuPG4l0kd06FgWY6AbbIy2JOHu8VjxOkoQ WxPMvfKardVVAZJneuAwAwwYYAUVpXXFwZUpOA/5iW+ANTbpMIIDPzCCAqigAwIBAgIBDTAN 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/XV9lTzGCA2QwggNgAgEBMHYwYjELMAkGA1UEBhMCWkExJTAjBgNVBAoTHFRoYXd0ZSBD b25zdWx0aW5nIChQdHkpIEx0ZC4xLDAqBgNVBAMTI1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFp bCBJc3N1aW5nIENBAhBPmJmvBgo+M248AmAE0JXfMAkGBSsOAwIaBQCgggHDMBgGCSqGSIb3 DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTA2MDkyNTEzMTQxNlowIwYJKoZI hvcNAQkEMRYEFGomVvEx9xoeKY5s4U1KAo5FV0+GMFIGCSqGSIb3DQEJDzFFMEMwCgYIKoZI hvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFAMAcGBSsOAwIHMA0GCCqGSIb3 DQMCAgEoMIGFBgkrBgEEAYI3EAQxeDB2MGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3 dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJl ZW1haWwgSXNzdWluZyBDQQIQT5iZrwYKPjNuPAJgBNCV3zCBhwYLKoZIhvcNAQkQAgsxeKB2 MGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQu MSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwgSXNzdWluZyBDQQIQT5iZrwYK PjNuPAJgBNCV3zANBgkqhkiG9w0BAQEFAASCAQBos43Dgk8M+WK0sPjO9qu+MTyGSjFCWuUv VXPaxWdvkW6Xw9S6bqBCiUMi3O/zWT1ymF6qhNkPWtSbT01FZFVSqJOpuaOms0MLH9p/W/3I 0ed7Gto80tGRnChhmBcVvJjglmFZfMhBwpLx0h5KXs5mD+A3qQZLVsZuG2VWMhdn5aA06BHp xI2Sk9kao2O6ol4GVRsc0NQgNA+lIo9vL/mM4dZ2wnQsHSkWYpoMQ5N0JFlZrXH9z68QPzpV OMhw/z7fhUH0BSXhtS5OzO2397v2ZCGLAZN1taj7sZnkHvKXTW54mLPzg920tZX6vyNeJKJI CfPhYsVnxtV7SpDLT2RaAAAAAAAA --------------ms070201080303090309020206-- --===============1267219461== Content-Type: text/plain; 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