Date: Thu, 29 Jan 2009 11:43:46 +0000 From: Richard Tector <richardtector@thekeelecentre.com> To: Charles Sprickman <spork@bway.net> Cc: freebsd-stable@freebsd.org Subject: Re: 7.1, mpt and slow writes Message-ID: <49819672.1090208@thekeelecentre.com> In-Reply-To: <alpine.OSX.2.00.0901290351250.37588@toasty.nat.fasttrackmonkey.com> References: <alpine.OSX.2.00.0901290351250.37588@toasty.nat.fasttrackmonkey.com>
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This is a cryptographically signed message in MIME format. --------------ms020309030602020206020908 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Charles Sprickman wrote: > Hello, > > I think this needs a few more eyes: > > http://lists.freebsd.org/pipermail/freebsd-scsi/2009-January/003782.html > > In short, writes are slow, likely do to the write-cache being enabled on > the controller. The sysctl used in 6.x to turn the cache off don't seem > to be in 7.x. I have two Dell 860's here also running 7.1-REL. A simple dd on one shows roughly 60MB/s writes to a mirror of 2 320GB disks on what I'm assuming is the same LSI controller card (SAS5) richard@moses:~# cat /boot/loader.conf hw.mpt.enable_sata_wc=1 Seems to work just fine for me. Regards, Richard --------------ms020309030602020206020908 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 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIHPDCC A5owggMDoAMCAQICAQcwDQYJKoZIhvcNAQEEBQAwgYExCzAJBgNVBAYTAlVLMRYwFAYDVQQI Ew1TdGFmZm9yZHNoaXJlMQ4wDAYDVQQHEwVLZWVsZTEZMBcGA1UEChMQVGhlIEtlZWxlIENl bnRyZTEvMC0GA1UEAxMmVGhlIEtlZWxlIENlbnRyZSBDZXJ0aWZpY2F0ZSBBdXRob3JpdHkw HhcNMDYwOTI5MTQyNTM4WhcNMTAwOTI5MTQyNTM4WjCBijELMAkGA1UEBhMCVUsxFjAUBgNV BAgTDVN0YWZmb3Jkc2hpcmUxGTAXBgNVBAoTEFRoZSBLZWVsZSBDZW50cmUxFzAVBgNVBAMT DlJpY2hhcmQgVGVjdG9yMS8wLQYJKoZIhvcNAQkBFiByaWNoYXJkdGVjdG9yQHRoZWtlZWxl Y2VudHJlLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAxAE7t9Z0xg5iVOnqE2q7 UhaRoPrygXPXnZ4bHM8P2E4VKfpCP9tmU5rqP/zDwOKwUAFZsv1yHvzMj2d4S8nTP3eC75YY pztd1tiGIUyi2O1vtQuVrcogCC0Xe8TovubsjeosoEN6kujkTLhgWKj+/jDtb0ELiSwh7NnN CoStDvcCAwEAAaOCARUwggERMAkGA1UdEwQCMAAwLAYJYIZIAYb4QgENBB8WHU9wZW5TU0wg R2VuZXJhdGVkIENlcnRpZmljYXRlMB0GA1UdDgQWBBR5NRc2TrF8Qfj9ZMKvq5m5Lh9IFTCB tgYDVR0jBIGuMIGrgBSNCaM0QC1N5Hiyb/MPAVd/ouQEEqGBh6SBhDCBgTELMAkGA1UEBhMC VUsxFjAUBgNVBAgTDVN0YWZmb3Jkc2hpcmUxDjAMBgNVBAcTBUtlZWxlMRkwFwYDVQQKExBU aGUgS2VlbGUgQ2VudHJlMS8wLQYDVQQDEyZUaGUgS2VlbGUgQ2VudHJlIENlcnRpZmljYXRl IEF1dGhvcml0eYIJAJZYbH4e6XXnMA0GCSqGSIb3DQEBBAUAA4GBABy7Pq1hPDwR2vUs9Jlh LHXE1xLe/COWwTjmZ95mnvsX6XL6eVEzuc0xE66Mf1pyFxDKXxTCBj+G/ialE9AYiXTJAAVJ uvhvkm/u1vXdlNlfQJDRnZKFxrZsIT03LIysq+Hb4qZDpQvgWUUyGib4Ze7pNXPp8HOtlTgB ICafws5LMIIDmjCCAwOgAwIBAgIBBzANBgkqhkiG9w0BAQQFADCBgTELMAkGA1UEBhMCVUsx FjAUBgNVBAgTDVN0YWZmb3Jkc2hpcmUxDjAMBgNVBAcTBUtlZWxlMRkwFwYDVQQKExBUaGUg S2VlbGUgQ2VudHJlMS8wLQYDVQQDEyZUaGUgS2VlbGUgQ2VudHJlIENlcnRpZmljYXRlIEF1 dGhvcml0eTAeFw0wNjA5MjkxNDI1MzhaFw0xMDA5MjkxNDI1MzhaMIGKMQswCQYDVQQGEwJV SzEWMBQGA1UECBMNU3RhZmZvcmRzaGlyZTEZMBcGA1UEChMQVGhlIEtlZWxlIENlbnRyZTEX MBUGA1UEAxMOUmljaGFyZCBUZWN0b3IxLzAtBgkqhkiG9w0BCQEWIHJpY2hhcmR0ZWN0b3JA dGhla2VlbGVjZW50cmUuY29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDEATu31nTG DmJU6eoTartSFpGg+vKBc9ednhsczw/YThUp+kI/22ZTmuo//MPA4rBQAVmy/XIe/MyPZ3hL ydM/d4LvlhinO13W2IYhTKLY7W+1C5WtyiAILRd7xOi+5uyN6iygQ3qS6ORMuGBYqP7+MO1v QQuJLCHs2c0KhK0O9wIDAQABo4IBFTCCAREwCQYDVR0TBAIwADAsBglghkgBhvhCAQ0EHxYd T3BlblNTTCBHZW5lcmF0ZWQgQ2VydGlmaWNhdGUwHQYDVR0OBBYEFHk1FzZOsXxB+P1kwq+r mbkuH0gVMIG2BgNVHSMEga4wgauAFI0JozRALU3keLJv8w8BV3+i5AQSoYGHpIGEMIGBMQsw CQYDVQQGEwJVSzEWMBQGA1UECBMNU3RhZmZvcmRzaGlyZTEOMAwGA1UEBxMFS2VlbGUxGTAX BgNVBAoTEFRoZSBLZWVsZSBDZW50cmUxLzAtBgNVBAMTJlRoZSBLZWVsZSBDZW50cmUgQ2Vy dGlmaWNhdGUgQXV0aG9yaXR5ggkAllhsfh7pdecwDQYJKoZIhvcNAQEEBQADgYEAHLs+rWE8 PBHa9Sz0mWEsdcTXEt78I5bBOOZn3mae+xfpcvp5UTO5zTETrox/WnIXEMpfFMIGP4b+JqUT 0BiJdMkABUm6+G+Sb+7W9d2U2V9AkNGdkoXGtmwhPTcsjKyr4dvipkOlC+BZRTIaJvhl7uk1 c+nwc62VOAEgJp/CzksxggMbMIIDFwIBATCBhzCBgTELMAkGA1UEBhMCVUsxFjAUBgNVBAgT DVN0YWZmb3Jkc2hpcmUxDjAMBgNVBAcTBUtlZWxlMRkwFwYDVQQKExBUaGUgS2VlbGUgQ2Vu dHJlMS8wLQYDVQQDEyZUaGUgS2VlbGUgQ2VudHJlIENlcnRpZmljYXRlIEF1dGhvcml0eQIB BzAJBgUrDgMCGgUAoIIB6TAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJ BTEPFw0wOTAxMjkxMTQzNDZaMCMGCSqGSIb3DQEJBDEWBBQ5dT4Vycu5dMiK0SAcen0X+ttQ NjBSBgkqhkiG9w0BCQ8xRTBDMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDANBggqhkiG 9w0DAgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKDCBmAYJKwYBBAGCNxAEMYGKMIGHMIGB MQswCQYDVQQGEwJVSzEWMBQGA1UECBMNU3RhZmZvcmRzaGlyZTEOMAwGA1UEBxMFS2VlbGUx GTAXBgNVBAoTEFRoZSBLZWVsZSBDZW50cmUxLzAtBgNVBAMTJlRoZSBLZWVsZSBDZW50cmUg Q2VydGlmaWNhdGUgQXV0aG9yaXR5AgEHMIGaBgsqhkiG9w0BCRACCzGBiqCBhzCBgTELMAkG A1UEBhMCVUsxFjAUBgNVBAgTDVN0YWZmb3Jkc2hpcmUxDjAMBgNVBAcTBUtlZWxlMRkwFwYD VQQKExBUaGUgS2VlbGUgQ2VudHJlMS8wLQYDVQQDEyZUaGUgS2VlbGUgQ2VudHJlIENlcnRp ZmljYXRlIEF1dGhvcml0eQIBBzANBgkqhkiG9w0BAQEFAASBgJQ2yQAuT7/lMb/0/NlaJxgO QZ+bDJooKSI2s9x7Oua9rKAFxJvRB+8590s2Umzqvk1fPDc2pk3JsjU/sJfoT8zC/0Swnnha vCTOiyFLu8UsETqFyYRpxuDXoiRfGIY470mfExCY3gympUu+CXuA6fD7m3fZ0LRPcd/MB7d6 9JdDAAAAAAAA --------------ms020309030602020206020908--
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