Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756754AbZDDVKn (ORCPT ); Sat, 4 Apr 2009 17:10:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752874AbZDDVKe (ORCPT ); Sat, 4 Apr 2009 17:10:34 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:47684 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751866AbZDDVKe (ORCPT ); Sat, 4 Apr 2009 17:10:34 -0400 Message-ID: <49D7CCBA.60301@garzik.org> Date: Sat, 04 Apr 2009 17:10:18 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: Mark Lord CC: Linus Torvalds , Chris Mason , Andrew Morton , David Rees , Linux Kernel Mailing List Subject: Re: Linux 2.6.29 References: <1238758370.32764.5.camel@think.oraclecorp.com> <49D66C0E.5090301@garzik.org> <49D7564A.9090409@rtr.ca> In-Reply-To: <49D7564A.9090409@rtr.ca> Content-Type: multipart/mixed; boundary="------------010201000302000700050800" X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.5 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3913 Lines: 89 This is a multi-part message in MIME format. --------------010201000302000700050800 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Mark Lord wrote: > Jeff Garzik wrote: >> >> I've attached 'hdparm -I' in case anyone is curious. It's from >> newegg.com, so nothing NDA'd or sekrit. >> >> ATA device, with non-removable media >> Model Number: G.SKILL 128GB SSD >> Serial Number: MK0108480A545003B Firmware Revision: >> 02.10104 >> Standards: >> Used: ATA/ATAPI-7 T13 1532D revision 4a Supported: 8 7 6 5 & >> some of 8 >> Configuration: >> Logical max current >> cylinders 16383 16383 >> heads 16 16 >> sectors/track 63 63 >> -- >> CHS current addressable sectors: 16514064 >> LBA user addressable sectors: 250445824 >> device size with M = 1024*1024: 122288 MBytes >> device size with M = 1000*1000: 128228 MBytes (128 GB) > .. > > That's odd. I kind of expected to see the sector size, > cache size, and perhaps media rotation rate reported there.. > Can you update your hdparm (sourceforge) and repost? > > There might be other useful features of that drive, > which some of us are quite curious to know about! :) Here's output of hdparm 9.12, from Fedora rawhide. I was unaware that both read-ahead and writeback caching were disabling on this drive, until that was pointed out to me in email. huh. I'll have to redo my tests... Jeff --------------010201000302000700050800 Content-Type: text/plain; name="ssd-hdparm.txt" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="ssd-hdparm.txt" Ci9kZXYvc2RiOgoKQVRBIGRldmljZSwgd2l0aCBub24tcmVtb3ZhYmxlIG1lZGlhCglNb2Rl bCBOdW1iZXI6ICAgICAgIEcuU0tJTEwgMTI4R0IgU1NEICAgICAgICAgICAgICAgICAgICAg ICAKCVNlcmlhbCBOdW1iZXI6ICAgICAgTUswMTA4NDgwQTU0NTAwM0IgICAKCUZpcm13YXJl IFJldmlzaW9uOiAgMDIuMTAxMDQKU3RhbmRhcmRzOgoJVXNlZDogQVRBL0FUQVBJLTcgVDEz IDE1MzJEIHJldmlzaW9uIDRhIAoJU3VwcG9ydGVkOiA4IDcgNiA1ICYgc29tZSBvZiA4CkNv bmZpZ3VyYXRpb246CglMb2dpY2FsCQltYXgJY3VycmVudAoJY3lsaW5kZXJzCTE2MzgzCTE2 MzgzCgloZWFkcwkJMTYJMTYKCXNlY3RvcnMvdHJhY2sJNjMJNjMKCS0tCglDSFMgY3VycmVu dCBhZGRyZXNzYWJsZSBzZWN0b3JzOiAgIDE2NTE0MDY0CglMQkEgICAgdXNlciBhZGRyZXNz YWJsZSBzZWN0b3JzOiAgMjUwNDQ1ODI0CglMb2dpY2FsL1BoeXNpY2FsIFNlY3RvciBzaXpl OiAgICAgICAgICAgNTEyIGJ5dGVzCglkZXZpY2Ugc2l6ZSB3aXRoIE0gPSAxMDI0KjEwMjQ6 ICAgICAgMTIyMjg4IE1CeXRlcwoJZGV2aWNlIHNpemUgd2l0aCBNID0gMTAwMCoxMDAwOiAg ICAgIDEyODIyOCBNQnl0ZXMgKDEyOCBHQikKCWNhY2hlL2J1ZmZlciBzaXplICA9IHVua25v d24KQ2FwYWJpbGl0aWVzOgoJTEJBLCBJT1JEWShjYW4gYmUgZGlzYWJsZWQpCglTdGFuZGJ5 IHRpbWVyIHZhbHVlczogc3BlYydkIGJ5IFN0YW5kYXJkLCBubyBkZXZpY2Ugc3BlY2lmaWMg bWluaW11bQoJUi9XIG11bHRpcGxlIHNlY3RvciB0cmFuc2ZlcjogTWF4ID0gMQlDdXJyZW50 ID0gPwoJUmVjb21tZW5kZWQgYWNvdXN0aWMgbWFuYWdlbWVudCB2YWx1ZTogMTI4LCBjdXJy ZW50IHZhbHVlOiAyNTQKCURNQTogbWRtYTAgbWRtYTEgbWRtYTIgdWRtYTAgdWRtYTEgdWRt YTIgdWRtYTMgdWRtYTQgKnVkbWE1IAoJICAgICBDeWNsZSB0aW1lOiBtaW49MTIwbnMgcmVj b21tZW5kZWQ9MTIwbnMKCVBJTzogcGlvMCBwaW8xIHBpbzIgcGlvMyBwaW80IAoJICAgICBD eWNsZSB0aW1lOiBubyBmbG93IGNvbnRyb2w9MTIwbnMgIElPUkRZIGZsb3cgY29udHJvbD0x MjBucwpDb21tYW5kcy9mZWF0dXJlczoKCUVuYWJsZWQJU3VwcG9ydGVkOgoJICAgKglTTUFS VCBmZWF0dXJlIHNldAoJICAgKglQb3dlciBNYW5hZ2VtZW50IGZlYXR1cmUgc2V0CgkgICAq CVdyaXRlIGNhY2hlCgkgICAgCUxvb2stYWhlYWQKCSAgICoJTWFuZGF0b3J5IEZMVVNIX0NB Q0hFCgkgICAqCUdlbjEgc2lnbmFsaW5nIHNwZWVkICgxLjVHYi9zKQoJICAgKglHZW4yIHNp Z25hbGluZyBzcGVlZCAoMy4wR2IvcykKCSAgICoJSG9zdC1pbml0aWF0ZWQgaW50ZXJmYWNl IHBvd2VyIG1hbmFnZW1lbnQKCSAgICoJUGh5IGV2ZW50IGNvdW50ZXJzCkNoZWNrc3VtOiBj b3JyZWN0Cg== --------------010201000302000700050800-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/