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From: Celejar on 1 Jul 2010 20:00 On Thu, 1 Jul 2010 17:47:57 -0600 Paul E Condon <pecondon(a)mesanetworks.net> wrote: .... > I'm lurking here, hoping to learn useful stuff about hard drive > software... What is NCQ? (in this context, of course) What is http://en.wikipedia.org/wiki/Native_Command_Queuing Celejar -- foffl.sourceforge.net - Feeds OFFLine, an offline RSS/Atom aggregator mailmin.sourceforge.net - remote access via secure (OpenPGP) email ssuds.sourceforge.net - A Simple Sudoku Solver and Generator -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100701195655.d1452e8a.celejar(a)gmail.com
From: Stan Hoeppner on 2 Jul 2010 11:00 Paul E Condon put forth on 7/1/2010 6:47 PM: > I'm lurking here, hoping to learn useful stuff about hard drive > software... What is NCQ? (in this context, of course) What is > "ATA_NCQ_HORKAGE list"? The only hit that I get on this string in Google > is a link to this email to which I am responding. TIA I probably mistyped it Paul. Let's see... It's actually "ATA_HORKAGE_NONCQ". Google that. -- Stan -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C2DFEAF.3090407(a)hardwarefreak.com
From: Henrique de Moraes Holschuh on 2 Jul 2010 22:30 On Fri, 02 Jul 2010, Stan Hoeppner wrote: > > software... What is NCQ? (in this context, of course) What is A way to have various requests "in flight" and let the disk itself order them to get "better" performance. Whether it helps performance or not depends on the IO workload, the kind of device, and the quality of the NCQ firmware in the device. > > "ATA_NCQ_HORKAGE list"? The only hit that I get on this string in Google It is a blacklist for defective products that misbehave when NCQ is enabled, or which have such a poor excuse of an NCQ implementation that one should never enable it. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100703022410.GC20929(a)khazad-dum.debian.net
From: Stan Hoeppner on 3 Jul 2010 01:00 Henrique de Moraes Holschuh put forth on 7/2/2010 9:24 PM: > On Fri, 02 Jul 2010, Stan Hoeppner wrote: >>> software... What is NCQ? (in this context, of course) What is > > A way to have various requests "in flight" and let the disk itself order > them to get "better" performance. Whether it helps performance or not > depends on the IO workload, the kind of device, and the quality of the NCQ > firmware in the device. > >>> "ATA_NCQ_HORKAGE list"? The only hit that I get on this string in Google > > It is a blacklist for defective products that misbehave when NCQ is > enabled, or which have such a poor excuse of an NCQ implementation that one > should never enable it. You mangled your quoting. I didn't ask these questions, another OP did. I answered them. Or, at least, someone else answered the first and I answered the second. And again, it's not "ATA_NCQ_HORKAGE" but rather "ATA_HORKAGE_NONCQ". No real foul. I'm just correcting the record for the various archives. -- Stan -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C2EC329.6080000(a)hardwarefreak.com
From: Paul E Condon on 4 Jul 2010 11:10
On 20100702_235713, Stan Hoeppner wrote: > Henrique de Moraes Holschuh put forth on 7/2/2010 9:24 PM: > > On Fri, 02 Jul 2010, Stan Hoeppner wrote: > >>> software... What is NCQ? (in this context, of course) What is > > > > A way to have various requests "in flight" and let the disk itself order > > them to get "better" performance. Whether it helps performance or not > > depends on the IO workload, the kind of device, and the quality of the NCQ > > firmware in the device. > > > >>> "ATA_NCQ_HORKAGE list"? The only hit that I get on this string in Google I was involved in this confusion at an earlier stage. I'm still confused: What, exactly, do I type into Google to gain a URL of this resource? Does it REALLY involve HORKAGE with an "H"? And underscores? Presumably this is a well know resource. But only to those who already know, and not to me. TIA > > > > It is a blacklist for defective products that misbehave when NCQ is > > enabled, or which have such a poor excuse of an NCQ implementation that one > > should never enable it. > > > You mangled your quoting. I didn't ask these questions, another OP did. I > answered them. Or, at least, someone else answered the first and I answered > the second. And again, it's not "ATA_NCQ_HORKAGE" but rather > "ATA_HORKAGE_NONCQ". No real foul. I'm just correcting the record for the > various archives. > > -- > Stan > -- Paul E Condon pecondon(a)mesanetworks.net -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100704150456.GH21029(a)big.lan.gnu |