Archived from groups: alt.comp.periphs.mainboard.asus (
More info?)
NoNoBadDog! wrote:
> "Rob" <removethisbitgramsci@btinternet.com> wrote in message
> news:d7avpq$kj9$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com...
>
>>NoNoBadDog! wrote:
>>
>>>"Rob" <removethisbitgramsci@btinternet.com> wrote in message
>>>news:d79ion$3n4$1@nwrdmz01.dmz.ncs.ea.ibs-infra.bt.com...
>>>
>>>
>>>>NoNoBadDog! wrote:
>>>>
>>>>
>>>>>The fault in your logic comes in assuming that what you are looking for
>>>>>is going to be in memory. When accessing data that is randomly placed
>>>>>on
>>>>>the disks in a harddrive, NCQ can access that data faster and transfer
>>>>>it
>>>>>to memory (or the FSB). Getting the data faster from the disk is what
>>>>>makes NCQ faster. Your reply talks about where the data is *AFTER* it
>>>>>is
>>>>>read from the disc. Memory is faster, but the information has to be
>>>>>read
>>>>
>>>>>from the disc first...and NCQ is faster.
>>>>
>>>>>You seem to imply that as memory gets cheaper, data will just magically
>>>>>appear there and not have to be read from the disc. I assure you that
>>>>>even if memory were free, the data that is placed in memory must come
>>>>
>>>>>from the hard drive. Your logic does not hold up. Hard drives have
>>>>
>>>>>always been slower than memory, which is why platter speed, cache,
>>>>>access
>>>>>and seek times, latency, spin up and spin down, areal density and other
>>>>>factors have been manipulated to increase data access and throughput.
>>>>>
>>>>>Bobby
>>>>>
>>>>>"Mark A" <nobody@nowhere.com> wrote in message
>>>>>news
😱uidnakC9KIcsAXfRVn-tw@comcast.com...
>>>>>
>>>>>
>>>>>
>>>>>>"NoNoBadDog!" <no_spam_bsledge@verizon.com> wrote in message
>>>>>>news:2QVle.5550$3u3.4327@trnddc07...
>>>>>>
>>>>>>
>>>>>>
>>>>>>>NCQ enabled motherboards allow the data to be pulled from the drives
>>>>>>>in
>>>>>>>a
>>>>>>>non-sequential read, boosting speed *consistently*. While Raptors can
>>>>>>>be
>>>>>>>faster in *BURST* modes, the NCQ is a real time, all the time benefit
>>>>>>>that
>>>>>>>will enhance throughput *all the time*. a 7200 RPM NCQ drive will
>>>>>>>outperform a 10,000 RPM Raptor in sustained usage, which means that in
>>>>>>>the
>>>>>>>long run it will be faster...particularly for gaming, video and audio.
>>>>>>>
>>>>>>>Despite what the Raptor "fanboys" will shout, the tests verify that
>>>>>>>overall
>>>>>>>NCQ beat the Raptor.
>>>>>>>
>>>>>>>Bobby
>>>>>>>
>>>>>>
>>>>>>Memory beats disk access all the time, and as memory gets cheaper, more
>>>>>>stuff is cached in memory, making synchronous disk access speed less
>>>>>>important. About the only time you see disk speed making a big
>>>>>>difference
>>>>>>is when a program is first loaded, which doesn't take very long in most
>>>>>>cases.
>>>>>>
>>>>>
>>>>I'd tend to agree with the RAM argument. Super-fast disks come into their
>>>>own on server apps and throwing huge video files around, but for most
>>>>other uses anything above 7200 SATAs represents a large diminishing
>>>>return. Speaking as a user of a Mac Mini (4200, 1Gb RAM) and a PC (7200
>>>>SATA, 1Gb RAM).
>>>>
>>>>Rob
>>>
>>>
>>>Rob;
>>>
>>> What you fail to realize is that the data just does not magically
>>>appear
>>>in RAM from out of the blue. The data has to be read from the drive.
>>>Caching, prefetching, long branch predictions...but the data originally
>>>reside *ON THE HARD DRIVE*. RAM is faster. I don't dispute that. What
>>>I
>>>wish you and the others to understand is that NCQ allows faster
>>>*SUSTAINED*
>>>data transfer, thus giving data to the RAM faster. If you have a file on
>>>the HDD, your RAM cannot just "make it up". It has to access the data on
>>>the HDD. Because NCQ allows out of order execution, it is significantly
>>>faster than any standard IDE device (UDMA), and is also faster than the
>>>Raptors in sustained read, which is what most reads from the HDD are.
>>>Before data can be allocated to RAM, it has to come from *SOMEWHERE*; it
>>>just does not magically appear from the ether. Because NCQ is
>>>non-sequential, allows faster *SUSTAINED* access to data on the HDD, and
>>>with today's faster data buses yielding much faster throughput, NCQ is a
>>>clear winner.
>>>
>>>I never disputed RAM is faster. But the data in the RAM comes from
>>>somewhere...
>>>
>>>Do you understand? Can you comprehend? RAM it not psychic. It is not
>>>clairvoyant. It gets its data from elsewhere. It releases the data it
>>>has
>>>when it is asked. Simple. Elegant. But the date comes from somewhere
>>>*OUTSIDE* the RAM.
>>>
>>>I cannot make it any simpler. If you cannot make the connection, I am
>>>sorry. It is your loss, not mine.
>>>
>>>Bobby
>>>
>>>
>>
>>Yes, thanks Bobby, I do understand that data originates from the HD, and
>>that moving it to RAM is an issue if the HD is slow. My point was that,
>>for most users, there's little between HDs that would make RAID or NCQ
>>worthwhile (hence 'diminishing returns'), and a move from (say) 512 to 1Gb
>>of RAM would be wiser.
>>
>>I accept that a faster HD will result in faster opening of programmes for
>>example - but it's such a small amount of time difference I, for one,
>>wouldn't consider it a limitation.
>>
>>Now, if you're talking about throwing around 1Gb video files, or access
>>from 300 users on a network, then yes, I'm with you. Just out of
>>interest - where do you notice the best improvements in use (not
>>benchmarks!)?
>>
>>Rob
>
>
> I notice it in several areas...as you mentioned, when I am working with
> video files, there is a dramatic difference.
> Also, when I am working with multiple files under Microsoft Office (with
> nested tables, relational DB, etc), since the data is being moved and
> updated in several locations simultaneously, I noticed a marked improvements
> Such as when file in Excel must update a file in PowerPoint). Also, when
> streaming audio, my CPU usage is lower because the NCQ controller handles
> the disk reading...nice benefit.
> My whole intention in this thread was to impress upon readers that in
> everyday use, NCQ was better than Raptors...it gives an increase across the
> board in routine usage. I do not dispute that in certain scenarios that
> Raptors might be a better choice, but since NCQ drives are cheaper, more
> reliable, and in most real world applications faster, then they are clearly
> the better choice. Why spend the money on Raptors when most of us would not
> really place enough demand on them to warrant the cost. NCQ gives its
> benefits all the time (sort of like Hypertransport, if you can understand
> the analogy).
>
> Bobby
>
>
Fair enough - I'll certainly look into NCQ on the back of what you say
come next upgrade.
Rob