Subject:
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Re: Desktops with SCSI RAM?
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Fri, 26 May 2000 01:40:31 GMT
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Viewed:
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113 times
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This is a result of the Number One difference between IDE/UDMA and SCSI; IDE
'borrows' number-crunching from the system processor (thus affecting processor
load and responsiveness), whereas SCSI has all the number-crunching built into
the controller (lightening the load on the processor in drive-intensive
applications).
I believe that this is the reason SCSI is a better drive interface solution
for many gamers. UDMA and ATA66 might have equal to or better throughput than
Ultra2Wide and LVD SCSI, but you don't get the processor hit from SCSI that
could mean the difference between getting fragged and dodging.
-Cheese
In lugnet.off-topic.geek, Matthew Miller writes:
> Selçuk Göre <ssgore@superonline.com> wrote:
> > Performance increase is not worth the price paid I think, especially in
> > these days of light speed EIDE/UDMA2 drives.
>
> Depends what you're doing and how much you really care about performance.
>
> My friend Paul and I both have Linux systems that get backed up over the
> network by our Operations group. They're mostly identical systems, but
> Paul's is all IDE and mine is all SCSI. Normally, backups happen in the
> middle of the night, but sometimes they're late completing and run into the
> morning. At these times, Paul's system is completely unusable, with system
> load as high as 10 or 12. By contrast, mine doesn't get higher than 0.33.
> (System load is a rough measure of demand for CPU time. "1" means full
> demand for one CPU. These are both single-processor boxes -- Paul's is
> overloaded by the disk-intensive backup job by 10x.)
>
> --
> Matthew Miller ---> mattdm@mattdm.org
> Quotes 'R' Us ---> http://quotes-r-us.org/
> Boston University Linux ---> http://linux.bu.edu/
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Message has 2 Replies:
 | | Re: Desktops with SCSI RAM?
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| (...) Maybe if you're gaming on a crappy machine. I love these "SCSI vs IDE" talks. I own and use systems with both. The _only_ times I notice the differences are when I'm copying gigantic amounts of data from one drive to another. And I mean (...) (24 years ago, 26-May-00, to lugnet.off-topic.geek)
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Message is in Reply To:
| | Re: Desktops with SCSI RAM?
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| (...) Depends what you're doing and how much you really care about performance. My friend Paul and I both have Linux systems that get backed up over the network by our Operations group. They're mostly identical systems, but Paul's is all IDE and (...) (24 years ago, 25-May-00, to lugnet.off-topic.geek)
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