Re: Would a 2nd processor really be a waste of time???? help
From: Brian Lavender (brian_at_brie.com)
Date: 07/18/03
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Date: Fri, 18 Jul 2003 13:17:53 -0700
On Wed, 16 Jul 2003 17:18:03 +1200, "Lee and Nadine"
<lee.nadine@xtra.co.nz> wrote:
>We are looking at different aspects on what to do about our older unix sco
>5.5 server that tends to run slow at times (333mhz with 196 meg ram). using
>cpqmon it shows the CPU "2 sec avg" the "10 sec avg" and the "20 sec avg" as
>maxxed out when things run slow. One idea was to buy another processor and
>more ram, however this is what one supplier has told us - see below. I have
>no idea if what he is saying is correct of if hes trying to drum up more
>sales. Some ideas on what he wrote would be greatly appreciated.
>
>As quickly discussed on the phone today the server is dual processor
>capable.
>
>Your server has only 1 processor.
>
>Memory is not an issue unless the system is swapping , if this was the case
>on your system you would not be able to login.
>
>Your system is not swapping and so is not the cause of the slow system.
>
>The server is only 333 MHz, what would a 5 year old 333 MHz PC with 75 users
>logged in run like?
>
>The Unix system takes full advantage of Symmetric Multi Processing when the
>SMP license is installed.
>
>The only advantage of this would be seen when the system as it stands gets
>processor bound and slows down , with dual processors the load is shared and
>this processor bound state takes a little longer to occur .
>
>A second processor does not speed up a server but shares load at current
>processor speed. i.e. 333Mhz
>
>It should be noted that even with a second processor the system may become
>processor bound very quickly.
>
>Estimated Pricing:
>
>SCO Unix SMP License
>$2,900
>
>Second 333 MHz Processor [ subject to availability]
>$1,000
Jeez. I just had a system built for my current project, and the
_total_ box cost me $1400. It's an Athlon XP 1.533 GHz with 512 Mb DDR
ECC RAM and a 120 Gbyte hard drive. I got it from Xi Computer
(http://www.xicomputer.com). It came with RH 9 installed. I got the
box with the cheapest Nvidia card, since OSR 5.0.7 doesn't seem to
support that many video cards. I also had them put in an Inter
EtherExpress PRO, since SCO is particular about the NIC's as well.
brian
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