[olug] Dual Athlon MP info

[Charles Bird]

Very good points Phil, thanks.

I have been looking into the applications that I plan on running, verlihub for DC I have been told offers no multithreading so only one cpu can run it, but I have been told that mysql, apache, etc can all run on the other cpu so if I somehow get like 8000+ connections coming in that vhub wont bog down the other processes...so my question is : can I define which cpu is running what?
  
And is there a simple script to run cron and check resource listings and email them to me every 12 hours?  haahaa, not really "needed" but kinda cool.

Man I cant wait, I'll be in tweaking heaven with this thing.




----- Original Message -----
From: "Phil Brutsche" <phil at brutsche.us>
To: "Omaha Linux User Group" <olug at olug.org>
Subject: Re: [olug] Dual Athlon MP info
Date: Fri, 03 Jun 2005 20:59:11 -0500

> 
> Generally speaking a dual CPU machine may need a terminator if one of
> the CPU sockets is emtpy.
> 
> Sometimes a dual CPU machine will need the appropriate voltage regulator
> for each cpu. I see this more frequently on "Tier 1" systems - 
> Dell, HP, IBM - than I do Supermicro or Tyan.
> 
> Neither of those will apply to your machine. But that's nothing compared
> to making a home-built dual CPU machine work in a 1U chassis.
> 
> Cooling can be a major issue. Do not put this configuration in a 1U
> chassis unless you have taken the appropriate steps to ensure proper
> cooling: high speed blowers to blow air across the heat sinks. You also
> need to make sure that the air will *get to* the heat sinks - that means
> your CPU sockets need to be in the right place, minimal obstruction to
> air flow, a place to mount the blowers in your chassis, etc.
> 
> Running a RAID 0+1 is a no go unless your chassis has the drive bays for
> it. I would stick with 10k RPM drives. Hope you don't need any PCI
> slots, the RAID controller will take the only slot you'll be able to use.
> 
> I hate to sound negative, but that's what I ran into the last time I
> tried to build my own rackmount box. If I ever have to do it again I'll
> get something pre-assembled yet high quality - like Supermicro - or
> splurge and get a HP, Dell, or IBM server.
> 
> Charles Bird wrote:
> > I've neva tuned a dual cpu machine before, is there anything I 
> > need to know thats really differnt than a single machine?   I 
> > intend on putting in atleast 1 more GB of ram before i send her 
> > off into the unknown. Thx in advance.
> 
> -- Phil Brutsche
> phil at brutsche.us
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> OLUG at olug.org
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