perfSONAR User Q&A and Other Discussion

[Trey Dockendorf <>]

That sounds like the right advice.  Disabling C-States and P-States should 
solve that.

You can try using tuned to change it from within the system.  If you install 
'tuned' then look at '/etc/tune-profiles/functions' the 'set_cpu_governor' 
function shows how it's done "the RedHat" way.

Less evasive change would be edit '/etc/sysconfig/cpuspeed' and set 
GOVERNOR=performance then 'service cpuspeed restart'.

- Trey

=============================

Trey Dockendorf 
Systems Analyst I 
Texas A&M University 
Academy for Advanced Telecommunications and Learning Technologies 
Phone: (979)458-2396 
Email: 

 
Jabber: 


----- Original Message -----
> From: "alex white" 
> <>
> To: "paul wisniewski" 
> <>,
>  
> 
> Cc: 
> ,
>  
> 
> Sent: Friday, July 25, 2014 10:26:33 AM
> Subject: RE: [perfsonar-user] Lockups on Dell r710s
> 
> Hi Paul,
> 
> In passing I asked one of our cluster admins here, and they said to
> make sure you've disabled any CPU sleep states in the BIOS?
> 
> Good luck,
> Alex White
> Diamond Light Source
> ________________________________________
> From: paw 
> []
> Sent: 25 July 2014 15:06
> To: 
> 
> Cc: Aaron Brown; Jason Zurawski
> Subject: [perfsonar-user] Lockups on Dell r710s
> 
> hey Perfsonar-ites,
> 
> I am just wondering if anyone has seen the type of response to the
> application from Dell platforms. (see attachment)?   The issue is
> very
> reproducible, and I have seen the same thing on this hardware
> platform
> now on v3.3.1 and v3.3.2
> 
> The chassis/setup is fairly vanilla
> 
> -dual processor/6core per processor
> - quantity two, 146GB drives mirrored
> - 8GB RAM
> 
> 
> 
> I can provide more info as needed.  Thanks in advance for any light
> that
> people can shed on this.
> 
> 
> 
> --
> Paul Wisniewski, uWIPAC
> 
> 
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