Re: [PLUG] Jerky Behavior During I/O

["Lee H. Marzke" <lee@marzke.net>]

Have you tried with low-latency disabled for better desktop performance ?

Linux real-time performance still has bugs,  so you'll likely trade off desktop performance
with that kernel for better audio/video playback.

http://tinyurl.com/7yx9vzw

Lee


----- Original Message -----
> From: "Casey Bralla" <MailList@nerdworld.org>
> To: PLUG@lists.phillylinux.org
> Sent: Saturday, March 3, 2012 6:22:55 PM
> Subject: [PLUG] Jerky Behavior During I/O
> 
> Does anybody else have this problem?
> 
> Whenever my disk or network is doing a large data transfer, the
> desktop
> "jerks" (ie: it freezes for a very short time, then unfreezes, then
> freezes,
> unfreezes, etc)
> 
> I believe this is happening when the system is responding to a
> hardware
> interrupt for either the disk or network subsystem.
> 
> I have checked, and DMA is active on my SATA disk drive.
> 
> 
> I'm running Gentoo unstable on a 2.8 GHz AMD quad-core with 8 GBytes
> of RAM,
> so I'm not exactly underpowered.
> 
> The jerking isn't terrible, but it is somewhat annoying.  I don't
> recall ever
> having this problem with my windows machine at work.
> 
> I'm using the Gentoo "Low latency" kernel.
> 
> Does anybody else have this problem?  Anybody have a suggestion for
> trying to
> reduce the impact of hardware IRQs on a desktop?
> 
> TIA!
> --
> 
> 
> Casey Bralla
> Chief Nerd in Residence
> The NerdWorld Organization
> www.NerdWorld.org
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-- 
"Between subtle shading and the absence of light lies the nuance of iqlusion..." - Kryptos 

Lee Marzke, lee@marzke.net http://marzke.net/lee/ 
IT Consultant, VMware, VCenter, SAN storage, infrastructure, SW CM 
+1 800-393-5217 office +1 484-348-2230 fax 
+1 610-564-4932 cell sip://8003935217@4aero.com VOIP 


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