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From: Andrew Schulman <schulman DOT andrew AT epamail DOT epa DOT gov>
Subject: Re: Machine very sluggish while compiling
Date: Tue, 06 Dec 2011 12:38:35 -0500
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> Lately I've noticed that running make -j4 on my quad-core win7-x64 
> machine causes it to become sluggish or even unresponsive. For example, 
> compiling a large package makes the mouse jumpy, delays keystrokes, adds 
> stutter to my music, and makes task switching painfully slow (though, 
> oddly, if I manage to switch to the mintty that runs make the machine 
> "comes back"). The sluggishness always hits when I'm using a native 
> windows app with the compile running in the background. This starts to 
> sound oddly like the recently-reported issue where X was causing native 
> windows apps to freeze [1].

I'm glad to hear it's not just me.  I've been struggling with this for a few
months, on my WinXP SP3 (32-bit, dual-core) host.  I avoid compiling on it,
because after a few minutes CPU goes to 100% even after I exit all Cygwin
processes, and once that happens the only solution is to reboot... which I
usually do with the reset button, because by that point everything is so slow
that even rebooting takes 15 minutes.

There's no PCA or Superfetch service on my host.  I'll try shutting down other
services to see if that helps.

Andrew.


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