On 25/11/2011 10:47 AM, Spiro Trikaliotis wrote:
Hello,
* On Thu, Nov 24, 2011 at 07:59:58PM -0500 Ryan Johnson wrote:
Lately I've noticed that running make -j4 on my quad-core win7-x64
machine causes it to become sluggish or even unresponsive.
I have seen very similar effects on my Win7-64 box. I can force the
problem here just be running "ccrypt", though, I do not need to use "make
-j4".
I assume it has to do with the Windows 64 bit problems of Cygwin (search
the ML archives for that).
For me, this is the first machine since years where I do not use Cygwin
because of this issue.
Update: I hit the problem again, this time running python, and the
problem is repeatable with the native 64-bit windows python interpreter.
It looks like cygwin doesn't cause the problem, but rather my high-cpu
tasks tend to run under cygwin. Honestly, I wouldn't expect cygwin to be
the cause, given that it's a user space only piece of software!
Now what other entity could be the cause, I haven't a clue... process
explorer doesn't show anything. Maybe that's because it's frozen along
with the rest of the world during these episodes; right as it comes back
I see context switch deltas above 100k for the interrupt/DPC module,
which suggests I've got a wonky driver somewhere.
Ryan
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