From: Ryan Johnson <ryan.johnson@cs.utoronto.ca>
To: cygwin@cygwin.com
Subject: Re: Machine very sluggish while compiling
Date: Sun, 04 Dec 2011 07:55:00 -0000 [thread overview]
Message-ID: <4EDB2761.6040508@cs.utoronto.ca> (raw)
In-Reply-To: <20111125154751.GP28395@trikaliotis.net>
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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next prev parent reply other threads:[~2011-12-04 7:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-25 4:07 Ryan Johnson
2011-11-25 4:17 ` Mike
2011-11-25 7:22 ` Ryan Johnson
2011-11-25 15:48 ` Spiro Trikaliotis
2011-12-04 7:55 ` Ryan Johnson [this message]
2011-12-04 10:07 ` Corinna Vinschen
2011-12-05 22:25 ` Ken Brown
2011-12-06 10:39 ` Corinna Vinschen
2011-12-08 11:18 ` Robert Miles
2011-12-08 13:15 ` Ryan Johnson
2011-12-04 19:29 ` Christopher Faylor
[not found] ` <4EDBD5A5.2000707@cs.utoronto.ca>
2011-12-04 20:23 ` Ryan Johnson
2011-12-06 17:39 ` Andrew Schulman
2011-12-07 5:23 ` Mike
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