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Re: Slow/sluggish response ("system" task at 50%)


Edward Lam wrote:
On Wed, June 24, 2009 17:29, Larry Hall (Cygwin) wrote:
Sure, we all know that Cygwin provides Linux emulation and suffers some
overhead for it.  But timings from an individual machine can be
misleading.
Running this through multiple times for both Mingw and Cygwin 1.7 on my
similarly equipped machine, I see Cygwin is somewhere between 1.7 and 2.25
times slower.  Whether yours or my result is more typical, I can't say.
But as you noted, neither data set provides much justification for the
results reported.

Larry,


Are you on 32-bit Windows or 64-bit Windows? I've noted on this mailing
list earlier that there are large speed differences between the two. I
wonder which platform Gene is on. The tr test results are consistent on
Windows 64-bit for me.

Good point. My test was run against 32-bit Windows. Gene's cygcheck output says he's running 32-bit Windows as well.

I don't quite understand what MINGW32 is doing that makes it ~2 times
faster than cygwin.

It has to do with what it doesn't do. But I think the more interesting issue is what's making things _so_ slow in some of his builds.

--
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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