Hello,
I have been noticing extreme slowdowns in vista/2k8 64 with latest cygwin 1.5.
Fresh installation, no antivirus.
The command used to test speed is:
while (true); do date; done | uniq -c
On windows 2008 64bit:
11 Wed Sep 17 20:35:22 RDT 2008
11 Wed Sep 17 20:35:23 RDT 2008
12 Wed Sep 17 20:35:24 RDT 2008
11 Wed Sep 17 20:35:25 RDT 2008
12 Wed Sep 17 20:35:26 RDT 2008
11 Wed Sep 17 20:35:27 RDT 2008
12 Wed Sep 17 20:35:28 RDT 2008
11 Wed Sep 17 20:35:29 RDT 2008
11 Wed Sep 17 20:35:30 RDT 2008
On windows XP SP3 32bit:
51 Wed Sep 17 20:35:42 2008
50 Wed Sep 17 20:35:43 2008
50 Wed Sep 17 20:35:44 2008
51 Wed Sep 17 20:35:45 2008
50 Wed Sep 17 20:35:46 2008
51 Wed Sep 17 20:35:47 2008
48 Wed Sep 17 20:35:48 2008
50 Wed Sep 17 20:35:49 2008
50 Wed Sep 17 20:35:50 2008
I of course wont compare to linux since the situation is quite different(and
cygwin's fork
has a lot more work to do)
At first I thought it was a syswow64(windows on windows 64, the windows 32
subsystem of windows 64bit)
that was causing the issue since cygwin is 32 bit.
But then I ran the following test:
Running 200 times the 32bit cmd.exe /C exit from cygwin and from a normal 32bit
windows cmd.
To my great surprise cygwin took 14seconds, while cmd took 2.5seconds.
The only difference I can see between the two is that cygwin's fork does more
work...
But should it really be such a big difference?
Thanks for any hints,
--
Best regards,
Paul-Kenji mailto:[EMAIL PROTECTED]
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