> Good point. You might also try running a shorter version of the loop > (100 iterations rather than 10000) using /bin/true rather than just > true. I expect the performance difference to be even more dramatic.
It was a factor of 100 - see response on other thread branch. >> I also noticed that running "echo hi | c:\cygwin\bin\wc -l" just from cmd >> seems to pause for a second or so. So perhaps I have just a problem starting >> processes quickly in Vista. > Your example here uses a pipe to wc. It's remotely possible that > something could be interfering with the pipe. I suppose another test > you could run is a comparison of starting up cmd.exe on various Windows > systems. If starting cmd.exe on your laptop takes significantly longer > than elsewhere, it would seem that you have other issues confounding > your use of Cygwin. Actually just running c:\cygwin\bin\true from cmd was instructive. It does pause noticeably. Then I tried c:\cygwin\bin\time c:\cygwin\bin\true and it gives me the following: 0.14user 0.20system 0:00.53elapsed 63%CPU (0avgtext+0avgdata 809216maxresident)k So basically half a second to run "/bin/true". Now I am more convinced this is a sad, sad Vista/laptop issue. If anyone knows how to speed up Vista process start let me know... if I find out I will also post it, since I think many unresolved performance complaints on this forum may be caused by the same issue. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
