Michael Ludwig schrieb am 30.10.2010 um 15:55 (+0200): > Michael Ludwig schrieb am 07.10.2010 um 00:27 (+0200): > > SZABÓ Gergely schrieb am 06.10.2010 um 23:30 (+0200): > > > > > > please see this thread (test scripts included): > > > http://cygwin.com/ml/cygwin/2010-09/msg00871.html > > > > Thanks, Gabor - I saw your thread, which reinforces my belief that it > > is a Cygwin issue. > > I don't think any more the slow process creation (fork) I'm seeing is a > Cygwin problem. A Makefile for ActiveState Perl also takes an eternity > to run. The delay appears to be caused by time-consuming process > creation. > > > > I can only confirm this. Process creation is much slower with 1.7.7 > > > than it was with 1.5.25. The "fork" script runs 300% slower on my XP > > > box. > > > > Another possibility would be a recent Microsoft update. > > > > Am I hallucinating when I think that 100% true Windows utilities like > > IPCONFIG, ROUTE and NET are also slower in launching? > > These Windows utilities also take time to launch. All processes, once > running, do *not* appear slow; they just take time to get started. > > What can I do at the Windows or Cygwin level to find the cause of this > slowdown?
Using Sysinternals procmon.exe I found out that the cause for the slowdown was a virus hooking into the CreateProcess/AppCertDlls mechanism, which, of course, I didn't know about. What could cause a process creation slowdown on Win32 and how can I determine it? http://stackoverflow.com/questions/4354445/ AppCertDlls: Process creation slowdown on Win32 caused by virus -- Michael Ludwig -- 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
