On Thu, Apr 18, 2002 at 06:01:55PM +0200, Corinna Vinschen wrote: >On Thu, Apr 18, 2002 at 11:52:43AM -0400, Chris Faylor wrote: >>On Thu, Apr 18, 2002 at 04:31:56PM +0100, Chris January wrote: >>>>Every now and again (every 15-30 minutes or so), my cygwin apps pause >>>>for 1-2 MINUTES.... I have written a simple script to capture this >>>>behaviour: >>> >>>Yes, I've seen this behaviour. It's something to do with file I/O >>>IIRC. 100% reproducible in a small program I have. Here's an strace >>>demonstrating the problem: >> >>From the code, the only thing here that I can see which could take any >>time is the set_security_attribute() call, which is only invoked if you >>have CYGWIN=ntsec. > >And the only thing in set_security_attribute() which could take a lot >of time is the call to LookupAccountName() which is only called if the >/etc/passwd file doesn't contain the SID for the user *and* which can >only take a lot of time if the machine is asking a DC. > >OTOH, set_security_attribute() cant have been called, otherwise it >would have left footprints in the strace output.
Oops. Good point. So much for my detective work. So the only other thing I can see is either the GetFileAttributes or the CreateFile itself. Not much we can do about either of those. cgf >>> 97 7911229 [main] base 2872 >fhandler_base::open:(C:\cygwin\opt\kde2\lib\cygkatecore.dll, 0x110000) >>>*** big long pause *** >>>11237820 19149049 [main] base 2872 fhandler_base::open: 0x19C = CreateFileA >(C:\cygwin\opt\kde2\lib\cygkatecore.dll, 0x8>0000000, 0x7, 0x22F764, 0x3, 0x2000080, >0) -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
