Intermittent cygwin heap allocation problem

Corinna Vinschen corinna-cygwin@cygwin.com
Wed Jan 18 16:04:00 GMT 2006


On Jan 18 10:52, Brett Serkez wrote:
> [snip]
> > > I also find the sleep(2000) in heap.cc when the mapping error is
> > > detected rather suspicious - is this to avoid a race condition with
> > > the parent?
> >
> >   Dunno, suspect it may have been something experimental.  Take a look
> >   at when it arrived in the CVS and check the associated changelog
> >   entry.
> 
> Humm....  I wonder if this is contributing the slowness I've been seeing
> during process creation....  In your opinion, is this code (sleep)
> likely to be hit often?  By any chance, how do you know how sleep is
> implemented, does it use the OS to be awakened, or does it loop?

It's Sleep, not sleep.  Sleep is the Win32 version which takes a ms
argument.  I'm not sure why it is where it is (I assume for debugging
purposes), but it doesn't hurt *at all*.  When it's hit, the next step
is to call api_fatal, which aborts the application anyway.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/



More information about the Cygwin mailing list