Corinna Vinschen corinna-cygwin@cygwin.com
Wed Feb 25 22:20:00 GMT 2015

On Feb 25 21:54, Achim Gratz wrote:
> Corinna Vinschen writes:
> > I'm still a bit confused by the results.  What "delays" are we looking
> > at if they are not attributable to LDAP?  Are they "expected" delays
> > or is that something which is new now?
> The echo test can be used as a baseline that is most likely dominated by
> LDAP responses (not entirely, since there will be a bunch of file
> lookups in there as well from the bash to the home drive, which in my
> case is remote).  The git tests on the other hand look up, stat and read
> a bunch of files on top of that and that data needs to take the full
> roundtrip several times.  I've addded those because they are more
> representative for my usual workload.
> > If it's new, is there a simple testcase we can use for further
> > debugging, preferredly one with a single executable showing a certain,
> > debuggable behaviour.  This should ideally start with an strace to
> > isolate the problem, and then we can look further.
> I don't think there is a new problem.  A few things are interesting
> (like that one network share that somehow makes the cygserver case
> slower), but I don't have anything in hand that would permit debugging
> and it will be hard to isolate it down to Cygwin anyway since there is
> quite a bit of Windows code involved in all that.
> In any case, it looks like the behaviour over long latency links is
> about back to where it was before LDAP integration at least when one
> uses cygserver for caching.

Ok, that sounds rather comforting for now.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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