Greetings, Corinna Vinschen! >> > 1 second? That sounds still a bit slow. Considering that I'm now >> > member of 414 groups, and you are member of 440 groups, the extra number >> > of groups cannot account for that. >> > >> > This sounds surprisingly as if the >> > names of some of your groups are not cached on your machine. Or >> > something. Or is this a rather slow machine?!? >> >> It's not a slow machine by any means, but it certainly gets its fair share >> of security policies, so it may have something to do with that. I don't >> know. >> >> > Still, it seems like the right thing to do to drop the group name >> > configuration stuff entirely. >> >> Yes (unless you'd want to make it configurable like the getpwent stuff).
> Nah, not really. As I said, I'm questioning some of the old functionality > anyway, and the less we have to ask AD the better for us. > I applied my patch which removes this group name change facility from AD > and uploaded a new snapshot to http://cygwin.com/snapshots/. > While we're at it, I just had this weird idea. > What if, as soon as the first Cygwin process in a process tree starts, > this process not only caches the primary group info, but also caches all > supplementary groups from the user's token? This would slow down > startup of the first process slightly, but it would speed up any > subsequent request for group information of a group in the user's token. > An `id' call would be almost instant, and `ls' calls would probably be > faster as well. Umhm. I'd have to see, how slightly. Because my primary use of Cygwin tools does not expect to have a parent Cygwin process. (I.e. diff'ing between file manager panels.) > As always, there's a trade-off: Users running cygwin processes from CMD > a lot would encounter a slowdown. > What do you think, guys? Needs some tests. I would certainly appreciate faster initial startups, but if the delay is manageable, I can cope with more long-term friendly approach. I've got entangled in current work and lost track of snapshots for now. If there's some DEF's in library, that I can toggle and rebuild it with certain features enabled and disable for local test, I'd be glad to have a round at it over weekend. -- WBR, Andrey Repin (anrdae...@yandex.ru) 28.02.2014, <03:06> Sorry for my terrible english... -- 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
