Testers needed: New passwd/group handling in Cygwin

Andrey Repin anrdaemon@yandex.ru
Mon Mar 3 14:50:00 GMT 2014

Greetings, Corinna Vinschen!

>> > I've just uploaded a new snapshot to http://cygwin.com/snapshots/
>> I've sent a reply with testing details, but it may have been caught by SPAM
>> deflection for "excess use of foreign language".
>> Please disregard this notification, if a message will finally come through.
>> > Please try it out.  Average timings from your environment (process
>> > startup, and calling `id') would be nice.
>> Oh, and I thought of a way to test only invocation times.
>> I ran /bin/true alot...
>> db_cache: no
>> Timer 2  Elapsed: 0:00:00,75
>> Stable (+-0.2 regardless of current credentials.)
>> db_cache: yes
>> Timer 2  Elapsed: 0:00:00,85 (current user)
>> Timer 2  Elapsed: 0:00:00,75 (different user)
>> Unstable results. (I.e. vary by ~.10 in both cases.)
>> Default caching settings.
>> Timer 2  Elapsed: 0:00:01,15
>> Unstable results. (I.e. vary by ~.15 or more in all cases.)

> So the process start takes 0.3 secs extra for you.  Is that feasible?
> Would you rather keep the new "db_cache" setting as an option?  What
> do you think is the best default, objectively spoken?

I could never notice it. And it's not 0.3 sec, it's closer to 0.005sec (the
cycle was run about sixty times, so, divide approptely)
I'd need to test it in domain environment, but I don't have access to one with
Cygwin installed right now. Or, perhaps, I do?... let me check something.

In the meantime, I see my previous mail was indeed caught in the middle. I'll
repost it with a link to test results.

Andrey Repin (anrdaemon@yandex.ru) 03.03.2014, <18:41>

Sorry for my terrible english...

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