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bug#21804: 25.0.50; file-notify-tests failure on Cygwin

From: Michael Albinus
Subject: bug#21804: 25.0.50; file-notify-tests failure on Cygwin
Date: Tue, 27 Dec 2016 19:35:42 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux)

Ken Brown <address@hidden> writes:

> Hi again Michael,

Hi Ken,

>> Maybe we need to determine the polling interval, and to set
>> file-notify--test-read-event-timeout larger than that. Will check,
>> whether information this could be retrieved from gfilenotify.
> Isn't the polling interval set to 100 msec by the following line in
> gfilenotify.c?
>   g_file_monitor_set_rate_limit (monitor, 100);

Yes. IIRC, I did that, because there were problems with gfilenotify on
GNU/Linux otherwise.

> By the way, I tried removing that line and using the default polling
> interval, and it seemed (subjectively) to work better, i.e., the wait
> time for a `created' event in an interactive session appeared to be
> 2-3 
> seconds instead of 5-6 seconds.  But this doesn't seem to be
> consistent enough to allow me to substantially reduce
> file-notify--test-read-event-timeout.

Good to know, thanks. I'm reading glib's sources now, in order to
understand how the polling works exactly.

Btw, which version of glib do you use for your tests?

> Best regards,
> Ken

Best regards, Michael.

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