Re: TSVNCache, crawling network drives

On 21.09.2011 16:06, Hans-Emil Skogh wrote:
> Hi!
>
> I'm showing overlay icons on some mounted network drives. I just
> noticed that it looks like TSVNCache is periodically crawling the
> working copies on the network drive. It does this divided in chunks,
> approximately every two seconds. When all working copies have been
> crawled, it starts from the beginning again.
>
> This leads to the overlay icons in explorer flickering every two
> seconds, as the information is refreshed (even though nothing has
> changed). And of course, to some extra network traffic.
>
> Is this the intended behavior, or have I stumbled upon a bug? I
> realize that it is not trivial to keep overlays up to date on a
> network drive, but polling every two seconds feels like a slightly
> heavy handed approach. Could it be improved somehow?

I've noticed the same behavior on some network drives. From what I could
find out by debugging is that Windows receives change notifications from
those drives even though nothing has changed. Sometimes those
notifications arrive once every second for no apparent reason - not sure
how I could work around this.
My advice: don't put working copies on network drives, or don't show
overlays there.

Stefan

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