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Thread Vista
Thu, Nov 20 2008 4:30 AMPermanent Link

Roy Lambert

NLH Associates

Team Elevate Team Elevate

Are there still problems with Vista after SP1 and all the latest patches with a LAN based f/s DBISAM app? I ask because since having had my Datatank die on me and using a Vista PC as its replacement I'm getting hangs of upto 15 seconds every so often, sometimes only when trying to change records.

Roy Lambert
Thu, Nov 20 2008 1:05 PMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

Roy,

<< Are there still problems with Vista after SP1 and all the latest patches
with a LAN based f/s DBISAM app? >>

There are no issues as far as possible corruption (and AFAIK).

<< I ask because since having had my Datatank die on me and using a Vista PC
as its replacement I'm getting hangs of upto 15 seconds every so often,
sometimes only when trying to change records. >>

This could simply be the OpLocks breaking any exclusive locks (don't make me
explain it Smiley.  It should be very quick, but who knows what they might
have changed in Vista. Smiley

Does this delay only happen once per process lifetime ?  If so, then it is
most likely the breaking of any OpLocks exclusive locks.

--
Tim Young
Elevate Software
www.elevatesoft.com

Thu, Nov 20 2008 1:51 PMPermanent Link

Roy Lambert

NLH Associates

Team Elevate Team Elevate

Tim

>There are no issues as far as possible corruption (and AFAIK).


>This could simply be the OpLocks breaking any exclusive locks (don't make me
>explain it Smiley.

Since I wouldn't understand I won't, but I will ask could it set exclusive locks, then break them then reset them?

>It should be very quick, but who knows what they might
>have changed in Vista. Smiley
>
>Does this delay only happen once per process lifetime ? If so, then it is
>most likely the breaking of any OpLocks exclusive locks.

Nope. It might happen 3 times in a few minutes then not at all for several hours.

I popped a software firewall on to see if I'd acquired a nasty that my AV hadn't noticed but all traffic was over the LAN.

Roy Lambert
Fri, Nov 21 2008 12:58 PMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

Roy,

<< Since I wouldn't understand I won't, but I will ask could it set
exclusive locks, then break them then reset them? >>

It's possible that they implemented this type of functionality in the newer
SMB protocol in Vista.  The older SMB protocol did not do this, AFAIK.  Once
an exclusive op-lock was broken due to another user opening the same file,
then all of the cached data was sent over to the server from the user with
the exclusive lock, and then the file reverted to normal network performance
from that point forward.

<< Nope. It might happen 3 times in a few minutes then not at all for
several hours. >>

Does it coincide with other users logging on or accessing tables/files that
are in use by the another user ?

--
Tim Young
Elevate Software
www.elevatesoft.com

Fri, Nov 21 2008 1:13 PMPermanent Link

Roy Lambert

NLH Associates

Team Elevate Team Elevate

Tim


>Does it coincide with other users logging on or accessing tables/files that
>are in use by the another user ?

There's me and the email app sharing this LAN and since we both use the same tables its possible.

Roy Lambert
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