First datasocket write slow on localhost with XP SP2
Hi there,
i've got the following problem:
I use datasocket to share information between 2 labview applikations.
This applications run fine using win2k.
Now i transfered these applications to Win XP SP2.
(I found, that there is a problem with the local host adress space in win XP and installed update kb884020 from MS homepage.)
If i try to write an item for the first time, it takes several seconds to write it. (dstp://localhost/set_plc or dstp://127.0.0.1/set_plc) (several seconds for EACH item)
If i change the adress to the local IP, everything works immediately (dstp://192.168.101.73/set_plc for example)
Does someone have a similar problem? Did someone find a solution for that?
Details:
Windows XP professional SP 2 (+ kb884020)
Dell PowerEdge 1800 Dual Xeon 3.6, 2Gb RAM
no firewall installed, XP firewall disabled
No DNS server entered (there was a DNS server entered before)
Labview 7.1
Datasocket 4.3.0
Every hint is appreciated, thanks in advance
Rainer
Jochen,
thanks for your suggestions.
I allready thought about the DNS settings.
But as i mentioned, there are no entries for a DNS Server.
The IP Adress is fixed, no DHCP Server is used.
If the DNA settings are responsible for this behavior, shouldn't the adress be resolved after the first successful access of one DataSocket Item and the following accesses must be fast?
Best regards,
Rainer
P.S.: Due to the fact that i'm responsible for the PC the software is running on, there's no administrator i could ask (except myself).
Attachments:
dns.jpg 34 KB
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>
> Has anyone else ever had a problem where you had to perform 2
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>
> I have a local VI that is simply a control that writes to the
> datasocket server whenever the control value changes.(the dataitem on
> the server is permanent - its initialized and never released by the
> server)
> In the same local VI I have a datasocket read polling a different
> dataitem on the server.
> The remote machine has a VI that reads the permanent dataitem on the
> server once per second.
> For some reason, after adding the local VI mentioned above, the
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>
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