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Not all versions of Dynastore use the USDDE. The version for DTN satellite
does use the USDDE. The version for Q Feed does not. The "older" version
of UMDS application guide specifies a 1 second interval for the USDDE. The
newer version apparantly captures all the ticks but still dumps them in a
burst at update time(need someone with an system programmer guide to clear
that up). Even the Dynastore programmer acknowledges the USDDE is a tick
sink and he has been promising an API version of UMDS/Dynastore/GS/TS2k for
6 months now. Keeps saying it will be available next week. Tick loss is
also verified by comparing ES tick counts through
dtn/umds/usdde/dynastore/gs/ts versus dtn/gs/ts. The USDDE is the culprit.
BobR
----- Original Message -----
From: "M. Simms" <prosys@xxxxxxxxxxxxxxxx>
To: <ribau@xxxxxxxxxxx>; <omega-list@xxxxxxxxxx>
Sent: Thursday, December 21, 2000 8:21 PM
Subject: RE: Re[2]: DTN prices
> Who told you Dynastore updates the GLobal Server *ONLY* once per second
???
> I believe both Dynastore and Dynaloader are multi-threaded by design which
> would permit high volume thruput on a reasonably fast machine. ALso, the
> current bar jiggles up and down at a rate faster than once per second as
> further proof.
>
> Also: DSL and Cable connections are about 5 TIMES faster than the pipes
that
> are actually delivering the real-time quotes thru the ISP Comstock which
> currently has a bandwidth limitation of 128kbps....which is puny.
>
> Comstock, the wholesale data provider is the real culprit, not Quote.com's
> server farm.....
> They are supposedly moving to 384kbps bandwidth.....but that has been
> delayed over 2 months now.
>
> > -----Original Message-----
> > From: ribau@xxxxxxxxxxx [mailto:ribau@xxxxxxxxxxx]
> > Sent: Thursday, December 21, 2000 2:26 PM
> > To: omega-list@xxxxxxxxxx
> > Subject: Re: Re[2]: DTN prices
> >
> >
> > Of course, I'd prefer to keep using TS4, but the problem is getting real
> > time data into it after BMI cable is discontinued. I tried the UMDS
> > DynaStore combination with DTN, but since DynaStore uses the DDE
> > Server, it
> > only updates prices once per second rendering it dangerous to use with
> > systems on high volume equities. The internet is too unreliable to use
the
> > QuoteCom version of DynaStore, even with an "always on" DSL connection.
> >
> > >>Hello ribau,
> > >>
> > >>rather down grade to ts4 !
> > >>
> > >>rpn> Geez, Mark, then should i just upgrade to TradeStation.com?
> > >>rpn> ROTFL !!
> >
>
>
>
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