PureBytes Links
Trading Reference Links
|
You are not using the UMDS version of DynaStore.
There is a crucial difference between DynaStore for UMDS and the version
you are using for Quote.com. DynaStore for UMDS has to use the UsDDE
utility included with UMDS. Typically, a stock like INTC will collect
around 22k ticks in a day using UMDS and UsDDE with TS4, while BMI cable
will collect around 120k ticks with TS4. Yes, that's six times as many
ticks from BMI cable. Meanwhile, on a typical day, TS2Ki running directly
from DTN collects around 266k quotes (over twice what BMI cable/TS4
collects).
Dmitri told me the smaller number of ticks using TS4 with DynaStore happens
because the UsDDE server posts the updates once per second, and, if some
stock has several ticks in a second (like INTC for example), DynaStore will
receive only the latest. Dmitri is working on a new version for UMDS that
will not need the UsDDE server, but meanwhile, collecting a fraction of the
actual ticks does not instill confidence in systems used for trading.
Has nothing to do with Comstock.
>>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.
|