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One day is fine IF you live a lifestyle that permits you to
connect every day, which many users do not. The option of having a
backfill period as long as the broker will allow is a good thing. But I
can see your point if you are on top of it every day.
Brian
thanks for addressing this. For me, having the option of
easily changing
Backfill RTQ to 1 day, and Backfill Current to 5 days does
the trick.
Normally i would think folks only need Backfill RTQ 1 day,
yesterday plus
from 00:01 today which depending could be almost 2 days, which
appears the
way you have it now---i got 5 full days and today with a new
symbol. i log
off at market NYSE close 1315 and log back on in morning
1000. When set to
1 day Backfill all RTQ, i would like yesterday, and
today to current time.
I am on a dial-up phone line, and really do not find
the backfill times
excessive..
Hopefully others will state an
opinion.
It's always tough when you rely on others to do the best they
can
do---except you of course---you always
do.
ron
-----Original Message-----
From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On
Behalf Of
Tomasz Janeczko
Sent: Tuesday, October 18, 2005 3:43 PM
To:
amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: New Interactive
Brokers plugin (1.4.3)
Hello,
Out of frustration caused by
these long backfill times I have included
a couple of high-resolution timers
to get timing profile of various parts
of the plugin. The plugin timings were
great, but... to my surprise
- speed limiting factor is the TWS API
implementation that uses
one-character-at-time unbuffered socket
reading.
I expect getting some serious speed increase using custom code.
A
very sad thing in that is that one can not rely on other's people code
(TWS
API) and everything needs to be rewritten to get optimum speed.
Best
regards,
Tomasz Janeczko
amibroker.com
----- Original Message
-----
From: "ronbo" <ronbo@xxxxxxxxxxxxxx>
To:
<amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, October 18, 2005 9:59
PM
Subject: RE: [amibroker] Re: New Interactive Brokers plugin
(1.4.3)
> Thanks--TJ. my times are longer than
twice.... i'm using 10 symbols.
you
> are also backfilling from a
European server, i'm in the US, so a different
> server and time of day
may make a difference.
>
> Another funny thing i noticed with 1.43
just a few minutes ago. qmx5 is
> about to expire so i added a new
symbol, qmz5. i did a backfill using
1.42
> and got 2 days of
data. i closed AB and copied 1.43 to the plug-in
folder,
> did a
backfill current and it just updated from the time i had closed AB
> while
copying over IB.dll 1.43. i deleted qmz5, and then created it over
>
with new symbol, did a backfill current and now i get 5 previous days
plus
> today.
>
> Does the backfill only fill 5 days if it is
a new (empty) symbol? or is
the
> problem that it won't backfill
a symbol which was created with a previous
> version of IB.dll? or
is it something else?
>
> ron
>
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