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Hello,
qpFeed is completely different. The plugin is not developed by us,
but by Quotes Plus. You need to consult them for performance of their plugin.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "monitorit" <monitorit@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, November 06, 2008 12:02 AM
Subject: [amibroker] Re: "SLOW" backfill and delay with IQFeed
> Tomasz, I use qpFeed not IQfeed but have had a problem forever that
> is somewhat the same. There is NO problem when just updating a few
> symbols continuously-but- if I try to keep about 75-100 symbols
> updating, the quotes come in slower and slower. The people at the
> quote provider say they get no complaints and there is no problems
> sending out the quotes. Can you try to set up a 1 minute db with
> about 100 tickers, the layout has 5 windows all symbol-linked (1min,
> 2min, 5min, 15min and daily). Use any simple indicator with the
> price (ie 10 bar MA). Run any simple AA to cause all 100 tickers to
> update. Then see how long the symbols take to get up to date and
> more important, come back a few hours later and see the time of the
> last bar compared to the time on your clock.. has it fallen behind?
> You can just leave the original symbol displayed- no need to change
> symbols after the first change after running the AA. I know we have
> discussed this before- but I wonder if you have done my little
> experiment yourself?
> Thanks again and I remain convinced AB is the best by far.
> Dan
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
> wrote:
>>
>> It should take less. Maybe you have firewall problems.
>> I checked and it backfills with speed of about 500+ bars per
> second, so
>> backfill of 1000 bars of single symbol using IQFeed takes about 2
> seconds on my end (2mbps DSL)
>>
>> Indeed it used to be faster in the past (3 or 4 times faster from
> memory), so I guess some limits were added by IQFeed recently.
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "przemyslawuk" <przemyslawuk@xxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Wednesday, November 05, 2008 10:52 PM
>> Subject: [amibroker] Re: "SLOW" backfill and delay with IQFeed
>>
>>
>> > Tomasz, I was trying to use AB with a minimum amount of data.
>> > Currently my database settings are : 1min/1100bars/32kb per
> symbol.
>> > So, 60 symbols*32kb=1.8Mb
>> > I don't understand why intraday scan with "wait for backfil" takes
>> > almost 1 hour. I understand that there must be some additional
>> > "negotiation" -request the symbol, wait for data....etc. but even
> so
>> > it should not take that much time. I measured my connection speed
>> > using "speed meter" on 2wire.com website and it shows more than
> 1MB/s.
>> >
>> >
>> > Am I right that streaming 100 symbols is equivalent to avg
> internet
>> > transfer of about 10kb/s at the most?
>> >
>> > And, Should the backfill of 100 symbols =3.2Mb be a matter of a
> few
>> > seconds with internet speed of 1Mb/s (measured)?
>> >
>> > Windows task manager shows 38% CPU (40/60 between IQ and AB) and
> LESS
>> > than 1% internet bandwidth usage -- WHY is it not using the entire
>> > bandwidth available?????????????????
>> >
>> > Another thing I don't understand is, why with the above numbers my
>> > Core2 Duo PC is nonresponsive when watching 4 charts ??????
>> >
>> > I have a separate internet connection for AB and my trading
> platform
>> > because when I run intraday scans AB can cause other applications
>> > running on the same connection to loose the connection. And I
> have the
>> > fastest connection the money can buy in my area.
>> >
>> > I was complaining to IQFeed, we spend an hour online running tests
>> > and they say that everything looks ok.
>> >
>> > I saw posts from other AB users claiming that they have 8 charts
> on
>> > the screen on a PC two generations older than mine. I was wonder
> how
>> > do they manage to trade.
>> > It is my 3rd PC and I always get the same problems. I am not
>> > complaining here about AB because it is still the best program in
> my
>> > opinion, but I have never seen anyone else using it, so I try to
> get
>> > some feedback whether I just complain about things not knowing
> that it
>> > is the way they should be.
>> >
>> > Could someone else share their experience with AB?
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > **** IMPORTANT ****
>> > This group is for the discussion between users only.
>> > This is *NOT* technical support channel.
>> >
>> > *********************
>> > TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail
> directly to
>> > SUPPORT {at} amibroker.com
>> > *********************
>> >
>> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> > http://www.amibroker.com/devlog/
>> >
>> > For other support material please check also:
>> > http://www.amibroker.com/support.html
>> >
>> > *********************************
>> > Yahoo! Groups Links
>> >
>> >
>> >
>>
>
>
>
> ------------------------------------
>
> **** IMPORTANT ****
> This group is for the discussion between users only.
> This is *NOT* technical support channel.
>
> *********************
> TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
> *********************
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> *********************************
> Yahoo! Groups Links
>
>
>
------------------------------------
**** IMPORTANT ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
*********************
TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
*********************
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
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