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[amibroker] Re: New Interactive Brokers plugin 1.4.4 (a.k.a "performance booster" :-))



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Trading Reference Links

Tomasz,
thank you for this great improvement. IB Backfill is now working 
perfectly, even outside the trading hours. 

The drop down of resources I observed formerly had been caused by an 
other application, sorry.

However, one question remains:
After backfilling one single symbol it takes about 20 seconds until 
the new chart is drawn. When I press F5 after the hint 
shows "backfill completed", the chart is drawn immediately. Is this 
normal?

Best regards.

--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx> 
wrote:
>
> Hello,
> 
> A new Interactive Brokers plugin version 1.4.4 (a.k.a "performance 
booster" :-))
> has been just released.
> 
> Direct download link:
> http://www.amibroker.com/bin/ib144/IB.dll
> 
> More information and setting up instructions:
> http://www.amibroker.com/ib.html
> 
> (You may need to press "REFRESH" button in your web browser to get 
updated contents of the page)
> 
> CHANGES FOR VERSION 1.4.4 (as compared to 1.4.3)
> 
> + core API parts rewritten to use fast buffered sockets - gives 
upto 10x performance improvement
> (previous versions used EClientSocket code supplied as a part of 
TWS API. Unfortunatelly this code was using single-byte-at-a-time 
> read from socket and it was terrible performance hog when backfills 
were longer than one day. New buffered socket code is able to 
> read upto 4096 bytes at once)
> 
> CHANGES FOR VERSION 1.4.3  (as compared to 1.4.2)
> 
> + full 5-day backfill for all symbols (1-minute bar interval)
> + IDEALPRO now uses MIDPRICE instead of BID to get cleaner 
backfill, but user can switch back to BID in config screen.
> 
> Best regards,
> Tomasz Janeczko
> amibroker.com
>






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