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> 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?
No it is not normal, on my machine chart is drawn immediatelly after backfill.
Will investigate it after I am back from Canada.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "spacetalk123" <spacetalk123@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, October 28, 2005 11:44 AM
Subject: [amibroker] Re: New Interactive Brokers plugin 1.4.4 (a.k.a "performance booster" :-))
> 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
>>
>
>
>
>
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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