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Hello,
Please send your layout files to support so I can check on my end.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "sidhartha70" <sidhartha70@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, June 10, 2008 10:10 AM
Subject: [amibroker] Re: Tracking down performance degredation in AB
> Thanks Tomasz, but I'm as sure as I can be it's not my formula's...
> I have checked them before, but I checked again on live charts as you
> suggested... my slowest formula is about 0.05sec and that uses about
> three plotforeign() statements.
>
> I have found that symbol linking of charts seems to cause them to slow
> down... Would that be correct...? And when I say 'slow down' I don't
> mean chart re-draws... more general operation, like scrolling on
> charts, cursor clicks, menu pop up & right click menus etc...
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>>
>> Hello,
>>
>> Chart refresh of ZERO means to refresh as often as CPU allows
>> so it inherently leads to higher load. That is not degradation
> however but
>> rather speed up as chart are refreshed more often.
>>
>> However if on single core you are getting more than 70% CPU load average
>> it may mean that your formulas are probably not fine-tuned for
> real-time performance.
>>
>> EVERY formula used for real time trading should execute below 0.1
> second.
>>
>> You should display the timing of your chart
>> (Tools->Preferences->Miscellaneous "Display chart timing).
>> If your formula execution takes ANYTHING more than 0.1 sec to execute
>> it means that the formula you are using is written wrong
>> (inefficiently).
>> Formulas shipped with AB execute in less than 0.01 sec.
>>
>> Run
>> AFL Editor, Tools->Check and profile to find bottleneck of your
> formulas.
>>
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "sidhartha70" <sidhartha70@xxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, June 10, 2008 1:18 AM
>> Subject: [amibroker] Re: Tracking down performance degredation in AB
>>
>>
>> > Already using 5.10 Tomasz.
>> >
>> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
>> >>
>> >> Which version are you using?
>> >> You should upgrade to 5.10 for best results.
>> >>
>> >> Best regards,
>> >> Tomasz Janeczko
>> >> amibroker.com
>> >> ----- Original Message -----
>> >> From: "sidhartha70" <sidhartha70@>
>> >> To: <amibroker@xxxxxxxxxxxxxxx>
>> >> Sent: Monday, June 09, 2008 9:29 PM
>> >> Subject: [amibroker] Re: Tracking down performance degredation in AB
>> >>
>> >>
>> >> > Actually, I think I just tracked it down... seems obvious now. I
>> >> > recently changed the 'Intraday" refresh interval in Preferences
> from 3
>> >> > secs to zero...
>> >> >
>> >> > However, I only have about 4 symbols feeding live from IQ
> Feed... and
>> >> > I'm running a beast of a PC... and the fasted internet connection
>> >> > available in the UK... the net effect on my processor useage seems
>> >> > negligable... so I'm kinda surprised that it would degrade
> performance
>> >> > so much...
>> >> >
>> >> > Anyone else experienced this...? Should I be suprised or maybe
> there
>> >> > is something else amiss...??
>> >> >
>> >> > Many Thanks
>> >> >
>> >> > --- In amibroker@xxxxxxxxxxxxxxx, "sidhartha70" <sidhartha70@>
> wrote:
>> >> >>
>> >> >> HI All,
>> >> >>
>> >> >> Been using AB for a couple of months now... I seem to have
> noticed a
>> >> >> performance degredation on the AB's use the past couple of days. I
>> >> >> can't see that I've added antyhing in particular that would cause
>> > this.
>> >> >>
>> >> >> Any ideas towards tracking down performance degredation in AB...?
>> >> >>
>> >> >> Thanks
>> >> >>
>> >> >
>> >> >
>> >> >
>> >> > ------------------------------------
>> >> >
>> >> > 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 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
>> >> >
>> >> >
>> >> >
>> >>
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > 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 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
>> >
>> >
>> >
>>
>
>
>
> ------------------------------------
>
> 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 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
>
>
>
------------------------------------
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