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Just done that Tomasz.
Thanks for your time.
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> 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@xxx>
> 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@> 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@>
> >> 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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