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" <[EMAIL PROTECTED]> To: <amibroker@yahoogroups.com> 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@yahoogroups.com, "Tomasz Janeczko" <[EMAIL PROTECTED]> 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" <[EMAIL PROTECTED]> >> To: <amibroker@yahoogroups.com> >> Sent: Tuesday, June 10, 2008 1:18 AM >> Subject: [amibroker] Re: Tracking down performance degredation in AB >> >> >> > Already using 5.10 Tomasz. >> > >> > --- In amibroker@yahoogroups.com, "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@yahoogroups.com> >> >> 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@yahoogroups.com, "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 > > >