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you can try by commenting out piences of code and seeing which one is
causing u more issues.
--- In amibroker@xxxxxxxxxxxxxxx, "Padhu" <ccie8340@xxx> wrote:
>
> I am using esignal RT feed and I scan about 18 forex pairs and I
have about 12 strategies running in the AFL. No loops. But lot of
multitimeframe coding.
>
> I am going to upgrade from 768mb to 2GB mem and see if it makes any
differennce.
>
> I wish there was like a progress bar showing which line of code is
being executed while elasped time is displayed, so that I can see
which module of code is slowing things relatively speaking.
>
> Worstcase I may have to bump up the scanning interval to 2min. One
option I think that would be helpful is to enable scan at the
completion of the bar per periodicity set. Say periodicity is set to
hourly, as soon as the hourly bar is
> complete, initiate a scan.
>
>
> Cheers,Padhu
>
>
>
> ----- Original Message -----
> From: murthysuresh
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: Friday, September 21, 2007 2:46 PM
> Subject: [amibroker] Re: Best practices on tuning up Amibroker
for faster scanning
>
>
> What is ur datasource. I find DTNIQ to be causing heavy cpu
cycles.
> the same scans that i was running last week is now slowing my
system.
> if i shut down the connector and run it connected to a different
> datasource like IB, it is normal.
> If anyother are having same issues with DTNIQ, i would appreciate
> response because i am going to complain to them now.
>
> For the last 2 days, it is so bad that i cannot use the DTN data
> source at all. Maybe the 75 dollar savings compared to esignal is
not
> worth it.
>
> In terms AB optimizations,
> 1. i run 2 scans, i run a EOD scan to filter out potential
candidates
> adn put them in a watchlist. then i run a realtime scan on the
> watchlist to get me my results. obviously, loops would add to the
> execution times.
> 2. i have noticed that repeat scans on the same formula returns
data
> quicker. i guess, the first time, it has to backfill lot more. so
i
> start running my realtime scans before 9:15 am so that by the
time
> the market opens, the scans are runnign faster.
> Finally, this week DTNIQ is a resource hog. really big time.
> --- In amibroker@xxxxxxxxxxxxxxx, "Padhu" <ccie8340@> wrote:
> >
> > Hello,
> >
> > I am running Amibroker ver 4.9 on Dell single 2GHZ CPU with
768mb
> ram.
> > Just checking to see if anyone can share some
> > Best practices on tuning up Amibroker for faster scanning.
> >
> >
> >
> > 1. What are the things that can be be done on the system to
improve
> scanning time?. My scan interval is set for a min, but sometimes
> elapsed time is about 90 seconds.
> >
> > 2. Any recommendations on CPU/Mem usage?.
> >
> > 3. Anything in AFL that is known to be a resource hog and
should
> not be used or coded better shall we say?.
> >
> > 4. If scanning is done every min, do I still need backfill?.
Isn't
> backfill required only when previous bars data is missing in the
> database?.
> >
> >
> >
> > Thanks.
> >
> >
> >
> > Cheers,Padhu
> >
>
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