Facebooker talk - Dec 2008 - API calls = high CPU use?

I have some high-traffic apps whose CPU use is pretty consistently high. I
think I''m seeing a connection between Facebooker API calls and that CPU
use.
My API calls send notifications and publish a feed; those calls make up the
overwhelming majority of my wall clock time. But that shouldn''t
translate
into high CPU use, right? Well, in a thoroughly unscientific test, I''m
seeing about 33% lower CPU use without those calls.

Is Facebooker going into a tight loop while waiting for a response or
something to that effect?
Any other tips to reduce CPU use in general?

Robert
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There''s no looping, but there is XML parsing. I wonder if there is an  
easy way to reduce the overhead of that. Does anyone remember what  
happened to the change to use libxml? we could alternatively use  
nokogiri if it is available.

Mike

On Dec 29, 2008, at 6:02 PM, Robert Matei wrote:
> I have some high-traffic apps whose CPU use is pretty consistently  
> high. I think I''m seeing a connection between Facebooker API calls
> and that CPU use.
>
> My API calls send notifications and publish a feed; those calls make  
> up the overwhelming majority of my wall clock time. But that  
> shouldn''t translate into high CPU use, right? Well, in a
thoroughly
> unscientific test, I''m seeing about 33% lower CPU use without
those
> calls.
>
> Is Facebooker going into a tight loop while waiting for a response  
> or something to that effect?
> Any other tips to reduce CPU use in general?
>
> Robert
> _______________________________________________
> Facebooker-talk mailing list
> Facebooker-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/facebooker-talk
--
Mike Mangino
http://www.elevatedrails.com