Sorry, I have offtopic question - why I see only Martin's reply but not 
recived original Jonn reply on this topic ?

----- Original Message ----- 
From: "Martin" <m_boinc...@ml1.co.uk>
To: "BOINC Developers Mailing List" <boinc_dev@ssl.berkeley.edu>
Sent: Tuesday, September 29, 2009 6:34 PM
Subject: Re: [boinc_dev] [boinc_alpha] Card Gflops in BOINC 6.10


> john.mcl...@sybase.com wrote:
>> Was that the internal bookkeeping that was taking the entire CPU core? 
>> Or
>> was it the UI taking the entire core?  I do remember a discussion that
>> indicated that in those cases the UI would bog down.  The default 
>> algorithm
>> for sorting tasks in the UI is unfortunately (n^2)*lg(n) in complexity, 
>> and
>> having a few thousand tasks tends to absorb an incredible amount of time
>> there.  There is a simple method (implemented now?) that changes that to
>> n*lg(n) in complexity.
>
> Raistmer:
>> Faster system just has more tasks in queue to meet same cache in number 
>> of
>> days. Current fast many-CUDA hosts hold few thousands tasks in cache. It
> [...]
>
> Is there not also the problem that the ENTIRE tasks list xml is uploaded
> to the servers for each new request for more work?...
>
> ... And if the servers link is overloaded, that task list has to be
> repeatedly resent until the work request sequence successfully 
> completes...
>
> (Often a problem for s...@h...)
>
>
> Aside: I deliberately keep a very small cache!
>
> Regards,
> Martin
>
> -- 
> --------------------
> Martin Lomas
> m_boincdev ml1 co uk.ddSPAM.dd
> --------------------
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