On 25/05/10 21:44, jay wrote:
> On Tuesday 25 May 2010 07:49:33 am Martin wrote:
>> On 25/05/10 00:20, jay wrote:
>>> On Monday 24 May 2010 03:03:17 pm David Anderson wrote:
>>>> The bottom line: as long as a host is sending correct results,
>>>> it shouldn't have a daily quota at all.
>>>
>>> Exactly.
>>
>> Nope!
>>
>> An absolute maximum daily quota is still needed to catch fault
>> conditions where Boinc doesn't know or can't detect any faults. I'm sure
>> we all know that Boinc is far from complete and definitely not perfect!
>>
>> There still needs to be a daily maximum that is set to say x10 whatever
>> is conceivably possible with today's hardware, or set to whatever the
>> project *servers* can withstand without suffering a effective DOS attack.
>>
>> A finer absolute limit could be...

> 
> That's called "running the world for the sake of the 1%'rs", Martin
> (In this case 1/10 of 1%)
> It's also why the scheduler is so frakked up in the first place.


I agree if you are alluding to the addition of lots of little 'special
cases' for amelioration of project specific 'quirks'. I'm a strong
believer in keeping it simple and keeping to the most robust general
case that is practical.


The comment about using an overriding daily maximum in case *Boinc
itself* fails comes more under the description of "fail safe" or
programming into the system "safety-in-depth"[*].


Regards,
Martin


Paraphrasing Wikipedia:

[*] The idea behind the safety-in-depth approach is to defend a system
against any particular failure using several, varying methods. It is a
layering tactic, conceived by the National Security Agency (NSA) as a
comprehensive approach to information and electronic security (defence
in depth).

This is also espoused for safety critical systems.



-- 
--------------------
Martin Lomas
m_boincdev ml1 co uk.ddSPAM.dd
--------------------
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