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Old 2006-02-16, 18:55   #1
Old man PrimeNet
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Jan 2003
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10110 Posts
Default v4 LL result assignment times graph

This graph of 19538 recent LL results shows 98% are received within 32 weeks (224 days) of assignment, with the peak assignment age at 6 weeks. Factor results have a smaller, similar curve peaking at 1 week.

v5 PrimeNet will manage the long, thin tail of the LL result time curve by more judiciously assigning work according to computer capabilities. The tail will still be long, but thinner.

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Old 2006-02-16, 19:12   #2
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Aug 2002
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This is fascinating information that I've always been interested in knowing! It would also be interesting to know what proportion of expired exponents return a result and when. This should help us fix the "expiry" date more accurately in v5.

BTW, is this graph for first-time test only or both first-time and second time. it would be useful to break this into three graphs for first-time, DC and 33Ms. And also perhaps according to exponent size.

Last fiddled with by garo on 2006-02-16 at 19:14
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Old 2006-02-16, 23:02   #3
Old man PrimeNet
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Correction: the main results arrival peak is centered on week 4, not 6 as stated above.

Below is a component breakdown chart, though for only 7161 LL results received in the last 24 hours that were assigned up to a year ago.

Right, garo, this information does in fact inform our v5 assignment expiration policy planning. But for that purpose the graphs do not need to differentiate expired assignments, which are included.

Assignment time is mostly a function of exponent size, computer speed/model and availability, and we can calculate how long a LL result should take for a given computer fairly accurately when we have good computer data. The only reason we expire assignments is to get results back faster. The v5 system will have the data to manage different expiration times for each computer based upon their characteristics, performance history and reliability. Other v5 possibilities include account users and teams configuring their own expiration policies, within reasonable limits.

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