[rc5] 64-bit client oddity?

Chris Grantham casper at optima.mme.wsu.edu
Thu Oct 23 16:47:13 EDT 1997


Couldn't have said it better myself. Although it looks like the client
just eats a block, it really doesn't. No need for panic, you can all go
back inside your homes now. =)


--
|-------------------------------|
|Chris Grantham                 |
|distributed.net                |
|4500 Cows Crunching Keys. Moo. |
|-------------------------------|

Jeff Woods wrote:

> At 09:15 AM 10/23/97 -0700, you wrote:
>
> >> <<<<<<<<<<<<<<<<<<<<
> >> [10/23/97 15:02:19 GMT] Retrieved 20 blocks from server
> >> [10/23/97 15:02:19 GMT] Block:  6400A121:10000000 ready for
> processing
> >> [10/23/97 15:02:19 GMT] 19 blocks remain in file C:\RC5\buff-in.rc5
>
> >> [10/23/97 15:02:19 GMT] 0 blocks are in file C:\RC5\buff-out.rc5
> >> Child thread # 1 has been started.
> >> [10/23/97 15:02:19 GMT] Block:  6400A121:20000000 ready for
> processing
> >> [10/23/97 15:02:19 GMT] 18 blocks remain in file C:\RC5\buff-in.rc5
>
> >> [10/23/97 15:02:19 GMT] 0 blocks are in file C:\RC5\buff-out.rc5
> >> .....10%.....20%...
> >>
> >the client now is processing 1 block and preparing to process the
> next,
> >so you started block 1 and staged block2 for when block1 finished...
>
> I'm going to guess this was done so that the time spent communicating
> with
> the proxies could also be spent testing keys in another thread?   I.e.
> if
> the entire buff-in.rc5 file was tested, there would have been a "dead"
> time
> in the old system while the proxy was contacted, results sent, and
> block
> retrieved, and depending on the proxies and the buffering levle
> (defaulted
> to five, no?), that a Pentium-166 was wasting nearly one minute of
> every
> 90, or 1% of its time, communicating with the proxies while NOT
> testing (a
> percentage that would be WORSE the faster the CPU got!).
>
> So now it will begin testing the last block AND will simultaneously
> flush
> the buffer, get more blocks, and queue the next one, saving that minor
>
> percentage down time?   Right?   (Or is there another reason?)



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