Post
Topic
Board Hardware
Re: Official Open Source FPGA Bitcoin Miner (Smaller Devices Now Supported!)
by
TheSeven
on 26/06/2011, 11:16:29 UTC
Hmmm  Huh
I have a delta of 15s with the test pattern - thus ~3MH/s on my Lattice ECP33
15s * 94.738 gives a quite large number, therefore the  min(60) hits and I end up with 47s job intervall.
Whay is it right to take this short path to 60s? I guess this was not ment to run on delta > 1.
It is recommended to request a new getwork at least every 60 seconds, so that you're working on one with a semi-current timestamp in the block. By buffering work I'm already exceeding that on slow FPGAs, this limit is just to prevent it from being much worse (at 3MH/s it would be like a 66 minute delay from the getwork request to share submission in the worst case, so you would usually only work on a single getwork before long polling kills it off).