Update NEWS.

12 years ago · 439e685bfa
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 Version 2.7.0 - August 18, 2012
 - Introduce a new statistic, Work Utility, which is the number of difficulty 1
 shares solved per minute. This is useful for measuring a relative rate of work
 that is independent of reject rate and target difficulty.
 - Implement a new pool strategy, BALANCE, which monitors work performed per pool
 as a rolling average every 10 minutes to try and distribute work evenly over all
 the pools. Do this by monitoring diff1 solutions to allow different difficulty
 target pools to be treated equally, along with solo mining. Update the
 documentation to describe this strategy and more accurately describe the
 load-balance one.
 - Getwork fail was not being detected. Remove a vast amount of unused variables
 and functions used in the old queue request mechanism and redefine the getfail
 testing.
 - Don't try to start devices that don't support scrypt when scrypt mining.
 - 0 is a valid return value for read so only break out if read returns -1.
 - Consider us lagging only once our queue is almost full and no staged work.
 - Simplify the enough work algorithm dramatically.
 - Only queue from backup pools once we have nothing staged.
 - Don't keep queueing work indefinitely if we're in opt failover mode.
 - Make sure we don't opt out of queueing more work if all the queued work is
 from one pool.
 - Set lagging flag if we're on the last of our staged items.
 - Reinstate clone on grabbing work.
 - Grab clones from hashlist wherever possible first.
 - Cull all the early queue requests since we request every time work is popped
 now.
 - Keep track of staged rollable work item counts to speed up clone_available.
 - Make expiry on should_roll to 2/3 time instead of share duration since some
 hardware will have very fast share times.
 - Do the cheaper comparison first.
 - Check that we'll get 1 shares' worth of work time by rolling before saying we
 should roll the work.
 - Simplify all those total_secs usages by initialising it to 1 second.
 - Overlap queued decrementing with staged incrementing.
 - Artificially set the pool lagging flag on pool switch in failover only mode as
 well.
 - Artificially set the pool lagging flag on work restart to avoid messages about
 slow pools after every longpoll.
 - Factor in opt_queue value into enough work queued or staged.
 - Roll work whenever we can on getwork.
 - Queue requests for getwork regardless and test whether we should send for a
 getwork from the getwork thread itself.
 - Get rid of age_work().
 - 0 is a valid return value for read so only break out if read returns -1.
 - Offset libusb reads/writes by length written as well in ztex.
 - Cope with timeouts and partial reads in ztex code.
 - fpga serial I/O extra debug (disabled by default)
 Version 2.6.5 - August 15, 2012
 - Don't try to get bitforce temperature if we're polling for a result to