On: UltraRAM

[pmontra]

Maybe

  begin() 
  try {
    work on
    several
    in memory
    data structures
    commit() 
  }
  catch {
    rollback()
  }

And all those data structures are either collectively updated or not.

[danbruc → pmontra]

Transactional memory [1], there are existing hardware and software implementations.

[1] https://en.wikipedia.org/wiki/Transactional_memory

[yencabulator → danbruc]

None of which seem to perform well in the real world when you measure anything but CS papers published...