On Mon, 12 Feb 2018 16:24:25 -0800 (PST) David Rientjes <rientjes@xxxxxxxxxx> wrote: > Both kernelcore= and movablecore= can be used to define the amount of > ZONE_NORMAL and ZONE_MOVABLE on a system, respectively. This requires > the system memory capacity to be known when specifying the command line, > however. > > This introduces the ability to define both kernelcore= and movablecore= > as a percentage of total system memory. This is convenient for systems > software that wants to define the amount of ZONE_MOVABLE, for example, as > a proportion of a system's memory rather than a hardcoded byte value. > > To define the percentage, the final character of the parameter should be > a '%'. Is this fine-grained enough? We've had percentage-based tunables in the past, and 10 years later when systems are vastly larger, 1% is too much. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>