MemHack
memHack refers to the strategy of storing a user's Memory
object in global
to skip the JSON.parse()
normally required at first-access of Memory
in a tick. Normally, the way Memory
works is when first accessed in a tick all of Memory
is JSON.parsed()
for the tick it is being used, then after any changes have been made end-of-tick it is JSON.stringified()
for storage for the next tick it is accessed. The user running their code pays for this parsing/stringifying with CPU the larger the Memory
object the more costly it is to process. So, memHack works by creating an object to store Memory
in global when global is 'first created' (and needs to be rebuilt if global dies due to code push, global reset, ect), then at the start of a tick (start of a user's main loop) deletes the 'normal' Memory
object and replaces it with the global version which due to global persisting between ticks does not need to be parsed. It finally sets the RawMemory._parsed
to the current global memHack obj, this insures changes are updated to the normal Memory
object, so that in the event of a global reset when reconstructing the Memory
object will still have the changes and that the Memory watcher / console changing still work. It is important to note, that RawMemory._parsed
is not officially documented in the API however it has been around and accessible for several years. It is possible for this method to become defunct in the future.
Code Examples
There are a few places you can view examples of this code: