"AW" and "UW" meaning in stats?

Does anyone know what the “AW” and “UW” stands for in the various stats displays?

This is the most I found about those:

// DECLARE_DWORD_COUNTER_STAT are displayed in the order listed here
DECLARE_DWORD_COUNTER_STAT(TEXT("Pre AW Actors Ticked"),STAT_PreAsyncActorsTicked,STATGROUP_Game);
DECLARE_DWORD_COUNTER_STAT(TEXT("During AW Actors Ticked"),STAT_DuringAsyncActorsTicked,STATGROUP_Game);
DECLARE_DWORD_COUNTER_STAT(TEXT("Post AW Actors Ticked"),STAT_PostAsyncActorsTicked,STATGROUP_Game);
DECLARE_DWORD_COUNTER_STAT(TEXT("Post UW Actors Ticked"),STAT_PostUpdateWorkActorsTicked,STATGROUP_Game);

DECLARE_DWORD_COUNTER_STAT(TEXT("Pre AW Comps Ticked"),STAT_PreAsyncComponentsTicked,STATGROUP_Game);
DECLARE_DWORD_COUNTER_STAT(TEXT("During AW Comps Ticked"),STAT_DuringAsyncComponentsTicked,STATGROUP_Game);
DECLARE_DWORD_COUNTER_STAT(TEXT("Post AW Comps Ticked"),STAT_PostAsyncComponentsTicked,STATGROUP_Game);

So asynchronous and update work? I don’t know if that gets you anywhere.

Thanks @Nathaniel3W

That helps!