Talk:Region-based memory management
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About the example
[edit]Wouldn't it be better to change
ListNode* newNode = allocateFromRegion(r, sizeof(ListNode));
into
ListNode* newNode = allocateFromRegion(r, sizeof(*newNode));
Of course, the code does the same thing. But if you change the referent type of
newNode
it would be less error prone (you only have to change the type in one place). — Preceding unsigned comment added by Mlehn (talk • contribs) 09:14, 21 February 2021 (UTC)
Related to arenas?
[edit]Is this concept related to arenas? What are the differences? Codegrinder (talk) 08:42, 6 March 2024 (UTC)
Advantages need to be mentioned prominently
[edit]Arenas(/Regions) are great for spatial cache locality, also oftentimes you can use smaller relative pointers (i.e. 32-bit indices into the arena instead of a 64-bit pointer) to reference objects inside the arena. Both of these properties can be tremendous performance enhancements. Arenas are among the most important tools of Data-oriented design. Yet this article fails to properly mention these advantages while only naming disadvantages. Also, freeing all memory at once can actually, in some scenarios, be an advantage as well, as we don't have to pay the cost of running the allocator free code on each of the objects individually, and if the objects need to be kept around very long anyway, arenas will again outperform traditional allocation schemes dealing with objects individually. 2001:4BB8:2DC:779A:B92F:464A:86BA:6A4B (talk) 16:38, 1 June 2025 (UTC)