Make Large allocations naturally aligned #124
Merged
+142
−125
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This makes all large allocations aligned to their size next power of two size.
This introduces a new strategy for aligning blocks on platforms without a way to fetched aligned virtual memory (e.g. VirtualAlloc2, or mmap with MAP_ALIGNED).
To aid in debugging also uses mprotect to switch off unused pages in debug on posix platforms. This enables better testing of the Commit/Decommit code from Posix platforms.