xinyiZzz commented on code in PR #9581:
URL: https://github.com/apache/doris/pull/9581#discussion_r908185221
##########
be/src/vec/common/allocator.h:
##########
@@ -101,12 +113,75 @@ template <bool clear_memory_, bool mmap_populate>
class Allocator {
public:
/// Allocate memory range.
- void* alloc(size_t size, size_t alignment = 0) { return
alloc_no_track(size, alignment); }
+ void* alloc(size_t size, size_t alignment = 0) {
+ void* buf;
+
+ if (size >= MMAP_THRESHOLD) {
+ if (alignment > MMAP_MIN_ALIGNMENT)
Review Comment:
No need for zero-fill, because mmap guarantees it.
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