Module datafusion::execution::memory_pool

Manages all available memory during query execution

Modules

proxy

Utilities that help with tracking of memory allocations.

Structs

FairSpillPool

A MemoryPool that prevents spillable reservations from using more than an even fraction of the available memory sans any unspillable reservations (i.e. (pool_size - unspillable_memory) / num_spillable_reservations)

GreedyMemoryPool

A MemoryPool that implements a greedy first-come first-serve limit

MemoryConsumer

A memory consumer that can be tracked by MemoryReservation in a MemoryPool

MemoryReservation

A MemoryReservation tracks a reservation of memory in a MemoryPool that is freed back to the pool on drop

UnboundedMemoryPool

A MemoryPool that enforces no limit

Traits

MemoryPool

The pool of memory on which MemoryReservation record their memory reservations

Functions

human_readable_size

Present size in human readable form