Github user julienledem commented on a diff in the pull request:
https://github.com/apache/drill/pull/283#discussion_r46316115
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exec/memory/base/src/main/java/org/apache/drill/exec/memory/README.md ---
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+# Memory: Allocation, Accounting and Management
+
+The memory management package contains all the memory allocation related
items that Drill uses to manage memory.
+
+
+## Key Components
+Memory management can be broken into the following main components:
+
+- Memory chunk allocation and fragmentation management
+ - `PooledByteBufAllocatorL` - A LittleEndian clone of Netty's jemalloc
implementation
+ - `UnsafeDirectLittleEndian` - A base level memory access interface
+ - `LargeBuffer` - A buffer backing implmentation used when working with
data larger than one Netty chunk (default to 16mb)
--- End diff --
typo: s/implmentation/implementation
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