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wcfs/notes.txt

@@ -51,7 +51,8 @@ Emitting whole δR right at transaction-boundary time requires to keep whole
 ZBigFile.blktab index in RAM. Even though from space point of view it is
 somewhat acceptable (~ 0.01% of whole-file data size, i.e. ~ 128MB of index for
 ~ 1TB of data), it is not good from time overhead point of view - initial open
-of a file this way would be potentially slow.
+of a file this way would be potentially slow as full blktab scan - including
+Trees _and_ Buckets nodes - would be required.
 
 -> we took the approach where we send invalidation to client about a block
 lazily only when the block is actually accessed.