Use {{{size_factor}}} to size rowsets. Fixes #2628. close[t:2628]

git-svn-id: file:///svn/toku/tokudb@20375 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brtloader.c

@@ -332,6 +332,9 @@ static void *extractor_thread (void*);
 static uint64_t memory_per_rowset (BRTLOADER bl)
 // Return how much memory can be allocated for each rowset.
 {
+    if (size_factor==1) {
+	return 16*1024;
+    } else {
 	// There is a primary rowset being maintained by the foreground thread.
 	// There could be two more in the queue.
 	// There is one rowset for each index (bl->N) being filled in.
@@ -344,6 +347,7 @@ static uint64_t memory_per_rowset (BRTLOADER bl)
 	int64_t extra_reserved_memory = bl->N * FILE_BUFFER_SIZE;  // for each index we are writing to a file at any given time.
 	int64_t tentative_rowset_size = ((int64_t)(bl->reserved_memory - extra_reserved_memory))/(n_copies);
 	return MAX(tentative_rowset_size, (int64_t)MIN_ROWSET_MEMORY);
+    }
 }
 
 static int merge_fanin (BRTLOADER bl)