Merge pull request #191 from coinbase/patrick/badger-performance-mode

[storage] Add Performance Mode Config

storage/badger_storage.go

@@ -150,6 +150,36 @@ func DefaultBadgerOptions(dir string) badger.Options {
 	return opts
 }
 
+// PerformanceBadgerOptions are performance geared
+// BadgerDB options that use much more RAM than the
+// default settings.
+func PerformanceBadgerOptions(dir string) badger.Options {
+	opts := badger.DefaultOptions(dir)
+
+	// By default, we do not compress the table at all. Doing so can
+	// significantly increase memory usage.
+	opts.Compression = DefaultCompressionMode
+
+	// Load tables into memory and memory map value logs.
+	opts.TableLoadingMode = options.MemoryMap
+	opts.ValueLogLoadingMode = options.MemoryMap
+
+	// This option will have a significant effect the memory. If the level is kept
+	// in-memory, read are faster but the tables will be kept in memory. By default,
+	// this is set to false.
+	opts.KeepL0InMemory = false
+
+	// We don't compact L0 on close as this can greatly delay shutdown time.
+	opts.CompactL0OnClose = false
+
+	// LoadBloomsOnOpen=false will improve the db startup speed. This is also
+	// a waste to enable with a limited index cache size (as many of the loaded bloom
+	// filters will be immediately discarded from the cache).
+	opts.LoadBloomsOnOpen = false
+
+	return opts
+}
+
 // NewBadgerStorage creates a new BadgerStorage.
 func NewBadgerStorage(
 	ctx context.Context,