From 27ba246027580e8c0825ef2ae9549453e722c821 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 11 Sep 2016 02:25:06 -0700
Subject: [PATCH] ldb: minor.

---
 lib/db/ldb.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/db/ldb.js b/lib/db/ldb.js
index 7f389456..5376893b 100644
--- a/lib/db/ldb.js
+++ b/lib/db/ldb.js
@@ -35,9 +35,11 @@ function ldb(options) {
     utils.mkdir(target.location, true);
 
   return new LowlevelUp(target.location, {
-    // LevelDB and others
+    // Generic
     createIfMissing: options.createIfMissing !== false,
     errorIfExists: options.errorIfExists === true,
+
+    // LevelDB
     compression: options.compression !== false,
     cacheSize: options.cacheSize || (8 << 20),
     writeBufferSize: options.writeBufferSize || (4 << 20),
@@ -45,13 +47,13 @@ function ldb(options) {
     paranoidChecks: false,
     memory: false,
 
-    // For LMDB if we decide to use it:
+    // LMDB
     sync: options.sync || false,
-    mapSize: options.mapSize || 10 * (1024 << 20),
+    mapSize: options.mapSize || 256 * (1024 << 20),
     writeMap: options.writeMap || false,
     noSubdir: options.noSubdir !== false,
 
-    // For browser buffer keys
+    // Browser
     bufferKeys: options.bufferKeys,
 
     db: target.db
@@ -88,6 +90,7 @@ ldb.getBackend = function getBackend(db) {
       name = 'lmdb';
       ext = 'mdb';
       break;
+    case 'mem':
     case 'memory':
     case 'rbt':
       name = 'rbt';