lib/fs.js

@@ -38,7 +38,6 @@ var Readable = Stream.Readable;
 var Writable = Stream.Writable;
 
 var kMinPoolSpace = 128;
-var kPoolSize = 40 * 1024;
 
 var O_APPEND = constants.O_APPEND || 0;
 var O_CREAT = constants.O_CREAT || 0;
@@ -1370,8 +1369,8 @@ fs.realpath = function realpath(p, cache, cb) {
 
 var pool;
 
-function allocNewPool() {
-  pool = new Buffer(kPoolSize);
+function allocNewPool(poolSize) {
+  pool = new Buffer(poolSize);
   pool.used = 0;
 }
 
@@ -1468,7 +1467,7 @@ ReadStream.prototype._read = function(n, cb) {
     // discard the old pool. Can't add to the free list because
     // users might have refernces to slices on it.
     pool = null;
-    allocNewPool();
+    allocNewPool(this._readableState.bufferSize);
   }
 
   // Grab another reference to the pool in the case that while we're
@@ -1560,7 +1559,6 @@ function WriteStream(path, options) {
 
   // a little bit bigger buffer and water marks by default
   options = util._extend({
-    bufferSize: 64 * 1024,
     lowWaterMark: 16 * 1024,
     highWaterMark: 64 * 1024
   }, options || {});