Merge branch 'v1.6' into master

server/bufferpool.go

@@ -0,0 +1,27 @@
+package server
+
+import "sync"
+
+const bufferPoolSize int = 32 * 1024
+
+func newBufferPool() *bufferPool {
+	return &bufferPool{
+		pool: sync.Pool{
+			New: func() interface{} {
+				return make([]byte, bufferPoolSize)
+			},
+		},
+	}
+}
+
+type bufferPool struct {
+	pool sync.Pool
+}
+
+func (b *bufferPool) Get() []byte {
+	return b.pool.Get().([]byte)
+}
+
+func (b *bufferPool) Put(bytes []byte) {
+	b.pool.Put(bytes)
+}

server/server.go

@@ -11,6 +11,7 @@ import (
 	stdlog "log"
 	"net"
 	"net/http"
+	"net/http/httputil"
 	"net/url"
 	"os"
 	"os/signal"
@@ -77,6 +78,7 @@ type Server struct {
 	provider                      provider.Provider
 	configurationListeners        []func(types.Configuration)
 	entryPoints                   map[string]EntryPoint
+	bufferPool                    httputil.BufferPool
 }
 
 // EntryPoint entryPoint information (configuration + internalRouter)
@@ -117,6 +119,8 @@ func NewServer(globalConfiguration configuration.GlobalConfiguration, provider p
 		server.globalConfiguration.API.CurrentConfigurations = &server.currentConfigurations
 	}
 
+	server.bufferPool = newBufferPool()
+
 	server.routinesPool = safe.NewPool(context.Background())
 	server.defaultForwardingRoundTripper = createHTTPTransport(globalConfiguration)
 
@@ -988,6 +992,7 @@ func (s *Server) loadConfig(configurations types.Configurations, globalConfigura
 						forward.ErrorHandler(errorHandler),
 						forward.Rewriter(rewriter),
 						forward.ResponseModifier(responseModifier),
+						forward.BufferPool(s.bufferPool),
 					)
 
 					if err != nil {