add gperftools for mem leak detect, mem/cpu profile.

@@ -419,6 +419,7 @@ See also: [Performance Test Guide](https://github.com/winlinvip/simple-rtmp-serv
 * nginx v1.5.0: 139524 lines <br/>
 
 ### History
+* v1.0, 2014-03-06, add gperftools for mem leak detect, mem/cpu profile.
 * v1.0, 2014-03-04, add gest framework for utest, build success.
 * v1.0, 2014-03-02, add wiki [srs-librtmp](https://github.com/winlinvip/simple-rtmp-server/wiki/SrsLibrtmp), [srs for arm](https://github.com/winlinvip/simple-rtmp-server/wiki/SrsLinuxArm), [product](https://github.com/winlinvip/simple-rtmp-server/wiki/Product)
 * v1.0, 2014-03-02, srs-librtmp, client publish/play library like librtmp.

@@ -30,6 +30,9 @@ tools/ccache-3.1.9.zip
     
 gtest-1.6.0.zip
     google单元测试框架。
+    
+gperftools-2.1.zip
+    google性能分析和测试工具。
 
 links:
     ffmpeg: 
@@ -59,4 +62,7 @@ links:
     gtest:
         https://code.google.com/p/googletest
         https://code.google.com/p/googletest/downloads/list
+    gperftools:
+        https://code.google.com/p/gperftools/
+        https://code.google.com/p/gperftools/downloads/list