diff --git a/trunk/3rdparty/gprof/build_gprof2dot.sh b/trunk/3rdparty/gprof/build_gprof2dot.sh
index 5c0902a5f..43c143710 100755
--- a/trunk/3rdparty/gprof/build_gprof2dot.sh
+++ b/trunk/3rdparty/gprof/build_gprof2dot.sh
@@ -10,8 +10,8 @@ fi
 sudo echo "ok" > /dev/null 2>&1; 
 ret=$?; if [[ 0 -ne ${ret} ]]; then echo "you must be sudoer"; exit 1; fi
 
-tar xf graphviz-2.18.tar.gz
-cd graphviz-2.18 && ./configure && make && sudo make install
+tar xf graphviz-2.36.0.zip
+cd graphviz-2.36.0 && ./configure && make && sudo make install
 ret=$?; if [[ $ret -ne 0 ]]; then echo "build gprof2dot failed."; exit $ret; fi
 
 echo "we test in Centos6.0, it's ok"
diff --git a/trunk/3rdparty/gprof/graphviz-2.18.tar.gz b/trunk/3rdparty/gprof/graphviz-2.18.tar.gz
deleted file mode 100644
index ab5752056..000000000
Binary files a/trunk/3rdparty/gprof/graphviz-2.18.tar.gz and /dev/null differ
diff --git a/trunk/3rdparty/gprof/graphviz-2.36.0.zip b/trunk/3rdparty/gprof/graphviz-2.36.0.zip
new file mode 100644
index 000000000..d4a096043
Binary files /dev/null and b/trunk/3rdparty/gprof/graphviz-2.36.0.zip differ
diff --git a/trunk/3rdparty/gprof/readme.txt b/trunk/3rdparty/gprof/readme.txt
old mode 100755
new mode 100644
index 24bf0e4ea..49d8b963c
--- a/trunk/3rdparty/gprof/readme.txt
+++ b/trunk/3rdparty/gprof/readme.txt
@@ -1,6 +1,8 @@
 gprof图形化输出工具: gprof2dot.py graphviz-2.18.tar.gz build_gprof2dot.sh
 
 dot:
+    http://www.graphviz.org/
+    http://www.graphviz.org/Download_source.php
     graphviz-2.18.tar.gz 绘图工具
     build_gprof2dot.sh 编译graphviz，命令为dot。
     要求是sudoer，需要sudo make install。
@@ -9,21 +11,24 @@ gprof2dot.py:
     将gprof的日志绘图。
     
 使用方法：
-1. srs配置时，指定 --with-pg
+0. 若需要图形化，编译dot：
+    cd 3rdparty/gprof && bash build_gprof2dot.sh
+1. srs配置时: 
+    ./configure --with-pg
     脚本会加入编译参数"-pg -lc_p"，gcc -g -pg -lc_p -c xxx -o xxx.o，即在configure中打开 Performance="-pg -lc_p"
     链接时，加入链接选项"-pg"，否则无法工作：gcc -pg -o srs xxxx.o，即在configure中打开 PerformanceLink="-pg"
 2. 编译和启动程序：make && ./objs/srs -c conf/srs.conf
     退出程序，按CTRL+C，可以看到生成了gmon.out，这个就是性能的统计数据。
 3. gprof生成报表：
-    用gprof生成报表：gprof -b ./objs/srs gmon.out > ~/t.log
+    gprof -b ./objs/srs gmon.out > gprof.srs.log
 4. 将报表生成图片：
-    ../3rdparty/gprof/gprof2dot.py ~/t.log | dot -Tpng -o ~/out.png
+    ./3rdparty/gprof/gprof2dot.py gprof.srs.log | dot -Tpng -o ~/winlin.png
 
 缩写语句：
     # 生成 ~/winlin.log ~/winlin.png
     rm -f gmon.out; ./objs/srs -c conf/srs.conf
     # 用户按CTRL+C
-    file="winlin";gprof -b ./objs/srs gmon.out > ~/${file}.log; ../thirdparty/gprof2dot.py ~/${file}.log| dot -Tpng -o ~/${file}.png
+    file="winlin";gprof -b ./objs/srs gmon.out > ~/${file}.log; ./3rdparty/gprof/gprof2dot.py ~/${file}.log | dot -Tpng -o ~/${file}.png
 
 备注：
     其实gprof生成的日志就可以看，不一定要图形化。
diff --git a/trunk/3rdparty/gprof/winlin.png b/trunk/3rdparty/gprof/winlin.png
new file mode 100644
index 000000000..23a629d74
Binary files /dev/null and b/trunk/3rdparty/gprof/winlin.png differ
diff --git a/trunk/configure b/trunk/configure
index 5089db345..384775836 100755
--- a/trunk/configure
+++ b/trunk/configure
@@ -104,6 +104,7 @@ default: bandwidth librtmp-sample utest
 	@echo -e "     |${SrsGprofSummaryColor}gprof @see: https://github.com/winlinvip/simple-rtmp-server/wiki/GPROF\$(BLACK)"
 	@echo -e "     |${SrsGprofSummaryColor}gprof: GNU profile tool, @see: http://www.cs.utah.edu/dept/old/texinfo/as/gprof.html\$(BLACK)"
 	@echo -e "     |     ${SrsGprofSummaryColor}rm -f gmon.out; ./objs/srs -c conf/srs.conf # start gprof\$(BLACK)"
+	@echo -e "     |     ${SrsGprofSummaryColor}killall -2 srs # or CTRL+C to stop gprof\$(BLACK)"
 	@echo -e "     |     ${SrsGprofSummaryColor}gprof -b ./objs/srs gmon.out > gprof.srs.log && rm -f gmon.out # gprof report to gprof.srs.log\$(BLACK)"
 	@echo -e "     \$(BLACK)+------------------------------------------------------------------------------------\$(BLACK)"
 	@echo -e "     |${SrsResearchSummaryColor}research: ./objs/research, api server, players, ts info.\$(BLACK)"