simpleperf 火焰图

Python09

simpleperf 火焰图,第1张

1. 获取simpleperf的可执行文件

android\system\extras\simpleperf\scripts\bin\android

2 利用simpleperf抓取perf.data数据

adb shell simpleperf record -p 1791 -g --duration 30 -o /sdcard/perf.data

3  pull数据到指定的目录

simpleperf-master$ adb pull /sdcard/perf.data

4 . 在该目录下执行如下指令

python report_sample.py --symfs android/out/target/product/sdm710/symbols/vendor/lib/hw/ >out.perf

注：示例中的 " --symfs " 指定符号表

5. 从github中获取如下工具

git clone https://github.com/brendangregg/FlameGraph.git

6. 生成火焰图

在 simpleperf-master$ 运行  python report_sample.py >./FlameGraph-master/out.perf

进入 /FlameGraph-master 下运行

./stackcollapse-perf.pl out.perf >out.folded

./flamegraph.pl out.folded >p.svg

注：上面的2个工具存在于FlameGraph的git仓库中 ，最后生成的p.svg需要用Google Chrome打开

一、画一朵花+签名

代码如下：

# -*- coding:utf-8 -*-

#画一朵花+签名

import turtle

turtle.color('red','green')

turtle.pensize(5)

turtle.goto(0,0)

turtle.speed(10)

for i in range(15):

turtle.forward(100)

turtle.right(150)

turtle.up()

turtle.goto(150,-120)

turtle.color('black')

turtle.write("xxx" )

turtle.up()

turtle.goto(160,-140)

turtle.color('black')

turtle.write("2018 年 1 月 10 日" )

turtle.up()

turtle.goto(240,-160)

turtle.color('black')

turtle.write("." )

turtle.done()

二、画五角星脸+签名

代码如下：

# -*- coding:utf-8 -*-

#画五角星脸+签名

import turtle

turtle.color('red','green')

turtle.pensize(5)

turtle.forward(100)

turtle.right(144)

turtle.forward(100)

turtle.right(144)

turtle.forward(100)

turtle.right(144)

turtle.forward(100)

turtle.right(144)

turtle.forward(100)

turtle.right(144)

turtle.forward(100)

turtle.up()

turtle.goto(150,120)

turtle.down()

turtle.color('red','green')

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.up()

turtle.goto(-80,90)

turtle.down()

turtle.color('red','green')

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.right(144)

turtle.forward(50)

turtle.up()

turtle.goto(150,-120)

turtle.color('black')

turtle.write("xxx" )

turtle.up()

turtle.goto(160,-140)

turtle.color('black')

turtle.write("2018 年 1 月 7 日" )

turtle.up()

turtle.goto(240,-160)

turtle.color('black')

turtle.write("." )

turtle.done()