【注意】最后更新于 December 2, 2019,文中内容可能已过时,请谨慎使用。
go version go1.11.1 darwin/amd64
安装:
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$ go get github.com/uber/go-torch
$ cd $GOPATH/src/github.com/uber/go-torch
$ git clone https://github.com/brendangregg/FlameGraph.git
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安装测试工具
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$ go get github.com/Masterminds/glide
$ cd $GOPATH/src/github.com/uber/go-torch
$ glide install
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性能分析工具
glide install
如果出现 Update failed for golang.org/x/sys: Cannot detect VCS
这种报错, 可以执行
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$ glide mirror set https://golang.org/x/sys https://github.com/golang/sys
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改变 $HOME/.gilde/mirrors.yaml
的镜像链接即可
运行时完成后输入 web
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$ go tool pprof --seconds 25 http://localhost:9090/debug/pprof/profile
Fetching profile over HTTP from http://localhost:9090/debug/pprof/profile?seconds=25
Please wait... (25s)
Saved profile in /Users/gpf/pprof/pprof.samples.cpu.002.pb.gz
Type: cpu
Time: Nov 2, 2018 at 11:46am (CST)
Duration: 25s, Total samples = 2.17s ( 8.68%)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) web
Failed to execute dot. Is Graphviz installed? Error: exec: "dot": executable file not found in $PATH
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出现 Failed to execute dot. Is Graphviz installed? Error: exec: "dot": executable file not found in $PATH
报错, 需要安装 graphviz
在 mac 上就直接 brew install graphviz
即可
文章作者
GPF
上次更新
2019-12-02
(521dbfe)