我正在尝试调试我自己的程序的性能特征,所以我正在关注golang 博客上的教程。但是我有 1 个小问题,我无法调查自己的函数或调用生成的分析输出。我正在使用这个命令来构建我的二进制文件:
go build -ldflags "-s -extldflags -static" -a -installsuffix cgo -o bin/brains
而当我使用 go tool pprof 检查结果时,我只能
(pprof) top10 -cum
2.38mins of 5.25mins total (45.32%)
Dropped 125 nodes (cum <= 0.03mins)
Showing top 10 nodes out of 82 (cum >= 0.81mins)
flat flat% sum% cum cum%
0.33mins 6.24% 6.24% 4.82mins 91.69% encoding/xml.(*printer).marshalStruct
0.77mins 14.62% 20.86% 4.07mins 77.51% [brains]
0.04mins 0.79% 21.64% 1.92mins 36.50% encoding/xml.(*printer).writeEnd
0.12mins 2.24% 23.88% 1.47mins 28.06% encoding/xml.(*Decoder).unmarshal
0.31mins 5.83% 29.71% 1.27mins 24.14% github.com/aws/aws-sdk-go/vendor/github.com/jmespath/go-jmespath.(*Parser).nud
0.02mins 0.41% 30.12% 1.07mins 20.43% golang.org/x/net/html.parseForeignContent
0.52mins 9.89% 40.00% 0.98mins 18.64% golang.org/x/net/html.render1
0.15mins 2.76% 42.77% 0.95mins 18.01% github.com/aws/aws-sdk-go/vendor/github.com/jmespath/go-jmespath.(*Parser).parseMultiSelectHash
0.10mins 2.00% 44.77% 0.83mins 15.86% golang.org/x/net/html.initialIM
0.03mins 0.55% 45.32% 0.81mins 15.42% golang.org/x/net/html.beforeHeadIM
正如你所看到的,大量的时间都花在了 [brains] 包中,但是我看不到任何细节,比如我在其他包中看到的功能!当然,我可能会做一些非常愚蠢的错误,所以如果有人注意到我的错误,如果你指出我会非常感激:D
ps:我正在linux环境上进行分析,并在我的Macbook上进行分析,但我认为这无关紧要,因为二进制文件在两种环境中都是静态构建的
谢谢,
尼尔斯