I'm trying to debug the performance characterics of my own program so I'm following the tutorial on the golang blog. But I have 1 small issues I can't investigate the my own functions or call in the resulting profiling output. I'm using this command to build my binary:
go build -ldflags "-s -extldflags -static" -a -installsuffix cgo -o bin/brains
And when I use go tool pprof to examine the result I can only
(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
As you can see a large amount of time is spend in the [brains] package, but I can't see any details of which functions like I do see for other packages! I probably doing something very stupid wrong of course so if somebody notices my mistake I would be very thankful if you point it out to me :D
ps: I'm doing the profiling on a linux environment and the analysis on my Macbook, but I think it shouldn't matter since the binary is statically build the same for both environments
Thanks,
Niels
