Hi all
I struggling with profiling memory allocation for a function. I start the
test with:
go test -run ^$ -bench Scanner -memprofile mem.out -cpuprofile cpu.out -
memprofilerate=1Code hier eingeben...
and then i use pprof with:
go tool pprof log.test.exe mem.out --alloc_space
top10 log\.\(\*scanner\)
Showing nodes accounting for 0, 0% of 62.91kB total
flat flat% sum% cum cum%
If I do the same with the cpu profile I getting results:
(pprof) top10 log\.\(\*scanner\)
Showing nodes accounting for 0.11s, 5.45% of 2.02s total
Showing top 10 nodes out of 25
flat flat% sum% cum cum%
0.02s 0.99% 0.99% 0.03s 1.49% runtime.lock C:\Go\src\runtime\
lock_sema.go
0.02s 0.99% 1.98% 0.02s 0.99% runtime.stkbucket C:\Go\src\
runtime\mprof.go
0.02s 0.99% 2.97% 0.02s 0.99% runtime.unlock C:\Go\src\runtime
\lock_sema.go
0.01s 0.5% 3.47% 0.01s 0.5% bitbucket.org/snmed/mw/log.(*
scanner).openToken C:\Projects\goworkspace\src\bitbucket.org\snmed\mw\log\
scanner.go
0.01s 0.5% 3.96% 0.01s 0.5% bitbucket.org/snmed/mw/log.(*
scanner).propIDToken C:\Projects\goworkspace\src\bitbucket.org\snmed\mw\log\
scanner.go
0.01s 0.5% 4.46% 0.03s 1.49% bitbucket.org/snmed/mw/log.(*
scanner).textToken C:\Projects\goworkspace\src\bitbucket.org\snmed\mw\log\
scanner.go
0.01s 0.5% 4.95% 0.01s 0.5% runtime.mallocgc C:\Go\src\
runtime\runtime1.go
0.01s 0.5% 5.45% 0.01s 0.5% runtime.stdcall2 C:\Go\src\
runtime\os_windows.go
0 0% 5.45% 0.03s 1.49% bitbucket.org/snmed/mw/log.(*
scanner).(bitbucket.org/snmed/mw/log.alignmentToken)-fm C:\Projects\
goworkspace\src\bitbucket.org\snmed\mw\log\scanner.go
0 0% 5.45% 0.01s 0.5% bitbucket.org/snmed/mw/log.(*
scanner).(bitbucket.org/snmed/mw/log.openToken)-fm C:\Projects\goworkspace\
src\bitbucket.org\snmed\mw\log\scanner.go
What I'm missing here, there must be some allocations because the benchmark
shows me allocations:
goos: windows
goarch: amd64
pkg: butbucket.org/snmed/mw/log
BenchmarkScanner-8 300000 4534 ns/op 2864 B/op
97 allocs/op
PASS
ok butbucket.org/snmed/mw/log 1.618s
I'd appreciate any help.
Cheers
Sandro
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