Package pprof

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Style Pass

2021-05-22 09:30:07

The first step to profiling a Go program is to enable profiling. Support for profiling benchmarks built with the standard testing package is built into go test. For example, the following command runs benchmarks in the current directory and writes the CPU and memory profiles to cpu.prof and mem.prof:

There is also a standard HTTP interface to profiling data. Adding the following line will install handlers under the /debug/pprof/ URL to download live profiles:

There are many commands available from the pprof command line. Commonly used commands include "top", which prints a summary of the top program hot-spots, and "web", which opens an interactive graph of hot-spots and their call graphs. Use "help" for information on all pprof commands.

elf.go label.go map.go pprof.go pprof_rusage.go proto.go protobuf.go protomem.go runtime.go