Function javaCPUProfile

profile/legacy_java_profile.go:42–64

javaCPUProfile returns a new Profile from profilez data. b is the profile bytes after the header, period is the profiling period, and parse is a function to parse 8-byte chunks from the profile in its native endianness.

(b []byte, period int64, parse func(b []byte) (uint64, []byte))

// period, and parse is a function to parse 8-byte chunks from the
// profile in its native endianness.
func javaCPUProfile(b []byte, period int64, parse func(b []byte) (uint64, []byte)) (*Profile, error) {
	p := &Profile{
		Period:     period * 1000,
		PeriodType: &ValueType{Type: "cpu", Unit: "nanoseconds"},
		SampleType: []*ValueType{{Type: "samples", Unit: "count"}, {Type: "cpu", Unit: "nanoseconds"}},
	}
	var err error
	var locs map[uint64]*Location
	if b, locs, err = parseCPUSamples(b, parse, false, p); err != nil {
		return nil, err
	}

	if err = parseJavaLocations(b, locs, p); err != nil {
		return nil, err
	}

	// Strip out addresses for better merge.
	if err = p.Aggregate(true, true, true, true, false, false); err != nil {
		return nil, err
	}

	return p, nil
}

// parseJavaProfile returns a new profile from heapz or contentionz
// data. b is the profile bytes after the header.