optimize memory usage
Signed-off-by: ethanvc <xht_xht@qq.com>
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parent
80d3f0b5b3
commit
6f666c7bd2
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@ -83,19 +83,16 @@ func (s MetricSorter) Less(i, j int) bool {
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// MetricFamilies pruned and the remaining MetricFamilies sorted by name within
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// the slice, with the contained Metrics sorted within each MetricFamily.
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func NormalizeMetricFamilies(metricFamiliesByName map[string]*dto.MetricFamily) []*dto.MetricFamily {
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result := make([]*dto.MetricFamily, 0, len(metricFamiliesByName))
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for _, mf := range metricFamiliesByName {
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sort.Sort(MetricSorter(mf.Metric))
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}
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names := make([]string, 0, len(metricFamiliesByName))
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for name, mf := range metricFamiliesByName {
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if len(mf.Metric) > 0 {
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names = append(names, name)
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if len(mf.Metric) == 0 {
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continue
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}
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sort.Sort(MetricSorter(mf.Metric))
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result = append(result, mf)
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}
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sort.Strings(names)
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result := make([]*dto.MetricFamily, 0, len(names))
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for _, name := range names {
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result = append(result, metricFamiliesByName[name])
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}
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sort.Slice(result, func(i, j int) bool {
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return *result[i].Name < *result[j].Name
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})
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return result
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}
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