* go-metrics: fork library and introduce ResettingTimer and InfluxDB reporter. * vendor: change nonsense/go-metrics to ethersphere/go-metrics * go-metrics: add tests. move ResettingTimer logic from reporter to type. * all, metrics: pull in metrics package in go-ethereum * metrics/test: make sure metrics are enabled for tests * metrics: apply gosimple rules * metrics/exp, internal/debug: init expvar endpoint when starting pprof server * internal/debug: tiny comment formatting fix
		
			
				
	
	
		
			74 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package metrics
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import (
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	"testing"
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	"time"
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)
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func BenchmarkMeter(b *testing.B) {
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	m := NewMeter()
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	b.ResetTimer()
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	for i := 0; i < b.N; i++ {
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		m.Mark(1)
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	}
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}
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func TestGetOrRegisterMeter(t *testing.T) {
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	r := NewRegistry()
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	NewRegisteredMeter("foo", r).Mark(47)
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	if m := GetOrRegisterMeter("foo", r); 47 != m.Count() {
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		t.Fatal(m)
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	}
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}
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func TestMeterDecay(t *testing.T) {
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	ma := meterArbiter{
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		ticker: time.NewTicker(time.Millisecond),
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		meters: make(map[*StandardMeter]struct{}),
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	}
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	m := newStandardMeter()
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	ma.meters[m] = struct{}{}
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	go ma.tick()
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	m.Mark(1)
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	rateMean := m.RateMean()
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	time.Sleep(100 * time.Millisecond)
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	if m.RateMean() >= rateMean {
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		t.Error("m.RateMean() didn't decrease")
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	}
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}
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func TestMeterNonzero(t *testing.T) {
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	m := NewMeter()
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	m.Mark(3)
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	if count := m.Count(); 3 != count {
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		t.Errorf("m.Count(): 3 != %v\n", count)
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	}
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}
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func TestMeterStop(t *testing.T) {
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	l := len(arbiter.meters)
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	m := NewMeter()
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	if len(arbiter.meters) != l+1 {
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		t.Errorf("arbiter.meters: %d != %d\n", l+1, len(arbiter.meters))
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	}
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	m.Stop()
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	if len(arbiter.meters) != l {
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		t.Errorf("arbiter.meters: %d != %d\n", l, len(arbiter.meters))
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	}
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}
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func TestMeterSnapshot(t *testing.T) {
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	m := NewMeter()
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	m.Mark(1)
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	if snapshot := m.Snapshot(); m.RateMean() != snapshot.RateMean() {
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		t.Fatal(snapshot)
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	}
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}
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func TestMeterZero(t *testing.T) {
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	m := NewMeter()
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	if count := m.Count(); 0 != count {
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		t.Errorf("m.Count(): 0 != %v\n", count)
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	}
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}
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