feat: support api layer and global headers for testcase

internal/boomer/boomer.go

@@ -16,6 +16,9 @@ type Boomer struct {
 
 	memoryProfile         string
 	memoryProfileDuration time.Duration
+
+	disableKeepalive   bool
+	disableCompression bool
 }
 
 // NewStandaloneBoomer returns a new Boomer, which can run without master.
@@ -52,6 +55,24 @@ func (b *Boomer) SetRateLimiter(maxRPS int64, requestIncreaseRate string) {
 	}
 }
 
+// SetDisableKeepAlive disable keep-alive for tcp
+func (b *Boomer) SetDisableKeepAlive(disableKeepalive bool) {
+	b.disableKeepalive = disableKeepalive
+}
+
+// SetDisableCompression disable compression to prevent the Transport from requesting compression with an "Accept-Encoding: gzip"
+func (b *Boomer) SetDisableCompression(disableCompression bool) {
+	b.disableCompression = disableCompression
+}
+
+func (b *Boomer) GetDisableKeepAlive() bool {
+	return b.disableKeepalive
+}
+
+func (b *Boomer) GetDisableCompression() bool {
+	return b.disableCompression
+}
+
 // SetLoopCount set loop count for test.
 func (b *Boomer) SetLoopCount(loopCount int64) {
 	b.localRunner.loop = &Loop{loopCount: loopCount}

internal/boomer/output.go

@@ -255,6 +255,10 @@ func deserializeStatsEntry(stat interface{}) (entryOutput *statsEntryOutput, err
 	var duration float64
 	if entry.Name == "Total" {
 		duration = float64(entry.LastRequestTimestamp - entry.StartTime)
+		// fix: avoid divide by zero
+		if duration < 1 {
+			duration = 1
+		}
 	} else {
 		duration = float64(reportStatsInterval / time.Second)
 	}