const runtime.traceEvEventBatch

2 uses

	runtime (current package)
		tracebuf.go#L190: 		w.byte(byte(traceEvEventBatch))
		traceevent.go#L29: 	traceEvEventBatch // start of per-M batch of events [generation, M ID, timestamp, batch length]

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)