func sessionUpdater(instanceNum int, numIterations int, edDb *db.EdDb, c chan string) {
for i := 0; i < numIterations; i++ {
edDb.RecordSessionActivity(0)
}
c <- fmt.Sprintf("sessionUpdater %d finished", instanceNum)
}
func personPutter(instanceNum int, numIterations int, edDb *db.EdDb, c chan string) {
for i := 0; i < numIterations; i++ {
which := rand.Intn(4)
edDb.UpsertPerson(which, names[which])
}
c <- fmt.Sprintf("dbPutter %d finished", instanceNum)
}