func TestLargeSwarm(t *testing.T) {
if testing.Short() {
t.SkipNow()
}
numInstances := 100
numBlocks := 2
if detectrace.WithRace() {
// when running with the race detector, 500 instances launches
// well over 8k goroutines. This hits a race detector limit.
numInstances = 100
} else if travis.IsRunning() {
numInstances = 200
} else {
t.Parallel()
}
PerformDistributionTest(t, numInstances, numBlocks)
}
func TestStreamsStress(t *testing.T) {
ctx := context.Background()
nnodes := 100
if detectrace.WithRace() {
nnodes = 50
}
mn, err := FullMeshConnected(context.Background(), nnodes)
if err != nil {
t.Fatal(err)
}
hosts := mn.Hosts()
for _, h := range hosts {
ponger := makePonger(string(protocol.TestingID))
h.SetStreamHandler(protocol.TestingID, ponger)
}
var wg sync.WaitGroup
for i := 0; i < 1000; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
from := rand.Intn(len(hosts))
to := rand.Intn(len(hosts))
s, err := hosts[from].NewStream(ctx, hosts[to].ID(), protocol.TestingID)
if err != nil {
log.Debugf("%d (%s) %d (%s)", from, hosts[from], to, hosts[to])
panic(err)
}
log.Infof("%d start pinging", i)
makePinger("pingpong", rand.Intn(100))(s)
log.Infof("%d done pinging", i)
}(i)
}
wg.Wait()
}