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-rw-r--r--runsc/boot/loader.go8
1 files changed, 8 insertions, 0 deletions
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go
index 53e61e43d..41027416d 100644
--- a/runsc/boot/loader.go
+++ b/runsc/boot/loader.go
@@ -847,9 +847,17 @@ func newEmptyNetworkStack(conf *Config, clock tcpip.Clock) (inet.Stack, error) {
// privileges.
Raw: true,
})}
+
+ // Enable SACK Recovery.
if err := s.Stack.SetTransportProtocolOption(tcp.ProtocolNumber, tcp.SACKEnabled(true)); err != nil {
return nil, fmt.Errorf("failed to enable SACK: %v", err)
}
+
+ // Enable Receive Buffer Auto-Tuning.
+ if err := s.Stack.SetTransportProtocolOption(tcp.ProtocolNumber, tcpip.ModerateReceiveBufferOption(true)); err != nil {
+ return nil, fmt.Errorf("SetTransportProtocolOption failed: %v", err)
+ }
+
return &s, nil
default: