Slow down when getting too far ahead of server.

1 files changed, 7 insertions, 0 deletions

diff --git a/fnet/src/tests/connection_spread/connection_spread_test.cpp b/fnet/src/tests/connection_spread/connection_spread_test.cpp
index f1eac229c89..0d9c0cc6e18 100644
--- a/fnet/src/tests/connection_spread/connection_spread_test.cpp
+++ b/fnet/src/tests/connection_spread/connection_spread_test.cpp
@@ -74,6 +74,13 @@ TEST_F("require that connections are spread among transport threads", Fixture)
     std::vector<FNET_Connection *> connections;
     for (size_t i = 0; i < 256; ++i) {
         std::this_thread::sleep_for(1ms);
+        if (i > f1.server.GetNumIOComponents() + 16) {
+            /*
+             * tcp listen backlog is limited (cf. SOMAXCONN).
+             * Slow down when getting too far ahead of server.
+             */
+            std::this_thread::sleep_for(10ms);
+        }
         connections.push_back(f1.client.Connect(spec.c_str(), &f1.streamer));
         ASSERT_TRUE(connections.back());
     }