Remove auto network thread thing

src/config.hpp

@@ -19,7 +19,7 @@ struct ServerConfig {
   /// Number of accept threads for handling incoming connections
   int accept_threads = 1;
   /// Number of network I/O threads for epoll processing
-  int network_threads = 0; // 0 means use hardware_concurrency
+  int network_threads = 1;
   /// Event batch size for epoll processing
   int event_batch_size = 32;
 };

src/main.cpp

@@ -234,7 +234,7 @@ int main(int argc, char *argv[]) {
             << " bytes" << std::endl;
   std::cout << "Accept threads: " << config->server.accept_threads << std::endl;
   std::cout << "Network threads: " << config->server.network_threads
-            << " (0 = auto)" << std::endl;
+            << std::endl;
   std::cout << "Event batch size: " << config->server.event_batch_size
             << std::endl;
   std::cout << "Min request ID length: " << config->commit.min_request_id_length
@@ -262,14 +262,8 @@ int main(int argc, char *argv[]) {
     abort();
   }
 
-  // Network threads - use config value, fallback to hardware concurrency
+  // Network threads from configuration
   int networkThreads = config->server.network_threads;
-  if (networkThreads == 0) {
-    // TODO revisit
-    networkThreads = std::thread::hardware_concurrency();
-    if (networkThreads == 0)
-      networkThreads = 1; // ultimate fallback
-  }
 
   // Event batch size from configuration
   for (int i = 0; i < networkThreads; ++i) {