SERVER-31818 Add server parameter to disable MarkThreadIdle

(cherry picked from commit 836ad1fdfae0243ecf88b4747e9ae4a1cd40a438)

1 files changed, 7 insertions, 0 deletions

diff --git a/src/mongo/util/tcmalloc_server_status_section.cpp b/src/mongo/util/tcmalloc_server_status_section.cpp
index c215956c0b3..e7623b068a1 100644
--- a/src/mongo/util/tcmalloc_server_status_section.cpp
+++ b/src/mongo/util/tcmalloc_server_status_section.cpp
@@ -38,6 +38,7 @@
 
 #include "mongo/base/init.h"
 #include "mongo/db/commands/server_status.h"
+#include "mongo/db/server_parameters.h"
 #include "mongo/db/service_context.h"
 #include "mongo/transport/transport_layer.h"
 #include "mongo/util/log.h"
@@ -55,11 +56,17 @@ const int kManyClients = 40;
 
 stdx::mutex tcmallocCleanupLock;
 
+MONGO_EXPORT_SERVER_PARAMETER(tcmallocEnableMarkThreadIdle, bool, true);
+
 /**
  *  Callback to allow TCMalloc to release freed memory to the central list at
  *  favorable times. Ideally would do some milder cleanup or scavenge...
  */
 void threadStateChange() {
+    if (!tcmallocEnableMarkThreadIdle.load()) {
+        return;
+    }
+
     if (getGlobalServiceContext()->getTransportLayer()->sessionStats().numOpenSessions <=
         kManyClients)
         return;