Better VirtualMemorySize on windows

1 files changed, 4 insertions, 3 deletions

diff --git a/util/processinfo_win32.cpp b/util/processinfo_win32.cpp
index 978c52d2d58..7148cf3fba1 100644
--- a/util/processinfo_win32.cpp
+++ b/util/processinfo_win32.cpp
@@ -46,9 +46,10 @@ namespace mongo {
     }
     
     int ProcessInfo::getVirtualMemorySize(){
-        PROCESS_MEMORY_COUNTERS pmc;
-        assert( GetProcessMemoryInfo( GetCurrentProcess() , &pmc, sizeof(pmc) ) );
-        return _wconvertmtos( pmc.PagefileUsage );
+        MEMORYSTATUSEX mse;
+	mse.dwLength = sizeof(mse);
+        assert( GlobalMemoryStatusEx( &mse ) );
+        return (mse.ullTotalVirtual - mse.ullAvailVirtual) / (1024 * 1024) ;
     }
     
     int ProcessInfo::getResidentSize(){