dur stats beginnings

1 files changed, 21 insertions, 0 deletions

diff --git a/db/dur_stats.h b/db/dur_stats.h
new file mode 100644
index 00000000000..f9fe3f7eb7b
--- /dev/null
+++ b/db/dur_stats.h
@@ -0,0 +1,21 @@
+// @file dur_stats.h

+

+namespace mongo {

+    namespace dur {

+

+        /** journalling stats.  the model here is that the commit thread is the only writer, and that reads are 

+            uncommon (from a serverStatus command and such).  Thus, there should not be multicore chatter overhead.

+        */

+        struct Stats { 

+            Stats();

+            struct S { 

+                unsigned _commits;

+                unsigned _dittos;

+                unsigned long long _journaledBytes;

+                unsigned long long _writeToDataFilesBytes;

+            } curr;

+        };

+        extern Stats stats;

+

+    }

+}