Changeset 72579 in vbox for trunk/src/VBox/VMM/include

Timestamp:

Jun 16, 2018 2:32:26 PM (7 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

123073

Message:

EM: Implemented a very simple history record replacement strategy. bugref:9044

File:

• trunk/src/VBox/VMM/include/EMInternal.h (modified) (1 diff)

trunk/src/VBox/VMM/include/EMInternal.h

@@ -506 +506 @@
     /** Exit history table (6KB). */
     EMEXITENTRY             aExitHistory[256];
+
+    /** Hit statistics for each lookup step. */
+    STAMCOUNTER             aStatHistoryRecHits[16];
+    /** Type change statistics for each lookup step. */
+    STAMCOUNTER             aStatHistoryRecTypeChanged[16];
+    /** Replacement statistics for each lookup step. */
+    STAMCOUNTER             aStatHistoryRecReplaced[16];
+    /** New record statistics for each lookup step. */
+    STAMCOUNTER             aStatHistoryRecNew[16];
     /** Number of exit records in use. */
     uint32_t                cExitRecordUsed;
-    /** Number of exit records collisions. */
-    uint32_t                cExitRecordCollisions;
+    /** Explicit padding. */
+    uint32_t                uPadding2;
     /** Exit records (32KB). (Aligned on 32 byte boundrary.) */
     EMEXITREC               aExitRecords[1024];