Changeset 72657 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Jun 22, 2018 11:05:11 AM (7 years ago)

Author:

vboxsync

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

123168

Message:

EM: Make the EMHistoryExec parameters adjustable. bugref:9198

File:

• trunk/src/VBox/VMM/VMMR3/EM.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR3/EM.cpp

@@ -183 +183 @@
         pVM->aCpus[i].em.s.fExitOptimizationEnabledR0                = fExitOptimizationEnabledR0;
         pVM->aCpus[i].em.s.fExitOptimizationEnabledR0PreemptDisabled = fExitOptimizationEnabledR0PreemptDisabled;
+
+        pVM->aCpus[i].em.s.cHistoryExecMaxInstructions               = 8192;
+        pVM->aCpus[i].em.s.cHistoryProbeMinInstructions              = 48;
+        pVM->aCpus[i].em.s.cHistoryProbeMaxInstructionsWithoutExit   = 24;
+#ifdef RT_OS_WINDOWS
+        if (VM_IS_NEM_ENABLED(pVM))
+        {
+            pVM->aCpus[i].em.s.cHistoryProbeMaxInstructionsWithoutExit = 32;
+            pVM->aCpus[i].em.s.cHistoryProbeMinInstructions            = 64;
+        }
+#endif
     }