Changeset 21395 in vbox for trunk/src

Timestamp:

Jul 8, 2009 1:30:34 PM (16 years ago)

Author:

vboxsync

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

49765

Message:

Stop performance counter sampling when the host goes into suspend mode. Restart it during resume.

Location:

trunk/src/VBox/Main

Files:

• HostImpl.cpp (modified) (1 diff)
• HostPower.cpp (modified) (2 diffs)
• PerformanceImpl.cpp (modified) (1 diff)
• include/PerformanceImpl.h (modified) (1 diff)

trunk/src/VBox/Main/HostImpl.cpp

@@ -256 +256 @@
     f3DAccelerationSupported = false;
 
+#if 0
 #ifdef VBOX_WITH_CROGL
     f3DAccelerationSupported = is3DAccelerationSupported();
 #endif /* VBOX_WITH_CROGL */
-
+#endif
     setReady(true);
     return S_OK;

trunk/src/VBox/Main/HostPower.cpp

@@ -55 +55 @@
             LogFunc (("SUSPEND\n"));
 
+#ifdef VBOX_WITH_RESOURCE_USAGE_API
+            /* Suspend performance sampling to avoid unnecessary callbacks due to jumps in time. */
+            PerformanceCollector *perfcollector = mVirtualBox->performanceCollector();
+
+            if (perfcollector)
+                perfcollector->suspendSampling();
+#endif
             mVirtualBox->getOpenedMachinesAndControls (machines, controls);
 
@@ -103 +110 @@
 
             LogFunc (("Resumed %d VMs\n", resumed));
+
+#ifdef VBOX_WITH_RESOURCE_USAGE_API
+            /* Resume the performance sampling. */
+            PerformanceCollector *perfcollector = mVirtualBox->performanceCollector();
+
+            if (perfcollector)
+                perfcollector->resumeSampling();
+#endif
 
             mConsoles.clear();

trunk/src/VBox/Main/PerformanceImpl.cpp

@@ -522 +522 @@
 }
 
+void PerformanceCollector::suspendSampling()
+{
+    AutoCaller autoCaller (this);
+    if (!SUCCEEDED (autoCaller.rc())) return;
+
+    int rc = RTTimerLRStop(m.sampler);
+    AssertRC(rc);
+}
+
+void PerformanceCollector::resumeSampling()
+{
+    AutoCaller autoCaller (this);
+    if (!SUCCEEDED (autoCaller.rc())) return;
+
+    int rc = RTTimerLRStart(m.sampler, 0);
+    AssertRC(rc);
+}
+
+
 // private methods
 ///////////////////////////////////////////////////////////////////////////////

trunk/src/VBox/Main/include/PerformanceImpl.h

@@ -189 +189 @@
     void unregisterMetricsFor (const ComPtr <IUnknown> &object);
 
+    void suspendSampling();
+    void resumeSampling();
+
     // public methods for internal purposes only
     // (ensure there is a caller and a read lock before calling them!)