Changeset 11478 in vbox for trunk/src/VBox/Main/linux

Timestamp:

Aug 19, 2008 12:11:10 PM (17 years ago)

Author:

vboxsync

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

34963

Message:

PerfAPI: Linux implementation of CPU/MHz counter

File:

• trunk/src/VBox/Main/linux/PerformanceLinux.cpp (modified) (2 diffs)

trunk/src/VBox/Main/linux/PerformanceLinux.cpp

@@ -25 +25 @@
 #include <iprt/alloc.h>
 #include <iprt/err.h>
+#include <iprt/mp.h>
 #include <iprt/param.h>
 #include <iprt/string.h>
@@ -96 +97 @@
 int CollectorLinux::getHostCpuMHz(ULONG *mhz)
 {
-    return E_NOTIMPL;
+    RTCPUID nProcessors = RTMpGetCount();
+    uint64_t uTotalMHz  = 0;
+
+    for (RTCPUID i = 0; i < nProcessors; ++i)
+        uTotalMHz += RTMpGetCurFrequency(i);
+
+    *mhz = (ULONG)(uTotalMHz / nProcessors);
+    return VINF_SUCCESS;
 }