add turbo mode support

3 files changed, 29 insertions, 0 deletions

diff --git a/cpu/abstract_cpu.cpp b/cpu/abstract_cpu.cpp
index a6305d3..b084327 100644
--- a/cpu/abstract_cpu.cpp
+++ b/cpu/abstract_cpu.cpp
@@ -1,11 +1,16 @@
+#include <iostream>
+#include <fstream>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include "cpu.h"
 
+
 void abstract_cpu::measurement_start(void)
 {
 	unsigned int i;
+	ifstream file;
+	char filename[4096];
 
 	for (i = 0; i < cstates.size(); i++)
 		delete cstates[i];
@@ -15,6 +20,15 @@ void abstract_cpu::measurement_start(void)
 		delete pstates[i];
 	pstates.resize(0);
 
+
+	sprintf(filename, "/sys/devices/system/cpu/cpu%i/cpufreq/scaling_available_frequencies", number);
+	file.open(filename, ios::in);
+	if (file) {
+		file >> max_frequency;
+		file >> max_minus_one_frequency;
+		file.close();
+	}
+
 	for (i = 0; i < children.size(); i++)
 		if (children[i])
 			children[i]->measurement_start();
diff --git a/cpu/cpu.h b/cpu/cpu.h
index 80c911b..1d2dad9 100644
--- a/cpu/cpu.h
+++ b/cpu/cpu.h
@@ -51,6 +51,8 @@ protected:
 	int	first_cpu;
 	struct timeval	stamp_before, stamp_after;
 	double  time_factor;
+	uint64_t max_frequency;
+	uint64_t max_minus_one_frequency;
 public:
 	vector<class abstract_cpu *> children;
 	vector<struct idle_state *> cstates;
diff --git a/cpu/cpu_linux.cpp b/cpu/cpu_linux.cpp
index 9441953..1a964fd 100644
--- a/cpu/cpu_linux.cpp
+++ b/cpu/cpu_linux.cpp
@@ -14,6 +14,15 @@
 #include <sys/stat.h>
 #include <dirent.h>
 
+static int is_turbo(uint64_t freq, uint64_t max, uint64_t maxmo)
+{
+	if (freq != max)
+		return 0;
+	if (maxmo + 1000 != max)
+		return 0;
+	return 1;
+}
+
 
 void cpu_linux::measurement_start(void)
 {
@@ -103,6 +112,10 @@ void cpu_linux::measurement_start(void)
 
 			hz_to_human(f, line);
 
+			if (is_turbo(f, max_frequency, max_minus_one_frequency)) {
+				sprintf(line, _("Turbo Mode"));
+			}
+
 			if (f > 0)
 				update_pstate(f, line, count, 1);