diff --git a/CPUMeter.c b/CPUMeter.c
index 8a23c487..badcedab 100644
--- a/CPUMeter.c
+++ b/CPUMeter.c
@@ -28,7 +28,8 @@ typedef enum {
    CPU_METER_STEAL = 5,
    CPU_METER_GUEST = 6,
    CPU_METER_IOWAIT = 7,
-   CPU_METER_ITEMCOUNT = 8, // number of entries in this enum
+   CPU_METER_FREQUENCY = 8,
+   CPU_METER_ITEMCOUNT = 9, // number of entries in this enum
 } CPUMeterValues;
 
 }*/
@@ -63,7 +64,30 @@ static void CPUMeter_updateValues(Meter* this, char* buffer, int size) {
    }
    memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
    double percent = Platform_setCPUValues(this, cpu);
-   xSnprintf(buffer, size, "%5.1f%%", percent);
+   if (this->pl->settings->showCPUFrequency) {
+      /* Initial frequency is in MHz. Emit it as GHz if it's larger than 1000MHz */
+      double cpuFrequency = this->values[CPU_METER_FREQUENCY];
+      char unit = 'M';
+      char cpuFrequencyBuffer[16];
+      if (cpuFrequency < 0) {
+         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "N/A");
+      } else {
+         if (cpuFrequency > 1000) {
+            cpuFrequency /= 1000;
+            unit = 'G';
+         }
+         xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "%.3f%cHz", cpuFrequency, unit);
+      }
+      if (this->pl->settings->showCPUUsage) {
+         xSnprintf(buffer, size, "%5.1f%% %s", percent, cpuFrequencyBuffer);
+      } else {
+         xSnprintf(buffer, size, "%s", cpuFrequencyBuffer);
+      }
+   } else if (this->pl->settings->showCPUUsage) {
+      xSnprintf(buffer, size, "%5.1f%%", percent);
+   } else if (size > 0) {
+      buffer[0] = '\0';
+   }
 }
 
 static void CPUMeter_display(Object* cast, RichString* out) {
diff --git a/CPUMeter.h b/CPUMeter.h
index 2f163968..6f8599a8 100644
--- a/CPUMeter.h
+++ b/CPUMeter.h
@@ -20,7 +20,8 @@ typedef enum {
    CPU_METER_STEAL = 5,
    CPU_METER_GUEST = 6,
    CPU_METER_IOWAIT = 7,
-   CPU_METER_ITEMCOUNT = 8, // number of entries in this enum
+   CPU_METER_FREQUENCY = 8,
+   CPU_METER_ITEMCOUNT = 9, // number of entries in this enum
 } CPUMeterValues;
 
 
diff --git a/DisplayOptionsPanel.c b/DisplayOptionsPanel.c
index ece4c7c5..0f44acc2 100644
--- a/DisplayOptionsPanel.c
+++ b/DisplayOptionsPanel.c
@@ -97,6 +97,8 @@ DisplayOptionsPanel* DisplayOptionsPanel_new(Settings* settings, ScreenManager*
    Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Count CPUs from 0 instead of 1"), &(settings->countCPUsFromZero)));
    Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Update process names on every refresh"), &(settings->updateProcessNames)));
    Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Add guest time in CPU meter percentage"), &(settings->accountGuestInCPUMeter)));
+   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Also show CPU percentage numerically"), &(settings->showCPUUsage)));
+   Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Also show CPU frequency"), &(settings->showCPUFrequency)));
    Panel_add(super, (Object*) CheckItem_newByRef(xStrdup("Enable the mouse"), &(settings->enableMouse)));
    return this;
 }
diff --git a/Settings.c b/Settings.c
index 69a94a8b..116595b4 100644
--- a/Settings.c
+++ b/Settings.c
@@ -45,6 +45,8 @@ typedef struct Settings_ {
 
    bool countCPUsFromZero;
    bool detailedCPUTime;
+   bool showCPUUsage;
+   bool showCPUFrequency;
    bool treeView;
    bool showProgramPath;
    bool hideThreads;
@@ -224,6 +226,10 @@ static bool Settings_read(Settings* this, const char* fileName) {
          this->detailedCPUTime = atoi(option[1]);
       } else if (String_eq(option[0], "cpu_count_from_zero")) {
          this->countCPUsFromZero = atoi(option[1]);
+      } else if (String_eq(option[0], "show_cpu_usage")) {
+         this->showCPUUsage = atoi(option[1]);
+      } else if (String_eq(option[0], "show_cpu_frequency")) {
+         this->showCPUFrequency = atoi(option[1]);
       } else if (String_eq(option[0], "update_process_names")) {
          this->updateProcessNames = atoi(option[1]);
       } else if (String_eq(option[0], "account_guest_in_cpu_meter")) {
@@ -315,6 +321,8 @@ bool Settings_write(Settings* this) {
    fprintf(fd, "header_margin=%d\n", (int) this->headerMargin);
    fprintf(fd, "detailed_cpu_time=%d\n", (int) this->detailedCPUTime);
    fprintf(fd, "cpu_count_from_zero=%d\n", (int) this->countCPUsFromZero);
+   fprintf(fd, "show_cpu_usage=%d\n", (int) this->showCPUUsage);
+   fprintf(fd, "show_cpu_frequency=%d\n", (int) this->showCPUFrequency);
    fprintf(fd, "update_process_names=%d\n", (int) this->updateProcessNames);
    fprintf(fd, "account_guest_in_cpu_meter=%d\n", (int) this->accountGuestInCPUMeter);
    fprintf(fd, "color_scheme=%d\n", (int) this->colorScheme);
@@ -344,6 +352,8 @@ Settings* Settings_new(int cpuCount) {
    this->highlightMegabytes = false;
    this->detailedCPUTime = false;
    this->countCPUsFromZero = false;
+   this->showCPUUsage = true;
+   this->showCPUFrequency = false;
    this->updateProcessNames = false;
    this->cpuCount = cpuCount;
    this->showProgramPath = true;
diff --git a/Settings.h b/Settings.h
index b9bcf87b..cf8217b5 100644
--- a/Settings.h
+++ b/Settings.h
@@ -36,6 +36,8 @@ typedef struct Settings_ {
 
    bool countCPUsFromZero;
    bool detailedCPUTime;
+   bool showCPUUsage;
+   bool showCPUFrequency;
    bool treeView;
    bool showProgramPath;
    bool hideThreads;
diff --git a/darwin/Platform.c b/darwin/Platform.c
index 27a7b850..a052ea8a 100644
--- a/darwin/Platform.c
+++ b/darwin/Platform.c
@@ -217,6 +217,8 @@ double Platform_setCPUValues(Meter* mtr, int cpu) {
    /* Convert to percent and return */
    total = mtr->values[CPU_METER_NICE] + mtr->values[CPU_METER_NORMAL] + mtr->values[CPU_METER_KERNEL];
 
+   mtr->values[CPU_METER_FREQUENCY] = -1;
+
    return CLAMP(total, 0.0, 100.0);
 }
 
diff --git a/dragonflybsd/Platform.c b/dragonflybsd/Platform.c
index 370943d7..250e50e7 100644
--- a/dragonflybsd/Platform.c
+++ b/dragonflybsd/Platform.c
@@ -179,6 +179,9 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 
    percent = CLAMP(percent, 0.0, 100.0);
    if (isnan(percent)) percent = 0.0;
+
+   v[CPU_METER_FREQUENCY] = -1;
+
    return percent;
 }
 
diff --git a/freebsd/Platform.c b/freebsd/Platform.c
index 5dd6ca41..16d02329 100644
--- a/freebsd/Platform.c
+++ b/freebsd/Platform.c
@@ -178,6 +178,9 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 
    percent = CLAMP(percent, 0.0, 100.0);
    if (isnan(percent)) percent = 0.0;
+
+   v[CPU_METER_FREQUENCY] = -1;
+
    return percent;
 }
 
diff --git a/linux/LinuxProcessList.c b/linux/LinuxProcessList.c
index 7717d5a4..5cbaee6a 100644
--- a/linux/LinuxProcessList.c
+++ b/linux/LinuxProcessList.c
@@ -74,6 +74,8 @@ typedef struct CPUData_ {
    unsigned long long int softIrqPeriod;
    unsigned long long int stealPeriod;
    unsigned long long int guestPeriod;
+
+   double frequency;
 } CPUData;
 
 typedef struct TtyDriver_ {
@@ -100,6 +102,10 @@ typedef struct LinuxProcessList_ {
 #define PROCDIR "/proc"
 #endif
 
+#ifndef PROCCPUINFOFILE
+#define PROCCPUINFOFILE PROCDIR "/cpuinfo"
+#endif
+
 #ifndef PROCSTATFILE
 #define PROCSTATFILE PROCDIR "/stat"
 #endif
@@ -1108,18 +1114,86 @@ static inline double LinuxProcessList_scanCPUTime(LinuxProcessList* this) {
       cpuData->stealTime = steal;
       cpuData->guestTime = virtalltime;
       cpuData->totalTime = totaltime;
+
    }
    double period = (double)this->cpus[0].totalPeriod / cpus;
    fclose(file);
    return period;
 }
 
+static inline double LinuxProcessList_scanCPUFrequency(LinuxProcessList* this) {
+   ProcessList* pl = (ProcessList*) this;
+   Settings* settings = pl->settings;
+
+   int cpus = this->super.cpuCount;
+   assert(cpus > 0);
+
+   for (int i = 0; i <= cpus; i++) {
+      CPUData* cpuData = &(this->cpus[i]);
+      cpuData->frequency = -1;
+   }
+
+   int numCPUsWithFrequency = 0;
+   double totalFrequency = 0;
+
+   if (settings->showCPUFrequency) {
+      FILE* file = fopen(PROCCPUINFOFILE, "r");
+      if (file == NULL) {
+         CRT_fatalError("Cannot open " PROCCPUINFOFILE);
+      }
+
+      int cpuid = -1;
+      double frequency;
+      while (!feof(file)) {
+         char buffer[PROC_LINE_LENGTH];
+         char *ok = fgets(buffer, PROC_LINE_LENGTH, file);
+         if (!ok) break;
+
+         if (
+            (sscanf(buffer, "processor : %d", &cpuid) == 1) ||
+            (sscanf(buffer, "processor: %d", &cpuid) == 1)
+         ) {
+            if (cpuid < 0 || cpuid > (cpus - 1)) {
+               char buffer[64];
+               xSnprintf(buffer, sizeof(buffer), PROCCPUINFOFILE " contains out-of-range CPU number %d", cpuid);
+               CRT_fatalError(buffer);
+            }
+         } else if (
+            (sscanf(buffer, "cpu MHz : %lf", &frequency) == 1) ||
+            (sscanf(buffer, "cpu MHz: %lf", &frequency) == 1)
+         ) {
+            if (cpuid < 0) {
+               CRT_fatalError(PROCCPUINFOFILE " is malformed: cpu MHz line without corresponding processor line");
+            }
+
+            int cpu = cpuid + 1;
+            CPUData* cpuData = &(this->cpus[cpu]);
+            cpuData->frequency = frequency;
+            numCPUsWithFrequency++;
+            totalFrequency += frequency;
+         } else if (buffer[0] == '\n') {
+            cpuid = -1;
+         }
+      }
+      fclose(file);
+
+      if (numCPUsWithFrequency > 0) {
+         this->cpus[0].frequency = totalFrequency / numCPUsWithFrequency;
+      }
+   }
+
+   double period = (double)this->cpus[0].totalPeriod / cpus;
+   return period;
+}
+
 void ProcessList_goThroughEntries(ProcessList* super) {
    LinuxProcessList* this = (LinuxProcessList*) super;
 
    LinuxProcessList_scanMemoryInfo(super);
    double period = LinuxProcessList_scanCPUTime(this);
 
+   LinuxProcessList_scanCPUFrequency(this);
+
    struct timeval tv;
    gettimeofday(&tv, NULL);
    LinuxProcessList_recurseProcTree(this, PROCDIR, NULL, period, tv);
diff --git a/linux/LinuxProcessList.h b/linux/LinuxProcessList.h
index 4e0acc80..24b94d87 100644
--- a/linux/LinuxProcessList.h
+++ b/linux/LinuxProcessList.h
@@ -47,6 +47,8 @@ typedef struct CPUData_ {
    unsigned long long int softIrqPeriod;
    unsigned long long int stealPeriod;
    unsigned long long int guestPeriod;
+
+   double frequency;
 } CPUData;
 
 typedef struct TtyDriver_ {
@@ -73,6 +75,10 @@ typedef struct LinuxProcessList_ {
 #define PROCDIR "/proc"
 #endif
 
+#ifndef PROCCPUINFOFILE
+#define PROCCPUINFOFILE PROCDIR "/cpuinfo"
+#endif
+
 #ifndef PROCSTATFILE
 #define PROCSTATFILE PROCDIR "/stat"
 #endif
diff --git a/linux/Platform.c b/linux/Platform.c
index 130403f2..afdd3f02 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -198,6 +198,9 @@ double Platform_setCPUValues(Meter* this, int cpu) {
    }
    percent = CLAMP(percent, 0.0, 100.0);
    if (isnan(percent)) percent = 0.0;
+
+   v[CPU_METER_FREQUENCY] = cpuData->frequency;
+
    return percent;
 }
 
diff --git a/linux/Platform.h b/linux/Platform.h
index 14eafbfc..bb2c4b09 100644
--- a/linux/Platform.h
+++ b/linux/Platform.h
@@ -47,6 +47,4 @@ extern char* Platform_getProcessEnv(pid_t pid);
 
 extern void Platform_getPressureStall(const char *file, bool some, double* ten, double* sixty, double* threehundred);
 
-void Platform_getPressureStall(const char *file, bool some, double* ten, double* sixty, double* threehundred);
-
 #endif
diff --git a/openbsd/Platform.c b/openbsd/Platform.c
index 343f4e79..0f5279e8 100644
--- a/openbsd/Platform.c
+++ b/openbsd/Platform.c
@@ -170,6 +170,7 @@ double Platform_setCPUValues(Meter* this, int cpu) {
       v[CPU_METER_STEAL]   = 0.0;
       v[CPU_METER_GUEST]   = 0.0;
       v[CPU_METER_IOWAIT]  = 0.0;
+      v[CPU_METER_FREQUENCY] = -1;
       Meter_setItems(this, 8);
       totalPercent = v[0]+v[1]+v[2]+v[3];
    } else {
diff --git a/solaris/Platform.c b/solaris/Platform.c
index 396b502c..1322598e 100644
--- a/solaris/Platform.c
+++ b/solaris/Platform.c
@@ -203,6 +203,9 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 
    percent = CLAMP(percent, 0.0, 100.0);
    if (isnan(percent)) percent = 0.0;
+
+   v[CPU_METER_FREQUENCY] = -1;
+
    return percent;
 }
 
diff --git a/unsupported/Platform.c b/unsupported/Platform.c
index e4c0e8ce..0e46a348 100644
--- a/unsupported/Platform.c
+++ b/unsupported/Platform.c
@@ -108,8 +108,11 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   (void) this;
    (void) cpu;
+
+   double* v = this->values;
+   v[CPU_METER_FREQUENCY] = -1;
+
    return 0.0;
 }