Contribution by Philipp Richter: Display IO-Wait, IRQ and Soft-IRQ values in status bar

(minor modifications: default to false, add help)

CPUMeter.c

@@ -19,14 +19,14 @@ in the source distribution for its full text.
 #include <assert.h>
 
 int CPUMeter_attributes[] = {
-   CPU_NICE, CPU_NORMAL, CPU_KERNEL
+   CPU_NICE, CPU_NORMAL, CPU_KERNEL, CPU_IOWAIT, CPU_IRQ, CPU_SOFTIRQ
 };
 
 MeterType CPUMeter = {
    .setValues = CPUMeter_setValues, 
    .display = CPUMeter_display,
    .mode = BAR_METERMODE,
-   .items = 3,
+   .items = 6,
    .total = 100.0,
    .attributes = CPUMeter_attributes, 
    .name = "CPU",
@@ -71,10 +71,22 @@ void CPUMeter_setValues(Meter* this, char* buffer, int size) {
    ProcessList* pl = this->pl;
    int processor = this->param;
    double total = (double) pl->totalPeriod[processor];
+   double cpu;
    this->values[0] = pl->nicePeriod[processor] / total * 100.0;
    this->values[1] = pl->userPeriod[processor] / total * 100.0;
-   this->values[2] = pl->systemPeriod[processor] / total * 100.0;
-   double cpu = MIN(100.0, MAX(0.0, (this->values[0]+this->values[1]+this->values[2])));
+   if (pl->expandSystemTime) {
+      this->values[2] = pl->systemPeriod[processor] / total * 100.0;
+      this->values[3] = pl->ioWaitPeriod[processor] / total * 100.0;
+      this->values[4] = pl->irqPeriod[processor] / total * 100.0;
+      this->values[5] = pl->softIrqPeriod[processor] / total * 100.0;
+      this->type->items = 6;
+      cpu = MIN(100.0, MAX(0.0, (this->values[0]+this->values[1]+this->values[2]+
+                       this->values[3]+this->values[4]+this->values[5])));
+   } else {
+      this->values[2] = pl->systemAllPeriod[processor] / total * 100.0;
+      this->type->items = 3;
+      cpu = MIN(100.0, MAX(0.0, (this->values[0]+this->values[1]+this->values[2])));
+   }
    snprintf(buffer, size, "%5.1f%%", cpu );
 }
 
@@ -85,12 +97,30 @@ void CPUMeter_display(Object* cast, RichString* out) {
    sprintf(buffer, "%5.1f%% ", this->values[1]);
    RichString_append(out, CRT_colors[METER_TEXT], ":");
    RichString_append(out, CRT_colors[CPU_NORMAL], buffer);
-   sprintf(buffer, "%5.1f%% ", this->values[2]);
-   RichString_append(out, CRT_colors[METER_TEXT], "sys:");
-   RichString_append(out, CRT_colors[CPU_KERNEL], buffer);
-   sprintf(buffer, "%5.1f%% ", this->values[0]);
-   RichString_append(out, CRT_colors[METER_TEXT], "low:");
-   RichString_append(out, CRT_colors[CPU_NICE], buffer);
+   if (this->pl->expandSystemTime) {
+      sprintf(buffer, "%5.1f%% ", this->values[2]);
+      RichString_append(out, CRT_colors[METER_TEXT], "sy:");
+      RichString_append(out, CRT_colors[CPU_KERNEL], buffer);
+      sprintf(buffer, "%5.1f%% ", this->values[0]);
+      RichString_append(out, CRT_colors[METER_TEXT], "ni:");
+      RichString_append(out, CRT_colors[CPU_NICE], buffer);
+      sprintf(buffer, "%5.1f%% ", this->values[3]);
+      RichString_append(out, CRT_colors[METER_TEXT], "wa:");
+      RichString_append(out, CRT_colors[CPU_IOWAIT], buffer);
+      sprintf(buffer, "%5.1f%% ", this->values[4]);
+      RichString_append(out, CRT_colors[METER_TEXT], "hi:");
+      RichString_append(out, CRT_colors[CPU_IRQ], buffer);
+      sprintf(buffer, "%5.1f%% ", this->values[4]);
+      RichString_append(out, CRT_colors[METER_TEXT], "si:");
+      RichString_append(out, CRT_colors[CPU_SOFTIRQ], buffer);
+   } else {
+      sprintf(buffer, "%5.1f%% ", this->values[2]);
+      RichString_append(out, CRT_colors[METER_TEXT], "sys:");
+      RichString_append(out, CRT_colors[CPU_KERNEL], buffer);
+      sprintf(buffer, "%5.1f%% ", this->values[0]);
+      RichString_append(out, CRT_colors[METER_TEXT], "low:");
+      RichString_append(out, CRT_colors[CPU_NICE], buffer);
+   }
 }
 
 void AllCPUsMeter_init(Meter* this) {

CRT.c

@@ -93,6 +93,9 @@ typedef enum ColorElements_ {
    CPU_NORMAL,
    CPU_KERNEL,
    HELP_BOLD,
+   CPU_IOWAIT,
+   CPU_IRQ,
+   CPU_SOFTIRQ,
    LAST_COLORELEMENT
 } ColorElements;
 
@@ -251,6 +254,9 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = A_BOLD;
       CRT_colors[CHECK_MARK] = A_NORMAL;
       CRT_colors[CHECK_TEXT] = A_NORMAL;
+      CRT_colors[CPU_IOWAIT] = A_BOLD;
+      CRT_colors[CPU_IRQ] = A_BOLD;
+      CRT_colors[CPU_SOFTIRQ] = A_BOLD;
    } else if (CRT_colorScheme == COLORSCHEME_BLACKONWHITE) {
       CRT_colors[RESET_COLOR] = ColorPair(Black,White);
       CRT_colors[DEFAULT_COLOR] = ColorPair(Black,White);
@@ -303,6 +309,9 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = ColorPair(Blue,White);
       CRT_colors[CHECK_MARK] = ColorPair(Black,White);
       CRT_colors[CHECK_TEXT] = ColorPair(Black,White);
+      CRT_colors[CPU_IOWAIT] = ColorPair(Yellow,White);
+      CRT_colors[CPU_IRQ] = ColorPair(Blue,White);
+      CRT_colors[CPU_SOFTIRQ] = ColorPair(Blue,White);
    } else if (CRT_colorScheme == COLORSCHEME_BLACKONWHITE2) {
       CRT_colors[RESET_COLOR] = ColorPair(Black,Black);
       CRT_colors[DEFAULT_COLOR] = ColorPair(Black,Black);
@@ -355,6 +364,9 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = ColorPair(Blue,Black);
       CRT_colors[CHECK_MARK] = ColorPair(Black,Black);
       CRT_colors[CHECK_TEXT] = ColorPair(Black,Black);
+      CRT_colors[CPU_IOWAIT] = ColorPair(Yellow,Black);
+      CRT_colors[CPU_IRQ] = A_BOLD | ColorPair(Blue,Black);
+      CRT_colors[CPU_SOFTIRQ] = ColorPair(Blue,Black);
    } else if (CRT_colorScheme == COLORSCHEME_MIDNIGHT) {
       CRT_colors[RESET_COLOR] = ColorPair(White,Blue);
       CRT_colors[DEFAULT_COLOR] = ColorPair(White,Blue);
@@ -407,6 +419,9 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = ColorPair(Cyan,Blue);
       CRT_colors[CHECK_MARK] = A_BOLD | ColorPair(White,Blue);
       CRT_colors[CHECK_TEXT] = A_NORMAL | ColorPair(White,Blue);
+      CRT_colors[CPU_IOWAIT] = A_BOLD | ColorPair(Yellow,Blue);
+      CRT_colors[CPU_IRQ] = A_BOLD | ColorPair(Black,Blue);
+      CRT_colors[CPU_SOFTIRQ] = ColorPair(Black,Blue);
    } else if (CRT_colorScheme == COLORSCHEME_BLACKNIGHT) {
       CRT_colors[RESET_COLOR] = ColorPair(Cyan,Black);
       CRT_colors[DEFAULT_COLOR] = ColorPair(Cyan,Black);
@@ -459,6 +474,9 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = ColorPair(Green,Black);
       CRT_colors[CHECK_MARK] = A_BOLD | ColorPair(Green,Black);
       CRT_colors[CHECK_TEXT] = ColorPair(Cyan,Black);
+      CRT_colors[CPU_IOWAIT] = ColorPair(Yellow,Black);
+      CRT_colors[CPU_IRQ] = A_BOLD | ColorPair(Blue,Black);
+      CRT_colors[CPU_SOFTIRQ] = ColorPair(Blue,Black);
    } else {
       /* Default */
       CRT_colors[RESET_COLOR] = ColorPair(White,Black);
@@ -512,5 +530,8 @@ void CRT_setColors(int colorScheme) {
       CRT_colors[CHECK_BOX] = ColorPair(Cyan,Black);
       CRT_colors[CHECK_MARK] = A_BOLD;
       CRT_colors[CHECK_TEXT] = A_NORMAL;
+      CRT_colors[CPU_IOWAIT] = ColorPair(Cyan,Black);
+      CRT_colors[CPU_IRQ] = ColorPair(Yellow,Black);
+      CRT_colors[CPU_SOFTIRQ] = ColorPair(Magenta,Black);
    }
 }

CRT.h

@@ -95,6 +95,9 @@ typedef enum ColorElements_ {
    CPU_NORMAL,
    CPU_KERNEL,
    HELP_BOLD,
+   CPU_IOWAIT,
+   CPU_IRQ,
+   CPU_SOFTIRQ,
    LAST_COLORELEMENT
 } ColorElements;
 

DisplayOptionsPanel.c

@@ -38,6 +38,7 @@ DisplayOptionsPanel* DisplayOptionsPanel_new(Settings* settings, ScreenManager*
    Panel_add(super, (Object*) CheckItem_new(String_copy("Highlight program \"basename\""), &(settings->pl->highlightBaseName)));
    Panel_add(super, (Object*) CheckItem_new(String_copy("Highlight megabytes in memory counters"), &(settings->pl->highlightMegabytes)));
    Panel_add(super, (Object*) CheckItem_new(String_copy("Leave a margin around header"), &(settings->header->margin)));
+   Panel_add(super, (Object*) CheckItem_new(String_copy("Split System Time into System/IO-Wait/Hard-IRQ/Soft-IRQ"), &(settings->pl->expandSystemTime)));
    return this;
 }
 

ProcessList.c

@@ -74,13 +74,23 @@ typedef struct ProcessList_ {
    unsigned long long int* totalTime;
    unsigned long long int* userTime;
    unsigned long long int* systemTime;
+   unsigned long long int* systemAllTime;
    unsigned long long int* idleTime;
    unsigned long long int* niceTime;
+   unsigned long long int* ioWaitTime;
+   unsigned long long int* irqTime;
+   unsigned long long int* softIrqTime;
+   unsigned long long int* stealTime;
    unsigned long long int* totalPeriod;
    unsigned long long int* userPeriod;
    unsigned long long int* systemPeriod;
+   unsigned long long int* systemAllPeriod;
    unsigned long long int* idlePeriod;
    unsigned long long int* nicePeriod;
+   unsigned long long int* ioWaitPeriod;
+   unsigned long long int* irqPeriod;
+   unsigned long long int* softIrqPeriod;
+   unsigned long long int* stealPeriod;
 
    unsigned long long int totalMem;
    unsigned long long int usedMem;
@@ -198,16 +208,29 @@ ProcessList* ProcessList_new(UsersTable* usersTable) {
    } while (String_startsWith(buffer, "cpu"));
    fclose(status);
    this->processorCount = procs - 1;
+   this->totalTime = calloc(procs * FIELDS, sizeof(long long int));
+   this->userTime = 
+
    this->totalTime = calloc(procs, sizeof(long long int));
    this->userTime = calloc(procs, sizeof(long long int));
    this->systemTime = calloc(procs, sizeof(long long int));
+   this->systemAllTime = calloc(procs, sizeof(long long int));
    this->niceTime = calloc(procs, sizeof(long long int));
    this->idleTime = calloc(procs, sizeof(long long int));
+   this->ioWaitTime = calloc(procs, sizeof(long long int));
+   this->irqTime = calloc(procs, sizeof(long long int));
+   this->softIrqTime = calloc(procs, sizeof(long long int));
+   this->stealTime = calloc(procs, sizeof(long long int));
    this->totalPeriod = calloc(procs, sizeof(long long int));
    this->userPeriod = calloc(procs, sizeof(long long int));
    this->systemPeriod = calloc(procs, sizeof(long long int));
+   this->systemAllPeriod = calloc(procs, sizeof(long long int));
    this->nicePeriod = calloc(procs, sizeof(long long int));
    this->idlePeriod = calloc(procs, sizeof(long long int));
+   this->ioWaitPeriod = calloc(procs, sizeof(long long int));
+   this->irqPeriod = calloc(procs, sizeof(long long int));
+   this->softIrqPeriod = calloc(procs, sizeof(long long int));
+   this->stealPeriod = calloc(procs, sizeof(long long int));
    for (int i = 0; i < procs; i++) {
       this->totalTime[i] = 1;
       this->totalPeriod[i] = 1;
@@ -228,6 +251,7 @@ ProcessList* ProcessList_new(UsersTable* usersTable) {
    this->treeView = false;
    this->highlightBaseName = false;
    this->highlightMegabytes = false;
+   this->expandSystemTime = false;
 
    return this;
 }
@@ -241,13 +265,23 @@ void ProcessList_delete(ProcessList* this) {
    free(this->totalTime);
    free(this->userTime);
    free(this->systemTime);
+   free(this->systemAllTime);
    free(this->niceTime);
    free(this->idleTime);
+   free(this->ioWaitTime);
+   free(this->irqTime);
+   free(this->softIrqTime);
+   free(this->stealTime);
    free(this->totalPeriod);
    free(this->userPeriod);
    free(this->systemPeriod);
+   free(this->systemAllPeriod);
    free(this->nicePeriod);
    free(this->idlePeriod);
+   free(this->ioWaitPeriod);
+   free(this->irqPeriod);
+   free(this->softIrqPeriod);
+   free(this->stealPeriod);
 
    #ifdef DEBUG
    fclose(this->traceFile);
@@ -596,7 +630,7 @@ void ProcessList_processEntries(ProcessList* this, char* dirname, int parent, fl
 }
 
 void ProcessList_scan(ProcessList* this) {
-   unsigned long long int usertime, nicetime, systemtime, idletime, totaltime;
+   unsigned long long int usertime, nicetime, systemtime, systemalltime, idletime, totaltime;
    unsigned long long int swapFree;
 
    FILE* status;
@@ -656,22 +690,37 @@ void ProcessList_scan(ProcessList* this) {
       }
       // Fields existing on kernels >= 2.6
       // (and RHEL's patched kernel 2.4...)
-      systemtime += ioWait + irq + softIrq + steal;
-      totaltime = usertime + nicetime + systemtime + idletime;
+      systemalltime = systemtime + ioWait + irq + softIrq + steal;
+      totaltime = usertime + nicetime + systemalltime + idletime;
       assert (usertime >= this->userTime[i]);
       assert (nicetime >= this->niceTime[i]);
       assert (systemtime >= this->systemTime[i]);
       assert (idletime >= this->idleTime[i]);
       assert (totaltime >= this->totalTime[i]);
+      assert (systemalltime >= this->systemAllTime[i]);
+      assert (ioWait >= this->ioWaitTime[i]);
+      assert (irqTime >= this->irqTime[i]);
+      assert (softIrqTime >= this->softIrqTime[i]);
+      assert (stealTime >= this->stealTime[i]);
       this->userPeriod[i] = usertime - this->userTime[i];
       this->nicePeriod[i] = nicetime - this->niceTime[i];
       this->systemPeriod[i] = systemtime - this->systemTime[i];
+      this->systemAllPeriod[i] = systemalltime - this->systemAllTime[i];
       this->idlePeriod[i] = idletime - this->idleTime[i];
+      this->ioWaitPeriod[i] = ioWait - this->ioWaitTime[i];
+      this->irqPeriod[i] = irq - this->irqTime[i];
+      this->softIrqPeriod[i] = softIrq - this->softIrqTime[i];
+      this->stealPeriod[i] = steal - this->stealTime[i];
       this->totalPeriod[i] = totaltime - this->totalTime[i];
       this->userTime[i] = usertime;
       this->niceTime[i] = nicetime;
       this->systemTime[i] = systemtime;
+      this->systemAllTime[i] = systemalltime;
       this->idleTime[i] = idletime;
+      this->ioWaitTime[i] = ioWait;
+      this->irqTime[i] = irq;
+      this->softIrqTime[i] = softIrq;
+      this->stealTime[i] = steal;
       this->totalTime[i] = totaltime;
    }
    float period = (float)this->totalPeriod[0] / this->processorCount;

ProcessList.h

@@ -74,13 +74,23 @@ typedef struct ProcessList_ {
    unsigned long long int* totalTime;
    unsigned long long int* userTime;
    unsigned long long int* systemTime;
+   unsigned long long int* systemAllTime;
    unsigned long long int* idleTime;
    unsigned long long int* niceTime;
+   unsigned long long int* ioWaitTime;
+   unsigned long long int* irqTime;
+   unsigned long long int* softIrqTime;
+   unsigned long long int* stealTime;
    unsigned long long int* totalPeriod;
    unsigned long long int* userPeriod;
    unsigned long long int* systemPeriod;
+   unsigned long long int* systemAllPeriod;
    unsigned long long int* idlePeriod;
    unsigned long long int* nicePeriod;
+   unsigned long long int* ioWaitPeriod;
+   unsigned long long int* irqPeriod;
+   unsigned long long int* softIrqPeriod;
+   unsigned long long int* stealPeriod;
 
    unsigned long long int totalMem;
    unsigned long long int usedMem;
@@ -102,6 +112,7 @@ typedef struct ProcessList_ {
    bool treeView;
    bool highlightBaseName;
    bool highlightMegabytes;
+   bool expandSystemTime;
    #ifdef DEBUG
    FILE* traceFile;
    #endif

Settings.c

@@ -139,6 +139,8 @@ bool Settings_read(Settings* this, char* fileName) {
          this->pl->highlightMegabytes = atoi(option[1]);
       } else if (String_eq(option[0], "header_margin")) {
          this->header->margin = atoi(option[1]);
+      } else if (String_eq(option[0], "expand_system_time")) {
+         this->pl->expandSystemTime = atoi(option[1]);
       } else if (String_eq(option[0], "delay")) {
          this->delay = atoi(option[1]);
       } else if (String_eq(option[0], "color_scheme")) {
@@ -195,6 +197,7 @@ bool Settings_write(Settings* this) {
    fprintf(fd, "highlight_megabytes=%d\n", (int) this->pl->highlightMegabytes);
    fprintf(fd, "tree_view=%d\n", (int) this->pl->treeView);
    fprintf(fd, "header_margin=%d\n", (int) this->header->margin);
+   fprintf(fd, "expand_system_time=%d\n", (int) this->pl->expandSystemTime);
    fprintf(fd, "color_scheme=%d\n", (int) this->colorScheme);
    fprintf(fd, "delay=%d\n", (int) this->delay);
    fprintf(fd, "left_meters=");

htop.c

@@ -52,7 +52,7 @@ void printHelpFlag() {
    exit(0);
 }
 
-void showHelp() {
+void showHelp(ProcessList* pl) {
    clear();
    attrset(CRT_colors[HELP_BOLD]);
    mvaddstr(0, 0, "htop " VERSION " - (C) 2004-2006 Hisham Muhammad.");
@@ -62,10 +62,20 @@ void showHelp() {
    mvaddstr(3, 0, "CPU usage bar: ");
    #define addattrstr(a,s) attrset(a);addstr(s)
    addattrstr(CRT_colors[BAR_BORDER], "[");
-   addattrstr(CRT_colors[CPU_NICE], "low-priority"); addstr("/");
-   addattrstr(CRT_colors[CPU_NORMAL], "normal"); addstr("/");
-   addattrstr(CRT_colors[CPU_KERNEL], "kernel");
-   addattrstr(CRT_colors[BAR_SHADOW], "      used%");
+   if (pl->expandSystemTime) {
+      addattrstr(CRT_colors[CPU_NICE], "low"); addstr("/");
+      addattrstr(CRT_colors[CPU_NORMAL], "normal"); addstr("/");
+      addattrstr(CRT_colors[CPU_KERNEL], "kernel"); addstr("/");
+      addattrstr(CRT_colors[CPU_IOWAIT], "io-wait"); addstr("/");
+      addattrstr(CRT_colors[CPU_IRQ], "irq"); addstr("/");
+      addattrstr(CRT_colors[CPU_SOFTIRQ], "soft-irq");
+      addattrstr(CRT_colors[BAR_SHADOW], " used%");
+   } else {
+      addattrstr(CRT_colors[CPU_NICE], "low-priority"); addstr("/");
+      addattrstr(CRT_colors[CPU_NORMAL], "normal"); addstr("/");
+      addattrstr(CRT_colors[CPU_KERNEL], "kernel");
+      addattrstr(CRT_colors[BAR_SHADOW], "             used%");
+   }
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
    mvaddstr(4, 0, "Memory bar:    ");
@@ -73,16 +83,16 @@ void showHelp() {
    addattrstr(CRT_colors[MEMORY_USED], "used"); addstr("/");
    addattrstr(CRT_colors[MEMORY_BUFFERS], "buffers"); addstr("/");
    addattrstr(CRT_colors[MEMORY_CACHE], "cache");
-   addattrstr(CRT_colors[BAR_SHADOW], "         used/total");
+   addattrstr(CRT_colors[BAR_SHADOW], "                used/total");
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
    mvaddstr(5, 0, "Swap bar:      ");
    addattrstr(CRT_colors[BAR_BORDER], "[");
    addattrstr(CRT_colors[SWAP], "used");
-   addattrstr(CRT_colors[BAR_SHADOW], "                       used/total");
+   addattrstr(CRT_colors[BAR_SHADOW], "                              used/total");
    addattrstr(CRT_colors[BAR_BORDER], "]");
    attrset(CRT_colors[DEFAULT_COLOR]);
-   mvaddstr(6,0, "Type and layout of header meters is configurable in the setup screen.");
+   mvaddstr(6,0, "Type and layout of header meters are configurable in the setup screen.");
 
    mvaddstr( 8, 0, " Arrows: scroll process list             F5 t: tree view");
    mvaddstr( 9, 0, " Digits: incremental PID search             u: show processes of a single user");
@@ -473,7 +483,7 @@ int main(int argc, char** argv) {
       case KEY_F(1):
       case 'h':
       {
-         showHelp();
+         showHelp(pl);
          FunctionBar_draw(defaultBar, NULL);
          refreshTimeout = 0;
          break;