Added cli options for cpu load

main.go

@@ -60,6 +60,8 @@ Options:
   -m, --minimal         Only show CPU, Mem and Process widgets.
   -r, --rate=RATE       Number of times per second to update CPU and Mem widgets [default: 1].
   -v, --version         Show version.
+  -p, --percpu          Show each CPU in the CPU widget.
+  -a, --averagecpu      Show average CPU in the CPU widget.
 
 Colorschemes:
   default
@@ -86,6 +88,9 @@ Colorschemes:
 	} else {
 		interval = time.Second / time.Duration(rate)
 	}
+
+	averageLoad, _ = args["--averagecpu"].(bool)
+	percpuLoad, _ = args["--percpu"].(bool)
 }
 
 func handleColorscheme(cs string) {

src/widgets/cpu.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/cjbassi/gotop/src/utils"
 	ui "github.com/cjbassi/termui"
 	psCPU "github.com/shirou/gopsutil/cpu"
 )
@@ -49,7 +50,8 @@ func NewCPU(interval time.Duration, zoom int, average bool, percpu bool) *CPU {
 
 	ticker := time.NewTicker(self.interval)
 	go func() {
-		self.update()
+		// update asynchronously because of 1 second blocking period
+		go self.update()
 		for range ticker.C {
 			self.update()
 		}
@@ -68,6 +70,17 @@ func (self *CPU) update() {
 
 	if self.PerCPU {
 		percents, _ := psCPU.Percent(self.interval, true)
+		if len(percents) != self.Count {
+			count, _ := psCPU.Counts(false)
+			utils.Error("CPU percentages",
+				fmt.Sprint(
+					"self.Count: ", self.Count, "\n",
+					"gopsutil.Counts(): ", count, "\n",
+					"len(percents): ", len(percents), "\n",
+					"percents: ", percents, "\n",
+					"self.interval: ", self.interval,
+				))
+		}
 		for i := 0; i < self.Count; i++ {
 			k := fmt.Sprintf("CPU%d", i)
 			self.Data[k] = append(self.Data[k], percents[i])