add pidcount,io to mock collector

Makefile

@@ -1,7 +1,8 @@
 NAME=ctop
 VERSION=$(shell cat VERSION)
 BUILD=$(shell git rev-parse --short HEAD)
-LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD) -extldflags=-Wl,--allow-multiple-definition"
+EXT_LD_FLAGS="-Wl,--allow-multiple-definition"
+LD_FLAGS="-w -X main.version=$(VERSION) -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
 
 clean:
 	rm -rf build/ release/
@@ -11,7 +12,7 @@ build:
 	CGO_ENABLED=0 go build -tags release -ldflags $(LD_FLAGS) -o ctop
 
 build-dev:
-	go build -ldflags "-w -X main.version=$(VERSION)-dev -X main.build=$(BUILD)"
+	go build -ldflags "-w -X main.version=$(VERSION)-dev -X main.build=$(BUILD) -extldflags=$(EXT_LD_FLAGS)"
 
 build-all:
 	mkdir -p build

connector/collector/mock.go

@@ -50,6 +50,11 @@ func (c *Mock) run() {
 	rand.Seed(int64(time.Now().Nanosecond()))
 	defer close(c.stream)
 
+	// set to random static value, once
+	c.Pids = rand.Intn(12)
+	c.IOBytesRead = rand.Int63n(8098) * c.aggression
+	c.IOBytesWrite = rand.Int63n(8098) * c.aggression
+
 	for {
 		c.CPUUtil += rand.Intn(2) * int(c.aggression)
 		if c.CPUUtil >= 100 {

main.go

@@ -77,12 +77,6 @@ func main() {
 		config.Toggle("sortReversed")
 	}
 
-	defer Shutdown()
-	// init grid, cursor, header
-	cursor = NewGridCursor(*connectorFlag)
-	cGrid = compact.NewCompactGrid()
-	header = widgets.NewCTopHeader()
-
 	// init ui
 	if *invertFlag {
 		InvertColorMap()
@@ -92,6 +86,12 @@ func main() {
 		panic(err)
 	}
 
+	defer Shutdown()
+	// init grid, cursor, header
+	cursor = NewGridCursor(*connectorFlag)
+	cGrid = compact.NewCompactGrid()
+	header = widgets.NewCTopHeader()
+
 	for {
 		exit := Display()
 		if exit {