Add 'MemUsageBytes' format option

Although storage is more human-readable when expressed in SI units,
IEC/JEDEC (Bytes) units are more pertinent for memory-related values
(and match the format of the --memory* command-line options).

(To prevent possible compatibility issues, the default SI display is
left unchanged)

See https://github.com/containers/podman/issues/8945

Signed-off-by: Stuart Shelton <stuart@shelton.me>

2 files changed, 26 insertions, 12 deletions

diff --git a/cmd/podman/containers/stats.go b/cmd/podman/containers/stats.go
index ca5c0fdb8..1a436aaef 100644
--- a/cmd/podman/containers/stats.go
+++ b/cmd/podman/containers/stats.go
@@ -147,13 +147,14 @@ func stats(cmd *cobra.Command, args []string) error {
 
 func outputStats(reports []define.ContainerStats) error {
 	headers := report.Headers(define.ContainerStats{}, map[string]string{
-		"ID":       "ID",
-		"CPUPerc":  "CPU %",
-		"MemUsage": "MEM USAGE / LIMIT",
-		"MemPerc":  "MEM %",
-		"NetIO":    "NET IO",
-		"BlockIO":  "BLOCK IO",
-		"PIDS":     "PIDS",
+		"ID":            "ID",
+		"CPUPerc":       "CPU %",
+		"MemUsage":      "MEM USAGE / LIMIT",
+		"MemUsageBytes": "MEM USAGE / LIMIT",
+		"MemPerc":       "MEM %",
+		"NetIO":         "NET IO",
+		"BlockIO":       "BLOCK IO",
+		"PIDS":          "PIDS",
 	})
 	if !statsOptions.NoReset {
 		tm.Clear()
@@ -222,10 +223,15 @@ func (s *containerStats) PIDS() string {
 	}
 	return fmt.Sprintf("%d", s.PIDs)
 }
+
 func (s *containerStats) MemUsage() string {
 	return combineHumanValues(s.ContainerStats.MemUsage, s.ContainerStats.MemLimit)
 }
 
+func (s *containerStats) MemUsageBytes() string {
+	return combineBytesValues(s.ContainerStats.MemUsage, s.ContainerStats.MemLimit)
+}
+
 func floatToPercentString(f float64) string {
 	strippedFloat, err := utils.RemoveScientificNotationFromFloat(f)
 	if err != nil || strippedFloat == 0 {
@@ -242,6 +248,13 @@ func combineHumanValues(a, b uint64) string {
 	return fmt.Sprintf("%s / %s", units.HumanSize(float64(a)), units.HumanSize(float64(b)))
 }
 
+func combineBytesValues(a, b uint64) string {
+	if a == 0 && b == 0 {
+		return "-- / --"
+	}
+	return fmt.Sprintf("%s / %s", units.BytesSize(float64(a)), units.BytesSize(float64(b)))
+}
+
 func outputJSON(stats []containerStats) error {
 	type jstat struct {
 		Id         string `json:"id"` // nolint
diff --git a/cmd/podman/pods/stats.go b/cmd/podman/pods/stats.go
index 79e7cd8ed..5f79fa016 100644
--- a/cmd/podman/pods/stats.go
+++ b/cmd/podman/pods/stats.go
@@ -75,11 +75,12 @@ func stats(cmd *cobra.Command, args []string) error {
 	doJSON := report.IsJSON(row)
 
 	headers := report.Headers(entities.PodStatsReport{}, map[string]string{
-		"CPU":      "CPU %",
-		"MemUsage": "MEM USAGE/ LIMIT",
-		"MEM":      "MEM %",
-		"NET IO":   "NET IO",
-		"BlockIO":  "BLOCK IO",
+		"CPU":           "CPU %",
+		"MemUsage":      "MEM USAGE/ LIMIT",
+		"MemUsageBytes": "MEM USAGE/ LIMIT",
+		"MEM":           "MEM %",
+		"NET IO":        "NET IO",
+		"BlockIO":       "BLOCK IO",
 	})
 
 	for ; ; time.Sleep(time.Second) {