Use strconv.Itoa() instead of fmt.Sprintf() (#1566)

Signed-off-by: Julian Kornberger <jk+github@digineo.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/collector/perf_linux.go b/collector/perf_linux.go
index 0e8a3cc..e8a52b4 100644
--- a/collector/perf_linux.go
+++ b/collector/perf_linux.go
@@ -14,8 +14,8 @@
 package collector
 
 import (
-        "fmt"
         "runtime"
+        "strconv"
 
         "github.com/go-kit/kit/log"
         "github.com/hodgesds/perf-utils"
@@ -334,7 +334,7 @@ func (c *perfCollector) Update(ch chan<- prometheus.Metric) error {
 
 func (c *perfCollector) updateHardwareStats(ch chan<- prometheus.Metric) error {
         for cpu, profiler := range c.perfHwProfilers {
-                cpuStr := fmt.Sprintf("%d", cpu)
+                cpuStr := strconv.Itoa(cpu)
                 hwProfile, err := profiler.Profile()
                 if err != nil {
                         return err
@@ -405,7 +405,7 @@ func (c *perfCollector) updateHardwareStats(ch chan<- prometheus.Metric) error {
 
 func (c *perfCollector) updateSoftwareStats(ch chan<- prometheus.Metric) error {
         for cpu, profiler := range c.perfSwProfilers {
-                cpuStr := fmt.Sprintf("%d", cpu)
+                cpuStr := strconv.Itoa(cpu)
                 swProfile, err := profiler.Profile()
                 if err != nil {
                         return err
@@ -460,7 +460,7 @@ func (c *perfCollector) updateSoftwareStats(ch chan<- prometheus.Metric) error {
 
 func (c *perfCollector) updateCacheStats(ch chan<- prometheus.Metric) error {
         for cpu, profiler := range c.perfCacheProfilers {
-                cpuStr := fmt.Sprintf("%d", cpu)
+                cpuStr := strconv.Itoa(cpu)
                 cacheProfile, err := profiler.Profile()
                 if err != nil {
                         return err