diff --git a/Makefile b/Makefile
index f6879cf20d1..7b574f56fb6 100644
--- a/Makefile
+++ b/Makefile
@@ -242,7 +242,7 @@ test-tso-consistency: install-tools
 TASK_COUNT=1
 TASK_ID=1
 
-# The command should be used in daily CI，it will split some tasks to run parallel.
+# The command should be used in daily CI,it will split some tasks to run parallel.
 # It should retain report.xml,coverage,coverage.xml and package.list to analyze.
 test-with-cover-parallel: install-tools dashboard-ui split
 	@$(FAILPOINT_ENABLE)
diff --git a/client/resource_group/controller/limiter.go b/client/resource_group/controller/limiter.go
index 078894dbdec..a8038c6d8e5 100644
--- a/client/resource_group/controller/limiter.go
+++ b/client/resource_group/controller/limiter.go
@@ -185,7 +185,7 @@ func (r *Reservation) CancelAt(now time.Time) {
 
 // Reserve returns a Reservation that indicates how long the caller must wait before n events happen.
 // The Limiter takes this Reservation into account when allowing future events.
-// The returned Reservation’s OK() method returns false if wait duration exceeds deadline.
+// The returned Reservation's OK() method returns false if wait duration exceeds deadline.
 // Usage example:
 //
 //	r := lim.Reserve(time.Now(), 1)
diff --git a/pkg/cgroup/cgroup.go b/pkg/cgroup/cgroup.go
index 1406cffed0a..2a99d2fcd3d 100644
--- a/pkg/cgroup/cgroup.go
+++ b/pkg/cgroup/cgroup.go
@@ -234,10 +234,10 @@ func getCgroupDetails(mountInfoPath string, cRoot string, controller string) (mo
 			// It is possible that the controller mount and the cgroup path are not the same (both are relative to the NS root).
 			// So start with the mount and construct the relative path of the cgroup.
 			// To test:
-			//  1、start a docker to run unit test or tidb-server
+			//  1. start a docker to run unit test or tidb-server
 			//   > docker run -it --cpus=8 --memory=8g --name test --rm ubuntu:18.04 bash
 			//
-			//  2、change the limit when the container is running
+			//  2. change the limit when the container is running
 			//	docker update --cpus=8 <containers>
 			nsRelativePath := string(fields[3])
 			if !strings.Contains(nsRelativePath, "..") {
diff --git a/pkg/core/rangetree/range_tree_test.go b/pkg/core/rangetree/range_tree_test.go
index 6bbd6860989..29845cf0bca 100644
--- a/pkg/core/rangetree/range_tree_test.go
+++ b/pkg/core/rangetree/range_tree_test.go
@@ -100,7 +100,7 @@ func TestRingPutItem(t *testing.T) {
 	re.Len(bucketTree.GetOverlaps(newSimpleBucketItem([]byte("010"), []byte("110"))), 2)
 	re.Empty(bucketTree.GetOverlaps(newSimpleBucketItem([]byte("200"), []byte("300"))))
 
-	// test1： insert one key range, the old overlaps will retain like split buckets.
+	// test1: insert one key range, the old overlaps will retain like split buckets.
 	// key range: [002,010],[010,090],[090,100],[100,200]
 	bucketTree.Update(newSimpleBucketItem([]byte("010"), []byte("090")))
 	re.Equal(4, bucketTree.Len())
diff --git a/pkg/core/store_test.go b/pkg/core/store_test.go
index f6f2518c241..be0fd0f9418 100644
--- a/pkg/core/store_test.go
+++ b/pkg/core/store_test.go
@@ -174,7 +174,7 @@ func TestLowSpaceScoreV2(t *testing.T) {
 		bigger: newStoreInfoWithAvailable(1, 10*units.GiB, 100*units.GiB, 1.5),
 		small:  newStoreInfoWithAvailable(2, 10*units.GiB, 100*units.GiB, 1.4),
 	}, {
-		// store1 and store2 has same capacity and regionSize（40g)
+		// store1 and store2 has same capacity and regionSize (40g)
 		// but store1 has less available space size
 		bigger: newStoreInfoWithAvailable(1, 60*units.GiB, 100*units.GiB, 1),
 		small:  newStoreInfoWithAvailable(2, 80*units.GiB, 100*units.GiB, 2),
diff --git a/pkg/schedule/labeler/rules.go b/pkg/schedule/labeler/rules.go
index c902fff8f66..3b50779d659 100644
--- a/pkg/schedule/labeler/rules.go
+++ b/pkg/schedule/labeler/rules.go
@@ -171,7 +171,7 @@ func (rule *LabelRule) expireBefore(t time.Time) bool {
 	return rule.minExpire.Before(t)
 }
 
-// initKeyRangeRulesFromLabelRuleData init and adjust []KeyRangeRule from `LabelRule.Data“
+// initKeyRangeRulesFromLabelRuleData init and adjust []KeyRangeRule from `LabelRule.Data`
 func initKeyRangeRulesFromLabelRuleData(data interface{}) ([]*KeyRangeRule, error) {
 	rules, ok := data.([]interface{})
 	if !ok {
diff --git a/pkg/schedule/operator/operator.go b/pkg/schedule/operator/operator.go
index f8df4a428dd..d841c785b59 100644
--- a/pkg/schedule/operator/operator.go
+++ b/pkg/schedule/operator/operator.go
@@ -129,7 +129,7 @@ func (o *Operator) String() string {
 	for i := range o.steps {
 		stepStrs[i] = o.steps[i].String()
 	}
-	s := fmt.Sprintf("%s {%s} (kind:%s, region:%v(%v, %v), createAt:%s, startAt:%s, currentStep:%v, size:%d, steps:[%s]，timeout:[%s])",
+	s := fmt.Sprintf("%s {%s} (kind:%s, region:%v(%v, %v), createAt:%s, startAt:%s, currentStep:%v, size:%d, steps:[%s], timeout:[%s])",
 		o.desc, o.brief, o.kind, o.regionID, o.regionEpoch.GetVersion(), o.regionEpoch.GetConfVer(), o.GetCreateTime(),
 		o.GetStartTime(), atomic.LoadInt32(&o.currentStep), o.ApproximateSize, strings.Join(stepStrs, ", "), o.timeout.String())
 	if o.CheckSuccess() {
diff --git a/pkg/statistics/buckets/hot_bucket_task_test.go b/pkg/statistics/buckets/hot_bucket_task_test.go
index f2f28ef3d02..c825cfe5b86 100644
--- a/pkg/statistics/buckets/hot_bucket_task_test.go
+++ b/pkg/statistics/buckets/hot_bucket_task_test.go
@@ -68,7 +68,7 @@ func TestCheckBucketsTask(t *testing.T) {
 	ctx, cancelFn := context.WithCancel(context.Background())
 	defer cancelFn()
 	hotCache := NewBucketsCache(ctx)
-	// case1： add bucket successfully
+	// case1: add bucket successfully
 	buckets := newTestBuckets(1, 1, [][]byte{[]byte("10"), []byte("20"), []byte("30")}, 0)
 	task := NewCheckPeerTask(buckets)
 	re.True(hotCache.CheckAsync(task))
@@ -93,7 +93,7 @@ func TestCheckBucketsTask(t *testing.T) {
 	re.Len(item, 1)
 	re.Equal(-2, item[0].HotDegree)
 
-	// case3：add bucket successful and the hot degree should inherit from the old one.
+	// case3:add bucket successful and the hot degree should inherit from the old one.
 	buckets = newTestBuckets(1, 1, [][]byte{[]byte("10"), []byte("20")}, 0)
 	task = NewCheckPeerTask(buckets)
 	re.True(hotCache.CheckAsync(task))
@@ -109,7 +109,7 @@ func TestCollectBucketStatsTask(t *testing.T) {
 	ctx, cancelFn := context.WithCancel(context.Background())
 	defer cancelFn()
 	hotCache := NewBucketsCache(ctx)
-	// case1： add bucket successfully
+	// case1: add bucket successfully
 	for i := uint64(0); i < 10; i++ {
 		buckets := convertToBucketTreeItem(newTestBuckets(i, 1, [][]byte{[]byte(strconv.FormatUint(i*10, 10)),
 			[]byte(strconv.FormatUint((i+1)*10, 10))}, 0))
diff --git a/server/config/store_config_test.go b/server/config/store_config_test.go
index 6342926b636..01eeae5e8e3 100644
--- a/server/config/store_config_test.go
+++ b/server/config/store_config_test.go
@@ -133,21 +133,21 @@ func TestMergeCheck(t *testing.T) {
 		mergeKeys: 200000,
 		pass:      true,
 	}, {
-		// case 2: the smallest region is 68MiB，it can't be merged again.
+		// case 2: the smallest region is 68MiB,it can't be merged again.
 		size:      144 + 20,
 		mergeSize: 20,
 		keys:      1440000 + 200000,
 		mergeKeys: 200000,
 		pass:      true,
 	}, {
-		// case 3: the smallest region is 50MiB，it can be merged again.
+		// case 3: the smallest region is 50MiB,it can be merged again.
 		size:      144 + 2,
 		mergeSize: 50,
 		keys:      1440000 + 20000,
 		mergeKeys: 500000,
 		pass:      false,
 	}, {
-		// case4: the smallest region is 51MiB，it can't be merged again.
+		// case4: the smallest region is 51MiB,it can't be merged again.
 		size:      144 + 3,
 		mergeSize: 50,
 		keys:      1440000 + 30000,