Resolve high cpu usage even on idle system (#1189)

* Resolve high cpu usage even on idel system

CHANGELOG.md

@@ -13,6 +13,7 @@
 - [#1161](https://github.com/Azure/azure-storage-fuse/issues/1161) Add more verbose logs for pipeline init failures
 - Return permission denied error for `AuthorizationPermissionMismatch` error from service.
 - [#1187](https://github.com/Azure/azure-storage-fuse/issues/1187) File-cache path will be created recursively, if it does not exist.
+- Resolved bug related to constant 5% CPU usage even where there is no activity on the blobfuse2 mounted path.
 
 ## 2.0.3 (2023-04-26)
 **Bug Fixes**

component/azstorage/block_blob.go

@@ -48,6 +48,7 @@ import (
 	"time"
 
 	"github.com/Azure/azure-pipeline-go/pipeline"
+	azcopyCommon "github.com/Azure/azure-storage-azcopy/v10/common"
 	"github.com/Azure/azure-storage-azcopy/v10/ste"
 	"github.com/Azure/azure-storage-fuse/v2/common"
 	"github.com/Azure/azure-storage-fuse/v2/common/log"
@@ -173,6 +174,10 @@ func (bb *BlockBlob) SetupPipeline() error {
 	log.Trace("BlockBlob::SetupPipeline : Setting up")
 	var err error
 
+	// This is a workaround right now to disable the input watcher thread which continuously monitors below config to change
+	// Running this thread continuously increases the CPU usage by 5% even when there is no activity on blobfuse2 mount path
+	azcopyCommon.GetLifecycleMgr().EnableInputWatcher()
+
 	// Get the credential
 	cred := bb.getCredential()
 	if cred == nil {