diff --git a/resources/hdlParser/index.js b/resources/hdlParser/index.js
index cf211d5..2de23de 100644
--- a/resources/hdlParser/index.js
+++ b/resources/hdlParser/index.js
@@ -18,14 +18,30 @@ const _hdlParser = {
     }
 };
 
+const debug = {
+    acquire: 0,
+    io: 0,
+    compute: 0
+};
 
 async function callParser(path, func) {
+    const s1 = Date.now();
     const wasmModule = await _hdlParser.acquire();
+    debug.acquire += Date.now() - s1;
+
     const file = _hdlParser.tempPath;
     const fileLength = file.length;
+
+    const s2 = Date.now();
     const source = fs.readFileSync(path, 'utf-8') + '\n';
     wasmModule.FS.writeFile(_hdlParser.tempPath, source, { encoding: 'utf8' });
+    debug.io += Date.now() - s2;
+    
+    const s3 = Date.now();
     const res = wasmModule.ccall('call_parser', 'string', ['string', 'int', 'int'], [file, fileLength, func]);
+    debug.compute += Date.now() - s3;
+
+    console.log(debug);
     return JSON.parse(res);
 }
 
diff --git a/src/hdlParser/core.ts b/src/hdlParser/core.ts
index 9d9014d..33aa625 100644
--- a/src/hdlParser/core.ts
+++ b/src/hdlParser/core.ts
@@ -224,7 +224,7 @@ class HdlParam {
 
     private async doHdlFast(path: AbsPath) {
         try {
-            const fast = await HdlSymbol.fast(path);            
+            const fast = await HdlSymbol.fast(path);                   
             if (fast) {
                 const languageId = this.alignLanguageId(fast.languageId);
                 new HdlFile(path,
@@ -239,13 +239,8 @@ class HdlParam {
     }
 
     public async initHdlFiles(hdlFiles: AbsPath[] | Generator<AbsPath>) {
-        const pools: Promise<void>[] = [];
         for (const path of hdlFiles) {        
-            const p = this.doHdlFast(path);
-            pools.push(p);
-        }
-        for (const p of pools) {
-            await p;
+            await this.doHdlFast(path);
         }
     }
 
@@ -254,7 +249,7 @@ class HdlParam {
         
         for (const hdlFile of this.getAllHdlFiles()) {
             hdlFile.makeInstance();
-        }
+        }        
     }
 
     public getTopModulesByType(type: string): HdlModule[] {