diff --git a/.github/workflows/linux_llvm_cov.yml b/.github/workflows/linux_llvm_cov.yml
index 54135d57..0b74cba8 100644
--- a/.github/workflows/linux_llvm_cov.yml
+++ b/.github/workflows/linux_llvm_cov.yml
@@ -43,7 +43,7 @@ jobs:
           ./test_metric
           
           llvm-profdata merge -sparse test_cinatra-*.profraw -o test_cinatra.profdata
-          llvm-cov show test_cinatra -object test_corofile -object test_time_util -object test_http_parse -object test_metric -instr-profile=test_cinatra.profdata -format=html -output-dir=../.coverage_llvm_cov -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-instantiations=false
+          llvm-cov show -object test_cinatra -object test_corofile -object test_time_util -object test_http_parse -object test_metric -instr-profile=test_cinatra.profdata -format=html -output-dir=../.coverage_llvm_cov -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-instantiations=false
           echo "Done!"
 
       - name: Upload Coverage Results
@@ -58,7 +58,7 @@ jobs:
           echo "Code Coverage Report" > tmp.log
           echo "for detail, [goto summary](https://github.com/${{ github.repository_owner }}/${{ github.event.repository.name }}/actions/runs/${{github.run_id}}) download Artifacts `llvm-cov`" >> tmp.log
           echo "\`\`\`" >> tmp.log
-          llvm-cov report test_cinatra -object test_corofile -object test_time_util -object test_http_parse -instr-profile=test_cinatra.profdata -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-region-summary=false >> tmp.log
+          llvm-cov report -object test_cinatra -object test_corofile -object test_time_util -object test_http_parse -instr-profile=test_cinatra.profdata -ignore-filename-regex="example|asio|cmdline|async_simple|tests" -show-region-summary=false >> tmp.log
           echo "\`\`\`" >> tmp.log
 
       - name: Create Comment
diff --git a/include/cinatra/ylt/coro_io/coro_io.hpp b/include/cinatra/ylt/coro_io/coro_io.hpp
index f22b9144..3992116c 100644
--- a/include/cinatra/ylt/coro_io/coro_io.hpp
+++ b/include/cinatra/ylt/coro_io/coro_io.hpp
@@ -364,12 +364,11 @@ post(Func func,
 }
 
 template <typename R>
-struct coro_channel
-    : public asio::experimental::channel<void(std::error_code, R)> {
+struct channel : public asio::experimental::channel<void(std::error_code, R)> {
   using return_type = R;
   using ValueType = std::pair<std::error_code, R>;
   using asio::experimental::channel<void(std::error_code, R)>::channel;
-  coro_channel(coro_io::ExecutorWrapper<> *executor, size_t capacity)
+  channel(coro_io::ExecutorWrapper<> *executor, size_t capacity)
       : executor_(executor),
         asio::experimental::channel<void(std::error_code, R)>(
             executor->get_asio_executor(), capacity) {}
@@ -380,17 +379,17 @@ struct coro_channel
 };
 
 template <typename R>
-inline coro_channel<R> create_channel(
+inline channel<R> create_channel(
     size_t capacity,
     coro_io::ExecutorWrapper<> *executor = coro_io::get_global_executor()) {
-  return coro_channel<R>(executor, capacity);
+  return channel<R>(executor, capacity);
 }
 
 template <typename R>
 inline auto create_shared_channel(
     size_t capacity,
     coro_io::ExecutorWrapper<> *executor = coro_io::get_global_executor()) {
-  return std::make_shared<coro_channel<R>>(executor, capacity);
+  return std::make_shared<channel<R>>(executor, capacity);
 }
 
 template <typename T>
diff --git a/include/cinatra/ylt/metric/dynamic_metric.hpp b/include/cinatra/ylt/metric/dynamic_metric.hpp
index 02533bbe..df024e54 100644
--- a/include/cinatra/ylt/metric/dynamic_metric.hpp
+++ b/include/cinatra/ylt/metric/dynamic_metric.hpp
@@ -2,6 +2,7 @@
 #include <thread>
 
 #include "metric.hpp"
+#include "thread_local_value.hpp"
 #if __has_include("ylt/util/type_traits.h")
 #include "ylt/util/map_sharded.hpp"
 #else
@@ -12,6 +13,8 @@ namespace ylt::metric {
 
 class dynamic_metric : public metric_t {
  public:
+  static inline auto g_user_metric_label_count =
+      new thread_local_value<int64_t>(std::thread::hardware_concurrency());
   using metric_t::metric_t;
 };
 
diff --git a/include/cinatra/ylt/metric/metric.hpp b/include/cinatra/ylt/metric/metric.hpp
index cd395268..fddd50f3 100644
--- a/include/cinatra/ylt/metric/metric.hpp
+++ b/include/cinatra/ylt/metric/metric.hpp
@@ -53,8 +53,6 @@ struct metric_filter_options {
 class metric_t {
  public:
   static inline std::atomic<int64_t> g_user_metric_count = 0;
-  static inline auto g_user_metric_label_count =
-      new thread_local_value<int64_t>(std::thread::hardware_concurrency());
   metric_t() = default;
   metric_t(MetricType type, std::string name, std::string help)
       : type_(type),
diff --git a/include/cinatra/ylt/metric/system_metric.hpp b/include/cinatra/ylt/metric/system_metric.hpp
index 50c36f31..7d286caf 100644
--- a/include/cinatra/ylt/metric/system_metric.hpp
+++ b/include/cinatra/ylt/metric/system_metric.hpp
@@ -601,7 +601,7 @@ inline void stat_metric() {
       system_metric_manager::instance().get_metric_static<gauge_t>(
           "ylt_user_metric_labels");
   user_metric_label_count->update(
-      metric::metric_t::g_user_metric_label_count->value());
+      dynamic_metric::g_user_metric_label_count->value());
 }
 
 inline void ylt_stat() {