diff --git a/Description.md b/Description.md
index 6869f53..cc8957f 100644
--- a/Description.md
+++ b/Description.md
@@ -4,5 +4,6 @@
 - DoCompactionWork_sst: Compaction of SSTable
 - dbname_(dbname): NVM path
 - dbname_ssd_(raw_options.nvm_option.sst_path): SSD path
-
-There are 4 pmtables in each nvm level.
\ No newline at end of file
+- leveldb::nvram::create_pool: create_pool nvm pool
+  
+There are 4 pmtables in each nvm level.
diff --git a/benchmarks/db_bench.cc b/benchmarks/db_bench.cc
index 154cba2..d2e3f4f 100644
--- a/benchmarks/db_bench.cc
+++ b/benchmarks/db_bench.cc
@@ -1269,7 +1269,7 @@ int main(int argc, char** argv) {
   benchmark.Run();
   // leveldb::BtreeIndex bi;
 
-  std::cout<<"done~~\n"<<std::endl;
+  // std::cout<<"done~~\n"<<std::endl;
   leveldb::nvram::close_pool();
   return 0;
 }