Merge branch 'version_2' of https://gitea.shuishan.net.cn/10225101483/XOY-leveldb-exp2 into version_2

benchmarks/db_bench.cc

@@ -65,7 +65,7 @@ static const char* FLAGS_benchmarks =
     "zstduncomp,";
 
 // Number of key/values to place in database
-static int FLAGS_num = 100000;
+static int FLAGS_num = 1000000;
 
 // Number of read operations to do.  If negative, do FLAGS_num reads.
 static int FLAGS_reads = -1;
@@ -1127,8 +1127,8 @@ int main(int argc, char** argv) {
 
   // Choose a location for the test database if none given with --db=<path>
   if (FLAGS_db == nullptr) {
-    leveldb::g_env->GetTestDirectory(&default_db_path);
-    default_db_path += "/dbbench";
+    //leveldb::g_env->GetTestDirectory(&default_db_path);
+    default_db_path = "dbbench";
     FLAGS_db = default_db_path.c_str();
   }