Reduce max size for sequential map search to 10

Author: gabime

src/details/registry.cpp

@@ -70,7 +70,7 @@ namespace spdlog {
 
         // if the map is small do a sequential search, otherwise use the standard find()
         std::shared_ptr<logger> registry::get(const std::string &logger_name) {
-            if (loggers_.size() <= 20) {
+            if (loggers_.size() <= 10) {
                 for (const auto &[key, val]: loggers_) {
                     if (logger_name == key) {
                         return val;
@@ -89,7 +89,7 @@ namespace spdlog {
         std::shared_ptr<logger> registry::get(std::string_view logger_name) {
             std::lock_guard<std::mutex> lock(logger_map_mutex_);
 
-            if (loggers_.size() <= 20) {
+            if (loggers_.size() <= 10) {
                 for (const auto &[key, val]: loggers_) {
                     if (logger_name == key) {
                         return val;