change default message size threshold fro SHM

ros2 · Feb 4, 2025 · 30a00fa · 30a00fa
1 parent 6165770
commit 30a00fa
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/rmw_zenoh_cpp/src/detail/zenoh_config.cpp b/rmw_zenoh_cpp/src/detail/zenoh_config.cpp
@@ -48,7 +48,7 @@ static const bool zenoh_shm_enabled_default = true;
 static const char * zenoh_shm_alloc_size_envar = "ZENOH_SHM_ALLOC_SIZE";
 static const size_t zenoh_shm_alloc_size_default = 16 * 1024 * 1024;
 static const char * zenoh_shm_message_size_threshold_envar = "ZENOH_SHM_MESSAGE_SIZE_THRESHOLD";
-static const size_t zenoh_shm_message_size_threshold_default = 2 * 1024;
+static const size_t zenoh_shm_message_size_threshold_default = 512;
 
 std::optional<zenoh::Config> _get_z_config(
   const char * envar_name,

diff --git a/rmw_zenoh_cpp/src/detail/zenoh_config.hpp b/rmw_zenoh_cpp/src/detail/zenoh_config.hpp
@@ -85,7 +85,7 @@ size_t zenoh_shm_alloc_size();
 /// variable ZENOH_SHM_MESSAGE_SIZE_THRESHOLD.
 /// Messages smaller than this threshold will not be forwarded through Zenoh SHM
 /// @details The behavior is as follows:
-///   - If not set or <= 0, the default value of 2KB is returned.
+///   - If not set or <= 0, the default value of 512B is returned.
 ///   - Else value of environemnt variable is returned.
 /// @return The amount of shared memory to be pre-allocated for Zenoh SHM operation
 size_t zenoh_shm_message_size_threshold();