Add flushing of perfetto buffer (#1417)

- Add flushing of perfetto buffer
- Add `ROCPROFSYS_PERFETTO_FLUSH_PERIOD_MS` config setting.
- Update CHANGELOG.sh
- Resolves SWDEV-518817

---------

Co-authored-by: David Galiffi <David.Galiffi@amd.com>

projects/rocprofiler-systems/source/lib/core/config.cpp

@@ -645,6 +645,10 @@ configure_settings(bool _init)
                               "default to the value of ROCPROFSYS_COLLAPSE_PROCESSES",
                               false, "perfetto", "data", "advanced");
 
+    ROCPROFSYS_CONFIG_SETTING(uint32_t, "ROCPROFSYS_PERFETTO_FLUSH_PERIOD_MS",
+                              "Set Perfetto flush period (in ms)", uint32_t{ 10000 },
+                              "perfetto", "data");
+
     ROCPROFSYS_CONFIG_SETTING(
         std::string, "ROCPROFSYS_PERFETTO_FILL_POLICY",
         "Behavior when perfetto buffer is full. 'discard' will ignore new entries, "
@@ -1997,6 +2001,13 @@ get_perfetto_buffer_size()
     return static_cast<tim::tsettings<size_t>&>(*_v->second).get();
 }
 
+uint32_t
+get_perfetto_flush_period()
+{
+    static auto _v = get_config()->find("ROCPROFSYS_PERFETTO_FLUSH_PERIOD_MS");
+    return static_cast<tim::tsettings<uint32_t>&>(*_v->second).get();
+}
+
 bool
 get_perfetto_combined_traces()
 {

projects/rocprofiler-systems/source/lib/core/config.hpp

@@ -252,6 +252,9 @@ get_perfetto_shmem_size_hint();
 size_t
 get_perfetto_buffer_size();
 
+uint32_t
+get_perfetto_flush_period();
+
 bool
 get_perfetto_combined_traces();
 

projects/rocprofiler-systems/source/lib/core/perfetto.cpp

@@ -78,6 +78,7 @@ setup()
     // environment settings
     auto shmem_size_hint = config::get_perfetto_shmem_size_hint();
     auto buffer_size     = config::get_perfetto_buffer_size();
+    auto flush_period    = config::get_perfetto_flush_period();
 
     auto _policy =
         config::get_perfetto_fill_policy() == "discard"
@@ -94,6 +95,8 @@ setup()
         track_event_cfg.add_disabled_categories(itr);
     }
 
+    cfg.set_flush_period_ms(flush_period);
+
     auto* ds_cfg = cfg.add_data_sources()->mutable_config();
     ds_cfg->set_name("track_event");  // this MUST be track_event
     ds_cfg->set_track_event_config_raw(track_event_cfg.SerializeAsString());