feat: add lua disable config

agent/src/config/config.rs

@@ -1214,6 +1214,7 @@ pub struct EbpfProfileLanguages {
     pub python_disabled: bool,
     pub php_disabled: bool,
     pub nodejs_disabled: bool,
+    pub lua_disabled: bool,
 }
 
 impl Default for EbpfProfileLanguages {
@@ -1222,6 +1223,7 @@ impl Default for EbpfProfileLanguages {
             python_disabled: false,
             php_disabled: false,
             nodejs_disabled: false,
+            lua_disabled: false,
         }
     }
 }

agent/src/ebpf/mod.rs

@@ -132,6 +132,8 @@ pub const FEATURE_PROFILE_PYTHON: c_int = 9;
 pub const FEATURE_PROFILE_PHP: c_int = 10;
 #[allow(dead_code)]
 pub const FEATURE_PROFILE_V8: c_int = 11;
+#[allow(dead_code)]
+pub const FEATURE_PROFILE_LUA: c_int = 12;
 
 //追踪器当前状态
 #[allow(dead_code)]

agent/src/ebpf/user/config.h

@@ -89,7 +89,7 @@
 #define PROG_ONCPU_OUTPUT_FOR_PE        "df_PE_oncpu_output"
 
 // lua related maps
-#define MAP_LUA_LANG_FLAGS_NAME         "__lang_flags_map"
+#define MAP_LUA_LANG_FLAGS_NAME         "__lua_lang_flags_map"
 #define MAP_LUA_UNWIND_INFO_NAME        "__lua_unwind_info_map"
 #define MAP_LUA_OFFSETS_NAME            "__lua_offsets_map"
 #define MAP_LUAJIT_OFFSETS_NAME         "__luajit_offsets_map"
@@ -181,6 +181,7 @@ enum cfg_feature_idx {
 	FEATURE_PROFILE_PYTHON,
 	FEATURE_PROFILE_PHP,
 	FEATURE_PROFILE_V8,
+	FEATURE_PROFILE_LUA,
 	FEATURE_CPU_BALANCER,
 	FEATURE_MAX,
 };
@@ -196,6 +197,7 @@ enum cfg_feature_idx {
 #define FEATURE_FLAG_PROFILE_PYTHON		(1 << FEATURE_PROFILE_PYTHON)
 #define FEATURE_FLAG_PROFILE_PHP		(1 << FEATURE_PROFILE_PHP)
 #define FEATURE_FLAG_PROFILE_V8			(1 << FEATURE_PROFILE_V8)
+#define FEATURE_FLAG_PROFILE_LUA		(1 << FEATURE_PROFILE_LUA)
 #define FEATURE_FLAG_CPU_BALANCER		(1 << FEATURE_CPU_BALANCER)
 
 #define FEATURE_FLAG_PROFILE				(FEATURE_FLAG_PROFILE_ONCPU | FEATURE_FLAG_PROFILE_OFFCPU | FEATURE_FLAG_PROFILE_MEMORY)

agent/src/ebpf/user/load.c

@@ -1338,6 +1338,9 @@ int ebpf_obj_load(struct ebpf_object *obj)
 		if (!python_profiler_enabled()) {
 			enabled_feats &= ~FEATURE_FLAG_PROFILE_PYTHON;
 		}
+		if (!lua_profiler_enabled()) {
+			enabled_feats &= ~FEATURE_FLAG_PROFILE_LUA;
+		}
 		enabled_feats &= ~extended_feature_flags(map);
 		if (enabled_feats == 0 &&
 		    map->def.type != BPF_MAP_TYPE_PROG_ARRAY &&
@@ -1359,7 +1362,8 @@ int ebpf_obj_load(struct ebpf_object *obj)
 		}
 		// Log language profiler map creation with max_entries for verification
 		if (strstr(map->name, "php_") || strstr(map->name, "v8_") ||
-		    strstr(map->name, "python_")) {
+		    strstr(map->name, "python_") || strstr(map->name, "lua_") ||
+		    strstr(map->name, "luajit_")) {
 			ebpf_info
 			    ("Language profiler map created: name=%s, max_entries=%d (1 means disabled)\n",
 			     map->name, map->def.max_entries);

agent/src/ebpf/user/tracer.c

@@ -2055,6 +2055,11 @@ bool python_profiler_enabled(void)
 	return is_feature_regex_set(FEATURE_PROFILE_PYTHON);
 }
 
+bool lua_profiler_enabled(void)
+{
+	return is_feature_regex_set(FEATURE_PROFILE_LUA);
+}
+
 static void init_thread_ids(void)
 {
 	thread_ids.entries = NULL;

agent/src/ebpf/user/tracer.h

@@ -629,6 +629,7 @@ bool is_feature_regex_set(int feature);
 bool php_profiler_enabled(void);
 bool v8_profiler_enabled(void);
 bool python_profiler_enabled(void);
+bool lua_profiler_enabled(void);
 int bpf_tracer_init(const char *log_file, bool is_stdout);
 int set_kick_kern_nice(int32_t nice);
 int tracer_bpf_load(struct bpf_tracer *tracer);

agent/src/ebpf_dispatcher.rs

@@ -1143,6 +1143,12 @@ impl EbpfCollector {
                     CString::new(".*").unwrap().as_c_str().as_ptr(),
                 );
             }
+            if !languages.lua_disabled {
+                ebpf::set_feature_regex(
+                    ebpf::FEATURE_PROFILE_LUA,
+                    CString::new(".*").unwrap().as_c_str().as_ptr(),
+                );
+            }
 
             #[cfg(feature = "extended_observability")]
             {

server/agent_config/README-CH.md

@@ -5172,6 +5172,35 @@ inputs:
 禁用 Node.js（V8）解释器剖析。禁用后将不采集 Node.js 进程的函数调用栈，
 可节省约 6.4 MB 内核内存（v8_unwind_info_map）。
 
+##### 禁用 Lua 剖析 {#inputs.ebpf.profile.languages.lua_disabled}
+
+**标签**:
+
+<mark>agent_restart</mark>
+
+**FQCN**:
+
+`inputs.ebpf.profile.languages.lua_disabled`
+
+**默认值**:
+```yaml
+inputs:
+  ebpf:
+    profile:
+      languages:
+        lua_disabled: false
+```
+
+**模式**:
+| Key  | Value                        |
+| ---- | ---------------------------- |
+| Type | bool |
+
+**详细描述**:
+
+禁用 Lua 解释器剖析。禁用后将不采集 Lua 进程的函数调用栈，
+可节省约 13 MB 内核内存（lua_tstate_map、lua_lang_flags_map、lua_unwind_info_map、lua_offsets_map、luajit_offsets_map）。
+
 ### 网络 {#inputs.ebpf.network}
 
 #### NIC optimization Enabled {#inputs.ebpf.network.nic_opt_enabled}

server/agent_config/README.md

@@ -5312,6 +5312,35 @@ inputs:
 Disable Node.js (V8) interpreter profiling. When disabled, Node.js process stack traces will not be collected,
 saving approximately 6.4 MB of kernel memory (v8_unwind_info_map).
 
+##### Lua profiling disabled {#inputs.ebpf.profile.languages.lua_disabled}
+
+**Tags**:
+
+<mark>agent_restart</mark>
+
+**FQCN**:
+
+`inputs.ebpf.profile.languages.lua_disabled`
+
+**Default value**:
+```yaml
+inputs:
+  ebpf:
+    profile:
+      languages:
+        lua_disabled: false
+```
+
+**Schema**:
+| Key  | Value                        |
+| ---- | ---------------------------- |
+| Type | bool |
+
+**Description**:
+
+Disable Lua interpreter profiling. When disabled, Lua process stack traces will not be collected,
+saving approximately 13 MB of kernel memory (lua_tstate_map, lua_lang_flags_map, lua_unwind_info_map, lua_offsets_map, luajit_offsets_map).
+
 ### Network {#inputs.ebpf.network}
 
 #### NIC optimization Enabled {#inputs.ebpf.network.nic_opt_enabled}

server/agent_config/template.yaml

@@ -3874,6 +3874,32 @@ inputs:
         #     禁用 Node.js（V8）解释器剖析。禁用后将不采集 Node.js 进程的函数调用栈，
         #     可节省约 6.4 MB 内核内存（v8_unwind_info_map）。
         nodejs_disabled: false
+        # type: bool
+        # name:
+        #   en: Lua profiling disabled
+        #   ch: 禁用 Lua 剖析
+        # unit:
+        # range: []
+        # enum_options: []
+        # modification: agent_restart
+        # ee_feature: false
+        # description:
+        #   en: |-
+        #     Disable Lua interpreter profiling. When disabled, Lua process stack traces will not be collected,
+        #     saving approximately 13 MB of kernel memory.
+        #     This controls the following eBPF maps:
+        #     - lua_tstate_map: Per-thread lua_State cache (~7 MB)
+        #     - lua_lang_flags_map: Per-process Lua/LuaJIT type flags (~2.5 MB)
+        #     - lua_unwind_info_map: Per-process unwinding metadata (~3 MB)
+        #     - lua_offsets_map, luajit_offsets_map: Lua/LuaJIT struct offset tables (< 2 KB total)
+        #   ch: |-
+        #     禁用 Lua 解释器剖析功能。禁用后将不会采集 Lua 进程的函数调用栈，可节省约 13 MB 的内核内存。
+        #     此配置项控制以下 eBPF maps 的创建：
+        #     - lua_tstate_map：缓存每线程 lua_State 栈（按线程，容量较大，约 7 MB）
+        #     - lua_lang_flags_map：记录进程 Lua/LuaJIT 类型标记（约 2.5 MB）
+        #     - lua_unwind_info_map：存储进程级 unwinding 元信息（约 3 MB）
+        #     - lua_offsets_map、luajit_offsets_map：存储 Lua/LuaJIT 结构偏移表（总计 < 2 KB）
+        lua_disabled: false
     # type: section
     # name:
     #   en: Network