From 3772abba44dd79e77367de4fb123757bbdefe9d9 Mon Sep 17 00:00:00 2001 From: qlndzt Date: Wed, 1 Apr 2026 02:48:19 +0000 Subject: [PATCH] add lua disable config --- agent/src/config/config.rs | 2 ++ agent/src/ebpf/mod.rs | 2 ++ agent/src/ebpf/user/config.h | 4 +++- agent/src/ebpf/user/load.c | 6 +++++- agent/src/ebpf/user/tracer.c | 5 +++++ agent/src/ebpf/user/tracer.h | 1 + agent/src/ebpf_dispatcher.rs | 6 ++++++ server/agent_config/README-CH.md | 29 +++++++++++++++++++++++++++++ server/agent_config/README.md | 29 +++++++++++++++++++++++++++++ server/agent_config/template.yaml | 26 ++++++++++++++++++++++++++ 10 files changed, 108 insertions(+), 2 deletions(-) diff --git a/agent/src/config/config.rs b/agent/src/config/config.rs index c7b5d9fcc49..809378b196b 100644 --- a/agent/src/config/config.rs +++ b/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, } } } diff --git a/agent/src/ebpf/mod.rs b/agent/src/ebpf/mod.rs index aa0b078bb95..53285e1e003 100644 --- a/agent/src/ebpf/mod.rs +++ b/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)] diff --git a/agent/src/ebpf/user/config.h b/agent/src/ebpf/user/config.h index 5d3207a493b..baff309fbfe 100644 --- a/agent/src/ebpf/user/config.h +++ b/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) diff --git a/agent/src/ebpf/user/load.c b/agent/src/ebpf/user/load.c index 2600b209b54..05bcf36889f 100644 --- a/agent/src/ebpf/user/load.c +++ b/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); diff --git a/agent/src/ebpf/user/tracer.c b/agent/src/ebpf/user/tracer.c index 2781d84848b..a949cfdfe9c 100644 --- a/agent/src/ebpf/user/tracer.c +++ b/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; diff --git a/agent/src/ebpf/user/tracer.h b/agent/src/ebpf/user/tracer.h index 8126afc9e0f..056d1173bdc 100644 --- a/agent/src/ebpf/user/tracer.h +++ b/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); diff --git a/agent/src/ebpf_dispatcher.rs b/agent/src/ebpf_dispatcher.rs index 8487256e1dd..87553e49da2 100644 --- a/agent/src/ebpf_dispatcher.rs +++ b/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")] { diff --git a/server/agent_config/README-CH.md b/server/agent_config/README-CH.md index d1bad450428..a2ce293664c 100644 --- a/server/agent_config/README-CH.md +++ b/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**: + +agent_restart + +**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} diff --git a/server/agent_config/README.md b/server/agent_config/README.md index b44bdf0d0f9..22c0cb784bf 100644 --- a/server/agent_config/README.md +++ b/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**: + +agent_restart + +**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} diff --git a/server/agent_config/template.yaml b/server/agent_config/template.yaml index 0e707557e9e..9bef7769b9e 100644 --- a/server/agent_config/template.yaml +++ b/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