diff --git a/src/modules/keydb_modstatsd/modmain.cpp b/src/modules/keydb_modstatsd/modmain.cpp index ab5d12b05..011d6108e 100644 --- a/src/modules/keydb_modstatsd/modmain.cpp +++ b/src/modules/keydb_modstatsd/modmain.cpp @@ -12,6 +12,8 @@ #include #include #include +#include +#include using namespace Statsd; @@ -529,6 +531,18 @@ void handle_client_list_response(struct RedisModuleCtx *ctx, const char *szReply g_stats->gauge("total_replica_client_output_buffer", totalReplicaClientOutputBuffer); } +void emit_system_free_memory() { + std::ifstream meminfo("/proc/meminfo"); + std::string line; + while (std::getline(meminfo, line)) { + if (line.find("MemFree:") != std::string::npos) { + unsigned long memFreeInKB; + std::sscanf(line.c_str(), "MemFree: %lu kB", &memFreeInKB); + g_stats->gauge("systemFreeMemory_MB", memFreeInKB / 1024); + return; + } + } +} void event_cron_handler(struct RedisModuleCtx *ctx, RedisModuleEvent eid, uint64_t subevent, void *data) { static time_t lastTime = 0; @@ -600,6 +614,10 @@ void event_cron_handler(struct RedisModuleCtx *ctx, RedisModuleEvent eid, uint64 // g_stats->timing("handle_client_info_time_taken_us", ustime() - commandStartTime); // RedisModule_FreeCallReply(reply); + commandStartTime = ustime(); + emit_system_free_memory(); + g_stats->timing("emit_free_system_memory_time_taken_us", ustime() - commandStartTime); + /* Log Keys */ reply = RedisModule_Call(ctx, "dbsize", ""); long long keys = RedisModule_CallReplyInteger(reply);