int main(int argc_, char ** argv_)
{
#if USE_EMBEDDED_COMPILER
if (argc_ >= 2 && 0 == strcmp(argv_[1], "-cc1"))
return mainEntryClickHouseClang(argc_, argv_);
#endif
#if USE_TCMALLOC
/** Without this option, tcmalloc returns memory to OS too frequently for medium-sized memory allocations
* (like IO buffers, column vectors, hash tables, etc.),
* that lead to page faults and significantly hurts performance.
*/
MallocExtension::instance()->SetNumericProperty("tcmalloc.aggressive_memory_decommit", false);
#endif
std::vector<char *> argv(argv_, argv_ + argc_);
/// Print a basic help if nothing was matched
MainFunc main_func = printHelp;
for (auto & application : clickhouse_applications)
{
if (isClickhouseApp(application.first, argv))
{
main_func = application.second;
break;
}
}
return main_func(static_cast<int>(argv.size()), argv.data());
}
int main(int argc_, char ** argv_)
{
#if USE_TCMALLOC
MallocExtension::instance()->SetNumericProperty("tcmalloc.aggressive_memory_decommit", false);
#endif
std::vector<char *> argv(argv_, argv_ + argc_);
auto main_func = mainEntryClickHouseServer;
if (isClickhouseApp("local", argv))
main_func = mainEntryClickHouseLocal;
else if (isClickhouseApp("client", argv))
main_func = mainEntryClickHouseClient;
else if (isClickhouseApp("benchmark", argv))
main_func = mainEntryClickHouseBenchmark;
else if (isClickhouseApp("server", argv)) /// --server arg should be cut
main_func = mainEntryClickHouseServer;
else if (isClickhouseApp("performance-test", argv))
main_func = mainEntryClickhousePerformanceTest;
else if (isClickhouseApp("extract-from-config", argv))
main_func = mainEntryClickHouseExtractFromConfig;
return main_func(static_cast<int>(argv.size()), argv.data());
}