Guys here is the oprofile output. What I was noticing is that when using the FK the calls to handle_connections_sockets Just jumps up, as well as THD::THD(bool, bool) so main thread object creation when WSREP is active. let me know if I can help more. Without FK -------------- Using /tmp/oprofile/oprofile_data/samples/ for samples directory. CPU: Core 2, speed 2.2e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 CPU_CLK_UNHALT...| samples| %| ------------------ 3251 100.000 mysqld CPU_CLK_UNHALT...| samples| %| ------------------ 1185 36.4503 libc-2.17.so 1066 32.7899 no-vmlinux 907 27.8991 mysqld 70 2.1532 libpthread-2.17.so 8 0.2461 libstdc++.so.6.0.17 6 0.1846 libgalera_smm.so 5 0.1538 [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) 3 0.0923 libcrypto.so.1.0.0 1 0.0308 libgcc_s.so.1 With FK -------------- root@tusacentral01:/tmp/oprofile# opreport Using /tmp/oprofile/oprofile_data/samples/ for samples directory. CPU: Core 2, speed 2.2e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 CPU_CLK_UNHALT...| samples| %| ------------------ 7239 100.000 mysqld CPU_CLK_UNHALT...| samples| %| ------------------ 2811 38.8313 no-vmlinux 2779 38.3893 mysqld 1164 16.0796 libc-2.17.so 340 4.6968 libpthread-2.17.so 88 1.2156 [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) 57 0.7874 libstdc++.so.6.0.17 Without FK -------------- root@tusacentral01:/tmp/oprofile# opreport -l -p /lib/modules/`uname -r` Using /tmp/oprofile/oprofile_data/samples/ for samples directory. warning: /no-vmlinux could not be found. warning: [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) could not be found. CPU: Core 2, speed 2.2e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 samples % image name symbol name 1185 36.5290 libc-2.17.so /lib/i386-linux-gnu/libc-2.17.so 1066 32.8607 no-vmlinux /no-vmlinux 50 1.5413 mysqld show_status_array(THD*, char const*, st_mysql_show_var*, enum_var_type, system_status_var*, char const*, TABLE*, bool, Item*) 44 1.3564 mysqld my_utf8_uni 42 1.2947 mysqld THD::THD(bool, bool) 36 1.1097 mysqld heap_scan 34 1.0481 mysqld hp_allocate_chunkset 28 0.8631 mysqld my_qsort 27 0.8323 mysqld my_well_formed_len_mb 25 0.7707 libpthread-2.17.so pthread_mutex_trylock 22 0.6782 mysqld __i686.get_pc_thunk.bx 19 0.5857 mysqld strnmov 18 0.5549 mysqld Field_varstring::store(char const*, unsigned int, charset_info_st const*) 18 0.5549 mysqld handle_connections_sockets() 16 0.4932 mysqld well_formed_copy_nchars(charset_info_st const*, char*, unsigned int, charset_info_st const*, char const*, unsigned int, unsigned int, char const**, char const**, char const**) 15 0.4624 mysqld sql_rnd_with_mutex() 14 0.4316 mysqld show_cmp(st_mysql_show_var*, st_mysql_show_var*) 12 0.3699 mysqld LEX::LEX() 12 0.3699 mysqld THD::init() 12 0.3699 mysqld plugin_thdvar_init(THD*, bool) 11 0.3391 libpthread-2.17.so __pthread_mutex_unlock_usercnt 11 0.3391 mysqld MYSQLparse(void*) 11 0.3391 mysqld srv_export_innodb_status() 9 0.2774 mysqld Field_varstring::val_str(String*, String*) 9 0.2774 mysqld Protocol::net_store_data(unsigned char const*, unsigned int) 9 0.2774 mysqld my_net_write 9 0.2774 mysqld strend 8 0.2466 libstdc++.so.6.0.17 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 8 0.2466 mysqld Protocol::store_string_aux(char const*, unsigned int, charset_info_st const*, charset_info_st const*) 8 0.2466 mysqld binlog_log_row(TABLE*, unsigned char const*, unsigned char const*, bool (*)(THD*, TABLE*, bool, unsigned char const*, unsigned char const*)) 8 0.2466 mysqld enumerate_sys_vars(THD*, bool, enum_var_type) 8 0.2466 mysqld evaluate_join_record(JOIN*, st_join_table*) 8 0.2466 mysqld my_pthread_fastmutex_init 7 0.2158 mysqld MDL_wait::MDL_wait() 7 0.2158 mysqld _my_thread_var 7 0.2158 mysqld heap_write 7 0.2158 mysqld hp_process_record_data_to_chunkset 7 0.2158 mysqld net_write_buff(st_net*, unsigned char const*, unsigned long) 6 0.1850 libpthread-2.17.so fcntl 6 0.1850 libpthread-2.17.so pthread_cond_init@@GLIBC_2.3.2 6 0.1850 mysqld Field_longstr::check_string_copy_error(char const*, char const*, char const*, char const*, bool, charset_info_st const*) const 6 0.1850 mysqld Protocol::send_result_set_row(List*) 6 0.1850 mysqld ha_heap::write_row(unsigned char*) 6 0.1850 mysqld sys_var::value_ptr(THD*, enum_var_type, st_mysql_lex_string*) 5 0.1541 [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) 5 0.1541 mysqld JOIN::optimize() 5 0.1541 mysqld int10_to_str 5 0.1541 mysqld my_net_set_read_timeout 5 0.1541 mysqld mysql_select(THD*, TABLE_LIST*, unsigned int, List&, Item*, SQL_I_List*, SQL_I_List*, Item*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) 5 0.1541 mysqld thd_scheduler::thd_scheduler() 4 0.1233 libpthread-2.17.so pthread_mutex_lock 4 0.1233 mysqld MDL_context::MDL_context() 4 0.1233 mysqld PROFILING::PROFILING() 4 0.1233 mysqld Protocol::write() 4 0.1233 mysqld Protocol_text::store(Field*) 4 0.1233 mysqld Statement::Statement(LEX*, st_mem_root*, Query_arena::enum_state, unsigned long) 4 0.1233 mysqld dtoa.clone.0 4 0.1233 mysqld handler::ha_write_row(unsigned char*) 4 0.1233 mysqld hp_find_block 4 0.1233 mysqld init_dynamic_array2 4 0.1233 mysqld my_charset_same 4 0.1233 mysqld net_store_length 4 0.1233 mysqld select_send::send_data(List&) 4 0.1233 mysqld sub_select(JOIN*, st_join_table*, bool) 4 0.1233 mysqld sys_var::session_value_ptr(THD*, st_mysql_lex_string*) 4 0.1233 mysqld thr_lock_info_init 4 0.1233 mysqld vio_init 3 0.0925 libcrypto.so.1.0.0 /lib/i386-linux-gnu/libcrypto.so.1.0.0 3 0.0925 libgalera_smm.so galera::ReplicatorSMM::stats_get() const 3 0.0925 mysqld Field_longstr::report_if_important_data(char const*, char const*, bool) const 3 0.0925 mysqld String::needs_conversion(unsigned int, charset_info_st const*, charset_info_st const*, unsigned int*) 3 0.0925 mysqld THD::inc_sent_row_count(unsigned long long) 3 0.0925 mysqld __i686.get_pc_thunk.cx 3 0.0925 mysqld handler::ha_rnd_next(unsigned char*) 3 0.0925 mysqld handler::ha_statistic_increment(unsigned long long system_status_var::*) const 3 0.0925 mysqld init_sql_alloc(st_mem_root*, unsigned int, unsigned int) 3 0.0925 mysqld lex_one_token(void*, void*) 3 0.0925 mysqld make_cond_for_info_schema(Item*, TABLE_LIST*) 3 0.0925 mysqld my_free 3 0.0925 mysqld my_malloc 3 0.0925 mysqld my_pthread_fastmutex_lock 3 0.0925 mysqld st_parsing_options::reset() 3 0.0925 mysqld vio_socket_timeout 2 0.0617 libpthread-2.17.so __pthread_disable_asynccancel 2 0.0617 libpthread-2.17.so __pthread_enable_asynccancel 2 0.0617 libpthread-2.17.so __x86.get_pc_thunk.bx 2 0.0617 libpthread-2.17.so pthread_getspecific 2 0.0617 libpthread-2.17.so pthread_mutex_init 2 0.0617 libpthread-2.17.so pthread_mutex_unlock 2 0.0617 mysqld Gtid_set::Gtid_set(Sid_map*, Checkable_rwlock*) 2 0.0617 mysqld Gtid_set::init() 2 0.0617 mysqld Item::Item() 2 0.0617 mysqld JOIN::exec() 2 0.0617 mysqld JOIN::join_free() 2 0.0617 mysqld JOIN::prepare(TABLE_LIST*, unsigned int, Item*, unsigned int, st_order*, st_order*, Item*, st_select_lex*, st_select_lex_unit*) 2 0.0617 mysqld MYSQL_BIN_LOG::commit(THD*, bool) 2 0.0617 mysqld Protocol::send_result_set_metadata(List*, unsigned int) 2 0.0617 mysqld Query_tables_list::reset_query_tables_list(bool) 2 0.0617 mysqld Statement_map::Statement_map() 2 0.0617 mysqld THD::clear_slow_extended() 2 0.0617 mysqld THD::reset_diff_stats() 2 0.0617 mysqld THD::reset_stats() 2 0.0617 mysqld THD::set_command(enum_server_command) 2 0.0617 mysqld THD::update_charset() 2 0.0617 mysqld acl_authenticate(THD*, unsigned int) 2 0.0617 mysqld closecon_handlerton(THD*, st_plugin_int*, void*) 2 0.0617 mysqld connection_class_handler(THD*, unsigned int, char*) 2 0.0617 mysqld create_tmp_table(THD*, TMP_TABLE_PARAM*, List&, st_order*, bool, bool, unsigned long long, unsigned long long, char const*) 2 0.0617 mysqld getopt_constraint_find(char const*, unsigned int, char) 2 0.0617 mysqld handler::ha_thd() const 2 0.0617 mysqld hp_get_encoded_data_length 2 0.0617 mysqld init_socket_noop 2 0.0617 mysqld make_join_readinfo(JOIN*, unsigned long long, unsigned int) 2 0.0617 mysqld make_join_statistics(JOIN*, TABLE_LIST*, Item*, Mem_root_array*, bool) 2 0.0617 mysqld my_net_init 2 0.0617 mysqld my_net_local_init 2 0.0617 mysqld my_strcasecmp_utf8 2 0.0617 mysqld mysql_audit_init_thd(THD*) 2 0.0617 mysqld mysql_execute_command(THD*) 2 0.0617 mysqld net_after_header_psi(st_net*, void*, unsigned int, char) 2 0.0617 mysqld query_cache_insert(char const*, unsigned long, unsigned int) 2 0.0617 mysqld randominit 2 0.0617 mysqld tp_get_idle_thread_count() 2 0.0617 mysqld vio_io_wait 1 0.0308 libgalera_smm.so asio::ssl::detail::openssl_init::do_init::instance() 1 0.0308 libgalera_smm.so asio::ssl::detail::openssl_init::do_init::openssl_id_func() 1 0.0308 libgalera_smm.so gu::Lock::Lock(gu::Mutex const&) 1 0.0308 libgcc_s.so.1 __umoddi3 1 0.0308 libpthread-2.17.so __errno_location 1 0.0308 libpthread-2.17.so accept 1 0.0308 libpthread-2.17.so pthread_cond_signal@@GLIBC_2.3.2 1 0.0308 libpthread-2.17.so pthread_mutex_destroy 1 0.0308 libpthread-2.17.so pthread_rwlock_unlock 1 0.0308 libpthread-2.17.so send 1 0.0308 mysqld Diagnostics_area::Diagnostics_area(unsigned long long, bool) 1 0.0308 mysqld Diagnostics_area::reset_diagnostics_area() 1 0.0308 mysqld Diagnostics_area::set_eof_status(THD*) 1 0.0308 mysqld Field::char_length() 1 0.0308 mysqld Field::free() 1 0.0308 mysqld Field_varstring::pack_length() const 1 0.0308 mysqld Group_cache::get_gtids(Gtid_set*) const 1 0.0308 mysqld Item::operator new(unsigned int, st_mem_root*) 1 0.0308 mysqld Item_basic_constant::cleanup() 1 0.0308 mysqld Item_field::charset_for_protocol() const 1 0.0308 mysqld Item_field::send(Protocol*, String*) 1 0.0308 mysqld Item_func_get_system_var::field_type() const 1 0.0308 mysqld Item_func_get_system_var::val_str(String*) 1 0.0308 mysqld Item_string::type() const 1 0.0308 mysqld JOIN::cleanup(bool) 1 0.0308 mysqld JOIN::cleanup_item_list(List&) const 1 0.0308 mysqld JOIN::get_best_combination() 1 0.0308 mysqld JOIN::prepare_result(List**) 1 0.0308 mysqld Open_tables_state::reset_open_tables_state() 1 0.0308 mysqld Optimize_table_order::best_extension_by_limited_search(unsigned long long, unsigned int, double, double, unsigned int) 1 0.0308 mysqld PROFILING::set_query_source(char*, unsigned int) 1 0.0308 mysqld Protocol::end_statement() 1 0.0308 mysqld Protocol::init(THD*) 1 0.0308 mysqld Query_cache::insert(Query_cache_tls*, char const*, unsigned long, unsigned int) 1 0.0308 mysqld Security_context::init() 1 0.0308 mysqld String::numchars() const 1 0.0308 mysqld Sys_var_enum::session_value_ptr(THD*, st_mysql_lex_string*) 1 0.0308 mysqld Sys_var_flagset::session_value_ptr(THD*, st_mysql_lex_string*) 1 0.0308 mysqld THD::cleanup_after_query() 1 0.0308 mysqld THD::release_resources() 1 0.0308 mysqld THD::reset_for_next_command() 1 0.0308 mysqld THD::set_query_id(long long) 1 0.0308 mysqld THD::store_globals() 1 0.0308 mysqld THD::~THD() 1 0.0308 mysqld THD::~THD() 1 0.0308 mysqld acl_check_host(char const*, char const*) 1 0.0308 mysqld alloc_root 1 0.0308 mysqld binlog_close_connection(handlerton*, THD*) 1 0.0308 mysqld bitmap_lock_set_next 1 0.0308 mysqld buf_get_total_stat(buf_pool_stat_t*) 1 0.0308 mysqld check_access(THD*, unsigned long, char const*, unsigned long*, st_grant_internal_info*, bool, bool) 1 0.0308 mysqld check_scramble 1 0.0308 mysqld check_stack_overrun(THD*, long, unsigned char*) 1 0.0308 mysqld check_table_name(char const*, unsigned int, bool) 1 0.0308 mysqld create_thread_to_handle_connection(THD*) 1 0.0308 mysqld cset_hash_sort_adapter 1 0.0308 mysqld delete_dynamic 1 0.0308 mysqld end_connection(THD*) 1 0.0308 mysqld end_send(JOIN*, st_join_table*, bool) 1 0.0308 mysqld find_keyword(Lex_input_stream*, unsigned int, bool) 1 0.0308 mysqld find_mpvio_user(MPVIO_EXT*) 1 0.0308 mysqld flagset_to_string(THD*, st_mysql_lex_string*, unsigned long long, char const**) 1 0.0308 mysqld free_tmp_table(THD*, TABLE*) 1 0.0308 mysqld get_charset 1 0.0308 mysqld get_schema_tables_result(JOIN*, enum_schema_table_state) 1 0.0308 mysqld gtid_rollback(THD*) 1 0.0308 mysqld ha_commit_low(THD*, bool, bool) 1 0.0308 mysqld ha_heap::drop_table(char const*) 1 0.0308 mysqld ha_heap::rnd_init(bool) 1 0.0308 mysqld ha_heap::scan_time() 1 0.0308 mysqld ha_release_temporary_latches(THD*) 1 0.0308 mysqld handle_select(THD*, select_result*, unsigned long) 1 0.0308 mysqld heap_prepare_hp_create_info(TABLE*, bool, st_heap_create_info*) 1 0.0308 mysqld hp_copy_record_data_to_chunkset 1 0.0308 mysqld init_alloc_root 1 0.0308 mysqld init_net_server_extension(THD*) 1 0.0308 mysqld init_tmp_table_share(THD*, TABLE_SHARE*, char const*, unsigned int, char const*, char const*) 1 0.0308 mysqld intern_find_sys_var(char const*, unsigned int) 1 0.0308 mysqld intern_sys_var_ptr(THD*, int, bool) 1 0.0308 mysqld is_indexed_agg_distinct(JOIN*, List*) 1 0.0308 mysqld lock_tables(THD*, TABLE_LIST*, unsigned int, unsigned int) 1 0.0308 mysqld log_slow_applicable(THD*) 1 0.0308 mysqld longlong10_to_str 1 0.0308 mysqld make_join_select(JOIN*, Item*) 1 0.0308 mysqld multadd 1 0.0308 mysqld my_hash_element 1 0.0308 mysqld my_hash_first 1 0.0308 mysqld my_hash_sort_utf8 1 0.0308 mysqld my_micro_time 1 0.0308 mysqld my_net_read 1 0.0308 mysqld my_rnd 1 0.0308 mysqld my_strnncoll_utf8 1 0.0308 mysqld my_strtoll10 1 0.0308 mysqld mysql_parse(THD*, char*, unsigned int, Parser_state*) 1 0.0308 mysqld net_send_ok(THD*, unsigned int, unsigned int, unsigned long long, unsigned long long, char const*) 1 0.0308 mysqld open_tmp_table(TABLE*) 1 0.0308 mysqld optimize_cond(THD*, Item*, COND_EQUAL**, List*, bool, Item::cond_result*) 1 0.0308 mysqld parse_sql(THD*, Parser_state*, Object_creation_ctx*) 1 0.0308 mysqld prepare_schema_table(THD*, LEX*, Table_ident*, enum_schema_tables) 1 0.0308 mysqld remove_global_thread(THD*) 1 0.0308 mysqld rr_sequential(READ_RECORD*) 1 0.0308 mysqld rw_pr_init 1 0.0308 mysqld select_send::send_eof() 1 0.0308 mysqld send_server_handshake_packet(MPVIO_EXT*, char const*, unsigned int) 1 0.0308 mysqld setup_join_buffering(st_join_table*, JOIN*, unsigned long long, unsigned int, bool*) 1 0.0308 mysqld show_ssl_ctx_sess_cache_full(THD*, st_mysql_show_var*, char*) 1 0.0308 mysqld show_ssl_ctx_sess_get_cache_size(THD*, st_mysql_show_var*, char*) 1 0.0308 mysqld sp_cache_clear(sp_cache**) 1 0.0308 mysqld st_select_lex::cleanup() 1 0.0308 mysqld st_select_lex::init_query() 1 0.0308 mysqld st_select_lex::init_select() 1 0.0308 mysqld st_select_lex::master_unit() 1 0.0308 mysqld st_select_lex_unit::init_query() 1 0.0308 mysqld sys_var::do_deprecated_warning(THD*) 1 0.0308 mysqld sys_var_pluginvar::do_value_ptr(THD*, enum_var_type, st_mysql_lex_string*) 1 0.0308 mysqld sys_var_pluginvar::plugin_var_typelib() 1 0.0308 mysqld sys_var_pluginvar::real_value_ptr(THD*, enum_var_type) 1 0.0308 mysqld thd_increment_bytes_received 1 0.0308 mysqld thd_init_client_charset(THD*, unsigned int) 1 0.0308 mysqld thd_prepare_connection(THD*) 1 0.0308 mysqld thd_scheduler::~thd_scheduler() 1 0.0308 mysqld thr_lock_init 1 0.0308 mysqld thr_lock_merge_status 1 0.0308 mysqld trans_commit_implicit(THD*) 1 0.0308 mysqld trans_has_updated_trans_table(THD const*) 1 0.0308 mysqld truncate_cached_file 1 0.0308 mysqld vio_cancel 1 0.0308 mysqld vio_read 1 0.0308 mysqld vio_timeout 1 0.0308 mysqld vio_write 1 0.0308 mysqld wild_case_compare(charset_info_st*, char const*, char const*) 1 0.0308 mysqld wsrep_register_hton(THD*, bool) 1 0.0308 mysqld wsrep_thd_trx_seqno With FK -------------- root@tusacentral01:/tmp/oprofile# opreport -l -p /lib/modules/`uname -r` Using /tmp/oprofile/oprofile_data/samples/ for samples directory. warning: /no-vmlinux could not be found. warning: [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) could not be found. CPU: Core 2, speed 2.2e+06 MHz (estimated) Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a unit mask of 0x00 (Unhalted core cycles) count 100000 samples % image name symbol name 2811 38.8797 no-vmlinux /no-vmlinux 1164 16.0996 libc-2.17.so /lib/i386-linux-gnu/libc-2.17.so 496 6.8603 mysqld THD::THD(bool, bool) 292 4.0387 mysqld handle_connections_sockets() 144 1.9917 mysqld LEX::LEX() 130 1.7981 mysqld plugin_thdvar_init(THD*, bool) 91 1.2586 mysqld THD::init() 91 1.2586 mysqld sql_rnd_with_mutex() 88 1.2172 [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) [vdso] (tgid:4884 range:0xb77d5000-0xb77d5fff) 79 1.0927 mysqld _my_thread_var 66 0.9129 libpthread-2.17.so pthread_mutex_init 65 0.8990 mysqld MDL_wait::MDL_wait() 63 0.8714 mysqld my_pthread_fastmutex_init 62 0.8575 libpthread-2.17.so pthread_mutex_trylock 61 0.8437 mysqld vio_init 57 0.7884 libstdc++.so.6.0.17 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 54 0.7469 mysqld init_sql_alloc(st_mem_root*, unsigned int, unsigned int) 50 0.6916 mysqld vio_fastsend 47 0.6501 mysqld Statement::Statement(LEX*, st_mem_root*, Query_arena::enum_state, unsigned long) 43 0.5947 mysqld Query_tables_list::reset_query_tables_list(bool) 43 0.5947 mysqld init_dynamic_array2 41 0.5671 mysqld thr_lock_info_init 39 0.5394 mysqld String::needs_conversion(unsigned int, charset_info_st const*, charset_info_st const*, unsigned int*) 39 0.5394 mysqld __i686.get_pc_thunk.bx 39 0.5394 mysqld my_rnd 37 0.5118 libpthread-2.17.so pthread_cond_signal@@GLIBC_2.3.2 37 0.5118 mysqld THD::reset_diff_stats() 35 0.4841 mysqld randominit 34 0.4703 libpthread-2.17.so __pthread_mutex_unlock_usercnt 33 0.4564 mysqld init_alloc_root 33 0.4564 mysqld my_malloc 32 0.4426 libpthread-2.17.so fcntl 32 0.4426 libpthread-2.17.so pthread_getspecific 32 0.4426 mysqld Security_context::init() 31 0.4288 libpthread-2.17.so pthread_cond_init@@GLIBC_2.3.2 31 0.4288 mysqld PROFILING::PROFILING() 29 0.4011 mysqld Statement_map::Statement_map() 29 0.4011 mysqld Warning_info::Warning_info(unsigned long long, bool) 28 0.3873 libpthread-2.17.so accept 28 0.3873 mysqld my_net_local_init 27 0.3734 mysqld MDL_context::MDL_context() 26 0.3596 mysqld create_thread_to_handle_connection(THD*) 26 0.3596 mysqld my_charset_same 25 0.3458 mysqld st_parsing_options::reset() 24 0.3320 mysqld Diagnostics_area::Diagnostics_area(unsigned long long, bool) 24 0.3320 mysqld Diagnostics_area::reset_diagnostics_area() 23 0.3181 mysqld _my_hash_init 23 0.3181 mysqld init_socket_noop 23 0.3181 mysqld mysql_socket_vio_new 22 0.3043 mysqld THD::clear_slow_extended() 21 0.2905 mysqld rw_pr_init 21 0.2905 mysqld thd_scheduler::thd_scheduler() 20 0.2766 mysqld Protocol::init(THD*) 20 0.2766 mysqld my_pthread_fastmutex_lock 19 0.2628 mysqld THD::update_charset() 19 0.2628 mysqld my_net_set_write_timeout 19 0.2628 mysqld vio_socket_timeout 16 0.2213 mysqld THD::reset_stats() 16 0.2213 mysqld my_net_init 16 0.2213 mysqld my_net_set_read_timeout 16 0.2213 mysqld mysql_audit_init_thd(THD*) 15 0.2075 mysqld vio_timeout 14 0.1936 mysqld Gtid_set::init() 14 0.1936 mysqld Open_tables_state::reset_open_tables_state() 14 0.1936 mysqld init_net_server_extension(THD*) 13 0.1798 mysqld QueryStripComments::QueryStripComments() 13 0.1798 mysqld THD::set_command(enum_server_command) 12 0.1660 mysqld __i686.get_pc_thunk.cx 11 0.1521 mysqld Gtid_set::Gtid_set(Sid_map*, Checkable_rwlock*) 9 0.1245 mysqld my_free 8 0.1107 mysqld set_thread_command_noop 5 0.0692 libpthread-2.17.so __x86.get_pc_thunk.bx 5 0.0692 libpthread-2.17.so pthread_mutex_unlock 4 0.0553 libpthread-2.17.so __pthread_disable_asynccancel 4 0.0553 libpthread-2.17.so __pthread_enable_asynccancel 4 0.0553 mysqld init_mutex_noop 2 0.0277 mysqld init_cond_noop 1 0.0138 mysqld vio_fd