[Wikitech-l] Zend performance (Was: WYSIWYG and parser plans)

some oprofile data showsthat pcre is few percent of execution time - and there's really lots of Zend internals that stand in the way - memory management (HPHP implements it as C++ object allocations via jemalloc), symbol resolutions (native calls in C++), etc. Domas samples % image name app name symbol name 492400 9.6648 libphp5.so libphp5.so _zend_mm_alloc_int 451573 8.8634 libc-2.7.so libc-2.7.so (no symbols) 347812 6.8268 libphp5.so libphp5.so zend_hash_find 345665 6.7847 no-vmlinux no-vmlinux (no symbols) 330513 6.4873 libphp5.so libphp5.so _zend_mm_free_int 225755 4.4311 libpcre.so.3.12.1 libpcre.so.3.12.1 (no symbols) 159925 3.1390 libphp5.so libphp5.so zend_do_fcall_common_helper_SPEC 137709 2.7029 libphp5.so libphp5.so _zval_ptr_dtor 127233 2.4973 libxml2.so.2.6.31 libxml2.so.2.6.31 (no symbols) 111249 2.1836 libphp5.so libphp5.so zend_hash_quick_find 93994 1.8449 libphp5.so libphp5.so _zend_hash_quick_add_or_update 84693 1.6623 libphp5.so libphp5.so zend_assign_to_variable 84256 1.6538 fss.so fss.so (no symbols) 56474 1.1085 libphp5.so libphp5.so execute 49959 0.9806 libphp5.so libphp5.so zend_hash_destroy 48450 0.9510 libz.so.1.2.3.3 libz.so.1.2.3.3 (no symbols) 46967 0.9219 libphp5.so libphp5.so ZEND_JMPZ_SPEC_TMP_HANDLER 46523 0.9131 libphp5.so libphp5.so _zend_hash_add_or_update 45747 0.8979 libphp5.so libphp5.so zend_str_tolower_copy 39154 0.7685 libphp5.so libphp5.so zend_fetch_dimension_address 35356 0.6940 libphp5.so libphp5.so ZEND_RECV_SPEC_HANDLER 33381 0.6552 libphp5.so libphp5.so compare_function 32660 0.6410 libphp5.so libphp5.so _zend_hash_index_update_or_next_insert 31815 0.6245 libphp5.so libphp5.so zend_parse_va_args 31689 0.6220 libphp5.so libphp5.so ZEND_SEND_VAR_SPEC_CV_HANDLER 31554 0.6193 libphp5.so libphp5.so _emalloc 30404 0.5968 libphp5.so libphp5.so _get_zval_ptr_var 29812 0.5851 libphp5.so libphp5.so ZEND_ASSIGN_REF_SPEC_CV_VAR_HANDLER 28092 0.5514 libphp5.so libphp5.so ZEND_DO_FCALL_SPEC_CONST_HANDLER 27760 0.5449 libphp5.so libphp5.so zend_hash_clean 27589 0.5415 libphp5.so libphp5.so zend_fetch_var_address_helper_SPEC_CONST 26731 0.5247 libphp5.so libphp5.so _zval_dtor_func 24732 0.4854 libphp5.so libphp5.so ZEND_ASSIGN_SPEC_CV_VAR_HANDLER 24732 0.4854 libphp5.so libphp5.so ZEND_RECV_INIT_SPEC_CONST_HANDLER 22587 0.4433 libphp5.so libphp5.so zend_send_by_var_helper_SPEC_CV 22176 0.4353 libphp5.so libphp5.so _efree 21911 0.4301 libphp5.so libphp5.so .plt 21102 0.4142 libphp5.so libphp5.so ZEND_SEND_VAL_SPEC_CONST_HANDLER 19556 0.3838 libphp5.so libphp5.so zend_fetch_property_address_read_helper_SPEC_UNUSED_CONST 18568 0.3645 libphp5.so libphp5.so zend_get_property_info 18348 0.3601 libphp5.so libphp5.so zend_std_get_method 18279 0.3588 libphp5.so libphp5.so zend_get_hash_value 17944 0.3522 libphp5.so libphp5.so php_var_unserialize 17461 0.3427 libphp5.so libphp5.so _zval_copy_ctor_func 17187 0.3373 libtidy-0.99.so.0.0.0 libtidy-0.99.so.0.0.0 (no symbols) 16341 0.3207 libphp5.so libphp5.so zend_get_parameters_ex 16103 0.3161 libphp5.so libphp5.so zend_std_read_property 15662 0.3074 libphp5.so libphp5.so zend_hash_copy 14678 0.2881 libphp5.so libphp5.so zend_binary_strcmp 14556 0.2857 apc.so apc.so my_copy_hashtable_ex 14279 0.2803 libphp5.so libphp5.so _zend_mm_realloc_int 13993 0.2747 oprofiled oprofiled (no symbols) 13680 0.2685 libphp5.so libphp5.so dom_nodelist_length_read 13265 0.2604 libphp5.so libphp5.so zval_add_ref 13166 0.2584 libphp5.so libphp5.so zend_objects_store_del_ref_by_handle 13084 0.2568 libphp5.so libphp5.so ZEND_INIT_METHOD_CALL_SPEC_CV_CONST_HANDLER 13030 0.2558 libphp5.so libphp5.so zend_assign_to_object 11822 0.2320 libphp5.so libphp5.so ZEND_INSTANCEOF_SPEC_CV_HANDLER 11511 0.2259 libphp5.so libphp5.so zend_fetch_property_address_read_helper_SPEC_CV_CONST 11425 0.2242 libphp5.so libphp5.so _estrndup 11340 0.2226 libphp5.so libphp5.so zendi_smart_strcmp 11227 0.2204 libphp5.so libphp5.so ZEND_JMPZ_SPEC_VAR_HANDLER 11174 0.2193 libphp5.so libphp5.so ZEND_FETCH_CLASS_SPEC_CONST_HANDLER 11080 0.2175 libphp5.so libphp5.so _zend_hash_init 10908 0.2141 libphp5.so libphp5.so zend_object_store_get_object 10623 0.2085 libphp5.so libphp5.so zend_assign_to_variable_reference 10577 0.2076 libphp5.so libphp5.so zend_hash_index_find 10231 0.2008 libphp5.so libphp5.so ZEND_JMP_SPEC_HANDLER 10227 0.2007 libphp5.so libphp5.so ZEND_RETURN_SPEC_CONST_HANDLER 9400 0.1845 libphp5.so libphp5.so _safe_emalloc 8973 0.1761 libphp5.so libphp5.so ZEND_BOOL_SPEC_TMP_HANDLER 8652 0.1698 libphp5.so libphp5.so zend_lookup_class_ex 8504 0.1669 libphp5.so libphp5.so ZEND_JMPZ_EX_SPEC_TMP_HANDLER 8489 0.1666 libphp5.so libphp5.so zend_call_function 8448 0.1658 libphp5.so libphp5.so convert_to_boolean 8307 0.1630 libphp5.so libphp5.so ZEND_JMPZ_SPEC_CV_HANDLER 8297 0.1629 libphp5.so libphp5.so zend_hash_rehash 8092 0.1588 libphp5.so libphp5.so ZEND_INIT_METHOD_CALL_SPEC_UNUSED_CONST_HANDLER 7855 0.1542 libphp5.so libphp5.so ZEND_RETURN_SPEC_VAR_HANDLER 7659 0.1503 libphp5.so libphp5.so instanceof_function_ex 7552 0.1482 libphp5.so libphp5.so ZEND_FE_FETCH_SPEC_VAR_HANDLER 7383 0.1449 libphp5.so libphp5.so ZEND_FETCH_OBJ_R_SPEC_UNUSED_CONST_HANDLER 7036 0.1381 libphp5.so libphp5.so is_identical_function 7012 0.1376 libphp5.so libphp5.so php_is_type 6907 0.1356 libphp5.so libphp5.so zend_hash_get_current_data_ex 6901 0.1355 libphp5.so libphp5.so ZEND_SEND_REF_SPEC_CV_HANDLER 6881 0.1351 libphp5.so libphp5.so concat_function 6860 0.1346 libphp5.so libphp5.so zend_hash_del_key_or_index 6843 0.1343 libphp5.so libphp5.so php_pcre_match_impl 6648 0.1305 libphp5.so libphp5.so zend_isset_isempty_dim_prop_obj_handler_SPEC_VAR_CV 6600 0.1295 libphp5.so libphp5.so ZEND_ASSIGN_DIM_SPEC_CV_UNUSED_HANDLER 6538 0.1283 libphp5.so libphp5.so _phpi_pop 6306 0.1238 libphp5.so libphp5.so zend_get_constant_ex 6254 0.1228 libphp5.so libphp5.so zif_strtr 5901 0.1158 libphp5.so libphp5.so zend_fetch_class 5829 0.1144 libphp5.so libphp5.so zif_dom_nodelist_item 5809 0.1140 libphp5.so libphp5.so sub_function 5805 0.1139 libphp5.so libphp5.so zend_std_write_property 5789 0.1136 libphp5.so libphp5.so ZEND_RETURN_SPEC_CV_HANDLER 5753 0.1129 libphp5.so libphp5.so _ecalloc 5678 0.1114 libmysqlclient.so.15.0.0 libmysqlclient.so.15.0.0 (no symbols) 5650 0.1109 libphp5.so libphp5.so ZEND_ADD_ARRAY_ELEMENT_SPEC_CONST_UNUSED_HANDLER 5470 0.1074 libphp5.so libphp5.so ZEND_FETCH_W_SPEC_CONST_HANDLER 5262 0.1033 libphp5.so libphp5.so ZEND_SEND_VAL_SPEC_TMP_HANDLER 5259 0.1032 libphp5.so libphp5.so ZEND_ASSIGN_SPEC_CV_TMP_HANDLER 5128 0.1007 libphp5.so libphp5.so ZEND_FETCH_DIM_W_SPEC_CV_CV_HANDLER