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2. 3. HandlerSocket plugin
4. HandlerSocket plugin
5. mysqld client app Handler Interface Innodb MyISAM Other storage engines SQL Layer HandlerSocket Plugin Listener for libmysql libmysql libhsclient Applications 6.
7. : SQL for MySQL (HandlerSocket )
8.
9. (1)
10. (2)
->MySQL + HandlerSocket KVS 11. (3)
->MySQL NoSQL 12. mobage 13. mobage
14.
15.
16. HandlerSocket 17. (libmysql )
18. HandlerSocket
19. HandlerSocket
20. 21. HandlerSocket ( )
29. CPU 30. oprofile libmysql/mysqld
samples|%| ------------------ 9669940 53.1574 mysqld 4438098 24.3970 vmlinux 1835976 10.0927 libpthread-2.5.so 16806569.2389 libc-2.5.so 3979702.1877 e1000e 891360.4900 oprofiled 428810.2357 oprofile 31. oprofile libmysql/mysqld
samples%symbol name 7480227.7355MYSQLparse(void*) 2197022.2720my_pthread_fastmutex_lock 2056062.1262make_join_statistics(JOIN*, TABLE_LIST*, 1982342.0500btr_search_guess_on_hash 1807311.8690JOIN::optimize() 1771201.8317row_search_for_mysql 1711851.7703lex_one_token(void*, void*) 1626831.6824alloc_root 1318231.3632read_view_open_now 1227951.2699mysql_select(THD*, Item***, TABLE_LIST*, 1002761.0370open_table(THD*, TABLE_LIST*, st_mem_root*, 995751.0297mem_pool_fill_free_list 964340.9973build_template(row_prebuilt_struct*, THD*, 863490.8930get_hash_symbol(char const*, unsigned int, 32. oprofile libmysql/mysqld
samples%symbol name 2043934.6054schedule 1186482.6734tcp_sendmsg 1158322.6099tcp_recvmsg 1065372.4005tcp_v4_rcv 1039152.3414tcp_ack 1035342.3328system_call 938642.1150dev_queue_xmit 868311.9565__mod_timer 858911.9353tcp_rcv_established 840831.8946.text.task_rq_lock 33. oprofile libmysql/mysqld
34. oprofile HandlerSocket
samples|%| ------------------ 1919039 51.0453 vmlinux 811998 21.5987 mysqld 421215 11.2041 libpthread-2.5.so 2071665.5105 e1000e 1915665.0955 HandlerSocket.so 1886185.0171 libc-2.5.so 136220.3623 oprofiled 57070.1518 oprofile 35. oprofile HandlerSocket
samples%symbol name 11968414.7394btr_search_guess_on_hash 582027.1678row_search_for_mysql 469465.7815mutex_delay 386174.7558my_pthread_fastmutex_lock 377074.6437buf_page_get_known_nowait 365284.4985rec_get_offsets_func 346254.2642build_template(row_prebuilt_struct*, THD*, TABLE*,200242.4660row_sel_store_mysql_rec 193472.3826btr_cur_search_to_nth_level 167012.0568row_sel_convert_mysql_key_to_innobase 133431.6432cmp_dtuple_rec_with_match 113811.4016ha_innobase::index_read(unsigned char*,111761.3764dict_index_copy_types 107621.3254mtr_memo_slot_release 107341.3219ha_innobase::init_table_handle_for_HANDLER() 36. oprofile HandlerSocket
samples%symbol name 1290386.7241tcp_sendmsg 800804.1729tcp_v4_rcv 696583.6298dev_queue_xmit 661713.4481.text.skb_release_data 633163.2994__qdisc_run 602793.1411tcp_recvmsg 597033.1111ip_output 584623.0464.text.skb_release_head_state 488762.5469tcp_ack 487332.5394__alloc_skb 456602.3793ip_queue_xmit 446712.3278tcp_transmit_skb 37. oprofile HandlerSocket
38. 39.
40.
41. HandlerSocket DB readview DB (1/ ) HandlerSocket 42. HandlerSocket DB DB HandlerSocket 43.
44. HandlerSocket
45. 46. C/S