Tasks: 583 total, 4 running, 579 sleeping, 0 stopped, 0 zombie
Cpu(s): 35.3%us, 6.9%sy, 0.0%ni, 57.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 65976288k total, 50604344k used, 15371944k free, 7638260k buffers
Swap: 65537156k total, 360k used, 65536796k free, 38368636k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
620 mysql 15 0 3889m 1.3g 5820 S 1110.7 2.0 328:51.92 mysqld
10191 nobody 18 0 161m 18m 3972 R 68.9 0.0 0:02.10 httpd
9701 nobody 17 0 160m 18m 4320 R 50.6 0.0 0:04.73 httpd
10254 nobody 17 0 162m 19m 4312 R 38.4 0.0 0:02.78 httpd
10239 nobody 18 0 163m 20m 4068 S 36.8 0.0 0:01.81 httpd
10255 nobody 17 0 161m 19m 4304 S 19.0 0.0 0:04.71 httpd
9839 nobody 17 0 161m 19m 4324 S 10.5 0.0 0:04.66 httpd
9826 nobody 20 0 161m 19m 4296 S 8.5 0.0 0:04.74 httpd
10182 nobody 15 0 154m 12m 4360 S 1.6 0.0 0:03.26 httpd各位大哥救救小弟吧，这台服务器跑着apache和mysql服务，其中mysql的使用已经1110.7%，这是什么原因哪？
Cpu(s): 35.3%us, 6.9%sy, 0.0%ni, 57.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 65976288k total, 50604344k used, 15371944k free, 7638260k buffers
Swap: 65537156k total, 360k used, 65536796k free, 38368636k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
620 mysql 15 0 3889m 1.3g 5820 S 1110.7 2.0 328:51.92 mysqld
10191 nobody 18 0 161m 18m 3972 R 68.9 0.0 0:02.10 httpd
9701 nobody 17 0 160m 18m 4320 R 50.6 0.0 0:04.73 httpd
10254 nobody 17 0 162m 19m 4312 R 38.4 0.0 0:02.78 httpd
10239 nobody 18 0 163m 20m 4068 S 36.8 0.0 0:01.81 httpd
10255 nobody 17 0 161m 19m 4304 S 19.0 0.0 0:04.71 httpd
9839 nobody 17 0 161m 19m 4324 S 10.5 0.0 0:04.66 httpd
9826 nobody 20 0 161m 19m 4296 S 8.5 0.0 0:04.74 httpd
10182 nobody 15 0 154m 12m 4360 S 1.6 0.0 0:03.26 httpd各位大哥救救小弟吧，这台服务器跑着apache和mysql服务，其中mysql的使用已经1110.7%，这是什么原因哪？
你在top命令后q键上面的1 就可以看到了
| Variable_name | Value |
+---------------------------------------------------+------------------------------------------------------------------------------------------------------------------------+
| auto_increment_increment | 1 |
| auto_increment_offset | 1 |
| autocommit | ON |
| automatic_sp_privileges | ON |
| back_log | 50 |
| basedir | /usr/local/mysql |
| big_tables | OFF |
| binlog_cache_size | 4194304 |
| binlog_direct_non_transactional_updates | OFF |
| binlog_format | STATEMENT |
| binlog_stmt_cache_size | 32768 |
| bulk_insert_buffer_size | 134217728 |
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql/share/charsets/ |
| collation_connection | utf8_general_ci
| collation_database | latin1_swedish_ci |
| collation_server | latin1_swedish_ci |
| completion_type | NO_CHAIN |
| concurrent_insert | ALWAYS |
| connect_timeout | 10 |
| date_format | %Y-%m-%d |
| datetime_format | %Y-%m-%d %H:%i:%s |
| default_storage_engine | InnoDB |
| default_week_format | 0 |
| delay_key_write | ON |
| delayed_insert_limit | 100 |
| delayed_insert_timeout | 300 |
| delayed_queue_size | 1000 |
| div_precision_increment | 4 |
| engine_condition_pushdown | ON |
| error_count | 0 |
| event_scheduler | OFF |
| expire_logs_days | 0 |
| external_user | |
| flush | OFF |
| flush_time | 0 |
| foreign_key_checks | ON |
| ft_boolean_syntax | + -><()~*:""&| |
| ft_max_word_len | 84 |
| ft_min_word_len | 4 |
|
| ft_query_expansion_limit | 20 |
| ft_stopword_file | (built-in) |
| general_log | OFF |
| group_concat_max_len | 1024 |
| have_compress | YES |
| have_crypt | YES |
| have_csv | YES |
| have_dynamic_loading | YES |
| have_geometry | YES |
| have_innodb | YES |
| have_ndbcluster | NO |
| have_openssl | DISABLED |
| have_partitioning | YES |
| have_profiling | YES |
| have_query_cache | YES |
| have_rtree_keys | YES |
| have_ssl | DISABLED |
| have_symlink | YES |
| hostname | servera |
| identity | 0 |
| ignore_builtin_innodb | OFF |
| init_connect | |
| init_file | |
| init_slave | |
| innodb_adaptive_flushing | ON |
| innodb_adaptive_hash_index | ON |
| innodb_additional_mem_pool_size | 8388608 |
| innodb_autoextend_increment | 8 |
| innodb_autoinc_lock_mode | 1 |
| innodb_buffer_pool_instances | 1 |
| innodb_buffer_pool_size | 134217728 |
| innodb_change_buffering | all |
| innodb_checksums | ON |
| innodb_commit_concurrency | 0 |
| innodb_concurrency_tickets | 500 |
| innodb_data_file_path | ibdata1:10M:autoextend |
| innodb_data_home_dir | |
| innodb_doublewrite | ON |
| innodb_fast_shutdown | 1 |
| innodb_file_format | Antelope |
| innodb_file_format_check | ON |
| innodb_file_format_max | Antelope |
| innodb_file_per_table | OFF |
| innodb_flush_log_at_trx_commit | 1 |
| innodb_flush_method | |
| innodb_force_recovery | 0 |
| innodb_io_capacity | 200 |
| innodb_lock_wait_timeout | 50 |
| innodb_locks_unsafe_for_binlog | OFF |
| innodb_log_buffer_size | 8388608 |
| innodb_log_file_size | 5242880 |
| innodb_log_files_in_group | 2 |
| innodb_log_group_home_dir | ./ |
| innodb_max_dirty_pages_pct | 75 |
| innodb_max_purge_lag | 0 |
| innodb_mirrored_log_groups | 1 |
| innodb_old_blocks_pct | 37 |
| innodb_old_blocks_time | 0 |
| innodb_open_files | 300 |
| innodb_purge_batch_size | 20 |
| max_delayed_threads | 20 |
| max_error_count | 64 |
| max_heap_table_size | 16777216 |
| max_insert_delayed_threads | 20 |
| max_join_size | 18446744073709551615 |
| max_length_for_sort_data | 1024 |
| max_prepared_stmt_count | 16382 |
| max_relay_log_size | 0 |
| max_seeks_for_key | 18446744073709551615 |
| max_sort_length | 1024 |
| max_sp_recursion_depth | 0 |
| max_tmp_tables | 32 |
| max_user_connections | 0 |
| max_write_lock_count | 1 |
| min_examined_row_limit | 0 |
| multi_range_count | 256 |
| myisam_data_pointer_size | 6 |
| myisam_max_sort_file_size | 9223372036853727232 |
| myisam_mmap_size | 18446744073709551615 |
| myisam_recover_options | OFF |
| myisam_repair_threads | 1 |
| myisam_sort_buffer_size | 536870912 |
| myisam_stats_method | nulls_unequal |
| myisam_use_mmap | OFF |
| net_buffer_length | 16384 |
| net_read_timeout | 30 |
| net_retry_count | 10 |
| net_write_timeout | 60 |
| new | OFF |
| old | OFF |
| old_alter_table | OFF |
| old_passwords | ON |
| open_files_limit | 25000 |
| optimizer_prune_level | 1 |
| optimizer_search_depth | 62 |
| optimizer_switch | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on |
| performance_schema | OFF |
| performance_schema_events_waits_history_long_size | 10000 | |
| performance_schema_events_waits_history_size | 10 |
| performance_schema_max_cond_classes | 80 |
| performance_schema_max_cond_instances | 1000 |
| performance_schema_max_file_classes | 50 |
| performance_schema_max_file_handles | 32768 |
| performance_schema_max_file_instances | 10000 |
| performance_schema_max_mutex_classes | 200 |
| performance_schema_max_mutex_instances | 1000000 |
| performance_schema_max_rwlock_classes | 30 |
mysql> show global variables like '%innodb_buffer_pool_size%';
+-------------------------+-----------+
| Variable_name | Value |
+-------------------------+-----------+
| innodb_buffer_pool_size | 319815680 |
+-------------------------+-----------+
1 row in set (0.00 sec)mysql> show global variables like 'key_buffer_size%';
+-----------------+-----------+
| Variable_name | Value |
+-----------------+-----------+
| key_buffer_size | 164626432 |
+-----------------+-----------+
1 row in set (0.00 sec)这2个值值得关注
Key_buffer_size，如果是MYISAM表多，这个调大点
innodb_buffer_pool_size,如果是INNODB表多，这个调大点，到物理内存的60%-80%