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Re: Bad performance on MySQL 8.0 compared to 5.7
Posted by: Raphael Yeung
Date: August 25, 2022 01:22AM

[8.0] show global status;
Variable_name,Value
Aborted_clients,0
Aborted_connects,0
Acl_cache_items_count,0
Binlog_cache_disk_use,0
Binlog_cache_use,0
Binlog_stmt_cache_disk_use,0
Binlog_stmt_cache_use,0
Bytes_received,1991
Bytes_sent,39260
Caching_sha2_password_rsa_public_key,*** masked ***
Com_admin_commands,6
Com_assign_to_keycache,0
Com_alter_db,0
Com_alter_event,0
Com_alter_function,0
Com_alter_instance,0
Com_alter_procedure,0
Com_alter_resource_group,0
Com_alter_server,0
Com_alter_table,0
Com_alter_tablespace,0
Com_alter_user,0
Com_alter_user_default_role,0
Com_analyze,0
Com_begin,0
Com_binlog,0
Com_call_procedure,0
Com_change_db,1
Com_change_master,0
Com_change_repl_filter,0
Com_change_replication_source,0
Com_check,0
Com_checksum,0
Com_clone,0
Com_commit,0
Com_create_db,1
Com_create_event,0
Com_create_function,0
Com_create_index,0
Com_create_procedure,0
Com_create_role,0
Com_create_server,0
Com_create_table,35
Com_create_resource_group,0
Com_create_trigger,0
Com_create_udf,0
Com_create_user,0
Com_create_view,0
Com_create_spatial_reference_system,0
Com_dealloc_sql,0
Com_delete,0
Com_delete_multi,0
Com_do,0
Com_drop_db,0
Com_drop_event,0
Com_drop_function,0
Com_drop_index,0
Com_drop_procedure,0
Com_drop_resource_group,0
Com_drop_role,0
Com_drop_server,0
Com_drop_spatial_reference_system,0
Com_drop_table,0
Com_drop_trigger,0
Com_drop_user,0
Com_drop_view,0
Com_empty_query,0
Com_execute_sql,0
Com_explain_other,0
Com_flush,1
Com_get_diagnostics,0
Com_grant,0
Com_grant_roles,0
Com_ha_close,0
Com_ha_open,0
Com_ha_read,0
Com_help,0
Com_import,0
Com_insert,0
Com_insert_select,0
Com_install_component,0
Com_install_plugin,0
Com_kill,0
Com_load,0
Com_lock_instance,0
Com_lock_tables,0
Com_optimize,0
Com_preload_keys,0
Com_prepare_sql,0
Com_purge,0
Com_purge_before_date,0
Com_release_savepoint,0
Com_rename_table,0
Com_rename_user,0
Com_repair,0
Com_replace,0
Com_replace_select,0
Com_reset,0
Com_resignal,0
Com_restart,0
Com_revoke,0
Com_revoke_all,0
Com_revoke_roles,0
Com_rollback,0
Com_rollback_to_savepoint,0
Com_savepoint,0
Com_select,6
Com_set_option,5
Com_set_password,0
Com_set_resource_group,0
Com_set_role,0
Com_signal,0
Com_show_binlog_events,0
Com_show_binlogs,0
Com_show_charsets,0
Com_show_collations,0
Com_show_create_db,0
Com_show_create_event,0
Com_show_create_func,0
Com_show_create_proc,0
Com_show_create_table,0
Com_show_create_trigger,0
Com_show_databases,1
Com_show_engine_logs,0
Com_show_engine_mutex,0
Com_show_engine_status,0
Com_show_events,0
Com_show_errors,0
Com_show_fields,0
Com_show_function_code,0
Com_show_function_status,0
Com_show_grants,0
Com_show_keys,0
Com_show_master_status,0
Com_show_open_tables,0
Com_show_plugins,0
Com_show_privileges,0
Com_show_procedure_code,0
Com_show_procedure_status,0
Com_show_processlist,0
Com_show_profile,0
Com_show_profiles,0
Com_show_relaylog_events,0
Com_show_replicas,0
Com_show_slave_hosts,0
Com_show_replica_status,0
Com_show_slave_status,0
Com_show_status,3
Com_show_storage_engines,0
Com_show_table_status,0
Com_show_tables,0
Com_show_triggers,0
Com_show_variables,1
Com_show_warnings,0
Com_show_create_user,0
Com_shutdown,0
Com_replica_start,0
Com_slave_start,0
Com_replica_stop,0
Com_slave_stop,0
Com_group_replication_start,0
Com_group_replication_stop,0
Com_stmt_execute,0
Com_stmt_close,0
Com_stmt_fetch,0
Com_stmt_prepare,0
Com_stmt_reset,0
Com_stmt_send_long_data,0
Com_truncate,0
Com_uninstall_component,0
Com_uninstall_plugin,0
Com_unlock_instance,0
Com_unlock_tables,0
Com_update,0
Com_update_multi,0
Com_xa_commit,0
Com_xa_end,0
Com_xa_prepare,0
Com_xa_recover,0
Com_xa_rollback,0
Com_xa_start,0
Com_stmt_reprepare,0
Connection_errors_accept,0
Connection_errors_internal,0
Connection_errors_max_connections,0
Connection_errors_peer_address,0
Connection_errors_select,0
Connection_errors_tcpwrap,0
Connections,9
Created_tmp_disk_tables,0
Created_tmp_files,5
Created_tmp_tables,8
Current_tls_ca,*** masked ***
Current_tls_capath,
Current_tls_cert,*** masked ***
Current_tls_cipher,
Current_tls_ciphersuites,
Current_tls_crl,
Current_tls_crlpath,
Current_tls_key,*** masked ***
Current_tls_version,"TLSv1.2,TLSv1.3"
Delayed_errors,0
Delayed_insert_threads,0
Delayed_writes,0
Error_log_buffered_bytes,136136
Error_log_buffered_events,763
Error_log_expired_events,0
Error_log_latest_write,1660641696643442
Flush_commands,3
Global_connection_memory,0
Handler_commit,2687
Handler_delete,8
Handler_discover,0
Handler_external_lock,11109
Handler_mrr_init,0
Handler_prepare,0
Handler_read_first,46
Handler_read_key,4111
Handler_read_last,0
Handler_read_next,5883
Handler_read_prev,0
Handler_read_rnd,0
Handler_read_rnd_next,4194
Handler_rollback,1
Handler_savepoint,0
Handler_savepoint_rollback,0
Handler_update,332
Handler_write,1832
Innodb_buffer_pool_dump_status,Dumping of buffer pool not started
Innodb_buffer_pool_load_status,Buffer pool(s) load completed at 220816 9:21:36
Innodb_buffer_pool_resize_status,
Innodb_buffer_pool_pages_data,2104
Innodb_buffer_pool_bytes_data,34471936
Innodb_buffer_pool_pages_dirty,0
Innodb_buffer_pool_bytes_dirty,0
Innodb_buffer_pool_pages_flushed,527
Innodb_buffer_pool_pages_free,391071
Innodb_buffer_pool_pages_misc,41
Innodb_buffer_pool_pages_total,393216
Innodb_buffer_pool_read_ahead_rnd,0
Innodb_buffer_pool_read_ahead,0
Innodb_buffer_pool_read_ahead_evicted,0
Innodb_buffer_pool_read_requests,32717
Innodb_buffer_pool_reads,1954
Innodb_buffer_pool_wait_free,0
Innodb_buffer_pool_write_requests,5362
Innodb_data_fsyncs,843
Innodb_data_pending_fsyncs,0
Innodb_data_pending_reads,0
Innodb_data_pending_writes,0
Innodb_data_read,32066560
Innodb_data_reads,1975
Innodb_data_writes,1643
Innodb_data_written,9480704
Innodb_dblwr_pages_written,386
Innodb_dblwr_writes,43
Innodb_redo_log_read_only,OFF
Innodb_redo_log_uuid,1075899837
Innodb_redo_log_checkpoint_lsn,366533147299
Innodb_redo_log_current_lsn,366533147299
Innodb_redo_log_flushed_to_disk_lsn,366533147299
Innodb_redo_log_logical_size,512
Innodb_redo_log_physical_size,201326592
Innodb_redo_log_capacity_resized,6442450944
Innodb_redo_log_resize_status,OK
Innodb_log_waits,0
Innodb_log_write_requests,3574
Innodb_log_writes,1046
Innodb_os_log_fsyncs,696
Innodb_os_log_pending_fsyncs,0
Innodb_os_log_pending_writes,0
Innodb_os_log_written,653312
Innodb_page_size,16384
Innodb_pages_created,151
Innodb_pages_read,1953
Innodb_pages_written,527
Innodb_redo_log_enabled,ON
Innodb_row_lock_current_waits,0
Innodb_row_lock_time,0
Innodb_row_lock_time_avg,0
Innodb_row_lock_time_max,0
Innodb_row_lock_waits,0
Innodb_rows_deleted,0
Innodb_rows_inserted,0
Innodb_rows_read,0
Innodb_rows_updated,0
Innodb_system_rows_deleted,8
Innodb_system_rows_inserted,682
Innodb_system_rows_read,7984
Innodb_system_rows_updated,332
Innodb_sampled_pages_read,0
Innodb_sampled_pages_skipped,0
Innodb_num_open_files,15
Innodb_truncated_status_writes,0
Innodb_undo_tablespaces_total,2
Innodb_undo_tablespaces_implicit,2
Innodb_undo_tablespaces_explicit,0
Innodb_undo_tablespaces_active,2
Key_blocks_not_flushed,0
Key_blocks_unused,6698
Key_blocks_used,0
Key_read_requests,0
Key_reads,0
Key_write_requests,0
Key_writes,0
Locked_connects,0
Max_execution_time_exceeded,0
Max_execution_time_set,0
Max_execution_time_set_failed,0
Max_used_connections,2
Max_used_connections_time,2022-08-25 07:17:11
Mysqlx_aborted_clients,0
Mysqlx_address,::
Mysqlx_bytes_received,0
Mysqlx_bytes_received_compressed_payload,0
Mysqlx_bytes_received_uncompressed_frame,0
Mysqlx_bytes_sent,0
Mysqlx_bytes_sent_compressed_payload,0
Mysqlx_bytes_sent_uncompressed_frame,0
Mysqlx_compression_algorithm,
Mysqlx_compression_level,
Mysqlx_connection_accept_errors,0
Mysqlx_connection_errors,0
Mysqlx_connections_accepted,0
Mysqlx_connections_closed,0
Mysqlx_connections_rejected,0
Mysqlx_crud_create_view,0
Mysqlx_crud_delete,0
Mysqlx_crud_drop_view,0
Mysqlx_crud_find,0
Mysqlx_crud_insert,0
Mysqlx_crud_modify_view,0
Mysqlx_crud_update,0
Mysqlx_cursor_close,0
Mysqlx_cursor_fetch,0
Mysqlx_cursor_open,0
Mysqlx_errors_sent,0
Mysqlx_errors_unknown_message_type,0
Mysqlx_expect_close,0
Mysqlx_expect_open,0
Mysqlx_init_error,0
Mysqlx_messages_sent,0
Mysqlx_notice_global_sent,0
Mysqlx_notice_other_sent,0
Mysqlx_notice_warning_sent,0
Mysqlx_notified_by_group_replication,0
Mysqlx_port,33060
Mysqlx_prep_deallocate,0
Mysqlx_prep_execute,0
Mysqlx_prep_prepare,0
Mysqlx_rows_sent,0
Mysqlx_sessions,0
Mysqlx_sessions_accepted,0
Mysqlx_sessions_closed,0
Mysqlx_sessions_fatal_error,0
Mysqlx_sessions_killed,0
Mysqlx_sessions_rejected,0
Mysqlx_socket,/tmp/mysqlx.sock
Mysqlx_ssl_accepts,0
Mysqlx_ssl_active,
Mysqlx_ssl_cipher,
Mysqlx_ssl_cipher_list,
Mysqlx_ssl_ctx_verify_depth,0
Mysqlx_ssl_ctx_verify_mode,0
Mysqlx_ssl_finished_accepts,0
Mysqlx_ssl_server_not_after,
Mysqlx_ssl_server_not_before,
Mysqlx_ssl_verify_depth,
Mysqlx_ssl_verify_mode,
Mysqlx_ssl_version,
Mysqlx_stmt_create_collection,0
Mysqlx_stmt_create_collection_index,0
Mysqlx_stmt_disable_notices,0
Mysqlx_stmt_drop_collection,0
Mysqlx_stmt_drop_collection_index,0
Mysqlx_stmt_enable_notices,0
Mysqlx_stmt_ensure_collection,0
Mysqlx_stmt_execute_mysqlx,0
Mysqlx_stmt_execute_sql,0
Mysqlx_stmt_execute_xplugin,0
Mysqlx_stmt_get_collection_options,0
Mysqlx_stmt_kill_client,0
Mysqlx_stmt_list_clients,0
Mysqlx_stmt_list_notices,0
Mysqlx_stmt_list_objects,0
Mysqlx_stmt_modify_collection_options,0
Mysqlx_stmt_ping,0
Mysqlx_worker_threads,2
Mysqlx_worker_threads_active,0
Not_flushed_delayed_rows,0
Ongoing_anonymous_transaction_count,0
Open_files,9
Open_streams,0
Open_table_definitions,62
Open_tables,93
Opened_files,9
Opened_table_definitions,100
Opened_tables,174
Performance_schema_accounts_lost,0
Performance_schema_cond_classes_lost,0
Performance_schema_cond_instances_lost,0
Performance_schema_digest_lost,0
Performance_schema_file_classes_lost,0
Performance_schema_file_handles_lost,0
Performance_schema_file_instances_lost,0
Performance_schema_hosts_lost,0
Performance_schema_index_stat_lost,0
Performance_schema_locker_lost,0
Performance_schema_memory_classes_lost,0
Performance_schema_metadata_lock_lost,0
Performance_schema_mutex_classes_lost,0
Performance_schema_mutex_instances_lost,0
Performance_schema_nested_statement_lost,0
Performance_schema_prepared_statements_lost,0
Performance_schema_program_lost,0
Performance_schema_rwlock_classes_lost,0
Performance_schema_rwlock_instances_lost,0
Performance_schema_session_connect_attrs_longest_seen,0
Performance_schema_session_connect_attrs_lost,0
Performance_schema_socket_classes_lost,0
Performance_schema_socket_instances_lost,0
Performance_schema_stage_classes_lost,0
Performance_schema_statement_classes_lost,0
Performance_schema_table_handles_lost,0
Performance_schema_table_instances_lost,0
Performance_schema_table_lock_stat_lost,0
Performance_schema_thread_classes_lost,0
Performance_schema_thread_instances_lost,0
Performance_schema_users_lost,0
Prepared_stmt_count,0
Queries,19
Questions,12
Replica_open_temp_tables,0
Rsa_public_key,*** masked ***
Secondary_engine_execution_count,0
Select_full_join,2
Select_full_range_join,0
Select_range,0
Select_range_check,0
Select_scan,13
Slave_open_temp_tables,0
Slow_launch_threads,0
Slow_queries,0
Sort_merge_passes,0
Sort_range,0
Sort_rows,690
Sort_scan,4
Ssl_accept_renegotiates,0
Ssl_accepts,0
Ssl_callback_cache_hits,0
Ssl_cipher,
Ssl_cipher_list,
Ssl_client_connects,0
Ssl_connect_renegotiates,0
Ssl_ctx_verify_depth,0
Ssl_ctx_verify_mode,0
Ssl_default_timeout,0
Ssl_finished_accepts,0
Ssl_finished_connects,0
Ssl_server_not_after,
Ssl_server_not_before,
Ssl_session_cache_hits,0
Ssl_session_cache_misses,0
Ssl_session_cache_mode,NONE
Ssl_session_cache_overflows,0
Ssl_session_cache_size,0
Ssl_session_cache_timeout,0
Ssl_session_cache_timeouts,0
Ssl_sessions_reused,0
Ssl_used_session_cache_entries,0
Ssl_verify_depth,0
Ssl_verify_mode,0
Ssl_version,
Table_locks_immediate,8
Table_locks_waited,0
Table_open_cache_hits,5385
Table_open_cache_misses,174
Table_open_cache_overflows,0
Tc_log_max_pages_used,0
Tc_log_page_size,0
Tc_log_page_waits,0
Threads_cached,0
Threads_connected,2
Threads_created,2
Threads_running,2
Tls_library_version,OpenSSL 1.1.1f 31 Mar 2020
Uptime,770148
Uptime_since_flush_status,770148

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Re: Bad performance on MySQL 8.0 compared to 5.7
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August 25, 2022 01:22AM


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