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Re: Bad performance on MySQL 8.0 compared to 5.7
Posted by: Raphael Yeung
Date: August 15, 2022 08:04PM

## variables on 5.7 ##

Variable_name,Value
auto_generate_certs,ON
auto_increment_increment,1
auto_increment_offset,1
autocommit,ON
automatic_sp_privileges,ON
avoid_temporal_upgrade,OFF
back_log,140
basedir,/usr/local/mysql/
big_tables,OFF
bind_address,*
binlog_cache_size,32768
binlog_checksum,CRC32
binlog_direct_non_transactional_updates,OFF
binlog_error_action,ABORT_SERVER
binlog_format,MIXED
binlog_group_commit_sync_delay,0
binlog_group_commit_sync_no_delay_count,0
binlog_gtid_simple_recovery,ON
binlog_max_flush_queue_time,0
binlog_order_commits,ON
binlog_row_image,FULL
binlog_rows_query_log_events,OFF
binlog_stmt_cache_size,32768
binlog_transaction_dependency_history_size,25000
binlog_transaction_dependency_tracking,COMMIT_ORDER
block_encryption_mode,aes-128-ecb
bulk_insert_buffer_size,8388608
character_set_client,utf8mb4
character_set_connection,utf8mb4
character_set_database,utf8mb4
character_set_filesystem,binary
character_set_results,utf8mb4
character_set_server,utf8mb4
character_set_system,utf8
character_sets_dir,/usr/local/mysql/share/charsets/
check_proxy_users,OFF
collation_connection,utf8mb4_general_ci
collation_database,utf8mb4_general_ci
collation_server,utf8mb4_general_ci
completion_type,NO_CHAIN
concurrent_insert,AUTO
connect_timeout,10
core_file,OFF
datadir,*** masked ***
date_format,%Y-%m-%d
datetime_format,%Y-%m-%d %H:%i:%s
default_authentication_plugin,mysql_native_password
default_password_lifetime,0
default_storage_engine,InnoDB
default_tmp_storage_engine,InnoDB
default_week_format,0
delay_key_write,ON
delayed_insert_limit,100
delayed_insert_timeout,300
delayed_queue_size,1000
disabled_storage_engines,
disconnect_on_expired_password,ON
div_precision_increment,4
end_markers_in_json,OFF
enforce_gtid_consistency,OFF
eq_range_index_dive_limit,200
error_count,0
event_scheduler,OFF
expire_logs_days,7
explicit_defaults_for_timestamp,OFF
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
general_log_file,/var/log/mysql/query.log
group_concat_max_len,1024
gtid_executed_compression_period,1000
gtid_mode,OFF
gtid_next,AUTOMATIC
gtid_owned,
gtid_purged,
have_compress,YES
have_crypt,YES
have_dynamic_loading,YES
have_geometry,YES
have_openssl,DISABLED
have_profiling,YES
have_query_cache,YES
have_rtree_keys,YES
have_ssl,DISABLED
have_statement_timeout,YES
have_symlink,YES
host_cache_size,578
hostname,stg-mysql-benchmark-4
identity,0
ignore_builtin_innodb,OFF
ignore_db_dirs,
init_connect,
init_file,
init_slave,
innodb_adaptive_flushing,ON
innodb_adaptive_flushing_lwm,10
innodb_adaptive_hash_index,ON
innodb_adaptive_hash_index_parts,8
innodb_adaptive_max_sleep_delay,150000
innodb_api_bk_commit_interval,5
innodb_api_disable_rowlock,OFF
innodb_api_enable_binlog,OFF
innodb_api_enable_mdl,OFF
innodb_api_trx_level,0
innodb_autoextend_increment,64
innodb_autoinc_lock_mode,1
innodb_buffer_pool_chunk_size,134217728
innodb_buffer_pool_dump_at_shutdown,ON
innodb_buffer_pool_dump_now,OFF
innodb_buffer_pool_dump_pct,25
innodb_buffer_pool_filename,ib_buffer_pool
innodb_buffer_pool_instances,1
innodb_buffer_pool_load_abort,OFF
innodb_buffer_pool_load_at_startup,ON
innodb_buffer_pool_load_now,OFF
innodb_buffer_pool_size,134217728
innodb_change_buffer_max_size,25
innodb_change_buffering,all
innodb_checksum_algorithm,crc32
innodb_checksums,ON
innodb_cmp_per_index_enabled,OFF
innodb_commit_concurrency,0
innodb_compression_failure_threshold_pct,5
innodb_compression_level,6
innodb_compression_pad_pct_max,50
innodb_concurrency_tickets,5000
innodb_data_file_path,ibdata1:12M:autoextend
innodb_data_home_dir,
innodb_deadlock_detect,ON
innodb_default_row_format,dynamic
innodb_disable_sort_file_cache,OFF
innodb_doublewrite,ON
innodb_fast_shutdown,1
innodb_file_format,Barracuda
innodb_file_format_check,ON
innodb_file_format_max,Barracuda
innodb_file_per_table,ON
innodb_fill_factor,100
innodb_flush_log_at_timeout,1
innodb_flush_log_at_trx_commit,1
innodb_flush_method,
innodb_flush_neighbors,1
innodb_flush_sync,ON
innodb_flushing_avg_loops,30
innodb_force_load_corrupted,OFF
innodb_force_recovery,0
innodb_ft_aux_table,
innodb_ft_cache_size,8000000
innodb_ft_enable_diag_print,OFF
innodb_ft_enable_stopword,ON
innodb_ft_max_token_size,84
innodb_ft_min_token_size,3
innodb_ft_num_word_optimize,2000
innodb_ft_result_cache_limit,2000000000
innodb_ft_server_stopword_table,
innodb_ft_sort_pll_degree,2
innodb_ft_total_cache_size,640000000
innodb_ft_user_stopword_table,
innodb_io_capacity,200
innodb_io_capacity_max,2000
innodb_large_prefix,ON
innodb_lock_wait_timeout,50
innodb_locks_unsafe_for_binlog,OFF
innodb_log_buffer_size,16777216
innodb_log_checksums,ON
innodb_log_compressed_pages,ON
innodb_log_file_size,50331648
innodb_log_files_in_group,2
innodb_log_group_home_dir,./
innodb_log_write_ahead_size,8192
innodb_lru_scan_depth,1024
innodb_max_dirty_pages_pct,75.000000
innodb_max_dirty_pages_pct_lwm,0.000000
innodb_max_purge_lag,0
innodb_max_purge_lag_delay,0
innodb_max_undo_log_size,1073741824
innodb_monitor_disable,
innodb_monitor_enable,
innodb_monitor_reset,
innodb_monitor_reset_all,
innodb_old_blocks_pct,37
innodb_old_blocks_time,1000
innodb_online_alter_log_max_size,134217728
innodb_open_files,2000
innodb_optimize_fulltext_only,OFF
innodb_page_cleaners,1
innodb_page_size,16384
innodb_print_all_deadlocks,OFF
innodb_purge_batch_size,300
innodb_purge_rseg_truncate_frequency,128
innodb_purge_threads,4
innodb_random_read_ahead,OFF
innodb_read_ahead_threshold,56
innodb_read_io_threads,4
innodb_read_only,OFF
innodb_replication_delay,0
innodb_rollback_on_timeout,OFF
innodb_rollback_segments,128
innodb_sort_buffer_size,1048576
innodb_spin_wait_delay,6
innodb_stats_auto_recalc,ON
innodb_stats_include_delete_marked,OFF
innodb_stats_method,nulls_equal
innodb_stats_on_metadata,OFF
innodb_stats_persistent,ON
innodb_stats_persistent_sample_pages,20
innodb_stats_sample_pages,8
innodb_stats_transient_sample_pages,8
innodb_status_output,OFF
innodb_status_output_locks,OFF
innodb_strict_mode,ON
innodb_support_xa,ON
innodb_sync_array_size,1
innodb_sync_spin_loops,30
innodb_table_locks,ON
innodb_temp_data_file_path,ibtmp1:12M:autoextend
innodb_thread_concurrency,0
innodb_thread_sleep_delay,10000
innodb_tmpdir,
innodb_undo_directory,./
innodb_undo_log_truncate,OFF
innodb_undo_logs,128
innodb_undo_tablespaces,0
innodb_use_native_aio,ON
innodb_version,5.7.36
innodb_write_io_threads,4
insert_id,0
interactive_timeout,28800
internal_tmp_disk_storage_engine,InnoDB
join_buffer_size,262144
keep_files_on_create,OFF
key_buffer_size,8388608
key_cache_age_threshold,300
key_cache_block_size,1024
key_cache_division_limit,100
keyring_operations,ON
large_files_support,ON
large_page_size,0
large_pages,OFF
last_insert_id,0
lc_messages,en_US
lc_messages_dir,/usr/local/mysql/share/
lc_time_names,en_US
license,GPL
local_infile,ON
lock_wait_timeout,31536000
locked_in_memory,OFF
log_bin,ON
log_bin_basename,*** masked ***/log-bin/mysql-bin
log_bin_index,*** masked ***/log-bin/mysql-bin.index
log_bin_trust_function_creators,OFF
log_bin_use_v1_row_events,OFF
log_builtin_as_identified_by_password,OFF
log_error,*** masked ***/mysql-log/mysqld.log
log_error_verbosity,3
log_output,FILE
log_queries_not_using_indexes,OFF
log_slave_updates,OFF
log_slow_admin_statements,OFF
log_slow_slave_statements,OFF
log_statements_unsafe_for_binlog,ON
log_syslog,OFF
log_syslog_facility,daemon
log_syslog_include_pid,ON
log_syslog_tag,
log_throttle_queries_not_using_indexes,0
log_timestamps,UTC
log_warnings,2
long_query_time,10.000000
low_priority_updates,OFF
lower_case_file_system,OFF
lower_case_table_names,0
master_info_repository,FILE
master_verify_checksum,OFF
max_allowed_packet,1073741824
max_binlog_cache_size,18446744073709547520
max_binlog_size,1073741824
max_binlog_stmt_cache_size,18446744073709547520
max_connect_errors,100
max_connections,450
max_delayed_threads,20
max_digest_length,1024
max_error_count,64
max_execution_time,0
max_heap_table_size,16777216
max_insert_delayed_threads,20
max_join_size,18446744073709551615
max_length_for_sort_data,1024
max_points_in_geometry,65536
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,18446744073709551615
metadata_locks_cache_size,1024
metadata_locks_hash_instances,8
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,8388608
myisam_stats_method,nulls_unequal
myisam_use_mmap,OFF
mysql_native_password_proxy_users,OFF
net_buffer_length,16384
net_read_timeout,30
net_retry_count,10
net_write_timeout,60
new,OFF
ngram_token_size,2
offline_mode,OFF
old,OFF
old_alter_table,OFF
old_passwords,0
open_files_limit,5000
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,index_condition_pushdown=on,mrr=on,mrr_cost_based=on,block_nested_loop=on,batched_key_access=off,materialization=on,semijoin=on,loosescan=on,firstmatch=on,duplicateweedout=on,subquery_materialization_cost_based=on,use_index_extensions=on,condition_fanout_filter=on,derived_merge=on,prefer_ordering_index=on"
optimizer_trace,"enabled=off,one_line=off"
optimizer_trace_features,"greedy_search=on,range_optimizer=on,dynamic_range=on,repeated_subselect=on"
optimizer_trace_limit,1
optimizer_trace_max_mem_size,16384
optimizer_trace_offset,-1
parser_max_mem_size,18446744073709551615
performance_schema,ON
performance_schema_accounts_size,-1
performance_schema_digests_size,10000
performance_schema_events_stages_history_long_size,10000
performance_schema_events_stages_history_size,10
performance_schema_events_statements_history_long_size,10000
performance_schema_events_statements_history_size,10
performance_schema_events_transactions_history_long_size,10000
performance_schema_events_transactions_history_size,10
performance_schema_events_waits_history_long_size,10000
performance_schema_events_waits_history_size,10
performance_schema_hosts_size,-1
performance_schema_max_cond_classes,80
performance_schema_max_cond_instances,-1
performance_schema_max_digest_length,1024
performance_schema_max_file_classes,80
performance_schema_max_file_handles,32768
performance_schema_max_file_instances,-1
performance_schema_max_index_stat,-1
performance_schema_max_memory_classes,320
performance_schema_max_metadata_locks,-1
performance_schema_max_mutex_classes,210
performance_schema_max_mutex_instances,-1
performance_schema_max_prepared_statements_instances,-1
performance_schema_max_program_instances,-1
performance_schema_max_rwlock_classes,50
performance_schema_max_rwlock_instances,-1
performance_schema_max_socket_classes,10
performance_schema_max_socket_instances,-1
performance_schema_max_sql_text_length,1024
performance_schema_max_stage_classes,150
performance_schema_max_statement_classes,193
performance_schema_max_statement_stack,10
performance_schema_max_table_handles,-1
performance_schema_max_table_instances,-1
performance_schema_max_table_lock_stat,-1
performance_schema_max_thread_classes,50
performance_schema_max_thread_instances,-1
performance_schema_session_connect_attrs_size,512
performance_schema_setup_actors_size,-1
performance_schema_setup_objects_size,-1
performance_schema_users_size,-1
pid_file,*** masked ***/stg-mysql-benchmark-4.pid
plugin_dir,/usr/local/mysql/lib/plugin/
port,3306
preload_buffer_size,32768
profiling,OFF
profiling_history_size,15
protocol_version,10
proxy_user,
pseudo_slave_mode,OFF
pseudo_thread_id,5
query_alloc_block_size,8192
query_cache_limit,1048576
query_cache_min_res_unit,4096
query_cache_size,1048576
query_cache_type,OFF
query_cache_wlock_invalidate,OFF
query_prealloc_size,8192
rand_seed1,0
rand_seed2,0
range_alloc_block_size,4096
range_optimizer_max_mem_size,8388608
rbr_exec_mode,STRICT
read_buffer_size,131072
read_only,OFF
read_rnd_buffer_size,262144
relay_log,
relay_log_basename,*** masked ***/***-relay-bin
relay_log_index,*** masked ***/***-relay-bin.index
relay_log_info_file,relay-log.info
relay_log_info_repository,FILE
relay_log_purge,ON
relay_log_recovery,OFF
relay_log_space_limit,0
replication_optimize_for_static_plugin_config,OFF
replication_sender_observe_commit_only,OFF
report_host,
report_password,
report_port,3306
report_user,
require_secure_transport,OFF
rpl_stop_slave_timeout,31536000
secure_auth,ON
secure_file_priv,NULL
server_id,102
server_id_bits,32
server_uuid,0065f82b-51a1-11ec-bd7d-000d3acf3b83
session_track_gtids,OFF
session_track_schema,ON
session_track_state_change,OFF
session_track_system_variables,"time_zone,autocommit,character_set_client,character_set_results,character_set_connection"
session_track_transaction_info,OFF
sha256_password_auto_generate_rsa_keys,ON
sha256_password_private_key_path,private_key.pem
sha256_password_proxy_users,OFF
sha256_password_public_key_path,public_key.pem
show_compatibility_56,OFF
show_create_table_verbosity,OFF
show_old_temporals,OFF
skip_external_locking,ON
skip_name_resolve,OFF
skip_networking,OFF
skip_show_database,OFF
slave_allow_batching,OFF
slave_checkpoint_group,512
slave_checkpoint_period,300
slave_compressed_protocol,OFF
slave_exec_mode,STRICT
slave_load_tmpdir,/tmp
slave_max_allowed_packet,1073741824
slave_net_timeout,60
slave_parallel_type,DATABASE
slave_parallel_workers,0
slave_pending_jobs_size_max,16777216
slave_preserve_commit_order,OFF
slave_rows_search_algorithms,"TABLE_SCAN,INDEX_SCAN"
slave_skip_errors,"1032,1050,1062,1396"
slave_sql_verify_checksum,ON
slave_transaction_retries,10
slave_type_conversions,
slow_launch_time,2
slow_query_log,OFF
slow_query_log_file,*** masked ***/***-slow.log
socket,/tmp/mysql.sock
sort_buffer_size,262144
sql_auto_is_null,OFF
sql_big_selects,ON
sql_buffer_result,OFF
sql_log_bin,ON
sql_log_off,OFF
sql_mode,
sql_notes,ON
sql_quote_show_create,ON
sql_safe_updates,OFF
sql_select_limit,18446744073709551615
sql_slave_skip_counter,0
sql_warnings,OFF
ssl_ca,*** masked ***.cer
ssl_capath,
ssl_cert,*** masked ***.cer
ssl_cipher,
ssl_crl,
ssl_crlpath,
ssl_key,*** masked ***.key
stored_program_cache,256
super_read_only,OFF
sync_binlog,1
sync_frm,ON
sync_master_info,10000
sync_relay_log,10000
sync_relay_log_info,10000
system_time_zone,UTC
table_definition_cache,1400
table_open_cache,2000
table_open_cache_instances,16
thread_cache_size,12
thread_handling,one-thread-per-connection
thread_stack,262144
time_format,%H:%i:%s
time_zone,SYSTEM
timestamp,1660615165.826970
tls_version,"TLSv1,TLSv1.1,TLSv1.2"
tmp_table_size,16777216
tmpdir,/tmp
transaction_alloc_block_size,8192
transaction_allow_batching,OFF
transaction_isolation,REPEATABLE-READ
transaction_prealloc_size,4096
transaction_read_only,OFF
transaction_write_set_extraction,OFF
tx_isolation,REPEATABLE-READ
tx_read_only,OFF
unique_checks,ON
updatable_views_with_limit,YES
version,5.7.36-log
version_comment,MySQL Community Server (GPL)
version_compile_machine,x86_64
version_compile_os,Linux
wait_timeout,28800
warning_count,0

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Re: Bad performance on MySQL 8.0 compared to 5.7
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August 15, 2022 08:04PM


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