GreatSQL vs MySQL性能测试来了，速围观~

• GreatSQL社区原创内容未经授权不得随意使用，转载请联系小编并注明来源。
• GreatSQL是MySQL的国产分支版本，使用上与MySQL一致。

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1.结论先行

1. 无论ibp（innodb_buffer_pool_size）是否充足，MySQL的性能都远不如GreatSQL。

2. MySQL的性能平均约为GreatSQL的70%（最高84.5%，最低61.7%）。

3. 在ibp充分的情况下，随着并发数的增加，MySQL并没有表现出该有的性能提升，反倒掉头向下，可见还是不够稳定。

4. 在ibp不够的情况下，GreatSQL开启thread pool性能有所提升；当ibp充足的情况下，区别就不大了。

MySQL vs GreatSQL性能数据对比

	48G	96G	144G	192G	avg
MySQL vs GreatSQL	0.6173	0.735	0.721	0.8449	0.7295

各数据库版本分别为

• MySQL 8.0.30 MySQL Community Server - GPL

• GreatSQL 8.0.25-16 GreatSQL, Release 16, Revision 8bb0e5af297

2.测试结果数据

2.1 ibp=48G

TPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	969.16	1324.21	1661.57	2007.98	2331.4
GreatSQL	873.06	1146.85	1371.34	1509.8	1699.19
MySQL	686.14	846.5	915.15	1073.95	1439.29

P.S，后缀加上 thdpool 表示启用了thread pool。

QPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	19383.2	26484.14	33231.49	40159.56	46627.89
GreatSQL	17461.16	22937.14	27426.87	30196.02	33983.78
MySQL	13722.8	16929.94	18303.03	21479	28785.7

2.2 ibp=96G

TPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	1074.57	1407.54	1706.35	2206.06	2810.39
GreatSQL	1013.2	1198.5	1546.53	2033.04	2419.47
MySQL	751.7	986.11	1218.87	1778.67	2065.69

QPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	21491.46	28150.73	34127	44121.2	56207.88
GreatSQL	20264.04	23969.97	30930.56	40660.83	48389.42
MySQL	15034.11	19722.27	24377.47	35573.39	41313.8

2.3 ibp=144G

TPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	1059.46	1422.72	1853.24	2710.31	3481.66
GreatSQL	857.28	1327.67	1767.78	2660.8	3148.06
MySQL	857.05	1149.79	2038.3	2516.41	2510.15

QPS	8th	16th	32th	64th	128th
GreatSQL-thdpool	21189.17	28454.3	37064.79	54206.13	69633.25
GreatSQL	17145.52	26553.48	35355.47	53215.89	62961.17
MySQL	17140.96	22995.73	40765.95	50328.29	50202.93

2.4 ibp=192G

TPS	8th	16th	32th	64th	128th
GreatSQL	1406.86	1316.02	2144.17	4114.55	3310.67
GreatSQL-thdpool	1391.2	1247.93	2085.81	4053.76	3113.97
MySQL	1367.31	2629.75	2940.51	2687.48	2797.06

QPS	8th	16th	32th	64th	128th
GreatSQL	28137.19	26320.43	42883.45	82291	66213.47
GreatSQL-thdpool	27823.9	24958.68	41716.16	81075.21	62279.48
MySQL	27346.18	52595.01	58810.18	53749.63	55941.29

2.5 GreatSQL不同ibp下的数据

GreatSQL
TPS	8th	16th	32th	64th	128th		QPS	8th	16th	32th	64th	128th
GreatSQL-thdpool(48G)	969.16	1324.21	1661.57	2007.98	2331.4		GreatSQL-thdpool(48G)	19383.2	26484.14	33231.49	40159.56	46627.89
GreatSQL(48G)	873.06	1146.85	1371.34	1509.8	1699.19		GreatSQL(48G)	17461.16	22937.14	27426.87	30196.02	33983.78
GreatSQL-thdpool(96G)	1074.57	1407.54	1706.35	2206.06	2810.39		GreatSQL-thdpool(96G)	21491.46	28150.73	34127	44121.2	56207.88
GreatSQL(96G)	1013.2	1198.5	1546.53	2033.04	2419.47		GreatSQL(96G)	20264.04	23969.97	30930.56	40660.83	48389.42
GreatSQL-thdpool(144G)	1059.46	1422.72	1853.24	2710.31	3481.66		GreatSQL-thdpool(144G)	21189.17	28454.3	37064.79	54206.13	69633.25
GreatSQL(144G)	857.28	1327.67	1767.78	2660.8	3148.06		GreatSQL(144G)	17145.52	26553.48	35355.47	53215.89	62961.17
GreatSQL(192G)	1406.86	1316.02	2144.17	4114.55	3310.67		GreatSQL(192G)	28137.19	26320.43	42883.45	82291	66213.47
GreatSQL-thdpool(192G)	1391.2	1247.93	2085.81	4053.76	3113.97		GreatSQL-thdpool(192G)	27823.9	24958.68	41716.16	81075.21	62279.48

2.6 MySQL不同ibp下的数据

MySQL
TPS	8th	16th	32th	64th	128th		QPS	8th	16th	32th	64th	128th
MySQL(48G)	686.14	846.5	915.15	1073.95	1439.29		MySQL(48G)	13722.8	16929.94	18303.03	21479	28785.7
MySQL(96G)	751.7	986.11	1218.87	1778.67	2065.69		MySQL(96G)	15034.11	19722.27	24377.47	35573.39	41313.8
MySQL(144G)	857.05	1149.79	2038.3	2516.41	2510.15		MySQL(144G)	17140.96	22995.73	40765.95	50328.29	50202.93
MySQL(192G)	1367.31	2629.75	2940.51	2687.48	2797.06		MySQL(192G)	27346.18	52595.01	58810.18	53749.63	55941.29

测试环境&测试模式

3.1 测试工具

sysbench

/usr/local/bin/sysbench --version sysbench 1.1.0 

P.S，该版本是楼方鑫修改后的，增加了99.9%的RT统计值，例如：

[ 1s ] thds: 128 tps: 10285.06 qps: 208112.71 (r/w/o: 145769.21/41646.36/20697.15) lat (ms,99%,99%,99.9%): 24.83/24.83/28.67 err/s: 0.00 reconn/s: 0.00 [ 2s ] thds: 128 tps: 9968.88 qps: 199013.18 (r/w/o: 139399.13/39676.28/19937.76) lat (ms,99%,99%,99.9%): 20.00/20.00/24.38 err/s: 0.00 reconn/s: 0.00 [ 3s ] thds: 128 tps: 10214.11 qps: 204613.28 (r/w/o: 143162.59/41022.47/20428.22) lat (ms,99%,99%,99.9%): 19.29/19.29/23.10 err/s: 0.00 reconn/s: 0.00 [ 4s ] thds: 128 tps: 10227.68 qps: 204402.77 (r/w/o: 143127.62/40819.79/20455.37) lat (ms,99%,99%,99.9%): 17.95/17.95/20.00 err/s: 0.00 reconn/s: 0.00 [ 5s ] thds: 128 tps: 10466.08 qps: 209233.51 (r/w/o: 146497.06/41804.30/20932.15) lat (ms,99%,99%,99.9%): 19.29/19.29/21.11 err/s: 0.00 reconn/s: 0.00 

3.2 测试模式

• 利用sysbench生成64个表，每个表1250万条记录。
• 数据库总大小约191G。
• sysbench采用 oltp_read_write 模式。
• innodb_flush_method = O_DIRECT_NO_FSYNC。
• GreatSQL在需要时才开启thread pool，MySQL不支持thread pool。
• 默认关闭InnoDB PQ。
• 因为没有额外测试机，所以采用本地socket方式连接，顺便关闭网络监听设置。
• 测试资源有限，所以只测试单机模式，没有开启MGR。

3.3 测试机硬件配置

• 最大物理内存：376G，但数据库分配IBP时分别为48G、96G、144G、192G，没有将物理内存全部耗尽。
• 磁盘：Dell NVMe SSD

$ nvme list | grep nvme1 /dev/nvme1n1          90L0A019TAHR         Dell Express Flash CD5 3.84T SFF         1      2.86  TB /   3.84  TB    512   B +  0 B   1.1.1 

• 文件系统、ioscheduler

$ df -hT | grep nvme1 /dev/nvme1n1p1 xfs       3.5T  2.9T  706G  81% /data_nvme1n1p1  $ cat /sys/block/nvme1n1/queue/scheduler [none] mq-deadline kyber bfq 

• CPU

Architecture:        x86_64 CPU op-mode(s):      32-bit, 64-bit Byte Order:          Little Endian CPU(s):              176 On-line CPU(s) list: 0-175 Thread(s) per core:  2 Core(s) per socket:  22 Socket(s):           4 NUMA node(s):        4 Vendor ID:           GenuineIntel BIOS Vendor ID:      Intel CPU family:          6 Model:               85 Model name:          Intel(R) Xeon(R) Gold 6238 CPU @ 2.10GHz BIOS Model name:     Intel(R) Xeon(R) Gold 6238 CPU @ 2.10GHz Stepping:            7 CPU MHz:             2800.924 CPU max MHz:         3700.0000 CPU min MHz:         1000.0000 BogoMIPS:            4200.00 L1d cache:           32K L1i cache:           32K L2 cache:            1024K L3 cache:            30976K NUMA node0 CPU(s):   0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172 NUMA node1 CPU(s):   1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,129,133,137,141,145,149,153,157,161,165,169,173 NUMA node2 CPU(s):   2,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,66,70,74,78,82,86,90,94,98,102,106,110,114,118,122,126,130,134,138,142,146,150,154,158,162,166,170,174 NUMA node3 CPU(s):   3,7,11,15,19,23,27,31,35,39,43,47,51,55,59,63,67,71,75,79,83,87,91,95,99,103,107,111,115,119,123,127,131,135,139,143,147,151,155,159,163,167,171,175 Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single intel_ppin ssbd mba ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke avx512_vnni md_clear flush_l1d arch_capabilities 

3.4 数据库配置选项参数

[mysqld] skip-networking lower_case_table_names = 1 character-set-server = UTF8MB4 skip_name_resolve = 1 default_time_zone = "+8:00"  #performance setttings lock_wait_timeout = 3600 open_files_limit    = 65535 back_log = 1024 max_connections = 1024 max_connect_errors = 1000000 table_open_cache = 1024 table_definition_cache = 1024 thread_stack = 512K sort_buffer_size = 4M join_buffer_size = 4M read_buffer_size = 8M read_rnd_buffer_size = 4M bulk_insert_buffer_size = 64M thread_cache_size = 768 interactive_timeout = 600 wait_timeout = 600 tmp_table_size = 32M max_heap_table_size = 32M  #log settings log_timestamps = SYSTEM log_error = error.log log_error_verbosity = 3 slow_query_log = 1 log_slow_extra = 1 #log_slow_verbosity = FULL slow_query_log_file = slow.log long_query_time = 0.01 log_queries_not_using_indexes = 1 log_throttle_queries_not_using_indexes = 60 min_examined_row_limit = 0 log_slow_admin_statements = 1 log_slow_slave_statements = 1 log_bin = binlog  binlog_format = ROW sync_binlog = 1 binlog_cache_size = 4M max_binlog_cache_size = 2G max_binlog_size = 1G binlog_rows_query_log_events = 1 binlog_expire_logs_seconds = 604800 #binlog_expire_logs_auto_purge = 1 binlog_checksum = CRC32 gtid_mode = ON enforce_gtid_consistency = TRUE  #myisam settings key_buffer_size = 32M myisam_sort_buffer_size = 128M  #replication settings #master_info_repository = TABLE #relay_log_info_repository = TABLE relay_log_recovery = 1 slave_parallel_type = LOGICAL_CLOCK slave_parallel_workers = 2 binlog_transaction_dependency_tracking = WRITESET slave_preserve_commit_order = 1 slave_checkpoint_period = 2  #innodb settings transaction_isolation = REPEATABLE-READ innodb_buffer_pool_size = 2G innodb_buffer_pool_instances = 8 innodb_data_file_path = ibdata1:12M:autoextend innodb_flush_log_at_trx_commit = 1 innodb_log_buffer_size = 32M innodb_log_file_size = 2G innodb_log_files_in_group = 3 innodb_doublewrite_files = 2 innodb_max_undo_log_size = 4G innodb_io_capacity = 400000 innodb_io_capacity_max = 800000 innodb_open_files = 65534 #本次测试采用O_DIRECT_NO_FSYNC模式 innodb_flush_method = O_DIRECT_NO_FSYNC innodb_lru_scan_depth = 4000 innodb_lock_wait_timeout = 10 innodb_rollback_on_timeout = 1 innodb_print_all_deadlocks = 1 innodb_online_alter_log_max_size = 4G innodb_print_ddl_logs = 0 innodb_status_file = 1 innodb_status_output = 0 innodb_status_output_locks = 1 innodb_sort_buffer_size = 67108864 #innodb_thread_concurrency = 176 #innodb_spin_wait_delay = 3 #innodb_sync_spin_loops = 10  #innodb monitor settings innodb_monitor_enable = "module_innodb" innodb_monitor_enable = "module_server" innodb_monitor_enable = "module_dml" innodb_monitor_enable = "module_ddl" innodb_monitor_enable = "module_trx" innodb_monitor_enable = "module_os" innodb_monitor_enable = "module_purge" innodb_monitor_enable = "module_log" innodb_monitor_enable = "module_lock" innodb_monitor_enable = "module_buffer" innodb_monitor_enable = "module_index" innodb_monitor_enable = "module_ibuf_system" innodb_monitor_enable = "module_buffer_page" innodb_monitor_enable = "module_adaptive_hash"  #pfs settings performance_schema = 1 #performance_schema_instrument = '%memory%=on' performance_schema_instrument = '%lock%=on'  #thread pool，需要开启thread pool时才取消下面两行注释 #thread_handling = 'pool-of-thread' #thread_pool_stall_limit = 50