内容摘要：1.结论先行无论ibpinnodb_buffer_pool_size）是否充足，MySQL的性能都远不如GreatSQL。MySQL的性能平均约为GreatSQL的70%最高84.5%，最低61.7%

1.结论先行

无论ibp（innodb_buffer_pool_size）是试学否充足，MySQL的试学性能都远不如GreatSQL。MySQL的试学性能平均约为GreatSQL的70%（最高84.5%，最低61.7%）。试学在ibp充分的试学情况下，随着并发数的试学增加，MySQL并没有表现出该有的试学性能提升，反倒掉头向下，试学可见还是试学不够稳定。在ibp不够的试学情况下，云服务器提供商GreatSQL开启thread pool性能有所提升；当ibp充足的试学情况下，区别就不大了。试学

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,试学 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。试学

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下的试学数据

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

复制/usr/local/bin/sysbench --versionsysbench 1.1.01.2.

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：

复制[ 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: 0.001.2.3.4.5. 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。IT技术网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 复制$ nvme list |

grep nvme1

/dev/nvme1n1 90

L0A019TAHR

Dell Express Flash CD5 3.84T SFF 12.86 TB / 3.84 TB 512 B + 0 B 1.1.11.2.3.4. 文件系统、ioscheduler 复制$ 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 bfq1.2.3.4.5. CPU 复制Architecture:

x86_64

CPU op-mode(s): 32-bit, 64-bitByte Order:

Little Endian

CPU(s): 176On-line CPU(s) list: 0-175Thread(s) per core: 2Core(s) per socket: 22Socket(s): 4NUMA node(s): 4Vendor ID:

GenuineIntel

BIOS Vendor ID:

Intel

CPU family: 6Model: 85Model name: Intel(R) Xeon(R) Gold 6238 CPU @ 2.10

GHz

BIOS Model name: Intel(R) Xeon(R) Gold 6238 CPU @ 2.10

GHz

Stepping: 7CPU MHz: 2800.924CPU max MHz: 3700.0000CPU min MHz: 1000.0000BogoMIPS: 4200.00L1d cache: 32

K

L1i cache: 32

K

L2 cache: 1024

K

L3 cache: 30976

K

NUMA node0 CPU(s): 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172NUMA node1 CPU(s): 1,5,9,13,17,21,25,29,33,37,41,45,49,53,57,61,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,129,133,137,141,145,149,153,157,161,165,169,173NUMA node2 CPU(s): 2,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,66,70,74,78,82,86,90,94,98,102,106,110,114,118,122,126,130,134,138,142,146,150,154,158,162,166,170,174NUMA node3 CPU(s): 3,7,11,15,19,23,27,31,35,39,43,47,51,55,59,63,67,71,75,79,83,87,91,95,99,103,107,111,115,119,123,127,131,135,139,143,147,151,155,159,163,167,171,175Flags: 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_capabilities1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29. 3.4 数据库配置选项参数 复制[mysqld]skip-

networking

lower_case_table_names = 1character-set-server =

UTF8MB4

skip_name_resolve = 1default_time_zone = "+8:00"

#performance setttings

lock_wait_timeout = 3600open_files_limit = 65535back_log = 1024max_connections = 1024max_connect_errors = 1000000table_open_cache = 1024table_definition_cache = 1024thread_stack = 512

K

sort_buffer_size = 4

M

join_buffer_size = 4

M

read_buffer_size = 8

M

read_rnd_buffer_size = 4

M

bulk_insert_buffer_size = 64

M

thread_cache_size = 768interactive_timeout = 600wait_timeout = 600tmp_table_size = 32

M

max_heap_table_size = 32

M

#log settings

log_timestamps =

SYSTEM

log_error = error.loglog_error_verbosity = 3slow_query_log = 1log_slow_extra = 1#log_slow_verbosity =

FULL

slow_query_log_file = slow.loglong_query_time = 0.01log_queries_not_using_indexes = 1log_throttle_queries_not_using_indexes = 60min_examined_row_limit = 0log_slow_admin_statements = 1log_slow_slave_statements = 1log_bin =

binlog

binlog_format =

ROW

sync_binlog = 1binlog_cache_size = 4

M

max_binlog_cache_size = 2

G

max_binlog_size = 1

G

binlog_rows_query_log_events = 1binlog_expire_logs_seconds = 604800#binlog_expire_logs_auto_purge = 1binlog_checksum =

CRC32

gtid_mode = ONenforce_gtid_consistency = TRUE

#myisam settings

key_buffer_size = 32

M

myisam_sort_buffer_size = 128

M

#replication settings

#master_info_repository = TABLE#relay_log_info_repository = TABLErelay_log_recovery = 1slave_parallel_type =

LOGICAL_CLOCK

slave_parallel_workers = 2binlog_transaction_dependency_tracking =

WRITESET

slave_preserve_commit_order = 1slave_checkpoint_period = 2

#innodb settings

transaction_isolation = REPEATABLE-

READ

innodb_buffer_pool_size = 2

G

innodb_buffer_pool_instances = 8innodb_data_file_path = ibdata1:12M:

autoextend

innodb_flush_log_at_trx_commit = 1innodb_log_buffer_size = 32

M

innodb_log_file_size = 2

G

innodb_log_files_in_group = 3innodb_doublewrite_files = 2innodb_max_undo_log_size = 4

G

innodb_io_capacity = 400000innodb_io_capacity_max = 800000innodb_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 = 4000innodb_lock_wait_timeout = 10innodb_rollback_on_timeout = 1innodb_print_all_deadlocks = 1innodb_online_alter_log_max_size = 4

G

innodb_print_ddl_logs = 0innodb_status_file = 1innodb_status_output = 0innodb_status_output_locks = 1innodb_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%=onperformance_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 = 501.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81.82.83.84.85.86.87.88.89.90.91.92.93.94.95.96.97.98.99.100.101.102.103.104.105.106.107.108.109.110.111.112.113.114.115.116.117.118.119.120.121.122.123.站群服务器