摘要
Stress-NG 测试完之后
突然想 使用sysbenchen也进行一次压测
验证一把 超线程对数据的性能影响.
压测命令
./sysbench \
--db-driver=pgsql \
--pgsql-host=10.24.2x.xx \
--pgsql-port=5432 \
--pgsql-user=xxxx \
--pgsql-password=password \
--pgsql-db=postgres \
--threads=10 --time=30 \
--events=0 \
--report-interval=10 \
--percentile=99 ../share/sysbench/oltp_read_write.lua \
prepare
./sysbench \
--db-driver=pgsql \
--pgsql-host=10.24.2x.xx \
--pgsql-port=5432 \
--pgsql-user=xxxx \
--pgsql-password=password \
--pgsql-db=postgres \
--threads=10 --time=30 \
--events=0 \
--report-interval=10 \
--percentile=99 ../share/sysbench/oltp_read_write.lua \
run
./sysbench \
--db-driver=pgsql \
--pgsql-host=10.24.2x.xx \
--pgsql-port=5432 \
--pgsql-user=xxxx \
--pgsql-password=password \
--pgsql-db=postgres \
--threads=10 --time=30 \
--events=0 \
--report-interval=10 \
--percentile=99 ../share/sysbench/oltp_read_write.lua \
cleanup
结果分析
| 是否开启超线程 | 事务效率(每秒) | 查询效率(每秒) | 最小响应时间(ms) | 平均响应时间 | 99%的响应时间 |
|---|---|---|---|---|---|
| 是 32核心/64线程 | 211.63 | 4329.45 | 20.03 | 47.22 | 102.97 |
| 否 32核心/32线程 | 217.78 | 4459.01 | 16.59 | 45.89 | 139.85 |
| 关闭超线程提升 | 103% | 103% | 120% | 103% | 74% |
注意1 效率提示部分 我都换算成了越大越好
注意2 除了99%响应时间,关闭超线程对数据库都有大约3%的性能提升
开启超线程的结果
[ 10s ] thds: 10 tps: 184.66 qps: 3794.17 (r/w/o: 2665.11/740.54/388.51) lat (ms,99%): 909.80 err/s: 4.90 reconn/s: 0.00
[ 20s ] thds: 10 tps: 204.91 qps: 4186.76 (r/w/o: 2938.01/819.93/428.82) lat (ms,99%): 114.72 err/s: 5.00 reconn/s: 0.00
[ 30s ] thds: 10 tps: 244.90 qps: 5016.71 (r/w/o: 3519.61/982.40/514.70) lat (ms,99%): 80.03 err/s: 6.30 reconn/s: 0.00
SQL statistics:
queries performed:
read: 91238
write: 25439
other: 13332
total: 130009
transactions: 6355 (211.63 per sec.)
queries: 130009 (4329.45 per sec.)
ignored errors: 162 (5.39 per sec.)
reconnects: 0 (0.00 per sec.)
General statistics:
total time: 30.0274s
total number of events: 6355
Latency (ms):
min: 20.03
avg: 47.22
max: 1124.25
99th percentile: 102.97
sum: 300089.92
Threads fairness:
events (avg/stddev): 635.5000/10.03
execution time (avg/stddev): 30.0090/0.01
关闭超线程的结果
[ 10s ] thds: 10 tps: 185.66 qps: 3793.26 (r/w/o: 2662.08/740.56/390.62) lat (ms,99%): 893.56 err/s: 4.20 reconn/s: 0.00
[ 20s ] thds: 10 tps: 243.81 qps: 5002.51 (r/w/o: 3511.78/975.32/515.41) lat (ms,99%): 81.48 err/s: 6.40 reconn/s: 0.00
[ 30s ] thds: 10 tps: 223.70 qps: 4590.28 (r/w/o: 3222.39/893.50/474.40) lat (ms,99%): 144.97 err/s: 6.70 reconn/s: 0.00
SQL statistics:
queries performed:
read: 94010
write: 26123
other: 13815
total: 133948
transactions: 6542 (217.78 per sec.)
queries: 133948 (4459.01 per sec.)
ignored errors: 173 (5.76 per sec.)
reconnects: 0 (0.00 per sec.)
General statistics:
total time: 30.0383s
total number of events: 6542
Latency (ms):
min: 16.59
avg: 45.89
max: 1103.25
99th percentile: 139.85
sum: 300197.16
Threads fairness:
events (avg/stddev): 654.2000/15.81
execution time (avg/stddev): 30.0197/0.01