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1.概述
由go语言编写的类似于sysbench的压测工具，目前仅支持mysql。
支持实时查看TPS，此外还通过SSH通道可以使用监控命令vmstat/iostat。
2.安装：
#yum -y install golang
#cd /usr/local
#git clone https://github.com/xelabs/benchyou.git
#cd benchyou
#make
--> go get...
go get github.com/xelabs/go-mysqlstack/driver
--> Building...
go build -v -o bin/benchyou src/bench/benchyou.go
xcommon
vendor/golang.org/x/crypto/curve25519
vendor/golang.org/x/crypto/ed25519/internal/edwards25519
vendor/github.com/spf13/pflag
xworker
sysbench
vendor/golang.org/x/crypto/ed25519
vendor/golang.org/x/crypto/ssh
vendor/github.com/spf13/cobra
xstat
xcmd
command-line-arguments
#cd bin
3.benchyou 的帮助信息：
# /usr/local/benchyou/bin/benchyou --help
Usage:
benchyou [command]
Available Commands:
prepare
cleanup
random
seq
range
Flags:
--batch-per-commit int #rows per transaction(Default 1) (default 1)
--delete-threads int number of delete threads to use(Default 0)
--max-request uint limit for total requests, including write and read(Default 0, means no limits)
--max-time int limit for total execution time in seconds(Default 3600) (default 3600)
--mysql-db string MySQL database name(Default sbtest) (default "sbtest")
--mysql-enable-xa int enable MySQL xa transaction for insertion {0|1} (Default 0)
--mysql-host string MySQL server host(Default NULL)
--mysql-password string MySQL password(Default benchyou) (default "benchyou")
--mysql-port int MySQL server port(Default 3306) (default 3306)
--mysql-range-order string range query sort the result-set in {ASC|DESC} (Default ASC) (default "ASC")
--mysql-table-engine string storage engine to use for the test table {tokudb,innodb,...}(Default tokudb) (default "innodb")
--mysql-user string MySQL user(Default benchyou) (default "benchyou")
--oltp-tables-count int number of tables to create(Default 8) (default 8)
--read-threads int number of read threads to use(Default 32) (default 32)
--rows-per-insert int #rows per insert(Default 1) (default 1)
--ssh-host string SSH server host(Default NULL, same as mysql-host)
--ssh-password string SSH server password(Default benchyou) (default "benchyou")
--ssh-port int SSH server port(Default 22) (default 22)
--ssh-user string SSH server user(Default benchyou) (default "benchyou")
--update-threads int number of update threads to use(Default 0)
--write-threads int number of write threads to use(Default 32) (default 32)
4.压力测试准备和结束的操作：
--prepare:
/usr/local/benchyou/bin/benchyou --mysql-db=bench --mysql-host=10.19.189.221 --mysql-user=backup --mysql-password=backup --mysql-port=3308 --oltp-tables-count=32 prepare
--cleanup:
/usr/local/benchyou/bin/benchyou --mysql-db=bench --mysql-host=10.19.189.221 --mysql-user=backup --mysql-password=backup --mysql-port=3308 --oltp-tables-count=32 cleanup
--压力测试的种类：
random insert(Write/Read Ratio=128:8):
/usr/local/benchyou/bin/benchyou --mysql-db=bench --mysql-host=10.19.189.221 --mysql-user=backup --mysql-password=backup --mysql-port=3308 --oltp-tables-count=32 --ssh-user=benchyou --ssh-password=benchyou --write-threads=128 --read-threads=8 --max-time=3600 random
注释:以下压测语句的共同部分如下：
/usr/local/benchyou/bin/benchyou --mysql-db=bench --mysql-host=10.19.189.221 --mysql-user=backup --mysql-password=backup --mysql-port=3308 --oltp-tables-count=32 --ssh-user=benchyou --ssh-password=benchyou
下列压测语句只提供不同的部分：
sequential insert(Write/Read Ratio=128:8):
--write-threads=128 --read-threads=8 --max-time=3600 seq
mix(Write/Read/Update/Delete Ratio=4:4:4:4):
--write-threads=4 --read-threads=4 --update-threads=4 --delete-threads=4 --max-time=3600 random
insert multiple rows(10 rows per insert):
--write-threads=4 --rows-per-insert=10 --max-time=3600 random
batch update(10 rows per transaction):
--update-threads=4 --batch-per-commit=10 --max-time=3600 random
query-range(Write/Read Ratio=128:8):
--write-threads=128 --read-threads=8 --max-time=3600 --mysql-range-order=DESC range
5.压测结果解读：
time: benchmark uptime 压测时间总长
thds: read threads and write(insert/update/delete) threads 读写线程数
tps: transaction per second, including write and read 每秒事务数包括读和写
wtps: write tps 写的TPS
rtps: read tps 读的TPS
rio: read io numbers per second 每秒读的IO数。
rio/op: rio per operation
wio: write io numbers per second 每秒写的IO数。
wio/op: wio per operation
rMB: amount data read from the device(megabytes) per second 没秒大约写的MB
rKB/op: rKB per operation
wMB: amount data written to the device(megabytes) per second
wKB/op: wKB per operation
cpu/op: CPU usecs per operation, measured by vmstat
freeMB: the amount of idle memory(megabytes)
cacheMB: the amount of memory(megabytes) used as cache
w-rsp: the response time of one write operation, in millisecond
r-rsp: the response time of one read operation, in millisecond
total-number: the total number events
示例：
...
time thds tps wtps rtps rio rio/op wio wio/op rMB rKB/op wMB wKB/op cpu/op freeMB cacheMB w-rsp(ms) r-rsp(ms) total-number
[61s] [r:8,w:128,u:0,d:0] 56036 16824 39212 0 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 0 0 2.20 0.12 3040434
----------------------------------------------------------------------------------------------avg---------------------------------------------------------------------------------------------
time tps wtps rtps rio rio/op wio wio/op rMB rKB/op wMB wKB/op cpu/op w-rsp(ms) r-rsp(ms) total-number
[61s] 50106 15455 34651 0 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00 [avg:0.04,min:0.00,max:20.25] [avg:0.00,min:0.00,max:24.53] 3056518
总结：
相对来说压测的项目比较少，目前的版本类似于sysbench的0.5版本的参数。
压测的数据仅供参考，在生产的压测的还是使用sysbench比较好，不过由于此工具是golang编写的，具有进步意义。