在阿里云的RDS上面看到了他们的测试报告,对RDS的IOPS、QPS等做了测试,用的是sysbench0.5版本,网上和官网只看到sysbench0.4相关
在阿里云的RDS上面看到了他们的测试报告,对RDS的IOPS、QPS等做了测试,,用的是sysbench0.5版本,网上和官网只看到sysbench0.4相关版本,没有0.5的。
后来发现可以在线获取到0.5的版本,一条命令:bzr branch lp:sysbench
下面是获取过程(2014年1-2月测试时是可以获取到的)
系统环境:CentOS6.3 x64位
连接外网:
[root@localhost ~]# route add default gw 192.168.0.1 [root@localhost ~]# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1002 0 0 eth0 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
这里192.168.0.1是我的外网网关;
[root@localhost ~]# ping ping: unknown host
加入DNS:
[root@localhost ~]# echo "nameserver 8.8.8.8" >> /etc/resolv.conf [root@localhost ~]# ping PING (115.239.210.27) 56(84) bytes of data. 64 bytes from 115.239.210.27: icmp_seq=1 ttl=55 time=12.1 ms 64 bytes from 115.239.210.27: icmp_seq=2 ttl=55 time=14.0 ms 64 bytes from 115.239.210.27: icmp_seq=3 ttl=55 time=13.6 ms ^C --- ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2375ms rtt min/avg/max/mdev = 12.183/13.294/14.037/0.800 ms
使用bzr:
[root@localhost ~]# bzr branch lp:sysbench -bash: bzr: command not found
安装bzr:
[root@localhost ~]# ll total 20 -rw-------. 1 root root 1232 Apr 10 2013 anaconda-ks.cfg -rw-r--r--. 1 root root 9064 Apr 10 2013 install.log -rw-r--r--. 1 root root 3091 Apr 10 2013 install.log.syslog [root@localhost ~]# yum install bzr
避免赘述,这个过程省略;下面是安装的包:
(1/3): bzr-2.1.1-2.el6.x86_64.rpm (2/3): python-crypto-2.0.1-22.el6.x86_64.rpm (3/3): python-paramiko-1.7.5-2.1.el6.noarch.rpm [root@localhost ~]# bzr branch lp:sysbench You have not informed bzr of your Launchpad ID, and you must do this to write to Launchpad or access private data. See "bzr help launchpad-login". Branched 120 revision(s).
已经获取了,sysbench目录:
[root@localhost ~]# ll total 24 -rw-------. 1 root root 1232 Apr 10 2013 anaconda-ks.cfg -rw-r--r--. 1 root root 9064 Apr 10 2013 install.log -rw-r--r--. 1 root root 3091 Apr 10 2013 install.log.syslog drwxr-xr-x 7 root root 4096 Feb 10 23:42 sysbench [root@localhost ~]# ls -l ./sysbench/ total 100 -rwxr-xr-x 1 root root 3074 Feb 10 23:42 autogen.sh -rw-r--r-- 1 root root 7585 Feb 10 23:42 ChangeLog drwxr-xr-x 2 root root 4096 Feb 10 23:42 config -rw-r--r-- 1 root root 11267 Feb 10 23:42 configure.ac -rw-r--r-- 1 root root 17992 Feb 10 23:42 COPYING drwxr-xr-x 3 root root 4096 Feb 10 23:42 doc -rwxr-xr-x 1 root root 7122 Feb 10 23:42 install-sh drwxr-xr-x 2 root root 4096 Feb 10 23:42 m4 -rw-r--r-- 1 root root 840 Feb 10 23:42 Makefile.am -rwxr-xr-x 1 root root 10266 Feb 10 23:42 missing -rwxr-xr-x 1 root root 1988 Feb 10 23:42 mkinstalldirs -rw-r--r-- 1 root root 3044 Feb 10 23:42 README -rw-r--r-- 1 root root 973 Feb 10 23:42 README-WIN.txt drwxr-xr-x 5 root root 4096 Feb 10 23:42 sysbench -rw-r--r-- 1 root root 26 Feb 10 23:42 TODO
打个包备用
tar -zcvf sysbench0.5.tar.gz ./sysbench/

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters

MySQloffersechar, Varchar, text, Anddenumforstringdata.usecharforfixed-Lengthstrings, VarcharerForvariable-Length, text forlarger text, AndenumforenforcingdataAntegritywithaetofvalues.

Optimizing MySQLBLOB requests can be done through the following strategies: 1. Reduce the frequency of BLOB query, use independent requests or delay loading; 2. Select the appropriate BLOB type (such as TINYBLOB); 3. Separate the BLOB data into separate tables; 4. Compress the BLOB data at the application layer; 5. Index the BLOB metadata. These methods can effectively improve performance by combining monitoring, caching and data sharding in actual applications.

Mastering the method of adding MySQL users is crucial for database administrators and developers because it ensures the security and access control of the database. 1) Create a new user using the CREATEUSER command, 2) Assign permissions through the GRANT command, 3) Use FLUSHPRIVILEGES to ensure permissions take effect, 4) Regularly audit and clean user accounts to maintain performance and security.

ChooseCHARforfixed-lengthdata,VARCHARforvariable-lengthdata,andTEXTforlargetextfields.1)CHARisefficientforconsistent-lengthdatalikecodes.2)VARCHARsuitsvariable-lengthdatalikenames,balancingflexibilityandperformance.3)TEXTisidealforlargetextslikeartic

Best practices for handling string data types and indexes in MySQL include: 1) Selecting the appropriate string type, such as CHAR for fixed length, VARCHAR for variable length, and TEXT for large text; 2) Be cautious in indexing, avoid over-indexing, and create indexes for common queries; 3) Use prefix indexes and full-text indexes to optimize long string searches; 4) Regularly monitor and optimize indexes to keep indexes small and efficient. Through these methods, we can balance read and write performance and improve database efficiency.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Atom editor mac version download
The most popular open source editor

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
