Centos7 Source Installation Memaslap (libmemcached)--memcached Benchmark Testing tool

Memaslap is a load generation and benchmark tool for memcached servers. It generates configurable workload such as threads, Concurrencies,connections, run time, overwrite, Miss rate, key size, V Alue size, get/setproportion, expected throughput, and so on. Furthermore, it also tests dataverification, expire-time verification, UDP, binary protocol, Facebook test,replication tes T, Multi-get and reconnection, etc.

It can be considered that Memaslap is an upgraded version of Emslap, offering more features.

Prerequisite: Memcached is installed to ensure that the Libevent library is installed

Yum install libevent.x86_64  libevent-devel.x86_64    memcached.x86_64

Memaslap is a component of the libmemcached, so you need to compile the installation. (Libmemcached is a memcached library, client library, C and C + + language implementation of the client library, with low memory occupancy, thread safety, and provides full support for memcached functionality.) ）

  wget  https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz  
  tar zxvf Libmemcached-1.0.18.tar.gz-c/data/  
  cd/data/libmemcached-1.0.18/  
  ./configure-prefix=/usr/local/ libmemcached--with-memcached--enable-memaslap make make and  
  install

If you have memaslap this file under/usr/local/libmemcached/bin, it means that the installation was successful

Problems that you may encounter

1.

/bin/ld:clients/ms_thread.o:undefined reference to symbol ' pthread_key_delete@ @GLIBC_2.2.5 '
/bin/ld:note: ' pthread_key_delete@ @GLIBC_2.2.5 ' is defined in dso/lib64/libpthread.so.0 so try adding it to the linker command
line /lib64/libpthread.so.0:could not read Symbols:invalid operation
Collect2:error:ld returned 1 exit status
make [1]: * * * [Clients/memaslap] Error 1

Solutions

Try going into the Makefile and adding '-l/lib64-lpthread ' to the variable ldflags.

Ldflags variable in makefile file 2937 line

Then make & make Install

Reference links This guy's got a problem with the grammar.

2. C + + compiler not installed

# CENTOS7
Yum Group install "Development Tools" 

# if error
./libtool:line 990:g++: Command not found error message
Yum -y install gcc* 
# then continue make

# CENTOS6
 https://www.vultr.com/docs/how-to-install-gcc-on-centos-6

Finally, show

$ /usr/local/libmemcached/bin/memaslap -h
memslap v1.0
    Generates workload against memcached servers.

Usage:
    memslap -hV | -s servers [-F config_file] [-t time | -x exe_num] [...]

Options:
    -s, --servers=
        List one or more servers to connect. Servers count must be less than
        threads count. e.g.: --servers=localhost:1234,localhost:11211
    -T, --threads=
        Number of threads to startup, better equal to CPU numbers. Default 8.
    -c, --concurrency=
        Number of concurrency to simulate with load. Default 128.
    -n, --conn_sock=
        Number of TCP socks per concurrency. Default 1.
    -x, --execute_number=
        Number of operations(get and set) to execute for the
        given test. Default 1000000.
    -t, --time=
        How long the test to run, suffix: s-seconds, m-minutes, h-hours,
        d-days e.g.: --time=2h.
    -F, --cfg_cmd=

▽
        Load the configure file to get command,key and value distribution list.
    -w, --win_size=
        Task window size of each concurrency, suffix: K, M e.g.: --win_size=10k.
        Default 10k.
    -X, --fixed_size=
        Fixed length of value.
    -v, --verify=
        The proportion of date verification, e.g.: --verify=0.01
    -d, --division=
        Number of keys to multi-get once. Default 1, means single get.
    -S, --stat_freq=
        Frequency of dumping statistic information. suffix: s-seconds,
        m-minutes, e.g.: --resp_freq=10s.
    -e, --exp_verify=
        The proportion of objects with expire time, e.g.: --exp_verify=0.01.
        Default no object with expire time
    -o, --overwrite=
        The proportion of objects need overwrite, e.g.: --overwrite=0.01.
        Default never overwrite object.
    -R, --reconnect
        Reconnect support, when connection is closed it will be reconnected.
    -U, --udp
        UDP support, default memslap uses TCP, TCP port and UDP port of
        server must be same.
    -a, --facebook
        Whether it enables facebook test feature, set with TCP and multi-get with UDP.
    -B, --binary
        Whether it enables binary protocol. Default with ASCII protocol.
    -P, --tps=
        Expected throughput, suffix: K, e.g.: --tps=10k.
    -p, --rep_write=
        The first nth servers can write data, e.g.: --rep_write=2.
    -b, --verbose
        Whether it outputs detailed information when verification fails.
    -h, --help
        Display this message and then exit.
    -V, --version
        Display the version of the application and then exit.

Examples:
    memslap -s 127.0.0.1:11211 -S 5s
    memslap -s 127.0.0.1:11211 -t 2m -v 0.2 -e 0.05 -b
    memslap -s 127.0.0.1:11211 -F config -t 2m -w 40k -S 20s -o 0.2
    memslap -s 127.0.0.1:11211 -F config -t 2m -T 4 -c 128 -d 20 -P 40k
    memslap -s 127.0.0.1:11211 -F config -t 2m -d 50 -a -n 40
    memslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m
    memslap -s 127.0.0.1:11211,127.0.0.1:11212 -F config -t 2m -p 2

 

	
  


 

Reference

MEMASLAP Official Website documents

http://blog.csdn.net/wangsg2014/article/details/17451273

http://blog.csdn.net/jzmzy/article/details/47806371