NAME

       memslap - libmemcached Documentation

SYNOPSIS

       memslap [options]

       Load testing and benchmarking a server

DESCRIPTION

       memslap  is  a  load  generation  and  benchmark tool for memcached(1) servers. It generates configurable
       workload such as threads, concurrencies, connections, run time, overwrite, miss  rate,  key  size,  value
       size, get/set proportion, expected throughput, and so on.

OPTIONS

       -h|--help
              Display help.

       -V|--version
              Display version.

       -q|--quiet
              Operate quietly.

       -v|--verbose
              Operate more verbosely.

       -d|--debug
              See -v|--verbose.

       -s|--servers <list of servers>
              Specify the list of servers as hostname[:port][,hostname[:port]...].

       -n|--non-blocking
              Enable non-blocking operations.

       -N|--tcp-nodelay
              Disable Nagle's algorithm.

       -b|--binary
              Enable binary protocol.

       -B|--buffer
              Buffer requests.

       -u|--username <username>
              Use username for SASL authentication.

       -p|--password <password>
              Use password for SASL authentication.

       -H|--hash <algorithm>
              Use algorithm as key hash algo.  See memcached_behavior_t::MEMCACHED_BEHAVIOR_HASH.

       -U|--udp
              Enable UDP operation mode.

       -R|--noreply
              Enable the NOREPLY behavior for storage commands.

       -F|--flush
              Flush all servers prior test.

       -t|--test <arg>
              Test to perform (options: get, mget, set; default: get).

       -c|--concurrency <num>
              Concurrency (number of threads to start; default: 1).

       -e|--execute-number <num>
              Number of times to execute the tests (default: 10000).

       -l|--initial-load <num>
              Number of keys to load before executing tests (default: 10000).

ENVIRONMENT

       MEMCACHED_SERVERS
              Specify a list of servers.

NOTES

   PROGRAM PREFIX
       The prefix of this program is variable, i.e. it can be configured at build time.

       Usually the client programs of libmemcached-awesome are prefixed with mem, like memcat or memcp.

       It  can  be  configured,  though, to replace the prefix with something else like mc, in case of that, the
       client programs of libmemcached-awesome would be called mccat, mccp, etc. respectively.

SEE ALSO

       memcached(1) libmemcached(3)

       • C/C++ Client Library for memcached

1.1                                               Sep 22, 2025                                        MEMSLAP(1)