memcached / mc-crusher Goto Github PK

ENSIGN CRUSHER

License: BSD 3-Clause "New" or "Revised" License

C 55.16% Shell 0.07% Perl 39.51% Makefile 0.58% C++ 4.68%

mc-crusher's Introduction

An extremely rough but extremely damaging benchmark utility for memcached.

Does not use a client library.

Building
--------

$ (install libevent + headers)
$ ./compile

Usage
-----

Look in the conf/ directory for example configuration files.

$ ./mc-crusher --conf ./conf/loadconf --ip [ip] --port [port]
defaults:
host: 127.0.0.1
port: 11211

Running
-------

You can use the included bench-warmer.pl tool to preload some keys. mc-crusher
makes no attempt to recache anything on a miss.

Pick a config file, and start it as above. You should start a fresh memcached,
and run the "sample" script that comes with mc-crusher. mc-crusher makes no
attempt to read or validate response data.

Modify "sample" to print what you are most interested in examining.

The latency-sampler utility included is used to measure response latency
during a test. You must run it yourself, either after a warmup period or at
the same time as a test.

Start options
-------------

--conf [file]
 - the test configuration to load/run.

--ip [127.0.0.1]
 - IP address to connect to.

--port [11211]
 - port to connect to.

--timeout [seconds]
 - stop the test after this amount of time

--zipf-n
--zipf-s
 - Commands which will dump a curve from the supplied zipf arguments (N being
   limit, S being curve skew (0.00-2.00 useful range).
 - Exits after dumping 10 million key:frequency ratios.
 - Used for tuning zipf arguments in a config file. High skew gives "hot
   keys". Low skew gives a more gentle curve.

Configuration
-------------

mc-crusher reads a configuration file then begins a test run. These configurations
describe a template of a connection, one per line.

Each template can spawn N connections. This allows you to mix setters and
getters, getters of different sizes, binprot + asciiprot.

Config Options
--------------

send : defines what function to use to send requests to memcached
 - ascii_get : one get per request via asciiprot
 - ascii_set : one set per request via asciiprot
 - ascii_delete : one delete per request via asciiprot
 - ascii_mget : multiget test via asciiprot
 - bin_get : one get per req via binprot
 - bin_getq : endless streaming multiget from hell
 - bin_set : one set per req via binprot
 - bin_setq : unleash cthulu upon the cache_lock

recv : same, but for received data
 - blind_recv : mindlessly slurp any responses without inspecting them

mget_count : set this to the number of keys to fetch per get in ascii_mget

key_prefix : a string to prefix before each key's number (default 'foo')

value_size : size of the value to set

expire : the expiration value (default 0)

flags : client flags (raw number, default 0)

value : define a value by hand. Must be shortish and a string.

host : define a host to connect to

port : define a port to connect to

key_count : number of keys to iterate across. use with key_prealloc=0 to
iterate over large numbers of keys

key_randomize : shuffle the keys rather than fetching in order

usleep : fire one write event (up to pipeline count) with a microsecond sleep
after. the sleep is per-connection (so conns=2 will write twice per usleep)

stop_after : stop all conns for this test after N writes have been made.

pipelines : stack this many requests into the same syscall. Useful for
reducing some overhead for high request rates.

thread : number of threads to spawn with the same configuration. This means if
conns=1,thread=4 there will be four total connections made.

live_rand : if set to 1, will use embedded PCG randomizer to choose keys.
(default 0)

live_rand_zipf : if set to 1, paired with zipf_skew, will choose a key
randomizer which skews according to a zipf distribution (ie; keys early in the
list have a higher use bias).

zipf_skew : typically 0.01 to 2.00 in range. Higher skews create hot-key
scenarios, where a bulk of accesses are a handful of keys. Lower skews are
useful for creating somewhat realistic workloads of hot vs not as hot keys.

Caveats
-------

- Does not make any attempt to safely parse or validate the config file.

- It only works well with small values

- It makes no attempt to reconcile with errors in the protocol, and can break
  if memcached throws errors. It will also stop if the connections are closed.

- It's a ton of fun!

Future Features
---------------

A short list of things I intend to change or add:

- Fix the command generators to have a *little* error handling

- Add commands to iterate over different value sizes

- Bundle a better perl util for printing stats

mc-crusher's People

Contributors

Stargazers

Watchers

mc-crusher's Issues

EXPIRE is not fully implemented

The enum is there, but the implementation is missing

How to build the project?

I want to build the project and run it. But I have no idea how to build it. In readme it says I should install libevent and headers but I have no what headers is.

And then I need to exec ./compile but still, I couldn't find that binary executable file and I couldn't run make, which prompts me the following error.
mc-crusher.c:59:19: error: ‘NI_MAXHOST’ undeclared here (not in a function) char host_default[NI_MAXHOST] = "127.0.0.1";

Is this because I haven't installed the headers?

Crash(SEGV) when running with conf/huge_mget or conf/set_big_values

Description
Crash(SEGV) occurs when running mc-crusher with --conf ./conf/huge_mget or --conf ./conf/set_big_values. The rest of conf/* are fine.

Steps to Reproduce

Build and run official memcached-1.6.1. configure options used in my env is --disable-extstore --disable-tls --disable-seccomp --disable-sasl --disable-sasl-pwdb --disable-coverage --disable-docs
Execute ./mc-crusher --conf ./conf/huge_mget --ip MEMCACHED_IP. Result: SEGV
Execute ./mc-crusher --conf ./conf/set_big_values --ip MEMCACHED_IP. Result: SEGV

System Information

OS/Distro: Ubuntu
Version of OS/distro: 19.10
Version of memcached: 1.6.1
Hardware detail: VirtualBox

Details
Valgrind was executed after normal execution crash and below are the logs:

==3335== Memcheck, a memory error detector
==3335== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==3335== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==3335== Command: ./mc-crusher --conf ./conf/set_big_values --ip 192.168.56.102
==3335==
ip address default: 192.168.56.102
id 0 for key send value ascii_set
id 1 for key recv value blind_read
id 5 for key conns value 1
id 8 for key key_prefix value foo
id 12 for key value_size value 1047552
id 26 for key key_prealloc value 0
id 20 for key key_count value 4000
done initializing
==3335== Thread 2:
==3335== Invalid write of size 2
==3335== at 0x4841B33: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3335== by 0x10B9A1: ascii_write_flat_to_client (mc-crusher.c:487)
==3335== by 0x10BB53: run_write (mc-crusher.c:543)
==3335== by 0x10BD33: client_handler (mc-crusher.c:583)
==3335== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3335== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3335== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3335== by 0x4C00668: start_thread (pthread_create.c:479)
==3335== by 0x4D3C322: clone (clone.S:95)
==3335== Address 0x4f2fc78 is 0 bytes after a block of size 66,952 alloc'd
==3335== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3335== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3335== by 0x10D29A: start_template (mc-crusher.c:1048)
==3335== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3335== by 0x10D9DB: main (mc-crusher.c:1181)
==3335==

==3243== Memcheck, a memory error detector
==3243== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==3243== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==3243== Command: ./mc-crusher --conf ./conf/huge_mget --ip 192.168.56.102
==3243==
ip address default: 192.168.56.102
id 0 for key send value ascii_mget
id 1 for key recv value blind_read
id 5 for key conns value 1
id 15 for key mget_count value 500000
id 8 for key key_prefix value foobar
id 26 for key key_prealloc value 1
done initializing==3243== Thread 2:
==3243== Invalid write of size 2
==3243== at 0x4841B33: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10B3AB: ascii_mget_format (mc-crusher.c:393)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== by 0x4C00668: start_thread (pthread_create.c:479)
==3243== by 0x4D3C322: clone (clone.S:95)
==3243== Address 0x4f2fc78 is 0 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 2
==3243== at 0x4841B33: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE02: itoa (itoa_ljust.c:100)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2fc7a is 2 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x4841A48: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE26: itoa (itoa_ljust.c:102)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2fc7c is 4 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x10DE2F: itoa (itoa_ljust.c:105)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== by 0x4C00668: start_thread (pthread_create.c:479)
==3243== by 0x4D3C322: clone (clone.S:95)
==3243== Address 0x4f2fc7e is 6 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x10B3DF: ascii_mget_format (mc-crusher.c:395)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== by 0x4C00668: start_thread (pthread_create.c:479)
==3243== by 0x4D3C322: clone (clone.S:95)
==3243== Address 0x4f2fc7e is 6 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x4841B63: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10B3AB: ascii_mget_format (mc-crusher.c:393)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== by 0x4C00668: start_thread (pthread_create.c:479)
==3243== by 0x4D3C322: clone (clone.S:95)
==3243== Address 0x4f2fc7f is 7 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x4841B63: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE02: itoa (itoa_ljust.c:100)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2fc85 is 13 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 1
==3243== at 0x4841B63: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE26: itoa (itoa_ljust.c:102)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2fc87 is 15 bytes after a block of size 66,952 alloc'd
==3243== at 0x483A7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10BE9D: new_connection (mc-crusher.c:636)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==
==3243== Invalid write of size 2
==3243== at 0x4841B33: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE26: itoa (itoa_ljust.c:102)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2fc92 is 18 bytes after a block of size 66,960 in arena "client"
==3243==
==3243== Invalid write of size 1
==3243== at 0x4841A48: memmove (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x10DC5B: out2 (itoa_ljust.c:74)
==3243== by 0x10DE02: itoa (itoa_ljust.c:100)
==3243== by 0x10DF40: itoa_u32 (itoa_ljust.c:116)
==3243== by 0x10DFCF: itoa_u64 (itoa_ljust.c:132)
==3243== by 0x10B3D6: ascii_mget_format (mc-crusher.c:394)
==3243== by 0x10B461: ascii_write_flat_mget_to_client (mc-crusher.c:406)
==3243== by 0x10BB53: run_write (mc-crusher.c:543)
==3243== by 0x10BD33: client_handler (mc-crusher.c:583)
==3243== by 0x4875A10: ??? (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x487633E: event_base_loop (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10D346: thread_runner (mc-crusher.c:1063)
==3243== Address 0x4f2ff92 is 2 bytes after a block of size 16 alloc'd
==3243== at 0x483CD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==3243== by 0x4878F02: evmap_io_add_ (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x48740CD: event_add_nolock_ (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x48745A9: event_add (in /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6.0.2)
==3243== by 0x10C4E2: new_connection (mc-crusher.c:767)
==3243== by 0x10D29A: start_template (mc-crusher.c:1048)
==3243== by 0x10D1D4: parse_config_line (mc-crusher.c:1032)
==3243== by 0x10D9DB: main (mc-crusher.c:1181)
==3243==

Hi, The error when I ran the benchmark was as follows.Please help to see where the problem is.

../test-suites/test-nvdimm mm

numactl --cpunodebind=0 --membind=0 /root/memcached/memcached-1.5.12/memcached -u root -l 127.0.0.1 -t 32 -c 32000 -m 600000 -o no_lru_crawler -b 4096 -s /tmp/memcached.sock -l 127.0.0.1 -p 11211
memc started (main)
Can't use an undefined value as a symbol reference at Memcached/McCrusher.pm line 105.
Signal handled: Terminated.

command as follows:
$server_args = '-u root -l 127.0.0.1 -t 32 -c 32000 -m 600000 -o no_lru_crawler -b 4096 -s /tmp/memcached.sock';

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