sysbench | SysBench : a system performance benchmark

by nuodb C Version: Current License: GPL-2.0

X-Ray Key Features Code Snippets Community Discussions(7)Vulnerabilities Install Support

kandi X-RAY | sysbench Summary

sysbench is a C library. sysbench has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

sysbench: system evaluation benchmark. the idea is to quickly get an impression about system performance for mysql usage without setting up complex benchmark and even without installing mysql. in some cases this is very helpful. this is also the reason for having everything in simple file not depending on any external libraries. description: this benchmark was designed for identifying basic system parameters, as they are important for system using mysql (w innodb) under intensive load. handling of io in case of many parallel requests, checked as well as memory allocation/transfer speed and scheduler performance. cpu is benchmarked by using 64bit integer manipulation using euklid algorithms for prime number computation. benchmarks are designed to show benefit of multiple cpus as well as of multiple hard drives, battery backed up write cache. sequential read/writes test is a bit tricky, it means request are just given out sequentially, but there is no guaranty they will be actually executed this way, it could result in some sort of random io in case of bad io or threads scheduler. installing: see the file install for generic installation instructions. in most cases you will need the following steps: ./autogen.sh (unnecessary if you

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Support

sysbench has a low active ecosystem.

It has 17 star(s) with 12 fork(s). There are 51 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 2 have been closed. On average issues are closed in 1 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of sysbench is current.

Quality

sysbench has no bugs reported.

Security

sysbench has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

sysbench is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

sysbench releases are not available. You will need to build from source code and install.

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Community Discussions

Trending Discussions on sysbench

How to solve segmentation fault in change main function inputs with C code?

Error running a docker image, unable to locate package

Error making a job on a kubernetes cluster

How to test performance of MySQL NDB cluster(NDB storage engine) using SYSBENCH?

Sysbench test Mysql but no disk read

Why is a Core i5-6600 faster at non-square matrix multiplication than a Core i9-9960X?

How could database have worse benchmark results on faster disk?

QUESTION

How to solve segmentation fault in change main function inputs with C code?

Asked 2022-Mar-18 at 17:07

I want the following code, which is related to the Sysbench tool (https://github.com/akopytov/sysbench), to change from the following code to the next code, but I get an error with just this small change (Segmentation fault (core dumped)).

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ANSWER

Answered 2022-Mar-18 at 17:07

In order to emulate argv from main the strings pointed to by argv[n] to must be writable, which is not the case in your code where argv[n] point to string literals which cannot be written to.

Writing into a string literal is formally undefined behaviour in C, but on modern desktop platforms it typically triggers a seg fault.

And *tmp = '\0'; is actually writing into a string.

This should do the job, although I'm not entirely sure because I can't check it here easily.

Source https://stackoverflow.com/questions/71530342

QUESTION

Error running a docker image, unable to locate package

Asked 2021-Mar-11 at 20:55

I have this Dockerfile:

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ANSWER

Answered 2021-Mar-11 at 18:23

There is a reported bug about sysbench on aarch, ( which is the target arm processor that rpi uses). Try to follow the suggestion in: https://github.com/akopytov/sysbench/issues/298

Source https://stackoverflow.com/questions/66588118

QUESTION

Error making a job on a kubernetes cluster

Asked 2021-Mar-05 at 21:32

I'm trying to make a job that runs sysbench on a pod. First I make the job with the next yaml:

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ANSWER

Answered 2021-Mar-05 at 21:32

You're trying to run a linux/amd64 image on an ARM-based system: essentially, the error is saying that doesn't understand how to run instructions since binary and processor are speaking different languages.

You have to find a compatible Docker image for your architecture.

Source https://stackoverflow.com/questions/66497699

QUESTION

How to test performance of MySQL NDB cluster(NDB storage engine) using SYSBENCH?

Asked 2021-Jan-20 at 11:43

I want to test the performance of my NDB cluster.
I am thinking of using sysbench.
Are there any particular configuration changes required to make it work with the NDB cluster?
Is there any flag that I need to use during runtime to mention the Storage engine explicitly.

Need some help on this.

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ANSWER

Answered 2021-Jan-09 at 11:58

I have a set of scripts that I use to automate benchmarking with NDB Cluster. They are available from the MySQL website and contains both the scripts to automate Sysbench execution and a sysbench version integrated with those scripts.

This blog provides a manual into how to use those scripts. http://mikaelronstrom.blogspot.com/2018/08/manual-for-benchmark-toolset-dbt2.html

The script run_oltp.sh contains the setup of the execution of the sysbench program if you want to use sysbench on your own.

Source https://stackoverflow.com/questions/65594204

QUESTION

Sysbench test Mysql but no disk read

Asked 2020-Nov-01 at 05:46

When I use sysbench to test mysql, I use iotop to monitor io and I find only have DiSH WRITE speed, the DISK READ speed is always 0. Then I use free -h and I find that buffer/cache increase, does it mean that sysbench's test data is not write in disk but in buffer and no auto update into disk?

Thank you so much!

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ANSWER

Answered 2020-Nov-01 at 05:46

where is the mysql running ?? I dont know about iotop and what its measuring but even tiny sysbench runs generate enormous IO. it could be a user issue maybe, perhaps mysql is generating io under a different user and not getting picked up.

Source https://stackoverflow.com/questions/63386978

QUESTION

Why is a Core i5-6600 faster at non-square matrix multiplication than a Core i9-9960X?

Asked 2020-May-19 at 09:13

The following minimal benchmark rebuilds single-threaded code with -O3 -march=native on each machine, multiplying matrices that are either square or highly non-square (one dimension = 2).

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ANSWER

Answered 2020-May-19 at 09:13

As suggested by Peter Cordes in his comment, it seems to boil down to memory throughput.

Results of mbw 1000 show it:

i5-6600:

Source https://stackoverflow.com/questions/61832173

QUESTION

How could database have worse benchmark results on faster disk?

Asked 2020-Jan-06 at 17:03

I'm benchmarking comparable (2vCPU, 2G RAM) server (Ubuntu 18.04) from DigitalOcean (DO) and AWS EC2 (t3a.small).

The disk benchmark (fio) goes inline with the results of https://dzone.com/articles/iops-benchmarking-disk-io-aws-vs-digitalocean

In summary:

DO --

READ: bw=218MiB/s (229MB/s), 218MiB/s-218MiB/s (229MB/s-229MB/s), io=3070MiB (3219MB), run=14060-14060msec

WRITE: bw=72.0MiB/s (76.5MB/s), 72.0MiB/s-72.0MiB/s (76.5MB/s-76.5MB/s), io=1026MiB (1076MB), run=14060-14060msec

EC2 --

READ: bw=9015KiB/s (9232kB/s), 9015KiB/s-9015KiB/s (9232kB/s-9232kB/s), io=3070MiB (3219MB), run=348703-348703msec

WRITE: bw=3013KiB/s (3085kB/s), 3013KiB/s-3013KiB/s (3085kB/s-3085kB/s), io=1026MiB (1076MB), run=348703-348703msec

which shows DO disk more than 10 times faster than the EBS of EC2

However, sysbench following https://severalnines.com/database-blog/how-benchmark-postgresql-performance-using-sysbench is showing DO slower than EC2 (using Postgres 11 default configuration, read-write test on oltp_legacy/oltp.lua )

DO --

transactions: 14704 (243.87 per sec.)

Latency (ms):

min: 9.06

avg: 261.77

max: 2114.04

95th percentile: 383.33

EC2 --

transactions: 20298 (336.91 per sec.)

Latency (ms):

min: 5.85

avg: 189.47

max: 961.27

95th percentile: 215.44

What could be the explanation?

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ANSWER

Answered 2020-Jan-06 at 16:12

Sequential bandwidth and latency / iops are independent parameters.

Some workloads (like DBs) depend on latency for lots of small IOs. Or throughput for lots of small IO operations, iops (IOs per second).

Source https://stackoverflow.com/questions/59615125

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Vulnerabilities

No vulnerabilities reported

Install sysbench

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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