Environment

The following lists the recommended system configurations for the WebRTC gateway in lab and production environments.

• CPU: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz or greater
• In Lab/POC:
  • 1 vCPU and 4 GB RAM recommended
  • Disk space allocation minimum 35GB
• In production:
  • 1-2 vCPU(s) and 4-8 GB RAM recommended
  • Disk space allocation minimum 60GB

Check System Performance

Sysbench is a common benchmarking utility that you can use to test your server performance on Linux. Since it is one of the most common benchmarking utilities, you can easily find and compare performance results online.

Installing Sysbench

You can install Sysbench via yum. To install Sysbench 0.4.12 on Redhat/CentOS 6.x, you can wget the latest remi and epel repositories, install them, and then install Sysbench.

wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm

yum install sysbench

Sysbench CPU Test

To run a single-threaded CPU test, run the following command. Typically with a value of 20000, a single-threaded test can take anywhere from 20 seconds to a minute or more. The shorter the time, the better the result, so faster CPUs will take less time to run the test.

sysbench --test=cpu --cpu-max-prime=20000 --num-threads=1 run

Important

For the Genesys WebRTC Gateway deployment, we recommend that the total amount of time for the single-threaded CPU test be within one minute.

You can use the script below to run multi-threaded Sysbench CPU tests. Multi-threaded CPUs will not show their true performance unless you run the test with the correct amount of threads. If you have an 8-core CPU, you must run an 8-thread CPU test to get the true performance number.

for each in 1 2 4 8; do sysbench --test=cpu --cpu-max-prime=20000 --num-threads=$each run; done

Sysbench Memory Test

To test the RAM performance, run the following memory operations speed test.

sysbench --test=memory --memory-block-size=1M --memory-total-size=100G run

Important

For the Genesys WebRTC Gateway deployment, we recommend that the performance result be 4000 ops/sec and higher.

Sysbench Disk IO Test

To prepare test files, run the following command. Typically, prepare a test file with a size that is about two times more than the amount of RAM the server has. For example, if the server has 4GB RAM, use a 8GB file size.

sysbench --test=fileio --file-total-size=8G prepare

Then, follow by a basic Sysbench random read/write test:

sysbench --test=fileio --file-total-size=8G --file-test-mode=rndrw --init-rng=on --max-time=180 --max-requests=0 run

Finally, do cleanup:

sysbench --test=fileio --file-total-size=8G cleanup

Important

For the Genesys WebRTC Gateway deployment, we recommend that the performance result be 1000 iops/sec and above.