Discussion This tutorial explains the various aspects of the Docker Container service. Starting with the basics of Docker which focuses on the installation and configuration of Docker, it gradually moves on to advanced topics such as Networking and Registries. The last few chapters of this tutorial cover the development aspects of Docker and how you can get up and running on the development environments using Docker Containers. Audience This tutorial is meant for those who are interested in learning Docker as a container service. This product has spread like wildfire across the industry and is really making an impact on the development of new generation applications.
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It is made up of two components: iometer. In order to run a benchmark the Windows computer running iometer. Both must be able to connect to one another.
How to run a benchmark Here is a high level view of running a benchmark. A detailed explanation will follow. You need to start the iometer.
This will start the dynamo. If you need to run benchmark on two Linux servers la and lb and 1 windows server wa then you must start the dynamo program on the la, lb and wa servers. When you have configured all the parameters for running the benchmark simply click on the start icon When the benchmark run time is reached or you click the stop icon if the duration is specified as 0 then the result of the benchmark will be written into a csv file.
Now for the details read on. This indicates that iometer. If you click on the plus sign you will see a list of workers, one for each CPU on the computer running the dynamo program in this case the same Windows computer running the iometer. This means that there are up to so many workers potentially available to perform tests.
The number of worker that will be utilized depends on the number of disk targets that are selected. All disk targets will be distributed among the workers equally. This hostname or IP address will be used by the computer running the iometer program. Once you start a dynamo, you will see it appear in the topology list of iometer as ubuntu-precise in the screen shot below: Configure the parameters In order to run a benchmark, you must configure all the managers that will be used in the iometer topology window.
To do this you must click each manager in the topology and perform the following steps: click the Disk Targets tab and select the disks to use in the benchmark. Control click will select multiple disks or to select no disk, control click all selected disks to deselect them. A disk is selected when it has a red x in the check box as in Select a maximum disk size of sectors Click the Access Specifications tab and click the global access specification called Default.
Click the Edit Copy button. Change the Update Frequency to 5 seconds. Click the Test Setup tab and type a test description. Then select a 1 minute run time Remember to perform each of those steps for each connected dynamo or manager. Note that steps only need to be done the first time. Start the benchmark Once all managers have been configured, you are ready to run the benchmark. Please note that all workers on all managers will be running their first access specification at the same time, followed by their second access specification and so on.
If they are all hitting the same disk they will each interfere with one another. On a production system this can provide comparable measures as all benchmark are equally affected by the other activities. If you want to run them separately, just make sure that only 1 disk target is selected at a time. Since you have configured three access specification and a run time of 1 minutes, this means that the complete benchmark will take 3 minutes.
When ready, click the start green flag. A dialog box will appear allowing you to specify the filename of the CSV result file. Make sure you store it in a location and using a name that will reflect what the benchmark was about. When you click the save button the benchmark will start. Make sure you are on the Results Display tab to see the progress. This is what it will look like:.
Network Bandwidth Testing with Iometer
Dainos Windows Linux Linux Performance. Repeat this trial-and-error process until performance no longer improves. Maximize Performance The next and final step it to maximize performance. Otherwise, any changes made to access spec files not saved in this way are lost when IOmeter quits. NTFS iometter is faster than Linux ext3. Re-launch Iometer and select your new select your new Maximum Disk Size.
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Do not close it. It then returns this performance data to Iometer. Click Next and the first of two license agreement prompts will then display: All available drives are shown. Will the machine process transactions fast enough for the intended database application?
Click image for full-sized view. The name of the file is iobw. The Results Press the green flag button tuutorial begin tests. Do not close it.