Simplicity is a form of art...

Comparing performance with sysbench: performance analysis

So in the past few posts I discussed how sysbench can be used to simulate some workloads, specific to a particular set of tasks. I used the benchmark application to look at the differences between the guest and host on my main laptop, and saw a major performance regression with …

Comparing performance with sysbench: memory, threads and mutexes

In the previous post, I gave some feedback on the cpu and fileio workload tests that sysbench can handle. Next on the agenda are the memory, threads and mutex workloads.

When using the memory workload, sysbench will allocate a buffer (provided through the --memory-block-size parameter, defaults to 1kbyte) and each …

Comparing performance with sysbench: cpu and fileio

Being busy with virtualization and additional security measures, I frequently come in contact with people asking me what the performance impact is. Now, you won't find the performance impact of SELinux here as I have no guests nor hosts that run without SELinux. But I did want to find out …