Apart from all the new cool features in the freshly released Red Hat Enterprise Linux 8 one thing that is just as important is the improvements in performance. The team over at Red Hat has performed a bunch of benchmark tests on both RHEL 7.6 and RHEL 8.0 and the results show some really nice improvements.
Overall the performance looks good. The chart below shows around 5% improvement in CPU, 20% less memory usage, 15% increased disk I/O, and around 20-30% improved network performance.
Looking at more specific metrics we see a 40% increase in disk throughput on the XFS file system as shown in the chart below.
If you are running OpenStack the network control plane will also see a large improvement when moving to RHEL 8. Read the full article at redhat.com for more details.