Performance analysis between RHEL 7.6 and RHEL 8.0

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.

a candlestick chart which combines multiple tests
Photo: Red Hat

Looking at more specific metrics we see a 40% increase in disk throughput on the XFS file system as shown in the chart below.

RHEL 7.6 vs RHEL 8 AIM7 shared throughput - XFS
Photo: Red Hat

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.