Linux 7.2 will improve performance for AMD EPYC Sorano

A successor of Linux 7.1 will bring many exciting set of changes related to different parts of the kernel, but it looks like that there are some of the most exciting changes done to the kernel, and you’ll be able to experience them with the first release candidate of Linux 7.2 expected to release on June 29th.

According to the tests made by Phoronix, Linux 7.2 has brought performance improvements to systems running the AMD EPYC Sorano processors, and the test was performed on an AMD EPYC 8635P processor with 84 cores and 168 threads. This processor operates on a Zen 5 architecture.

The initial test that was made focused on improvements of performance regarding the localhost network processing speed, as well as the measurement of latency and a massive boost of performance with Stress-NG.

This test was focused on localhost TCP and QUIC protocol performance with 1, 4, 16, and 32 threads for TCP processing and 1, 2, 4, 8, 16, 32 threads for QUIC processing. For every test, Linux 7.2’s current Git branch wins over the current stable release, which was Linux 7.1. For example, in TCP with 4 threads, 360.59 Gbps was achieved in Linux 7.2 over 308.60 Gbps. Another one was QUIC with 16 threads, 8.67 Gbps was achieved over 8.36 Gbps.

When it comes to network socket benchmarking, latency has also been lowered, with 7.475 µsec (microseconds) being achieved for socket processing latency under Linux 7.2, over 7.729 µsec. As for stress testing, Linux 7.2 achieves 68,499,720.48 BogoOps/s (bogus operations per second), which is a significant improvement over Linux 7.1, which achieved only 12,557,904.56 BogoOps/s.

For more information, consult this Phoronix article.

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