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OpenBSD 7.8

(cdn.openbsd.org)
282 points paulnpace | 1 comments | 22 Oct 25 02:02 UTC | HN request time: 0.209s | source
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zdw ◴[22 Oct 25 04:18 UTC] No.45664845[source]▶
Has anyone benchmarked TCP performance now that it's outside of the global kernel lock?

I wonder how useful this will be for the modest but still multicore systems used for firewalls.

replies(3): >>45667461 #>>45667511 #>>45667571 #
1. daneel_w ◴[22 Oct 25 11:24 UTC] No.45667461[source]▶
Network performance has gotten steadily better during the last three or so years, to the tune of most network drivers today seeing around 2x throughput compared to a few years back.

I have a retired mid-2010s Celeron platform which managed about 300 Mbit/s on OpenBSD 7.1/7.2. With OpenBSD 7.6 it reached well over 700 MBit/sec. I also have an early 2020s Atom platform which saturates its 2.5GbE interface without any problems. Not all of the network drivers perform equally but the network stack improvements have all the same made them take pretty big leaps.