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by eisenbud
3745 days ago
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Lots of people are doing userspace networking to go faster. See netmap, DPDK, for other examples, or look at
https://www.cl.cam.ac.uk/research/security/ctsrd/pdfs/201408... In our case the kernel buys us very little but costs a lot, as others correctly pointed out in this thread. We spent a lot of time working on our performance via the kernel, with moderate success, but userspace talking directly to the NIC was a huge leap in performance. |
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