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High Performance SSH/SCP

High Performance SSH/SCP

6 comments

·December 11, 2025
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josephg

Any chance this work can be upstreamed into mainline SSH? I'd love to have better performance for SSH, but I'm probably not going to install and remember to use this just for the few times it would be relevant.

Almondsetat

OpenSSH is from the people at OpenBSD, which means performance improvements have to be carefully vetted against bugs, and, judging by the fact that they're still on fastfs and the lack of TRIM in 2025, that will not happen.

harvie

Also upstream is extremely well audited. That's a huge benefit i don't want to loose by using fork.

Bad_CRC

this, I'm not going to start using a random ssh fork with modified ciphers.

suprjami

Unlikely. These patches have been carried out-of-tree for over a decade precisely because upstream OpenSSH won't accept them.

hsbauauvhabzb

Depending on your hardware architecture and security needs, fiddling with ciphers in mainline might improve speed.