https://bugzilla.mindrot.org/show_bug.cgi?id=2888
Bug ID: 2888
Summary: Consider adding other compression schemes (lz4, zstd)
Product: Portable OpenSSH
Version: 7.7p1
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P5
Component: Miscellaneous
Assignee: [email protected]
Reporter: [email protected]
I did some test and when enabling compression my CPU usage goes at 100%
at about 70-150Mb/s, depending on file compressibility. So it is not
very useful with a Gigabit Ethernet link.
To improve this I would propose to add other compression schemes, such
as lz4 ( https://github.com/lz4/lz4 ) or zstd (
https://github.com/facebook/zstd ).
They are order of magnitudes faster than current zlib-6 compression and
easily able to exceed Gigabit Ethernet speed.
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