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dsp
on June 19, 2021
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Spectre mitigations murder userspace performance
> having the kernel execute consecutive systemcalls without switching the context
io_uring enables exactly this
https://kernel.dk/io_uring.pdf
emilfihlman
on June 20, 2021
[–]
Only for io, which is not the same thing.
dsp
on June 20, 2021
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Despite the name, there is nothing io-specific about the io_uring interface. Non-io syscalls can be added. Io syscalls just tend to benefit the most (due to call frequency).
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io_uring enables exactly this
https://kernel.dk/io_uring.pdf