is kafka's zero copy already implemented?

[sunface]

Great project! But i have't seen any content about kafka's zero copy

[robusto]

Also curious about this. Seems like the answer is "no" at the moment, looking at the commitlog sub-package.

Kafka relies on the "sendfile" syscall for the zero-copy and seems important for consumer groups implementation.

[allyraza]

also what I have seen missing is the partitions or shards there is no support for partitions, which is really vital for scalability

[travisjeffery]

Jocko definitely has partitions. But no it doesn't support zero copy because there's no good implementation of zero copy for Go yet.

[Deleted user]

maybe https://github.com/acln0/zerocopy