removes redundant vector allocations before calling sendmmsg::batch_send #4129
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streamer::sendmmsg::batch_send only requires an ExactSizeIterator: https://github.com/anza-xyz/agave/blob/82347779f/streamer/src/sendmmsg.rs#L169-L175 Collecting an iterator into a vector before calling batch_send is unnecessary and only adds overhead. In particular multi_target_send used in retransmitting shreds can be use without doing an additional vector allocation: https://github.com/anza-xyz/agave/blob/82347779f/streamer/src/sendmmsg.rs#L197
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Problem
streamer::sendmmsg::batch_sendonly requires anExactSizeIterator:https://github.com/anza-xyz/agave/blob/82347779f/streamer/src/sendmmsg.rs#L169-L175
Collecting an iterator into a vector before calling
batch_sendis unnecessary and only adds overhead.In particular
multi_target_sendused in retransmitting shreds can be use without doing an additional vector allocation:https://github.com/anza-xyz/agave/blob/82347779f/streamer/src/sendmmsg.rs#L197
Summary of Changes
Removed redundant vector allocations before calling
streamer::sendmmsg::batch_send.