package envoy.extensions.network.socket_interface.v3

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Configuration for default socket interface that relies on OS dependent syscall to create sockets.

• optional IoUringOptions io_uring_options = 1

  io_uring options. io_uring is only valid in Linux with at least kernel version 5.11. Otherwise, Envoy will fall back to use the default socket API. If not set then io_uring will not be enabled.

Used in: DefaultSocketInterface

• optional google.protobuf.UInt32Value io_uring_size = 1

  The size for io_uring submission queues (SQ). io_uring is built with a fixed size in each thread during configuration, and each io_uring operation creates a submission queue entry (SQE). The default is 1000.

• bool enable_submission_queue_polling = 2

  Enable io_uring submission queue polling (SQPOLL). io_uring SQPOLL mode polls all SQEs in the SQ in the kernel thread. io_uring SQPOLL mode may reduce latency and increase CPU usage as a cost. The default is false.

• optional google.protobuf.UInt32Value read_buffer_size = 3

  The size of an io_uring socket's read buffer. Each io_uring read operation will allocate a buffer of the given size. If the given buffer is too small, the socket will have read multiple times for all the data. The default is 8192.

• optional google.protobuf.UInt32Value write_timeout_ms = 4

  The write timeout of an io_uring socket on closing in ms. io_uring writes and closes asynchronously. If the remote stops reading, the io_uring write operation may never complete. The operation is canceled and the socket is closed after the timeout. The default is 1000.