clash/common/pool/buffer_standard.go

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//go:build !with_low_memory
package pool
const (
// io.Copy default buffer size is 32 KiB
// but the maximum packet size of vmess/shadowsocks is about 16 KiB
// so define a buffer of 20 KiB to reduce the memory of each TCP relay
RelayBufferSize = 20 * 1024
// RelayBufferSize uses 20KiB, but due to the allocator it will actually
// request 32Kib. Most UDPs are smaller than the MTU, and the TUN's MTU
// set to 9000, so the UDP Buffer size set to 16Kib
UDPBufferSize = 16 * 1024
)