NFS usa RPC? Siiiiiiiiiiiiiiiiiiim.
File Sharing on the WAN: A Matter of LatencyProgrammers who take the RPC approach often make the assumption that the client and the server will be on the same subnet and therefore close to each other. In this scenario, RPCs are not an issue because of the proximity of the client and server.
As soon as the program runs over a WAN, however, that premise causes "chattiness" stemming from the many, many RPCs it must make to complete each task. When the function and the program reside in the same binary, there can still be multiple function calls that degrade performance, but it is not as noticeable, especially on fast systems with lots of memory. The negative effects of chattiness are a lot more dramatic, however, when each function call has to go over a high latency network connection. Because both NFS and CIFS are dependent on RPCs, both also suffer from chattiness.
Valeu! Queria agradecer meu pai, minha mãe e mandar um beijo pra Xuxa!
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