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Commit Graph

Author	SHA1	Message	Date
Felix Lange	7194c847b6	p2p/rlpx: reduce allocation and syscalls (#22899 ) This change significantly improves the performance of RLPx message reads and writes. In the previous implementation, reading and writing of message frames performed multiple reads and writes on the underlying network connection, and allocated a new []byte buffer for every read. In the new implementation, reads and writes re-use buffers, and perform much fewer system calls on the underlying connection. This doubles the theoretically achievable throughput on a single connection, as shown by the benchmark result: name old speed new speed delta Throughput-8 70.3MB/s ± 0% 155.4MB/s ± 0% +121.11% (p=0.000 n=9+8) The change also removes support for the legacy, pre-EIP-8 handshake encoding. As of May 2021, no actively maintained client sends this format.	4 years ago

Author

SHA1

Message

Date

Felix Lange

7194c847b6

p2p/rlpx: reduce allocation and syscalls (#22899 )

This change significantly improves the performance of RLPx message reads
and writes. In the previous implementation, reading and writing of
message frames performed multiple reads and writes on the underlying
network connection, and allocated a new []byte buffer for every read.

In the new implementation, reads and writes re-use buffers, and perform
much fewer system calls on the underlying connection. This doubles the
theoretically achievable throughput on a single connection, as shown by
the benchmark result:

    name             old speed      new speed       delta
    Throughput-8     70.3MB/s ± 0%  155.4MB/s ± 0%  +121.11%  (p=0.000 n=9+8)

The change also removes support for the legacy, pre-EIP-8 handshake encoding.
As of May 2021, no actively maintained client sends this format.

4 years ago

1 Commits (0a7672fc9aa816ff0ae385da28f2cbd5b36e3677)