Hi All
I was doing some performance tests for Synapse (which uses HttpCore/NIO)
underneath, and am glad to say that we have great performance for
messages of around ~1K (request and response). However, when the message
size increases to around ~5K (request and response) there is a slight
degrading of performance, and so I would like to learn from you all on
how I could get the best performance out of HttpCore/NIO
My configuration by default starts up a http sender and listener, and
the same for https - creating a total of 4 IO Reactors. I am using 2
workers per reactor, and use 2K byte buffers [each] to read and write
messages.
For the client/sender side I am using 60s SO_TIMEOUT, 10s
CONNECTION_TIMEOUT, 8K SOCKET_BUFFER_SIZE,
STALE_CONNECTION_CHECK off and TCP_NODELAY off
For the server side I am using 60s SO_TIMEOUT, 8K SOCKET_BUFFER_SIZE,
STALE_CONNECTION_CHECK off and TCP_NODELAY off
My configuration is expected to make maximum use of keepalives and
connection reuse. In addition, I am setting the following Linux parameters:
echo "1024 65535" > /proc/sys/net/ipv4/ip_local_port_range
echo "30" > /proc/sys/net/ipv4/tcp_fin_timeout
echo 2097152 > /proc/sys/fs/file-max
echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle
echo 1 > /proc/sys/net/ipv4/tcp_tw_reuse
ulimit unlimited
Any help on this matter is very much appreciated and I believe would
help us create a valuable resource of advice that would help other users
of HttpCore esp in the future
thanks
asankha
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