When Network is Faster than Cache

• pingfs

  19 2,971 0.0 C

  Stores your data in ICMP ping packets

• asio-pipe-transport

  1 3 10.0 C++

  boost::asio transport that creates two pipes over a UNIX socket

OpenOnload supports user-space acceleration of pipes. For our custom applications, we initiate connections over unaccelerated UNIX sockets and then "upgrade" them to accelerated pipes. It's like setting up pairs of shared-memory queues, but all operated via POSIX calls including the ability to watch them with epoll.

This a real old example of this technique using boost::asio [1]. We adapted that from the one in our own reactor library to Onload-pipe-accelerate some OSS that used ASIO.

> Just the time it takes to correctly construct an ethernet frame is not negligible.

For that reason, Onload/TCPDirect (and other vendors too) have APIs that allow you to pre-allocate and prepare packets (headers and payload), then you can do some final tweaks -- like choosing a ticker and price in an order packet -- and then send it out with minimal latency.

[1] https://github.com/neomantra/asio-pipe-transport

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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