Technology

What is SBE?
A standard for encoding and decoding FIX and other application protocols in Binary format.

What does SBE do?

1. Fast encoding /decoding of messages at presentation layer
2. Makes use of native CPU level instructions
3. Precision of Decimal numbers/time stamps in native binary format
4. Differentiates fixed length character arrays from variable length strings
5. Preference for fixed position/fixed length fields

How Fast is SBE?
30 Million + messages encoded/decoded on a single thread per second

Average Latency?
30 nanoS per message

What is a Nano Second?
1 billionth of a second
= 0.000 000 001 seconds

Why SBE?

1. Encoding/Decoding messages often uses more CPU time than business logic
2. FIX requires management of heaps of variable length elements which must be sequentially processed
3. SBE’s fixed length fields can be processed much quicker
4. Using binary also keeps bandwidth down when sending messages over a WAN

What is Aeron?
A fast, efficient, reliable UDP message transport

What does Aeron do?
Very fast market data throughput via UDP but also adds the features of Ordering, Reliability, Flow Control that TCP provides

How Fast is Aeron?
20 Million messages/sec

Why Aeron?
Whilst reliable, TCP is slower. UDP is fast but not reliable. Aeron provides Fast and Reliable messaging.

What is Disruptor?
High Performance Mechanism for Inter Thread Messaging

What does Disruptor do?
Non Blocking Ring Buffer
No Contention when accessing buffer Enables Concurrent tasks without Blocking

Why Disruptor?
In Capital Markets we need to be fast but we also need to complete parallel tasks e.g. Replicate/journal for Regulatory, Risk/Credit checks