Measure latency between inbound and outbound TCP packets of a system. For example, tick to order latency of messages that use FIX protocol.
License: GNU Lesser General Public License v3.0
Under modest load of 1000 inbound signals per second, this tool experiences sporadic loss of 1-10 our of ~100K signals.
Debugging shows that these inbound signals are not received by packet handler of jNetPcap. At least by the time we get corresponding outbound signal.
Recently we started getting the following exception in FIX parser code. Happened 3 times during last 24h.
Exception in thread "main" java.nio.BufferUnderflowException
at org.jnetpcap.nio.JBuffer.check(Unknown Source)
at org.jnetpcap.nio.JBuffer.getByte(Unknown Source)
at org.tinyfix.latency.util.AsciiUtils.equals(AsciiUtils.java:21)
at org.tinyfix.latency.protocols.FixMessageTagExtractor.parse(FixMessageTagExtractor.java:35)
at org.tinyfix.latency.LatencyMeterPacketHandler.nextPacket(LatencyMeterPacketHandler.java:46)
at org.jnetpcap.Pcap.loop(Native Method)
at org.jnetpcap.Pcap.loop(Unknown Source)
at org.tinyfix.latency.AbstractCaptureProcessor.runCaptureLoop(AbstractCaptureProcessor.java:108)
at org.tinyfix.latency.LiveCaptureProcessor.run(LiveCaptureProcessor.java:60)
at org.tinyfix.latency.LiveCaptureProcessor.main(LiveCaptureProcessor.java:104)
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