3 ms·
The article says, "...Millennium Exchange was processing messages at a round trip latency of only 126 microseconds..." Is this right, or did the author mean mi
by nopal 16y ago
The article says, "...Millennium Exchange was processing messages at a round trip latency of only 126 microseconds..."
Is this right, or did the author mean milliseconds?
- oogali 16y agomicroseconds. internal messaging latency is measured in microseconds order acknowledgement/cancel/fulfillment is measured in microseconds to low milliseconds.
- moe 16y agoLet me be the first to say that this is pretty damn fast. For reference, try to ping a remote host in your LAN. You'll see about the same roundtrip time (~150 microseconds) and that's without a payload to speak of and without any processing going on.
- jedbrown 16y agoRound-trip latencies for small MPI messages are typically a couple microseconds over InfiniBand, under 10 microseconds for 10G Ethernet without TCP, and a bit more when going through TCP.