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- This data is raw copy from the latency tester set to send a frame with
- a little over 2000 KB of data every 10ms.
- The number of packets sent and received is just a visual counter and
- is just the total when I chose to stop the test (around 3000 or so
- packets).
- The latency measure are from the point the packet was sent to when it
- was received back again in milliseconds. One notable data point
- missing from this is how long it actually took for the client to send
- 3000 packets because sending large packets can put load on the browser
- and it may be a lot longer than 10ms before the timer event to
- send the next packet fires. So even with low latency numbers, the
- actual send rate may be fairly low because sending the WebSockets
- frames is impacting the performance of the browser in general.
- ------------------------------------------------------------
- Native WebSockets implementations, 2000 byte payload, 10ms delay
- Chrome 8.0.552 - native WebSockets
- Packets sent: 2998
- Packets Received: 2998
- Average Latency: 1.84
- 40 Frame Running Average Latency: 1.90
- Minimum Latency: 1.00
- Maximum Latency: 10.00
- firefox 4.0b9 - WebSockets enabled
- Packets sent: 3011
- Packets Received: 3011
- Average Latency: 6.45
- 40 Frame Running Average Latency: 6.08
- Minimum Latency: 5.00
- Maximum Latency: 119.00
- Opera 11 - WebSockets enabled
- Packets sent: 3065
- Packets Received: 3064
- Average Latency: 9.56
- 40 Frame Running Average Latency: 8.15
- Minimum Latency: 4.00
- Maximum Latency: 53.00
- ------------------------------------------------------------
- New web-socket-js (20f837425d4), 2000 byte payload, 10ms delay
- firefox 4.0b9 - no WebSockets
- Packets sent: 3088
- Packets Received: 3087
- Average Latency: 16.71
- 40 Frame Running Average Latency: 16.80
- Minimum Latency: 7.00
- Maximum Latency: 75.00
- - First 1000 sent in 13 seconds
- - Second 1000 sent in 12 seconds
- - Third 1000 sent in 12 seconds
- firefox 3.6.10 - no WebSockets
- Packets sent: 3100
- Packets Received: 3099
- Average Latency: 17.32
- 40 Frame Running Average Latency: 16.73
- Minimum Latency: 6.00
- Maximum Latency: 72.00
- Opera 11 - no WebSockets
- Packets sent: 3007
- Packets Received: 3007
- Average Latency: 465.91
- 40 Frame Running Average Latency: 147.95
- Minimum Latency: 12.00
- Maximum Latency: 9143.00
- - average starts at around 28ms
- - time for each 500 packets: 13s, 16s, 25s, 37s, 50s, 72s
- - also start seeing sent, receive lags around 1200 packets
- ---------------------------------------------------------------
- Old web-socket-js (9e7663771), 2000 byte payload, 10ms delay
- firefox 4.0b9 - no WebSockets
- Packets sent: 3024
- Packets Received: 3020
- Average Latency: 80.59
- 40 Frame Running Average Latency: 60.15
- Minimum Latency: 10.00
- Maximm Latency: 348.00
- firefox 3.6.10 - no WebSockets
- Packets sent: 2777
- Packets Received: 2775
- Average Latency: 34.89
- 40 Frame Running Average Latency: 24.50
- Minimum Latency: 10.00
- Maximum Latency: 208.00
- Opera 11 - no Websockets
- Packets sent: 3012
- Packets Received: 3011
- Average Latency: 380.87
- 40 Frame Running Average Latency: 341.90
- Minimum Latency: 28.00
- Maximum Latency: 2175.00
- - average starts at around 290ms
- - time for each 1000 packets: 23s, 38s, 65s
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