MXNET 1G ECOSYSTEM LATENCY TESTING

• Published December 02 2022, by Tom Devine

The following tests were performed and recorded by Austin Dirks, AVPro Edge AV over IP Engineer.

Based on the following testing, we have determined that system latency with MXNet 1G Ecosystems will equal 1 frame or at 30fps = 33ms or 60fps = 16ms. See chart below and supporting testing photos.

CONNECTION PATHWAY:

TESTING DATA:

Lenovo T480 HDMI output to AC-DA12-AUHD-GEN2. DA12 OUT1 -> MUMONDUAL Monitor #1. DA12 OUT2 -> AC-MXNET-1G-E -> AC-MXNET-SW48 -> AC-MXNET-1G-D -> MUMONDUAL Monitor #2.  

Lenovo T480 outputting 1080P60HZ RGB 8Bit as well as 4K30HZ RGB 8BIT. Ran a stopwatch on PC from https://www.timeanddate.com/stopwatch/. Took 4 images for each test, images taken from iPhone XS Max. Decoder output scaling set to PASSTHROUGH. Data was calculated using BLACK text on the stopwatch. 

ASPEED V1 Chipset:
1080p60Hz RGB 8BIT

Monitor 1: 19.693 Monitor 2: 19.677 ​Total Latency = 16ms	Monitor 1: 18.227 Monitor 2: 18.210 ​Total Latency = 17ms
Monitor 1: 16.811 Monitor 2: 16.794 ​Total Latency = 17ms	Monitor 1: 14.479 Monitor 2: 14.462 ​Total Latency = 17ms

 

4k30HZ RGB 8BIT:

Monitor 1: 20.272 Monitor 2: 20.239 ​Total Latency = 33ms	Monitor 1: 25.319 Monitor 2: 25.286 ​Total Latency = 33ms
Monitor 1: 30.417 Monitor 2: 30.383 ​Total Latency = 34ms	Monitor 1: 35.280 Monitor 2: 35.247 ​Total Latency = 33ms

 

ASPEED V2 Chipset:
1080p60Hz RGB 8BIT

Monitor 1: 23.980 Monitor 2: 23.963 ​Total Latency = 17ms	Monitor 1: 29.994 Monitor 2: 29.977 ​Total Latency = 17ms
Monitor 1: 35.541 Monitor 2: 35.525 Note: camera didn’t catch the clock change on black text, used orange text for this test case. ​ ​Total Latency = 16ms	Monitor 1: 40.205 Monitor 2: 40.188 ​Total Latency = 17ms

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