Two shuttles connected end to end with an ethernet cable and synchronized with PTP emit signals, and a logic analyzer measures variation in those signals, similar to "Shuttle controlled A20 signal output jitter" measures
**Common test metadata:** Device: Shuttle, Linux kernel version: 4.19, Task priority: 98, Interval: 10000us, Boot Parameters: isolcpus,rcu_nocbs,irqaffinity, ETF qdisc delta: None, Device and processor load: None, Test duration: 0h10, Speed (Mb/s): 1000, ETF offset: 500us, Packet route: E2E, qdisc: pfifo_fast
Minimum | Maximum | Average | Standard deviation | Lost packets
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@@ -102,3 +102,13 @@ Description: Similar to packet_rx_timestamps, but on the transmitting board.
Ignored metadata:
Description: A UDP packet is periodically sent from one board to another and sent back as soon as it arrives using a real time thread. The round trip time is computed with clock_gettime on the transmitting board.
##shuttle_a20_signal_jitter
Ignored metadata:
Description: Two A20 boards are connected end to end with an ethernet cable to a shuttle. All devices are synchronized with PTP. The shuttle sends packets containing timestamps to the boards, and the boards emit a signal at the given timestamp. A logic analyzer measures the variation difference between the signals of the two boards.
##shuttle_signal_jitter
Ignored metadata:
Description: Two shuttles connected end to end with an ethernet cable and synchronized with PTP emit signals, and a logic analyzer measures variation in those signals, similar to "Shuttle controlled A20 signal output jitter" measures
