Prototype tool to adaptively induce latency

[osrf-migration]

Original report (archived issue) by Brian Gerkey (Bitbucket: Brian Gerkey, GitHub: gerkey).

---

For the VRC, we want to be as fair as possible to teams, independent of their geographic location. One way to do this is to vary the amount of additional latency that gets injected between the team's OCU and their team code machine based on the intrinsic latency between the OCU and the cloud, specifically, the traffic shaping machine that's doing the latency injection via tc. At the traffic shaper, measure the intrinsic OCU/cloud latency and only add the additional latency required to reach the desired latency.

This ticket asks for a prototype / proof of concept of such a tool.

In an ideal world, we would also be able to modulate packet loss in the same way, based on the intrinsic packet loss. That might be harder. In any case, let's start with latency.

[osrf-migration]

Original comment by Carlos Agüero (Bitbucket: caguero, GitHub: caguero).

---

• changed assignee_account_id from "557058:869c02bb-b246-4cdc-9db3-0064e8add185" to "557058:4ded1ddf-947e-4154-bbd1-3dba24f1bdbd"
• changed assignee from "hugomatic (Bitbucket: hugomatic, GitHub: hugomatic)" to "caguero (Bitbucket: caguero, GitHub: caguero)"

[osrf-migration]

Original comment by Carlos Agüero (Bitbucket: caguero, GitHub: caguero).

---

• changed version from "None" to "1.3"

[osrf-migration]

Original comment by Carlos Agüero (Bitbucket: caguero, GitHub: caguero).

---

• changed state from "new" to "resolved"

Done