[pests]

The Network tab in the Chrome console allows you to degrade your connection. There are presets for Slow/Fast 4G, 3G, or you can make a custom present where you can specify download and upload speeds, latency in ms, a packet loss percent, a packet queue length and can enable packet reordering.

[lelandfe]

There's also an old macOS preference pane called Network Link Conditioner that makes the connections more realistic: https://nshipster.com/network-link-conditioner/

IIRC, Chrome's network simulation just applies a delay after a connection is established

[mh-]

I don't remember the details offhand, but yes - unless Chrome's network simulation has been rewritten in the last few years, it doesn't do a good job of approximating real world network conditions.

It's a lot better than nothing, and doing it realistically would be a lot more work than what they've done, so I say this with all due respect to those who worked on it.

[youngtaff]

Chrome’s network emulation is a pretty poor simulation of the real world… it throttles on a per request basis so can’t simulate congestion due to multiple requests in flight at the same time

Really need something like ipfw, dummynet, tc etc to do it at the packet level