Looks like bug 372576 filtered down the gpu section to only builders that actually close the tree. We could potentially do the same for win, mac, linux, etc but I'm a little concerned that sheriffs might use that display to keep an eye on all bots on those masters, even those that don't close the tree.

Changing the name of that title might be best, but I'm not sure what one would change it to. "Very Important Masters"? "Tree closers, and also not tree closers"...?

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available. If you change it back, also remove the "Hotlist-Recharge-Cold" label.

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Not sure if is still valid though.

Erik, has this changed since we changed to LUCI UI? 

We copied everything over to avoid changing too many things at once.

The config defines the header here:
https://chromium.googlesource.com/chromium/src/+/infra/config/luci-milo.cfg

I have no objections to changing things around to make more sense. I think this should be up to CCI to decide how they want everything to be displayed so please feel free to do what's best.

Assigning back to martiniss, please reassign or make available as needed.

We'd need some feature work in LUCI UI to truly fix this bug.

The problem here is that the LUCI UI specifies that all builders on chromium.gpu should show up: https://chromium.googlesource.com/chromium/src/+/infra/config/luci-milo.cfg#229

The chromium gatekeeper tree does this as well, but in the chromium.gpu master config in gatekeeper (https://cs.chromium.org/chromium/build/scripts/slave/gatekeeper.json?l=228) it says to exclude several builders. This is the information that milo needs to know about.

There are two solutions I can think of:

1. Teach LUCI UI to read the gatekeeper files, and understand the excluded builders thing. 

2. Duplicate the list of excluded builders into the luci-milo.cfg file. Need to teach LUCI UI how to exclude builders from a console.

Both require some coding as far as I can tell. Doesn't seem like a really trivial change.

Instead of (2) we could define a new console (builder group) without the excluded builders and reference that from the header.

I don't think I'll have time to do this. I'm going to mark this as available.