I have a mix of 7.0.25 and 7.0.28 installs.
I want to run two projects - A and B.
A is the main project, currently set to 75%.
B is the secondary project, currently set to 25%. This project is really only there to keep crunching when project A hiccups.

Most PC's have a work buffer set to 3+1. There does not appear to be a per-project setting for this in BOINC Manager (BM). The project websites have a setting for work buffers on the Device Settings page, but it's doesn't appear to carry over to BM per project.

The problems seem to arise because BOINC seems designed to run a single project at a time, or perhaps balanced projects. Both projects seem to download 3+1 days of work, but because project B runs less frequently, and their workunits seem to have a shorter deadline (on the order of a week), they often seem to end up in high priority mode. Meanwhile, project A plays nice and usually has a deadline of a month.

I haven't figured out a way around this yet, and currently have project B suspended on most PC's.

What am I missing?

Set Project B to a resource share of 0 (zero) (*). Then it will only fetch work when Project A doesn't have work, or when it isn't up & available. It will fetch a full cache of work then, though.

The cache settings are global, they're for all projects.

(*) The project does need reasonably up-to-date back-end software for this to work. If an RS of 0 doesn't set, if it resets to 100, then use an RS of something microscopic, like 0.0001

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Thanks Jord.
It's a shame. I wouldn't mind if project B could use 25% of the spare compute cycles, but my preference is for project A and it was getting overrun, so project B loses out.

In the picture included, SETI is project A, and you can see how it is being overrun by WCG due to the behavior I described.



Hmmm, tried the following (brackets changed for readability):
(img)https://picasaweb.google.com/lh/photo/6shHsXnuLd9Wdyg92lFYqNMTjNZETYmyPJy0liipFm0?feat=directlink(/img)

https://picasaweb.google.com/lh/photo/6shHsXnuLd9Wdyg92lFYqNMTjNZETYmyPJy0liipFm0?feat=directlink