flux overlay status is slow on large system instances with a flat TBON. There is potential that it is unnecessarily contacting all rank 0 children serially to produce the default output.
Also, for large systems the default output of listing every rank individually is perhaps not that useful. Some sort of compressed format (thought it isn't clear what that would be) or summary (number of brokers online vs degraded vs lost etc) would be more useful (whether in a separate subcommand or not)
flux overlay statusis slow on large system instances with a flat TBON. There is potential that it is unnecessarily contacting all rank 0 children serially to produce the default output.Also, for large systems the default output of listing every rank individually is perhaps not that useful. Some sort of compressed format (thought it isn't clear what that would be) or summary (number of brokers online vs degraded vs lost etc) would be more useful (whether in a separate subcommand or not)