On 16 October 2015 at 14:26, Daniel P. Berrange <berra...@redhat.com> wrote: >> It's also very useful to be able to enable whole *classes* of >> tracing (like "tell me whenever my guest OS does something dumb"); >> does the tracepoint code have any support for this? > > You can use globs in tracepoint names you want to enable. So if the > tracepoints have structured / well considerd name prefixes, you can > enable classses at once.
...but in practice we don't really do that very much, and we don't have documented lists of classes which we support either. Guessing what might be a plausible glob of tracepoint names to enable seems like a definite step back from the formalized logging categories we have currently. -- PMM
