Re: [Qemu-devel] [PATCH v7 0/7] trace: [tcg] Optimize per-vCPU tracing states with separate TB caches

[Emilio G. Cota]

On Fri, Jan 13, 2017 at 21:48:09 +0100, Lluís Vilanova wrote:
(snip)
> To handle both issues, this series integrates the dynamic tracing event state
> into the TB hashing function, so that vCPUs tracing different events will use
> separate TBs. Note that only events with the 'vcpu' property are used for
> hashing (as stored in the bitmap of CPUState->trace_dstate).

Is this going to be picked up by anyone? AFAICT the patchset is close
to being merge-ready.

Lluís: I'm very interested in your instrumentation work [1]:

- How much up to date are the branches in [1]? I couldn't find this
  v7 iteration in there, although maybe I didn't look carefully enough.

- Are you planning on upstreaming it? I have some time to help with
  that if you're interested.

- Do you have instrumentation examples beyond what's in
  docs/instrumentation.txt? In particular I'd like to see how the basic
  block (BBL) instrumentation works, i.e. how a 'skeleton' simulator
  would work to decode the guest instructions and also track their
  dependences.

Thanks,

                Emilio

[1] https://projects.gso.ac.upc.edu/projects/qemu-dbi